From e3c83c2db458f1e040c5b4bb19773c458e0240a8 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 25 Apr 2012 13:05:24 +1000 Subject: ARM: OMAP2+: INTC: fix suspend abort, set IRQCHIP_SKIP_SET_WAKE Without an ->irq_set_wake() method in an irq_chip, calls to enable_irq_wake() will fail. This also causes these interrupts to not be able to abort suspend (via check_wakeup_irqs() in late suspend.) Currently, we don't implement ->irq_set_wake() for INTC interrupts because they default to be wakeup enabled by setting the GRPSEL bits in PM init. Even though there is no ->irq_set_wake(), we want enable_irq_wake() to succeed so these interrupts can abort suspend when necessary. To fix, set IRQCHIP_SKIP_SET_WAKE flag for all the INTC interrupts which avoids trying to check irq_chip->irq_set_wake() and failing when it doesn't exist. Longer term, we need to implement ->irq_set_wake() for the INTC which can manage the appropriate GRPSEL bits. Signed-off-by: NeilBrown [khilman@ti.com: rework changelog] Acked-by: Santosh Shilimkar Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/irq.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c index 65f0d2571c9a..b0790a995dc9 100644 --- a/arch/arm/mach-omap2/irq.c +++ b/arch/arm/mach-omap2/irq.c @@ -148,6 +148,7 @@ omap_alloc_gc(void __iomem *base, unsigned int irq_start, unsigned int num) ct->chip.irq_ack = omap_mask_ack_irq; ct->chip.irq_mask = irq_gc_mask_disable_reg; ct->chip.irq_unmask = irq_gc_unmask_enable_reg; + ct->chip.flags |= IRQCHIP_SKIP_SET_WAKE; ct->regs.ack = INTC_CONTROL; ct->regs.enable = INTC_MIR_CLEAR0; -- cgit v1.2.3-59-g8ed1b From 99b59df04899a048d1a3ed8bc2b1263779816868 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Fri, 27 Apr 2012 16:05:51 -0700 Subject: ARM: OMAP3: PM: fix shared PRCM interrupts: leave disabled at boot By default, request_irq() will auto-enable the requested IRQ. For PRCM interrupts, we may want to avoid that until the PM core code is fully ready to handle the interrupts. This is particularily true for IO pad interrupts on OMAP3, which are shared between the hwmod core and the PRM core. In order to avoid PRCM IO-chain interrupts until the PM core is ready to handle them, ready, set the IRQ_NOAUTOEN flag for the PRCM IO-chain interrupt, which means it will remain disabled after request_irq(). Then, explicitly enable the PRCM interrupts after the request_irq() in the PM core (but not in the hwmod core.) Special thanks to Tero Kristo for suggesting to isolate the fix to only the IO-chain interrupt on OMAP3 instead of all PRCM interrupts. Cc: Tero Kristo Acked-by: Paul Walmsley Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/pm34xx.c | 1 + arch/arm/mach-omap2/prm2xxx_3xxx.c | 14 +++++++++++--- 2 files changed, 12 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index 703bd1099259..4f44ee517f78 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -729,6 +729,7 @@ static int __init omap3_pm_init(void) ret = request_irq(omap_prcm_event_to_irq("io"), _prcm_int_handle_io, IRQF_SHARED | IRQF_NO_SUSPEND, "pm_io", omap3_pm_init); + enable_irq(omap_prcm_event_to_irq("io")); if (ret) { pr_err("pm: Failed to request pm_io irq\n"); diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.c b/arch/arm/mach-omap2/prm2xxx_3xxx.c index 9ce765407ad5..21cb74003a56 100644 --- a/arch/arm/mach-omap2/prm2xxx_3xxx.c +++ b/arch/arm/mach-omap2/prm2xxx_3xxx.c @@ -15,6 +15,7 @@ #include #include #include +#include #include "common.h" #include @@ -303,8 +304,15 @@ void omap3xxx_prm_restore_irqen(u32 *saved_mask) static int __init omap3xxx_prcm_init(void) { - if (cpu_is_omap34xx()) - return omap_prcm_register_chain_handler(&omap3_prcm_irq_setup); - return 0; + int ret = 0; + + if (cpu_is_omap34xx()) { + ret = omap_prcm_register_chain_handler(&omap3_prcm_irq_setup); + if (!ret) + irq_set_status_flags(omap_prcm_event_to_irq("io"), + IRQ_NOAUTOEN); + } + + return ret; } subsys_initcall(omap3xxx_prcm_init); -- cgit v1.2.3-59-g8ed1b From 1ce029968718477149e7f1fb245a8e82c690cc4a Mon Sep 17 00:00:00 2001 From: "Mark A. Greer" Date: Mon, 30 Apr 2012 16:57:09 -0700 Subject: arm: omap3: am35x: Don't mark missing features as present The Chip Identification register on the am35x family of SoCs has bits 12, 7:5, and 3:2 marked as reserved and are read as zeroes. Unfortunately, on other omap SoCs, a 0 bit means a feature is "Full Use" so the OMAP3_CHECK_FEATURE() macro called by omap3_check_features() will incorrectly interpret those zeroes to mean that a feature is present even though it isn't. To fix that, the feature bits that are incorrectly set (namely, OMAP3_HAS_IVA and OMAP3_HAS_ISP) need to be cleared after all of the calls to OMAP3_CHECK_FEATURE() in omap3_check_features() are made. Signed-off-by: Mark A. Greer [khilman@ti.com: use soc_is_am35xx() instead of cpu_is_am35xx()] Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/id.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index f611e3097157..38ae74f8e77a 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -246,6 +246,17 @@ void __init omap3xxx_check_features(void) omap_features |= OMAP3_HAS_SDRC; + /* + * am35x fixups: + * - The am35x Chip ID register has bits 12, 7:5, and 3:2 marked as + * reserved and therefore return 0 when read. Unfortunately, + * OMAP3_CHECK_FEATURE() will interpret some of those zeroes to + * mean that a feature is present even though it isn't so clear + * the incorrectly set feature bits. + */ + if (soc_is_am35xx()) + omap_features &= ~(OMAP3_HAS_IVA | OMAP3_HAS_ISP); + /* * TODO: Get additional info (where applicable) * e.g. Size of L2 cache. -- cgit v1.2.3-59-g8ed1b From c040be003f16a1bdd7997cc4ab7fc5fd43acb03b Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 16 May 2012 12:01:40 +0200 Subject: ARM i.MX5: fix gpt peripheral clock path - The gpt peripheral clk parent is per_root, not ipg - The register for selectin per_lp_apm and per_root is MXC_CCM_CBCMR, not MXC_CCM_CBCDR Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/clk-imx51-imx53.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c index b8a382defb23..1e7828d6be95 100644 --- a/arch/arm/mach-imx/clk-imx51-imx53.c +++ b/arch/arm/mach-imx/clk-imx51-imx53.c @@ -94,12 +94,12 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil, periph_apm_sel, ARRAY_SIZE(periph_apm_sel)); clk[main_bus] = imx_clk_mux("main_bus", MXC_CCM_CBCDR, 25, 1, main_bus_sel, ARRAY_SIZE(main_bus_sel)); - clk[per_lp_apm] = imx_clk_mux("per_lp_apm", MXC_CCM_CBCDR, 1, 1, + clk[per_lp_apm] = imx_clk_mux("per_lp_apm", MXC_CCM_CBCMR, 1, 1, per_lp_apm_sel, ARRAY_SIZE(per_lp_apm_sel)); clk[per_pred1] = imx_clk_divider("per_pred1", "per_lp_apm", MXC_CCM_CBCDR, 6, 2); clk[per_pred2] = imx_clk_divider("per_pred2", "per_pred1", MXC_CCM_CBCDR, 3, 3); clk[per_podf] = imx_clk_divider("per_podf", "per_pred2", MXC_CCM_CBCDR, 0, 3); - clk[per_root] = imx_clk_mux("per_root", MXC_CCM_CBCDR, 1, 0, + clk[per_root] = imx_clk_mux("per_root", MXC_CCM_CBCMR, 0, 1, per_root_sel, ARRAY_SIZE(per_root_sel)); clk[ahb] = imx_clk_divider("ahb", "main_bus", MXC_CCM_CBCDR, 10, 3); clk[ahb_max] = imx_clk_gate2("ahb_max", "ahb", MXC_CCM_CCGR0, 28); @@ -162,7 +162,7 @@ static void __init mx5_clocks_common_init(unsigned long rate_ckil, clk[pwm1_hf_gate] = imx_clk_gate2("pwm1_hf_gate", "ipg", MXC_CCM_CCGR2, 12); clk[pwm2_ipg_gate] = imx_clk_gate2("pwm2_ipg_gate", "ipg", MXC_CCM_CCGR2, 14); clk[pwm2_hf_gate] = imx_clk_gate2("pwm2_hf_gate", "ipg", MXC_CCM_CCGR2, 16); - clk[gpt_gate] = imx_clk_gate2("gpt_gate", "ipg", MXC_CCM_CCGR2, 18); + clk[gpt_gate] = imx_clk_gate2("gpt_gate", "per_root", MXC_CCM_CCGR2, 18); clk[fec_gate] = imx_clk_gate2("fec_gate", "ipg", MXC_CCM_CCGR2, 24); clk[usboh3_gate] = imx_clk_gate2("usboh3_gate", "ipg", MXC_CCM_CCGR2, 26); clk[usboh3_per_gate] = imx_clk_gate2("usboh3_per_gate", "usboh3_podf", MXC_CCM_CCGR2, 28); -- cgit v1.2.3-59-g8ed1b From 1f152b48eaaf4918047e84777b01a6d687f066e9 Mon Sep 17 00:00:00 2001 From: Richard Zhao Date: Tue, 15 May 2012 15:34:40 +0800 Subject: ARM: i.MX: change timer clock from ipg to perclk Contrary to the ipg clock the perclk rate is not changed or gated in low power mode, so we choose perclk for gpt. With the port to the common clock framework as a side effect the timer used the rate returned from the peripheral clock but the hardware was still programmed to use the ipg clock, so this patch only changes the hardware to really use the clock it already assumed. Signed-off-by: Richard Zhao Signed-off-by: Sascha Hauer --- arch/arm/plat-mxc/time.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/plat-mxc/time.c b/arch/arm/plat-mxc/time.c index 99f958ca6cb8..d865f7960baf 100644 --- a/arch/arm/plat-mxc/time.c +++ b/arch/arm/plat-mxc/time.c @@ -58,6 +58,7 @@ /* MX31, MX35, MX25, MX5 */ #define V2_TCTL_WAITEN (1 << 3) /* Wait enable mode */ #define V2_TCTL_CLK_IPG (1 << 6) +#define V2_TCTL_CLK_PER (2 << 6) #define V2_TCTL_FRR (1 << 9) #define V2_IR 0x0c #define V2_TSTAT 0x08 @@ -309,7 +310,7 @@ void __init mxc_timer_init(struct clk *timer_clk, void __iomem *base, int irq) __raw_writel(0, timer_base + MXC_TPRER); /* see datasheet note */ if (timer_is_v2()) - tctl_val = V2_TCTL_CLK_IPG | V2_TCTL_FRR | V2_TCTL_WAITEN | MXC_TCTL_TEN; + tctl_val = V2_TCTL_CLK_PER | V2_TCTL_FRR | V2_TCTL_WAITEN | MXC_TCTL_TEN; else tctl_val = MX1_2_TCTL_FRR | MX1_2_TCTL_CLK_PCLK1 | MXC_TCTL_TEN; -- cgit v1.2.3-59-g8ed1b From 2cfb45188a997ba4c3348e98a999b36663a4646f Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Wed, 16 May 2012 12:29:53 +0200 Subject: ARM i.MX: remove now unnecessary argument from mxc_timer_init As the timer code now does a clk_get to get its clock we don't need the struct clk argument anymore. This also changes the alternative EPIT timer to do a clk_get. Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/clk-imx1.c | 3 +-- arch/arm/mach-imx/clk-imx21.c | 4 ++-- arch/arm/mach-imx/clk-imx25.c | 2 +- arch/arm/mach-imx/clk-imx27.c | 3 +-- arch/arm/mach-imx/clk-imx31.c | 3 +-- arch/arm/mach-imx/clk-imx35.c | 6 ++---- arch/arm/mach-imx/clk-imx51-imx53.c | 6 ++---- arch/arm/mach-imx/clk-imx6q.c | 2 +- arch/arm/plat-mxc/epit.c | 11 ++++++++++- arch/arm/plat-mxc/include/mach/common.h | 4 ++-- arch/arm/plat-mxc/time.c | 21 ++++++++++----------- 11 files changed, 33 insertions(+), 32 deletions(-) diff --git a/arch/arm/mach-imx/clk-imx1.c b/arch/arm/mach-imx/clk-imx1.c index 0f0beb580b73..516ddee1948e 100644 --- a/arch/arm/mach-imx/clk-imx1.c +++ b/arch/arm/mach-imx/clk-imx1.c @@ -108,8 +108,7 @@ int __init mx1_clocks_init(unsigned long fref) clk_register_clkdev(clk[clk32], NULL, "mxc_rtc.0"); clk_register_clkdev(clk[clko], "clko", NULL); - mxc_timer_init(NULL, MX1_IO_ADDRESS(MX1_TIM1_BASE_ADDR), - MX1_TIM1_INT); + mxc_timer_init(MX1_IO_ADDRESS(MX1_TIM1_BASE_ADDR), MX1_TIM1_INT); return 0; } diff --git a/arch/arm/mach-imx/clk-imx21.c b/arch/arm/mach-imx/clk-imx21.c index 4e4f384ee8dd..ea13e61bd5f3 100644 --- a/arch/arm/mach-imx/clk-imx21.c +++ b/arch/arm/mach-imx/clk-imx21.c @@ -180,7 +180,7 @@ int __init mx21_clocks_init(unsigned long lref, unsigned long href) clk_register_clkdev(clk[sdhc1_ipg_gate], "sdhc1", NULL); clk_register_clkdev(clk[sdhc2_ipg_gate], "sdhc2", NULL); - mxc_timer_init(NULL, MX21_IO_ADDRESS(MX21_GPT1_BASE_ADDR), - MX21_INT_GPT1); + mxc_timer_init(MX21_IO_ADDRESS(MX21_GPT1_BASE_ADDR), MX21_INT_GPT1); + return 0; } diff --git a/arch/arm/mach-imx/clk-imx25.c b/arch/arm/mach-imx/clk-imx25.c index d9833bb5fd61..fdd8cc87c9fe 100644 --- a/arch/arm/mach-imx/clk-imx25.c +++ b/arch/arm/mach-imx/clk-imx25.c @@ -243,6 +243,6 @@ int __init mx25_clocks_init(void) clk_register_clkdev(clk[sdma_ahb], "ahb", "imx35-sdma"); clk_register_clkdev(clk[iim_ipg], "iim", NULL); - mxc_timer_init(NULL, MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), 54); + mxc_timer_init(MX25_IO_ADDRESS(MX25_GPT1_BASE_ADDR), 54); return 0; } diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c index 50a7ebd8d1b2..295cbd7c08dc 100644 --- a/arch/arm/mach-imx/clk-imx27.c +++ b/arch/arm/mach-imx/clk-imx27.c @@ -263,8 +263,7 @@ int __init mx27_clocks_init(unsigned long fref) clk_register_clkdev(clk[ssi1_baud_gate], "bitrate" , "imx-ssi.0"); clk_register_clkdev(clk[ssi2_baud_gate], "bitrate" , "imx-ssi.1"); - mxc_timer_init(NULL, MX27_IO_ADDRESS(MX27_GPT1_BASE_ADDR), - MX27_INT_GPT1); + mxc_timer_init(MX27_IO_ADDRESS(MX27_GPT1_BASE_ADDR), MX27_INT_GPT1); clk_prepare_enable(clk[emi_ahb_gate]); diff --git a/arch/arm/mach-imx/clk-imx31.c b/arch/arm/mach-imx/clk-imx31.c index a854b9cae5ea..c9a06d800f8e 100644 --- a/arch/arm/mach-imx/clk-imx31.c +++ b/arch/arm/mach-imx/clk-imx31.c @@ -175,8 +175,7 @@ int __init mx31_clocks_init(unsigned long fref) mx31_revision(); clk_disable_unprepare(clk[iim_gate]); - mxc_timer_init(NULL, MX31_IO_ADDRESS(MX31_GPT1_BASE_ADDR), - MX31_INT_GPT); + mxc_timer_init(MX31_IO_ADDRESS(MX31_GPT1_BASE_ADDR), MX31_INT_GPT); return 0; } diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c index a9e60bf7dd75..920a8cc42726 100644 --- a/arch/arm/mach-imx/clk-imx35.c +++ b/arch/arm/mach-imx/clk-imx35.c @@ -267,11 +267,9 @@ int __init mx35_clocks_init() imx_print_silicon_rev("i.MX35", mx35_revision()); #ifdef CONFIG_MXC_USE_EPIT - epit_timer_init(&epit1_clk, - MX35_IO_ADDRESS(MX35_EPIT1_BASE_ADDR), MX35_INT_EPIT1); + epit_timer_init(MX35_IO_ADDRESS(MX35_EPIT1_BASE_ADDR), MX35_INT_EPIT1); #else - mxc_timer_init(NULL, MX35_IO_ADDRESS(MX35_GPT1_BASE_ADDR), - MX35_INT_GPT); + mxc_timer_init(MX35_IO_ADDRESS(MX35_GPT1_BASE_ADDR), MX35_INT_GPT); #endif return 0; diff --git a/arch/arm/mach-imx/clk-imx51-imx53.c b/arch/arm/mach-imx/clk-imx51-imx53.c index 1e7828d6be95..c1739f6078d5 100644 --- a/arch/arm/mach-imx/clk-imx51-imx53.c +++ b/arch/arm/mach-imx/clk-imx51-imx53.c @@ -329,8 +329,7 @@ int __init mx51_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, clk_set_rate(clk[esdhc_b_podf], 166250000); /* System timer */ - mxc_timer_init(NULL, MX51_IO_ADDRESS(MX51_GPT1_BASE_ADDR), - MX51_INT_GPT); + mxc_timer_init(MX51_IO_ADDRESS(MX51_GPT1_BASE_ADDR), MX51_INT_GPT); clk_prepare_enable(clk[iim_gate]); imx_print_silicon_rev("i.MX51", mx51_revision()); @@ -412,8 +411,7 @@ int __init mx53_clocks_init(unsigned long rate_ckil, unsigned long rate_osc, clk_set_rate(clk[esdhc_b_podf], 200000000); /* System timer */ - mxc_timer_init(NULL, MX53_IO_ADDRESS(MX53_GPT1_BASE_ADDR), - MX53_INT_GPT); + mxc_timer_init(MX53_IO_ADDRESS(MX53_GPT1_BASE_ADDR), MX53_INT_GPT); clk_prepare_enable(clk[iim_gate]); imx_print_silicon_rev("i.MX53", mx53_revision()); diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c index f40a35da2e5c..24324f2dac95 100644 --- a/arch/arm/mach-imx/clk-imx6q.c +++ b/arch/arm/mach-imx/clk-imx6q.c @@ -433,7 +433,7 @@ int __init mx6q_clocks_init(void) base = of_iomap(np, 0); WARN_ON(!base); irq = irq_of_parse_and_map(np, 0); - mxc_timer_init(NULL, base, irq); + mxc_timer_init(base, irq); return 0; } diff --git a/arch/arm/plat-mxc/epit.c b/arch/arm/plat-mxc/epit.c index 9129c9e7d532..88726f4dbbfa 100644 --- a/arch/arm/plat-mxc/epit.c +++ b/arch/arm/plat-mxc/epit.c @@ -50,6 +50,7 @@ #include #include #include +#include #include #include @@ -201,8 +202,16 @@ static int __init epit_clockevent_init(struct clk *timer_clk) return 0; } -void __init epit_timer_init(struct clk *timer_clk, void __iomem *base, int irq) +void __init epit_timer_init(void __iomem *base, int irq) { + struct clk *timer_clk; + + timer_clk = clk_get_sys("imx-epit.0", NULL); + if (IS_ERR(timer_clk)) { + pr_err("i.MX epit: unable to get clk\n"); + return; + } + clk_prepare_enable(timer_clk); timer_base = base; diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h index 0319c4a0cafa..da02540f4bd4 100644 --- a/arch/arm/plat-mxc/include/mach/common.h +++ b/arch/arm/plat-mxc/include/mach/common.h @@ -53,8 +53,8 @@ extern void imx35_soc_init(void); extern void imx50_soc_init(void); extern void imx51_soc_init(void); extern void imx53_soc_init(void); -extern void epit_timer_init(struct clk *timer_clk, void __iomem *base, int irq); -extern void mxc_timer_init(struct clk *timer_clk, void __iomem *, int); +extern void epit_timer_init(void __iomem *base, int irq); +extern void mxc_timer_init(void __iomem *, int); extern int mx1_clocks_init(unsigned long fref); extern int mx21_clocks_init(unsigned long lref, unsigned long fref); extern int mx25_clocks_init(void); diff --git a/arch/arm/plat-mxc/time.c b/arch/arm/plat-mxc/time.c index d865f7960baf..00e8e659e667 100644 --- a/arch/arm/plat-mxc/time.c +++ b/arch/arm/plat-mxc/time.c @@ -281,23 +281,22 @@ static int __init mxc_clockevent_init(struct clk *timer_clk) return 0; } -void __init mxc_timer_init(struct clk *timer_clk, void __iomem *base, int irq) +void __init mxc_timer_init(void __iomem *base, int irq) { uint32_t tctl_val; + struct clk *timer_clk; struct clk *timer_ipg_clk; - if (!timer_clk) { - timer_clk = clk_get_sys("imx-gpt.0", "per"); - if (IS_ERR(timer_clk)) { - pr_err("i.MX timer: unable to get clk\n"); - return; - } - - timer_ipg_clk = clk_get_sys("imx-gpt.0", "ipg"); - if (!IS_ERR(timer_ipg_clk)) - clk_prepare_enable(timer_ipg_clk); + timer_clk = clk_get_sys("imx-gpt.0", "per"); + if (IS_ERR(timer_clk)) { + pr_err("i.MX timer: unable to get clk\n"); + return; } + timer_ipg_clk = clk_get_sys("imx-gpt.0", "ipg"); + if (!IS_ERR(timer_ipg_clk)) + clk_prepare_enable(timer_ipg_clk); + clk_prepare_enable(timer_clk); timer_base = base; -- cgit v1.2.3-59-g8ed1b From b0286f20c36d0c1e7537489daddaf574abf403dd Mon Sep 17 00:00:00 2001 From: Richard Zhao Date: Mon, 14 May 2012 13:04:47 +0800 Subject: ARM: imx6q: prepare and enable init on clks directly instead of clk_get first This also removes the usboh3 clk from the initially turned on clocks which leaked in from an internal development tree. Signed-off-by: Richard Zhao Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/clk-imx6q.c | 20 ++++++-------------- 1 file changed, 6 insertions(+), 14 deletions(-) diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c index 24324f2dac95..7b4751dbe749 100644 --- a/arch/arm/mach-imx/clk-imx6q.c +++ b/arch/arm/mach-imx/clk-imx6q.c @@ -122,10 +122,6 @@ static const char *cko1_sels[] = { "pll3_usb_otg", "pll2_bus", "pll1_sys", "pll5 "dummy", "axi", "enfc", "ipu1_di0", "ipu1_di1", "ipu2_di0", "ipu2_di1", "ahb", "ipg", "ipg_per", "ckil", "pll4_audio", }; -static const char * const clks_init_on[] __initconst = { - "mmdc_ch0_axi", "mmdc_ch1_axi", "usboh3", -}; - enum mx6q_clks { dummy, ckil, ckih, osc, pll2_pfd0_352m, pll2_pfd1_594m, pll2_pfd2_396m, pll3_pfd0_720m, pll3_pfd1_540m, pll3_pfd2_508m, pll3_pfd3_454m, @@ -160,11 +156,14 @@ enum mx6q_clks { static struct clk *clk[clk_max]; +static enum mx6q_clks const clks_init_on[] __initconst = { + mmdc_ch0_axi, mmdc_ch1_axi, +}; + int __init mx6q_clocks_init(void) { struct device_node *np; void __iomem *base; - struct clk *c; int i, irq; clk[dummy] = imx_clk_fixed("dummy", 0); @@ -419,15 +418,8 @@ int __init mx6q_clocks_init(void) clk_register_clkdev(clk[dummy], NULL, "20bc000.wdog"); clk_register_clkdev(clk[dummy], NULL, "20c0000.wdog"); - for (i = 0; i < ARRAY_SIZE(clks_init_on); i++) { - c = clk_get_sys(clks_init_on[i], NULL); - if (IS_ERR(c)) { - pr_err("%s: failed to get clk %s", __func__, - clks_init_on[i]); - return PTR_ERR(c); - } - clk_prepare_enable(c); - } + for (i = 0; i < ARRAY_SIZE(clks_init_on); i++) + clk_prepare_enable(clk[clks_init_on[i]]); np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-gpt"); base = of_iomap(np, 0); -- cgit v1.2.3-59-g8ed1b From 00633d7c7a0243940fc616bee573bcf497db79b9 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Wed, 4 Jan 2012 15:33:17 -0800 Subject: ARM: OMAP3: clock data: cleanup AM3[35]x SoC detection Use the more generic SoC family soc_is_am35xx() instead of the specific cpu_is_omap3517() (which is being removed.) Acked-by: Vaibhav Hiremath Tested-by: Vaibhav Hiremath Tested-by: Mark A. Greer Cc: Paul Walmsley Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/clock3xxx_data.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c index 4e1a3b0e8cc8..1efdec236ae8 100644 --- a/arch/arm/mach-omap2/clock3xxx_data.c +++ b/arch/arm/mach-omap2/clock3xxx_data.c @@ -3514,7 +3514,7 @@ int __init omap3xxx_clk_init(void) struct omap_clk *c; u32 cpu_clkflg = 0; - if (cpu_is_omap3517()) { + if (soc_is_am35xx()) { cpu_mask = RATE_IN_34XX; cpu_clkflg = CK_AM35XX; } else if (cpu_is_omap3630()) { -- cgit v1.2.3-59-g8ed1b From 96f3994929c05a21d757a83613d2710b780ea2b4 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Fri, 11 May 2012 16:38:11 -0700 Subject: ARM: OMAP: SoC detection: remove unused cpu_is macros Remove multiple unused cpu_is_omap35xx macros. In particular, the cpu_is_omap35* macros for 3503, 3515, 3525 are removed because they are using omap_has_* feature checks and we want to remove specific feature detection from SoC family detection. There are no longer any cpu_is_* checks that depend on specific IP detection. Acked-by: Vaibhav Hiremath Tested-by: Vaibhav Hiremath Tested-by: Mark A. Greer Signed-off-by: Kevin Hilman --- arch/arm/plat-omap/include/plat/cpu.h | 33 --------------------------------- 1 file changed, 33 deletions(-) diff --git a/arch/arm/plat-omap/include/plat/cpu.h b/arch/arm/plat-omap/include/plat/cpu.h index 4bdf14ec6747..0f8a201cee68 100644 --- a/arch/arm/plat-omap/include/plat/cpu.h +++ b/arch/arm/plat-omap/include/plat/cpu.h @@ -250,8 +250,6 @@ IS_AM_SUBCLASS(335x, 0x335) * cpu_is_omap2423(): True for OMAP2423 * cpu_is_omap2430(): True for OMAP2430 * cpu_is_omap3430(): True for OMAP3430 - * cpu_is_omap3505(): True for OMAP3505 - * cpu_is_omap3517(): True for OMAP3517 */ #define GET_OMAP_TYPE ((omap_rev() >> 16) & 0xffff) @@ -275,8 +273,6 @@ IS_OMAP_TYPE(2422, 0x2422) IS_OMAP_TYPE(2423, 0x2423) IS_OMAP_TYPE(2430, 0x2430) IS_OMAP_TYPE(3430, 0x3430) -IS_OMAP_TYPE(3505, 0x3517) -IS_OMAP_TYPE(3517, 0x3517) #define cpu_is_omap310() 0 #define cpu_is_omap730() 0 @@ -291,12 +287,6 @@ IS_OMAP_TYPE(3517, 0x3517) #define cpu_is_omap2422() 0 #define cpu_is_omap2423() 0 #define cpu_is_omap2430() 0 -#define cpu_is_omap3503() 0 -#define cpu_is_omap3515() 0 -#define cpu_is_omap3525() 0 -#define cpu_is_omap3530() 0 -#define cpu_is_omap3505() 0 -#define cpu_is_omap3517() 0 #define cpu_is_omap3430() 0 #define cpu_is_omap3630() 0 @@ -348,31 +338,12 @@ IS_OMAP_TYPE(3517, 0x3517) #if defined(CONFIG_ARCH_OMAP3) # undef cpu_is_omap3430 -# undef cpu_is_omap3503 -# undef cpu_is_omap3515 -# undef cpu_is_omap3525 -# undef cpu_is_omap3530 -# undef cpu_is_omap3505 -# undef cpu_is_omap3517 # undef cpu_is_ti81xx # undef cpu_is_ti816x # undef cpu_is_ti814x # undef cpu_is_am33xx # undef cpu_is_am335x # define cpu_is_omap3430() is_omap3430() -# define cpu_is_omap3503() (cpu_is_omap3430() && \ - (!omap3_has_iva()) && \ - (!omap3_has_sgx())) -# define cpu_is_omap3515() (cpu_is_omap3430() && \ - (!omap3_has_iva()) && \ - (omap3_has_sgx())) -# define cpu_is_omap3525() (cpu_is_omap3430() && \ - (!omap3_has_sgx()) && \ - (omap3_has_iva())) -# define cpu_is_omap3530() (cpu_is_omap3430()) -# define cpu_is_omap3517() is_omap3517() -# define cpu_is_omap3505() (cpu_is_omap3517() && \ - !omap3_has_sgx()) # undef cpu_is_omap3630 # define cpu_is_omap3630() is_omap363x() # define cpu_is_ti81xx() is_ti81xx() @@ -420,10 +391,6 @@ IS_OMAP_TYPE(3517, 0x3517) #define OMAP3630_REV_ES1_1 (OMAP363X_CLASS | (0x1 << 8)) #define OMAP3630_REV_ES1_2 (OMAP363X_CLASS | (0x2 << 8)) -#define OMAP3517_CLASS 0x35170034 -#define OMAP3517_REV_ES1_0 OMAP3517_CLASS -#define OMAP3517_REV_ES1_1 (OMAP3517_CLASS | (0x1 << 8)) - #define TI816X_CLASS 0x81600034 #define TI8168_REV_ES1_0 TI816X_CLASS #define TI8168_REV_ES1_1 (TI816X_CLASS | (0x1 << 8)) -- cgit v1.2.3-59-g8ed1b From 3ef7cf1839061b275ee1fc59c042194dc452b7e2 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 21 May 2012 16:09:06 -0300 Subject: ARM: mx31_3ds: Fix build due to missing IMX_HAVE_PLATFORM_IMX_SSI commit 5fb86e5 (ARM: mx31_3ds: Add sound support) missed to select IMX_HAVE_PLATFORM_IMX_SSI, which causes the following build error when only mx31_3ds is selected: arch/arm/mach-imx/built-in.o: In function `mx31_3ds_init': mach-mx31_3ds.c:(.init.text+0x15dc): undefined reference to `imx_add_imx_ssi' mach-mx31_3ds.c:(.init.text+0x16b8): undefined reference to `imx31_imx_ssi_data' Select IMX_HAVE_PLATFORM_IMX_SSI to fix it. Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig index 7561eca131b0..8abcee3c34d0 100644 --- a/arch/arm/mach-imx/Kconfig +++ b/arch/arm/mach-imx/Kconfig @@ -467,6 +467,7 @@ config MACH_MX31_3DS select IMX_HAVE_PLATFORM_IMX2_WDT select IMX_HAVE_PLATFORM_IMX_I2C select IMX_HAVE_PLATFORM_IMX_KEYPAD + select IMX_HAVE_PLATFORM_IMX_SSI select IMX_HAVE_PLATFORM_IMX_UART select IMX_HAVE_PLATFORM_IPU_CORE select IMX_HAVE_PLATFORM_MXC_EHCI -- cgit v1.2.3-59-g8ed1b From 1064f8893ee1d16178d983928912057352362dc2 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Wed, 2 May 2012 22:08:07 +0200 Subject: ARM: imx: only specify i2c device type once MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The first argument of I2C_BOARD_INFO is used to assign .type, so drop second assignment. Signed-off-by: Uwe Kleine-König Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/mach-cpuimx35.c | 1 - arch/arm/mach-imx/mach-cpuimx51sd.c | 1 - 2 files changed, 2 deletions(-) diff --git a/arch/arm/mach-imx/mach-cpuimx35.c b/arch/arm/mach-imx/mach-cpuimx35.c index 8ecc872b2547..b1a4796548b5 100644 --- a/arch/arm/mach-imx/mach-cpuimx35.c +++ b/arch/arm/mach-imx/mach-cpuimx35.c @@ -70,7 +70,6 @@ static struct i2c_board_info eukrea_cpuimx35_i2c_devices[] = { I2C_BOARD_INFO("pcf8563", 0x51), }, { I2C_BOARD_INFO("tsc2007", 0x48), - .type = "tsc2007", .platform_data = &tsc2007_info, .irq = IMX_GPIO_TO_IRQ(TSC2007_IRQGPIO), }, diff --git a/arch/arm/mach-imx/mach-cpuimx51sd.c b/arch/arm/mach-imx/mach-cpuimx51sd.c index 9fbe923c8b08..89eb93cec601 100644 --- a/arch/arm/mach-imx/mach-cpuimx51sd.c +++ b/arch/arm/mach-imx/mach-cpuimx51sd.c @@ -124,7 +124,6 @@ static struct i2c_board_info eukrea_cpuimx51sd_i2c_devices[] = { I2C_BOARD_INFO("pcf8563", 0x51), }, { I2C_BOARD_INFO("tsc2007", 0x49), - .type = "tsc2007", .platform_data = &tsc2007_info, .irq = IMX_GPIO_TO_IRQ(TSC2007_IRQGPIO), }, -- cgit v1.2.3-59-g8ed1b From f90da3c7a52ac0c8f07f4d6cd0a7f7677e831916 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Fri, 18 May 2012 16:58:03 +0200 Subject: ARM: imx: only call l2x0_init if it's available MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes a build failure with CONFIG_CACHE_L2X0=n: arch/arm/mach-imx/built-in.o: In function `imx3_init_l2x0': imx53-dt.c:(.init.text+0x190): undefined reference to `l2x0_init' make[2]: *** [.tmp_vmlinux1] Error 1 make[1]: *** [sub-make] Error 2 make: *** [all] Error 2 When the l2 cache isn't enabled the quirk introduced in 9524705 (MX35: Fix bogus L2 cache settings) doesn't need to be done either. Signed-off-by: Uwe Kleine-König Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/mm-imx3.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c index 74127389e7ab..6a80496d72dc 100644 --- a/arch/arm/mach-imx/mm-imx3.c +++ b/arch/arm/mach-imx/mm-imx3.c @@ -81,6 +81,7 @@ static void __iomem *imx3_ioremap_caller(unsigned long phys_addr, size_t size, void __init imx3_init_l2x0(void) { +#ifdef CONFIG_CACHE_L2X0 void __iomem *l2x0_base; void __iomem *clkctl_base; @@ -110,6 +111,7 @@ void __init imx3_init_l2x0(void) } l2x0_init(l2x0_base, 0x00030024, 0x00000000); +#endif } #ifdef CONFIG_SOC_IMX31 -- cgit v1.2.3-59-g8ed1b From 8c9ce606a60e4a0cb447bdc082ce383b96b227b4 Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Fri, 25 May 2012 16:11:09 -0400 Subject: xen/blkback: Copy id field when doing BLKIF_DISCARD. We weren't copying the id field so when we sent the response back to the frontend (especially with a 64-bit host and 32-bit guest), we ended up using a random value. This lead to the frontend crashing as it would try to pass to __blk_end_request_all a NULL 'struct request' (b/c it would use the 'id' to find the proper 'struct request' in its shadow array) and end up crashing: BUG: unable to handle kernel NULL pointer dereference at 000000e4 IP: [] __blk_end_request_all+0xc/0x40 .. snip.. EIP is at __blk_end_request_all+0xc/0x40 .. snip.. [] blkif_interrupt+0x172/0x330 [xen_blkfront] This fixes the bug by passing in the proper id for the response. Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=824641 CC: stable@kernel.org Tested-by: William Dauchy Acked-by: Stefano Stabellini Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkback/common.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/block/xen-blkback/common.h b/drivers/block/xen-blkback/common.h index 773cf27dc23f..9ad3b5ec1dc1 100644 --- a/drivers/block/xen-blkback/common.h +++ b/drivers/block/xen-blkback/common.h @@ -257,6 +257,7 @@ static inline void blkif_get_x86_32_req(struct blkif_request *dst, break; case BLKIF_OP_DISCARD: dst->u.discard.flag = src->u.discard.flag; + dst->u.discard.id = src->u.discard.id; dst->u.discard.sector_number = src->u.discard.sector_number; dst->u.discard.nr_sectors = src->u.discard.nr_sectors; break; @@ -287,6 +288,7 @@ static inline void blkif_get_x86_64_req(struct blkif_request *dst, break; case BLKIF_OP_DISCARD: dst->u.discard.flag = src->u.discard.flag; + dst->u.discard.id = src->u.discard.id; dst->u.discard.sector_number = src->u.discard.sector_number; dst->u.discard.nr_sectors = src->u.discard.nr_sectors; break; -- cgit v1.2.3-59-g8ed1b From d8dc3494f77a5cc3b274bae36f7e74e85cf8a407 Mon Sep 17 00:00:00 2001 From: Marc Dionne Date: Fri, 1 Jun 2012 18:12:14 -0400 Subject: HID: logitech: don't use stack based dj_report structures On a system with a logitech wireless keyboard/mouse and DMA-API debugging enabled, this warning appears at boot: kernel: WARNING: at lib/dma-debug.c:929 check_for_stack.part.12+0x70/0xa7() kernel: Hardware name: MS-7593 kernel: uhci_hcd 0000:00:1d.1: DMA-API: device driver maps memory fromstack [addr=ffff8801b0079c29] Make logi_dj_recv_query_paired_devices and logi_dj_recv_switch_to_dj_mode use a structure allocated with kzalloc rather than a stack based one. Signed-off-by: Marc Dionne Signed-off-by: Jiri Kosina --- drivers/hid/hid-logitech-dj.c | 38 ++++++++++++++++++++++++-------------- 1 file changed, 24 insertions(+), 14 deletions(-) diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c index 5e8a7ed42344..0f9c146fc00d 100644 --- a/drivers/hid/hid-logitech-dj.c +++ b/drivers/hid/hid-logitech-dj.c @@ -436,27 +436,37 @@ static int logi_dj_recv_send_report(struct dj_receiver_dev *djrcv_dev, static int logi_dj_recv_query_paired_devices(struct dj_receiver_dev *djrcv_dev) { - struct dj_report dj_report; + struct dj_report *dj_report; + int retval; - memset(&dj_report, 0, sizeof(dj_report)); - dj_report.report_id = REPORT_ID_DJ_SHORT; - dj_report.device_index = 0xFF; - dj_report.report_type = REPORT_TYPE_CMD_GET_PAIRED_DEVICES; - return logi_dj_recv_send_report(djrcv_dev, &dj_report); + dj_report = kzalloc(sizeof(dj_report), GFP_KERNEL); + if (!dj_report) + return -ENOMEM; + dj_report->report_id = REPORT_ID_DJ_SHORT; + dj_report->device_index = 0xFF; + dj_report->report_type = REPORT_TYPE_CMD_GET_PAIRED_DEVICES; + retval = logi_dj_recv_send_report(djrcv_dev, dj_report); + kfree(dj_report); + return retval; } static int logi_dj_recv_switch_to_dj_mode(struct dj_receiver_dev *djrcv_dev, unsigned timeout) { - struct dj_report dj_report; + struct dj_report *dj_report; + int retval; - memset(&dj_report, 0, sizeof(dj_report)); - dj_report.report_id = REPORT_ID_DJ_SHORT; - dj_report.device_index = 0xFF; - dj_report.report_type = REPORT_TYPE_CMD_SWITCH; - dj_report.report_params[CMD_SWITCH_PARAM_DEVBITFIELD] = 0x3F; - dj_report.report_params[CMD_SWITCH_PARAM_TIMEOUT_SECONDS] = (u8)timeout; - return logi_dj_recv_send_report(djrcv_dev, &dj_report); + dj_report = kzalloc(sizeof(dj_report), GFP_KERNEL); + if (!dj_report) + return -ENOMEM; + dj_report->report_id = REPORT_ID_DJ_SHORT; + dj_report->device_index = 0xFF; + dj_report->report_type = REPORT_TYPE_CMD_SWITCH; + dj_report->report_params[CMD_SWITCH_PARAM_DEVBITFIELD] = 0x3F; + dj_report->report_params[CMD_SWITCH_PARAM_TIMEOUT_SECONDS] = (u8)timeout; + retval = logi_dj_recv_send_report(djrcv_dev, dj_report); + kfree(dj_report); + return retval; } -- cgit v1.2.3-59-g8ed1b From 87c9ea76a242c2f9063e2a8f3e90846c932c61a7 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Sun, 3 Jun 2012 21:56:21 +0530 Subject: mtip32xx: Remove version.h header file inclusion version.h header file inclusion is no longer required. Signed-off-by: Sachin Kamat --- drivers/block/mtip32xx/mtip32xx.h | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h index b2c88da26b2a..adb1aae3b752 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -26,7 +26,6 @@ #include #include #include -#include /* Offset of Subsystem Device ID in pci confoguration space */ #define PCI_SUBSYSTEM_DEVICEID 0x2E -- cgit v1.2.3-59-g8ed1b From fd7949564ced88385ca7758a4c1f47c274233dd5 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 4 Jun 2012 10:01:38 +0200 Subject: block: fix return value on cfq_init() failure cfq_init() would return zero after kmem cache creation failure. Fix so that it returns -ENOMEM. Signed-off-by: Tejun Heo Signed-off-by: Jens Axboe --- block/cfq-iosched.c | 1 + 1 file changed, 1 insertion(+) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index 673c977cc2bf..ae5113d3ebae 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -4202,6 +4202,7 @@ static int __init cfq_init(void) if (ret) return ret; + ret = -ENOMEM; cfq_pool = KMEM_CACHE(cfq_queue, 0); if (!cfq_pool) goto err_pol_unreg; -- cgit v1.2.3-59-g8ed1b From ffea73fc723a12fdde4c9fb3fcce5d154d1104a1 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 4 Jun 2012 10:02:29 +0200 Subject: block: blkcg_policy_cfq shouldn't be used if !CONFIG_CFQ_GROUP_IOSCHED cfq may be built w/ or w/o blkcg support depending on CONFIG_CFQ_CGROUP_IOSCHED. If blkcg support is disabled, most of related code is ifdef'd out but some part is left dangling - blkcg_policy_cfq is left zero-filled and blkcg_policy_[un]register() calls are made on it. Feeding zero filled policy to blkcg_policy_register() is incorrect and triggers the following WARN_ON() if CONFIG_BLK_CGROUP && !CONFIG_CFQ_GROUP_IOSCHED. ------------[ cut here ]------------ WARNING: at block/blk-cgroup.c:867 Modules linked in: Modules linked in: CPU: 3 Not tainted 3.4.0-09547-gfb21aff #1 Process swapper/0 (pid: 1, task: 000000003ff80000, ksp: 000000003ff7f8b8) Krnl PSW : 0704100180000000 00000000003d76ca (blkcg_policy_register+0xca/0xe0) R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:1 PM:0 EA:3 Krnl GPRS: 0000000000000000 00000000014b85ec 00000000014b85b0 0000000000000000 000000000096fb60 0000000000000000 00000000009a8e78 0000000000000048 000000000099c070 0000000000b6f000 0000000000000000 000000000099c0b8 00000000014b85b0 0000000000667580 000000003ff7fd98 000000003ff7fd70 Krnl Code: 00000000003d76be: a7280001 lhi %r2,1 00000000003d76c2: a7f4ffdf brc 15,3d7680 #00000000003d76c6: a7f40001 brc 15,3d76c8 >00000000003d76ca: a7c8ffea lhi %r12,-22 00000000003d76ce: a7f4ffce brc 15,3d766a 00000000003d76d2: a7f40001 brc 15,3d76d4 00000000003d76d6: a7c80000 lhi %r12,0 00000000003d76da: a7f4ffc2 brc 15,3d765e Call Trace: ([<0000000000b6f000>] initcall_debug+0x0/0x4) [<0000000000989e8a>] cfq_init+0x62/0xd4 [<00000000001000ba>] do_one_initcall+0x3a/0x170 [<000000000096fb60>] kernel_init+0x214/0x2bc [<0000000000623202>] kernel_thread_starter+0x6/0xc [<00000000006231fc>] kernel_thread_starter+0x0/0xc no locks held by swapper/0/1. Last Breaking-Event-Address: [<00000000003d76c6>] blkcg_policy_register+0xc6/0xe0 ---[ end trace b8ef4903fcbf9dd3 ]--- This patch fixes the problem by ensuring all blkcg support code is inside CONFIG_CFQ_GROUP_IOSCHED. * blkcg_policy_cfq declaration and blkg_to_cfqg() definition are moved inside the first CONFIG_CFQ_GROUP_IOSCHED block. __maybe_unused is dropped from blkcg_policy_cfq decl. * blkcg_deactivate_poilcy() invocation is moved inside ifdef. This also makes the activation logic match cfq_init_queue(). * All blkcg_policy_[un]register() invocations are moved inside ifdef. Signed-off-by: Tejun Heo Reported-by: Heiko Carstens LKML-Reference: <20120601112954.GC3535@osiris.boeblingen.de.ibm.com> Signed-off-by: Jens Axboe --- block/cfq-iosched.c | 29 +++++++++++++++++------------ 1 file changed, 17 insertions(+), 12 deletions(-) diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c index ae5113d3ebae..fb52df9744f5 100644 --- a/block/cfq-iosched.c +++ b/block/cfq-iosched.c @@ -17,8 +17,6 @@ #include "blk.h" #include "blk-cgroup.h" -static struct blkcg_policy blkcg_policy_cfq __maybe_unused; - /* * tunables */ @@ -418,11 +416,6 @@ static inline struct cfq_group *pd_to_cfqg(struct blkg_policy_data *pd) return pd ? container_of(pd, struct cfq_group, pd) : NULL; } -static inline struct cfq_group *blkg_to_cfqg(struct blkcg_gq *blkg) -{ - return pd_to_cfqg(blkg_to_pd(blkg, &blkcg_policy_cfq)); -} - static inline struct blkcg_gq *cfqg_to_blkg(struct cfq_group *cfqg) { return pd_to_blkg(&cfqg->pd); @@ -572,6 +565,13 @@ static inline void cfqg_stats_update_avg_queue_size(struct cfq_group *cfqg) { } #ifdef CONFIG_CFQ_GROUP_IOSCHED +static struct blkcg_policy blkcg_policy_cfq; + +static inline struct cfq_group *blkg_to_cfqg(struct blkcg_gq *blkg) +{ + return pd_to_cfqg(blkg_to_pd(blkg, &blkcg_policy_cfq)); +} + static inline void cfqg_get(struct cfq_group *cfqg) { return blkg_get(cfqg_to_blkg(cfqg)); @@ -3951,10 +3951,11 @@ static void cfq_exit_queue(struct elevator_queue *e) cfq_shutdown_timer_wq(cfqd); -#ifndef CONFIG_CFQ_GROUP_IOSCHED +#ifdef CONFIG_CFQ_GROUP_IOSCHED + blkcg_deactivate_policy(q, &blkcg_policy_cfq); +#else kfree(cfqd->root_group); #endif - blkcg_deactivate_policy(q, &blkcg_policy_cfq); kfree(cfqd); } @@ -4194,13 +4195,13 @@ static int __init cfq_init(void) #ifdef CONFIG_CFQ_GROUP_IOSCHED if (!cfq_group_idle) cfq_group_idle = 1; -#else - cfq_group_idle = 0; -#endif ret = blkcg_policy_register(&blkcg_policy_cfq); if (ret) return ret; +#else + cfq_group_idle = 0; +#endif ret = -ENOMEM; cfq_pool = KMEM_CACHE(cfq_queue, 0); @@ -4216,13 +4217,17 @@ static int __init cfq_init(void) err_free_pool: kmem_cache_destroy(cfq_pool); err_pol_unreg: +#ifdef CONFIG_CFQ_GROUP_IOSCHED blkcg_policy_unregister(&blkcg_policy_cfq); +#endif return ret; } static void __exit cfq_exit(void) { +#ifdef CONFIG_CFQ_GROUP_IOSCHED blkcg_policy_unregister(&blkcg_policy_cfq); +#endif elv_unregister(&iosched_cfq); kmem_cache_destroy(cfq_pool); } -- cgit v1.2.3-59-g8ed1b From 9b2ea86bc9e940950a088e9795ab28f006e73276 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Mon, 4 Jun 2012 15:21:00 +0900 Subject: blkcg: fix blkg_alloc() failure path When policy data allocation fails in the middle, blkg_alloc() invokes blkg_free() to destroy the half constructed blkg. This ends up calling pd_exit_fn() on policy datas which didn't go through pd_init_fn(). Fix it by making blkg_alloc() call pd_init_fn() immediately after each policy data allocation. Signed-off-by: Tejun Heo Acked-by: Vivek Goyal Signed-off-by: Jens Axboe --- block/blk-cgroup.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 02cf6335e9bd..4ab7420ba465 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -125,12 +125,8 @@ static struct blkcg_gq *blkg_alloc(struct blkcg *blkcg, struct request_queue *q) blkg->pd[i] = pd; pd->blkg = blkg; - } - - /* invoke per-policy init */ - for (i = 0; i < BLKCG_MAX_POLS; i++) { - struct blkcg_policy *pol = blkcg_policy[i]; + /* invoke per-policy init */ if (blkcg_policy_enabled(blkg->q, pol)) pol->pd_init_fn(blkg); } -- cgit v1.2.3-59-g8ed1b From 4d04317f6efab7359ae56e50cc9c60e9804b5015 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Mon, 4 Jun 2012 00:13:25 -0700 Subject: ARM: OMAP: Fix lis3lv02d accelerometer to use gpio_to_irq Commit 3b511201 (ARM: OMAP: rx51: Platform support for lis3lv02d accelerometer) added support for lis3lv02d accelerometer. The patch was still using OMAP_GPIO_IRQ which no longer exists. Fix it by using gpio_to_irq(). Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-rx51-peripherals.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c index ff53deccecab..df2534de3361 100644 --- a/arch/arm/mach-omap2/board-rx51-peripherals.c +++ b/arch/arm/mach-omap2/board-rx51-peripherals.c @@ -144,7 +144,6 @@ static struct lis3lv02d_platform_data rx51_lis3lv02d_data = { .release_resources = lis302_release, .st_min_limits = {-32, 3, 3}, .st_max_limits = {-3, 32, 32}, - .irq2 = OMAP_GPIO_IRQ(LIS302_IRQ2_GPIO), }; #endif @@ -1030,7 +1029,6 @@ static struct i2c_board_info __initdata rx51_peripherals_i2c_board_info_3[] = { { I2C_BOARD_INFO("lis3lv02d", 0x1d), .platform_data = &rx51_lis3lv02d_data, - .irq = OMAP_GPIO_IRQ(LIS302_IRQ1_GPIO), }, #endif }; @@ -1056,6 +1054,10 @@ static int __init rx51_i2c_init(void) omap_pmic_init(1, 2200, "twl5030", INT_34XX_SYS_NIRQ, &rx51_twldata); omap_register_i2c_bus(2, 100, rx51_peripherals_i2c_board_info_2, ARRAY_SIZE(rx51_peripherals_i2c_board_info_2)); +#if defined(CONFIG_SENSORS_LIS3_I2C) || defined(CONFIG_SENSORS_LIS3_I2C_MODULE) + rx51_lis3lv02d_data.irq2 = gpio_to_irq(LIS302_IRQ2_GPIO); + rx51_peripherals_i2c_board_info_3[0].irq = gpio_to_irq(LIS302_IRQ1_GPIO); +#endif omap_register_i2c_bus(3, 400, rx51_peripherals_i2c_board_info_3, ARRAY_SIZE(rx51_peripherals_i2c_board_info_3)); return 0; -- cgit v1.2.3-59-g8ed1b From 6cc90d6de16532fe68b54ee6967894f7ca83affa Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 4 Jun 2012 12:21:21 +0200 Subject: ARM i.MX pllv2: use standard register set unconditionally The i.MX5 PLL has two different register sets for setting the rate. One is used for the standard case and and is used for DVFS. Which one of them is used depends on a hardware input of the PLL. Current implementation reads back from the hardware which setting is used. This is bogus: If we ever want to implement DVFS we have to program both register sets and not only the one which happens to be used at the moment. For now, just use the standard register set uncondionally. Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/clk-pllv2.c | 35 +++++++++++------------------------ 1 file changed, 11 insertions(+), 24 deletions(-) diff --git a/arch/arm/mach-imx/clk-pllv2.c b/arch/arm/mach-imx/clk-pllv2.c index 4685919deb63..1b0307195a6e 100644 --- a/arch/arm/mach-imx/clk-pllv2.c +++ b/arch/arm/mach-imx/clk-pllv2.c @@ -78,7 +78,7 @@ static unsigned long clk_pllv2_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { long mfi, mfn, mfd, pdf, ref_clk, mfn_abs; - unsigned long dp_op, dp_mfd, dp_mfn, dp_ctl, pll_hfsm, dbl; + unsigned long dp_op, dp_mfd, dp_mfn, dp_ctl, dbl; void __iomem *pllbase; s64 temp; struct clk_pllv2 *pll = to_clk_pllv2(hw); @@ -86,18 +86,12 @@ static unsigned long clk_pllv2_recalc_rate(struct clk_hw *hw, pllbase = pll->base; dp_ctl = __raw_readl(pllbase + MXC_PLL_DP_CTL); - pll_hfsm = dp_ctl & MXC_PLL_DP_CTL_HFSM; dbl = dp_ctl & MXC_PLL_DP_CTL_DPDCK0_2_EN; - if (pll_hfsm == 0) { - dp_op = __raw_readl(pllbase + MXC_PLL_DP_OP); - dp_mfd = __raw_readl(pllbase + MXC_PLL_DP_MFD); - dp_mfn = __raw_readl(pllbase + MXC_PLL_DP_MFN); - } else { - dp_op = __raw_readl(pllbase + MXC_PLL_DP_HFS_OP); - dp_mfd = __raw_readl(pllbase + MXC_PLL_DP_HFS_MFD); - dp_mfn = __raw_readl(pllbase + MXC_PLL_DP_HFS_MFN); - } + dp_op = __raw_readl(pllbase + MXC_PLL_DP_OP); + dp_mfd = __raw_readl(pllbase + MXC_PLL_DP_MFD); + dp_mfn = __raw_readl(pllbase + MXC_PLL_DP_MFN); + pdf = dp_op & MXC_PLL_DP_OP_PDF_MASK; mfi = (dp_op & MXC_PLL_DP_OP_MFI_MASK) >> MXC_PLL_DP_OP_MFI_OFFSET; mfi = (mfi <= 5) ? 5 : mfi; @@ -132,7 +126,7 @@ static int clk_pllv2_set_rate(struct clk_hw *hw, unsigned long rate, long mfi, pdf, mfn, mfd = 999999; s64 temp64; unsigned long quad_parent_rate; - unsigned long pll_hfsm, dp_ctl; + unsigned long dp_ctl; pllbase = pll->base; @@ -151,18 +145,11 @@ static int clk_pllv2_set_rate(struct clk_hw *hw, unsigned long rate, dp_ctl = __raw_readl(pllbase + MXC_PLL_DP_CTL); /* use dpdck0_2 */ __raw_writel(dp_ctl | 0x1000L, pllbase + MXC_PLL_DP_CTL); - pll_hfsm = dp_ctl & MXC_PLL_DP_CTL_HFSM; - if (pll_hfsm == 0) { - reg = mfi << 4 | pdf; - __raw_writel(reg, pllbase + MXC_PLL_DP_OP); - __raw_writel(mfd, pllbase + MXC_PLL_DP_MFD); - __raw_writel(mfn, pllbase + MXC_PLL_DP_MFN); - } else { - reg = mfi << 4 | pdf; - __raw_writel(reg, pllbase + MXC_PLL_DP_HFS_OP); - __raw_writel(mfd, pllbase + MXC_PLL_DP_HFS_MFD); - __raw_writel(mfn, pllbase + MXC_PLL_DP_HFS_MFN); - } + + reg = mfi << 4 | pdf; + __raw_writel(reg, pllbase + MXC_PLL_DP_OP); + __raw_writel(mfd, pllbase + MXC_PLL_DP_MFD); + __raw_writel(mfn, pllbase + MXC_PLL_DP_MFN); return 0; } -- cgit v1.2.3-59-g8ed1b From 9ca41bccc39f5ebbbb515dfadb2e0f912168c8bd Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 4 Jun 2012 14:51:32 +0200 Subject: ARM i.MX pllv2: make round_rate accurate in round_rate we made the assumption that we can set arbitrary frequencies and thus returned the input rate. This is not correct, for certain frequencies after setting a frequency with set_rate, recalc_rate will return different values. To fix this, introduce set_rate/recalc_rate functions which work on variables instead of registers directly. This way we can call these in round_rate to get the exact rate which we would get if we call set_rate with this value. Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/clk-pllv2.c | 78 ++++++++++++++++++++++++++++++------------- 1 file changed, 54 insertions(+), 24 deletions(-) diff --git a/arch/arm/mach-imx/clk-pllv2.c b/arch/arm/mach-imx/clk-pllv2.c index 1b0307195a6e..0440379e3628 100644 --- a/arch/arm/mach-imx/clk-pllv2.c +++ b/arch/arm/mach-imx/clk-pllv2.c @@ -74,24 +74,15 @@ struct clk_pllv2 { void __iomem *base; }; -static unsigned long clk_pllv2_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) +static unsigned long __clk_pllv2_recalc_rate(unsigned long parent_rate, + u32 dp_ctl, u32 dp_op, u32 dp_mfd, u32 dp_mfn) { long mfi, mfn, mfd, pdf, ref_clk, mfn_abs; - unsigned long dp_op, dp_mfd, dp_mfn, dp_ctl, dbl; - void __iomem *pllbase; + unsigned long dbl; s64 temp; - struct clk_pllv2 *pll = to_clk_pllv2(hw); - - pllbase = pll->base; - dp_ctl = __raw_readl(pllbase + MXC_PLL_DP_CTL); dbl = dp_ctl & MXC_PLL_DP_CTL_DPDCK0_2_EN; - dp_op = __raw_readl(pllbase + MXC_PLL_DP_OP); - dp_mfd = __raw_readl(pllbase + MXC_PLL_DP_MFD); - dp_mfn = __raw_readl(pllbase + MXC_PLL_DP_MFN); - pdf = dp_op & MXC_PLL_DP_OP_PDF_MASK; mfi = (dp_op & MXC_PLL_DP_OP_MFI_MASK) >> MXC_PLL_DP_OP_MFI_OFFSET; mfi = (mfi <= 5) ? 5 : mfi; @@ -117,18 +108,30 @@ static unsigned long clk_pllv2_recalc_rate(struct clk_hw *hw, return temp; } -static int clk_pllv2_set_rate(struct clk_hw *hw, unsigned long rate, +static unsigned long clk_pllv2_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) { + u32 dp_op, dp_mfd, dp_mfn, dp_ctl; + void __iomem *pllbase; struct clk_pllv2 *pll = to_clk_pllv2(hw); + + pllbase = pll->base; + + dp_ctl = __raw_readl(pllbase + MXC_PLL_DP_CTL); + dp_op = __raw_readl(pllbase + MXC_PLL_DP_OP); + dp_mfd = __raw_readl(pllbase + MXC_PLL_DP_MFD); + dp_mfn = __raw_readl(pllbase + MXC_PLL_DP_MFN); + + return __clk_pllv2_recalc_rate(parent_rate, dp_ctl, dp_op, dp_mfd, dp_mfn); +} + +static int __clk_pllv2_set_rate(unsigned long rate, unsigned long parent_rate, + u32 *dp_op, u32 *dp_mfd, u32 *dp_mfn) +{ u32 reg; - void __iomem *pllbase; long mfi, pdf, mfn, mfd = 999999; s64 temp64; unsigned long quad_parent_rate; - unsigned long dp_ctl; - - pllbase = pll->base; quad_parent_rate = 4 * parent_rate; pdf = mfi = -1; @@ -138,18 +141,41 @@ static int clk_pllv2_set_rate(struct clk_hw *hw, unsigned long rate, return -EINVAL; pdf--; - temp64 = rate * (pdf+1) - quad_parent_rate * mfi; - do_div(temp64, quad_parent_rate/1000000); + temp64 = rate * (pdf + 1) - quad_parent_rate * mfi; + do_div(temp64, quad_parent_rate / 1000000); mfn = (long)temp64; + reg = mfi << 4 | pdf; + + *dp_op = reg; + *dp_mfd = mfd; + *dp_mfn = mfn; + + return 0; +} + +static int clk_pllv2_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_pllv2 *pll = to_clk_pllv2(hw); + void __iomem *pllbase; + u32 dp_ctl, dp_op, dp_mfd, dp_mfn; + int ret; + + pllbase = pll->base; + + + ret = __clk_pllv2_set_rate(rate, parent_rate, &dp_op, &dp_mfd, &dp_mfn); + if (ret) + return ret; + dp_ctl = __raw_readl(pllbase + MXC_PLL_DP_CTL); /* use dpdck0_2 */ __raw_writel(dp_ctl | 0x1000L, pllbase + MXC_PLL_DP_CTL); - reg = mfi << 4 | pdf; - __raw_writel(reg, pllbase + MXC_PLL_DP_OP); - __raw_writel(mfd, pllbase + MXC_PLL_DP_MFD); - __raw_writel(mfn, pllbase + MXC_PLL_DP_MFN); + __raw_writel(dp_op, pllbase + MXC_PLL_DP_OP); + __raw_writel(dp_mfd, pllbase + MXC_PLL_DP_MFD); + __raw_writel(dp_mfn, pllbase + MXC_PLL_DP_MFN); return 0; } @@ -157,7 +183,11 @@ static int clk_pllv2_set_rate(struct clk_hw *hw, unsigned long rate, static long clk_pllv2_round_rate(struct clk_hw *hw, unsigned long rate, unsigned long *prate) { - return rate; + u32 dp_op, dp_mfd, dp_mfn; + + __clk_pllv2_set_rate(rate, *prate, &dp_op, &dp_mfd, &dp_mfn); + return __clk_pllv2_recalc_rate(*prate, MXC_PLL_DP_CTL_DPDCK0_2_EN, + dp_op, dp_mfd, dp_mfn); } static int clk_pllv2_prepare(struct clk_hw *hw) -- cgit v1.2.3-59-g8ed1b From cdd781ab1906d039c2a93078385645d2d5af8491 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Mon, 4 Jun 2012 14:58:07 +0200 Subject: ARM i.MX53: Fix PLL4 base address MX53_DPLL4_BASE accidently returned the base address of PLL3. Fix this. Signed-off-by: Sascha Hauer Cc: stable@vger.kernel.org --- arch/arm/mach-imx/crm-regs-imx5.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-imx/crm-regs-imx5.h b/arch/arm/mach-imx/crm-regs-imx5.h index 5e11ba7daee2..5e3f1f0f4cab 100644 --- a/arch/arm/mach-imx/crm-regs-imx5.h +++ b/arch/arm/mach-imx/crm-regs-imx5.h @@ -23,7 +23,7 @@ #define MX53_DPLL1_BASE MX53_IO_ADDRESS(MX53_PLL1_BASE_ADDR) #define MX53_DPLL2_BASE MX53_IO_ADDRESS(MX53_PLL2_BASE_ADDR) #define MX53_DPLL3_BASE MX53_IO_ADDRESS(MX53_PLL3_BASE_ADDR) -#define MX53_DPLL4_BASE MX53_IO_ADDRESS(MX53_PLL3_BASE_ADDR) +#define MX53_DPLL4_BASE MX53_IO_ADDRESS(MX53_PLL4_BASE_ADDR) /* PLL Register Offsets */ #define MXC_PLL_DP_CTL 0x00 -- cgit v1.2.3-59-g8ed1b From 9f132652d94c96476b0b0a8caf0c10e96ab10fa8 Mon Sep 17 00:00:00 2001 From: Pavel Vasilyev Date: Tue, 5 Jun 2012 00:02:05 -0400 Subject: ACPI sysfs.c strlen fix Current code is ignoring the last character of "enable" and "disable" in comparisons. https://bugzilla.kernel.org/show_bug.cgi?id=33732 Signed-off-by: Len Brown --- drivers/acpi/sysfs.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 9f66181c814e..240a24400976 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -173,7 +173,7 @@ static int param_set_trace_state(const char *val, struct kernel_param *kp) { int result = 0; - if (!strncmp(val, "enable", strlen("enable") - 1)) { + if (!strncmp(val, "enable", strlen("enable"))) { result = acpi_debug_trace(trace_method_name, trace_debug_level, trace_debug_layer, 0); if (result) @@ -181,7 +181,7 @@ static int param_set_trace_state(const char *val, struct kernel_param *kp) goto exit; } - if (!strncmp(val, "disable", strlen("disable") - 1)) { + if (!strncmp(val, "disable", strlen("disable"))) { int name = 0; result = acpi_debug_trace((char *)&name, trace_debug_level, trace_debug_layer, 0); -- cgit v1.2.3-59-g8ed1b From d802bf6f098c134181397496cac8dbc80f441a75 Mon Sep 17 00:00:00 2001 From: Michael Hennerich Date: Mon, 21 May 2012 14:30:31 +0200 Subject: iio: documentation: Add out_altvoltage and friends Continuous frequency/clock generating devices, such as DDSs or PLLs should use out_altvoltage. Signed-off-by: Michael Hennerich Acked-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- Documentation/ABI/testing/sysfs-bus-iio | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-bus-iio b/Documentation/ABI/testing/sysfs-bus-iio index 5bc8a476c15e..cfedf63cce15 100644 --- a/Documentation/ABI/testing/sysfs-bus-iio +++ b/Documentation/ABI/testing/sysfs-bus-iio @@ -219,6 +219,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_scale What: /sys/bus/iio/devices/iio:deviceX/in_voltageY_supply_scale What: /sys/bus/iio/devices/iio:deviceX/in_voltage_scale What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_scale +What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_scale What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale What: /sys/bus/iio/devices/iio:deviceX/in_accel_peak_scale What: /sys/bus/iio/devices/iio:deviceX/in_anglvel_scale @@ -273,6 +274,7 @@ What: /sys/bus/iio/devices/iio:deviceX/in_accel_scale_available What: /sys/.../iio:deviceX/in_voltageX_scale_available What: /sys/.../iio:deviceX/in_voltage-voltage_scale_available What: /sys/.../iio:deviceX/out_voltageX_scale_available +What: /sys/.../iio:deviceX/out_altvoltageX_scale_available What: /sys/.../iio:deviceX/in_capacitance_scale_available KernelVersion: 2.635 Contact: linux-iio@vger.kernel.org @@ -298,14 +300,19 @@ Description: gives the 3dB frequency of the filter in Hz. What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_raw +What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_raw KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: Raw (unscaled, no bias etc.) output voltage for channel Y. The number must always be specified and unique if the output corresponds to a single channel. + While DAC like devices typically use out_voltage, + a continuous frequency generating device, such as + a DDS or PLL should use out_altvoltage. What: /sys/bus/iio/devices/iio:deviceX/out_voltageY&Z_raw +What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY&Z_raw KernelVersion: 2.6.37 Contact: linux-iio@vger.kernel.org Description: @@ -316,6 +323,8 @@ Description: What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown_mode What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown_mode +What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown_mode +What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown_mode KernelVersion: 2.6.38 Contact: linux-iio@vger.kernel.org Description: @@ -330,6 +339,8 @@ Description: What: /sys/.../iio:deviceX/out_votlageY_powerdown_mode_available What: /sys/.../iio:deviceX/out_voltage_powerdown_mode_available +What: /sys/.../iio:deviceX/out_altvotlageY_powerdown_mode_available +What: /sys/.../iio:deviceX/out_altvoltage_powerdown_mode_available KernelVersion: 2.6.38 Contact: linux-iio@vger.kernel.org Description: @@ -338,6 +349,8 @@ Description: What: /sys/bus/iio/devices/iio:deviceX/out_voltageY_powerdown What: /sys/bus/iio/devices/iio:deviceX/out_voltage_powerdown +What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown +What: /sys/bus/iio/devices/iio:deviceX/out_altvoltage_powerdown KernelVersion: 2.6.38 Contact: linux-iio@vger.kernel.org Description: @@ -346,6 +359,24 @@ Description: normal operation. Y may be suppressed if all outputs are controlled together. +What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency +KernelVersion: 3.4.0 +Contact: linux-iio@vger.kernel.org +Description: + Output frequency for channel Y in Hz. The number must always be + specified and unique if the output corresponds to a single + channel. + +What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_phase +KernelVersion: 3.4.0 +Contact: linux-iio@vger.kernel.org +Description: + Phase in radians of one frequency/clock output Y + (out_altvoltageY) relative to another frequency/clock output + (out_altvoltageZ) of the device X. The number must always be + specified and unique if the output corresponds to a single + channel. + What: /sys/bus/iio/devices/iio:deviceX/events KernelVersion: 2.6.35 Contact: linux-iio@vger.kernel.org -- cgit v1.2.3-59-g8ed1b From 04723de09d034c1f1f871787ebbc6cc2e474dd2f Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Tue, 22 May 2012 12:30:02 +0200 Subject: staging:iio: remove num_interrupt_lines from documentation Commit 5aa9618896e0ba49 ("staging:iio: remove broken support for multiple event interfaces.") removed the num_interrupt_lines field from struct iio_info but the documentation was never updated. Signed-off-by: Johan Hovold Acked-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/staging/iio/Documentation/device.txt | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/staging/iio/Documentation/device.txt b/drivers/staging/iio/Documentation/device.txt index 0338c7cd0a8b..f03fbd3bb454 100644 --- a/drivers/staging/iio/Documentation/device.txt +++ b/drivers/staging/iio/Documentation/device.txt @@ -29,8 +29,6 @@ Then fill in the following: * info->driver_module: Set to THIS_MODULE. Used to ensure correct ownership of various resources allocate by the core. - * info->num_interrupt_lines: - Number of event triggering hardware lines the device has. * info->event_attrs: Attributes used to enable / disable hardware events. * info->attrs: -- cgit v1.2.3-59-g8ed1b From e407fd655bf9b40c38cba29aa7d38149989798bb Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 4 Jun 2012 10:41:42 +0200 Subject: iio: Fix potential use after free There is no guarantee that the last reference to the iio device has already been dropped when iio_device_free is called. This means that we can up calling iio_dev_release after iio_device_free which will lead to a use after free. As the general rule the struct containing the device should always be freed in the release callback. This is what this patch does, it moves freeing the iio device struct as well as releasing the idr reference to the release callback. To ensure that the device is not freed before calling iio_device_free the device_unregister call in iio_device_unregister is broken apart. iio_device_unregister will now only call device_del to remove the device from the system and iio_device_free will call put_device to drop the reference we obtained in iio_devce_alloc. We also have to take care that calling iio_device_free without having called iio_device_register still works (i.e. this can happen if something failed during device initialization). For this to work properly two minor changes were necessary: channel_attr_list needs to be initialized in iio_device_alloc and we have to check whether the chrdev has been registered before releasing it in iio_device_release. This change also brings iio_device_unregister and iio_device_free more in sync with iio_device_register and iio_device_alloc which call device_add and device_initialize respectively. Signed-off-by: Lars-Peter Clausen Acked-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/industrialio-core.c | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/iio/industrialio-core.c b/drivers/iio/industrialio-core.c index 1ddd8861c71b..4f947e4377ef 100644 --- a/drivers/iio/industrialio-core.c +++ b/drivers/iio/industrialio-core.c @@ -661,7 +661,6 @@ static int iio_device_register_sysfs(struct iio_dev *indio_dev) * New channel registration method - relies on the fact a group does * not need to be initialized if it is name is NULL. */ - INIT_LIST_HEAD(&indio_dev->channel_attr_list); if (indio_dev->channels) for (i = 0; i < indio_dev->num_channels; i++) { ret = iio_device_add_channel_sysfs(indio_dev, @@ -725,12 +724,16 @@ static void iio_device_unregister_sysfs(struct iio_dev *indio_dev) static void iio_dev_release(struct device *device) { struct iio_dev *indio_dev = dev_to_iio_dev(device); - cdev_del(&indio_dev->chrdev); + if (indio_dev->chrdev.dev) + cdev_del(&indio_dev->chrdev); if (indio_dev->modes & INDIO_BUFFER_TRIGGERED) iio_device_unregister_trigger_consumer(indio_dev); iio_device_unregister_eventset(indio_dev); iio_device_unregister_sysfs(indio_dev); iio_device_unregister_debugfs(indio_dev); + + ida_simple_remove(&iio_ida, indio_dev->id); + kfree(indio_dev); } static struct device_type iio_dev_type = { @@ -761,6 +764,7 @@ struct iio_dev *iio_device_alloc(int sizeof_priv) dev_set_drvdata(&dev->dev, (void *)dev); mutex_init(&dev->mlock); mutex_init(&dev->info_exist_lock); + INIT_LIST_HEAD(&dev->channel_attr_list); dev->id = ida_simple_get(&iio_ida, 0, 0, GFP_KERNEL); if (dev->id < 0) { @@ -778,10 +782,8 @@ EXPORT_SYMBOL(iio_device_alloc); void iio_device_free(struct iio_dev *dev) { - if (dev) { - ida_simple_remove(&iio_ida, dev->id); - kfree(dev); - } + if (dev) + put_device(&dev->dev); } EXPORT_SYMBOL(iio_device_free); @@ -902,7 +904,7 @@ void iio_device_unregister(struct iio_dev *indio_dev) mutex_lock(&indio_dev->info_exist_lock); indio_dev->info = NULL; mutex_unlock(&indio_dev->info_exist_lock); - device_unregister(&indio_dev->dev); + device_del(&indio_dev->dev); } EXPORT_SYMBOL(iio_device_unregister); subsys_initcall(iio_init); -- cgit v1.2.3-59-g8ed1b From 76eb9a30db4bc8fd172f9155247264b5f2686d7b Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Mon, 20 Feb 2012 14:20:06 +0800 Subject: ACPI, x86: fix Dell M6600 ACPI reboot regression via DMI Dell Precision M6600 is known to require PCI reboot, so add it to the reboot blacklist in pci_reboot_dmi_table[]. https://bugzilla.kernel.org/show_bug.cgi?id=42749 cc: x86@kernel.org Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- arch/x86/kernel/reboot.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index 79c45af81604..412db5716d91 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -451,6 +451,14 @@ static struct dmi_system_id __initdata reboot_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex 990"), }, }, + { /* Handle problems with rebooting on the Precision M6600. */ + .callback = set_pci_reboot, + .ident = "Dell OptiPlex 990", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Precision M6600"), + }, + }, { } }; -- cgit v1.2.3-59-g8ed1b From 7412ff139d73f5561492478e89a22aede7252b7b Mon Sep 17 00:00:00 2001 From: Asai Thambi S P Date: Mon, 4 Jun 2012 12:43:03 -0700 Subject: mtip32xx: Remove 'registers' and 'flags' from sysfs This patch removes entries 'registers' and 'flags' from sysfs. Updated ABI file to reflect this change. Reported-by: Greg Kroah-Hartman Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe --- Documentation/ABI/testing/sysfs-block-rssd | 21 ------- drivers/block/mtip32xx/mtip32xx.c | 92 +----------------------------- 2 files changed, 1 insertion(+), 112 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-block-rssd b/Documentation/ABI/testing/sysfs-block-rssd index 679ce3543122..beef30c046b0 100644 --- a/Documentation/ABI/testing/sysfs-block-rssd +++ b/Documentation/ABI/testing/sysfs-block-rssd @@ -1,26 +1,5 @@ -What: /sys/block/rssd*/registers -Date: March 2012 -KernelVersion: 3.3 -Contact: Asai Thambi S P -Description: This is a read-only file. Dumps below driver information and - hardware registers. - - S ACTive - - Command Issue - - Completed - - PORT IRQ STAT - - HOST IRQ STAT - - Allocated - - Commands in Q - What: /sys/block/rssd*/status Date: April 2012 KernelVersion: 3.4 Contact: Asai Thambi S P Description: This is a read-only file. Indicates the status of the device. - -What: /sys/block/rssd*/flags -Date: May 2012 -KernelVersion: 3.5 -Contact: Asai Thambi S P -Description: This is a read-only file. Dumps the flags in port and driver - data structure diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index 264bc77dcb91..b6e95b911b8c 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -2546,7 +2546,7 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd, } /* - * Sysfs register/status dump. + * Sysfs status dump. * * @dev Pointer to the device structure, passed by the kernrel. * @attr Pointer to the device_attribute structure passed by the kernel. @@ -2555,71 +2555,6 @@ static struct scatterlist *mtip_hw_get_scatterlist(struct driver_data *dd, * return value * The size, in bytes, of the data copied into buf. */ -static ssize_t mtip_hw_show_registers(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - u32 group_allocated; - struct driver_data *dd = dev_to_disk(dev)->private_data; - int size = 0; - int n; - - size += sprintf(&buf[size], "Hardware\n--------\n"); - size += sprintf(&buf[size], "S ACTive : [ 0x"); - - for (n = dd->slot_groups-1; n >= 0; n--) - size += sprintf(&buf[size], "%08X ", - readl(dd->port->s_active[n])); - - size += sprintf(&buf[size], "]\n"); - size += sprintf(&buf[size], "Command Issue : [ 0x"); - - for (n = dd->slot_groups-1; n >= 0; n--) - size += sprintf(&buf[size], "%08X ", - readl(dd->port->cmd_issue[n])); - - size += sprintf(&buf[size], "]\n"); - size += sprintf(&buf[size], "Completed : [ 0x"); - - for (n = dd->slot_groups-1; n >= 0; n--) - size += sprintf(&buf[size], "%08X ", - readl(dd->port->completed[n])); - - size += sprintf(&buf[size], "]\n"); - size += sprintf(&buf[size], "PORT IRQ STAT : [ 0x%08X ]\n", - readl(dd->port->mmio + PORT_IRQ_STAT)); - size += sprintf(&buf[size], "HOST IRQ STAT : [ 0x%08X ]\n", - readl(dd->mmio + HOST_IRQ_STAT)); - size += sprintf(&buf[size], "\n"); - - size += sprintf(&buf[size], "Local\n-----\n"); - size += sprintf(&buf[size], "Allocated : [ 0x"); - - for (n = dd->slot_groups-1; n >= 0; n--) { - if (sizeof(long) > sizeof(u32)) - group_allocated = - dd->port->allocated[n/2] >> (32*(n&1)); - else - group_allocated = dd->port->allocated[n]; - size += sprintf(&buf[size], "%08X ", group_allocated); - } - size += sprintf(&buf[size], "]\n"); - - size += sprintf(&buf[size], "Commands in Q: [ 0x"); - - for (n = dd->slot_groups-1; n >= 0; n--) { - if (sizeof(long) > sizeof(u32)) - group_allocated = - dd->port->cmds_to_issue[n/2] >> (32*(n&1)); - else - group_allocated = dd->port->cmds_to_issue[n]; - size += sprintf(&buf[size], "%08X ", group_allocated); - } - size += sprintf(&buf[size], "]\n"); - - return size; -} - static ssize_t mtip_hw_show_status(struct device *dev, struct device_attribute *attr, char *buf) @@ -2637,24 +2572,7 @@ static ssize_t mtip_hw_show_status(struct device *dev, return size; } -static ssize_t mtip_hw_show_flags(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - struct driver_data *dd = dev_to_disk(dev)->private_data; - int size = 0; - - size += sprintf(&buf[size], "Flag in port struct : [ %08lX ]\n", - dd->port->flags); - size += sprintf(&buf[size], "Flag in dd struct : [ %08lX ]\n", - dd->dd_flag); - - return size; -} - -static DEVICE_ATTR(registers, S_IRUGO, mtip_hw_show_registers, NULL); static DEVICE_ATTR(status, S_IRUGO, mtip_hw_show_status, NULL); -static DEVICE_ATTR(flags, S_IRUGO, mtip_hw_show_flags, NULL); /* * Create the sysfs related attributes. @@ -2671,15 +2589,9 @@ static int mtip_hw_sysfs_init(struct driver_data *dd, struct kobject *kobj) if (!kobj || !dd) return -EINVAL; - if (sysfs_create_file(kobj, &dev_attr_registers.attr)) - dev_warn(&dd->pdev->dev, - "Error creating 'registers' sysfs entry\n"); if (sysfs_create_file(kobj, &dev_attr_status.attr)) dev_warn(&dd->pdev->dev, "Error creating 'status' sysfs entry\n"); - if (sysfs_create_file(kobj, &dev_attr_flags.attr)) - dev_warn(&dd->pdev->dev, - "Error creating 'flags' sysfs entry\n"); return 0; } @@ -2698,9 +2610,7 @@ static int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj) if (!kobj || !dd) return -EINVAL; - sysfs_remove_file(kobj, &dev_attr_registers.attr); sysfs_remove_file(kobj, &dev_attr_status.attr); - sysfs_remove_file(kobj, &dev_attr_flags.attr); return 0; } -- cgit v1.2.3-59-g8ed1b From 7b421d24eac79800ee68905f732300a291f72f00 Mon Sep 17 00:00:00 2001 From: Asai Thambi S P Date: Mon, 4 Jun 2012 12:44:02 -0700 Subject: mtip32xx: Create debugfs entries for troubleshooting On module load, creates a debugfs parent 'rssd' in debugfs root. Then for each device, create a new node with corresponding disk name. Under the new node, two entries 'registers' and 'flags' are created. NOTE: These entries were removed from sysfs in the previous patch Signed-off-by: Asai Thambi S P Signed-off-by: Jens Axboe --- drivers/block/mtip32xx/mtip32xx.c | 162 +++++++++++++++++++++++++++++++++++++- drivers/block/mtip32xx/mtip32xx.h | 4 + 2 files changed, 165 insertions(+), 1 deletion(-) diff --git a/drivers/block/mtip32xx/mtip32xx.c b/drivers/block/mtip32xx/mtip32xx.c index b6e95b911b8c..a8fddeb3d638 100644 --- a/drivers/block/mtip32xx/mtip32xx.c +++ b/drivers/block/mtip32xx/mtip32xx.c @@ -37,6 +37,7 @@ #include #include <../drivers/ata/ahci.h> #include +#include #include "mtip32xx.h" #define HW_CMD_SLOT_SZ (MTIP_MAX_COMMAND_SLOTS * 32) @@ -85,6 +86,7 @@ static int instance; * allocated in mtip_init(). */ static int mtip_major; +static struct dentry *dfs_parent; static DEFINE_SPINLOCK(rssd_index_lock); static DEFINE_IDA(rssd_index_ida); @@ -2574,6 +2576,120 @@ static ssize_t mtip_hw_show_status(struct device *dev, static DEVICE_ATTR(status, S_IRUGO, mtip_hw_show_status, NULL); +static ssize_t mtip_hw_read_registers(struct file *f, char __user *ubuf, + size_t len, loff_t *offset) +{ + struct driver_data *dd = (struct driver_data *)f->private_data; + char buf[MTIP_DFS_MAX_BUF_SIZE]; + u32 group_allocated; + int size = *offset; + int n; + + if (!len || size) + return 0; + + if (size < 0) + return -EINVAL; + + size += sprintf(&buf[size], "H/ S ACTive : [ 0x"); + + for (n = dd->slot_groups-1; n >= 0; n--) + size += sprintf(&buf[size], "%08X ", + readl(dd->port->s_active[n])); + + size += sprintf(&buf[size], "]\n"); + size += sprintf(&buf[size], "H/ Command Issue : [ 0x"); + + for (n = dd->slot_groups-1; n >= 0; n--) + size += sprintf(&buf[size], "%08X ", + readl(dd->port->cmd_issue[n])); + + size += sprintf(&buf[size], "]\n"); + size += sprintf(&buf[size], "H/ Completed : [ 0x"); + + for (n = dd->slot_groups-1; n >= 0; n--) + size += sprintf(&buf[size], "%08X ", + readl(dd->port->completed[n])); + + size += sprintf(&buf[size], "]\n"); + size += sprintf(&buf[size], "H/ PORT IRQ STAT : [ 0x%08X ]\n", + readl(dd->port->mmio + PORT_IRQ_STAT)); + size += sprintf(&buf[size], "H/ HOST IRQ STAT : [ 0x%08X ]\n", + readl(dd->mmio + HOST_IRQ_STAT)); + size += sprintf(&buf[size], "\n"); + + size += sprintf(&buf[size], "L/ Allocated : [ 0x"); + + for (n = dd->slot_groups-1; n >= 0; n--) { + if (sizeof(long) > sizeof(u32)) + group_allocated = + dd->port->allocated[n/2] >> (32*(n&1)); + else + group_allocated = dd->port->allocated[n]; + size += sprintf(&buf[size], "%08X ", group_allocated); + } + size += sprintf(&buf[size], "]\n"); + + size += sprintf(&buf[size], "L/ Commands in Q : [ 0x"); + + for (n = dd->slot_groups-1; n >= 0; n--) { + if (sizeof(long) > sizeof(u32)) + group_allocated = + dd->port->cmds_to_issue[n/2] >> (32*(n&1)); + else + group_allocated = dd->port->cmds_to_issue[n]; + size += sprintf(&buf[size], "%08X ", group_allocated); + } + size += sprintf(&buf[size], "]\n"); + + *offset = size <= len ? size : len; + size = copy_to_user(ubuf, buf, *offset); + if (size) + return -EFAULT; + + return *offset; +} + +static ssize_t mtip_hw_read_flags(struct file *f, char __user *ubuf, + size_t len, loff_t *offset) +{ + struct driver_data *dd = (struct driver_data *)f->private_data; + char buf[MTIP_DFS_MAX_BUF_SIZE]; + int size = *offset; + + if (!len || size) + return 0; + + if (size < 0) + return -EINVAL; + + size += sprintf(&buf[size], "Flag-port : [ %08lX ]\n", + dd->port->flags); + size += sprintf(&buf[size], "Flag-dd : [ %08lX ]\n", + dd->dd_flag); + + *offset = size <= len ? size : len; + size = copy_to_user(ubuf, buf, *offset); + if (size) + return -EFAULT; + + return *offset; +} + +static const struct file_operations mtip_regs_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .read = mtip_hw_read_registers, + .llseek = no_llseek, +}; + +static const struct file_operations mtip_flags_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .read = mtip_hw_read_flags, + .llseek = no_llseek, +}; + /* * Create the sysfs related attributes. * @@ -2615,6 +2731,34 @@ static int mtip_hw_sysfs_exit(struct driver_data *dd, struct kobject *kobj) return 0; } +static int mtip_hw_debugfs_init(struct driver_data *dd) +{ + if (!dfs_parent) + return -1; + + dd->dfs_node = debugfs_create_dir(dd->disk->disk_name, dfs_parent); + if (IS_ERR_OR_NULL(dd->dfs_node)) { + dev_warn(&dd->pdev->dev, + "Error creating node %s under debugfs\n", + dd->disk->disk_name); + dd->dfs_node = NULL; + return -1; + } + + debugfs_create_file("flags", S_IRUGO, dd->dfs_node, dd, + &mtip_flags_fops); + debugfs_create_file("registers", S_IRUGO, dd->dfs_node, dd, + &mtip_regs_fops); + + return 0; +} + +static void mtip_hw_debugfs_exit(struct driver_data *dd) +{ + debugfs_remove_recursive(dd->dfs_node); +} + + /* * Perform any init/resume time hardware setup * @@ -3640,6 +3784,7 @@ skip_create_disk: mtip_hw_sysfs_init(dd, kobj); kobject_put(kobj); } + mtip_hw_debugfs_init(dd); if (dd->mtip_svc_handler) { set_bit(MTIP_DDF_INIT_DONE_BIT, &dd->dd_flag); @@ -3665,6 +3810,8 @@ start_service_thread: return rv; kthread_run_error: + mtip_hw_debugfs_exit(dd); + /* Delete our gendisk. This also removes the device from /dev */ del_gendisk(dd->disk); @@ -3715,6 +3862,7 @@ static int mtip_block_remove(struct driver_data *dd) kobject_put(kobj); } } + mtip_hw_debugfs_exit(dd); /* * Delete our gendisk structure. This also removes the device @@ -4062,10 +4210,20 @@ static int __init mtip_init(void) } mtip_major = error; + if (!dfs_parent) { + dfs_parent = debugfs_create_dir("rssd", NULL); + if (IS_ERR_OR_NULL(dfs_parent)) { + printk(KERN_WARNING "Error creating debugfs parent\n"); + dfs_parent = NULL; + } + } + /* Register our PCI operations. */ error = pci_register_driver(&mtip_pci_driver); - if (error) + if (error) { + debugfs_remove(dfs_parent); unregister_blkdev(mtip_major, MTIP_DRV_NAME); + } return error; } @@ -4082,6 +4240,8 @@ static int __init mtip_init(void) */ static void __exit mtip_exit(void) { + debugfs_remove_recursive(dfs_parent); + /* Release the allocated major block device number. */ unregister_blkdev(mtip_major, MTIP_DRV_NAME); diff --git a/drivers/block/mtip32xx/mtip32xx.h b/drivers/block/mtip32xx/mtip32xx.h index adb1aae3b752..f51fc23d17bb 100644 --- a/drivers/block/mtip32xx/mtip32xx.h +++ b/drivers/block/mtip32xx/mtip32xx.h @@ -110,6 +110,8 @@ #define dbg_printk(format, arg...) #endif +#define MTIP_DFS_MAX_BUF_SIZE 1024 + #define __force_bit2int (unsigned int __force) enum { @@ -446,6 +448,8 @@ struct driver_data { unsigned long dd_flag; /* NOTE: use atomic bit operations on this */ struct task_struct *mtip_svc_handler; /* task_struct of svc thd */ + + struct dentry *dfs_node; }; #endif -- cgit v1.2.3-59-g8ed1b From 18847b42f8d157201550015296a222a9009a04da Mon Sep 17 00:00:00 2001 From: Javier Martin Date: Fri, 1 Jun 2012 09:45:33 +0200 Subject: ARM i.MX27 Visstrim M10: fix gpio handling. Some GPIOs in Visstrim M10 are used without being registered. This leads to USB and video malfunctions. This patch registers those GPIOs to solve the issue. Signed-off-by: Javier Martin Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/mach-imx27_visstrim_m10.c | 36 ++++++++++++++++++++--------- 1 file changed, 25 insertions(+), 11 deletions(-) diff --git a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c index f7b074f496f0..2c6a783d4c04 100644 --- a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c +++ b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c @@ -107,6 +107,8 @@ static const int visstrim_m10_pins[] __initconst = { PB23_PF_USB_PWR, PB24_PF_USB_OC, /* CSI */ + TVP5150_RSTN | GPIO_GPIO | GPIO_OUT, + TVP5150_PWDN | GPIO_GPIO | GPIO_OUT, PB10_PF_CSI_D0, PB11_PF_CSI_D1, PB12_PF_CSI_D2, @@ -121,6 +123,24 @@ static const int visstrim_m10_pins[] __initconst = { PB21_PF_CSI_HSYNC, }; +static const struct gpio visstrim_m10_gpios[] __initconst = { + { + .gpio = TVP5150_RSTN, + .flags = GPIOF_DIR_OUT | GPIOF_INIT_HIGH, + .label = "tvp5150_rstn", + }, + { + .gpio = TVP5150_PWDN, + .flags = GPIOF_DIR_OUT | GPIOF_INIT_LOW, + .label = "tvp5150_pwdn", + }, + { + .gpio = OTG_PHY_CS_GPIO, + .flags = GPIOF_DIR_OUT | GPIOF_INIT_LOW, + .label = "usbotg_cs", + }, +}; + /* Camera */ static int visstrim_camera_power(struct device *dev, int on) { @@ -164,13 +184,6 @@ static void __init visstrim_camera_init(void) struct platform_device *pdev; int dma; - /* Initialize tvp5150 gpios */ - mxc_gpio_mode(TVP5150_RSTN | GPIO_GPIO | GPIO_OUT); - mxc_gpio_mode(TVP5150_PWDN | GPIO_GPIO | GPIO_OUT); - gpio_set_value(TVP5150_RSTN, 1); - gpio_set_value(TVP5150_PWDN, 0); - ndelay(1); - gpio_set_value(TVP5150_PWDN, 1); ndelay(1); gpio_set_value(TVP5150_RSTN, 0); @@ -351,10 +364,6 @@ static struct i2c_board_info visstrim_m10_i2c_devices[] = { /* USB OTG */ static int otg_phy_init(struct platform_device *pdev) { - gpio_set_value(OTG_PHY_CS_GPIO, 0); - - mdelay(10); - return mx27_initialize_usb_hw(pdev->id, MXC_EHCI_POWER_PINS_ENABLED); } @@ -380,6 +389,11 @@ static void __init visstrim_m10_board_init(void) if (ret) pr_err("Failed to setup pins (%d)\n", ret); + ret = gpio_request_array(visstrim_m10_gpios, + ARRAY_SIZE(visstrim_m10_gpios)); + if (ret) + pr_err("Failed to request gpios (%d)\n", ret); + imx27_add_imx_ssi(0, &visstrim_m10_ssi_pdata); imx27_add_imx_uart0(&uart_pdata); -- cgit v1.2.3-59-g8ed1b From 51ce29196dee3084387aa4448d75edc282a91685 Mon Sep 17 00:00:00 2001 From: Haojian Zhuang Date: Tue, 5 Jun 2012 16:42:38 +0800 Subject: ARM: dts: update memory size on brownstone The memory size on brownstone should be 128MB, not 64MB. Signed-off-by: Haojian Zhuang --- arch/arm/boot/dts/mmp2-brownstone.dts | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/boot/dts/mmp2-brownstone.dts b/arch/arm/boot/dts/mmp2-brownstone.dts index 153a4b2d12b5..c9b4f27d191e 100644 --- a/arch/arm/boot/dts/mmp2-brownstone.dts +++ b/arch/arm/boot/dts/mmp2-brownstone.dts @@ -11,7 +11,7 @@ /include/ "mmp2.dtsi" / { - model = "Marvell MMP2 Aspenite Development Board"; + model = "Marvell MMP2 Brownstone Development Board"; compatible = "mrvl,mmp2-brownstone", "mrvl,mmp2"; chosen { @@ -19,7 +19,7 @@ }; memory { - reg = <0x00000000 0x04000000>; + reg = <0x00000000 0x08000000>; }; soc { -- cgit v1.2.3-59-g8ed1b From 10bd21c0547ba2834374ccdddbc6a984eeed432c Mon Sep 17 00:00:00 2001 From: Haojian Zhuang Date: Tue, 5 Jun 2012 17:42:23 +0800 Subject: ARM: mmp: fix missing cascade_irq in irq handler While supporting board in non-DT mode, icu_data[i]->cascade_irq isn't assigned with correct value. Signed-off-by: Haojian Zhuang --- arch/arm/mach-mmp/irq.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/mach-mmp/irq.c b/arch/arm/mach-mmp/irq.c index fcfe0e3bd701..e60c7d98922b 100644 --- a/arch/arm/mach-mmp/irq.c +++ b/arch/arm/mach-mmp/irq.c @@ -241,6 +241,7 @@ void __init mmp2_init_icu(void) icu_data[1].clr_mfp_irq_base = IRQ_MMP2_PMIC_BASE; icu_data[1].clr_mfp_hwirq = IRQ_MMP2_PMIC - IRQ_MMP2_PMIC_BASE; icu_data[1].nr_irqs = 2; + icu_data[1].cascade_irq = 4; icu_data[1].virq_base = IRQ_MMP2_PMIC_BASE; icu_data[1].domain = irq_domain_add_legacy(NULL, icu_data[1].nr_irqs, icu_data[1].virq_base, 0, @@ -249,6 +250,7 @@ void __init mmp2_init_icu(void) icu_data[2].reg_status = mmp_icu_base + 0x154; icu_data[2].reg_mask = mmp_icu_base + 0x16c; icu_data[2].nr_irqs = 2; + icu_data[2].cascade_irq = 5; icu_data[2].virq_base = IRQ_MMP2_RTC_BASE; icu_data[2].domain = irq_domain_add_legacy(NULL, icu_data[2].nr_irqs, icu_data[2].virq_base, 0, @@ -257,6 +259,7 @@ void __init mmp2_init_icu(void) icu_data[3].reg_status = mmp_icu_base + 0x180; icu_data[3].reg_mask = mmp_icu_base + 0x17c; icu_data[3].nr_irqs = 3; + icu_data[3].cascade_irq = 9; icu_data[3].virq_base = IRQ_MMP2_KEYPAD_BASE; icu_data[3].domain = irq_domain_add_legacy(NULL, icu_data[3].nr_irqs, icu_data[3].virq_base, 0, @@ -265,6 +268,7 @@ void __init mmp2_init_icu(void) icu_data[4].reg_status = mmp_icu_base + 0x158; icu_data[4].reg_mask = mmp_icu_base + 0x170; icu_data[4].nr_irqs = 5; + icu_data[4].cascade_irq = 17; icu_data[4].virq_base = IRQ_MMP2_TWSI_BASE; icu_data[4].domain = irq_domain_add_legacy(NULL, icu_data[4].nr_irqs, icu_data[4].virq_base, 0, @@ -273,6 +277,7 @@ void __init mmp2_init_icu(void) icu_data[5].reg_status = mmp_icu_base + 0x15c; icu_data[5].reg_mask = mmp_icu_base + 0x174; icu_data[5].nr_irqs = 15; + icu_data[5].cascade_irq = 35; icu_data[5].virq_base = IRQ_MMP2_MISC_BASE; icu_data[5].domain = irq_domain_add_legacy(NULL, icu_data[5].nr_irqs, icu_data[5].virq_base, 0, @@ -281,6 +286,7 @@ void __init mmp2_init_icu(void) icu_data[6].reg_status = mmp_icu_base + 0x160; icu_data[6].reg_mask = mmp_icu_base + 0x178; icu_data[6].nr_irqs = 2; + icu_data[6].cascade_irq = 51; icu_data[6].virq_base = IRQ_MMP2_MIPI_HSI1_BASE; icu_data[6].domain = irq_domain_add_legacy(NULL, icu_data[6].nr_irqs, icu_data[6].virq_base, 0, @@ -289,6 +295,7 @@ void __init mmp2_init_icu(void) icu_data[7].reg_status = mmp_icu_base + 0x188; icu_data[7].reg_mask = mmp_icu_base + 0x184; icu_data[7].nr_irqs = 2; + icu_data[7].cascade_irq = 55; icu_data[7].virq_base = IRQ_MMP2_MIPI_HSI0_BASE; icu_data[7].domain = irq_domain_add_legacy(NULL, icu_data[7].nr_irqs, icu_data[7].virq_base, 0, -- cgit v1.2.3-59-g8ed1b From 91930652a23de0873a157aa1d9962cb878d64451 Mon Sep 17 00:00:00 2001 From: "Govindraj.R" Date: Tue, 5 Jun 2012 04:04:11 -0700 Subject: OMAP2+: UART: Add mechanism to probe uart pins and configure rx wakeup The commit (bce492c0 ARM: OMAP2+: UART: Fix incorrect population of default uart pads) removed default uart pads that where getting populated and which was making rx pin wakeup capable. If uart pads were used in different mode by any other module then it would fail since the default pads took over all the uart pins forcefully. With removal of default pads the rx_pad wakeup for console uart while waking up from off mode is broken. Utilise the mux api available to probe the availability of mux pins in uart mode and probe for availability of uart pin in mux mode0 if uart is available as uart pin itself then configure rx pin as wakeup capable. This patch itself doesn't cater to all boards. Boards using uart rx wakeup mechanism should ensure the usage of omap_serial_init_port by configuring required uart ports and pass necessary mux data, till then this probing of uart pins can cater to enabling of rx pad wakeup to most of the boards. This patch can also throw some boot warning from _omap_mux_get_by_name if pin is requested for availability is not present while dynamically probing the uart pins availability such boot warnings can be addressed only when board files are patched with omap_serial_init_port calls passing the right pads needed for a given port. Discussion Threads for reference: http://www.spinics.net/lists/linux-omap/msg69859.html http://www.spinics.net/lists/linux-omap/msg68659.html Cc: Felipe Balbi Cc: Kevin Hilman Cc: Russ Dill Cc: Paul Walmsley Cc: Ameya Palande Signed-off-by: Govindraj.R [tony@atomide.com: updated to fix compile when CONFIG_OMAP_MUX is not set] Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/mux.c | 3 +- arch/arm/mach-omap2/mux.h | 11 ++++++++ arch/arm/mach-omap2/serial.c | 67 +++++++++++++++++++++++++++++++++++++++++--- 3 files changed, 75 insertions(+), 6 deletions(-) diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c index 80e55c5c9998..4b46b91cca5c 100644 --- a/arch/arm/mach-omap2/mux.c +++ b/arch/arm/mach-omap2/mux.c @@ -217,8 +217,7 @@ static int __init _omap_mux_get_by_name(struct omap_mux_partition *partition, return -ENODEV; } -static int __init -omap_mux_get_by_name(const char *muxname, +int __init omap_mux_get_by_name(const char *muxname, struct omap_mux_partition **found_partition, struct omap_mux **found_mux) { diff --git a/arch/arm/mach-omap2/mux.h b/arch/arm/mach-omap2/mux.h index 69fe060a0b75..471e62a74a16 100644 --- a/arch/arm/mach-omap2/mux.h +++ b/arch/arm/mach-omap2/mux.h @@ -59,6 +59,7 @@ #define OMAP_PIN_OFF_WAKEUPENABLE OMAP_WAKEUP_EN #define OMAP_MODE_GPIO(x) (((x) & OMAP_MUX_MODE7) == OMAP_MUX_MODE4) +#define OMAP_MODE_UART(x) (((x) & OMAP_MUX_MODE7) == OMAP_MUX_MODE0) /* Flags for omapX_mux_init */ #define OMAP_PACKAGE_MASK 0xffff @@ -225,8 +226,18 @@ omap_hwmod_mux_init(struct omap_device_pad *bpads, int nr_pads); */ void omap_hwmod_mux(struct omap_hwmod_mux_info *hmux, u8 state); +int omap_mux_get_by_name(const char *muxname, + struct omap_mux_partition **found_partition, + struct omap_mux **found_mux); #else +static inline int omap_mux_get_by_name(const char *muxname, + struct omap_mux_partition **found_partition, + struct omap_mux **found_mux) +{ + return 0; +} + static inline int omap_mux_init_gpio(int gpio, int val) { return 0; diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c index 292d4aaca068..c1b93c752d70 100644 --- a/arch/arm/mach-omap2/serial.c +++ b/arch/arm/mach-omap2/serial.c @@ -57,6 +57,7 @@ struct omap_uart_state { struct list_head node; struct omap_hwmod *oh; + struct omap_device_pad default_omap_uart_pads[2]; }; static LIST_HEAD(uart_list); @@ -126,11 +127,70 @@ static void omap_uart_set_smartidle(struct platform_device *pdev) {} #endif /* CONFIG_PM */ #ifdef CONFIG_OMAP_MUX -static void omap_serial_fill_default_pads(struct omap_board_data *bdata) + +#define OMAP_UART_DEFAULT_PAD_NAME_LEN 28 +static char rx_pad_name[OMAP_UART_DEFAULT_PAD_NAME_LEN], + tx_pad_name[OMAP_UART_DEFAULT_PAD_NAME_LEN] __initdata; + +static void __init +omap_serial_fill_uart_tx_rx_pads(struct omap_board_data *bdata, + struct omap_uart_state *uart) +{ + uart->default_omap_uart_pads[0].name = rx_pad_name; + uart->default_omap_uart_pads[0].flags = OMAP_DEVICE_PAD_REMUX | + OMAP_DEVICE_PAD_WAKEUP; + uart->default_omap_uart_pads[0].enable = OMAP_PIN_INPUT | + OMAP_MUX_MODE0; + uart->default_omap_uart_pads[0].idle = OMAP_PIN_INPUT | OMAP_MUX_MODE0; + uart->default_omap_uart_pads[1].name = tx_pad_name; + uart->default_omap_uart_pads[1].enable = OMAP_PIN_OUTPUT | + OMAP_MUX_MODE0; + bdata->pads = uart->default_omap_uart_pads; + bdata->pads_cnt = ARRAY_SIZE(uart->default_omap_uart_pads); +} + +static void __init omap_serial_check_wakeup(struct omap_board_data *bdata, + struct omap_uart_state *uart) { + struct omap_mux_partition *tx_partition = NULL, *rx_partition = NULL; + struct omap_mux *rx_mux = NULL, *tx_mux = NULL; + char *rx_fmt, *tx_fmt; + int uart_nr = bdata->id + 1; + + if (bdata->id != 2) { + rx_fmt = "uart%d_rx.uart%d_rx"; + tx_fmt = "uart%d_tx.uart%d_tx"; + } else { + rx_fmt = "uart%d_rx_irrx.uart%d_rx_irrx"; + tx_fmt = "uart%d_tx_irtx.uart%d_tx_irtx"; + } + + snprintf(rx_pad_name, OMAP_UART_DEFAULT_PAD_NAME_LEN, rx_fmt, + uart_nr, uart_nr); + snprintf(tx_pad_name, OMAP_UART_DEFAULT_PAD_NAME_LEN, tx_fmt, + uart_nr, uart_nr); + + if (omap_mux_get_by_name(rx_pad_name, &rx_partition, &rx_mux) >= 0 && + omap_mux_get_by_name + (tx_pad_name, &tx_partition, &tx_mux) >= 0) { + u16 tx_mode, rx_mode; + + tx_mode = omap_mux_read(tx_partition, tx_mux->reg_offset); + rx_mode = omap_mux_read(rx_partition, rx_mux->reg_offset); + + /* + * Check if uart is used in default tx/rx mode i.e. in mux mode0 + * if yes then configure rx pin for wake up capability + */ + if (OMAP_MODE_UART(rx_mode) && OMAP_MODE_UART(tx_mode)) + omap_serial_fill_uart_tx_rx_pads(bdata, uart); + } } #else -static void omap_serial_fill_default_pads(struct omap_board_data *bdata) {} +static void __init omap_serial_check_wakeup(struct omap_board_data *bdata, + struct omap_uart_state *uart) +{ +} #endif static char *cmdline_find_option(char *str) @@ -287,8 +347,7 @@ void __init omap_serial_board_init(struct omap_uart_port_info *info) bdata.pads = NULL; bdata.pads_cnt = 0; - if (cpu_is_omap44xx() || cpu_is_omap34xx()) - omap_serial_fill_default_pads(&bdata); + omap_serial_check_wakeup(&bdata, uart); if (!info) omap_serial_init_port(&bdata, NULL); -- cgit v1.2.3-59-g8ed1b From 27e1f9d1cc87be4e53c6eb7158cafc21c4b85a14 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 5 Jun 2012 13:36:44 +0200 Subject: blkcg: drop local variable @q from blkg_destroy() blkg_destroy() caches @blkg->q in local variable @q. While there are two places which needs @blkg->q, only lockdep_assert_held() used the local variable leading to unused local variable warning if lockdep is configured out. Drop the local variable and just use @blkg->q directly. Signed-off-by: Tejun Heo Reported-by: Rakesh Iyer Signed-off-by: Jens Axboe --- block/blk-cgroup.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c index 4ab7420ba465..e7dee617358e 100644 --- a/block/blk-cgroup.c +++ b/block/blk-cgroup.c @@ -241,10 +241,9 @@ EXPORT_SYMBOL_GPL(blkg_lookup_create); static void blkg_destroy(struct blkcg_gq *blkg) { - struct request_queue *q = blkg->q; struct blkcg *blkcg = blkg->blkcg; - lockdep_assert_held(q->queue_lock); + lockdep_assert_held(blkg->q->queue_lock); lockdep_assert_held(&blkcg->lock); /* Something wrong if we are trying to remove same group twice */ -- cgit v1.2.3-59-g8ed1b From f968cabcb1cd0c253fa25850970e5376f9eef065 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 6 Jun 2012 01:42:20 -0700 Subject: ARM: OMAP: Fix MMC_OMAP build when only MMC_OMAP_HS is selected If CONFIG_MMC_OMAP is not set and CONFIG_MMC_OMAP_HS is set, we can get error: redefinition of `omap242x_init_mmc' error. Fix it by removing MMC_OMAP_HS from MMC_OMAP ifdefs as they do not depend on each other. While at it, also prettify the formatting a bit. Signed-off-by: Tony Lindgren --- arch/arm/plat-omap/include/plat/mmc.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h index a7754a886d42..5493bd95da5e 100644 --- a/arch/arm/plat-omap/include/plat/mmc.h +++ b/arch/arm/plat-omap/include/plat/mmc.h @@ -172,8 +172,7 @@ struct omap_mmc_platform_data { extern void omap_mmc_notify_cover_event(struct device *dev, int slot, int is_closed); -#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) || \ - defined(CONFIG_MMC_OMAP_HS) || defined(CONFIG_MMC_OMAP_HS_MODULE) +#if defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE) void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data, int nr_controllers); void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data); @@ -185,7 +184,6 @@ static inline void omap1_init_mmc(struct omap_mmc_platform_data **mmc_data, static inline void omap242x_init_mmc(struct omap_mmc_platform_data **mmc_data) { } - #endif extern int omap_msdi_reset(struct omap_hwmod *oh); -- cgit v1.2.3-59-g8ed1b From 00d6bfaf20e723e3f4c9aa6bc0fb6636785a0701 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 6 Jun 2012 01:42:20 -0700 Subject: ARM: OMAP3: Fix omap3_l3_block_irq warning when CONFIG_BUG is not set MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Otherwise we will get: arch/arm/mach-omap2/omap_l3_smx.c: In function ‘omap3_l3_block_irq’: arch/arm/mach-omap2/omap_l3_smx.c:156: warning: unused variable ‘address’ arch/arm/mach-omap2/omap_l3_smx.c:155: warning: unused variable ‘multi’ arch/arm/mach-omap2/omap_l3_smx.c:154: warning: unused variable ‘initid’ arch/arm/mach-omap2/omap_l3_smx.c:153: warning: unused variable ‘code’ arch/arm/mach-omap2/omap_l3_smx.c: At top level: arch/arm/mach-omap2/omap_l3_smx.c:68: warning: ‘omap3_l3_code_string’ defined but not used arch/arm/mach-omap2/omap_l3_smx.c:90: warning: ‘omap3_l3_initiator_string’ defined but not used Fix it by always showing the L3 error. Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/omap_l3_smx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/omap_l3_smx.c b/arch/arm/mach-omap2/omap_l3_smx.c index a05a62f9ee5b..acc216491b8a 100644 --- a/arch/arm/mach-omap2/omap_l3_smx.c +++ b/arch/arm/mach-omap2/omap_l3_smx.c @@ -155,10 +155,11 @@ static irqreturn_t omap3_l3_block_irq(struct omap3_l3 *l3, u8 multi = error & L3_ERROR_LOG_MULTI; u32 address = omap3_l3_decode_addr(error_addr); - WARN(true, "%s seen by %s %s at address %x\n", + pr_err("%s seen by %s %s at address %x\n", omap3_l3_code_string(code), omap3_l3_initiator_string(initid), multi ? "Multiple Errors" : "", address); + WARN_ON(1); return IRQ_HANDLED; } -- cgit v1.2.3-59-g8ed1b From febe9e02d63ed8a42e7e9c75ea16117821f90f07 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 6 Jun 2012 01:42:20 -0700 Subject: ARM: OMAP2+: Fix compile for CONFIG_TIDSPBRIDGE platform init code Commit 7f28427b (ARM: OMAP2+: Move omap_dsp_reserve_sdram_memblock() to mach-omap2) moved DSP platform init code, but failed to include memblock.h causing: arch/arm/mach-omap2/dsp.c: In function 'omap_dsp_reserve_sdram_memblock': arch/arm/mach-omap2/dsp.c:58: error: implicit declaration of function 'arm_memblock_steal' Reported-by: Russell King Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/dsp.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/mach-omap2/dsp.c b/arch/arm/mach-omap2/dsp.c index 845309f146fe..88ffa1e645cd 100644 --- a/arch/arm/mach-omap2/dsp.c +++ b/arch/arm/mach-omap2/dsp.c @@ -20,6 +20,9 @@ #include #include + +#include + #include "cm2xxx_3xxx.h" #include "prm2xxx_3xxx.h" #ifdef CONFIG_BRIDGE_DVFS -- cgit v1.2.3-59-g8ed1b From 09eeff52bf20d485bcafc441f01c142c59c3da16 Mon Sep 17 00:00:00 2001 From: Chris Ball Date: Fri, 1 Jun 2012 10:39:45 -0400 Subject: mmc: sdhci: Use DBG() instead of pr_warning() on large timeout 3bdc9ba892d6 ("mmc: use really long write timeout to deal with crappy cards") in 3.4 increased the write timeout that the core sends to host drivers to 3 seconds. This makes sdhci's "requested timeout too large" warning trigger on every write; so, change this pr_warning() to a DBG(). Reported-by: Adrian Hunter Signed-off-by: Chris Ball --- drivers/mmc/host/sdhci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c index e626732aff77..f4b8b4db3a9a 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -680,8 +680,8 @@ static u8 sdhci_calc_timeout(struct sdhci_host *host, struct mmc_command *cmd) } if (count >= 0xF) { - pr_warning("%s: Too large timeout 0x%x requested for CMD%d!\n", - mmc_hostname(host->mmc), count, cmd->opcode); + DBG("%s: Too large timeout 0x%x requested for CMD%d!\n", + mmc_hostname(host->mmc), count, cmd->opcode); count = 0xE; } -- cgit v1.2.3-59-g8ed1b From b87cc1b5d3a96ef9f1b3a4f8ce7aaff18e96c994 Mon Sep 17 00:00:00 2001 From: Ludovic Desroches Date: Wed, 23 May 2012 15:52:15 +0200 Subject: mmc: atmel-mci: fix data timeout issue The data timeout timer was configured after mmc_add_host call. So, with bad timings, it was possible to have a mmc request causing mod_timer call on a non setup timer. Signed-off-by: Ludovic Desroches Signed-off-by: Chris Ball --- drivers/mmc/host/atmel-mci.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index 420aca642b14..456c077455cb 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -2314,6 +2314,8 @@ static int __init atmci_probe(struct platform_device *pdev) platform_set_drvdata(pdev, host); + setup_timer(&host->timer, atmci_timeout_timer, (unsigned long)host); + /* We need at least one slot to succeed */ nr_slots = 0; ret = -ENODEV; @@ -2352,8 +2354,6 @@ static int __init atmci_probe(struct platform_device *pdev) } } - setup_timer(&host->timer, atmci_timeout_timer, (unsigned long)host); - dev_info(&pdev->dev, "Atmel MCI controller at 0x%08lx irq %d, %u slots\n", host->mapbase, irq, nr_slots); -- cgit v1.2.3-59-g8ed1b From 693e5e2025278d90e1427f037e5ec8ea1ec7d5c4 Mon Sep 17 00:00:00 2001 From: Nicolas Ferre Date: Wed, 6 Jun 2012 12:19:44 +0200 Subject: mmc: atmel-mci: fix burst/chunk size modification The use of DMA slave config operation requires that the burst size (aka chunk size) is specified through this interface. Modify atmel-mci slave driver to use this specification on its side. Signed-off-by: Nicolas Ferre Signed-off-by: Ludovic Desroches Signed-off-by: Chris Ball --- drivers/mmc/host/atmel-mci-regs.h | 14 ++++++++++++++ drivers/mmc/host/atmel-mci.c | 8 +++++--- 2 files changed, 19 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/host/atmel-mci-regs.h b/drivers/mmc/host/atmel-mci-regs.h index 787aba1682bb..ab56f7db5315 100644 --- a/drivers/mmc/host/atmel-mci-regs.h +++ b/drivers/mmc/host/atmel-mci-regs.h @@ -140,4 +140,18 @@ #define atmci_writel(port,reg,value) \ __raw_writel((value), (port)->regs + reg) +/* + * Fix sconfig's burst size according to atmel MCI. We need to convert them as: + * 1 -> 0, 4 -> 1, 8 -> 2, 16 -> 3. + * + * This can be done by finding most significant bit set. + */ +static inline unsigned int atmci_convert_chksize(unsigned int maxburst) +{ + if (maxburst > 1) + return fls(maxburst) - 2; + else + return 0; +} + #endif /* __DRIVERS_MMC_ATMEL_MCI_H__ */ diff --git a/drivers/mmc/host/atmel-mci.c b/drivers/mmc/host/atmel-mci.c index 456c077455cb..f2c115e06438 100644 --- a/drivers/mmc/host/atmel-mci.c +++ b/drivers/mmc/host/atmel-mci.c @@ -910,6 +910,7 @@ atmci_prepare_data_dma(struct atmel_mci *host, struct mmc_data *data) enum dma_data_direction direction; enum dma_transfer_direction slave_dirn; unsigned int sglen; + u32 maxburst; u32 iflags; data->error = -EINPROGRESS; @@ -943,17 +944,18 @@ atmci_prepare_data_dma(struct atmel_mci *host, struct mmc_data *data) if (!chan) return -ENODEV; - if (host->caps.has_dma) - atmci_writel(host, ATMCI_DMA, ATMCI_DMA_CHKSIZE(3) | ATMCI_DMAEN); - if (data->flags & MMC_DATA_READ) { direction = DMA_FROM_DEVICE; host->dma_conf.direction = slave_dirn = DMA_DEV_TO_MEM; + maxburst = atmci_convert_chksize(host->dma_conf.src_maxburst); } else { direction = DMA_TO_DEVICE; host->dma_conf.direction = slave_dirn = DMA_MEM_TO_DEV; + maxburst = atmci_convert_chksize(host->dma_conf.dst_maxburst); } + atmci_writel(host, ATMCI_DMA, ATMCI_DMA_CHKSIZE(maxburst) | ATMCI_DMAEN); + sglen = dma_map_sg(chan->device->dev, data->sg, data->sg_len, direction); -- cgit v1.2.3-59-g8ed1b From 2a0fe914a38745f5b03534c4e4f4056cbd6978b8 Mon Sep 17 00:00:00 2001 From: Yong Ding Date: Tue, 15 May 2012 13:09:43 +0800 Subject: mmc: sdio: fix setting card data bus width as 4-bit SDIO_CCCR_IF[1:0] in SDIO card is used for card data bus width setting as below: 00b: 1-bit bus 01b: Reserved 10b: 4-bit bus 11b: 8-bit bus (only for embedded SDIO) And sdio_enable_wide is for setting data bus width as 4-bit. But currently, it first reads the register, second OR' 1b with SDIO_CCCR_IF[1], and then writes it back. As we can see, this is based on such assumption that the SDIO_CCCR_IF[0] is always 0. Apparently, this is not right. Signed-off-by: Yong Ding Acked-by: Philip Rakity Signed-off-by: Chris Ball --- drivers/mmc/core/sdio.c | 6 ++++++ include/linux/mmc/sdio.h | 2 ++ 2 files changed, 8 insertions(+) diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index 13d0e95380ab..41c5fd8848f4 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -218,6 +218,12 @@ static int sdio_enable_wide(struct mmc_card *card) if (ret) return ret; + if ((ctrl & SDIO_BUS_WIDTH_MASK) == SDIO_BUS_WIDTH_RESERVED) + pr_warning("%s: SDIO_CCCR_IF is invalid: 0x%02x\n", + mmc_hostname(card->host), ctrl); + + /* set as 4-bit bus width */ + ctrl &= ~SDIO_BUS_WIDTH_MASK; ctrl |= SDIO_BUS_WIDTH_4BIT; ret = mmc_io_rw_direct(card, 1, 0, SDIO_CCCR_IF, ctrl, NULL); diff --git a/include/linux/mmc/sdio.h b/include/linux/mmc/sdio.h index c9fe66c58f8f..17446d3c3602 100644 --- a/include/linux/mmc/sdio.h +++ b/include/linux/mmc/sdio.h @@ -98,7 +98,9 @@ #define SDIO_CCCR_IF 0x07 /* bus interface controls */ +#define SDIO_BUS_WIDTH_MASK 0x03 /* data bus width setting */ #define SDIO_BUS_WIDTH_1BIT 0x00 +#define SDIO_BUS_WIDTH_RESERVED 0x01 #define SDIO_BUS_WIDTH_4BIT 0x02 #define SDIO_BUS_ECSI 0x20 /* Enable continuous SPI interrupt */ #define SDIO_BUS_SCSI 0x40 /* Support continuous SPI interrupt */ -- cgit v1.2.3-59-g8ed1b From eed6c63cefaf935e6fb28c4dd9977a280ae544a8 Mon Sep 17 00:00:00 2001 From: Seungwon Jeon Date: Sun, 20 May 2012 13:27:21 +0900 Subject: mmc: dw_mmc: fix the transmission handling in IDMAC DTO interrupt can be later than transmit interrupt(IDMAC) in case of write. Current handling of IDMAC interrupt sets EVENT_DATA_COMPLETE as well as EVENT_XFER_COMPLETE regardless of DTO rising. This makes the current request finish in tasklet and permits the next request even though current data transfer is still in progress. As a result, sequence is broken and lock-up happens. Setting EVENT_DATA_COMPLETE is not proper after IDMAC interrupt. It should be taken after DTO interrupt is generated. Reported-by: Dmitry Shmidt Signed-off-by: Seungwon Jeon Signed-off-by: Hyeonsu Kim Acked-by: Will Newton Signed-off-by: Chris Ball --- drivers/mmc/host/dw_mmc.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 9bbf45f8c538..b46faf0cfb27 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -1623,7 +1623,6 @@ static irqreturn_t dw_mci_interrupt(int irq, void *dev_id) if (pending & (SDMMC_IDMAC_INT_TI | SDMMC_IDMAC_INT_RI)) { mci_writel(host, IDSTS, SDMMC_IDMAC_INT_TI | SDMMC_IDMAC_INT_RI); mci_writel(host, IDSTS, SDMMC_IDMAC_INT_NI); - set_bit(EVENT_DATA_COMPLETE, &host->pending_events); host->dma_ops->complete(host); } #endif -- cgit v1.2.3-59-g8ed1b From 141a712a4eb09639dd4973a7c5e6999e3b8ae04a Mon Sep 17 00:00:00 2001 From: Seungwon Jeon Date: Tue, 22 May 2012 13:01:03 +0900 Subject: mmc: dw_mmc: fix the IDMAC sw reset IDMAC may not be cleaned in driver probe if it has been already used in boot time. So IDMAC needs sw reset newly. And DMA interface reset precedes the internal DMAC reset. Additionally SDMMC_IDMAC_SWRESET is replaced with magic code. Signed-off-by: Seungwon Jeon Acked-by: Will Newton Signed-off-by: Chris Ball --- drivers/mmc/host/dw_mmc.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index b46faf0cfb27..98fe02347d59 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -418,6 +418,8 @@ static int dw_mci_idmac_init(struct dw_mci *host) p->des3 = host->sg_dma; p->des0 = IDMAC_DES0_ER; + mci_writel(host, BMOD, SDMMC_IDMAC_SWRESET); + /* Mask out interrupts - get Tx & Rx complete only */ mci_writel(host, IDINTEN, SDMMC_IDMAC_INT_NI | SDMMC_IDMAC_INT_RI | SDMMC_IDMAC_INT_TI); @@ -1724,7 +1726,8 @@ static void dw_mci_work_routine_card(struct work_struct *work) #ifdef CONFIG_MMC_DW_IDMAC ctrl = mci_readl(host, BMOD); - ctrl |= 0x01; /* Software reset of DMA */ + /* Software reset of DMA */ + ctrl |= SDMMC_IDMAC_SWRESET; mci_writel(host, BMOD, ctrl); #endif @@ -1949,10 +1952,6 @@ int dw_mci_probe(struct dw_mci *host) spin_lock_init(&host->lock); INIT_LIST_HEAD(&host->queue); - - host->dma_ops = host->pdata->dma_ops; - dw_mci_init_dma(host); - /* * Get the host data width - this assumes that HCON has been set with * the correct values. @@ -1980,10 +1979,11 @@ int dw_mci_probe(struct dw_mci *host) } /* Reset all blocks */ - if (!mci_wait_reset(&host->dev, host)) { - ret = -ENODEV; - goto err_dmaunmap; - } + if (!mci_wait_reset(&host->dev, host)) + return -ENODEV; + + host->dma_ops = host->pdata->dma_ops; + dw_mci_init_dma(host); /* Clear the interrupts for the host controller */ mci_writel(host, RINTSTS, 0xFFFFFFFF); @@ -2169,14 +2169,14 @@ int dw_mci_resume(struct dw_mci *host) if (host->vmmc) regulator_enable(host->vmmc); - if (host->dma_ops->init) - host->dma_ops->init(host); - if (!mci_wait_reset(&host->dev, host)) { ret = -ENODEV; return ret; } + if (host->dma_ops->init) + host->dma_ops->init(host); + /* Restore the old value at FIFOTH register */ mci_writel(host, FIFOTH, host->fifoth_val); -- cgit v1.2.3-59-g8ed1b From fda5f736864c46324dbc50246ef1ca0e84ebf4ae Mon Sep 17 00:00:00 2001 From: Seungwon Jeon Date: Tue, 22 May 2012 13:01:13 +0900 Subject: mmc: dw_mmc: fix incorrect setting of host->data of NULL Setting host->data to NULL is incorrect sequence in dw_mci_command_complete. This early setting makes the skip of dma_unmap_sg in dw_mci_dma_cleanup. Signed-off-by: Seungwon Jeon Acked-by: Will Newton Signed-off-by: Chris Ball --- drivers/mmc/host/dw_mmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index 98fe02347d59..b070ee542c8e 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -941,8 +941,8 @@ static void dw_mci_command_complete(struct dw_mci *host, struct mmc_command *cmd mdelay(20); if (cmd->data) { - host->data = NULL; dw_mci_stop_dma(host); + host->data = NULL; } } } -- cgit v1.2.3-59-g8ed1b From e419990b5e811027b1552cbc5b76a6cc180f7f48 Mon Sep 17 00:00:00 2001 From: Seungwon Jeon Date: Tue, 22 May 2012 13:01:21 +0900 Subject: mmc: dw_mmc: correct the calculation for CLKDIV In case of "host->bus_hz < slot->clock", divider value is miscalculated. And clock divider register value is multiple of 2. If calculated divider value is odd number, result can be over-clocking. Signed-off-by: Seungwon Jeon Acked-by: Will Newton Signed-off-by: Chris Ball --- drivers/mmc/host/dw_mmc.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c index b070ee542c8e..1ca5e72ceb65 100644 --- a/drivers/mmc/host/dw_mmc.c +++ b/drivers/mmc/host/dw_mmc.c @@ -617,14 +617,15 @@ static void dw_mci_setup_bus(struct dw_mci_slot *slot) u32 div; if (slot->clock != host->current_speed) { - if (host->bus_hz % slot->clock) + div = host->bus_hz / slot->clock; + if (host->bus_hz % slot->clock && host->bus_hz > slot->clock) /* * move the + 1 after the divide to prevent * over-clocking the card. */ - div = ((host->bus_hz / slot->clock) >> 1) + 1; - else - div = (host->bus_hz / slot->clock) >> 1; + div += 1; + + div = (host->bus_hz != slot->clock) ? DIV_ROUND_UP(div, 2) : 0; dev_info(&slot->mmc->class_dev, "Bus speed (slot %d) = %dHz (slot req %dHz, actual %dHZ" -- cgit v1.2.3-59-g8ed1b From 4f837791d90bca76384b665eb2649feab169cc13 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 6 Jun 2012 09:44:09 -0400 Subject: mmc: omap: Fix a section warning regression Commit b6e0703b (mmc: omap: make it behave well as a module) made some __devinit changes but missed one function causing a section warning: WARNING: vmlinux.o(.devinit.text+0x8604): Section mismatch in reference from the function mmc_omap_probe) The function __devinit mmc_omap_probe() references a function __init mmc_omap_new_slot(). Signed-off-by: Tony Lindgren Acked-by: Felipe Balbi Signed-off-by: Chris Ball --- drivers/mmc/host/omap.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c index 552196c764d4..feda3064b2cd 100644 --- a/drivers/mmc/host/omap.c +++ b/drivers/mmc/host/omap.c @@ -1300,7 +1300,7 @@ static const struct mmc_host_ops mmc_omap_ops = { .set_ios = mmc_omap_set_ios, }; -static int __init mmc_omap_new_slot(struct mmc_omap_host *host, int id) +static int __devinit mmc_omap_new_slot(struct mmc_omap_host *host, int id) { struct mmc_omap_slot *slot = NULL; struct mmc_host *mmc; -- cgit v1.2.3-59-g8ed1b From 3caf41406dd67b412abae7df86cc2a09bef9621f Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 6 Jun 2012 09:45:50 -0400 Subject: mmc: omap: Fix NULL pointer dereference if mmc_omap_new_slot() fails Commit b01a4f1c (mmc: omap: convert to per instance workqueue) initializes the workqueue too late causing the following: Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = c0004000 [00000000] *pgd=00000000 Internal error: Oops: 5 [#1] SMP ARM Modules linked in: CPU: 0 Not tainted (3.4.0-08218-gb48b2c3 #158) PC is at __queue_work+0x8/0x46c LR is at queue_work_on+0x38/0x40 pc : [] lr : [] psr: 60000193 sp : c0691e1c ip : 00000000 fp : c07374ac r10: c7aae400 r9 : c0395700 r8 : 00000100 r7 : c0691e70 r6 : 00000000 r5 : 00000000 r4 : c7aae440 r3 : 00000001 r2 : c7aae440 r1 : 00000000 r0 : 00000000 Flags: nZCv IRQs off FIQs on Mode SVC_32 ISA ARM Segment kernel Control: 00c5387d Table: 80004000 DAC: 00000017 Process swapper/0 (pid: 0, stack limit = 0xc06902f8) Stack: (0xc0691e1c to 0xc0692000) Fix this by initializing the workqueue before mmc_omap_remove_slot() get called. Tested on n770, looks like n800 at least still has some other issue with MMC. Signed-off-by: Tony Lindgren Signed-off-by: Chris Ball --- drivers/mmc/host/omap.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c index feda3064b2cd..6b07730598da 100644 --- a/drivers/mmc/host/omap.c +++ b/drivers/mmc/host/omap.c @@ -1485,24 +1485,27 @@ static int __devinit mmc_omap_probe(struct platform_device *pdev) } host->nr_slots = pdata->nr_slots; + + host->mmc_omap_wq = alloc_workqueue("mmc_omap", 0, 0); + if (!host->mmc_omap_wq) + goto err_plat_cleanup; + for (i = 0; i < pdata->nr_slots; i++) { ret = mmc_omap_new_slot(host, i); if (ret < 0) { while (--i >= 0) mmc_omap_remove_slot(host->slots[i]); - goto err_plat_cleanup; + goto err_destroy_wq; } } host->reg_shift = (cpu_is_omap7xx() ? 1 : 2); - host->mmc_omap_wq = alloc_workqueue("mmc_omap", 0, 0); - if (!host->mmc_omap_wq) - goto err_plat_cleanup; - return 0; +err_destroy_wq: + destroy_workqueue(host->mmc_omap_wq); err_plat_cleanup: if (pdata->cleanup) pdata->cleanup(&pdev->dev); -- cgit v1.2.3-59-g8ed1b From ebbe6f889f36d35f4d1757ba2ecc0af6150bf12b Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 6 Jun 2012 09:47:49 -0400 Subject: mmc: omap: Fix broken reg_shift initialization Commit fa550189 (mmc: core: Prevent eMMC VCC supply to be cut from late init) slightly affected timings for how things are done for the omap MMC driver causing the MMC cards not getting detected any longer. Turns out this was caused by buggy reg_shift initialization in the omap MMC driver that was happening after mmc_add_host() was being called. Fix this by initializing reg_shift before mmc_add_host() is called. Signed-off-by: Tony Lindgren Cc: Signed-off-by: Chris Ball --- drivers/mmc/host/omap.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/mmc/host/omap.c b/drivers/mmc/host/omap.c index 6b07730598da..3e8dcf8d2e05 100644 --- a/drivers/mmc/host/omap.c +++ b/drivers/mmc/host/omap.c @@ -1485,6 +1485,7 @@ static int __devinit mmc_omap_probe(struct platform_device *pdev) } host->nr_slots = pdata->nr_slots; + host->reg_shift = (cpu_is_omap7xx() ? 1 : 2); host->mmc_omap_wq = alloc_workqueue("mmc_omap", 0, 0); if (!host->mmc_omap_wq) @@ -1500,8 +1501,6 @@ static int __devinit mmc_omap_probe(struct platform_device *pdev) } } - host->reg_shift = (cpu_is_omap7xx() ? 1 : 2); - return 0; err_destroy_wq: -- cgit v1.2.3-59-g8ed1b From 85e727edb963459d13cdd9ce84c335d251a005a7 Mon Sep 17 00:00:00 2001 From: Jaehoon Chung Date: Thu, 31 May 2012 20:31:47 +0900 Subject: mmc: core: return an error on suspend if mmc_deselect_cards fails When mmc_host is not spi mode, mmc/sd is doing mmc_deselect_cards(). mmc_deselect_cards could be returned error. If returned error, we can know something wrong when enter suspend. Signed-off-by: Jaehoon Chung Signed-off-by: Kyungmin Park Acked-by: Ulf Hansson Signed-off-by: Chris Ball --- drivers/mmc/core/mmc.c | 2 +- drivers/mmc/core/sd.c | 6 ++++-- 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c index 2d4a4b746750..258b203397aa 100644 --- a/drivers/mmc/core/mmc.c +++ b/drivers/mmc/core/mmc.c @@ -1326,7 +1326,7 @@ static int mmc_suspend(struct mmc_host *host) if (!err) mmc_card_set_sleep(host->card); } else if (!mmc_host_is_spi(host)) - mmc_deselect_cards(host); + err = mmc_deselect_cards(host); host->card->state &= ~(MMC_STATE_HIGHSPEED | MMC_STATE_HIGHSPEED_200); mmc_release_host(host); diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c index c272c6868ecf..b2b43f624b9e 100644 --- a/drivers/mmc/core/sd.c +++ b/drivers/mmc/core/sd.c @@ -1075,16 +1075,18 @@ static void mmc_sd_detect(struct mmc_host *host) */ static int mmc_sd_suspend(struct mmc_host *host) { + int err = 0; + BUG_ON(!host); BUG_ON(!host->card); mmc_claim_host(host); if (!mmc_host_is_spi(host)) - mmc_deselect_cards(host); + err = mmc_deselect_cards(host); host->card->state &= ~MMC_STATE_HIGHSPEED; mmc_release_host(host); - return 0; + return err; } /* -- cgit v1.2.3-59-g8ed1b From 81ec1daa118ec9a04c0a907883872ae2996372bd Mon Sep 17 00:00:00 2001 From: Heiko Stübner Date: Sun, 3 Jun 2012 15:29:55 +0200 Subject: mmc: sdhci-s3c: pass IRQF ONESHOT to request threaded irq Fix a boot regression in existing kernels causing: genirq: Threaded irq requested with handler=NULL and !ONESHOT for irq XXX caused by 1c6c6952 (genirq: Reject bogus threaded irq requests). Signed-off-by: Heiko Stuebner Signed-off-by: Chris Ball --- drivers/mmc/host/sdhci-s3c.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c index 55a164fcaa15..a50c205ea208 100644 --- a/drivers/mmc/host/sdhci-s3c.c +++ b/drivers/mmc/host/sdhci-s3c.c @@ -404,7 +404,7 @@ static void sdhci_s3c_setup_card_detect_gpio(struct sdhci_s3c *sc) if (sc->ext_cd_irq && request_threaded_irq(sc->ext_cd_irq, NULL, sdhci_s3c_gpio_card_detect_thread, - IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING | IRQF_ONESHOT, dev_name(dev), sc) == 0) { int status = gpio_get_value(sc->ext_cd_gpio); if (pdata->ext_cd_gpio_invert) -- cgit v1.2.3-59-g8ed1b From a3e545e9ab26892641ecac7cee30ea4b4e87977e Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Mon, 21 May 2012 06:33:27 +0200 Subject: mmc: mxs-mmc: Move of_match_table out of CONFIG_PM Signed-off-by: Marek Vasut Acked-by: Shawn Guo Signed-off-by: Chris Ball --- drivers/mmc/host/mxs-mmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c index 34a90266ab11..277161d279b8 100644 --- a/drivers/mmc/host/mxs-mmc.c +++ b/drivers/mmc/host/mxs-mmc.c @@ -894,8 +894,8 @@ static struct platform_driver mxs_mmc_driver = { .owner = THIS_MODULE, #ifdef CONFIG_PM .pm = &mxs_mmc_pm_ops, - .of_match_table = mxs_mmc_dt_ids, #endif + .of_match_table = mxs_mmc_dt_ids, }, }; -- cgit v1.2.3-59-g8ed1b From 967db0ea65b0bf8507a7643ac8f296c4f2c0a834 Mon Sep 17 00:00:00 2001 From: Salman Qazi Date: Wed, 6 Jun 2012 18:51:35 -0700 Subject: cgroup: make sure that decisions in __css_put are atomic __css_put is using atomic_dec on the ref count, and then looking at the ref count to make decisions. This is prone to races, as someone else may decrement ref count between our decrement and our decision. Instead, we should base our decisions on the value that we decremented the ref count to. (This results in an actual race on Google's kernel which I haven't been able to reproduce on the upstream kernel. Having said that, it's still incorrect by inspection). Signed-off-by: Salman Qazi Acked-by: Li Zefan Signed-off-by: Tejun Heo Cc: stable@vger.kernel.org --- kernel/cgroup.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 72fcd3069a90..ceeafe874b3f 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -4984,8 +4984,7 @@ void __css_put(struct cgroup_subsys_state *css) struct cgroup *cgrp = css->cgroup; rcu_read_lock(); - atomic_dec(&css->refcnt); - switch (css_refcnt(css)) { + switch (atomic_dec_return(&css->refcnt)) { case 1: if (notify_on_release(cgrp)) { set_bit(CGRP_RELEASABLE, &cgrp->flags); -- cgit v1.2.3-59-g8ed1b From 279bf2e57c30c9a4482b2b6ede11b31c41e35e78 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Tue, 5 Jun 2012 18:16:31 +0200 Subject: staging:iio:ad7606: Re-add missing scale attribute Commit 50ac23be ("staging:iio:adc:ad7606 add local define for chan_spec structures.") accidentally removed the scale info_mask flag. This patch adds it back again. Signed-off-by: Lars-Peter Clausen Cc: stable [3.2+] Acked-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/staging/iio/adc/ad7606_core.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c index 10ab6dc823b9..a13afff2dfe6 100644 --- a/drivers/staging/iio/adc/ad7606_core.c +++ b/drivers/staging/iio/adc/ad7606_core.c @@ -235,7 +235,8 @@ static const struct attribute_group ad7606_attribute_group_range = { .indexed = 1, \ .channel = num, \ .address = num, \ - .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT, \ + .info_mask = IIO_CHAN_INFO_RAW_SEPARATE_BIT | \ + IIO_CHAN_INFO_SCALE_SHARED_BIT, \ .scan_index = num, \ .scan_type = IIO_ST('s', 16, 16, 0), \ } -- cgit v1.2.3-59-g8ed1b From 30c1dc0ff30b5552e8af555265dbeac5637cbb48 Mon Sep 17 00:00:00 2001 From: Tushar Behera Date: Wed, 23 May 2012 16:47:31 +0530 Subject: dmaengine: pl330: dont complete descriptor for cyclic dma Commit eab215855803 ("dmaengine: pl330: dont complete descriptor for cyclic dma") wrongly completes descriptor for cyclic dma, hence following BUG_ON is still hit with cyclic DMA operations. kernel BUG at drivers/dma/dmaengine.h:53! Signed-off-by: Tushar Behera Acked-by: Jassi Brar Signed-off-by: Vinod Koul Cc: stable --- drivers/dma/pl330.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index cbcc28e79be6..6d550421da7a 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -2321,7 +2321,7 @@ static void pl330_tasklet(unsigned long data) /* Pick up ripe tomatoes */ list_for_each_entry_safe(desc, _dt, &pch->work_list, node) if (desc->status == DONE) { - if (pch->cyclic) + if (!pch->cyclic) dma_cookie_complete(&desc->txd); list_move_tail(&desc->node, &list); } -- cgit v1.2.3-59-g8ed1b From 8e2e27c7444ba7880aa0a4cb07a79de130d0ed93 Mon Sep 17 00:00:00 2001 From: Richard Zhao Date: Mon, 4 Jun 2012 09:17:24 +0800 Subject: dma: imx-sdma: buf_tail should be initialize in prepare function This fix audio underrun issue. When SNDRV_PCM_TRIGGER_STOP and SNDRV_PCM_TRIGGER_START, it calls prepare again. buf_tail should be reset to zero. So move buf_tail initialization into prepare function. Signed-off-by: Richard Zhao Acked-by: Shawn Guo Signed-off-by: Vinod Koul --- drivers/dma/imx-sdma.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c index fb4f4990f5eb..1dc2a4ad0026 100644 --- a/drivers/dma/imx-sdma.c +++ b/drivers/dma/imx-sdma.c @@ -815,8 +815,6 @@ static int sdma_request_channel(struct sdma_channel *sdmac) init_completion(&sdmac->done); - sdmac->buf_tail = 0; - return 0; out: @@ -927,6 +925,8 @@ static struct dma_async_tx_descriptor *sdma_prep_slave_sg( sdmac->flags = 0; + sdmac->buf_tail = 0; + dev_dbg(sdma->dev, "setting up %d entries for channel %d.\n", sg_len, channel); @@ -1027,6 +1027,8 @@ static struct dma_async_tx_descriptor *sdma_prep_dma_cyclic( sdmac->status = DMA_IN_PROGRESS; + sdmac->buf_tail = 0; + sdmac->flags |= IMX_DMA_SG_LOOP; sdmac->direction = direction; ret = sdma_load_context(sdmac); -- cgit v1.2.3-59-g8ed1b From 5a67ac572e102f7d877b8a3a18a59315186e3e99 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 4 Jun 2012 17:09:45 +0530 Subject: DMA: PL330: Add missing static storage class specifier Fixes the following sparse warning: drivers/dma/pl330.c:2542:5: warning: symbol 'add_desc' was not declared. Should it be static? Signed-off-by: Sachin Kamat Signed-off-by: Vinod Koul --- drivers/dma/pl330.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 6d550421da7a..3ce7d553a746 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -2539,7 +2539,7 @@ static inline void _init_desc(struct dma_pl330_desc *desc) } /* Returns the number of descriptors added to the DMAC pool */ -int add_desc(struct dma_pl330_dmac *pdmac, gfp_t flg, int count) +static int add_desc(struct dma_pl330_dmac *pdmac, gfp_t flg, int count) { struct dma_pl330_desc *desc; unsigned long flags; -- cgit v1.2.3-59-g8ed1b From f2f12b6fc032c7b1419fd6db84e2868b5f05a878 Mon Sep 17 00:00:00 2001 From: Shuah Khan Date: Wed, 6 Jun 2012 10:50:06 -0600 Subject: iommu/amd: Fix missing iommu_shutdown initialization in passthrough mode The iommu_shutdown callback is not initialized when the AMD IOMMU driver runs in passthrough mode. Fix that by moving the callback initialization before the check for passthrough mode. Signed-off-by: Shuah Khan Cc: stable@vger.kernel.org Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu_init.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index 542024ba6dba..c04ddca7f12f 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -1641,6 +1641,8 @@ static int __init amd_iommu_init(void) amd_iommu_init_api(); + x86_platform.iommu_shutdown = disable_iommus; + if (iommu_pass_through) goto out; @@ -1649,8 +1651,6 @@ static int __init amd_iommu_init(void) else printk(KERN_INFO "AMD-Vi: Lazy IO/TLB flushing enabled\n"); - x86_platform.iommu_shutdown = disable_iommus; - out: return ret; -- cgit v1.2.3-59-g8ed1b From aa29cab3f12b14020011bcad28cc11f50725d68f Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sun, 20 May 2012 14:11:24 -0300 Subject: ARM: mx31: Add pinctrl_provide_dummies() commit a2aa65a (ARM: imx: enable pinctrl dummy states) missed to add pinctrl_provide_dummies() for mx31. Signed-off-by: Fabio Estevam Signed-off-by: Shawn Guo --- arch/arm/mach-imx/mm-imx3.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-imx/mm-imx3.c b/arch/arm/mach-imx/mm-imx3.c index 967ed5b35a45..0b211f63981f 100644 --- a/arch/arm/mach-imx/mm-imx3.c +++ b/arch/arm/mach-imx/mm-imx3.c @@ -179,6 +179,8 @@ void __init imx31_soc_init(void) mxc_register_gpio("imx31-gpio", 1, MX31_GPIO2_BASE_ADDR, SZ_16K, MX31_INT_GPIO2, 0); mxc_register_gpio("imx31-gpio", 2, MX31_GPIO3_BASE_ADDR, SZ_16K, MX31_INT_GPIO3, 0); + pinctrl_provide_dummies(); + if (to_version == 1) { strncpy(imx31_sdma_pdata.fw_name, "sdma-imx31-to1.bin", strlen(imx31_sdma_pdata.fw_name)); -- cgit v1.2.3-59-g8ed1b From eb5558dd46dab1e3023f052f99979b0e2bfd1b19 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sun, 20 May 2012 14:21:09 -0300 Subject: ARM: mx51: Add pinctrl_provide_dummies() commit a2aa65a (ARM: imx: enable pinctrl dummy states) missed to add pinctrl_provide_dummies() for mx51. Signed-off-by: Fabio Estevam Signed-off-by: Shawn Guo --- arch/arm/mach-imx/mm-imx5.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-imx/mm-imx5.c b/arch/arm/mach-imx/mm-imx5.c index feeee17da96b..1d003053d562 100644 --- a/arch/arm/mach-imx/mm-imx5.c +++ b/arch/arm/mach-imx/mm-imx5.c @@ -202,6 +202,8 @@ void __init imx51_soc_init(void) mxc_register_gpio("imx31-gpio", 2, MX51_GPIO3_BASE_ADDR, SZ_16K, MX51_INT_GPIO3_LOW, MX51_INT_GPIO3_HIGH); mxc_register_gpio("imx31-gpio", 3, MX51_GPIO4_BASE_ADDR, SZ_16K, MX51_INT_GPIO4_LOW, MX51_INT_GPIO4_HIGH); + pinctrl_provide_dummies(); + /* i.mx51 has the i.mx35 type sdma */ imx_add_imx_sdma("imx35-sdma", MX51_SDMA_BASE_ADDR, MX51_INT_SDMA, &imx51_sdma_pdata); -- cgit v1.2.3-59-g8ed1b From 602bf40971d7f9a1ec0b7ba2b7e6427849828651 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Tue, 22 May 2012 22:13:46 +0800 Subject: ARM: imx6: exit coherency when shutting down a cpu There is a system hang issue on imx6q which can easily be seen with running a cpu hotplug stress testing (hotplug secondary cores from user space via sysfs interface for thousands iterations). It turns out that the issue is caused by coherency of the cpu that is being shut down. When shutting down a cpu, we need to have the cpu exit coherency to prevent it from receiving cache, TLB, or BTB maintenance operations broadcast by other CPUs in the cluster. Copy cpu_enter_lowpower() and cpu_leave_lowpower() from mach-vexpress to have coherency properly handled in platform_cpu_die(), thus fix the issue. Signed-off-by: Shawn Guo Cc: stable@kernel.org --- arch/arm/mach-imx/hotplug.c | 42 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 41 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-imx/hotplug.c b/arch/arm/mach-imx/hotplug.c index 89493abd497c..20ed2d56c1af 100644 --- a/arch/arm/mach-imx/hotplug.c +++ b/arch/arm/mach-imx/hotplug.c @@ -12,6 +12,7 @@ #include #include +#include #include int platform_cpu_kill(unsigned int cpu) @@ -19,6 +20,44 @@ int platform_cpu_kill(unsigned int cpu) return 1; } +static inline void cpu_enter_lowpower(void) +{ + unsigned int v; + + flush_cache_all(); + asm volatile( + "mcr p15, 0, %1, c7, c5, 0\n" + " mcr p15, 0, %1, c7, c10, 4\n" + /* + * Turn off coherency + */ + " mrc p15, 0, %0, c1, c0, 1\n" + " bic %0, %0, %3\n" + " mcr p15, 0, %0, c1, c0, 1\n" + " mrc p15, 0, %0, c1, c0, 0\n" + " bic %0, %0, %2\n" + " mcr p15, 0, %0, c1, c0, 0\n" + : "=&r" (v) + : "r" (0), "Ir" (CR_C), "Ir" (0x40) + : "cc"); +} + +static inline void cpu_leave_lowpower(void) +{ + unsigned int v; + + asm volatile( + "mrc p15, 0, %0, c1, c0, 0\n" + " orr %0, %0, %1\n" + " mcr p15, 0, %0, c1, c0, 0\n" + " mrc p15, 0, %0, c1, c0, 1\n" + " orr %0, %0, %2\n" + " mcr p15, 0, %0, c1, c0, 1\n" + : "=&r" (v) + : "Ir" (CR_C), "Ir" (0x40) + : "cc"); +} + /* * platform-specific code to shutdown a CPU * @@ -26,9 +65,10 @@ int platform_cpu_kill(unsigned int cpu) */ void platform_cpu_die(unsigned int cpu) { - flush_cache_all(); + cpu_enter_lowpower(); imx_enable_cpu(cpu, false); cpu_do_idle(); + cpu_leave_lowpower(); /* We should never return from idle */ panic("cpu %d unexpectedly exit from shutdown\n", cpu); -- cgit v1.2.3-59-g8ed1b From 350ab15bb2ffe7103bc6bf6c634f3c5b286eaf2a Mon Sep 17 00:00:00 2001 From: Jaccon Bastiaansen Date: Mon, 30 Apr 2012 11:53:43 +0200 Subject: ARM i.MX imx21ads: Fix overlapping static i/o mappings The statically defined I/O memory regions for the i.MX21 on chip peripherals and the on board I/O peripherals of the i.MX21ADS board overlap. This results in a kernel crash during startup. This is fixed by reducing the memory range for the on board I/O peripherals to the actually required range. Signed-off-by: Jaccon Bastiaansen Signed-off-by: Sascha Hauer Cc: stable --- arch/arm/mach-imx/mach-mx21ads.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-imx/mach-mx21ads.c b/arch/arm/mach-imx/mach-mx21ads.c index e432d4acee1f..4460d25faae1 100644 --- a/arch/arm/mach-imx/mach-mx21ads.c +++ b/arch/arm/mach-imx/mach-mx21ads.c @@ -32,7 +32,7 @@ * Memory-mapped I/O on MX21ADS base board */ #define MX21ADS_MMIO_BASE_ADDR 0xf5000000 -#define MX21ADS_MMIO_SIZE SZ_16M +#define MX21ADS_MMIO_SIZE 0xc00000 #define MX21ADS_REG_ADDR(offset) (void __force __iomem *) \ (MX21ADS_MMIO_BASE_ADDR + (offset)) -- cgit v1.2.3-59-g8ed1b From 476585ecf08067ac4e81d1a4cb19e2caf2093471 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Wed, 6 Jun 2012 18:54:15 +0800 Subject: Bluetooth: Fix SMP pairing method selection The tk_request function takes the local IO capability as the second last parameter and the remote IO capability as the last parameter. They were previously swapped: when we receive a pairing response req->io_capability contains the local one and rsp->io_capability the remote one. Signed-off-by: Johan Hedberg Acked-by: Marcel Holtmann Signed-off-by: Gustavo Padovan --- net/bluetooth/smp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index 6fc7c4708f3e..c4ac2849d9c2 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -648,7 +648,7 @@ static u8 smp_cmd_pairing_rsp(struct l2cap_conn *conn, struct sk_buff *skb) auth |= (req->auth_req | rsp->auth_req) & SMP_AUTH_MITM; - ret = tk_request(conn, 0, auth, rsp->io_capability, req->io_capability); + ret = tk_request(conn, 0, auth, req->io_capability, rsp->io_capability); if (ret) return SMP_UNSPECIFIED; -- cgit v1.2.3-59-g8ed1b From 8e56130dcbcc0608c2531c61f93175e36a300e58 Mon Sep 17 00:00:00 2001 From: Rob Herring Date: Wed, 6 Jun 2012 17:20:10 -0500 Subject: ARM: highbank: Add smc calls to enable/disable the L2 Linux runs in non-secure mode on highbank, so we need secure monitor calls to enable and disable the PL310. Rather than invent new smc calls, the same calling convention used by OMAP is used here. Signed-off-by: Rob Herring Signed-off-by: Olof Johansson --- arch/arm/mach-highbank/Makefile | 6 +++++- arch/arm/mach-highbank/core.h | 1 + arch/arm/mach-highbank/highbank.c | 14 ++++++++++++++ arch/arm/mach-highbank/smc.S | 27 +++++++++++++++++++++++++++ 4 files changed, 47 insertions(+), 1 deletion(-) create mode 100644 arch/arm/mach-highbank/smc.S diff --git a/arch/arm/mach-highbank/Makefile b/arch/arm/mach-highbank/Makefile index f8437dd238c2..ded4652ada80 100644 --- a/arch/arm/mach-highbank/Makefile +++ b/arch/arm/mach-highbank/Makefile @@ -1,4 +1,8 @@ -obj-y := clock.o highbank.o system.o +obj-y := clock.o highbank.o system.o smc.o + +plus_sec := $(call as-instr,.arch_extension sec,+sec) +AFLAGS_smc.o :=-Wa,-march=armv7-a$(plus_sec) + obj-$(CONFIG_DEBUG_HIGHBANK_UART) += lluart.o obj-$(CONFIG_SMP) += platsmp.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o diff --git a/arch/arm/mach-highbank/core.h b/arch/arm/mach-highbank/core.h index d8e2d0be64ac..141ed5171826 100644 --- a/arch/arm/mach-highbank/core.h +++ b/arch/arm/mach-highbank/core.h @@ -8,3 +8,4 @@ extern void highbank_lluart_map_io(void); static inline void highbank_lluart_map_io(void) {} #endif +extern void highbank_smc1(int fn, int arg); diff --git a/arch/arm/mach-highbank/highbank.c b/arch/arm/mach-highbank/highbank.c index 410a112bb52e..8777612b1a42 100644 --- a/arch/arm/mach-highbank/highbank.c +++ b/arch/arm/mach-highbank/highbank.c @@ -85,10 +85,24 @@ const static struct of_device_id irq_match[] = { {} }; +#ifdef CONFIG_CACHE_L2X0 +static void highbank_l2x0_disable(void) +{ + /* Disable PL310 L2 Cache controller */ + highbank_smc1(0x102, 0x0); +} +#endif + static void __init highbank_init_irq(void) { of_irq_init(irq_match); + +#ifdef CONFIG_CACHE_L2X0 + /* Enable PL310 L2 Cache controller */ + highbank_smc1(0x102, 0x1); l2x0_of_init(0, ~0UL); + outer_cache.disable = highbank_l2x0_disable; +#endif } static void __init highbank_timer_init(void) diff --git a/arch/arm/mach-highbank/smc.S b/arch/arm/mach-highbank/smc.S new file mode 100644 index 000000000000..407d17baaaa9 --- /dev/null +++ b/arch/arm/mach-highbank/smc.S @@ -0,0 +1,27 @@ +/* + * Copied from omap44xx-smc.S Copyright (C) 2010 Texas Instruments, Inc. + * Copyright 2012 Calxeda, Inc. + * + * This program is free software,you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include + +/* + * This is common routine to manage secure monitor API + * used to modify the PL310 secure registers. + * 'r0' contains the value to be modified and 'r12' contains + * the monitor API number. + * Function signature : void highbank_smc1(u32 fn, u32 arg) + */ + +ENTRY(highbank_smc1) + stmfd sp!, {r4-r11, lr} + mov r12, r0 + mov r0, r1 + dsb + smc #0 + ldmfd sp!, {r4-r11, pc} +ENDPROC(highbank_smc1) -- cgit v1.2.3-59-g8ed1b From 4c47d7396420160d27209f578680141874c0110b Mon Sep 17 00:00:00 2001 From: Vishal Agarwal Date: Thu, 7 Jun 2012 20:27:35 +0530 Subject: Bluetooth: Fix LE pairing completion on connection failure For BR/EDR pairing is assumed to be finished when connection is done. For LE if connection is successful it did not necessarily mean that pairing is also done but if the connection is unsuccessful it should be assumed that pairing procedure is also finished. This patch registers a new function with connect_cfm_cb callback for LE link which sends the pairing complete signal to user space if connection is unsuccessful. Signed-off-by: Vishal Agarwal Acked-by: Johan Hedberg Signed-off-by: Gustavo Padovan --- net/bluetooth/mgmt.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 25d220776079..991d5b667674 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -1873,6 +1873,22 @@ static void pairing_complete_cb(struct hci_conn *conn, u8 status) pairing_complete(cmd, mgmt_status(status)); } +static void le_connect_complete_cb(struct hci_conn *conn, u8 status) +{ + struct pending_cmd *cmd; + + BT_DBG("status %u", status); + + if (!status) + return; + + cmd = find_pairing(conn); + if (!cmd) + BT_DBG("Unable to find a pending command"); + else + pairing_complete(cmd, mgmt_status(status)); +} + static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data, u16 len) { @@ -1934,6 +1950,8 @@ static int pair_device(struct sock *sk, struct hci_dev *hdev, void *data, /* For LE, just connecting isn't a proof that the pairing finished */ if (cp->addr.type == BDADDR_BREDR) conn->connect_cfm_cb = pairing_complete_cb; + else + conn->connect_cfm_cb = le_connect_complete_cb; conn->security_cfm_cb = pairing_complete_cb; conn->disconn_cfm_cb = pairing_complete_cb; -- cgit v1.2.3-59-g8ed1b From d06cc416f517a25713dedd9e2a9ccf4f3086c09a Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Wed, 6 Jun 2012 18:44:11 +0800 Subject: Bluetooth: Fix deadlock and crash when SMP pairing times out The l2cap_conn_del function tries to cancel_sync the security timer, but when it's called from the timeout function itself a deadlock occurs. Subsequently the "hcon->l2cap_data = NULL" that's supposed to protect multiple calls to l2cap_conn_del never gets cleared and when the connection finally drops we double free's etc which will crash the kernel. This patch fixes the issue by using the HCI_CONN_LE_SMP_PEND for protecting against this. The same flag is also used for the same purpose in other places in the SMP code. Signed-off-by: Johan Hedberg Signed-off-by: Gustavo Padovan --- net/bluetooth/l2cap_core.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 24f144b72a96..8394e3615ef6 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -1295,7 +1295,12 @@ static void security_timeout(struct work_struct *work) struct l2cap_conn *conn = container_of(work, struct l2cap_conn, security_timer.work); - l2cap_conn_del(conn->hcon, ETIMEDOUT); + BT_DBG("conn %p", conn); + + if (test_and_clear_bit(HCI_CONN_LE_SMP_PEND, &conn->hcon->flags)) { + smp_chan_destroy(conn); + l2cap_conn_del(conn->hcon, ETIMEDOUT); + } } static struct l2cap_conn *l2cap_conn_add(struct hci_conn *hcon, u8 status) -- cgit v1.2.3-59-g8ed1b From 4dab786482d706a2a41cd16cf174671d640a9870 Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Thu, 7 Jun 2012 14:58:37 +0800 Subject: Bluetooth: Fix SMP security elevation from medium to high If we have an unauthenticated key it is not sufficient to acheive high security. Therefore, when deciding whether to encrypt the link or request pairing, it is essential to in addition to checking the existence of a key to also check whether it is authenticated or not. Signed-off-by: Johan Hedberg Signed-off-by: Gustavo Padovan --- net/bluetooth/smp.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/net/bluetooth/smp.c b/net/bluetooth/smp.c index c4ac2849d9c2..37df4e9b3896 100644 --- a/net/bluetooth/smp.c +++ b/net/bluetooth/smp.c @@ -703,7 +703,7 @@ static u8 smp_cmd_pairing_random(struct l2cap_conn *conn, struct sk_buff *skb) return 0; } -static u8 smp_ltk_encrypt(struct l2cap_conn *conn) +static u8 smp_ltk_encrypt(struct l2cap_conn *conn, u8 sec_level) { struct smp_ltk *key; struct hci_conn *hcon = conn->hcon; @@ -712,6 +712,9 @@ static u8 smp_ltk_encrypt(struct l2cap_conn *conn) if (!key) return 0; + if (sec_level > BT_SECURITY_MEDIUM && !key->authenticated) + return 0; + if (test_and_set_bit(HCI_CONN_ENCRYPT_PEND, &hcon->flags)) return 1; @@ -732,7 +735,7 @@ static u8 smp_cmd_security_req(struct l2cap_conn *conn, struct sk_buff *skb) hcon->pending_sec_level = authreq_to_seclevel(rp->auth_req); - if (smp_ltk_encrypt(conn)) + if (smp_ltk_encrypt(conn, hcon->pending_sec_level)) return 0; if (test_and_set_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags)) @@ -771,7 +774,7 @@ int smp_conn_security(struct l2cap_conn *conn, __u8 sec_level) return 1; if (hcon->link_mode & HCI_LM_MASTER) - if (smp_ltk_encrypt(conn)) + if (smp_ltk_encrypt(conn, sec_level)) goto done; if (test_and_set_bit(HCI_CONN_LE_SMP_PEND, &hcon->flags)) -- cgit v1.2.3-59-g8ed1b From 1c2e004183178e1947882cd2e74f37826f45230e Mon Sep 17 00:00:00 2001 From: Johan Hedberg Date: Fri, 8 Jun 2012 23:31:13 +0800 Subject: Bluetooth: Add support for encryption key refresh With LE/SMP the completion of a security level elavation from medium to high is indicated by a HCI Encryption Key Refresh Complete event. The necessary behavior upon receiving this event is a mix of what's done for auth_complete and encryption_change, which is also where most of the event handling code has been copied from. Signed-off-by: Johan Hedberg Signed-off-by: Gustavo Padovan --- include/net/bluetooth/hci.h | 6 ++++++ net/bluetooth/hci_event.c | 48 +++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 54 insertions(+) diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index 66a7b579e31c..3def64ba77fa 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -1144,6 +1144,12 @@ struct extended_inquiry_info { __u8 data[240]; } __packed; +#define HCI_EV_KEY_REFRESH_COMPLETE 0x30 +struct hci_ev_key_refresh_complete { + __u8 status; + __le16 handle; +} __packed; + #define HCI_EV_IO_CAPA_REQUEST 0x31 struct hci_ev_io_capa_request { bdaddr_t bdaddr; diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c index 4eefb7f65cf6..94ad124a4ea3 100644 --- a/net/bluetooth/hci_event.c +++ b/net/bluetooth/hci_event.c @@ -3043,6 +3043,50 @@ static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct hci_dev_unlock(hdev); } +static void hci_key_refresh_complete_evt(struct hci_dev *hdev, + struct sk_buff *skb) +{ + struct hci_ev_key_refresh_complete *ev = (void *) skb->data; + struct hci_conn *conn; + + BT_DBG("%s status %u handle %u", hdev->name, ev->status, + __le16_to_cpu(ev->handle)); + + hci_dev_lock(hdev); + + conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle)); + if (!conn) + goto unlock; + + if (!ev->status) + conn->sec_level = conn->pending_sec_level; + + clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->flags); + + if (ev->status && conn->state == BT_CONNECTED) { + hci_acl_disconn(conn, HCI_ERROR_AUTH_FAILURE); + hci_conn_put(conn); + goto unlock; + } + + if (conn->state == BT_CONFIG) { + if (!ev->status) + conn->state = BT_CONNECTED; + + hci_proto_connect_cfm(conn, ev->status); + hci_conn_put(conn); + } else { + hci_auth_cfm(conn, ev->status); + + hci_conn_hold(conn); + conn->disc_timeout = HCI_DISCONN_TIMEOUT; + hci_conn_put(conn); + } + +unlock: + hci_dev_unlock(hdev); +} + static inline u8 hci_get_auth_req(struct hci_conn *conn) { /* If remote requests dedicated bonding follow that lead */ @@ -3559,6 +3603,10 @@ void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb) hci_extended_inquiry_result_evt(hdev, skb); break; + case HCI_EV_KEY_REFRESH_COMPLETE: + hci_key_refresh_complete_evt(hdev, skb); + break; + case HCI_EV_IO_CAPA_REQUEST: hci_io_capa_request_evt(hdev, skb); break; -- cgit v1.2.3-59-g8ed1b From d13e14148154e5ce58467e76321eef1dd912c416 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Sat, 9 Jun 2012 10:31:09 +0200 Subject: mac80211: add some missing kernel-doc Add a few kernel-doc descriptions that were missed during development. Reported-by: Randy Dunlap Signed-off-by: Johannes Berg --- include/net/mac80211.h | 6 ++++++ net/mac80211/sta_info.h | 2 ++ 2 files changed, 8 insertions(+) diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 1937c7d98304..95e39b6a02ec 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -1940,6 +1940,11 @@ enum ieee80211_rate_control_changed { * to also unregister the device. If it returns 1, then mac80211 * will also go through the regular complete restart on resume. * + * @set_wakeup: Enable or disable wakeup when WoWLAN configuration is + * modified. The reason is that device_set_wakeup_enable() is + * supposed to be called when the configuration changes, not only + * in suspend(). + * * @add_interface: Called when a netdevice attached to the hardware is * enabled. Because it is not called for monitor mode devices, @start * and @stop must be implemented. @@ -2966,6 +2971,7 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, * ieee80211_generic_frame_duration - Calculate the duration field for a frame * @hw: pointer obtained from ieee80211_alloc_hw(). * @vif: &struct ieee80211_vif pointer from the add_interface callback. + * @band: the band to calculate the frame duration on * @frame_len: the length of the frame. * @rate: the rate at which the frame is going to be transmitted. * diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 3bb24a121c95..525ce5077e1c 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -278,6 +278,8 @@ struct sta_ampdu_mlme { * @sta: station information we share with the driver * @sta_state: duplicates information about station state (for debug) * @beacon_loss_count: number of times beacon loss has triggered + * @supports_40mhz: tracks whether the station advertised 40 MHz support + * as we overwrite its HT parameters with the currently used value */ struct sta_info { /* General information, mostly static */ -- cgit v1.2.3-59-g8ed1b From f8cdddb8d61d16a156229f0910f7ecfc7a82c003 Mon Sep 17 00:00:00 2001 From: Michal Kazior Date: Fri, 8 Jun 2012 10:55:44 +0200 Subject: cfg80211: check iface combinations only when iface is running Don't validate interface combinations on a stopped interface. Otherwise we might end up being able to create a new interface with a certain type, but won't be able to change an existing interface into that type. This also skips some other functions when interface is stopped and changing interface type. Signed-off-by: Michal Kazior Signed-off-by: Johannes Berg --- net/wireless/util.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/wireless/util.c b/net/wireless/util.c index 8f2d68fc3a44..316cfd00914f 100644 --- a/net/wireless/util.c +++ b/net/wireless/util.c @@ -804,7 +804,7 @@ int cfg80211_change_iface(struct cfg80211_registered_device *rdev, ntype == NL80211_IFTYPE_P2P_CLIENT)) return -EBUSY; - if (ntype != otype) { + if (ntype != otype && netif_running(dev)) { err = cfg80211_can_change_interface(rdev, dev->ieee80211_ptr, ntype); if (err) -- cgit v1.2.3-59-g8ed1b From ea3b2ea24ef0f2ef9c6795b19cff456195b6728a Mon Sep 17 00:00:00 2001 From: Shmulik Ladkani Date: Fri, 8 Jun 2012 18:29:06 +0300 Subject: mtd: nand: initialize bitflip_threshold prior to BBT scanning As of edbc454 [mtd: driver _read() returns max_bitflips; mtd_read() returns -EUCLEAN], 'mtd->bitflip_threshold' must be set for mtd devices having ECC, prior any 'mtd_read()' call. Otherwise, 'mtd_read()' will falsely return -EUCLEAN. Normally, 'mtd->bitflip_threshold' is initialized when the MTD is added. However, this is too late for NAND MTDs, as 'scan_bbt()' is invoked prior the existing initialization of 'mtd->bitflip_threshold'. This is a problem since 'scan_bbt()' calls 'mtd_read()', in the case of a flash-based bad block table. It resulted in a falsely reported bitflips indication during BBT read, which lead to constant scrubbing of the flash BBT blocks. Initialize 'mtd->bitflip_threshold' to its default value (if not already set by the driver), prior to invocation of 'scan_bbt()'. Reported-by: Sascha Hauer Tested-by: Sascha Hauer Signed-off-by: Shmulik Ladkani Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/nand_base.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index d47586cf64ce..a11253a0fcab 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -3501,6 +3501,13 @@ int nand_scan_tail(struct mtd_info *mtd) /* propagate ecc info to mtd_info */ mtd->ecclayout = chip->ecc.layout; mtd->ecc_strength = chip->ecc.strength; + /* + * Initialize bitflip_threshold to its default prior scan_bbt() call. + * scan_bbt() might invoke mtd_read(), thus bitflip_threshold must be + * properly set. + */ + if (!mtd->bitflip_threshold) + mtd->bitflip_threshold = mtd->ecc_strength; /* Check, if we should skip the bad block table scan */ if (chip->options & NAND_SKIP_BBTSCAN) -- cgit v1.2.3-59-g8ed1b From bcc2c9c3fff859e0eb019fe6fec26f9b8eba795c Mon Sep 17 00:00:00 2001 From: Olaf Hering Date: Thu, 31 May 2012 16:40:06 +0200 Subject: Tools: hv: verify origin of netlink connector message The SuSE security team suggested to use recvfrom instead of recv to be certain that the connector message is originated from kernel. CVE-2012-2669 Signed-off-by: Olaf Hering Signed-off-by: Marcus Meissner Signed-off-by: Sebastian Krahmer Signed-off-by: K. Y. Srinivasan Cc: stable Signed-off-by: Greg Kroah-Hartman --- tools/hv/hv_kvp_daemon.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/tools/hv/hv_kvp_daemon.c b/tools/hv/hv_kvp_daemon.c index 146fd6147e84..d9834b362943 100644 --- a/tools/hv/hv_kvp_daemon.c +++ b/tools/hv/hv_kvp_daemon.c @@ -701,14 +701,18 @@ int main(void) pfd.fd = fd; while (1) { + struct sockaddr *addr_p = (struct sockaddr *) &addr; + socklen_t addr_l = sizeof(addr); pfd.events = POLLIN; pfd.revents = 0; poll(&pfd, 1, -1); - len = recv(fd, kvp_recv_buffer, sizeof(kvp_recv_buffer), 0); + len = recvfrom(fd, kvp_recv_buffer, sizeof(kvp_recv_buffer), 0, + addr_p, &addr_l); - if (len < 0) { - syslog(LOG_ERR, "recv failed; error:%d", len); + if (len < 0 || addr.nl_pid) { + syslog(LOG_ERR, "recvfrom failed; pid:%u error:%d %s", + addr.nl_pid, errno, strerror(errno)); close(fd); return -1; } -- cgit v1.2.3-59-g8ed1b From 6eda541d12116b4772baa09d3e8d7b0389df4289 Mon Sep 17 00:00:00 2001 From: Marek Vasut Date: Fri, 8 Jun 2012 14:32:50 +0200 Subject: Bluetooth: Support AR3011 in Acer Iconia Tab W500 Acer used this chip connected via USB: Bus 005 Device 005: ID 0cf3:3005 Atheros Communications, Inc. AR3011 Bluetooth Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 224 Wireless bDeviceSubClass 1 Radio Frequency bDeviceProtocol 1 Bluetooth bMaxPacketSize0 64 idVendor 0x0cf3 Atheros Communications, Inc. idProduct 0x3005 AR3011 Bluetooth bcdDevice 0.01 iManufacturer 0 iProduct 0 iSerial 0 bNumConfigurations 1 Signed-off-by: Marek Vasut Cc: Gustavo Padovan Cc: Johan Hedberg Cc: Marcel Holtmann Signed-off-by: Gustavo Padovan --- drivers/bluetooth/ath3k.c | 1 + drivers/bluetooth/btusb.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index ad591bd240ec..f0f62021227f 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -63,6 +63,7 @@ static struct usb_device_id ath3k_table[] = { /* Atheros AR3011 with sflash firmware*/ { USB_DEVICE(0x0CF3, 0x3002) }, + { USB_DEVICE(0x0CF3, 0xE019) }, { USB_DEVICE(0x13d3, 0x3304) }, { USB_DEVICE(0x0930, 0x0215) }, { USB_DEVICE(0x0489, 0xE03D) }, diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index c9463af8e564..ff3eabc45ff5 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -125,6 +125,7 @@ static struct usb_device_id blacklist_table[] = { /* Atheros 3011 with sflash firmware */ { USB_DEVICE(0x0cf3, 0x3002), .driver_info = BTUSB_IGNORE }, + { USB_DEVICE(0x0cf3, 0xe019), .driver_info = BTUSB_IGNORE }, { USB_DEVICE(0x13d3, 0x3304), .driver_info = BTUSB_IGNORE }, { USB_DEVICE(0x0930, 0x0215), .driver_info = BTUSB_IGNORE }, { USB_DEVICE(0x0489, 0xe03d), .driver_info = BTUSB_IGNORE }, -- cgit v1.2.3-59-g8ed1b From e981f6d41acda2ae8c05e60feb2cb97772b4a6e6 Mon Sep 17 00:00:00 2001 From: Sjur Brændeland Date: Sun, 10 Jun 2012 14:37:07 +0300 Subject: remoteproc: fix print format warnings MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix compile warnings from GCC 4.6.1 when printing values of type size_t. drivers/remoteproc/remoteproc_core.c:251:6: warning: format ‘%x’ expects argument of type ‘unsigned int’, but argument 4 has type ‘size_t’ [-Wformat] drivers/remoteproc/remoteproc_core.c:938:9: warning: format ‘%u’ expects argument of type ‘unsigned int’, but argument 4 has type ‘size_t’ [-Wformat] drivers/remoteproc/remoteproc_core.c:1023:2: warning: format ‘%d’ expects argument of type ‘int’, but argument 4 has type ‘size_t’ [-Wformat] Signed-off-by: Sjur Brændeland Signed-off-by: Ohad Ben-Cohen Cc: stable@vger.kernel.org --- drivers/remoteproc/remoteproc_core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index 8ea7bccc7100..cb13f1b74416 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -247,7 +247,7 @@ rproc_load_segments(struct rproc *rproc, const u8 *elf_data, size_t len) } if (offset + filesz > len) { - dev_err(dev, "truncated fw: need 0x%x avail 0x%x\n", + dev_err(dev, "truncated fw: need 0x%x avail 0x%zx\n", offset + filesz, len); ret = -EINVAL; break; @@ -934,7 +934,7 @@ static void rproc_resource_cleanup(struct rproc *rproc) unmapped = iommu_unmap(rproc->domain, entry->da, entry->len); if (unmapped != entry->len) { /* nothing much to do besides complaining */ - dev_err(dev, "failed to unmap %u/%u\n", entry->len, + dev_err(dev, "failed to unmap %u/%zu\n", entry->len, unmapped); } @@ -1020,7 +1020,7 @@ static int rproc_fw_boot(struct rproc *rproc, const struct firmware *fw) ehdr = (struct elf32_hdr *)fw->data; - dev_info(dev, "Booting fw image %s, size %d\n", name, fw->size); + dev_info(dev, "Booting fw image %s, size %zd\n", name, fw->size); /* * if enabling an IOMMU isn't relevant for this rproc, this is -- cgit v1.2.3-59-g8ed1b From 30338cf09f82523d8747670f7363cc8af347c79f Mon Sep 17 00:00:00 2001 From: Sjur Brændeland Date: Sun, 10 Jun 2012 14:37:51 +0300 Subject: remoteproc: fix missing fault indication in error-path MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit If rproc_find_rsc_table() fails, rproc_fw_boot() must set return-value before jumping to clean_up label. Otherwise no error value is returned. Signed-off-by: Sjur Brændeland Signed-off-by: Ohad Ben-Cohen Cc: stable@vger.kernel.org --- drivers/remoteproc/remoteproc_core.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c index cb13f1b74416..66324ee4678f 100644 --- a/drivers/remoteproc/remoteproc_core.c +++ b/drivers/remoteproc/remoteproc_core.c @@ -1041,8 +1041,10 @@ static int rproc_fw_boot(struct rproc *rproc, const struct firmware *fw) /* look for the resource table */ table = rproc_find_rsc_table(rproc, fw->data, fw->size, &tablesz); - if (!table) + if (!table) { + ret = -EINVAL; goto clean_up; + } /* handle fw resources which are required to boot rproc */ ret = rproc_handle_boot_rsc(rproc, table, tablesz); -- cgit v1.2.3-59-g8ed1b From 601722157b3f6be73623644eeae6f14940f0bd8f Mon Sep 17 00:00:00 2001 From: Qiao Zhou Date: Mon, 4 Jun 2012 10:41:03 +0800 Subject: ARM: MMP: add pxa910-ssp into ssp_id_table add pxa910-ssp into ssp_id_table, and fix pxa-ssp compiling issue under mach-mmp architect. Signed-off-by: Qiao Zhou Acked-by: Haojian Zhuang Signed-off-by: Mark Brown --- arch/arm/plat-pxa/ssp.c | 1 + include/linux/pxa2xx_ssp.h | 1 + include/linux/spi/pxa2xx_spi.h | 2 +- 3 files changed, 3 insertions(+), 1 deletion(-) diff --git a/arch/arm/plat-pxa/ssp.c b/arch/arm/plat-pxa/ssp.c index 58b79809d20c..584c9bf8ed2d 100644 --- a/arch/arm/plat-pxa/ssp.c +++ b/arch/arm/plat-pxa/ssp.c @@ -193,6 +193,7 @@ static const struct platform_device_id ssp_id_table[] = { { "pxa25x-nssp", PXA25x_NSSP }, { "pxa27x-ssp", PXA27x_SSP }, { "pxa168-ssp", PXA168_SSP }, + { "pxa910-ssp", PXA910_SSP }, { }, }; diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h index 44835fb39793..f9fe15ec2b51 100644 --- a/include/linux/pxa2xx_ssp.h +++ b/include/linux/pxa2xx_ssp.h @@ -161,6 +161,7 @@ enum pxa_ssp_type { PXA25x_NSSP, /* pxa 255, 26x (including ASSP) */ PXA27x_SSP, PXA168_SSP, + PXA910_SSP, CE4100_SSP, }; diff --git a/include/linux/spi/pxa2xx_spi.h b/include/linux/spi/pxa2xx_spi.h index d3e1075f7b60..c73d1445c77e 100644 --- a/include/linux/spi/pxa2xx_spi.h +++ b/include/linux/spi/pxa2xx_spi.h @@ -43,7 +43,7 @@ struct pxa2xx_spi_chip { void (*cs_control)(u32 command); }; -#ifdef CONFIG_ARCH_PXA +#if defined(CONFIG_ARCH_PXA) || defined(CONFIG_ARCH_MMP) #include #include -- cgit v1.2.3-59-g8ed1b From 972a55b62d592cfcd6d73577df8a52f1251ea9a7 Mon Sep 17 00:00:00 2001 From: Qiao Zhou Date: Mon, 4 Jun 2012 10:41:04 +0800 Subject: ASoC: fix pxa-ssp compiling issue under mach-mmp pxa-ssp.c uses API like cpu_is_pxa3xx(), cpu_is_pxa2xx(), which is defined under arch-pxa architecture, and drivers under mach-mmp can't find it. so just use ssp->type to replace that API. Signed-off-by: Qiao Zhou Acked-by: Haojian Zhuang Signed-off-by: Mark Brown --- include/linux/pxa2xx_ssp.h | 1 + sound/soc/pxa/pxa-ssp.c | 38 +++++++++++--------------------------- 2 files changed, 12 insertions(+), 27 deletions(-) diff --git a/include/linux/pxa2xx_ssp.h b/include/linux/pxa2xx_ssp.h index f9fe15ec2b51..f36632061c66 100644 --- a/include/linux/pxa2xx_ssp.h +++ b/include/linux/pxa2xx_ssp.h @@ -160,6 +160,7 @@ enum pxa_ssp_type { PXA25x_SSP, /* pxa 210, 250, 255, 26x */ PXA25x_NSSP, /* pxa 255, 26x (including ASSP) */ PXA27x_SSP, + PXA3xx_SSP, PXA168_SSP, PXA910_SSP, CE4100_SSP, diff --git a/sound/soc/pxa/pxa-ssp.c b/sound/soc/pxa/pxa-ssp.c index 1c2aa7fab3fd..4da5fc55c7ee 100644 --- a/sound/soc/pxa/pxa-ssp.c +++ b/sound/soc/pxa/pxa-ssp.c @@ -33,7 +33,6 @@ #include #include -#include #include "../../arm/pxa2xx-pcm.h" #include "pxa-ssp.h" @@ -194,7 +193,7 @@ static void pxa_ssp_set_scr(struct ssp_device *ssp, u32 div) { u32 sscr0 = pxa_ssp_read_reg(ssp, SSCR0); - if (cpu_is_pxa25x() && ssp->type == PXA25x_SSP) { + if (ssp->type == PXA25x_SSP) { sscr0 &= ~0x0000ff00; sscr0 |= ((div - 2)/2) << 8; /* 2..512 */ } else { @@ -212,7 +211,7 @@ static u32 pxa_ssp_get_scr(struct ssp_device *ssp) u32 sscr0 = pxa_ssp_read_reg(ssp, SSCR0); u32 div; - if (cpu_is_pxa25x() && ssp->type == PXA25x_SSP) + if (ssp->type == PXA25x_SSP) div = ((sscr0 >> 8) & 0xff) * 2 + 2; else div = ((sscr0 >> 8) & 0xfff) + 1; @@ -242,7 +241,7 @@ static int pxa_ssp_set_dai_sysclk(struct snd_soc_dai *cpu_dai, break; case PXA_SSP_CLK_PLL: /* Internal PLL is fixed */ - if (cpu_is_pxa25x()) + if (ssp->type == PXA25x_SSP) priv->sysclk = 1843200; else priv->sysclk = 13000000; @@ -266,11 +265,11 @@ static int pxa_ssp_set_dai_sysclk(struct snd_soc_dai *cpu_dai, /* The SSP clock must be disabled when changing SSP clock mode * on PXA2xx. On PXA3xx it must be enabled when doing so. */ - if (!cpu_is_pxa3xx()) + if (ssp->type != PXA3xx_SSP) clk_disable(ssp->clk); val = pxa_ssp_read_reg(ssp, SSCR0) | sscr0; pxa_ssp_write_reg(ssp, SSCR0, val); - if (!cpu_is_pxa3xx()) + if (ssp->type != PXA3xx_SSP) clk_enable(ssp->clk); return 0; @@ -294,24 +293,20 @@ static int pxa_ssp_set_dai_clkdiv(struct snd_soc_dai *cpu_dai, case PXA_SSP_AUDIO_DIV_SCDB: val = pxa_ssp_read_reg(ssp, SSACD); val &= ~SSACD_SCDB; -#if defined(CONFIG_PXA3xx) - if (cpu_is_pxa3xx()) + if (ssp->type == PXA3xx_SSP) val &= ~SSACD_SCDX8; -#endif switch (div) { case PXA_SSP_CLK_SCDB_1: val |= SSACD_SCDB; break; case PXA_SSP_CLK_SCDB_4: break; -#if defined(CONFIG_PXA3xx) case PXA_SSP_CLK_SCDB_8: - if (cpu_is_pxa3xx()) + if (ssp->type == PXA3xx_SSP) val |= SSACD_SCDX8; else return -EINVAL; break; -#endif default: return -EINVAL; } @@ -337,10 +332,8 @@ static int pxa_ssp_set_dai_pll(struct snd_soc_dai *cpu_dai, int pll_id, struct ssp_device *ssp = priv->ssp; u32 ssacd = pxa_ssp_read_reg(ssp, SSACD) & ~0x70; -#if defined(CONFIG_PXA3xx) - if (cpu_is_pxa3xx()) + if (ssp->type == PXA3xx_SSP) pxa_ssp_write_reg(ssp, SSACDD, 0); -#endif switch (freq_out) { case 5622000: @@ -365,11 +358,10 @@ static int pxa_ssp_set_dai_pll(struct snd_soc_dai *cpu_dai, int pll_id, break; default: -#ifdef CONFIG_PXA3xx /* PXA3xx has a clock ditherer which can be used to generate * a wider range of frequencies - calculate a value for it. */ - if (cpu_is_pxa3xx()) { + if (ssp->type == PXA3xx_SSP) { u32 val; u64 tmp = 19968; tmp *= 1000000; @@ -386,7 +378,6 @@ static int pxa_ssp_set_dai_pll(struct snd_soc_dai *cpu_dai, int pll_id, val, freq_out); break; } -#endif return -EINVAL; } @@ -590,10 +581,8 @@ static int pxa_ssp_hw_params(struct snd_pcm_substream *substream, /* bit size */ switch (params_format(params)) { case SNDRV_PCM_FORMAT_S16_LE: -#ifdef CONFIG_PXA3xx - if (cpu_is_pxa3xx()) + if (ssp->type == PXA3xx_SSP) sscr0 |= SSCR0_FPCKE; -#endif sscr0 |= SSCR0_DataSize(16); break; case SNDRV_PCM_FORMAT_S24_LE: @@ -618,9 +607,7 @@ static int pxa_ssp_hw_params(struct snd_pcm_substream *substream, * trying and failing a lot; some of the registers * needed for that mode are only available on PXA3xx. */ - -#ifdef CONFIG_PXA3xx - if (!cpu_is_pxa3xx()) + if (ssp->type != PXA3xx_SSP) return -EINVAL; sspsp |= SSPSP_SFRMWDTH(width * 2); @@ -628,9 +615,6 @@ static int pxa_ssp_hw_params(struct snd_pcm_substream *substream, sspsp |= SSPSP_EDMYSTOP(3); sspsp |= SSPSP_DMYSTOP(3); sspsp |= SSPSP_DMYSTRT(1); -#else - return -EINVAL; -#endif } else { /* The frame width is the width the LRCLK is * asserted for; the delay is expressed in -- cgit v1.2.3-59-g8ed1b From 433897f7408b556f7dfbb98c94deea02e634d2a7 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 9 Jun 2012 11:38:12 +0800 Subject: ASoC: wm8904: Fix GPIO and MICBIAS initialisation for regmap conversion We no longer have a flat ASoC cache so can't peer directly into the array any more but should instead use the register I/O functions to update the cache. Signed-off-by: Mark Brown Cc: stable@vger.kernel.org (v3.4) --- sound/soc/codecs/wm8904.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c index 65d525d74c54..4e190b5950ba 100644 --- a/sound/soc/codecs/wm8904.c +++ b/sound/soc/codecs/wm8904.c @@ -2084,7 +2084,6 @@ static int wm8904_probe(struct snd_soc_codec *codec) { struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec); struct wm8904_pdata *pdata = wm8904->pdata; - u16 *reg_cache = codec->reg_cache; int ret, i; codec->cache_sync = 1; @@ -2180,14 +2179,18 @@ static int wm8904_probe(struct snd_soc_codec *codec) if (!pdata->gpio_cfg[i]) continue; - reg_cache[WM8904_GPIO_CONTROL_1 + i] - = pdata->gpio_cfg[i] & 0xffff; + regmap_update_bits(wm8904->regmap, + WM8904_GPIO_CONTROL_1 + i, + 0xffff, + pdata->gpio_cfg[i]); } /* Zero is the default value for these anyway */ for (i = 0; i < WM8904_MIC_REGS; i++) - reg_cache[WM8904_MIC_BIAS_CONTROL_0 + i] - = pdata->mic_cfg[i]; + regmap_update_bits(wm8904->regmap, + WM8904_MIC_BIAS_CONTROL_0 + i, + 0xffff, + pdata->mic_cfg[i]); } /* Set Class W by default - this will be managed by the Class -- cgit v1.2.3-59-g8ed1b From c1b88ee2bbb82c56ac24c70850004de9a43915d5 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 9 Jun 2012 11:27:17 +0800 Subject: ASoC: wm8904: Fix cache only management We should be using the regmap API consistently for all the cache only configuration and we should be going cache only before we power down the supplies. Signed-off-by: Mark Brown --- sound/soc/codecs/wm8904.c | 13 ++++--------- 1 file changed, 4 insertions(+), 9 deletions(-) diff --git a/sound/soc/codecs/wm8904.c b/sound/soc/codecs/wm8904.c index 4e190b5950ba..812acd83fb48 100644 --- a/sound/soc/codecs/wm8904.c +++ b/sound/soc/codecs/wm8904.c @@ -1863,6 +1863,7 @@ static int wm8904_set_bias_level(struct snd_soc_codec *codec, return ret; } + regcache_cache_only(wm8904->regmap, false); regcache_sync(wm8904->regmap); /* Enable bias */ @@ -1899,14 +1900,8 @@ static int wm8904_set_bias_level(struct snd_soc_codec *codec, snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0, WM8904_BIAS_ENA, 0); -#ifdef CONFIG_REGULATOR - /* Post 2.6.34 we will be able to get a callback when - * the regulators are disabled which we can use but - * for now just assume that the power will be cut if - * the regulator API is in use. - */ - codec->cache_sync = 1; -#endif + regcache_cache_only(wm8904->regmap, true); + regcache_mark_dirty(wm8904->regmap); regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies); @@ -2086,7 +2081,6 @@ static int wm8904_probe(struct snd_soc_codec *codec) struct wm8904_pdata *pdata = wm8904->pdata; int ret, i; - codec->cache_sync = 1; codec->control_data = wm8904->regmap; switch (wm8904->devtype) { @@ -2149,6 +2143,7 @@ static int wm8904_probe(struct snd_soc_codec *codec) goto err_enable; } + regcache_cache_only(wm8904->regmap, true); /* Change some default settings - latch VU and enable ZC */ snd_soc_update_bits(codec, WM8904_ADC_DIGITAL_VOLUME_LEFT, WM8904_ADC_VU, WM8904_ADC_VU); -- cgit v1.2.3-59-g8ed1b From 90ba6859ce914feff3632eeb7227b9f99c030ca9 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 11 Jun 2012 18:15:50 +0800 Subject: ASoC: wm8996: Remove spurious regulator_bulk_free() We're using demv_regulator_bulk_get() so don't need to manually free and this is in the CODEC driver not the I2C driver anyway. Signed-off-by: Mark Brown --- sound/soc/codecs/wm8996.c | 1 - 1 file changed, 1 deletion(-) diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c index 8af422e38fd0..379bd1e49432 100644 --- a/sound/soc/codecs/wm8996.c +++ b/sound/soc/codecs/wm8996.c @@ -3051,7 +3051,6 @@ static int wm8996_remove(struct snd_soc_codec *codec) for (i = 0; i < ARRAY_SIZE(wm8996->supplies); i++) regulator_unregister_notifier(wm8996->supplies[i].consumer, &wm8996->disable_nb[i]); - regulator_bulk_free(ARRAY_SIZE(wm8996->supplies), wm8996->supplies); return 0; } -- cgit v1.2.3-59-g8ed1b From db1334098392e1278a113e629a7ae58a7453f83f Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 11 Jun 2012 18:23:13 +0800 Subject: ASoC: wm8996: Move reset before the initial regulator disable If we don't have control over the LDO but do have control over the other regulators then we may end up trying to write to a powered off device. Signed-off-by: Mark Brown --- sound/soc/codecs/wm8996.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c index 379bd1e49432..64d9cf7149de 100644 --- a/sound/soc/codecs/wm8996.c +++ b/sound/soc/codecs/wm8996.c @@ -3205,14 +3205,14 @@ static __devinit int wm8996_i2c_probe(struct i2c_client *i2c, dev_info(&i2c->dev, "revision %c\n", (reg & WM8996_CHIP_REV_MASK) + 'A'); - regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies); - ret = wm8996_reset(wm8996); if (ret < 0) { dev_err(&i2c->dev, "Failed to issue reset\n"); goto err_regmap; } + regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies); + wm8996_init_gpio(wm8996); ret = snd_soc_register_codec(&i2c->dev, -- cgit v1.2.3-59-g8ed1b From 9c699e0a9566cfb6245284ce4857d7a06b02f3b1 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Mon, 11 Jun 2012 18:20:02 +0800 Subject: ASoC: wm8996: Mark the CODEC as cache only when powering off on boot Otherwise we might try to write to a powered off device. Signed-off-by: Mark Brown --- sound/soc/codecs/wm8996.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/sound/soc/codecs/wm8996.c b/sound/soc/codecs/wm8996.c index 64d9cf7149de..dc9b42b7fc4d 100644 --- a/sound/soc/codecs/wm8996.c +++ b/sound/soc/codecs/wm8996.c @@ -2837,8 +2837,6 @@ static int wm8996_probe(struct snd_soc_codec *codec) } } - regcache_cache_only(codec->control_data, true); - /* Apply platform data settings */ snd_soc_update_bits(codec, WM8996_LINE_INPUT_CONTROL, WM8996_INL_MODE_MASK | WM8996_INR_MODE_MASK, @@ -3211,6 +3209,7 @@ static __devinit int wm8996_i2c_probe(struct i2c_client *i2c, goto err_regmap; } + regcache_cache_only(wm8996->regmap, true); regulator_bulk_disable(ARRAY_SIZE(wm8996->supplies), wm8996->supplies); wm8996_init_gpio(wm8996); -- cgit v1.2.3-59-g8ed1b From 80c0120a3cca30166c0ab8b24e44be67e97b79af Mon Sep 17 00:00:00 2001 From: David Ahern Date: Fri, 8 Jun 2012 11:47:51 -0300 Subject: perf tools: Fix endianity swapping for adds_features bitmask Based on Jiri's latest attempt: https://lkml.org/lkml/2012/5/16/61 Basically, adds_features should be byte swapped assuming unsigned longs are either 8-bytes (u64) or 4-bytes (u32). Fixes 32-bit ppc dumping 64-bit x86 feature data: ======== captured on: Sun May 20 19:23:23 2012 hostname : nxos-vdc-dev3 os release : 3.4.0-rc7+ perf version : 3.4.rc4.137.g978da3 arch : x86_64 nrcpus online : 16 nrcpus avail : 16 cpudesc : Intel(R) Xeon(R) CPU E5540 @ 2.53GHz cpuid : GenuineIntel,6,26,5 total memory : 24680324 kB ... Verified 64-bit x86 can still dump feature data for 32-bit ppc. Signed-off-by: David Ahern Reviewed-by: Jiri Olsa Cc: Corey Ashford Cc: Frederic Weisbecker Cc: Paul Mackerras Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/4FBBB539.5010805@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/header.c | 16 +++++++++------- tools/perf/util/include/linux/bitops.h | 2 ++ tools/perf/util/session.c | 10 ++++++++++ tools/perf/util/session.h | 1 + 4 files changed, 22 insertions(+), 7 deletions(-) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 2dd5edf161b7..4f9b247fb312 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -1942,7 +1942,6 @@ int perf_file_header__read(struct perf_file_header *header, else return -1; } else if (ph->needs_swap) { - unsigned int i; /* * feature bitmap is declared as an array of unsigned longs -- * not good since its size can differ between the host that @@ -1958,14 +1957,17 @@ int perf_file_header__read(struct perf_file_header *header, * file), punt and fallback to the original behavior -- * clearing all feature bits and setting buildid. */ - for (i = 0; i < BITS_TO_LONGS(HEADER_FEAT_BITS); ++i) - header->adds_features[i] = bswap_64(header->adds_features[i]); + mem_bswap_64(&header->adds_features, + BITS_TO_U64(HEADER_FEAT_BITS)); if (!test_bit(HEADER_HOSTNAME, header->adds_features)) { - for (i = 0; i < BITS_TO_LONGS(HEADER_FEAT_BITS); ++i) { - header->adds_features[i] = bswap_64(header->adds_features[i]); - header->adds_features[i] = bswap_32(header->adds_features[i]); - } + /* unswap as u64 */ + mem_bswap_64(&header->adds_features, + BITS_TO_U64(HEADER_FEAT_BITS)); + + /* unswap as u32 */ + mem_bswap_32(&header->adds_features, + BITS_TO_U32(HEADER_FEAT_BITS)); } if (!test_bit(HEADER_HOSTNAME, header->adds_features)) { diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h index f1584833bd22..587a230d2075 100644 --- a/tools/perf/util/include/linux/bitops.h +++ b/tools/perf/util/include/linux/bitops.h @@ -8,6 +8,8 @@ #define BITS_PER_LONG __WORDSIZE #define BITS_PER_BYTE 8 #define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long)) +#define BITS_TO_U64(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u64)) +#define BITS_TO_U32(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(u32)) #define for_each_set_bit(bit, addr, size) \ for ((bit) = find_first_bit((addr), (size)); \ diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index 2600916efa83..c3e399bcf18d 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -442,6 +442,16 @@ static void perf_tool__fill_defaults(struct perf_tool *tool) tool->finished_round = process_finished_round_stub; } } + +void mem_bswap_32(void *src, int byte_size) +{ + u32 *m = src; + while (byte_size > 0) { + *m = bswap_32(*m); + byte_size -= sizeof(u32); + ++m; + } +} void mem_bswap_64(void *src, int byte_size) { diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h index 7a5434c00565..0c702e3f0a36 100644 --- a/tools/perf/util/session.h +++ b/tools/perf/util/session.h @@ -80,6 +80,7 @@ struct branch_info *machine__resolve_bstack(struct machine *self, bool perf_session__has_traces(struct perf_session *self, const char *msg); void mem_bswap_64(void *src, int byte_size); +void mem_bswap_32(void *src, int byte_size); void perf_event__attr_swap(struct perf_event_attr *attr); int perf_session__create_kernel_maps(struct perf_session *self); -- cgit v1.2.3-59-g8ed1b From fc3e4d077d5c7a7bc1ad5bc143895b4e070e5a8b Mon Sep 17 00:00:00 2001 From: Stephane Eranian Date: Tue, 15 May 2012 13:11:11 +0200 Subject: perf stat: Fix default output file The following commit: commit 56f3bae70638b33477a6015fd362ccfe354fd3ee Author: Jim Cromie Date: Wed Sep 7 17:14:00 2011 -0600 perf stat: Add --log-fd option to redirect stderr elsewhere introduced a bug in the way perf stat outputs the results by default, i.e., without the --log-fd or --output option. It would default to writing to file descriptor 0, i.e., stdin. Writing to stdin is allowed and is equivalent to writing to stdout. However, there is a major difference for any script that was already capturing the output of perf stat via redirection: perf stat >/tmp/log .... or perf stat 2>/tmp/log .... They would not capture anything anymore. They would have to do: perf stat 0>/tmp/log ... This breaks compatibility with existing scripts and does not look very natural. This patch fixes the problem by looking at output_fd only when it was modified by user (> 0). It also checks that the value if positive. Passing --log-fd 0 is ignored. I would also argue that defaulting to stderr for the results is not the right thing to do, though this patch does not address this specific issue. Signed-off-by: Stephane Eranian Cc: David Ahern Cc: Ingo Molnar Cc: Peter Zijlstra Cc: Jim Cromie Link: http://lkml.kernel.org/r/20120515111111.GA9870@quad Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/builtin-stat.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c index 262589991ea4..07b5c7703dd1 100644 --- a/tools/perf/builtin-stat.c +++ b/tools/perf/builtin-stat.c @@ -1179,6 +1179,12 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used) fprintf(stderr, "cannot use both --output and --log-fd\n"); usage_with_options(stat_usage, options); } + + if (output_fd < 0) { + fprintf(stderr, "argument to --log-fd must be a > 0\n"); + usage_with_options(stat_usage, options); + } + if (!output) { struct timespec tm; mode = append_file ? "a" : "w"; @@ -1190,7 +1196,7 @@ int cmd_stat(int argc, const char **argv, const char *prefix __used) } clock_gettime(CLOCK_REALTIME, &tm); fprintf(output, "# started on %s\n", ctime(&tm.tv_sec)); - } else if (output_fd != 2) { + } else if (output_fd > 0) { mode = append_file ? "a" : "w"; output = fdopen(output_fd, mode); if (!output) { -- cgit v1.2.3-59-g8ed1b From e35fca4791fcdd43dc1fd769797df40c562ab491 Mon Sep 17 00:00:00 2001 From: Chen Gong Date: Tue, 8 May 2012 20:40:12 -0300 Subject: edac: avoid mce decoding crash after edac driver unloaded Some edac drivers register themselves as mce decoders via notifier_chain. But in current notifier_chain implementation logic, it doesn't accept same notifier registered twice. If so, it will be wrong when adding/removing the element from the list. For example, on one SandyBridge platform, remove module sb_edac and then trigger one error, it will hit oops because it has no mce decoder registered but related notifier_chain still points to an invalid callback function. Here is an example: Call Trace: [] atomic_notifier_call_chain+0x1a/0x20 [] mce_log+0x46/0x180 [] apei_mce_report_mem_error+0x4a/0x60 [] ghes_do_proc+0x192/0x210 [] ghes_proc+0x46/0x70 [] ghes_notify_sci+0x48/0x80 [] notifier_call_chain+0x55/0x80 [] __blocking_notifier_call_chain+0x5a/0x80 [] ? acpi_os_wait_events_complete+0x23/0x23 [] blocking_notifier_call_chain+0x16/0x20 [] acpi_hed_notify+0x19/0x1b [] acpi_device_notify+0x19/0x1b [] acpi_ev_notify_dispatch+0x67/0x7f [] acpi_os_execute_deferred+0x29/0x36 [] process_one_work+0x132/0x450 [] worker_thread+0x17b/0x3c0 [] ? manage_workers+0x120/0x120 [] kthread+0x9e/0xb0 [] kernel_thread_helper+0x4/0x10 [] ? kthread_freezable_should_stop+0x70/0x70 [] ? gs_change+0x13/0x13 Code: f3 49 89 d4 45 85 ed 4d 89 c6 48 8b 0f 74 48 48 85 c9 75 17 eb 41 0f 1f 80 00 00 00 00 41 83 ed 01 4c 89 f9 74 22 4d 85 ff 74 1d <4c> 8b 79 08 4c 89 e2 48 89 de 48 89 cf ff 11 4d 85 f6 74 04 41 RIP [] notifier_call_chain+0x46/0x80 RSP CR2: ffffffffa01af838 ---[ end trace 0100930068e73e6f ]--- BUG: unable to handle kernel paging request at fffffffffffffff8 IP: [] kthread_data+0x10/0x20 PGD 1a0d067 PUD 1a0e067 PMD 0 Oops: 0000 [#2] SMP Only i7core_edac and sb_edac have such issues because they have more than one memory controller which means they have to register mce decoder many times. Cc: # 3.2 and upper Signed-off-by: Chen Gong Signed-off-by: Mauro Carvalho Chehab --- drivers/edac/i7core_edac.c | 15 ++++----------- drivers/edac/sb_edac.c | 8 ++++---- 2 files changed, 8 insertions(+), 15 deletions(-) diff --git a/drivers/edac/i7core_edac.c b/drivers/edac/i7core_edac.c index d27778f65a5d..a499c7ed820a 100644 --- a/drivers/edac/i7core_edac.c +++ b/drivers/edac/i7core_edac.c @@ -1814,12 +1814,6 @@ static int i7core_mce_check_error(struct notifier_block *nb, unsigned long val, if (mce->bank != 8) return NOTIFY_DONE; -#ifdef CONFIG_SMP - /* Only handle if it is the right mc controller */ - if (mce->socketid != pvt->i7core_dev->socket) - return NOTIFY_DONE; -#endif - smp_rmb(); if ((pvt->mce_out + 1) % MCE_LOG_LEN == pvt->mce_in) { smp_wmb(); @@ -2116,8 +2110,6 @@ static void i7core_unregister_mci(struct i7core_dev *i7core_dev) if (pvt->enable_scrub) disable_sdram_scrub_setting(mci); - mce_unregister_decode_chain(&i7_mce_dec); - /* Disable EDAC polling */ i7core_pci_ctl_release(pvt); @@ -2222,8 +2214,6 @@ static int i7core_register_mci(struct i7core_dev *i7core_dev) /* DCLK for scrub rate setting */ pvt->dclk_freq = get_dclk_freq(); - mce_register_decode_chain(&i7_mce_dec); - return 0; fail0: @@ -2367,8 +2357,10 @@ static int __init i7core_init(void) pci_rc = pci_register_driver(&i7core_driver); - if (pci_rc >= 0) + if (pci_rc >= 0) { + mce_register_decode_chain(&i7_mce_dec); return 0; + } i7core_printk(KERN_ERR, "Failed to register device with error %d.\n", pci_rc); @@ -2384,6 +2376,7 @@ static void __exit i7core_exit(void) { debugf2("MC: " __FILE__ ": %s()\n", __func__); pci_unregister_driver(&i7core_driver); + mce_unregister_decode_chain(&i7_mce_dec); } module_init(i7core_init); diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c index 4adaf4b7da99..a21ace0b709d 100644 --- a/drivers/edac/sb_edac.c +++ b/drivers/edac/sb_edac.c @@ -1604,8 +1604,6 @@ static void sbridge_unregister_mci(struct sbridge_dev *sbridge_dev) debugf0("MC: " __FILE__ ": %s(): mci = %p, dev = %p\n", __func__, mci, &sbridge_dev->pdev[0]->dev); - mce_unregister_decode_chain(&sbridge_mce_dec); - /* Remove MC sysfs nodes */ edac_mc_del_mc(mci->dev); @@ -1682,7 +1680,6 @@ static int sbridge_register_mci(struct sbridge_dev *sbridge_dev) goto fail0; } - mce_register_decode_chain(&sbridge_mce_dec); return 0; fail0: @@ -1811,8 +1808,10 @@ static int __init sbridge_init(void) pci_rc = pci_register_driver(&sbridge_driver); - if (pci_rc >= 0) + if (pci_rc >= 0) { + mce_register_decode_chain(&sbridge_mce_dec); return 0; + } sbridge_printk(KERN_ERR, "Failed to register device with error %d.\n", pci_rc); @@ -1828,6 +1827,7 @@ static void __exit sbridge_exit(void) { debugf2("MC: " __FILE__ ": %s()\n", __func__); pci_unregister_driver(&sbridge_driver); + mce_unregister_decode_chain(&sbridge_mce_dec); } module_init(sbridge_init); -- cgit v1.2.3-59-g8ed1b From 2cbb587d3bc41a305168e91b4f3c5b6944a12566 Mon Sep 17 00:00:00 2001 From: Chen Gong Date: Mon, 14 May 2012 05:51:26 -0300 Subject: edac: fix the error about memory type detection on SandyBridge On SandyBridge, DDRIOA(Dev: 17 Func: 0 Offset: 328) is used to detect whether DIMM is RDIMM/LRDIMM, not TA(Dev: 15 Func: 0). Signed-off-by: Chen Gong Signed-off-by: Mauro Carvalho Chehab --- drivers/edac/sb_edac.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c index a21ace0b709d..36ad17e79d61 100644 --- a/drivers/edac/sb_edac.c +++ b/drivers/edac/sb_edac.c @@ -555,7 +555,7 @@ static int get_dimm_config(struct mem_ctl_info *mci) pvt->is_close_pg = false; } - pci_read_config_dword(pvt->pci_ta, RANK_CFG_A, ®); + pci_read_config_dword(pvt->pci_ddrio, RANK_CFG_A, ®); if (IS_RDIMM_ENABLED(reg)) { /* FIXME: Can also be LRDIMM */ debugf0("Memory is registered\n"); -- cgit v1.2.3-59-g8ed1b From b9bc5ddb1b76d3f7ee14c533300aa95907c6969e Mon Sep 17 00:00:00 2001 From: Kim Phillips Date: Wed, 6 Jun 2012 19:49:42 -0500 Subject: mpc85xx_edac: fix error: too few arguments to function 'edac_mc_alloc' commit ca0907b "edac: Remove the legacy EDAC ABI" broke mpc85xx_edac in the following manner: mpc85xx_edac.c:983:35: error: too few arguments to function 'edac_mc_alloc' this patch puts back the missing 'layers' argument. [mchehab@redhat.com: As Ben sent a similar fix, I added his SOB on this patch] Signed-off-by: Kim Phillips Signed-off-by: Ben Collins Signed-off-by: Mauro Carvalho Chehab --- drivers/edac/mpc85xx_edac.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/edac/mpc85xx_edac.c b/drivers/edac/mpc85xx_edac.c index 4c402353ba98..0e374625f6f8 100644 --- a/drivers/edac/mpc85xx_edac.c +++ b/drivers/edac/mpc85xx_edac.c @@ -980,7 +980,8 @@ static int __devinit mpc85xx_mc_err_probe(struct platform_device *op) layers[1].type = EDAC_MC_LAYER_CHANNEL; layers[1].size = 1; layers[1].is_virt_csrow = false; - mci = edac_mc_alloc(edac_mc_idx, ARRAY_SIZE(layers), sizeof(*pdata)); + mci = edac_mc_alloc(edac_mc_idx, ARRAY_SIZE(layers), layers, + sizeof(*pdata)); if (!mci) { devres_release_group(&op->dev, mpc85xx_mc_err_probe); return -ENOMEM; -- cgit v1.2.3-59-g8ed1b From 5fcb08befaf57faa1b00e514915c1660252b8c26 Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Mon, 11 Jun 2012 10:18:13 -0500 Subject: 9p: BUG before corrupting memory The BUG_ON() in pack_sg_list() would get triggered only one time after we've corrupted some memory by sg_set_buf() into an invalid sg buffer. I'm still working on figuring out why I manage to trigger that bug... Signed-off-by: Sasha Levin Signed-off-by: Eric Van Hensbergen --- net/9p/trans_virtio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c index 5af18d11b518..2a167658bb95 100644 --- a/net/9p/trans_virtio.c +++ b/net/9p/trans_virtio.c @@ -192,10 +192,10 @@ static int pack_sg_list(struct scatterlist *sg, int start, s = rest_of_page(data); if (s > count) s = count; + BUG_ON(index > limit); sg_set_buf(&sg[index++], data, s); count -= s; data += s; - BUG_ON(index > limit); } return index-start; -- cgit v1.2.3-59-g8ed1b From afb6a6a01b51b6712485ea045e2b882061d250d9 Mon Sep 17 00:00:00 2001 From: Andy Gross Date: Thu, 24 May 2012 11:44:22 -0500 Subject: staging: omapdrm: fix crash when freeing bad fb During unload, don't cleanup the framebuffer if it is not valid. Signed-off-by: Andy Gross Reviewed-by: Rob Clark Signed-off-by: Greg Kroah-Hartman --- drivers/staging/omapdrm/omap_fbdev.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/staging/omapdrm/omap_fbdev.c b/drivers/staging/omapdrm/omap_fbdev.c index 11acd4c35ed2..8c6ed3b0c6f6 100644 --- a/drivers/staging/omapdrm/omap_fbdev.c +++ b/drivers/staging/omapdrm/omap_fbdev.c @@ -208,7 +208,8 @@ static int omap_fbdev_create(struct drm_fb_helper *helper, */ ret = omap_gem_get_paddr(fbdev->bo, &paddr, true); if (ret) { - dev_err(dev->dev, "could not map (paddr)!\n"); + dev_err(dev->dev, + "could not map (paddr)! Skipping framebuffer alloc\n"); ret = -ENOMEM; goto fail; } @@ -388,8 +389,11 @@ void omap_fbdev_free(struct drm_device *dev) fbi = helper->fbdev; - unregister_framebuffer(fbi); - framebuffer_release(fbi); + /* only cleanup framebuffer if it is present */ + if (fbi) { + unregister_framebuffer(fbi); + framebuffer_release(fbi); + } drm_fb_helper_fini(helper); -- cgit v1.2.3-59-g8ed1b From 8447c4d15e357a458c9051ddc84aa6c8b9c27000 Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Wed, 6 Jun 2012 13:11:05 -0400 Subject: edac: Do alignment logic properly in edac_align_ptr() The logic was checking the sizeof the structure being allocated to determine whether an alignment fixup was required. This isn't right; what we actually care about is the alignment of the actual pointer that's about to be returned. This became an issue recently because struct edac_mc_layer has a size that is not zero modulo eight, so we were taking the correctly-aligned pointer and forcing it to be misaligned. On Tile this caused an alignment exception. Signed-off-by: Chris Metcalf Signed-off-by: Mauro Carvalho Chehab --- drivers/edac/edac_mc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c index 10f375032e96..de5ba86e8b89 100644 --- a/drivers/edac/edac_mc.c +++ b/drivers/edac/edac_mc.c @@ -164,7 +164,7 @@ void *edac_align_ptr(void **p, unsigned size, int n_elems) else return (char *)ptr; - r = size % align; + r = (unsigned long)p % align; if (r == 0) return (char *)ptr; -- cgit v1.2.3-59-g8ed1b From 6ab6827ee99937834cc268298ee4eab1a651569e Mon Sep 17 00:00:00 2001 From: Parav Pandit Date: Fri, 8 Jun 2012 21:25:25 +0530 Subject: RDMA/ocrdma: Fixed GID table for vlan and events 1. Fix reporting GID table addition events. 2. Enable vlan based GID entries only when VLAN is enabled at compile time (test CONFIG_VLAN_8021Q / CONFIG_VLAN_8021Q_MODULE). Signed-off-by: Parav Pandit Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ocrdma/ocrdma_main.c | 63 ++++++++++++++++-------------- 1 file changed, 34 insertions(+), 29 deletions(-) diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_main.c b/drivers/infiniband/hw/ocrdma/ocrdma_main.c index 04fef3de6d75..b050e629e9c3 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_main.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_main.c @@ -97,13 +97,11 @@ static void ocrdma_build_sgid_mac(union ib_gid *sgid, unsigned char *mac_addr, sgid->raw[15] = mac_addr[5]; } -static void ocrdma_add_sgid(struct ocrdma_dev *dev, unsigned char *mac_addr, +static bool ocrdma_add_sgid(struct ocrdma_dev *dev, unsigned char *mac_addr, bool is_vlan, u16 vlan_id) { int i; - bool found = false; union ib_gid new_sgid; - int free_idx = OCRDMA_MAX_SGID; unsigned long flags; memset(&ocrdma_zero_sgid, 0, sizeof(union ib_gid)); @@ -115,23 +113,19 @@ static void ocrdma_add_sgid(struct ocrdma_dev *dev, unsigned char *mac_addr, if (!memcmp(&dev->sgid_tbl[i], &ocrdma_zero_sgid, sizeof(union ib_gid))) { /* found free entry */ - if (!found) { - free_idx = i; - found = true; - break; - } + memcpy(&dev->sgid_tbl[i], &new_sgid, + sizeof(union ib_gid)); + spin_unlock_irqrestore(&dev->sgid_lock, flags); + return true; } else if (!memcmp(&dev->sgid_tbl[i], &new_sgid, sizeof(union ib_gid))) { /* entry already present, no addition is required. */ spin_unlock_irqrestore(&dev->sgid_lock, flags); - return; + return false; } } - /* if entry doesn't exist and if table has some space, add entry */ - if (found) - memcpy(&dev->sgid_tbl[free_idx], &new_sgid, - sizeof(union ib_gid)); spin_unlock_irqrestore(&dev->sgid_lock, flags); + return false; } static bool ocrdma_del_sgid(struct ocrdma_dev *dev, unsigned char *mac_addr, @@ -167,7 +161,8 @@ static void ocrdma_add_default_sgid(struct ocrdma_dev *dev) ocrdma_get_guid(dev, &sgid->raw[8]); } -static int ocrdma_build_sgid_tbl(struct ocrdma_dev *dev) +#if defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) +static void ocrdma_add_vlan_sgids(struct ocrdma_dev *dev) { struct net_device *netdev, *tmp; u16 vlan_id; @@ -175,8 +170,6 @@ static int ocrdma_build_sgid_tbl(struct ocrdma_dev *dev) netdev = dev->nic_info.netdev; - ocrdma_add_default_sgid(dev); - rcu_read_lock(); for_each_netdev_rcu(&init_net, tmp) { if (netdev == tmp || vlan_dev_real_dev(tmp) == netdev) { @@ -194,10 +187,23 @@ static int ocrdma_build_sgid_tbl(struct ocrdma_dev *dev) } } rcu_read_unlock(); +} +#else +static void ocrdma_add_vlan_sgids(struct ocrdma_dev *dev) +{ + +} +#endif /* VLAN */ + +static int ocrdma_build_sgid_tbl(struct ocrdma_dev *dev) +{ + ocrdma_add_default_sgid(dev); + ocrdma_add_vlan_sgids(dev); return 0; } -#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) +#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE) || \ +defined(CONFIG_VLAN_8021Q) || defined(CONFIG_VLAN_8021Q_MODULE) static int ocrdma_inet6addr_event(struct notifier_block *notifier, unsigned long event, void *ptr) @@ -208,6 +214,7 @@ static int ocrdma_inet6addr_event(struct notifier_block *notifier, struct ib_event gid_event; struct ocrdma_dev *dev; bool found = false; + bool updated = false; bool is_vlan = false; u16 vid = 0; @@ -233,23 +240,21 @@ static int ocrdma_inet6addr_event(struct notifier_block *notifier, mutex_lock(&dev->dev_lock); switch (event) { case NETDEV_UP: - ocrdma_add_sgid(dev, netdev->dev_addr, is_vlan, vid); + updated = ocrdma_add_sgid(dev, netdev->dev_addr, is_vlan, vid); break; case NETDEV_DOWN: - found = ocrdma_del_sgid(dev, netdev->dev_addr, is_vlan, vid); - if (found) { - /* found the matching entry, notify - * the consumers about it - */ - gid_event.device = &dev->ibdev; - gid_event.element.port_num = 1; - gid_event.event = IB_EVENT_GID_CHANGE; - ib_dispatch_event(&gid_event); - } + updated = ocrdma_del_sgid(dev, netdev->dev_addr, is_vlan, vid); break; default: break; } + if (updated) { + /* GID table updated, notify the consumers about it */ + gid_event.device = &dev->ibdev; + gid_event.element.port_num = 1; + gid_event.event = IB_EVENT_GID_CHANGE; + ib_dispatch_event(&gid_event); + } mutex_unlock(&dev->dev_lock); return NOTIFY_OK; } @@ -258,7 +263,7 @@ static struct notifier_block ocrdma_inet6addr_notifier = { .notifier_call = ocrdma_inet6addr_event }; -#endif /* IPV6 */ +#endif /* IPV6 and VLAN */ static enum rdma_link_layer ocrdma_link_layer(struct ib_device *device, u8 port_num) -- cgit v1.2.3-59-g8ed1b From 07bb54244e466f1517357f47a498574f97c31e08 Mon Sep 17 00:00:00 2001 From: Mahesh Vardhamanaiah Date: Fri, 8 Jun 2012 21:25:52 +0530 Subject: RDMA/ocrdma: Correct reported max queue sizes Fix code to read the max wqe and max rqe values from mailbox response. Signed-off-by: Mahesh Vardhamanaiah Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ocrdma/ocrdma_hw.c | 15 +++++---------- drivers/infiniband/hw/ocrdma/ocrdma_sli.h | 2 +- 2 files changed, 6 insertions(+), 11 deletions(-) diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c index 9343a1522977..7507968deb2c 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c @@ -990,8 +990,6 @@ static void ocrdma_get_attr(struct ocrdma_dev *dev, struct ocrdma_dev_attr *attr, struct ocrdma_mbx_query_config *rsp) { - int max_q_mem; - attr->max_pd = (rsp->max_pd_ca_ack_delay & OCRDMA_MBX_QUERY_CFG_MAX_PD_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_PD_SHIFT; @@ -1037,18 +1035,15 @@ static void ocrdma_get_attr(struct ocrdma_dev *dev, attr->max_inline_data = attr->wqe_size - (sizeof(struct ocrdma_hdr_wqe) + sizeof(struct ocrdma_sge)); - max_q_mem = OCRDMA_Q_PAGE_BASE_SIZE << (OCRDMA_MAX_Q_PAGE_SIZE_CNT - 1); - /* hw can queue one less then the configured size, - * so publish less by one to stack. - */ if (dev->nic_info.dev_family == OCRDMA_GEN2_FAMILY) { - dev->attr.max_wqe = max_q_mem / dev->attr.wqe_size; attr->ird = 1; attr->ird_page_size = OCRDMA_MIN_Q_PAGE_SIZE; attr->num_ird_pages = MAX_OCRDMA_IRD_PAGES; - } else - dev->attr.max_wqe = (max_q_mem / dev->attr.wqe_size) - 1; - dev->attr.max_rqe = (max_q_mem / dev->attr.rqe_size) - 1; + } + dev->attr.max_wqe = rsp->max_wqes_rqes_per_q >> + OCRDMA_MBX_QUERY_CFG_MAX_WQES_PER_WQ_OFFSET; + dev->attr.max_rqe = rsp->max_wqes_rqes_per_q & + OCRDMA_MBX_QUERY_CFG_MAX_RQES_PER_RQ_MASK; } static int ocrdma_check_fw_config(struct ocrdma_dev *dev, diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_sli.h b/drivers/infiniband/hw/ocrdma/ocrdma_sli.h index 7fd80cc0f037..84114416ce7c 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_sli.h +++ b/drivers/infiniband/hw/ocrdma/ocrdma_sli.h @@ -458,7 +458,7 @@ enum { OCRDMA_MBX_QUERY_CFG_MAX_WQES_PER_WQ_OFFSET, OCRDMA_MBX_QUERY_CFG_MAX_RQES_PER_RQ_OFFSET = 0, OCRDMA_MBX_QUERY_CFG_MAX_RQES_PER_RQ_MASK = 0xFFFF << - OCRDMA_MBX_QUERY_CFG_MAX_WQES_PER_WQ_OFFSET, + OCRDMA_MBX_QUERY_CFG_MAX_RQES_PER_RQ_OFFSET, OCRDMA_MBX_QUERY_CFG_MAX_CQ_OFFSET = 16, OCRDMA_MBX_QUERY_CFG_MAX_CQ_MASK = 0xFFFF << -- cgit v1.2.3-59-g8ed1b From 634c5796a5c60964faf9d51892571ffe36ad24d5 Mon Sep 17 00:00:00 2001 From: Mahesh Vardhamanaiah Date: Fri, 8 Jun 2012 21:26:11 +0530 Subject: RDMA/ocrdma: Correct queue SGE calculation Fix max sge calculation for sq, rq, srq for all hardware types. Signed-off-by: Mahesh Vardhamanaiah Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ocrdma/ocrdma.h | 1 + drivers/infiniband/hw/ocrdma/ocrdma_hw.c | 3 +++ drivers/infiniband/hw/ocrdma/ocrdma_sli.h | 3 +++ drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 6 +++--- 4 files changed, 10 insertions(+), 3 deletions(-) diff --git a/drivers/infiniband/hw/ocrdma/ocrdma.h b/drivers/infiniband/hw/ocrdma/ocrdma.h index 037f5cea85bd..48970af23679 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma.h +++ b/drivers/infiniband/hw/ocrdma/ocrdma.h @@ -61,6 +61,7 @@ struct ocrdma_dev_attr { u32 max_inline_data; int max_send_sge; int max_recv_sge; + int max_srq_sge; int max_mr; u64 max_mr_size; u32 max_num_mr_pbl; diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c index 7507968deb2c..71942af4fce9 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c @@ -1002,6 +1002,9 @@ static void ocrdma_get_attr(struct ocrdma_dev *dev, attr->max_recv_sge = (rsp->max_write_send_sge & OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_SHIFT; + attr->max_srq_sge = (rsp->max_srq_rqe_sge & + OCRDMA_MBX_QUERY_CFG_MAX_SRQ_SGE_MASK) >> + OCRDMA_MBX_QUERY_CFG_MAX_SRQ_SGE_OFFSET; attr->max_ord_per_qp = (rsp->max_ird_ord_per_qp & OCRDMA_MBX_QUERY_CFG_MAX_ORD_PER_QP_MASK) >> OCRDMA_MBX_QUERY_CFG_MAX_ORD_PER_QP_SHIFT; diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_sli.h b/drivers/infiniband/hw/ocrdma/ocrdma_sli.h index 84114416ce7c..c75cbdfa87e7 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_sli.h +++ b/drivers/infiniband/hw/ocrdma/ocrdma_sli.h @@ -418,6 +418,9 @@ enum { OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_SHIFT = 0, OCRDMA_MBX_QUERY_CFG_MAX_SEND_SGE_MASK = 0xFFFF, + OCRDMA_MBX_QUERY_CFG_MAX_WRITE_SGE_SHIFT = 16, + OCRDMA_MBX_QUERY_CFG_MAX_WRITE_SGE_MASK = 0xFFFF << + OCRDMA_MBX_QUERY_CFG_MAX_WRITE_SGE_SHIFT, OCRDMA_MBX_QUERY_CFG_MAX_ORD_PER_QP_SHIFT = 0, OCRDMA_MBX_QUERY_CFG_MAX_ORD_PER_QP_MASK = 0xFFFF, diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c index d16d172b6b6b..0e88088545ac 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c @@ -83,8 +83,8 @@ int ocrdma_query_device(struct ib_device *ibdev, struct ib_device_attr *attr) IB_DEVICE_SHUTDOWN_PORT | IB_DEVICE_SYS_IMAGE_GUID | IB_DEVICE_LOCAL_DMA_LKEY; - attr->max_sge = dev->attr.max_send_sge; - attr->max_sge_rd = dev->attr.max_send_sge; + attr->max_sge = min(dev->attr.max_send_sge, dev->attr.max_srq_sge); + attr->max_sge_rd = 0; attr->max_cq = dev->attr.max_cq; attr->max_cqe = dev->attr.max_cqe; attr->max_mr = dev->attr.max_mr; @@ -97,7 +97,7 @@ int ocrdma_query_device(struct ib_device *ibdev, struct ib_device_attr *attr) min(dev->attr.max_ord_per_qp, dev->attr.max_ird_per_qp); attr->max_qp_init_rd_atom = dev->attr.max_ord_per_qp; attr->max_srq = (dev->attr.max_qp - 1); - attr->max_srq_sge = attr->max_sge; + attr->max_srq_sge = attr->max_srq_sge; attr->max_srq_wr = dev->attr.max_rqe; attr->local_ca_ack_delay = dev->attr.local_ca_ack_delay; attr->max_fast_reg_page_list_len = 0; -- cgit v1.2.3-59-g8ed1b From a3698a9b919d2a54e3348be48ab65d102b2f105d Mon Sep 17 00:00:00 2001 From: Parav Pandit Date: Mon, 11 Jun 2012 16:39:20 +0530 Subject: RDMA/ocrdma: Fixed RQ error CQE polling Fix RQ/SRQ error CQE polling. Return error CQE to consumer for error case which was not returned previously. Signed-off-by: Parav Pandit Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c index 0e88088545ac..d55d459b7fc8 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c @@ -2301,8 +2301,10 @@ static bool ocrdma_poll_err_rcqe(struct ocrdma_qp *qp, struct ocrdma_cqe *cqe, *stop = true; expand = false; } - } else + } else { + *polled = true; expand = ocrdma_update_err_rcqe(ibwc, cqe, qp, status); + } return expand; } -- cgit v1.2.3-59-g8ed1b From af03891f61d7b69eebc79d07bf580faaa9636fbc Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Thu, 31 May 2012 18:51:05 -0300 Subject: [media] v4l: Correct create_bufs documentation Patch id 6016af82eafcb6e086a8f2a2197b46029a843d68 ("[media] v4l2: use __u32 rather than enums in ioctl() structs") unintentionally changes the type of the format field in struct v4l2_create_buffers from struct v4l2_format to __u32. Revert that change. Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/vidioc-create-bufs.xml | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml b/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml index 765549ff8a71..7cf3116c2cc5 100644 --- a/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml +++ b/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml @@ -108,10 +108,9 @@ information. /> - __u32 + &v4l2-format; format - Filled in by the application, preserved by the driver. - See . + Filled in by the application, preserved by the driver. __u32 -- cgit v1.2.3-59-g8ed1b From d9762df4a9d0e412b6676a96135323d6924406b8 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 6 Jun 2012 02:17:16 -0300 Subject: [media] Fix vivi regression This patch fixes a regression introduced by commit 5126f2590bee412e3053de851cb07f531e4be36a: [media] v4l2-dev: add flag to have the core lock all file operations I forgot to add the locks to the vivi read operation. Regards, Hans Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/vivi.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/vivi.c b/drivers/media/video/vivi.c index 0960d7f0d394..08c10240e70f 100644 --- a/drivers/media/video/vivi.c +++ b/drivers/media/video/vivi.c @@ -1149,10 +1149,14 @@ static ssize_t vivi_read(struct file *file, char __user *data, size_t count, loff_t *ppos) { struct vivi_dev *dev = video_drvdata(file); + int err; dprintk(dev, 1, "read called\n"); - return vb2_read(&dev->vb_vidq, data, count, ppos, + mutex_lock(&dev->mutex); + err = vb2_read(&dev->vb_vidq, data, count, ppos, file->f_flags & O_NONBLOCK); + mutex_unlock(&dev->mutex); + return err; } static unsigned int -- cgit v1.2.3-59-g8ed1b From 2031b4c2b4904f7448ab9e4bc6b9bf16e32709f5 Mon Sep 17 00:00:00 2001 From: Mohammed Shafi Shajakhan Date: Wed, 6 Jun 2012 10:33:10 +0530 Subject: ath9k: Fix a WARNING on suspend/resume with IBSS this patch is dependent on the patch "cfg80211: fix interface combinations" In ath9k currently we have ADHOC interface as a single incompatible interface. when drv_add_interface is called during resume we got to consider number of vifs already present in addition to checking the drivers 'opmode' information about ADHOC. we incorrectly assume an ADHOC interface is already present. Then we may miss some driver specific data for the ADHOC interface after resume. The above mentioned checks can be removed from the driver, as the patch 'cfg80211: fix interface combinations' ensures that if an interface type is not advertised by the driver in any of the interface combinations(via ieee80211_iface_combination) then it shall be treated as a single incompatible interface. Fixes the following warning on suspend/resume with ibss interface. ath: phy0: Cannot create ADHOC interface when other interfaces already exist. WARNING: at net/mac80211/driver-ops.h:12 ieee80211_reconfig+0x1882/0x1ca0 [mac80211]() Hardware name: 2842RK1 wlan2: Failed check-sdata-in-driver check, flags: 0x0 Call Trace: [] warn_slowpath_common+0x72/0xa0 [] ? ieee80211_reconfig+0x1882/0x1ca0 [mac80211] [] ? ieee80211_reconfig+0x1882/0x1ca0 [mac80211] [] warn_slowpath_fmt+0x33/0x40 [] ieee80211_reconfig+0x1882/0x1ca0 [mac80211] [] ? mutex_lock_nested+0x23a/0x2f0 [] ieee80211_resume+0x27/0x70 [mac80211] [] wiphy_resume+0x8f/0xa0 [cfg80211] Cc: stable@vger.kernel.org Cc: Rajkumar Manoharan Signed-off-by: Mohammed Shafi Shajakhan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/main.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 4de4473776ac..08506f190f27 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1443,15 +1443,6 @@ static int ath9k_add_interface(struct ieee80211_hw *hw, } } - if ((ah->opmode == NL80211_IFTYPE_ADHOC) || - ((vif->type == NL80211_IFTYPE_ADHOC) && - sc->nvifs > 0)) { - ath_err(common, "Cannot create ADHOC interface when other" - " interfaces already exist.\n"); - ret = -EINVAL; - goto out; - } - ath_dbg(common, CONFIG, "Attach a VIF of type: %d\n", vif->type); sc->nvifs++; -- cgit v1.2.3-59-g8ed1b From a23415fd7ed4bfa8e203ecf141d43da7180193af Mon Sep 17 00:00:00 2001 From: Mohammed Shafi Shajakhan Date: Wed, 6 Jun 2012 10:33:42 +0530 Subject: ath9k: remove incompatible IBSS interface check in change_iface 'cfg80211: fix interface combinations' ensures that if an interface type is not advertised by the driver in any of the interface combinations (via ieee80211_iface_combination) then it shall be treated as a single incompatible interface. if there are more than one interfaces present and changing them to incompatible interface type is not possible. These checks will be properly handled by cfg80211_change_iface -> cfg80211_can_change_interface. this patch is dependent on 'cfg80211: fix interface combinations' Signed-off-by: Mohammed Shafi Shajakhan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/main.c | 9 --------- 1 file changed, 9 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index 08506f190f27..ac41f1e3ab9f 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -1467,15 +1467,6 @@ static int ath9k_change_interface(struct ieee80211_hw *hw, mutex_lock(&sc->mutex); ath9k_ps_wakeup(sc); - /* See if new interface type is valid. */ - if ((new_type == NL80211_IFTYPE_ADHOC) && - (sc->nvifs > 1)) { - ath_err(common, "When using ADHOC, it must be the only" - " interface.\n"); - ret = -EINVAL; - goto out; - } - if (ath9k_uses_beacons(new_type) && !ath9k_uses_beacons(vif->type)) { if (sc->nbcnvifs >= ATH_BCBUF) { -- cgit v1.2.3-59-g8ed1b From b0fd49b7d7599dc87402df13ab6e571e2222601f Mon Sep 17 00:00:00 2001 From: Jussi Kivilinna Date: Sat, 9 Jun 2012 18:45:20 +0300 Subject: rndis_wlan: fix matching bssid check in rndis_check_bssid_list() rndis_check_bssid_list() originally tried to check if bssid->mac and match_bssid are equal using compare_ether_addr() when it should use !compare_ether_addr(). This check was added by commit b5257c952dda24df7078c74b7b811b44c6e49206 as part of workaround for hardware issue. Commit 2e42e4747ea72943c21551d8a206b51a9893b1e0 that replaced compare_ether_addr with ether_addr_equal relieved that this compare to be inverse of what it should be. Compare was added as response to hardware bug, where bssid-list does not contain BSSID and other information of currently connected AP (spec insists that device must provide this information in the list when connected). Lack bssid-data on current connection then causes WARN_ON somewhere in cfg80211. Workaround was to check if bssid-list returns current bssid and if it does not, manually construct bssid information in other ways. And this workaround worked, with inverse check. Which must mean that when hardware is experiencing the problem, it's actually returning empty bssid-list and this check didn't make any difference for workaround. However inverse check causes workaround be activated when bssid-list returns only entry, currently connected BSSID. That does not cause problems in itself, just slightly more inaccurate information in scan-list. Cc: Joe Perches Cc: David S. Miller Signed-off-by: Jussi Kivilinna Signed-off-by: John W. Linville --- drivers/net/wireless/rndis_wlan.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/rndis_wlan.c b/drivers/net/wireless/rndis_wlan.c index 2e9e6af21362..dfcd02ab6cae 100644 --- a/drivers/net/wireless/rndis_wlan.c +++ b/drivers/net/wireless/rndis_wlan.c @@ -2110,7 +2110,7 @@ resize_buf: while (check_bssid_list_item(bssid, bssid_len, buf, len)) { if (rndis_bss_info_update(usbdev, bssid) && match_bssid && matched) { - if (!ether_addr_equal(bssid->mac, match_bssid)) + if (ether_addr_equal(bssid->mac, match_bssid)) *matched = true; } -- cgit v1.2.3-59-g8ed1b From 1761a110a9c36ad9ba26b104516677ad8cb38a08 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Thu, 7 Jun 2012 11:20:31 -0300 Subject: [media] Fix regression in ioctl numbering Yuck. The VIDIOC_(TRY_)DECODER_CMD ioctls already had ioctl numbers 96 and 97, and after merging the timings API I forgot to continue numbering from 98. So now we have two ioctls with number 96 and two with 97. With the new table-driver ioctl handling in v4l2-ioctl.c it is essential that each ioctl has its own unique number, so let's fix this quickly for 3.5. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- include/linux/videodev2.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/videodev2.h b/include/linux/videodev2.h index 370d11106c11..2039c5d3292e 100644 --- a/include/linux/videodev2.h +++ b/include/linux/videodev2.h @@ -2640,9 +2640,9 @@ struct v4l2_create_buffers { /* Experimental, these three ioctls may change over the next couple of kernel versions. */ -#define VIDIOC_ENUM_DV_TIMINGS _IOWR('V', 96, struct v4l2_enum_dv_timings) -#define VIDIOC_QUERY_DV_TIMINGS _IOR('V', 97, struct v4l2_dv_timings) -#define VIDIOC_DV_TIMINGS_CAP _IOWR('V', 98, struct v4l2_dv_timings_cap) +#define VIDIOC_ENUM_DV_TIMINGS _IOWR('V', 98, struct v4l2_enum_dv_timings) +#define VIDIOC_QUERY_DV_TIMINGS _IOR('V', 99, struct v4l2_dv_timings) +#define VIDIOC_DV_TIMINGS_CAP _IOWR('V', 100, struct v4l2_dv_timings_cap) /* Reminder: when adding new ioctls please add support for them to drivers/media/video/v4l2-compat-ioctl32.c as well! */ -- cgit v1.2.3-59-g8ed1b From 0b5dabedcc9498013d7de2998f0828340657c8a3 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Thu, 7 Jun 2012 12:32:07 -0300 Subject: [media] Fix query/enum_dv_timings regression Now query/enum_dv_timings finally work again. The timings API patches and the core ioctl changes clearly sailed right past each other without realizing that both needed to adapt to the other. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/v4l2-dev.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c index 5ccbd4629f9c..150020805681 100644 --- a/drivers/media/video/v4l2-dev.c +++ b/drivers/media/video/v4l2-dev.c @@ -679,6 +679,8 @@ static void determine_valid_ioctls(struct video_device *vdev) SET_VALID_IOCTL(ops, VIDIOC_QUERY_DV_PRESET, vidioc_query_dv_preset); SET_VALID_IOCTL(ops, VIDIOC_S_DV_TIMINGS, vidioc_s_dv_timings); SET_VALID_IOCTL(ops, VIDIOC_G_DV_TIMINGS, vidioc_g_dv_timings); + SET_VALID_IOCTL(ops, VIDIOC_ENUM_DV_TIMINGS, vidioc_enum_dv_timings); + SET_VALID_IOCTL(ops, VIDIOC_QUERY_DV_TIMINGS, vidioc_query_dv_timings); /* yes, really vidioc_subscribe_event */ SET_VALID_IOCTL(ops, VIDIOC_DQEVENT, vidioc_subscribe_event); SET_VALID_IOCTL(ops, VIDIOC_SUBSCRIBE_EVENT, vidioc_subscribe_event); -- cgit v1.2.3-59-g8ed1b From 87736df2401f51e67e55b8d1e6aac98a7990002b Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 6 Jun 2012 17:48:46 -0300 Subject: [media] V4L2 spec fix Two small docbook fixes: - prepare-buf was not positioned in alphabetical order, moved to the right place. - the format field in create_bufs had the wrong type in the documentation Signed-off-by: Hans Verkuil Reviewed-by: Guennadi Liakhovetski Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/v4l2.xml | 2 +- Documentation/DocBook/media/v4l/vidioc-create-bufs.xml | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/DocBook/media/v4l/v4l2.xml b/Documentation/DocBook/media/v4l/v4l2.xml index 015c561754b7..008c2d73a484 100644 --- a/Documentation/DocBook/media/v4l/v4l2.xml +++ b/Documentation/DocBook/media/v4l/v4l2.xml @@ -560,6 +560,7 @@ and discussions on the V4L mailing list. &sub-g-tuner; &sub-log-status; &sub-overlay; + &sub-prepare-buf; &sub-qbuf; &sub-querybuf; &sub-querycap; @@ -567,7 +568,6 @@ and discussions on the V4L mailing list. &sub-query-dv-preset; &sub-query-dv-timings; &sub-querystd; - &sub-prepare-buf; &sub-reqbufs; &sub-s-hw-freq-seek; &sub-streamon; diff --git a/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml b/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml index 7cf3116c2cc5..a2474ecb574a 100644 --- a/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml +++ b/Documentation/DocBook/media/v4l/vidioc-create-bufs.xml @@ -108,7 +108,7 @@ information. /> - &v4l2-format; + struct v4l2_format format Filled in by the application, preserved by the driver. -- cgit v1.2.3-59-g8ed1b From bffaecc75cc6cbbf1e46571256d7b137df61bff6 Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Mon, 21 May 2012 12:28:14 -0300 Subject: [media] lg2160: fix off-by-one error in lg216x_write_regs Fix an off-by-one error in lg216x_write_regs, causing the last element of the lg216x init block to be ignored. Spotted by Dan Carpenter. Reported-by: Dan Carpenter Signed-off-by: Michael Krufky Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/lg2160.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/dvb/frontends/lg2160.c b/drivers/media/dvb/frontends/lg2160.c index a3ab1a5b6597..cc11260e99df 100644 --- a/drivers/media/dvb/frontends/lg2160.c +++ b/drivers/media/dvb/frontends/lg2160.c @@ -126,7 +126,7 @@ static int lg216x_write_regs(struct lg216x_state *state, lg_reg("writing %d registers...\n", len); - for (i = 0; i < len - 1; i++) { + for (i = 0; i < len; i++) { ret = lg216x_write_reg(state, regs[i].reg, regs[i].val); if (lg_fail(ret)) return ret; -- cgit v1.2.3-59-g8ed1b From 110301833d6f6c74e4da3a31fc3d327eb3436812 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 15 May 2012 05:12:44 -0300 Subject: [media] radio/si470x: Add support for the Axentia ALERT FM USB Receiver Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- drivers/hid/hid-core.c | 1 + drivers/hid/hid-ids.h | 3 +++ drivers/media/radio/si470x/radio-si470x-usb.c | 2 ++ 3 files changed, 6 insertions(+) diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c index 4da66b4b977c..20fecb8dd297 100644 --- a/drivers/hid/hid-core.c +++ b/drivers/hid/hid-core.c @@ -1800,6 +1800,7 @@ static const struct hid_device_id hid_ignore_list[] = { { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM)}, { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_LCM2)}, { HID_USB_DEVICE(USB_VENDOR_ID_AVERMEDIA, USB_DEVICE_ID_AVER_FM_MR800) }, + { HID_USB_DEVICE(USB_VENDOR_ID_AXENTIA, USB_DEVICE_ID_AXENTIA_FM_RADIO) }, { HID_USB_DEVICE(USB_VENDOR_ID_BERKSHIRE, USB_DEVICE_ID_BERKSHIRE_PCWD) }, { HID_USB_DEVICE(USB_VENDOR_ID_CIDC, 0x0103) }, { HID_USB_DEVICE(USB_VENDOR_ID_CYGNAL, USB_DEVICE_ID_CYGNAL_RADIO_SI470X) }, diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index e39aecb1f9f2..70298d13d3e9 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -157,6 +157,9 @@ #define USB_VENDOR_ID_AVERMEDIA 0x07ca #define USB_DEVICE_ID_AVER_FM_MR800 0xb800 +#define USB_VENDOR_ID_AXENTIA 0x12cf +#define USB_DEVICE_ID_AXENTIA_FM_RADIO 0x7111 + #define USB_VENDOR_ID_BELKIN 0x050d #define USB_DEVICE_ID_FLIP_KVM 0x3201 diff --git a/drivers/media/radio/si470x/radio-si470x-usb.c b/drivers/media/radio/si470x/radio-si470x-usb.c index e9f638761296..f412f7ab270b 100644 --- a/drivers/media/radio/si470x/radio-si470x-usb.c +++ b/drivers/media/radio/si470x/radio-si470x-usb.c @@ -51,6 +51,8 @@ static struct usb_device_id si470x_usb_driver_id_table[] = { { USB_DEVICE_AND_INTERFACE_INFO(0x1b80, 0xd700, USB_CLASS_HID, 0, 0) }, /* Sanei Electric, Inc. FM USB Radio (sold as DealExtreme.com PCear) */ { USB_DEVICE_AND_INTERFACE_INFO(0x10c5, 0x819a, USB_CLASS_HID, 0, 0) }, + /* Axentia ALERT FM USB Receiver */ + { USB_DEVICE_AND_INTERFACE_INFO(0x12cf, 0x7111, USB_CLASS_HID, 0, 0) }, /* Terminating entry */ { } }; -- cgit v1.2.3-59-g8ed1b From 0875eb755b66a6766be117133dbb6d8157ace337 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Fri, 18 May 2012 15:01:36 -0300 Subject: [media] snd_tea575x: Report correct frequency range for EU/US versus JA models My EU/US 5757 cannot tune below approx 86 Mhz, that is below that it does not even generate the standard not tuned to anything radio noise anymore, so clearly the 5757 cannot tune to the Japanese frequencies. This patch assumes that likewise the 5759 cannot tune to the EU/US frequencies. Signed-off-by: Hans de Goede CC: Ondrej Zary Signed-off-by: Mauro Carvalho Chehab --- sound/i2c/other/tea575x-tuner.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c index 582aace20ea3..aa9900dff6e9 100644 --- a/sound/i2c/other/tea575x-tuner.c +++ b/sound/i2c/other/tea575x-tuner.c @@ -37,8 +37,8 @@ MODULE_AUTHOR("Jaroslav Kysela "); MODULE_DESCRIPTION("Routines for control of TEA5757/5759 Philips AM/FM radio tuner chips"); MODULE_LICENSE("GPL"); -#define FREQ_LO (76U * 16000) -#define FREQ_HI (108U * 16000) +#define FREQ_LO ((tea->tea5759 ? 760 : 875) * 1600U) +#define FREQ_HI ((tea->tea5759 ? 910 : 1080) * 1600U) /* * definitions -- cgit v1.2.3-59-g8ed1b From 5daf53a6eb5c54c618c9def388d81c2769fd11a0 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sat, 19 May 2012 07:57:03 -0300 Subject: [media] snd_tea575x: Make the module using snd_tea575x the fops owner Before this patch the owner field of the /dev/radio# device fops was set to the snd-tea575x-tuner module itself. Meaning that the module which was using it could be rmmod-ed while the device is open, and then BAD things happen. I know, as I found out the hard way :) Note that there is no need to also somehow increase the refcount of the snd-tea575x-tuner module itself, since any drivers using it will have symbolic references to it. Signed-off-by: Hans de Goede CC: Ondrej Zary Signed-off-by: Mauro Carvalho Chehab --- drivers/media/radio/radio-maxiradio.c | 2 +- drivers/media/radio/radio-sf16fmr2.c | 2 +- include/sound/tea575x-tuner.h | 3 ++- sound/i2c/other/tea575x-tuner.c | 7 ++++--- sound/pci/es1968.c | 2 +- sound/pci/fm801.c | 4 ++-- 6 files changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/media/radio/radio-maxiradio.c b/drivers/media/radio/radio-maxiradio.c index 740a3d5520c7..b415211d0c4b 100644 --- a/drivers/media/radio/radio-maxiradio.c +++ b/drivers/media/radio/radio-maxiradio.c @@ -157,7 +157,7 @@ static int __devinit maxiradio_probe(struct pci_dev *pdev, const struct pci_devi goto err_out_free_region; dev->io = pci_resource_start(pdev, 0); - if (snd_tea575x_init(&dev->tea)) { + if (snd_tea575x_init(&dev->tea, THIS_MODULE)) { printk(KERN_ERR "radio-maxiradio: Unable to detect TEA575x tuner\n"); goto err_out_free_region; } diff --git a/drivers/media/radio/radio-sf16fmr2.c b/drivers/media/radio/radio-sf16fmr2.c index 52b8011f1b23..4efcbec74c52 100644 --- a/drivers/media/radio/radio-sf16fmr2.c +++ b/drivers/media/radio/radio-sf16fmr2.c @@ -238,7 +238,7 @@ static int __devinit fmr2_probe(struct fmr2 *fmr2, struct device *pdev, int io) snprintf(fmr2->tea.bus_info, sizeof(fmr2->tea.bus_info), "%s:%s", fmr2->is_fmd2 ? "PnP" : "ISA", dev_name(pdev)); - if (snd_tea575x_init(&fmr2->tea)) { + if (snd_tea575x_init(&fmr2->tea, THIS_MODULE)) { printk(KERN_ERR "radio-sf16fmr2: Unable to detect TEA575x tuner\n"); release_region(fmr2->io, 2); return -ENODEV; diff --git a/include/sound/tea575x-tuner.h b/include/sound/tea575x-tuner.h index ec3f910aa40b..0c3c2fb0f939 100644 --- a/include/sound/tea575x-tuner.h +++ b/include/sound/tea575x-tuner.h @@ -44,6 +44,7 @@ struct snd_tea575x_ops { struct snd_tea575x { struct v4l2_device *v4l2_dev; + struct v4l2_file_operations fops; struct video_device vd; /* video device */ int radio_nr; /* radio_nr */ bool tea5759; /* 5759 chip is present */ @@ -62,7 +63,7 @@ struct snd_tea575x { int (*ext_init)(struct snd_tea575x *tea); }; -int snd_tea575x_init(struct snd_tea575x *tea); +int snd_tea575x_init(struct snd_tea575x *tea, struct module *owner); void snd_tea575x_exit(struct snd_tea575x *tea); #endif /* __SOUND_TEA575X_TUNER_H */ diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c index aa9900dff6e9..ac62ee791a60 100644 --- a/sound/i2c/other/tea575x-tuner.c +++ b/sound/i2c/other/tea575x-tuner.c @@ -317,7 +317,6 @@ static int tea575x_s_ctrl(struct v4l2_ctrl *ctrl) } static const struct v4l2_file_operations tea575x_fops = { - .owner = THIS_MODULE, .unlocked_ioctl = video_ioctl2, .open = v4l2_fh_open, .release = v4l2_fh_release, @@ -337,7 +336,6 @@ static const struct v4l2_ioctl_ops tea575x_ioctl_ops = { }; static const struct video_device tea575x_radio = { - .fops = &tea575x_fops, .ioctl_ops = &tea575x_ioctl_ops, .release = video_device_release_empty, }; @@ -349,7 +347,7 @@ static const struct v4l2_ctrl_ops tea575x_ctrl_ops = { /* * initialize all the tea575x chips */ -int snd_tea575x_init(struct snd_tea575x *tea) +int snd_tea575x_init(struct snd_tea575x *tea, struct module *owner) { int retval; @@ -374,6 +372,9 @@ int snd_tea575x_init(struct snd_tea575x *tea) tea->vd.lock = &tea->mutex; tea->vd.v4l2_dev = tea->v4l2_dev; tea->vd.ctrl_handler = &tea->ctrl_handler; + tea->fops = tea575x_fops; + tea->fops.owner = owner; + tea->vd.fops = &tea->fops; set_bit(V4L2_FL_USE_FH_PRIO, &tea->vd.flags); /* disable hw_freq_seek if we can't use it */ if (tea->cannot_read_data) diff --git a/sound/pci/es1968.c b/sound/pci/es1968.c index a8faae1c85e4..0f2811eeeebd 100644 --- a/sound/pci/es1968.c +++ b/sound/pci/es1968.c @@ -2769,7 +2769,7 @@ static int __devinit snd_es1968_create(struct snd_card *card, chip->tea.ops = &snd_es1968_tea_ops; strlcpy(chip->tea.card, "SF64-PCE2", sizeof(chip->tea.card)); sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci)); - if (!snd_tea575x_init(&chip->tea)) + if (!snd_tea575x_init(&chip->tea, THIS_MODULE)) printk(KERN_INFO "es1968: detected TEA575x radio\n"); #endif diff --git a/sound/pci/fm801.c b/sound/pci/fm801.c index a416ea8af3e9..5265c576a26a 100644 --- a/sound/pci/fm801.c +++ b/sound/pci/fm801.c @@ -1254,7 +1254,7 @@ static int __devinit snd_fm801_create(struct snd_card *card, sprintf(chip->tea.bus_info, "PCI:%s", pci_name(pci)); if ((tea575x_tuner & TUNER_TYPE_MASK) > 0 && (tea575x_tuner & TUNER_TYPE_MASK) < 4) { - if (snd_tea575x_init(&chip->tea)) { + if (snd_tea575x_init(&chip->tea, THIS_MODULE)) { snd_printk(KERN_ERR "TEA575x radio not found\n"); snd_fm801_free(chip); return -ENODEV; @@ -1263,7 +1263,7 @@ static int __devinit snd_fm801_create(struct snd_card *card, /* autodetect tuner connection */ for (tea575x_tuner = 1; tea575x_tuner <= 3; tea575x_tuner++) { chip->tea575x_tuner = tea575x_tuner; - if (!snd_tea575x_init(&chip->tea)) { + if (!snd_tea575x_init(&chip->tea, THIS_MODULE)) { snd_printk(KERN_INFO "detected TEA575x radio type %s\n", get_tea575x_gpio(chip)->name); break; -- cgit v1.2.3-59-g8ed1b From 40e006aea811afb15e56164383b914cff7a078c7 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sat, 19 May 2012 11:19:06 -0300 Subject: [media] snd_tea575x: set_freq: update cached freq to the actual achieved frequency Signed-off-by: Hans de Goede CC: Ondrej Zary Signed-off-by: Mauro Carvalho Chehab --- sound/i2c/other/tea575x-tuner.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/sound/i2c/other/tea575x-tuner.c b/sound/i2c/other/tea575x-tuner.c index ac62ee791a60..7eca25fae413 100644 --- a/sound/i2c/other/tea575x-tuner.c +++ b/sound/i2c/other/tea575x-tuner.c @@ -120,9 +120,9 @@ static u32 snd_tea575x_read(struct snd_tea575x *tea) return data; } -static u32 snd_tea575x_get_freq(struct snd_tea575x *tea) +static u32 snd_tea575x_val_to_freq(struct snd_tea575x *tea, u32 val) { - u32 freq = snd_tea575x_read(tea) & TEA575X_BIT_FREQ_MASK; + u32 freq = val & TEA575X_BIT_FREQ_MASK; if (freq == 0) return freq; @@ -139,6 +139,11 @@ static u32 snd_tea575x_get_freq(struct snd_tea575x *tea) return clamp(freq * 16, FREQ_LO, FREQ_HI); /* from kHz */ } +static u32 snd_tea575x_get_freq(struct snd_tea575x *tea) +{ + return snd_tea575x_val_to_freq(tea, snd_tea575x_read(tea)); +} + static void snd_tea575x_set_freq(struct snd_tea575x *tea) { u32 freq = tea->freq; @@ -156,6 +161,7 @@ static void snd_tea575x_set_freq(struct snd_tea575x *tea) tea->val &= ~TEA575X_BIT_FREQ_MASK; tea->val |= freq & TEA575X_BIT_FREQ_MASK; snd_tea575x_write(tea, tea->val); + tea->freq = snd_tea575x_val_to_freq(tea, tea->val); } /* -- cgit v1.2.3-59-g8ed1b From 5c164646e25a5a073875c6ca346efa0d5afb6934 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sun, 20 May 2012 08:11:04 -0300 Subject: [media] bttv: Use btv->has_radio rather then the card info when registering the tuner bttv_init_card2() sets btv->has_audio to a *default* value from the tvcards array and then may update it by reading a card specific eeprom or gpio detection. After bttv_init_card2(), bttv_init_tuner() gets called, and it should clearly use the updated, dynamic has_radio value from btv->has_radio, rather then the const value in the tvcards array. This fixes the radio not working on my Hauppauge WinTV. Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/bt8xx/bttv-cards.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c index ff2933ab705f..1c030fecbf41 100644 --- a/drivers/media/video/bt8xx/bttv-cards.c +++ b/drivers/media/video/bt8xx/bttv-cards.c @@ -3649,7 +3649,7 @@ void __devinit bttv_init_tuner(struct bttv *btv) struct tuner_setup tun_setup; /* Load tuner module before issuing tuner config call! */ - if (bttv_tvcards[btv->c.type].has_radio) + if (btv->has_radio) v4l2_i2c_new_subdev(&btv->c.v4l2_dev, &btv->c.i2c_adap, "tuner", 0, v4l2_i2c_tuner_addrs(ADDRS_RADIO)); @@ -3664,7 +3664,7 @@ void __devinit bttv_init_tuner(struct bttv *btv) tun_setup.type = btv->tuner_type; tun_setup.addr = addr; - if (bttv_tvcards[btv->c.type].has_radio) + if (btv->has_radio) tun_setup.mode_mask |= T_RADIO; bttv_call_all(btv, tuner, s_type_addr, &tun_setup); -- cgit v1.2.3-59-g8ed1b From 792a21b0def241e73345e366a456ae7e516ba2f5 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Sun, 20 May 2012 12:05:30 -0300 Subject: [media] bttv: Remove unused needs_tvaudio card variable Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/bt8xx/bttv-cards.c | 76 ---------------------------------- drivers/media/video/bt8xx/bttv.h | 1 - 2 files changed, 77 deletions(-) diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c index 1c030fecbf41..959d4e15c98e 100644 --- a/drivers/media/video/bt8xx/bttv-cards.c +++ b/drivers/media/video/bt8xx/bttv-cards.c @@ -371,7 +371,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 2, 0, 0, 0 }, .gpiomute = 10, - .needs_tvaudio = 1, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, }, @@ -384,7 +383,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0, 1, 2, 3 }, .gpiomute = 4, - .needs_tvaudio = 1, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, }, @@ -398,7 +396,6 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 4, 0, 2, 3 }, .gpiomute = 1, .no_msp34xx = 1, - .needs_tvaudio = 1, .tuner_type = TUNER_PHILIPS_NTSC, .tuner_addr = ADDR_UNSET, .pll = PLL_28, @@ -414,7 +411,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0, .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0 }, - .needs_tvaudio = 0, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, }, @@ -427,7 +423,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 0), .gpiomux = { 0, 1, 0, 1 }, .gpiomute = 3, - .needs_tvaudio = 1, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, }, @@ -440,7 +435,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0x0f, .gpiomux = { 0x0c, 0x04, 0x08, 0x04 }, /* 0x04 for some cards ?? */ - .needs_tvaudio = 1, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .audio_mode_gpio= avermedia_tvphone_audio, @@ -454,7 +448,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0, .muxsel = MUXSEL(2, 3, 1, 0, 0), .gpiomux = { 0 }, - .needs_tvaudio = 1, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, }, @@ -469,7 +462,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0, 0xc00, 0x800, 0x400 }, .gpiomute = 0xc00, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, @@ -482,7 +474,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 3, .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 1, 1, 2, 3 }, - .needs_tvaudio = 0, .pll = PLL_28, .tuner_type = TUNER_TEMIC_PAL, .tuner_addr = ADDR_UNSET, @@ -496,7 +487,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 0, 1, 1), .gpiomux = { 0, 1, 2, 3 }, .gpiomute = 4, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, @@ -510,7 +500,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0x20001,0x10001, 0, 0 }, .gpiomute = 10, - .needs_tvaudio = 1, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, }, @@ -524,7 +513,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 15, .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 13, 14, 11, 7 }, - .needs_tvaudio = 1, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, }, @@ -536,7 +524,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 15, .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 13, 14, 11, 7 }, - .needs_tvaudio = 1, .msp34xx_alt = 1, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_PAL, @@ -553,7 +540,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0, 2, 1, 3 }, /* old: {0, 1, 2, 3, 4} */ .gpiomute = 4, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, @@ -567,7 +553,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0, 0, 1, 0 }, .gpiomute = 10, - .needs_tvaudio = 1, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, }, @@ -583,7 +568,6 @@ struct tvcard bttv_tvcards[] = { /* 2003-10-20 by "Anton A. Arapov" */ .gpiomux = { 0x001e00, 0, 0x018000, 0x014000 }, .gpiomute = 0x002000, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, @@ -597,7 +581,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1, 0), .gpiomux = { 0x4fa007,0xcfa007,0xcfa007,0xcfa007 }, .gpiomute = 0xcfa007, - .needs_tvaudio = 1, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, .volume_gpio = winview_volume, @@ -611,7 +594,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0, .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 1, 0, 0, 0 }, - .needs_tvaudio = 1, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, }, @@ -660,7 +642,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0, 1, 0x800, 0x400 }, .gpiomute = 0xc00, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, @@ -691,7 +672,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = {0x400, 0x400, 0x400, 0x400 }, .gpiomute = 0xc00, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, @@ -706,7 +686,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0x20000, 0x30000, 0x10000, 0 }, .gpiomute = 0x40000, - .needs_tvaudio = 0, .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, .audio_mode_gpio= terratv_audio, @@ -720,7 +699,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 0, 1, 1), .gpiomux = { 0, 1, 2, 3 }, .gpiomute = 4, - .needs_tvaudio = 1, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, }, @@ -748,7 +726,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0x20000, 0x30000, 0x10000, 0x00000 }, .gpiomute = 0x40000, - .needs_tvaudio = 0, .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, .audio_mode_gpio= terratv_audio, @@ -793,7 +770,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0, .muxsel = MUXSEL(2, 3, 1, 0, 0), .gpiomux = { 0 }, - .needs_tvaudio = 1, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, .muxsel_hook = PXC200_muxsel, @@ -834,7 +810,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0, .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0 }, - .needs_tvaudio = 0, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, }, @@ -847,7 +822,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0x500, 0, 0x300, 0x900 }, .gpiomute = 0x900, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, @@ -874,7 +848,6 @@ struct tvcard bttv_tvcards[] = { Note: There exists another variant "Winfast 2000" with tv stereo !? Note: eeprom only contains FF and pci subsystem id 107d:6606 */ - .needs_tvaudio = 0, .pll = PLL_28, .has_radio = 1, .tuner_type = TUNER_PHILIPS_PAL, /* default for now, gpio reads BFFF06 for Pal bg+dk */ @@ -934,7 +907,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 0), .gpiomux = { 0x551400, 0x551200, 0, 0 }, .gpiomute = 0x551c00, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_PAL_I, .tuner_addr = ADDR_UNSET, @@ -949,7 +921,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 2, 0xd0001, 0, 0 }, .gpiomute = 1, - .needs_tvaudio = 0, .pll = PLL_28, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, @@ -966,7 +937,6 @@ struct tvcard bttv_tvcards[] = { .gpiomux = { 4, 0, 2, 3 }, .gpiomute = 1, .no_msp34xx = 1, - .needs_tvaudio = 1, .tuner_type = TUNER_PHILIPS_NTSC, .tuner_addr = ADDR_UNSET, .pll = PLL_28, @@ -980,7 +950,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 15, .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 13, 4, 11, 7 }, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, @@ -995,7 +964,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0, .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0, 0, 0, 0}, - .needs_tvaudio = 1, .no_msp34xx = 1, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_PAL_I, @@ -1066,7 +1034,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0x20000, 0x30000, 0x10000, 0 }, .gpiomute = 0x40000, - .needs_tvaudio = 1, .no_msp34xx = 1, .pll = PLL_35, .tuner_type = TUNER_PHILIPS_PAL_I, @@ -1084,7 +1051,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = {2,0,0,0 }, .gpiomute = 1, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, @@ -1163,7 +1129,6 @@ struct tvcard bttv_tvcards[] = { MUX2 (mask 0x30000): 0,2,3= from MSP34xx 1= FM stereo Radio from Tuner */ - .needs_tvaudio = 0, .pll = PLL_28, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, @@ -1179,7 +1144,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0, 0, 0x10, 8 }, .gpiomute = 4, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, @@ -1218,7 +1182,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 0), .gpiomux = { 2, 0, 0, 0 }, .gpiomute = 10, - .needs_tvaudio = 0, .pll = PLL_28, .tuner_type = TUNER_TEMIC_PAL, .tuner_addr = ADDR_UNSET, @@ -1250,7 +1213,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0, .muxsel = MUXSEL(3, 1), .gpiomux = { 0 }, - .needs_tvaudio = 0, .no_msp34xx = 1, .pll = PLL_35, .tuner_type = TUNER_ABSENT, @@ -1266,7 +1228,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0x400, 0x400, 0x400, 0x400 }, .gpiomute = 0x800, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = TUNER_TEMIC_4036FY5_NTSC, .tuner_addr = ADDR_UNSET, @@ -1312,7 +1273,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 2), .gpiomux = { }, .no_msp34xx = 1, - .needs_tvaudio = 0, .pll = PLL_28, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, @@ -1329,7 +1289,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 0), .gpiomux = { 1, 0, 4, 4 }, .gpiomute = 9, - .needs_tvaudio = 0, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, @@ -1379,7 +1338,6 @@ struct tvcard bttv_tvcards[] = { .gpiomute = 0x1800, .audio_mode_gpio= fv2000s_audio, .no_msp34xx = 1, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, @@ -1393,7 +1351,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0x500, 0x500, 0x300, 0x900 }, .gpiomute = 0x900, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, @@ -1477,7 +1434,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0, 0, 11, 7 }, /* TV and Radio with same GPIO ! */ .gpiomute = 13, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = TUNER_LG_PAL_I_FM, .tuner_addr = ADDR_UNSET, @@ -1514,7 +1470,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0x01, 0x00, 0x03, 0x03 }, .gpiomute = 0x09, - .needs_tvaudio = 1, .no_msp34xx = 1, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_PAL, @@ -1540,7 +1495,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0, .muxsel = MUXSEL(2, 3, 1, 0, 0), .gpiomux = { 0 }, - .needs_tvaudio = 0, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, }, @@ -1567,7 +1521,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 1, 1), .gpiomux = { 0, 1, 2, 2 }, .gpiomute = 4, - .needs_tvaudio = 0, .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, .pll = PLL_28, @@ -1597,7 +1550,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0, .muxsel = MUXSEL(2, 3, 1, 0), .gpiomux = { 0 }, - .needs_tvaudio = 0, .no_msp34xx = 1, .pll = PLL_28, .tuner_type = TUNER_ABSENT, @@ -1619,7 +1571,6 @@ struct tvcard bttv_tvcards[] = { * btwincap uses 0x80000/0x80003 */ .gpiomute = 4, - .needs_tvaudio = 0, .no_msp34xx = 1, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_PAL, @@ -1655,7 +1606,6 @@ struct tvcard bttv_tvcards[] = { /* .audio_inputs= 1, */ .svhs = 2, .muxsel = MUXSEL(2, 0, 1, 1), - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = UNSET, .tuner_addr = ADDR_UNSET, @@ -1875,7 +1825,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0, 1, 2, 3}, .gpiomute = 4, - .needs_tvaudio = 1, .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, .pll = PLL_28, @@ -1902,7 +1851,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0, .muxsel = MUXSEL(2, 3), .gpiomux = { 0 }, - .needs_tvaudio = 0, .no_msp34xx = 1, .pll = PLL_28, .tuner_type = TUNER_ABSENT, @@ -1920,7 +1868,6 @@ struct tvcard bttv_tvcards[] = { /* Tuner, Radio, external, internal, off, on */ .gpiomux = { 0x08, 0x0f, 0x0a, 0x08 }, .gpiomute = 0x0f, - .needs_tvaudio = 0, .no_msp34xx = 1, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_NTSC, @@ -1936,7 +1883,6 @@ struct tvcard bttv_tvcards[] = { .svhs = 2, .gpiomask = 0x00, .muxsel = MUXSEL(2, 3, 1, 1), - .needs_tvaudio = 1, .no_msp34xx = 1, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_PAL, @@ -2034,7 +1980,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0, .muxsel = MUXSEL(2, 3, 1, 0), .gpiomux = { 0 }, - .needs_tvaudio = 0, .no_msp34xx = 1, .pll = PLL_28, .tuner_type = TUNER_ABSENT, @@ -2049,7 +1994,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0x00, .muxsel = MUXSEL(2, 3, 1, 0), .gpiomux = { 0, 0, 0, 0 }, /* card has no audio */ - .needs_tvaudio = 0, .pll = PLL_28, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, @@ -2062,7 +2006,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0x00, .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0, 0, 0, 0 }, /* card has no audio */ - .needs_tvaudio = 0, .pll = PLL_28, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, @@ -2079,7 +2022,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 2, 2, 2, 3, 3, 3, 3, 1, 0), .muxsel_hook = phytec_muxsel, .gpiomux = { 0, 0, 0, 0 }, /* card has no audio */ - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, @@ -2094,7 +2036,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 2, 2, 2, 3, 3, 3, 3, 1, 1), .muxsel_hook = phytec_muxsel, .gpiomux = { 0, 0, 0, 0 }, /* card has no audio */ - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, @@ -2118,7 +2059,6 @@ struct tvcard bttv_tvcards[] = { .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, .svhs = NO_SVHS, /* card has no svhs */ - .needs_tvaudio = 0, .no_msp34xx = 1, .no_tda7432 = 1, .gpiomask = 0x00, @@ -2168,7 +2108,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 3, .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 1, 1, 1, 1 }, - .needs_tvaudio = 1, .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, .pll = PLL_35, @@ -2210,7 +2149,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 0), .no_msp34xx = 1, .no_tda7432 = 1, - .needs_tvaudio = 0, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, }, @@ -2222,7 +2160,6 @@ struct tvcard bttv_tvcards[] = { .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, .svhs = 2, - .needs_tvaudio = 0, .gpiomask = 0x68, .muxsel = MUXSEL(2, 3, 1), .gpiomux = { 0x68, 0x68, 0x61, 0x61 }, @@ -2241,7 +2178,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0, 1, 2, 2 }, .gpiomute = 3, - .needs_tvaudio = 0, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, @@ -2265,7 +2201,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 2, 2, 2), .gpiomux = { 0, 0, 0, 0 }, /* card has no audio */ .pll = PLL_28, - .needs_tvaudio = 0, .muxsel_hook = picolo_tetra_muxsel,/*Required as it doesn't follow the classic input selection policy*/ .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, @@ -2358,7 +2293,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 2, 0, 0, 0 }, .gpiomute = 10, - .needs_tvaudio = 0, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_PAL, .tuner_addr = ADDR_UNSET, @@ -2405,7 +2339,6 @@ struct tvcard bttv_tvcards[] = { .tuner_addr = ADDR_UNSET, .gpiomask = 0x008007, .gpiomux = { 0, 0x000001,0,0 }, - .needs_tvaudio = 1, .has_radio = 1, }, [BTTV_BOARD_TIBET_CS16] = { @@ -2518,7 +2451,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0x001e00, 0, 0x018000, 0x014000 }, .gpiomute = 0x002000, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = TUNER_YMEC_TVF66T5_B_DFF, .tuner_addr = 0xc1 >>1, @@ -2534,7 +2466,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0, 1, 2, 2 }, .gpiomute = 3, - .needs_tvaudio = 0, .pll = PLL_28, .tuner_type = TUNER_TENA_9533_DI, .tuner_addr = ADDR_UNSET, @@ -2615,7 +2546,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 2, 0, 0, 0 }, .gpiomute = 1, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_NTSC, .tuner_addr = ADDR_UNSET, @@ -2714,7 +2644,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0x20001,0x10001, 0, 0 }, .gpiomute = 10, - .needs_tvaudio = 1, .pll = PLL_28, .tuner_type = TUNER_PHILIPS_PAL_I, .tuner_addr = ADDR_UNSET, @@ -2746,7 +2675,6 @@ struct tvcard bttv_tvcards[] = { .muxsel = MUXSEL(2, 3, 1, 1), .gpiomux = { 0, 1, 2, 2 }, /* CONTVFMi */ .gpiomute = 3, /* CONTVFMi */ - .needs_tvaudio = 0, .tuner_type = TUNER_PHILIPS_FM1216ME_MK3, /* TCL MK3 */ .tuner_addr = ADDR_UNSET, .pll = PLL_28, @@ -2785,7 +2713,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0x00, .muxsel = MUXSEL(0, 2, 3, 1), .gpiomux = { 0, 0, 0, 0 }, /* card has no audio */ - .needs_tvaudio = 0, .pll = PLL_28, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, @@ -2799,7 +2726,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0x00, .muxsel = MUXSEL(2, 3, 1), .gpiomux = { 0, 0, 0, 0 }, /* card has no audio */ - .needs_tvaudio = 0, .pll = PLL_28, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, @@ -2813,7 +2739,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0x00, .muxsel = MUXSEL(3, 2, 1), .gpiomux = { 0, 0, 0, 0 }, /* card has no audio */ - .needs_tvaudio = 0, .pll = PLL_28, .tuner_type = TUNER_ABSENT, .tuner_addr = ADDR_UNSET, @@ -2877,7 +2802,6 @@ struct tvcard bttv_tvcards[] = { .gpiomask = 0, .muxsel = MUXSEL(2, 3), .gpiomux = { 0 }, - .needs_tvaudio = 0, .no_msp34xx = 1, .pll = PLL_28, .tuner_type = TUNER_ABSENT, diff --git a/drivers/media/video/bt8xx/bttv.h b/drivers/media/video/bt8xx/bttv.h index c5171619ac79..acfe2f3b92d9 100644 --- a/drivers/media/video/bt8xx/bttv.h +++ b/drivers/media/video/bt8xx/bttv.h @@ -236,7 +236,6 @@ struct tvcard { /* i2c audio flags */ unsigned int no_msp34xx:1; unsigned int no_tda7432:1; - unsigned int needs_tvaudio:1; unsigned int msp34xx_alt:1; /* Note: currently no card definition needs to mark the presence of a RDS saa6588 chip. If this is ever needed, then add a new -- cgit v1.2.3-59-g8ed1b From 7025e521b1b068af8a47a7625335a605bbd4d7ea Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 21 May 2012 07:46:22 -0300 Subject: [media] bttv: The Hauppauge 61334 needs the msp3410 to do radio demodulation The (radio) audio out from the tuner (which can also demod FM radio) does not seem to be hooked up to the msp3410 on this board in any way, so the only way to get sound from the radio part is to make the msp3410 do the FM radio demod. The msp3410 can handle this fine, but it is a bit weird compared to how it is handled on other boards. Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/bt8xx/bttv-cards.c | 4 ++++ drivers/media/video/bt8xx/bttv-driver.c | 5 +++++ drivers/media/video/bt8xx/bttvp.h | 1 + 3 files changed, 10 insertions(+) diff --git a/drivers/media/video/bt8xx/bttv-cards.c b/drivers/media/video/bt8xx/bttv-cards.c index 959d4e15c98e..856ab962cd63 100644 --- a/drivers/media/video/bt8xx/bttv-cards.c +++ b/drivers/media/video/bt8xx/bttv-cards.c @@ -3648,6 +3648,10 @@ static void __devinit hauppauge_eeprom(struct bttv *btv) bttv_tvcards[BTTV_BOARD_HAUPPAUGE_IMPACTVCB].name); btv->c.type = BTTV_BOARD_HAUPPAUGE_IMPACTVCB; } + + /* The 61334 needs the msp3410 to do the radio demod to get sound */ + if (tv.model == 61334) + btv->radio_uses_msp_demodulator = 1; } static int terratec_active_radio_upgrade(struct bttv *btv) diff --git a/drivers/media/video/bt8xx/bttv-driver.c b/drivers/media/video/bt8xx/bttv-driver.c index a9cfb0f4be48..ff7a589d8e0f 100644 --- a/drivers/media/video/bt8xx/bttv-driver.c +++ b/drivers/media/video/bt8xx/bttv-driver.c @@ -1218,6 +1218,11 @@ audio_mux(struct bttv *btv, int input, int mute) For now this is sufficient. */ switch (input) { case TVAUDIO_INPUT_RADIO: + /* Some boards need the msp do to the radio demod */ + if (btv->radio_uses_msp_demodulator) { + in = MSP_INPUT_DEFAULT; + break; + } in = MSP_INPUT(MSP_IN_SCART2, MSP_IN_TUNER1, MSP_DSP_IN_SCART, MSP_DSP_IN_SCART); break; diff --git a/drivers/media/video/bt8xx/bttvp.h b/drivers/media/video/bt8xx/bttvp.h index db943a8d580d..70fd4f23f605 100644 --- a/drivers/media/video/bt8xx/bttvp.h +++ b/drivers/media/video/bt8xx/bttvp.h @@ -440,6 +440,7 @@ struct bttv { /* radio data/state */ int has_radio; int radio_user; + int radio_uses_msp_demodulator; /* miro/pinnacle + Aimslab VHX philips matchbox (tea5757 radio tuner) support */ -- cgit v1.2.3-59-g8ed1b From b6fc2eb965726bf31bbbca6e7a833f98c03a6ce2 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 14 May 2012 14:51:22 -0300 Subject: [media] gspca_pac7311: Correct number of controls This avoids the need for a re-alloc during init. Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/pac7311.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/gspca/pac7311.c b/drivers/media/video/gspca/pac7311.c index 2cb7d95f7be7..115da169f32a 100644 --- a/drivers/media/video/gspca/pac7311.c +++ b/drivers/media/video/gspca/pac7311.c @@ -418,7 +418,7 @@ static int sd_init_controls(struct gspca_dev *gspca_dev) struct v4l2_ctrl_handler *hdl = &gspca_dev->ctrl_handler; gspca_dev->vdev.ctrl_handler = hdl; - v4l2_ctrl_handler_init(hdl, 4); + v4l2_ctrl_handler_init(hdl, 5); sd->contrast = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_CONTRAST, 0, 15, 1, 7); -- cgit v1.2.3-59-g8ed1b From bc378feeda46633cfa92dac7a7ef5df66047b0ef Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Mon, 14 May 2012 14:55:15 -0300 Subject: [media] gscpa_sn9c20x: Move clustering of controls to after error checking Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/sn9c20x.c | 24 ++++++++++++++---------- 1 file changed, 14 insertions(+), 10 deletions(-) diff --git a/drivers/media/video/gspca/sn9c20x.c b/drivers/media/video/gspca/sn9c20x.c index ad098202d7f0..6c31e46a1fd2 100644 --- a/drivers/media/video/gspca/sn9c20x.c +++ b/drivers/media/video/gspca/sn9c20x.c @@ -1761,7 +1761,6 @@ static int sd_init_controls(struct gspca_dev *gspca_dev) V4L2_CID_SATURATION, 0, 255, 1, 127); sd->hue = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_HUE, -180, 180, 1, 0); - v4l2_ctrl_cluster(4, &sd->brightness); sd->gamma = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_GAMMA, 0, 255, 1, 0x10); @@ -1770,7 +1769,6 @@ static int sd_init_controls(struct gspca_dev *gspca_dev) V4L2_CID_BLUE_BALANCE, 0, 127, 1, 0x28); sd->red = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_RED_BALANCE, 0, 127, 1, 0x28); - v4l2_ctrl_cluster(2, &sd->blue); if (sd->sensor != SENSOR_OV9655 && sd->sensor != SENSOR_SOI968 && sd->sensor != SENSOR_OV7670 && sd->sensor != SENSOR_MT9M001 && @@ -1779,7 +1777,6 @@ static int sd_init_controls(struct gspca_dev *gspca_dev) V4L2_CID_HFLIP, 0, 1, 1, 0); sd->vflip = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_VFLIP, 0, 1, 1, 0); - v4l2_ctrl_cluster(2, &sd->hflip); } if (sd->sensor != SENSOR_SOI968 && sd->sensor != SENSOR_MT9VPRB && @@ -1794,6 +1791,20 @@ static int sd_init_controls(struct gspca_dev *gspca_dev) V4L2_CID_GAIN, 0, 28, 1, 0); sd->autogain = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, V4L2_CID_AUTOGAIN, 0, 1, 1, 1); + } + + sd->jpegqual = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, + V4L2_CID_JPEG_COMPRESSION_QUALITY, 50, 90, 1, 80); + if (hdl->error) { + pr_err("Could not initialize controls\n"); + return hdl->error; + } + + v4l2_ctrl_cluster(4, &sd->brightness); + v4l2_ctrl_cluster(2, &sd->blue); + if (sd->hflip) + v4l2_ctrl_cluster(2, &sd->hflip); + if (sd->autogain) { if (sd->sensor == SENSOR_SOI968) /* this sensor doesn't have the exposure control and autogain is clustered with gain instead. This works @@ -1803,13 +1814,6 @@ static int sd_init_controls(struct gspca_dev *gspca_dev) /* Otherwise autogain is clustered with exposure. */ v4l2_ctrl_auto_cluster(2, &sd->autogain, 0, false); } - - sd->jpegqual = v4l2_ctrl_new_std(hdl, &sd_ctrl_ops, - V4L2_CID_JPEG_COMPRESSION_QUALITY, 50, 90, 1, 80); - if (hdl->error) { - pr_err("Could not initialize controls\n"); - return hdl->error; - } return 0; } -- cgit v1.2.3-59-g8ed1b From cf3c1c319500e879daa1487f41bb094bd377566f Mon Sep 17 00:00:00 2001 From: Antonio Ospite Date: Wed, 16 May 2012 18:42:45 -0300 Subject: [media] gspca_ov534: make AGC and AWB controls independent Even if the best results are indeed achieved with both AGC and AWB enabled, the webcam is capable of setting these independently, and the user can see the difference of any of the 4 combinations of these two boolean controls. Removing the dependency from one another simplifies the code and gives more control to the user. Signed-off-by: Antonio Ospite Signed-off-by: Hans de Goede Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/ov534.c | 31 ++----------------------------- 1 file changed, 2 insertions(+), 29 deletions(-) diff --git a/drivers/media/video/gspca/ov534.c b/drivers/media/video/gspca/ov534.c index b5acb1e4b4e7..c16bd1b7914a 100644 --- a/drivers/media/video/gspca/ov534.c +++ b/drivers/media/video/gspca/ov534.c @@ -96,7 +96,7 @@ static void setbrightness(struct gspca_dev *gspca_dev); static void setcontrast(struct gspca_dev *gspca_dev); static void setgain(struct gspca_dev *gspca_dev); static void setexposure(struct gspca_dev *gspca_dev); -static int sd_setagc(struct gspca_dev *gspca_dev, __s32 val); +static void setagc(struct gspca_dev *gspca_dev); static void setawb(struct gspca_dev *gspca_dev); static void setaec(struct gspca_dev *gspca_dev); static void setsharpness(struct gspca_dev *gspca_dev); @@ -189,7 +189,7 @@ static const struct ctrl sd_ctrls[] = { .step = 1, .default_value = 1, }, - .set = sd_setagc + .set_control = setagc }, [AWB] = { { @@ -1242,10 +1242,6 @@ static int sd_config(struct gspca_dev *gspca_dev, cam->ctrls = sd->ctrls; - /* the auto white balance control works only when auto gain is set */ - if (sd_ctrls[AGC].qctrl.default_value == 0) - gspca_dev->ctrl_inac |= (1 << AWB); - cam->cam_mode = ov772x_mode; cam->nmodes = ARRAY_SIZE(ov772x_mode); @@ -1486,29 +1482,6 @@ scan_next: } while (remaining_len > 0); } -static int sd_setagc(struct gspca_dev *gspca_dev, __s32 val) -{ - struct sd *sd = (struct sd *) gspca_dev; - - sd->ctrls[AGC].val = val; - - /* the auto white balance control works only - * when auto gain is set */ - if (val) { - gspca_dev->ctrl_inac &= ~(1 << AWB); - } else { - gspca_dev->ctrl_inac |= (1 << AWB); - if (sd->ctrls[AWB].val) { - sd->ctrls[AWB].val = 0; - if (gspca_dev->streaming) - setawb(gspca_dev); - } - } - if (gspca_dev->streaming) - setagc(gspca_dev); - return gspca_dev->usb_err; -} - static int sd_querymenu(struct gspca_dev *gspca_dev, struct v4l2_querymenu *menu) { -- cgit v1.2.3-59-g8ed1b From af05ef01e9cde84620c6855a8d8ab9c8a1db9009 Mon Sep 17 00:00:00 2001 From: Hans de Goede Date: Tue, 22 May 2012 11:24:05 -0300 Subject: [media] gspca-core: Fix buffers staying in queued state after a stream_off This fixes a regression introduced by commit f7059ea and should be backported to all supported stable kernels which have this commit. Signed-off-by: Hans de Goede Tested-by: Antonio Ospite CC: stable@vger.kernel.org Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/gspca.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/gspca/gspca.c b/drivers/media/video/gspca/gspca.c index 137166d73945..31721eadc597 100644 --- a/drivers/media/video/gspca/gspca.c +++ b/drivers/media/video/gspca/gspca.c @@ -1653,7 +1653,7 @@ static int vidioc_streamoff(struct file *file, void *priv, enum v4l2_buf_type buf_type) { struct gspca_dev *gspca_dev = video_drvdata(file); - int ret; + int i, ret; if (buf_type != V4L2_BUF_TYPE_VIDEO_CAPTURE) return -EINVAL; @@ -1678,6 +1678,8 @@ static int vidioc_streamoff(struct file *file, void *priv, wake_up_interruptible(&gspca_dev->wq); /* empty the transfer queues */ + for (i = 0; i < gspca_dev->nframes; i++) + gspca_dev->frame[i].v4l2_buf.flags &= ~BUF_ALL_FLAGS; atomic_set(&gspca_dev->fr_q, 0); atomic_set(&gspca_dev->fr_i, 0); gspca_dev->fr_o = 0; -- cgit v1.2.3-59-g8ed1b From f19ed98111d508bafc1aa31478f2c612cbdc26b5 Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Mon, 28 May 2012 14:04:07 -0300 Subject: [media] gspca - ov534/ov534_9: Fix sccd_read/write errors MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The ov534 bridge is too slow to handle the sensor accesses requested by fast hosts giving 'sccb_reg_write failed'. A small delay fixes the problem. Signed-off-by: Jean-François Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/ov534.c | 1 + drivers/media/video/gspca/ov534_9.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/media/video/gspca/ov534.c b/drivers/media/video/gspca/ov534.c index c16bd1b7914a..80c81dd6d68b 100644 --- a/drivers/media/video/gspca/ov534.c +++ b/drivers/media/video/gspca/ov534.c @@ -851,6 +851,7 @@ static int sccb_check_status(struct gspca_dev *gspca_dev) int i; for (i = 0; i < 5; i++) { + msleep(10); data = ov534_reg_read(gspca_dev, OV534_REG_STATUS); switch (data) { diff --git a/drivers/media/video/gspca/ov534_9.c b/drivers/media/video/gspca/ov534_9.c index e6601b886032..0120f947e076 100644 --- a/drivers/media/video/gspca/ov534_9.c +++ b/drivers/media/video/gspca/ov534_9.c @@ -1008,6 +1008,7 @@ static int sccb_check_status(struct gspca_dev *gspca_dev) int i; for (i = 0; i < 5; i++) { + msleep(10); data = reg_r(gspca_dev, OV534_REG_STATUS); switch (data) { -- cgit v1.2.3-59-g8ed1b From f9798ef6342e6dad3fc3d7aa2ce2147469acf507 Mon Sep 17 00:00:00 2001 From: Jean-Francois Moine Date: Mon, 28 May 2012 14:05:25 -0300 Subject: [media] gspca - sonixj: Fix bad values of webcam 0458:7025 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The webcam 0458:7025 (Eye911Q) has: - an inverted power pin, - a sensor mi0360b which cannot be probed. Signed-off-by: Jean-François Moine Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/gspca/sonixj.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/gspca/sonixj.c b/drivers/media/video/gspca/sonixj.c index 4d1696d1a7f4..f38faa9b37c3 100644 --- a/drivers/media/video/gspca/sonixj.c +++ b/drivers/media/video/gspca/sonixj.c @@ -3120,7 +3120,7 @@ static const struct sd_desc sd_desc = { | (SENSOR_ ## sensor << 8) \ | (flags) static const struct usb_device_id device_table[] = { - {USB_DEVICE(0x0458, 0x7025), BS(SN9C120, MI0360)}, + {USB_DEVICE(0x0458, 0x7025), BSF(SN9C120, MI0360B, F_PDN_INV)}, {USB_DEVICE(0x0458, 0x702e), BS(SN9C120, OV7660)}, {USB_DEVICE(0x045e, 0x00f5), BSF(SN9C105, OV7660, F_PDN_INV)}, {USB_DEVICE(0x045e, 0x00f7), BSF(SN9C105, OV7660, F_PDN_INV)}, -- cgit v1.2.3-59-g8ed1b From 5cd0b50fddb6649bfd73648912464e1cc90bd0c1 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 23 May 2012 02:41:39 -0300 Subject: [media] saa7146_fops: remove unused variable Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/common/saa7146_fops.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/media/common/saa7146_fops.c b/drivers/media/common/saa7146_fops.c index 7d42c11c8684..0cdbd742974a 100644 --- a/drivers/media/common/saa7146_fops.c +++ b/drivers/media/common/saa7146_fops.c @@ -198,7 +198,6 @@ static int fops_open(struct file *file) struct saa7146_dev *dev = video_drvdata(file); struct saa7146_fh *fh = NULL; int result = 0; - enum v4l2_buf_type type; DEB_EE("file:%p, dev:%s\n", file, video_device_node_name(vdev)); @@ -207,10 +206,6 @@ static int fops_open(struct file *file) DEB_D("using: %p\n", dev); - type = vdev->vfl_type == VFL_TYPE_GRABBER - ? V4L2_BUF_TYPE_VIDEO_CAPTURE - : V4L2_BUF_TYPE_VBI_CAPTURE; - /* check if an extension is registered */ if( NULL == dev->ext ) { DEB_S("no extension registered for this device\n"); -- cgit v1.2.3-59-g8ed1b From 91e0cd499fe8482d5104c1f8f49b478f76617b40 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 23 May 2012 02:48:37 -0300 Subject: [media] cx24110: fix compiler warning MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit v4l-dvb-git/drivers/media/dvb/frontends/cx24110.c: In function ‘cx24110_read_ucblocks’: v4l-dvb-git/drivers/media/dvb/frontends/cx24110.c:520:40: warning: value computed is not used [-Wunused-value] Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/cx24110.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/dvb/frontends/cx24110.c b/drivers/media/dvb/frontends/cx24110.c index 98ecaf0900d6..3180f5b2a6a6 100644 --- a/drivers/media/dvb/frontends/cx24110.c +++ b/drivers/media/dvb/frontends/cx24110.c @@ -516,9 +516,9 @@ static int cx24110_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks) if(cx24110_readreg(state,0x10)&0x40) { /* the RS error counter has finished one counting window */ cx24110_writereg(state,0x10,0x60); /* select the byer reg */ - cx24110_readreg(state, 0x12) | + (void)(cx24110_readreg(state, 0x12) | (cx24110_readreg(state, 0x13) << 8) | - (cx24110_readreg(state, 0x14) << 16); + (cx24110_readreg(state, 0x14) << 16)); cx24110_writereg(state,0x10,0x70); /* select the bler reg */ state->lastbler=cx24110_readreg(state,0x12)| (cx24110_readreg(state,0x13)<<8)| -- cgit v1.2.3-59-g8ed1b From f9ac50c244f9030b300d6f390e838239612d7efa Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 23 May 2012 06:32:52 -0300 Subject: [media] vino: fix compiler warnings v4l-dvb-git/drivers/media/video/vino.c: In function 'vino_acquire_input': v4l-dvb-git/drivers/media/video/vino.c:2602:18: warning: 'data_norm' may be used uninitialized in this function [-Wuninitialized] v4l-dvb-git/drivers/media/video/vino.c: In function 'vino_set_input': v4l-dvb-git/drivers/media/video/vino.c:2690:19: warning: 'data_norm' may be used uninitialized in this function [-Wuninitialized] Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/vino.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/video/vino.c b/drivers/media/video/vino.c index 4d7391ec8001..aae1720b2f2d 100644 --- a/drivers/media/video/vino.c +++ b/drivers/media/video/vino.c @@ -2561,7 +2561,7 @@ static int vino_acquire_input(struct vino_channel_settings *vcs) } else if (vino_drvdata->decoder && (vino_drvdata->decoder_owner == VINO_NO_CHANNEL)) { int input; - int data_norm; + int data_norm = 0; v4l2_std_id norm; input = VINO_INPUT_COMPOSITE; @@ -2651,7 +2651,7 @@ static int vino_set_input(struct vino_channel_settings *vcs, int input) } if (vino_drvdata->decoder_owner == vcs->channel) { - int data_norm; + int data_norm = 0; v4l2_std_id norm; ret = decoder_call(video, s_routing, -- cgit v1.2.3-59-g8ed1b From 3e1141e2ce5667301a74ca2ef396d9bd5e995f7f Mon Sep 17 00:00:00 2001 From: Michael Krufky Date: Fri, 25 May 2012 09:29:12 -0300 Subject: [media] smsusb: add autodetection support for USB ID 2040:f5a0 Signed-off-by: Michael Krufky Cc: stable@kernel.org Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/siano/smsusb.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/dvb/siano/smsusb.c b/drivers/media/dvb/siano/smsusb.c index 63c004a25e0b..664e460f247b 100644 --- a/drivers/media/dvb/siano/smsusb.c +++ b/drivers/media/dvb/siano/smsusb.c @@ -544,6 +544,8 @@ static const struct usb_device_id smsusb_id_table[] __devinitconst = { .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM }, { USB_DEVICE(0x2040, 0xc0a0), .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM }, + { USB_DEVICE(0x2040, 0xf5a0), + .driver_info = SMS1XXX_BOARD_HAUPPAUGE_WINDHAM }, { } /* Terminating entry */ }; -- cgit v1.2.3-59-g8ed1b From 0c142c86991551b8b9675ab72609f7a29ee2e1e3 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 25 May 2012 11:51:31 -0300 Subject: [media] v4l2-ioctl: set readbuffers to 2 in g_parm If g_parm is handled automatically, then set readbuffers to 2, which is the minimum number of buffers videobuf uses. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/v4l2-ioctl.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/video/v4l2-ioctl.c b/drivers/media/video/v4l2-ioctl.c index 91be4e871f43..d7fa8962d8b3 100644 --- a/drivers/media/video/v4l2-ioctl.c +++ b/drivers/media/video/v4l2-ioctl.c @@ -1680,6 +1680,7 @@ static long __video_do_ioctl(struct file *file, break; ret = 0; + p->parm.capture.readbuffers = 2; if (ops->vidioc_g_std) ret = ops->vidioc_g_std(file, fh, &std); if (ret == 0) -- cgit v1.2.3-59-g8ed1b From a5ee6e41b2dee2aae2930278ba070ea8385db040 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 25 May 2012 11:58:06 -0300 Subject: [media] v4l2-dev.c: fix g_parm regression in determine_valid_ioctls() The field current_norm does not have to be set for g_parm to be a valid ioctl. Remove that check, but add a check whether this is a video node instead as g_parm only makes sense for those nodes. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/v4l2-dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/v4l2-dev.c b/drivers/media/video/v4l2-dev.c index 150020805681..83dbb2ddff10 100644 --- a/drivers/media/video/v4l2-dev.c +++ b/drivers/media/video/v4l2-dev.c @@ -656,7 +656,7 @@ static void determine_valid_ioctls(struct video_device *vdev) SET_VALID_IOCTL(ops, VIDIOC_TRY_ENCODER_CMD, vidioc_try_encoder_cmd); SET_VALID_IOCTL(ops, VIDIOC_DECODER_CMD, vidioc_decoder_cmd); SET_VALID_IOCTL(ops, VIDIOC_TRY_DECODER_CMD, vidioc_try_decoder_cmd); - if (ops->vidioc_g_parm || vdev->current_norm) + if (ops->vidioc_g_parm || vdev->vfl_type == VFL_TYPE_GRABBER) set_bit(_IOC_NR(VIDIOC_G_PARM), valid_ioctls); SET_VALID_IOCTL(ops, VIDIOC_S_PARM, vidioc_s_parm); SET_VALID_IOCTL(ops, VIDIOC_G_TUNER, vidioc_g_tuner); -- cgit v1.2.3-59-g8ed1b From c44ff8fa026ab34d95ce0805a56ca507c313a91d Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Fri, 25 May 2012 12:01:40 -0300 Subject: [media] tuner-core: return the frequency range of the correct tuner The frequency range of the current tuner (radio or TV) was returned instead of the frequency range of the requested tuner (which depends on the device node). This bug caused the frequency range of the radio tuner to be returned when G_TUNER was called on a video node. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/tuner-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/tuner-core.c b/drivers/media/video/tuner-core.c index 3e050e12153b..1ad5ab6ce5cf 100644 --- a/drivers/media/video/tuner-core.c +++ b/drivers/media/video/tuner-core.c @@ -1178,7 +1178,7 @@ static int tuner_g_tuner(struct v4l2_subdev *sd, struct v4l2_tuner *vt) return 0; if (vt->type == t->mode && analog_ops->get_afc) vt->afc = analog_ops->get_afc(&t->fe); - if (t->mode != V4L2_TUNER_RADIO) { + if (vt->type != V4L2_TUNER_RADIO) { vt->capability |= V4L2_TUNER_CAP_NORM; vt->rangelow = tv_range[0] * 16; vt->rangehigh = tv_range[1] * 16; -- cgit v1.2.3-59-g8ed1b From 1c36dfc5c51b1406c2454fde922491ca6dab8513 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 26 May 2012 08:04:26 -0300 Subject: [media] ivtv: fix support for big-endian systems base_addr has type resource_size_t, which may be 64 bits on a 32-bit ppc. Tested on my ppc board. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/ivtv/ivtv-driver.c | 18 +++++++++--------- drivers/media/video/ivtv/ivtv-driver.h | 2 +- 2 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/media/video/ivtv/ivtv-driver.c b/drivers/media/video/ivtv/ivtv-driver.c index 057929e165ab..5462ce2f60ea 100644 --- a/drivers/media/video/ivtv/ivtv-driver.c +++ b/drivers/media/video/ivtv/ivtv-driver.c @@ -866,10 +866,10 @@ static int ivtv_setup_pci(struct ivtv *itv, struct pci_dev *pdev, pci_write_config_dword(pdev, 0x40, 0xffff); IVTV_DEBUG_INFO("%d (rev %d) at %02x:%02x.%x, " - "irq: %d, latency: %d, memory: 0x%lx\n", + "irq: %d, latency: %d, memory: 0x%llx\n", pdev->device, pdev->revision, pdev->bus->number, PCI_SLOT(pdev->devfn), PCI_FUNC(pdev->devfn), - pdev->irq, pci_latency, (unsigned long)itv->base_addr); + pdev->irq, pci_latency, (u64)itv->base_addr); return 0; } @@ -1007,7 +1007,7 @@ static int __devinit ivtv_probe(struct pci_dev *pdev, itv->cxhdl.priv = itv; itv->cxhdl.func = ivtv_api_func; - IVTV_DEBUG_INFO("base addr: 0x%08x\n", itv->base_addr); + IVTV_DEBUG_INFO("base addr: 0x%llx\n", (u64)itv->base_addr); /* PCI Device Setup */ retval = ivtv_setup_pci(itv, pdev, pci_id); @@ -1017,8 +1017,8 @@ static int __devinit ivtv_probe(struct pci_dev *pdev, goto free_mem; /* map io memory */ - IVTV_DEBUG_INFO("attempting ioremap at 0x%08x len 0x%08x\n", - itv->base_addr + IVTV_ENCODER_OFFSET, IVTV_ENCODER_SIZE); + IVTV_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n", + (u64)itv->base_addr + IVTV_ENCODER_OFFSET, IVTV_ENCODER_SIZE); itv->enc_mem = ioremap_nocache(itv->base_addr + IVTV_ENCODER_OFFSET, IVTV_ENCODER_SIZE); if (!itv->enc_mem) { @@ -1034,8 +1034,8 @@ static int __devinit ivtv_probe(struct pci_dev *pdev, } if (itv->has_cx23415) { - IVTV_DEBUG_INFO("attempting ioremap at 0x%08x len 0x%08x\n", - itv->base_addr + IVTV_DECODER_OFFSET, IVTV_DECODER_SIZE); + IVTV_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n", + (u64)itv->base_addr + IVTV_DECODER_OFFSET, IVTV_DECODER_SIZE); itv->dec_mem = ioremap_nocache(itv->base_addr + IVTV_DECODER_OFFSET, IVTV_DECODER_SIZE); if (!itv->dec_mem) { @@ -1056,8 +1056,8 @@ static int __devinit ivtv_probe(struct pci_dev *pdev, } /* map registers memory */ - IVTV_DEBUG_INFO("attempting ioremap at 0x%08x len 0x%08x\n", - itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE); + IVTV_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n", + (u64)itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE); itv->reg_mem = ioremap_nocache(itv->base_addr + IVTV_REG_OFFSET, IVTV_REG_SIZE); if (!itv->reg_mem) { diff --git a/drivers/media/video/ivtv/ivtv-driver.h b/drivers/media/video/ivtv/ivtv-driver.h index 2e220028aad2..a7e00f8938f8 100644 --- a/drivers/media/video/ivtv/ivtv-driver.h +++ b/drivers/media/video/ivtv/ivtv-driver.h @@ -622,7 +622,7 @@ struct ivtv { struct v4l2_subdev *sd_video; /* controlling video decoder subdev */ struct v4l2_subdev *sd_audio; /* controlling audio subdev */ struct v4l2_subdev *sd_muxer; /* controlling audio muxer subdev */ - u32 base_addr; /* PCI resource base address */ + resource_size_t base_addr; /* PCI resource base address */ volatile void __iomem *enc_mem; /* pointer to mapped encoder memory */ volatile void __iomem *dec_mem; /* pointer to mapped decoder memory */ volatile void __iomem *reg_mem; /* pointer to mapped registers */ -- cgit v1.2.3-59-g8ed1b From 42d0c3ad28837a4a475c18b69160053fdb562976 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 26 May 2012 08:07:03 -0300 Subject: [media] cx18: support big-endian systems base_addr has type resource_size_t, which may be 64 bits. Also fix a few endian issues related to mailboxes and firmware loading. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx18/cx18-driver.c | 10 +++++----- drivers/media/video/cx18/cx18-driver.h | 2 +- drivers/media/video/cx18/cx18-firmware.c | 9 +++++++-- drivers/media/video/cx18/cx18-mailbox.c | 15 ++++++++++----- 4 files changed, 23 insertions(+), 13 deletions(-) diff --git a/drivers/media/video/cx18/cx18-driver.c b/drivers/media/video/cx18/cx18-driver.c index b55d57cc1a1c..7e5ffd6f5178 100644 --- a/drivers/media/video/cx18/cx18-driver.c +++ b/drivers/media/video/cx18/cx18-driver.c @@ -838,10 +838,10 @@ static int cx18_setup_pci(struct cx18 *cx, struct pci_dev *pci_dev, } CX18_DEBUG_INFO("cx%d (rev %d) at %02x:%02x.%x, " - "irq: %d, latency: %d, memory: 0x%lx\n", + "irq: %d, latency: %d, memory: 0x%llx\n", cx->pci_dev->device, cx->card_rev, pci_dev->bus->number, PCI_SLOT(pci_dev->devfn), PCI_FUNC(pci_dev->devfn), - cx->pci_dev->irq, pci_latency, (unsigned long)cx->base_addr); + cx->pci_dev->irq, pci_latency, (u64)cx->base_addr); return 0; } @@ -938,7 +938,7 @@ static int __devinit cx18_probe(struct pci_dev *pci_dev, if (retval) goto err; - CX18_DEBUG_INFO("base addr: 0x%08x\n", cx->base_addr); + CX18_DEBUG_INFO("base addr: 0x%llx\n", (u64)cx->base_addr); /* PCI Device Setup */ retval = cx18_setup_pci(cx, pci_dev, pci_id); @@ -946,8 +946,8 @@ static int __devinit cx18_probe(struct pci_dev *pci_dev, goto free_workqueues; /* map io memory */ - CX18_DEBUG_INFO("attempting ioremap at 0x%08x len 0x%08x\n", - cx->base_addr + CX18_MEM_OFFSET, CX18_MEM_SIZE); + CX18_DEBUG_INFO("attempting ioremap at 0x%llx len 0x%08x\n", + (u64)cx->base_addr + CX18_MEM_OFFSET, CX18_MEM_SIZE); cx->enc_mem = ioremap_nocache(cx->base_addr + CX18_MEM_OFFSET, CX18_MEM_SIZE); if (!cx->enc_mem) { diff --git a/drivers/media/video/cx18/cx18-driver.h b/drivers/media/video/cx18/cx18-driver.h index 7a37e0ee136f..2767c64df0c8 100644 --- a/drivers/media/video/cx18/cx18-driver.h +++ b/drivers/media/video/cx18/cx18-driver.h @@ -622,7 +622,7 @@ struct cx18 { unique ID. Starts at 1, so 0 can be used as uninitialized value in the stream->id. */ - u32 base_addr; + resource_size_t base_addr; u8 card_rev; void __iomem *enc_mem, *reg_mem; diff --git a/drivers/media/video/cx18/cx18-firmware.c b/drivers/media/video/cx18/cx18-firmware.c index 1b3fb502e6be..b85c292a849a 100644 --- a/drivers/media/video/cx18/cx18-firmware.c +++ b/drivers/media/video/cx18/cx18-firmware.c @@ -164,8 +164,13 @@ static int load_apu_fw_direct(const char *fn, u8 __iomem *dst, struct cx18 *cx, apu_version = (vers[0] << 24) | (vers[4] << 16) | vers[32]; while (offset + sizeof(seghdr) < fw->size) { - /* TODO: byteswapping */ - memcpy(&seghdr, src + offset / 4, sizeof(seghdr)); + const u32 *shptr = src + offset / 4; + + seghdr.sync1 = le32_to_cpu(shptr[0]); + seghdr.sync2 = le32_to_cpu(shptr[1]); + seghdr.addr = le32_to_cpu(shptr[2]); + seghdr.size = le32_to_cpu(shptr[3]); + offset += sizeof(seghdr); if (seghdr.sync1 != APU_ROM_SYNC1 || seghdr.sync2 != APU_ROM_SYNC2) { diff --git a/drivers/media/video/cx18/cx18-mailbox.c b/drivers/media/video/cx18/cx18-mailbox.c index ed8118390b02..eabf00c6351b 100644 --- a/drivers/media/video/cx18/cx18-mailbox.c +++ b/drivers/media/video/cx18/cx18-mailbox.c @@ -434,6 +434,7 @@ static int epu_dma_done_irq(struct cx18 *cx, struct cx18_in_work_order *order) { u32 handle, mdl_ack_offset, mdl_ack_count; struct cx18_mailbox *mb; + int i; mb = &order->mb; handle = mb->args[0]; @@ -447,8 +448,9 @@ static int epu_dma_done_irq(struct cx18 *cx, struct cx18_in_work_order *order) return -1; } - cx18_memcpy_fromio(cx, order->mdl_ack, cx->enc_mem + mdl_ack_offset, - sizeof(struct cx18_mdl_ack) * mdl_ack_count); + for (i = 0; i < sizeof(struct cx18_mdl_ack) * mdl_ack_count; i += sizeof(u32)) + ((u32 *)order->mdl_ack)[i / sizeof(u32)] = + cx18_readl(cx, cx->enc_mem + mdl_ack_offset + i); if ((order->flags & CX18_F_EWO_MB_STALE) == 0) mb_ack_irq(cx, order); @@ -538,6 +540,7 @@ void cx18_api_epu_cmd_irq(struct cx18 *cx, int rpu) struct cx18_mailbox *order_mb; struct cx18_in_work_order *order; int submit; + int i; switch (rpu) { case CPU: @@ -562,10 +565,12 @@ void cx18_api_epu_cmd_irq(struct cx18 *cx, int rpu) order_mb = &order->mb; /* mb->cmd and mb->args[0] through mb->args[2] */ - cx18_memcpy_fromio(cx, &order_mb->cmd, &mb->cmd, 4 * sizeof(u32)); + for (i = 0; i < 4; i++) + (&order_mb->cmd)[i] = cx18_readl(cx, &mb->cmd + i); + /* mb->request and mb->ack. N.B. we want to read mb->ack last */ - cx18_memcpy_fromio(cx, &order_mb->request, &mb->request, - 2 * sizeof(u32)); + for (i = 0; i < 2; i++) + (&order_mb->request)[i] = cx18_readl(cx, &mb->request + i); if (order_mb->request == order_mb->ack) { CX18_DEBUG_WARN("Possibly falling behind: %s self-ack'ed our " -- cgit v1.2.3-59-g8ed1b From 6ba4c432dcc8686b8493de5733ce7c986364730e Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 26 May 2012 09:28:02 -0300 Subject: [media] cx88: fix firmware load on big-endian systems Tested with a HVR-1300. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx88/cx88-blackbird.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/cx88/cx88-blackbird.c b/drivers/media/video/cx88/cx88-blackbird.c index e46446a449c0..ed7b2aa1ed83 100644 --- a/drivers/media/video/cx88/cx88-blackbird.c +++ b/drivers/media/video/cx88/cx88-blackbird.c @@ -471,7 +471,7 @@ static int blackbird_load_firmware(struct cx8802_dev *dev) dprintk(1,"Loading firmware ...\n"); dataptr = (u32*)firmware->data; for (i = 0; i < (firmware->size >> 2); i++) { - value = *dataptr; + value = le32_to_cpu(*dataptr); checksum += ~value; memory_write(dev->core, i, value); dataptr++; -- cgit v1.2.3-59-g8ed1b From de87897af08081aecb0c0bbc5fa01a8640e2d74c Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Wed, 6 Jun 2012 01:46:50 -0300 Subject: [media] bw-qcam: driver and pixfmt documentation fixes Fix the documentation of the Y4 and Y6 formats. Fix a poll() issue, add support for enum_frmsizes, set the proper parent device and fix a few compliance issues. Tested with an actual Connectix B&W parallel port webcam, both on a little-endian and a big-endian platform. This driver has never been so good, doing 320x240 at 1 frame per second :-) I know, nobody cares, but still it is cool that linux can still support this old webcam. Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/pixfmt.xml | 4 +-- drivers/media/video/bw-qcam.c | 47 +++++++++++++++++++++++------- 2 files changed, 39 insertions(+), 12 deletions(-) diff --git a/Documentation/DocBook/media/v4l/pixfmt.xml b/Documentation/DocBook/media/v4l/pixfmt.xml index f5ac15ed0549..e58934c92895 100644 --- a/Documentation/DocBook/media/v4l/pixfmt.xml +++ b/Documentation/DocBook/media/v4l/pixfmt.xml @@ -986,13 +986,13 @@ http://www.thedirks.org/winnov/ V4L2_PIX_FMT_Y4 'Y04 ' - Old 4-bit greyscale format. Only the least significant 4 bits of each byte are used, + Old 4-bit greyscale format. Only the most significant 4 bits of each byte are used, the other bits are set to 0. V4L2_PIX_FMT_Y6 'Y06 ' - Old 6-bit greyscale format. Only the least significant 6 bits of each byte are used, + Old 6-bit greyscale format. Only the most significant 6 bits of each byte are used, the other bits are set to 0. diff --git a/drivers/media/video/bw-qcam.c b/drivers/media/video/bw-qcam.c index 2520219f01ba..5b75a64b199b 100644 --- a/drivers/media/video/bw-qcam.c +++ b/drivers/media/video/bw-qcam.c @@ -607,8 +607,9 @@ static long qc_capture(struct qcam *q, char __user *buf, unsigned long len) } o = i * pixels_per_line + pixels_read + k; if (o < len) { + u8 ch = invert - buffer[k]; got++; - put_user((invert - buffer[k]) << shift, buf + o); + put_user(ch << shift, buf + o); } } pixels_read += bytes; @@ -648,8 +649,8 @@ static int qcam_querycap(struct file *file, void *priv, struct qcam *qcam = video_drvdata(file); strlcpy(vcap->driver, qcam->v4l2_dev.name, sizeof(vcap->driver)); - strlcpy(vcap->card, "B&W Quickcam", sizeof(vcap->card)); - strlcpy(vcap->bus_info, "parport", sizeof(vcap->bus_info)); + strlcpy(vcap->card, "Connectix B&W Quickcam", sizeof(vcap->card)); + strlcpy(vcap->bus_info, qcam->pport->name, sizeof(vcap->bus_info)); vcap->device_caps = V4L2_CAP_VIDEO_CAPTURE | V4L2_CAP_READWRITE; vcap->capabilities = vcap->device_caps | V4L2_CAP_DEVICE_CAPS; return 0; @@ -688,8 +689,8 @@ static int qcam_g_fmt_vid_cap(struct file *file, void *fh, struct v4l2_format *f pix->height = qcam->height / qcam->transfer_scale; pix->pixelformat = (qcam->bpp == 4) ? V4L2_PIX_FMT_Y4 : V4L2_PIX_FMT_Y6; pix->field = V4L2_FIELD_NONE; - pix->bytesperline = qcam->width; - pix->sizeimage = qcam->width * qcam->height; + pix->bytesperline = pix->width; + pix->sizeimage = pix->width * pix->height; /* Just a guess */ pix->colorspace = V4L2_COLORSPACE_SRGB; return 0; @@ -757,7 +758,7 @@ static int qcam_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdes "4-Bit Monochrome", V4L2_PIX_FMT_Y4, { 0, 0, 0, 0 } }, - { 0, 0, 0, + { 1, 0, 0, "6-Bit Monochrome", V4L2_PIX_FMT_Y6, { 0, 0, 0, 0 } }, @@ -772,6 +773,25 @@ static int qcam_enum_fmt_vid_cap(struct file *file, void *fh, struct v4l2_fmtdes return 0; } +static int qcam_enum_framesizes(struct file *file, void *fh, + struct v4l2_frmsizeenum *fsize) +{ + static const struct v4l2_frmsize_discrete sizes[] = { + { 80, 60 }, + { 160, 120 }, + { 320, 240 }, + }; + + if (fsize->index > 2) + return -EINVAL; + if (fsize->pixel_format != V4L2_PIX_FMT_Y4 && + fsize->pixel_format != V4L2_PIX_FMT_Y6) + return -EINVAL; + fsize->type = V4L2_FRMSIZE_TYPE_DISCRETE; + fsize->discrete = sizes[fsize->index]; + return 0; +} + static ssize_t qcam_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { @@ -795,6 +815,11 @@ static ssize_t qcam_read(struct file *file, char __user *buf, return len; } +static unsigned int qcam_poll(struct file *filp, poll_table *wait) +{ + return v4l2_ctrl_poll(filp, wait) | POLLIN | POLLRDNORM; +} + static int qcam_s_ctrl(struct v4l2_ctrl *ctrl) { struct qcam *qcam = @@ -828,7 +853,7 @@ static const struct v4l2_file_operations qcam_fops = { .owner = THIS_MODULE, .open = v4l2_fh_open, .release = v4l2_fh_release, - .poll = v4l2_ctrl_poll, + .poll = qcam_poll, .unlocked_ioctl = video_ioctl2, .read = qcam_read, }; @@ -839,6 +864,7 @@ static const struct v4l2_ioctl_ops qcam_ioctl_ops = { .vidioc_s_input = qcam_s_input, .vidioc_enum_input = qcam_enum_input, .vidioc_enum_fmt_vid_cap = qcam_enum_fmt_vid_cap, + .vidioc_enum_framesizes = qcam_enum_framesizes, .vidioc_g_fmt_vid_cap = qcam_g_fmt_vid_cap, .vidioc_s_fmt_vid_cap = qcam_s_fmt_vid_cap, .vidioc_try_fmt_vid_cap = qcam_try_fmt_vid_cap, @@ -864,9 +890,9 @@ static struct qcam *qcam_init(struct parport *port) return NULL; v4l2_dev = &qcam->v4l2_dev; - strlcpy(v4l2_dev->name, "bw-qcam", sizeof(v4l2_dev->name)); + snprintf(v4l2_dev->name, sizeof(v4l2_dev->name), "bw-qcam%d", num_cams); - if (v4l2_device_register(NULL, v4l2_dev) < 0) { + if (v4l2_device_register(port->dev, v4l2_dev) < 0) { v4l2_err(v4l2_dev, "Could not register v4l2_device\n"); kfree(qcam); return NULL; @@ -886,7 +912,7 @@ static struct qcam *qcam_init(struct parport *port) return NULL; } qcam->pport = port; - qcam->pdev = parport_register_device(port, "bw-qcam", NULL, NULL, + qcam->pdev = parport_register_device(port, v4l2_dev->name, NULL, NULL, NULL, 0, NULL); if (qcam->pdev == NULL) { v4l2_err(v4l2_dev, "couldn't register for %s.\n", port->name); @@ -975,6 +1001,7 @@ static int init_bwqcam(struct parport *port) return -ENODEV; } qc_calibrate(qcam); + v4l2_ctrl_handler_setup(&qcam->hdl); parport_release(qcam->pdev); -- cgit v1.2.3-59-g8ed1b From ae10ccdc3093486f8c2369d227583f9d79f628e5 Mon Sep 17 00:00:00 2001 From: Feng Tang Date: Mon, 4 Jun 2012 15:00:04 +0800 Subject: ACPI: Make acpi_skip_timer_override cover all source_irq==0 cases Currently when acpi_skip_timer_override is set, it only cover the (source_irq == 0 && global_irq == 2) cases. While there is also platform which need use this option and its global_irq is not 2. This patch will extend acpi_skip_timer_override to cover all timer overriding cases as long as the source irq is 0. This is the first part of a fix to kernel bug bugzilla 40002: "IRQ 0 assigned to VGA" https://bugzilla.kernel.org/show_bug.cgi?id=40002 Reported-and-tested-by: Szymon Kowalczyk Signed-off-by: Feng Tang Signed-off-by: Len Brown --- arch/x86/kernel/acpi/boot.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 8afb69319815..e7c698e9c7ec 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -422,12 +422,14 @@ acpi_parse_int_src_ovr(struct acpi_subtable_header * header, return 0; } - if (intsrc->source_irq == 0 && intsrc->global_irq == 2) { + if (intsrc->source_irq == 0) { if (acpi_skip_timer_override) { - printk(PREFIX "BIOS IRQ0 pin2 override ignored.\n"); + printk(PREFIX "BIOS IRQ0 override ignored.\n"); return 0; } - if (acpi_fix_pin2_polarity && (intsrc->inti_flags & ACPI_MADT_POLARITY_MASK)) { + + if ((intsrc->global_irq == 2) && acpi_fix_pin2_polarity + && (intsrc->inti_flags & ACPI_MADT_POLARITY_MASK)) { intsrc->inti_flags &= ~ACPI_MADT_POLARITY_MASK; printk(PREFIX "BIOS IRQ0 pin2 override: forcing polarity to high active.\n"); } @@ -1334,7 +1336,7 @@ static int __init dmi_disable_acpi(const struct dmi_system_id *d) } /* - * Force ignoring BIOS IRQ0 pin2 override + * Force ignoring BIOS IRQ0 override */ static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d) { @@ -1344,7 +1346,7 @@ static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d) */ if (!acpi_skip_timer_override) { WARN(1, KERN_ERR "ati_ixp4x0 quirk not complete.\n"); - pr_notice("%s detected: Ignoring BIOS IRQ0 pin2 override\n", + pr_notice("%s detected: Ignoring BIOS IRQ0 override\n", d->ident); acpi_skip_timer_override = 1; } @@ -1438,7 +1440,7 @@ static struct dmi_system_id __initdata acpi_dmi_table_late[] = { * is enabled. This input is incorrectly designated the * ISA IRQ 0 via an interrupt source override even though * it is wired to the output of the master 8259A and INTIN0 - * is not connected at all. Force ignoring BIOS IRQ0 pin2 + * is not connected at all. Force ignoring BIOS IRQ0 * override in that cases. */ { -- cgit v1.2.3-59-g8ed1b From 7f68b4c2e158019c2ec494b5cfbd9c83b4e5b253 Mon Sep 17 00:00:00 2001 From: Feng Tang Date: Mon, 4 Jun 2012 15:00:05 +0800 Subject: ACPI: Remove one board specific WARN when ignoring timer overriding Current WARN msg is only for the ati_ixp4x0 board, while this function is used by mulitple platforms. So this one board specific warning is not appropriate any more. Signed-off-by: Feng Tang Signed-off-by: Len Brown --- arch/x86/kernel/acpi/boot.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index e7c698e9c7ec..3a6afba6eca7 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -1340,12 +1340,7 @@ static int __init dmi_disable_acpi(const struct dmi_system_id *d) */ static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d) { - /* - * The ati_ixp4x0_rev() early PCI quirk should have set - * the acpi_skip_timer_override flag already: - */ if (!acpi_skip_timer_override) { - WARN(1, KERN_ERR "ati_ixp4x0 quirk not complete.\n"); pr_notice("%s detected: Ignoring BIOS IRQ0 override\n", d->ident); acpi_skip_timer_override = 1; -- cgit v1.2.3-59-g8ed1b From f6b54f083cc66cf9b11d2120d8df3c2ad4e0836d Mon Sep 17 00:00:00 2001 From: Feng Tang Date: Mon, 4 Jun 2012 15:00:06 +0800 Subject: ACPI: Add a quirk for "AMILO PRO V2030" to ignore the timer overriding This is the 2nd part of fix for kernel bugzilla 40002: "IRQ 0 assigned to VGA" https://bugzilla.kernel.org/show_bug.cgi?id=40002 The root cause is the buggy FW, whose ACPI tables assign the GSI 16 to 2 irqs 0 and 16(VGA), and the VGA is the right owner of GSI 16. So add a quirk to ignore the irq0 overriding GSI 16 for the FUJITSU SIEMENS AMILO PRO V2030 platform will solve this issue. Reported-and-tested-by: Szymon Kowalczyk Signed-off-by: Feng Tang Signed-off-by: Len Brown --- arch/x86/kernel/acpi/boot.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 3a6afba6eca7..b2297e58c6ed 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -1470,6 +1470,14 @@ static struct dmi_system_id __initdata acpi_dmi_table_late[] = { DMI_MATCH(DMI_PRODUCT_NAME, "HP Compaq 6715b"), }, }, + { + .callback = dmi_ignore_irq0_timer_override, + .ident = "FUJITSU SIEMENS", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"), + DMI_MATCH(DMI_PRODUCT_NAME, "AMILO PRO V2030"), + }, + }, {} }; -- cgit v1.2.3-59-g8ed1b From 78b10615ad295393a7d66ea57218171c0a07c059 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 11 Jun 2012 16:35:50 -0700 Subject: staging/comedi: fix build for USB not enabled Calls to optional subsystems cannot be made indiscriminately. Enclose all of the usb helper functions inside #if IS_ENABLED(CONFIG_USB) to fix these build errors. (The pci helper functions are OK since there are stubs in linux/pci.h for the called functions when PCI is not enabled. Possibly the same could be done for the called USB functions.) ERROR: "usb_deregister" [drivers/staging/comedi/comedi.ko] undefined! ERROR: "usb_register_driver" [drivers/staging/comedi/comedi.ko] undefined! Signed-off-by: Randy Dunlap Cc: Ian Abbott Cc: Frank Mori Hess Signed-off-by: Greg Kroah-Hartman --- drivers/staging/comedi/drivers.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/staging/comedi/drivers.c b/drivers/staging/comedi/drivers.c index 1c3d6386ea36..aeac1caba3f9 100644 --- a/drivers/staging/comedi/drivers.c +++ b/drivers/staging/comedi/drivers.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include #include @@ -981,6 +982,8 @@ void comedi_pci_driver_unregister(struct comedi_driver *comedi_driver, } EXPORT_SYMBOL_GPL(comedi_pci_driver_unregister); +#if IS_ENABLED(CONFIG_USB) + static int comedi_old_usb_auto_config(struct usb_interface *intf, struct comedi_driver *driver) { @@ -1043,3 +1046,5 @@ void comedi_usb_driver_unregister(struct comedi_driver *comedi_driver, comedi_driver_unregister(comedi_driver); } EXPORT_SYMBOL_GPL(comedi_usb_driver_unregister); + +#endif -- cgit v1.2.3-59-g8ed1b From 08224262adefb5e6460888b2490a96e1bc28aef5 Mon Sep 17 00:00:00 2001 From: Bart Westgeest Date: Mon, 11 Jun 2012 12:13:08 -0400 Subject: staging: usbip: bugfix for stack corruption on 64-bit architectures Previously a 6 byte array (buf) was erroneously cast to a 8 byte long (event_bits) on 64-bit architectures which caused a stack corruption. Signed-off-by: Bart Westgeest Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/usbip/vhci_hcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c index f708cbaee16b..117a7ad9fdb1 100644 --- a/drivers/staging/usbip/vhci_hcd.c +++ b/drivers/staging/usbip/vhci_hcd.c @@ -205,7 +205,7 @@ static int vhci_hub_status(struct usb_hcd *hcd, char *buf) int retval = 0; /* the enough buffer is allocated according to USB_MAXCHILDREN */ - unsigned long *event_bits = (unsigned long *) buf; + u32 *event_bits = (unsigned long *) buf; int rhport; int changed = 0; -- cgit v1.2.3-59-g8ed1b From c475c06f4bb689d6ad87d7512e036d6dface3160 Mon Sep 17 00:00:00 2001 From: Peter Korsgaard Date: Tue, 12 Jun 2012 08:27:04 +0800 Subject: hwrng: atmel-rng - fix data valid check Brown paper bag: Data valid is LSB of the ISR (status register), and NOT of ODATA (current random data word)! With this, rngtest is a lot happier. Before: rngtest 3 Copyright (c) 2004 by Henrique de Moraes Holschuh This is free software; see the source for copying conditions. There is NO warr. rngtest: starting FIPS tests... rngtest: bits received from input: 20000032 rngtest: FIPS 140-2 successes: 3 rngtest: FIPS 140-2 failures: 997 rngtest: FIPS 140-2(2001-10-10) Monobit: 604 rngtest: FIPS 140-2(2001-10-10) Poker: 996 rngtest: FIPS 140-2(2001-10-10) Runs: 36 rngtest: FIPS 140-2(2001-10-10) Long run: 0 rngtest: FIPS 140-2(2001-10-10) Continuous run: 117 rngtest: input channel speed: (min=622.371; avg=23682.481; max=28224.350)Kibitss rngtest: FIPS tests speed: (min=12.361; avg=12.718; max=12.861)Mibits/s rngtest: Program run time: 2331696 microsecondsx After: rngtest 3 Copyright (c) 2004 by Henrique de Moraes Holschuh This is free software; see the source for copying conditions. There is NO warr. rngtest: starting FIPS tests... rngtest: bits received from input: 20000032 rngtest: FIPS 140-2 successes: 999 rngtest: FIPS 140-2 failures: 1 rngtest: FIPS 140-2(2001-10-10) Monobit: 0 rngtest: FIPS 140-2(2001-10-10) Poker: 0 rngtest: FIPS 140-2(2001-10-10) Runs: 1 rngtest: FIPS 140-2(2001-10-10) Long run: 0 rngtest: FIPS 140-2(2001-10-10) Continuous run: 0 rngtest: input channel speed: (min=777.363; avg=43588.270; max=47870.711)Kibitss rngtest: FIPS tests speed: (min=11.943; avg=12.716; max=12.844)Mibits/s rngtest: Program run time: 1955282 microseconds Cc: stable@vger.kernel.org Signed-off-by: Peter Korsgaard Reported-by: George Pontis Acked-by: Nicolas Ferre Signed-off-by: Herbert Xu --- drivers/char/hw_random/atmel-rng.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/char/hw_random/atmel-rng.c b/drivers/char/hw_random/atmel-rng.c index 6289f0eee24c..731c9046cf7b 100644 --- a/drivers/char/hw_random/atmel-rng.c +++ b/drivers/char/hw_random/atmel-rng.c @@ -34,7 +34,7 @@ static int atmel_trng_read(struct hwrng *rng, void *buf, size_t max, u32 *data = buf; /* data ready? */ - if (readl(trng->base + TRNG_ODATA) & 1) { + if (readl(trng->base + TRNG_ISR) & 1) { *data = readl(trng->base + TRNG_ODATA); /* ensure data ready is only set again AFTER the next data -- cgit v1.2.3-59-g8ed1b From 8f321f853ea33330c7141977cd34804476e2e07e Mon Sep 17 00:00:00 2001 From: Szymon Janc Date: Fri, 8 Jun 2012 11:33:33 +0200 Subject: Bluetooth: Fix using uninitialized option in RFCMode If remote device sends bogus RFC option with invalid length, undefined options values are used. Fix this by using defaults when remote misbehaves. This also fixes the following warning reported by gcc 4.7.0: net/bluetooth/l2cap_core.c: In function 'l2cap_config_rsp': net/bluetooth/l2cap_core.c:3302:13: warning: 'rfc.max_pdu_size' may be used uninitialized in this function [-Wmaybe-uninitialized] net/bluetooth/l2cap_core.c:3266:24: note: 'rfc.max_pdu_size' was declared here net/bluetooth/l2cap_core.c:3298:25: warning: 'rfc.monitor_timeout' may be used uninitialized in this function [-Wmaybe-uninitialized] net/bluetooth/l2cap_core.c:3266:24: note: 'rfc.monitor_timeout' was declared here net/bluetooth/l2cap_core.c:3297:25: warning: 'rfc.retrans_timeout' may be used uninitialized in this function [-Wmaybe-uninitialized] net/bluetooth/l2cap_core.c:3266:24: note: 'rfc.retrans_timeout' was declared here net/bluetooth/l2cap_core.c:3295:2: warning: 'rfc.mode' may be used uninitialized in this function [-Wmaybe-uninitialized] net/bluetooth/l2cap_core.c:3266:24: note: 'rfc.mode' was declared here Signed-off-by: Szymon Janc Signed-off-by: Gustavo Padovan --- net/bluetooth/l2cap_core.c | 14 ++++++++------ 1 file changed, 8 insertions(+), 6 deletions(-) diff --git a/net/bluetooth/l2cap_core.c b/net/bluetooth/l2cap_core.c index 8394e3615ef6..4554e80d16a3 100644 --- a/net/bluetooth/l2cap_core.c +++ b/net/bluetooth/l2cap_core.c @@ -2915,12 +2915,14 @@ static void l2cap_conf_rfc_get(struct l2cap_chan *chan, void *rsp, int len) while (len >= L2CAP_CONF_OPT_SIZE) { len -= l2cap_get_conf_opt(&rsp, &type, &olen, &val); - switch (type) { - case L2CAP_CONF_RFC: - if (olen == sizeof(rfc)) - memcpy(&rfc, (void *)val, olen); - goto done; - } + if (type != L2CAP_CONF_RFC) + continue; + + if (olen != sizeof(rfc)) + break; + + memcpy(&rfc, (void *)val, olen); + goto done; } /* Use sane default values in case a misbehaving remote device -- cgit v1.2.3-59-g8ed1b From 6c4ae5c2e7bfbb7d10d73611f69ac8a8609d84fd Mon Sep 17 00:00:00 2001 From: Giancarlo Formicuccia Date: Sun, 10 Jun 2012 08:33:11 +0200 Subject: Bluetooth: add support for atheros 0930:0219 Add support for the AR3012 chip found on the Toshiba Sallite M840-1000-XQ. usb-devices shows: T: Bus=01 Lev=02 Prnt=02 Port=02 Cnt=01 Dev#= 5 Spd=12 MxCh= 0 D: Ver= 1.10 Cls=e0(wlcon) Sub=01 Prot=01 MxPS=64 #Cfgs= 1 P: Vendor=0930 ProdID=0219 Rev=00.02 S: Manufacturer=Atheros Communications S: Product=Bluetooth USB Host Controller S: SerialNumber=Alaska Day 2006 C: #Ifs= 2 Cfg#= 1 Atr=e0 MxPwr=100mA I: If#= 0 Alt= 0 #EPs= 3 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb I: If#= 1 Alt= 0 #EPs= 2 Cls=e0(wlcon) Sub=01 Prot=01 Driver=btusb Signed-off-by: Giancarlo Formicuccia Signed-off-by: Gustavo Padovan --- drivers/bluetooth/ath3k.c | 2 ++ drivers/bluetooth/btusb.c | 1 + 2 files changed, 3 insertions(+) diff --git a/drivers/bluetooth/ath3k.c b/drivers/bluetooth/ath3k.c index f0f62021227f..10308cd8a7ed 100644 --- a/drivers/bluetooth/ath3k.c +++ b/drivers/bluetooth/ath3k.c @@ -78,6 +78,7 @@ static struct usb_device_id ath3k_table[] = { { USB_DEVICE(0x04CA, 0x3005) }, { USB_DEVICE(0x13d3, 0x3362) }, { USB_DEVICE(0x0CF3, 0xE004) }, + { USB_DEVICE(0x0930, 0x0219) }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xE02C) }, @@ -102,6 +103,7 @@ static struct usb_device_id ath3k_blist_tbl[] = { { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU22 with sflash firmware */ { USB_DEVICE(0x0489, 0xE03C), .driver_info = BTUSB_ATH3012 }, diff --git a/drivers/bluetooth/btusb.c b/drivers/bluetooth/btusb.c index ff3eabc45ff5..83ebb241bfcc 100644 --- a/drivers/bluetooth/btusb.c +++ b/drivers/bluetooth/btusb.c @@ -140,6 +140,7 @@ static struct usb_device_id blacklist_table[] = { { USB_DEVICE(0x04ca, 0x3005), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x13d3, 0x3362), .driver_info = BTUSB_ATH3012 }, { USB_DEVICE(0x0cf3, 0xe004), .driver_info = BTUSB_ATH3012 }, + { USB_DEVICE(0x0930, 0x0219), .driver_info = BTUSB_ATH3012 }, /* Atheros AR5BBU12 with sflash firmware */ { USB_DEVICE(0x0489, 0xe02c), .driver_info = BTUSB_IGNORE }, -- cgit v1.2.3-59-g8ed1b From 3419ae781f1592b3d367107db6500090495490cd Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Mon, 11 Jun 2012 11:27:19 -0600 Subject: ASoC: tegra+wm8903: turn of mic detect when card is removed If mic detect is left enabled and the WM8903 detects a status change, the WM8903 driver will make a callback against the free()d jack, which will cause a crash. This problem can be triggered by fully initializing an audio card, then removing and re-inserting the machine driver module. Signed-off-by: Stephen Warren Signed-off-by: Mark Brown --- sound/soc/tegra/tegra_wm8903.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/sound/soc/tegra/tegra_wm8903.c b/sound/soc/tegra/tegra_wm8903.c index 0b0df49d9d33..3b6da91188a9 100644 --- a/sound/soc/tegra/tegra_wm8903.c +++ b/sound/soc/tegra/tegra_wm8903.c @@ -346,6 +346,17 @@ static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd) return 0; } +static int tegra_wm8903_remove(struct snd_soc_card *card) +{ + struct snd_soc_pcm_runtime *rtd = &(card->rtd[0]); + struct snd_soc_dai *codec_dai = rtd->codec_dai; + struct snd_soc_codec *codec = codec_dai->codec; + + wm8903_mic_detect(codec, NULL, 0, 0); + + return 0; +} + static struct snd_soc_dai_link tegra_wm8903_dai = { .name = "WM8903", .stream_name = "WM8903 PCM", @@ -363,6 +374,8 @@ static struct snd_soc_card snd_soc_tegra_wm8903 = { .dai_link = &tegra_wm8903_dai, .num_links = 1, + .remove = tegra_wm8903_remove, + .controls = tegra_wm8903_controls, .num_controls = ARRAY_SIZE(tegra_wm8903_controls), .dapm_widgets = tegra_wm8903_dapm_widgets, -- cgit v1.2.3-59-g8ed1b From 34ddeb035d704eafdcdb3cbc781894300136c3c4 Mon Sep 17 00:00:00 2001 From: Huang Ying Date: Tue, 12 Jun 2012 11:20:19 +0800 Subject: ACPI, APEI, Avoid too much error reporting in runtime This patch fixed the following bug. https://bugzilla.kernel.org/show_bug.cgi?id=43282 This is caused by a firmware bug checking (checking generic address register provided by firmware) in runtime. The checking should be done in address mapping time instead of runtime to avoid too much error reporting in runtime. Reported-by: Pawel Sikora Signed-off-by: Huang Ying Tested-by: Jean Delvare Cc: stable@vger.kernel.org Signed-off-by: Len Brown --- drivers/acpi/apei/apei-base.c | 17 +++++++++++++++-- drivers/acpi/apei/apei-internal.h | 9 +++++++++ drivers/acpi/apei/ghes.c | 6 +++--- 3 files changed, 27 insertions(+), 5 deletions(-) diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c index 5577762daee1..6686b1eaf13e 100644 --- a/drivers/acpi/apei/apei-base.c +++ b/drivers/acpi/apei/apei-base.c @@ -243,7 +243,7 @@ static int pre_map_gar_callback(struct apei_exec_context *ctx, u8 ins = entry->instruction; if (ctx->ins_table[ins].flags & APEI_EXEC_INS_ACCESS_REGISTER) - return acpi_os_map_generic_address(&entry->register_region); + return apei_map_generic_address(&entry->register_region); return 0; } @@ -276,7 +276,7 @@ static int post_unmap_gar_callback(struct apei_exec_context *ctx, u8 ins = entry->instruction; if (ctx->ins_table[ins].flags & APEI_EXEC_INS_ACCESS_REGISTER) - acpi_os_unmap_generic_address(&entry->register_region); + apei_unmap_generic_address(&entry->register_region); return 0; } @@ -606,6 +606,19 @@ static int apei_check_gar(struct acpi_generic_address *reg, u64 *paddr, return 0; } +int apei_map_generic_address(struct acpi_generic_address *reg) +{ + int rc; + u32 access_bit_width; + u64 address; + + rc = apei_check_gar(reg, &address, &access_bit_width); + if (rc) + return rc; + return acpi_os_map_generic_address(reg); +} +EXPORT_SYMBOL_GPL(apei_map_generic_address); + /* read GAR in interrupt (including NMI) or process context */ int apei_read(u64 *val, struct acpi_generic_address *reg) { diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h index cca240a33038..f220d642136e 100644 --- a/drivers/acpi/apei/apei-internal.h +++ b/drivers/acpi/apei/apei-internal.h @@ -7,6 +7,8 @@ #define APEI_INTERNAL_H #include +#include +#include struct apei_exec_context; @@ -68,6 +70,13 @@ static inline int apei_exec_run_optional(struct apei_exec_context *ctx, u8 actio /* IP has been set in instruction function */ #define APEI_EXEC_SET_IP 1 +int apei_map_generic_address(struct acpi_generic_address *reg); + +static inline void apei_unmap_generic_address(struct acpi_generic_address *reg) +{ + acpi_os_unmap_generic_address(reg); +} + int apei_read(u64 *val, struct acpi_generic_address *reg); int apei_write(u64 val, struct acpi_generic_address *reg); diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index 9b3cac0abecc..1599566ed1fe 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -301,7 +301,7 @@ static struct ghes *ghes_new(struct acpi_hest_generic *generic) if (!ghes) return ERR_PTR(-ENOMEM); ghes->generic = generic; - rc = acpi_os_map_generic_address(&generic->error_status_address); + rc = apei_map_generic_address(&generic->error_status_address); if (rc) goto err_free; error_block_length = generic->error_block_length; @@ -321,7 +321,7 @@ static struct ghes *ghes_new(struct acpi_hest_generic *generic) return ghes; err_unmap: - acpi_os_unmap_generic_address(&generic->error_status_address); + apei_unmap_generic_address(&generic->error_status_address); err_free: kfree(ghes); return ERR_PTR(rc); @@ -330,7 +330,7 @@ err_free: static void ghes_fini(struct ghes *ghes) { kfree(ghes->estatus); - acpi_os_unmap_generic_address(&ghes->generic->error_status_address); + apei_unmap_generic_address(&ghes->generic->error_status_address); } enum { -- cgit v1.2.3-59-g8ed1b From 2177905ca7419c49910d47e38e44790affd918cc Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Mon, 11 Jun 2012 23:56:09 -0700 Subject: Input: fix input.h kernel-doc warning Fix kernel-doc warning in input.h: Warning(include/linux/input.h:140): No description found for parameter 'len' Signed-off-by: Randy Dunlap Signed-off-by: Dmitry Torokhov --- include/linux/input.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/input.h b/include/linux/input.h index a81671453575..2740d080ec6b 100644 --- a/include/linux/input.h +++ b/include/linux/input.h @@ -116,6 +116,7 @@ struct input_keymap_entry { /** * EVIOCGMTSLOTS(len) - get MT slot values + * @len: size of the data buffer in bytes * * The ioctl buffer argument should be binary equivalent to * -- cgit v1.2.3-59-g8ed1b From 2347fc440558993013e8132791c409239da4fc0d Mon Sep 17 00:00:00 2001 From: Ben Collins Date: Sun, 10 Jun 2012 16:15:17 -0400 Subject: usb: gadget: Complete fsl qe/udc driver conversion commit ec39e2ae (usb: gadget: Update fsl_qe_udc to use usb_endpoint_descriptor inside the struct usb_ep) did not completely convert the fsl gadget drivers to use the desc in usb_ep as described in commit messages. Fix the macros that were still referencing the old pointer. Signed-off-by: Ben Collins Cc: Ido Shayevitz [ balbi@ti.com : brush up commit log a bit ] Signed-off-by: Felipe Balbi --- drivers/usb/gadget/fsl_qe_udc.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/usb/gadget/fsl_qe_udc.h b/drivers/usb/gadget/fsl_qe_udc.h index 4c07ca9cebf3..7026919fc901 100644 --- a/drivers/usb/gadget/fsl_qe_udc.h +++ b/drivers/usb/gadget/fsl_qe_udc.h @@ -153,10 +153,10 @@ struct usb_ep_para{ #define USB_BUSMODE_DTB 0x02 /* Endpoint basic handle */ -#define ep_index(EP) ((EP)->desc->bEndpointAddress & 0xF) +#define ep_index(EP) ((EP)->ep.desc->bEndpointAddress & 0xF) #define ep_maxpacket(EP) ((EP)->ep.maxpacket) #define ep_is_in(EP) ((ep_index(EP) == 0) ? (EP->udc->ep0_dir == \ - USB_DIR_IN) : ((EP)->desc->bEndpointAddress \ + USB_DIR_IN) : ((EP)->ep.desc->bEndpointAddress \ & USB_DIR_IN) == USB_DIR_IN) /* ep0 transfer state */ -- cgit v1.2.3-59-g8ed1b From 1dd45581e6dc98467c539ea67ae5c847646f0efd Mon Sep 17 00:00:00 2001 From: Ashok Nagarajan Date: Mon, 11 Jun 2012 10:23:35 -0700 Subject: mac80211: add missing kernel-doc Add a few kernel-doc descriptions that were missed during mesh development. Reported-by: Randy Dunlap Signed-off-by: Ashok Nagarajan Acked-by: Randy Dunlap Signed-off-by: Johannes Berg --- net/mac80211/sta_info.h | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/mac80211/sta_info.h b/net/mac80211/sta_info.h index 525ce5077e1c..a470e1123a55 100644 --- a/net/mac80211/sta_info.h +++ b/net/mac80211/sta_info.h @@ -271,6 +271,9 @@ struct sta_ampdu_mlme { * @plink_timer: peer link watch timer * @plink_timer_was_running: used by suspend/resume to restore timers * @t_offset: timing offset relative to this host + * @t_offset_setpoint: reference timing offset of this sta to be used when + * calculating clockdrift + * @ch_type: peer's channel type * @debugfs: debug filesystem info * @dead: set to true when sta is unlinked * @uploaded: set to true when sta is uploaded to the driver -- cgit v1.2.3-59-g8ed1b From 6878c32e5cc0e40980abe51d1f02fb453e27493e Mon Sep 17 00:00:00 2001 From: Konrad Rzeszutek Wilk Date: Fri, 25 May 2012 17:34:51 -0400 Subject: xen/blkfront: Add WARN to deal with misbehaving backends. Part of the ring structure is the 'id' field which is under control of the frontend. The frontend stamps it with "some" value (this some in this implementation being a value less than BLK_RING_SIZE), and when it gets a response expects said value to be in the response structure. We have a check for the id field when spolling new requests but not when de-spolling responses. We also add an extra check in add_id_to_freelist to make sure that the 'struct request' was not NULL - as we cannot pass a NULL to __blk_end_request_all, otherwise that crashes (and all the operations that the response is dealing with end up with __blk_end_request_all). Lastly we also print the name of the operation that failed. [v1: s/BUG/WARN/ suggested by Stefano] [v2: Add extra check in add_id_to_freelist] [v3: Redid op_name per Jan's suggestion] [v4: add const * and add WARN on failure returns] Acked-by: Jan Beulich Acked-by: Stefano Stabellini Signed-off-by: Konrad Rzeszutek Wilk --- drivers/block/xen-blkfront.c | 58 +++++++++++++++++++++++++++++++++++--------- 1 file changed, 46 insertions(+), 12 deletions(-) diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c index 60eed4bdd2e4..e4fb3374dcd2 100644 --- a/drivers/block/xen-blkfront.c +++ b/drivers/block/xen-blkfront.c @@ -141,14 +141,36 @@ static int get_id_from_freelist(struct blkfront_info *info) return free; } -static void add_id_to_freelist(struct blkfront_info *info, +static int add_id_to_freelist(struct blkfront_info *info, unsigned long id) { + if (info->shadow[id].req.u.rw.id != id) + return -EINVAL; + if (info->shadow[id].request == NULL) + return -EINVAL; info->shadow[id].req.u.rw.id = info->shadow_free; info->shadow[id].request = NULL; info->shadow_free = id; + return 0; } +static const char *op_name(int op) +{ + static const char *const names[] = { + [BLKIF_OP_READ] = "read", + [BLKIF_OP_WRITE] = "write", + [BLKIF_OP_WRITE_BARRIER] = "barrier", + [BLKIF_OP_FLUSH_DISKCACHE] = "flush", + [BLKIF_OP_DISCARD] = "discard" }; + + if (op < 0 || op >= ARRAY_SIZE(names)) + return "unknown"; + + if (!names[op]) + return "reserved"; + + return names[op]; +} static int xlbd_reserve_minors(unsigned int minor, unsigned int nr) { unsigned int end = minor + nr; @@ -746,20 +768,36 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id) bret = RING_GET_RESPONSE(&info->ring, i); id = bret->id; + /* + * The backend has messed up and given us an id that we would + * never have given to it (we stamp it up to BLK_RING_SIZE - + * look in get_id_from_freelist. + */ + if (id >= BLK_RING_SIZE) { + WARN(1, "%s: response to %s has incorrect id (%ld)\n", + info->gd->disk_name, op_name(bret->operation), id); + /* We can't safely get the 'struct request' as + * the id is busted. */ + continue; + } req = info->shadow[id].request; if (bret->operation != BLKIF_OP_DISCARD) blkif_completion(&info->shadow[id]); - add_id_to_freelist(info, id); + if (add_id_to_freelist(info, id)) { + WARN(1, "%s: response to %s (id %ld) couldn't be recycled!\n", + info->gd->disk_name, op_name(bret->operation), id); + continue; + } error = (bret->status == BLKIF_RSP_OKAY) ? 0 : -EIO; switch (bret->operation) { case BLKIF_OP_DISCARD: if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) { struct request_queue *rq = info->rq; - printk(KERN_WARNING "blkfront: %s: discard op failed\n", - info->gd->disk_name); + printk(KERN_WARNING "blkfront: %s: %s op failed\n", + info->gd->disk_name, op_name(bret->operation)); error = -EOPNOTSUPP; info->feature_discard = 0; info->feature_secdiscard = 0; @@ -771,18 +809,14 @@ static irqreturn_t blkif_interrupt(int irq, void *dev_id) case BLKIF_OP_FLUSH_DISKCACHE: case BLKIF_OP_WRITE_BARRIER: if (unlikely(bret->status == BLKIF_RSP_EOPNOTSUPP)) { - printk(KERN_WARNING "blkfront: %s: write %s op failed\n", - info->flush_op == BLKIF_OP_WRITE_BARRIER ? - "barrier" : "flush disk cache", - info->gd->disk_name); + printk(KERN_WARNING "blkfront: %s: %s op failed\n", + info->gd->disk_name, op_name(bret->operation)); error = -EOPNOTSUPP; } if (unlikely(bret->status == BLKIF_RSP_ERROR && info->shadow[id].req.u.rw.nr_segments == 0)) { - printk(KERN_WARNING "blkfront: %s: empty write %s op failed\n", - info->flush_op == BLKIF_OP_WRITE_BARRIER ? - "barrier" : "flush disk cache", - info->gd->disk_name); + printk(KERN_WARNING "blkfront: %s: empty %s op failed\n", + info->gd->disk_name, op_name(bret->operation)); error = -EOPNOTSUPP; } if (unlikely(error)) { -- cgit v1.2.3-59-g8ed1b From 4eccc579795290a58e2262fa4e9d083d7672e699 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg Date: Fri, 8 Jun 2012 13:18:51 +0200 Subject: drbd: fix access of unallocated pages and kernel panic BUG: unable to handle kernel NULL pointer dereference at (null) ... [] ? _drbd_bm_set_bits+0x151/0x240 [drbd] [] ? receive_bitmap+0x4f8/0xbc0 [drbd] This fixes an off-by-one error in the receive_bitmap() path, if run-length encoded bitmap transfer is enabled. If the bitmap is an exact multiple of PAGE_SIZE, which means the visible capacity of the drbd device is an exact multiple of 128 MiB (for 4k page size), and bitmap compression (use-rle) is enabled (which became default with 8.4), and the very last bit is dirty and reported in an rle comressed bitmap packet, we ended up trying to kmap_atomic a page pointer that does not exist (bitmap->bm_pages[last index + 1]). bug introduced by: Date: Fri Jul 24 15:33:24 2009 +0200 set bits: optimize for complete last word, fix off-by-one-word corner case made effective by: Date: Thu Dec 16 00:32:38 2010 +0100 drbd: get rid of unused debug code Long time ago, we had paranoia code in the bitmap that allocated one extra word, assigned a magic value, and checked on every occasion that the magic value was still unchanged. That debug code is unused, the extra long word complicates code a bit. Get rid of it. No-one triggered this bug in the last few years, because a large subset of our userbase is unaffected: * typically the last few blocks of a device are not modified frequently, and remain unset * use-rle was disabled by default in drbd < 8.4 * those with slightly "odd" device sizes, or * drbd internal meta data (which will skew the device size slightly, thus makes it harder to have a bug relevant device size) Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_bitmap.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/block/drbd/drbd_bitmap.c b/drivers/block/drbd/drbd_bitmap.c index b5c5ff53cb57..fcb956bb4b4c 100644 --- a/drivers/block/drbd/drbd_bitmap.c +++ b/drivers/block/drbd/drbd_bitmap.c @@ -1475,10 +1475,17 @@ void _drbd_bm_set_bits(struct drbd_conf *mdev, const unsigned long s, const unsi first_word = 0; spin_lock_irq(&b->bm_lock); } - /* last page (respectively only page, for first page == last page) */ last_word = MLPP(el >> LN2_BPL); - bm_set_full_words_within_one_page(mdev->bitmap, last_page, first_word, last_word); + + /* consider bitmap->bm_bits = 32768, bitmap->bm_number_of_pages = 1. (or multiples). + * ==> e = 32767, el = 32768, last_page = 2, + * and now last_word = 0. + * We do not want to touch last_page in this case, + * as we did not allocate it, it is not present in bitmap->bm_pages. + */ + if (last_word) + bm_set_full_words_within_one_page(mdev->bitmap, last_page, first_word, last_word); /* possibly trailing bits. * example: (e & 63) == 63, el will be e+1. -- cgit v1.2.3-59-g8ed1b From 1ed25b269e3dd5ecc64f17beef9ea21745c39ca6 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg Date: Fri, 8 Jun 2012 14:09:54 +0200 Subject: drbd: fix list corruption by failing but already aborted reads If a read is aborted due to force-detach of a supposedly unresponsive local backing device, and retried on the peer, it can happen that the local request later still completes (hopefully with an error). As it may already have been completed to upper layers meanwhile, it must not be retried again now. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_req.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 9c5c84946b05..773f4e2d3c1b 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -472,12 +472,17 @@ int __req_mod(struct drbd_request *req, enum drbd_req_event what, req->rq_state |= RQ_LOCAL_COMPLETED; req->rq_state &= ~RQ_LOCAL_PENDING; - D_ASSERT(!(req->rq_state & RQ_NET_MASK)); + if (req->rq_state & RQ_LOCAL_ABORTED) { + _req_may_be_done(req, m); + break; + } __drbd_chk_io_error(mdev, false); goto_queue_for_net_read: + D_ASSERT(!(req->rq_state & RQ_NET_MASK)); + /* no point in retrying if there is no good remote data, * or we have no connection. */ if (mdev->state.pdsk != D_UP_TO_DATE) { -- cgit v1.2.3-59-g8ed1b From 0d5934e3c258fc5decc4103600c597086fd95a52 Mon Sep 17 00:00:00 2001 From: Lars Ellenberg Date: Fri, 8 Jun 2012 14:17:36 +0200 Subject: drbd: fix null pointer dereference with on-congestion policy when diskless We must not look at mdev->actlog, unless we have a get_ldev() reference. It also does not make much sense to try to disconnect or pull-ahead of the peer, if we don't have good local data. Only even consider congestion policies, if our local disk is D_UP_TO_DATE. Signed-off-by: Philipp Reisner Signed-off-by: Lars Ellenberg --- drivers/block/drbd/drbd_req.c | 59 ++++++++++++++++++++++++++----------------- 1 file changed, 36 insertions(+), 23 deletions(-) diff --git a/drivers/block/drbd/drbd_req.c b/drivers/block/drbd/drbd_req.c index 773f4e2d3c1b..8e93a6ac9bb6 100644 --- a/drivers/block/drbd/drbd_req.c +++ b/drivers/block/drbd/drbd_req.c @@ -770,6 +770,40 @@ static int drbd_may_do_local_read(struct drbd_conf *mdev, sector_t sector, int s return 0 == drbd_bm_count_bits(mdev, sbnr, ebnr); } +static void maybe_pull_ahead(struct drbd_conf *mdev) +{ + int congested = 0; + + /* If I don't even have good local storage, we can not reasonably try + * to pull ahead of the peer. We also need the local reference to make + * sure mdev->act_log is there. + * Note: caller has to make sure that net_conf is there. + */ + if (!get_ldev_if_state(mdev, D_UP_TO_DATE)) + return; + + if (mdev->net_conf->cong_fill && + atomic_read(&mdev->ap_in_flight) >= mdev->net_conf->cong_fill) { + dev_info(DEV, "Congestion-fill threshold reached\n"); + congested = 1; + } + + if (mdev->act_log->used >= mdev->net_conf->cong_extents) { + dev_info(DEV, "Congestion-extents threshold reached\n"); + congested = 1; + } + + if (congested) { + queue_barrier(mdev); /* last barrier, after mirrored writes */ + + if (mdev->net_conf->on_congestion == OC_PULL_AHEAD) + _drbd_set_state(_NS(mdev, conn, C_AHEAD), 0, NULL); + else /*mdev->net_conf->on_congestion == OC_DISCONNECT */ + _drbd_set_state(_NS(mdev, conn, C_DISCONNECTING), 0, NULL); + } + put_ldev(mdev); +} + static int drbd_make_request_common(struct drbd_conf *mdev, struct bio *bio, unsigned long start_time) { const int rw = bio_rw(bio); @@ -977,29 +1011,8 @@ allocate_barrier: _req_mod(req, queue_for_send_oos); if (remote && - mdev->net_conf->on_congestion != OC_BLOCK && mdev->agreed_pro_version >= 96) { - int congested = 0; - - if (mdev->net_conf->cong_fill && - atomic_read(&mdev->ap_in_flight) >= mdev->net_conf->cong_fill) { - dev_info(DEV, "Congestion-fill threshold reached\n"); - congested = 1; - } - - if (mdev->act_log->used >= mdev->net_conf->cong_extents) { - dev_info(DEV, "Congestion-extents threshold reached\n"); - congested = 1; - } - - if (congested) { - queue_barrier(mdev); /* last barrier, after mirrored writes */ - - if (mdev->net_conf->on_congestion == OC_PULL_AHEAD) - _drbd_set_state(_NS(mdev, conn, C_AHEAD), 0, NULL); - else /*mdev->net_conf->on_congestion == OC_DISCONNECT */ - _drbd_set_state(_NS(mdev, conn, C_DISCONNECTING), 0, NULL); - } - } + mdev->net_conf->on_congestion != OC_BLOCK && mdev->agreed_pro_version >= 96) + maybe_pull_ahead(mdev); spin_unlock_irq(&mdev->req_lock); kfree(b); /* if someone else has beaten us to it... */ -- cgit v1.2.3-59-g8ed1b From cb9dd49e11f83d548c822d7022ac180b0518b25c Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Mon, 11 Jun 2012 19:03:32 -0300 Subject: perf tools: Fix synthesizing tracepoint names from the perf.data headers We need to use the per event info snapshoted at record time to synthesize the events name, so do it just after reading the perf.data headers, when we already processed the /sys events data, otherwise we'll end up using the local /sys that only by sheer luck will have the same tracepoint ID -> real event association. Example: # uname -a Linux felicio.ghostprotocols.net 3.4.0-rc5+ #1 SMP Sat May 19 15:27:11 BRT 2012 x86_64 x86_64 x86_64 GNU/Linux # perf record -e sched:sched_switch usleep 1 [ perf record: Woken up 1 times to write data ] [ perf record: Captured and wrote 0.015 MB perf.data (~648 samples) ] # cat /t/events/sched/sched_switch/id 279 # perf evlist -v sched:sched_switch: sample_freq=1, type: 2, config: 279, size: 80, sample_type: 1159, read_format: 7, disabled: 1, inherit: 1, mmap: 1, comm: 1, enable_on_exec: 1, sample_id_all: 1, exclude_guest: 1 # So on the above machine the sched:sched_switch has tracepoint id 279, but on the machine were we'll analyse it it has a different id: $ cat /t/events/sched/sched_switch/id 56 $ perf evlist -i /tmp/perf.data kmem:mm_balancedirty_writeout $ cat /t/events/kmem/mm_balancedirty_writeout/id 279 With this fix: $ perf evlist -i /tmp/perf.data sched:sched_switch Reported-by: Dmitry Antipov Cc: David Ahern Cc: Frederic Weisbecker Cc: Jiri Olsa Cc: Mike Galbraith Cc: Namhyung Kim Cc: Paul Mackerras Cc: Peter Zijlstra Cc: Stephane Eranian Link: http://lkml.kernel.org/n/tip-auwks8fpuhmrdpiefs55o5oz@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/header.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 4f9b247fb312..e909d43cf542 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -2093,6 +2093,35 @@ static int read_attr(int fd, struct perf_header *ph, return ret <= 0 ? -1 : 0; } +static int perf_evsel__set_tracepoint_name(struct perf_evsel *evsel) +{ + struct event_format *event = trace_find_event(evsel->attr.config); + char bf[128]; + + if (event == NULL) + return -1; + + snprintf(bf, sizeof(bf), "%s:%s", event->system, event->name); + evsel->name = strdup(bf); + if (event->name == NULL) + return -1; + + return 0; +} + +static int perf_evlist__set_tracepoint_names(struct perf_evlist *evlist) +{ + struct perf_evsel *pos; + + list_for_each_entry(pos, &evlist->entries, node) { + if (pos->attr.type == PERF_TYPE_TRACEPOINT && + perf_evsel__set_tracepoint_name(pos)) + return -1; + } + + return 0; +} + int perf_session__read_header(struct perf_session *session, int fd) { struct perf_header *header = &session->header; @@ -2174,6 +2203,9 @@ int perf_session__read_header(struct perf_session *session, int fd) lseek(fd, header->data_offset, SEEK_SET); + if (perf_evlist__set_tracepoint_names(session->evlist)) + goto out_delete_evlist; + header->frozen = 1; return 0; out_errno: -- cgit v1.2.3-59-g8ed1b From e73f843a3235a19de38359c91586e9eadef12238 Mon Sep 17 00:00:00 2001 From: Suresh Jayaraman Date: Tue, 12 Jun 2012 07:15:50 +0530 Subject: cifs: fix parsing of password mount option The double delimiter check that allows a comma in the password parsing code is unconditional. We set "tmp_end" to the end of the string and we continue to check for double delimiter. In the case where the password doesn't contain a comma we end up setting tmp_end to NULL and eventually setting "options" to "end". This results in the premature termination of the options string and hence the values of UNCip and UNC are being set to NULL. This results in mount failure with "Connecting to DFS root not implemented yet" error. This error is usually not noticable as we have password as the last option in the superblock mountdata. But when we call expand_dfs_referral() from cifs_mount() and try to compose mount options for the submount, the resulting mountdata will be of the form ",ver=1,user=foo,pass=bar,ip=x.x.x.x,unc=\\server\share" and hence results in the above error. This bug has been seen with older NAS servers running Samba 3.0.24. Fix this by moving the double delimiter check inside the conditional loop. Changes since -v1 - removed the wrong strlen() micro optimization. Signed-off-by: Suresh Jayaraman Acked-by: Sachin Prabhu Cc: stable@vger.kernel.org [3.1+] Signed-off-by: Steve French --- fs/cifs/connect.c | 32 +++++++++++++++++--------------- 1 file changed, 17 insertions(+), 15 deletions(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 78db68a5cf44..5b3840725d01 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -1653,24 +1653,26 @@ cifs_parse_mount_options(const char *mountdata, const char *devname, * If yes, we have encountered a double deliminator * reset the NULL character to the deliminator */ - if (tmp_end < end && tmp_end[1] == delim) + if (tmp_end < end && tmp_end[1] == delim) { tmp_end[0] = delim; - /* Keep iterating until we get to a single deliminator - * OR the end - */ - while ((tmp_end = strchr(tmp_end, delim)) != NULL && - (tmp_end[1] == delim)) { - tmp_end = (char *) &tmp_end[2]; - } + /* Keep iterating until we get to a single + * deliminator OR the end + */ + while ((tmp_end = strchr(tmp_end, delim)) + != NULL && (tmp_end[1] == delim)) { + tmp_end = (char *) &tmp_end[2]; + } - /* Reset var options to point to next element */ - if (tmp_end) { - tmp_end[0] = '\0'; - options = (char *) &tmp_end[1]; - } else - /* Reached the end of the mount option string */ - options = end; + /* Reset var options to point to next element */ + if (tmp_end) { + tmp_end[0] = '\0'; + options = (char *) &tmp_end[1]; + } else + /* Reached the end of the mount option + * string */ + options = end; + } /* Now build new password string */ temp_len = strlen(value); -- cgit v1.2.3-59-g8ed1b From 1b8487368bb0acedf23e226974b63aaaf2bfddbd Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 12 Jun 2012 11:10:50 -0700 Subject: Revert "staging: usbip: bugfix for stack corruption on 64-bit architectures" This reverts commit 08224262adefb5e6460888b2490a96e1bc28aef5 as it's just not right. Reported-by: Ben Hutchings Cc: stable Cc: Bart Westgeest Signed-off-by: Greg Kroah-Hartman --- drivers/staging/usbip/vhci_hcd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/usbip/vhci_hcd.c b/drivers/staging/usbip/vhci_hcd.c index 117a7ad9fdb1..f708cbaee16b 100644 --- a/drivers/staging/usbip/vhci_hcd.c +++ b/drivers/staging/usbip/vhci_hcd.c @@ -205,7 +205,7 @@ static int vhci_hub_status(struct usb_hcd *hcd, char *buf) int retval = 0; /* the enough buffer is allocated according to USB_MAXCHILDREN */ - u32 *event_bits = (unsigned long *) buf; + unsigned long *event_bits = (unsigned long *) buf; int rhport; int changed = 0; -- cgit v1.2.3-59-g8ed1b From 33735a94afdfb39c550b952a40f77c60afdddfa5 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 11 Jun 2012 15:09:21 +0200 Subject: staging:iio:ad7298: Fix linker error due to missing IIO kfifo buffer The ad7298 drivers buffer implementation uses the IIO kfifo buffer, so it needs to select IIO_KFIFO_BUF. Otherwise (if no other driver selects the symbol) the following linker error will occur: drivers/built-in.o: In function `ad7298_register_ring_funcs_and_init': (.text+0x245cf2): undefined reference to `iio_kfifo_allocate' drivers/built-in.o: In function `ad7298_register_ring_funcs_and_init': (.text+0x245d7d): undefined reference to `iio_kfifo_free' drivers/built-in.o: In function `ad7298_ring_cleanup': (.text+0x245dcd): undefined reference to `iio_kfifo_free' Signed-off-by: Lars-Peter Clausen Reported-by: Randy Dunlap Signed-off-by: Greg Kroah-Hartman --- drivers/staging/iio/adc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/staging/iio/adc/Kconfig b/drivers/staging/iio/adc/Kconfig index 2490dd25093b..8f1b3af02f29 100644 --- a/drivers/staging/iio/adc/Kconfig +++ b/drivers/staging/iio/adc/Kconfig @@ -13,6 +13,7 @@ config AD7291 config AD7298 tristate "Analog Devices AD7298 ADC driver" depends on SPI + select IIO_KFIFO_BUF if IIO_BUFFER help Say yes here to build support for Analog Devices AD7298 8 Channel ADC with temperature sensor. -- cgit v1.2.3-59-g8ed1b From 6ddcd46463aa66855f1f8e74de454740a5f4aef4 Mon Sep 17 00:00:00 2001 From: Avinash Patil Date: Mon, 11 Jun 2012 18:13:57 -0700 Subject: mwifiex: fix incorrect privacy setting in beacon and probe response Test procedure: 1. Start AP with security setting (e.g. WPA2) 2. Stop AP 3. Start AP with open security Here it's observed that privacy is enabled in beacons and probe responses. This patch fixes it by checking the privacy parameter from cfg80211_ap_settings. If privacy is not set in cfg80211_ap_settings, set open authentication and no encryption in FW. Signed-off-by: Avinash Patil Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/uap_cmd.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/net/wireless/mwifiex/uap_cmd.c b/drivers/net/wireless/mwifiex/uap_cmd.c index 8173ab66066d..89f9a2a45de3 100644 --- a/drivers/net/wireless/mwifiex/uap_cmd.c +++ b/drivers/net/wireless/mwifiex/uap_cmd.c @@ -27,6 +27,17 @@ int mwifiex_set_secure_params(struct mwifiex_private *priv, struct cfg80211_ap_settings *params) { int i; + if (!params->privacy) { + bss_config->protocol = PROTOCOL_NO_SECURITY; + bss_config->key_mgmt = KEY_MGMT_NONE; + bss_config->wpa_cfg.length = 0; + priv->sec_info.wep_enabled = 0; + priv->sec_info.wpa_enabled = 0; + priv->sec_info.wpa2_enabled = 0; + + return 0; + } + switch (params->auth_type) { case NL80211_AUTHTYPE_OPEN_SYSTEM: bss_config->auth_mode = WLAN_AUTH_OPEN; -- cgit v1.2.3-59-g8ed1b From 58bcd3322944f31c9a8b02694e221c645cf4ffd9 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 8 Jun 2012 18:51:23 -0700 Subject: serial: fix kernel-doc warnings in 8250.c Fix kernel-doc warnings in drivers/tty/serial/8250/8250.c: Warning(drivers/tty/serial/8250/8250.c:3128): No description found for parameter 'up' Warning(drivers/tty/serial/8250/8250.c:3128): Excess function parameter 'port' description in 'serial8250_register_8250_port' Signed-off-by: Randy Dunlap Acked-by: Alan Cox Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/8250/8250.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/8250/8250.c b/drivers/tty/serial/8250/8250.c index 47d061b9ad4d..6e1958a325bd 100644 --- a/drivers/tty/serial/8250/8250.c +++ b/drivers/tty/serial/8250/8250.c @@ -3113,7 +3113,7 @@ static struct uart_8250_port *serial8250_find_match_or_unused(struct uart_port * /** * serial8250_register_8250_port - register a serial port - * @port: serial port template + * @up: serial port template * * Configure the serial port specified by the request. If the * port exists and is in use, it is hung up and unregistered -- cgit v1.2.3-59-g8ed1b From f109293f5889dd30477564a3ce2c901f4024a53e Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Tue, 5 Jun 2012 09:46:07 -0700 Subject: serial: fix serial_txx9.c build warning/typo Fix kconfig symbol test to use "defined": drivers/tty/serial/serial_txx9.c: warning: "CONFIG_CONSOLE_POLL" is not defined [-Wundef] Reported-by: Geert Uytterhoeven Signed-off-by: Randy Dunlap Signed-off-by: Greg Kroah-Hartman --- drivers/tty/serial/serial_txx9.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/serial_txx9.c b/drivers/tty/serial/serial_txx9.c index 34bd345da775..6ae2a58d62f2 100644 --- a/drivers/tty/serial/serial_txx9.c +++ b/drivers/tty/serial/serial_txx9.c @@ -466,7 +466,7 @@ static void serial_txx9_break_ctl(struct uart_port *port, int break_state) spin_unlock_irqrestore(&up->port.lock, flags); } -#if defined(CONFIG_SERIAL_TXX9_CONSOLE) || (CONFIG_CONSOLE_POLL) +#if defined(CONFIG_SERIAL_TXX9_CONSOLE) || defined(CONFIG_CONSOLE_POLL) /* * Wait for transmitter & holding register to empty */ -- cgit v1.2.3-59-g8ed1b From 78d80c5a720ea370defa3e3124c0f7f7179bdfe5 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Wed, 23 May 2012 21:18:46 +0200 Subject: serial/amba-pl011: move custom pin control to driver We had a boot regression in Ux500 in the merge window because two orthogonal pin control schemes for the PL011 were merged at the same time: - One using the .init() and .exit() hooks into the platform for Ux500 putting the pins into default vs sleep state respectively as the port was started/stopped. commit a09806607fd20bed2f8c41fe22793386790a14aa "ARM: ux500: switch to using pinctrl for uart0" - One hogging the default setting at PL011 probe() commit 258e055111d3cde2607e0d04eb91da2f7a59b591 "serial: amba-pl011: adopt pinctrl support" To get a solution that works for both let's scrap the stuff in the platform callbacks, instead have the driver itself select default and sleep states when the port is started/stopped. Hopefully this works for all clients. Platform callbacks are bad for device tree migration anyway, so this rids us of another problem in Ux500. Cc: Shawn Guo Cc: Russell King Reported-by: Lee Jones Signed-off-by: Linus Walleij Tested-by: Shawn Guo Signed-off-by: Greg Kroah-Hartman --- arch/arm/mach-ux500/board-mop500.c | 54 +------------------------------------- drivers/tty/serial/amba-pl011.c | 45 ++++++++++++++++++++++++++++--- 2 files changed, 42 insertions(+), 57 deletions(-) diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c index 9c74ac545849..1509a3cb5833 100644 --- a/arch/arm/mach-ux500/board-mop500.c +++ b/arch/arm/mach-ux500/board-mop500.c @@ -580,43 +580,12 @@ static void ux500_uart0_reset(void) udelay(1); } -/* This needs to be referenced by callbacks */ -struct pinctrl *u0_p; -struct pinctrl_state *u0_def; -struct pinctrl_state *u0_sleep; - -static void ux500_uart0_init(void) -{ - int ret; - - if (IS_ERR(u0_p) || IS_ERR(u0_def)) - return; - - ret = pinctrl_select_state(u0_p, u0_def); - if (ret) - pr_err("could not set UART0 defstate\n"); -} - -static void ux500_uart0_exit(void) -{ - int ret; - - if (IS_ERR(u0_p) || IS_ERR(u0_sleep)) - return; - - ret = pinctrl_select_state(u0_p, u0_sleep); - if (ret) - pr_err("could not set UART0 idlestate\n"); -} - static struct amba_pl011_data uart0_plat = { #ifdef CONFIG_STE_DMA40 .dma_filter = stedma40_filter, .dma_rx_param = &uart0_dma_cfg_rx, .dma_tx_param = &uart0_dma_cfg_tx, #endif - .init = ux500_uart0_init, - .exit = ux500_uart0_exit, .reset = ux500_uart0_reset, }; @@ -638,28 +607,7 @@ static struct amba_pl011_data uart2_plat = { static void __init mop500_uart_init(struct device *parent) { - struct amba_device *uart0_device; - - uart0_device = db8500_add_uart0(parent, &uart0_plat); - if (uart0_device) { - u0_p = pinctrl_get(&uart0_device->dev); - if (IS_ERR(u0_p)) - dev_err(&uart0_device->dev, - "could not get UART0 pinctrl\n"); - else { - u0_def = pinctrl_lookup_state(u0_p, - PINCTRL_STATE_DEFAULT); - if (IS_ERR(u0_def)) { - dev_err(&uart0_device->dev, - "could not get UART0 defstate\n"); - } - u0_sleep = pinctrl_lookup_state(u0_p, - PINCTRL_STATE_SLEEP); - if (IS_ERR(u0_sleep)) - dev_err(&uart0_device->dev, - "could not get UART0 idlestate\n"); - } - } + db8500_add_uart0(parent, &uart0_plat); db8500_add_uart1(parent, &uart1_plat); db8500_add_uart2(parent, &uart2_plat); } diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 4ad721fb8405..c17923ec6e95 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -133,6 +133,10 @@ struct pl011_dmatx_data { struct uart_amba_port { struct uart_port port; struct clk *clk; + /* Two optional pin states - default & sleep */ + struct pinctrl *pinctrl; + struct pinctrl_state *pins_default; + struct pinctrl_state *pins_sleep; const struct vendor_data *vendor; unsigned int dmacr; /* dma control reg */ unsigned int im; /* interrupt mask */ @@ -1312,6 +1316,14 @@ static int pl011_startup(struct uart_port *port) unsigned int cr; int retval; + /* Optionaly enable pins to be muxed in and configured */ + if (!IS_ERR(uap->pins_default)) { + retval = pinctrl_select_state(uap->pinctrl, uap->pins_default); + if (retval) + dev_err(port->dev, + "could not set default pins\n"); + } + retval = clk_prepare(uap->clk); if (retval) goto out; @@ -1420,6 +1432,7 @@ static void pl011_shutdown(struct uart_port *port) { struct uart_amba_port *uap = (struct uart_amba_port *)port; unsigned int cr; + int retval; /* * disable all interrupts @@ -1462,6 +1475,14 @@ static void pl011_shutdown(struct uart_port *port) */ clk_disable(uap->clk); clk_unprepare(uap->clk); + /* Optionally let pins go into sleep states */ + if (!IS_ERR(uap->pins_sleep)) { + retval = pinctrl_select_state(uap->pinctrl, uap->pins_sleep); + if (retval) + dev_err(port->dev, + "could not set pins to sleep state\n"); + } + if (uap->port.dev->platform_data) { struct amba_pl011_data *plat; @@ -1792,6 +1813,14 @@ static int __init pl011_console_setup(struct console *co, char *options) if (!uap) return -ENODEV; + /* Allow pins to be muxed in and configured */ + if (!IS_ERR(uap->pins_default)) { + ret = pinctrl_select_state(uap->pinctrl, uap->pins_default); + if (ret) + dev_err(uap->port.dev, + "could not set default pins\n"); + } + ret = clk_prepare(uap->clk); if (ret) return ret; @@ -1844,7 +1873,6 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id) { struct uart_amba_port *uap; struct vendor_data *vendor = id->data; - struct pinctrl *pinctrl; void __iomem *base; int i, ret; @@ -1869,11 +1897,20 @@ static int pl011_probe(struct amba_device *dev, const struct amba_id *id) goto free; } - pinctrl = devm_pinctrl_get_select_default(&dev->dev); - if (IS_ERR(pinctrl)) { - ret = PTR_ERR(pinctrl); + uap->pinctrl = devm_pinctrl_get(&dev->dev); + if (IS_ERR(uap->pinctrl)) { + ret = PTR_ERR(uap->pinctrl); goto unmap; } + uap->pins_default = pinctrl_lookup_state(uap->pinctrl, + PINCTRL_STATE_DEFAULT); + if (IS_ERR(uap->pins_default)) + dev_err(&dev->dev, "could not get default pinstate\n"); + + uap->pins_sleep = pinctrl_lookup_state(uap->pinctrl, + PINCTRL_STATE_SLEEP); + if (IS_ERR(uap->pins_sleep)) + dev_dbg(&dev->dev, "could not get sleep pinstate\n"); uap->clk = clk_get(&dev->dev, NULL); if (IS_ERR(uap->clk)) { -- cgit v1.2.3-59-g8ed1b From 6ebb017de9d59a18c3ff9648270e8f6abaa93438 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Tue, 5 Jun 2012 08:52:34 +0200 Subject: printk: Fix alignment of buf causing crash on ARM EABI Commit 7ff9554bb578ba02166071d2d487b7fc7d860d62, printk: convert byte-buffer to variable-length record buffer, causes systems using EABI to crash very early in the boot cycle. The first entry in struct log is a u64, which for EABI must be 8 byte aligned. Make use of __alignof__() so the compiler to decide the alignment, but allow it to be overridden using CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS, for systems which can perform unaligned access and want to save a few bytes of space. Tested on Orion5x and Kirkwood. Signed-off-by: Andrew Lunn Tested-by: Stephen Warren Acked-by: Stephen Warren Acked-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- kernel/printk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/printk.c b/kernel/printk.c index 32462d2b364a..f205c25c37e2 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -227,10 +227,10 @@ static u32 clear_idx; #define LOG_LINE_MAX 1024 /* record buffer */ -#if !defined(CONFIG_64BIT) || defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) +#if defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) #define LOG_ALIGN 4 #else -#define LOG_ALIGN 8 +#define LOG_ALIGN __alignof__(struct log) #endif #define __LOG_BUF_LEN (1 << CONFIG_LOG_BUF_SHIFT) static char __log_buf[__LOG_BUF_LEN] __aligned(LOG_ALIGN); -- cgit v1.2.3-59-g8ed1b From fe20b39ec32e975f1054c0b7866c873a954adf05 Mon Sep 17 00:00:00 2001 From: Eliad Peller Date: Tue, 12 Jun 2012 12:53:13 +0300 Subject: cfg80211: fix potential deadlock in regulatory reg_timeout_work() calls restore_regulatory_settings() which takes cfg80211_mutex. reg_set_request_processed() already holds cfg80211_mutex before calling cancel_delayed_work_sync(reg_timeout), so it might deadlock. Call the async cancel_delayed_work instead, in order to avoid the potential deadlock. This is the relevant lockdep warning: cfg80211: Calling CRDA for country: XX ====================================================== [ INFO: possible circular locking dependency detected ] 3.4.0-rc5-wl+ #26 Not tainted ------------------------------------------------------- kworker/0:2/1391 is trying to acquire lock: (cfg80211_mutex){+.+.+.}, at: [] restore_regulatory_settings+0x34/0x418 [cfg80211] but task is already holding lock: ((reg_timeout).work){+.+...}, at: [] process_one_work+0x1f0/0x480 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #2 ((reg_timeout).work){+.+...}: [] validate_chain+0xb94/0x10f0 [] __lock_acquire+0x8c8/0x9b0 [] lock_acquire+0xf0/0x114 [] wait_on_work+0x4c/0x154 [] __cancel_work_timer+0xd4/0x11c [] cancel_delayed_work_sync+0x1c/0x20 [] reg_set_request_processed+0x50/0x78 [cfg80211] [] set_regdom+0x550/0x600 [cfg80211] [] nl80211_set_reg+0x218/0x258 [cfg80211] [] genl_rcv_msg+0x1a8/0x1e8 [] netlink_rcv_skb+0x5c/0xc0 [] genl_rcv+0x28/0x34 [] netlink_unicast+0x15c/0x228 [] netlink_sendmsg+0x218/0x298 [] sock_sendmsg+0xa4/0xc0 [] __sys_sendmsg+0x1e4/0x268 [] sys_sendmsg+0x4c/0x70 [] ret_fast_syscall+0x0/0x3c -> #1 (reg_mutex){+.+.+.}: [] validate_chain+0xb94/0x10f0 [] __lock_acquire+0x8c8/0x9b0 [] lock_acquire+0xf0/0x114 [] mutex_lock_nested+0x48/0x320 [] reg_todo+0x30/0x538 [cfg80211] [] process_one_work+0x2a0/0x480 [] worker_thread+0x1bc/0x2bc [] kthread+0x98/0xa4 [] kernel_thread_exit+0x0/0x8 -> #0 (cfg80211_mutex){+.+.+.}: [] print_circular_bug+0x68/0x2cc [] validate_chain+0x978/0x10f0 [] __lock_acquire+0x8c8/0x9b0 [] lock_acquire+0xf0/0x114 [] mutex_lock_nested+0x48/0x320 [] restore_regulatory_settings+0x34/0x418 [cfg80211] [] reg_timeout_work+0x1c/0x20 [cfg80211] [] process_one_work+0x2a0/0x480 [] worker_thread+0x1bc/0x2bc [] kthread+0x98/0xa4 [] kernel_thread_exit+0x0/0x8 other info that might help us debug this: Chain exists of: cfg80211_mutex --> reg_mutex --> (reg_timeout).work Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock((reg_timeout).work); lock(reg_mutex); lock((reg_timeout).work); lock(cfg80211_mutex); *** DEADLOCK *** 2 locks held by kworker/0:2/1391: #0: (events){.+.+.+}, at: [] process_one_work+0x1f0/0x480 #1: ((reg_timeout).work){+.+...}, at: [] process_one_work+0x1f0/0x480 stack backtrace: [] (unwind_backtrace+0x0/0x12c) from [] (dump_stack+0x20/0x24) [] (dump_stack+0x20/0x24) from [] (print_circular_bug+0x280/0x2cc) [] (print_circular_bug+0x280/0x2cc) from [] (validate_chain+0x978/0x10f0) [] (validate_chain+0x978/0x10f0) from [] (__lock_acquire+0x8c8/0x9b0) [] (__lock_acquire+0x8c8/0x9b0) from [] (lock_acquire+0xf0/0x114) [] (lock_acquire+0xf0/0x114) from [] (mutex_lock_nested+0x48/0x320) [] (mutex_lock_nested+0x48/0x320) from [] (restore_regulatory_settings+0x34/0x418 [cfg80211]) [] (restore_regulatory_settings+0x34/0x418 [cfg80211]) from [] (reg_timeout_work+0x1c/0x20 [cfg80211]) [] (reg_timeout_work+0x1c/0x20 [cfg80211]) from [] (process_one_work+0x2a0/0x480) [] (process_one_work+0x2a0/0x480) from [] (worker_thread+0x1bc/0x2bc) [] (worker_thread+0x1bc/0x2bc) from [] (kthread+0x98/0xa4) [] (kthread+0x98/0xa4) from [] (kernel_thread_exit+0x0/0x8) cfg80211: Calling CRDA to update world regulatory domain cfg80211: World regulatory domain updated: cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp) cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) cfg80211: (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm) cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm) Cc: stable@kernel.org Signed-off-by: Eliad Peller Signed-off-by: Johannes Berg --- net/wireless/reg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/wireless/reg.c b/net/wireless/reg.c index 15f347477a99..baf5704740ee 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -1389,7 +1389,7 @@ static void reg_set_request_processed(void) spin_unlock(®_requests_lock); if (last_request->initiator == NL80211_REGDOM_SET_BY_USER) - cancel_delayed_work_sync(®_timeout); + cancel_delayed_work(®_timeout); if (need_more_processing) schedule_work(®_work); -- cgit v1.2.3-59-g8ed1b From 554a43d5e77e8256aa9685ffd19ad555e6f77979 Mon Sep 17 00:00:00 2001 From: Eliad Peller Date: Tue, 12 Jun 2012 12:41:15 +0300 Subject: mac80211: check sdata_running on ieee80211_set_bitrate_mask Otherwise, we might call the driver callback before the interface was uploaded. Solves the following warning: WARNING: at net/mac80211/driver-ops.h:12 ieee80211_set_bitrate_mask+0xbc/0x18c [mac80211]() wlan0: Failed check-sdata-in-driver check, flags: 0x0 Modules linked in: wlcore_sdio wl12xx wl18xx wlcore mac80211 cfg80211 [last unloaded: cfg80211] [] (unwind_backtrace+0x0/0x12c) from [] (dump_stack+0x20/0x24) [] (dump_stack+0x20/0x24) from [] (warn_slowpath_common+0x5c/0x74) [] (warn_slowpath_common+0x5c/0x74) from [] (warn_slowpath_fmt+0x40/0x48) [] (warn_slowpath_fmt+0x40/0x48) from [] (ieee80211_set_bitrate_mask+0xbc/0x18c [mac80211]) [] (ieee80211_set_bitrate_mask+0xbc/0x18c [mac80211]) from [] (nl80211_set_tx_bitrate_mask+0x350/0x358 [cfg80211]) [] (nl80211_set_tx_bitrate_mask+0x350/0x358 [cfg80211]) from [] (genl_rcv_msg+0x1a8/0x1e8) [] (genl_rcv_msg+0x1a8/0x1e8) from [] (netlink_rcv_skb+0x5c/0xc0) [] (netlink_rcv_skb+0x5c/0xc0) from [] (genl_rcv+0x28/0x34) [] (genl_rcv+0x28/0x34) from [] (netlink_unicast+0x158/0x234) [] (netlink_unicast+0x158/0x234) from [] (netlink_sendmsg+0x218/0x298) [] (netlink_sendmsg+0x218/0x298) from [] (sock_sendmsg+0xa4/0xc0) [] (sock_sendmsg+0xa4/0xc0) from [] (__sys_sendmsg+0x1d8/0x254) [] (__sys_sendmsg+0x1d8/0x254) from [] (sys_sendmsg+0x4c/0x70) [] (sys_sendmsg+0x4c/0x70) from [] (ret_fast_syscall+0x0/0x3c) Note that calling the driver can also result in undefined behaviour since it doesn't have to deal with calls while down. Signed-off-by: Eliad Peller [removed timestamps, added note - Johannes] Signed-off-by: Johannes Berg --- net/mac80211/cfg.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index e9cecca5c44d..7d5108a867ad 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -2093,6 +2093,9 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); int i, ret; + if (!ieee80211_sdata_running(sdata)) + return -ENETDOWN; + if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { ret = drv_set_bitrate_mask(local, sdata, mask); if (ret) -- cgit v1.2.3-59-g8ed1b From 79543d8eecc0957ac6fe3ec1e2486ad31d4b67a3 Mon Sep 17 00:00:00 2001 From: David Spinadel Date: Tue, 12 Jun 2012 09:59:45 +0300 Subject: mac80211: stop polling in disassociation Stop connection monitor poll during disassociation. This clears the polling flags and if a scan was deferred it will be run. Without this fix, if a scan was deferred due to connection monitoring while disassociation happens, this scan blocks further scan requests until interface down/up which causes problems connecting to another AP. Signed-off-by: David Spinadel Signed-off-by: Johannes Berg --- net/mac80211/mlme.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 91d84cc77bbf..66e4fcdd1c6b 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1352,6 +1352,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, if (WARN_ON(!ifmgd->associated)) return; + ieee80211_stop_poll(sdata); + memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN); ifmgd->associated = NULL; @@ -2612,8 +2614,6 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata, struct ieee80211_if_managed *ifmgd = &sdata->u.mgd; u8 frame_buf[DEAUTH_DISASSOC_LEN]; - ieee80211_stop_poll(sdata); - ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, reason, false, frame_buf); mutex_unlock(&ifmgd->mtx); -- cgit v1.2.3-59-g8ed1b From bcb7ad7bcbef030e6ba71ede1f9866368aca7c99 Mon Sep 17 00:00:00 2001 From: Mohammed Shafi Shajakhan Date: Wed, 13 Jun 2012 21:28:09 +0530 Subject: ath9k: Fix softlockup in AR9485 steps to recreate: load latest ath9k driver with AR9485 stop the network-manager and wpa_supplicant bring the interface up Call Trace: [] ? ath_hw_check+0xe0/0xe0 [ath9k] [] __const_udelay+0x28/0x30 [] ar9003_get_pll_sqsum_dvc+0x4a/0x80 [ath9k_hw] [] ath_hw_pll_work+0x5b/0xe0 [ath9k] [] process_one_work+0x11e/0x470 [] worker_thread+0x15f/0x360 [] ? manage_workers+0x230/0x230 [] kthread+0x93/0xa0 [] kernel_thread_helper+0x4/0x10 [] ? kthread_freezable_should_stop+0x70/0x70 [] ? gs_change+0x13/0x13 ensure that the PLL-WAR for AR9485/AR9340 is executed only if the STA is associated (or) IBSS/AP mode had started beaconing. Ideally this WAR is needed to recover from some rare beacon stuck during stress testing. Before the STA is associated/IBSS had started beaconing, PLL4(0x1618c) always seem to have zero even though we had configured PLL3(0x16188) to query about PLL's locking status. When we keep on polling infinitely PLL4's 8th bit(ie check for PLL locking measurements is done), machine hangs due to softlockup. fixes https://bugzilla.redhat.com/show_bug.cgi?id=811142 Reported-by: Rolf Offermanns Cc: stable@vger.kernel.org [3.0+] Tested-by: Mohammed Shafi Shajakhan Signed-off-by: Mohammed Shafi Shajakhan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/main.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index ac41f1e3ab9f..dac1a2709e3c 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -971,6 +971,15 @@ void ath_hw_pll_work(struct work_struct *work) hw_pll_work.work); u32 pll_sqsum; + /* + * ensure that the PLL WAR is executed only + * after the STA is associated (or) if the + * beaconing had started in interfaces that + * uses beacons. + */ + if (!(sc->sc_flags & SC_OP_BEACONS)) + return; + if (AR_SREV_9485(sc->sc_ah)) { ath9k_ps_wakeup(sc); -- cgit v1.2.3-59-g8ed1b From e001f1c8e9c1d3b2f0c638bc712bcac10294aae3 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Thu, 7 Jun 2012 17:57:36 -0600 Subject: of: export of_platform_populate() Without this, modules can't use this API, leading to build failures. Signed-off-by: Stephen Warren Signed-off-by: Rob Herring --- drivers/of/platform.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 343ad29e211c..3132ea068d95 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -462,4 +462,5 @@ int of_platform_populate(struct device_node *root, of_node_put(root); return rc; } +EXPORT_SYMBOL_GPL(of_platform_populate); #endif /* CONFIG_OF_ADDRESS */ -- cgit v1.2.3-59-g8ed1b From ae2a7d20087f2780df7ddc829a74f4a387f26b4d Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Thu, 12 Apr 2012 13:24:17 +0200 Subject: of: Add Avionic Design vendor prefix This commit adds a device tree vendor prefix for Avionic Design GmbH. Cc: Grant Likely Cc: Rob Herring Cc: devicetree-discuss@lists.ozlabs.org Cc: Linus Walleij Signed-off-by: Thierry Reding Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/vendor-prefixes.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 6eab91747a86..db4d3af3643c 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -3,6 +3,7 @@ Device tree binding vendor prefix registry. Keep list in alphabetical order. This isn't an exhaustive list, but you should add new prefixes to it before using them to avoid name-space collisions. +ad Avionic Design GmbH adi Analog Devices, Inc. amcc Applied Micro Circuits Corporation (APM, formally AMCC) apm Applied Micro Circuits Corporation (APM) -- cgit v1.2.3-59-g8ed1b From 37797d5f2ee47a06cc1c43b7b5f4832822436e3b Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sat, 21 Apr 2012 14:21:13 -0300 Subject: dt: fsl-imx-cspi.txt: Fix comment about GPIOs used for chip selects The gpio numbers does not match the comment. Fix the comments for GPIOs used for chip selects. Signed-off-by: Fabio Estevam Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt index 9841057d112b..4256a6df9b79 100644 --- a/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt +++ b/Documentation/devicetree/bindings/spi/fsl-imx-cspi.txt @@ -17,6 +17,6 @@ ecspi@70010000 { reg = <0x70010000 0x4000>; interrupts = <36>; fsl,spi-num-chipselects = <2>; - cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */ - <&gpio3 25 0>; /* GPIO4_25 */ + cs-gpios = <&gpio3 24 0>, /* GPIO3_24 */ + <&gpio3 25 0>; /* GPIO3_25 */ }; -- cgit v1.2.3-59-g8ed1b From 06693fcd57739d2c6cb22c0f2bb494e7e65ccedd Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sun, 10 Jun 2012 14:24:07 -0300 Subject: dt: fsl-imx-esdhc.txt: Fix gpio number assignment Fix gpio number assignment, so that it can match the number stated in the comment. Cc: Signed-off-by: Fabio Estevam Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt index c7e404b3ef05..fea541ee8b34 100644 --- a/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt +++ b/Documentation/devicetree/bindings/mmc/fsl-imx-esdhc.txt @@ -29,6 +29,6 @@ esdhc@70008000 { compatible = "fsl,imx51-esdhc"; reg = <0x70008000 0x4000>; interrupts = <2>; - cd-gpios = <&gpio0 6 0>; /* GPIO1_6 */ - wp-gpios = <&gpio0 5 0>; /* GPIO1_5 */ + cd-gpios = <&gpio1 6 0>; /* GPIO1_6 */ + wp-gpios = <&gpio1 5 0>; /* GPIO1_5 */ }; -- cgit v1.2.3-59-g8ed1b From d7858de94584a2edb842fa5bea1c5c7aa08608c4 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sun, 10 Jun 2012 14:24:08 -0300 Subject: dt: fsl-mma8450.txt: Add missing 'reg' description Add missing 'reg' description. Signed-off-by: Fabio Estevam ---- .../devicetree/bindings/input/fsl-mma8450.txt | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/input/fsl-mma8450.txt | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/input/fsl-mma8450.txt b/Documentation/devicetree/bindings/input/fsl-mma8450.txt index a00c94ccbdee..0b96e5737d3a 100644 --- a/Documentation/devicetree/bindings/input/fsl-mma8450.txt +++ b/Documentation/devicetree/bindings/input/fsl-mma8450.txt @@ -2,6 +2,7 @@ Required properties: - compatible : "fsl,mma8450". +- reg: the I2C address of MMA8450 Example: -- cgit v1.2.3-59-g8ed1b From af634df194955109197f0fe098d09eab741c0ce8 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sun, 10 Jun 2012 14:24:09 -0300 Subject: dt: fsl-fec.txt: Fix gpio number assignment Fix gpio number assignment, so that it can match the number stated in the comment. Signed-off-by: Fabio Estevam Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/net/fsl-fec.txt | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/net/fsl-fec.txt b/Documentation/devicetree/bindings/net/fsl-fec.txt index 7ab9e1a2d8be..4616fc28ee86 100644 --- a/Documentation/devicetree/bindings/net/fsl-fec.txt +++ b/Documentation/devicetree/bindings/net/fsl-fec.txt @@ -19,6 +19,6 @@ ethernet@83fec000 { reg = <0x83fec000 0x4000>; interrupts = <87>; phy-mode = "mii"; - phy-reset-gpios = <&gpio1 14 0>; /* GPIO2_14 */ + phy-reset-gpios = <&gpio2 14 0>; /* GPIO2_14 */ local-mac-address = [00 04 9F 01 1B B9]; }; -- cgit v1.2.3-59-g8ed1b From d44115f28edba06d0844ab4b79682f48500020f6 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Sun, 10 Jun 2012 14:24:10 -0300 Subject: dt: mc13xxx.txt: Fix gpio number assignment Fix gpio number assignment, so that it can match the number stated in the comment. Signed-off-by: Fabio Estevam Signed-off-by: Rob Herring --- Documentation/devicetree/bindings/mfd/mc13xxx.txt | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Documentation/devicetree/bindings/mfd/mc13xxx.txt b/Documentation/devicetree/bindings/mfd/mc13xxx.txt index 19f6af47a792..baf07987ae68 100644 --- a/Documentation/devicetree/bindings/mfd/mc13xxx.txt +++ b/Documentation/devicetree/bindings/mfd/mc13xxx.txt @@ -46,8 +46,8 @@ Examples: ecspi@70010000 { /* ECSPI1 */ fsl,spi-num-chipselects = <2>; - cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */ - <&gpio3 25 0>; /* GPIO4_25 */ + cs-gpios = <&gpio4 24 0>, /* GPIO4_24 */ + <&gpio4 25 0>; /* GPIO4_25 */ status = "okay"; pmic: mc13892@0 { -- cgit v1.2.3-59-g8ed1b From 047fe3605235888f3ebcda0c728cb31937eadfe6 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 12 Jun 2012 15:24:40 +0200 Subject: splice: fix racy pipe->buffers uses Dave Jones reported a kernel BUG at mm/slub.c:3474! triggered by splice_shrink_spd() called from vmsplice_to_pipe() commit 35f3d14dbbc5 (pipe: add support for shrinking and growing pipes) added capability to adjust pipe->buffers. Problem is some paths don't hold pipe mutex and assume pipe->buffers doesn't change for their duration. Fix this by adding nr_pages_max field in struct splice_pipe_desc, and use it in place of pipe->buffers where appropriate. splice_shrink_spd() loses its struct pipe_inode_info argument. Reported-by: Dave Jones Signed-off-by: Eric Dumazet Cc: Jens Axboe Cc: Alexander Viro Cc: Tom Herbert Cc: stable # 2.6.35 Tested-by: Dave Jones Signed-off-by: Jens Axboe --- fs/splice.c | 35 ++++++++++++++++++++--------------- include/linux/splice.h | 8 ++++---- kernel/relay.c | 5 +++-- kernel/trace/trace.c | 6 ++++-- mm/shmem.c | 3 ++- net/core/skbuff.c | 1 + 6 files changed, 34 insertions(+), 24 deletions(-) diff --git a/fs/splice.c b/fs/splice.c index c9f1318a3b82..7bf08fa22ec9 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -273,13 +273,16 @@ void spd_release_page(struct splice_pipe_desc *spd, unsigned int i) * Check if we need to grow the arrays holding pages and partial page * descriptions. */ -int splice_grow_spd(struct pipe_inode_info *pipe, struct splice_pipe_desc *spd) +int splice_grow_spd(const struct pipe_inode_info *pipe, struct splice_pipe_desc *spd) { - if (pipe->buffers <= PIPE_DEF_BUFFERS) + unsigned int buffers = ACCESS_ONCE(pipe->buffers); + + spd->nr_pages_max = buffers; + if (buffers <= PIPE_DEF_BUFFERS) return 0; - spd->pages = kmalloc(pipe->buffers * sizeof(struct page *), GFP_KERNEL); - spd->partial = kmalloc(pipe->buffers * sizeof(struct partial_page), GFP_KERNEL); + spd->pages = kmalloc(buffers * sizeof(struct page *), GFP_KERNEL); + spd->partial = kmalloc(buffers * sizeof(struct partial_page), GFP_KERNEL); if (spd->pages && spd->partial) return 0; @@ -289,10 +292,9 @@ int splice_grow_spd(struct pipe_inode_info *pipe, struct splice_pipe_desc *spd) return -ENOMEM; } -void splice_shrink_spd(struct pipe_inode_info *pipe, - struct splice_pipe_desc *spd) +void splice_shrink_spd(struct splice_pipe_desc *spd) { - if (pipe->buffers <= PIPE_DEF_BUFFERS) + if (spd->nr_pages_max <= PIPE_DEF_BUFFERS) return; kfree(spd->pages); @@ -315,6 +317,7 @@ __generic_file_splice_read(struct file *in, loff_t *ppos, struct splice_pipe_desc spd = { .pages = pages, .partial = partial, + .nr_pages_max = PIPE_DEF_BUFFERS, .flags = flags, .ops = &page_cache_pipe_buf_ops, .spd_release = spd_release_page, @@ -326,7 +329,7 @@ __generic_file_splice_read(struct file *in, loff_t *ppos, index = *ppos >> PAGE_CACHE_SHIFT; loff = *ppos & ~PAGE_CACHE_MASK; req_pages = (len + loff + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; - nr_pages = min(req_pages, pipe->buffers); + nr_pages = min(req_pages, spd.nr_pages_max); /* * Lookup the (hopefully) full range of pages we need. @@ -497,7 +500,7 @@ fill_it: if (spd.nr_pages) error = splice_to_pipe(pipe, &spd); - splice_shrink_spd(pipe, &spd); + splice_shrink_spd(&spd); return error; } @@ -598,6 +601,7 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos, struct splice_pipe_desc spd = { .pages = pages, .partial = partial, + .nr_pages_max = PIPE_DEF_BUFFERS, .flags = flags, .ops = &default_pipe_buf_ops, .spd_release = spd_release_page, @@ -608,8 +612,8 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos, res = -ENOMEM; vec = __vec; - if (pipe->buffers > PIPE_DEF_BUFFERS) { - vec = kmalloc(pipe->buffers * sizeof(struct iovec), GFP_KERNEL); + if (spd.nr_pages_max > PIPE_DEF_BUFFERS) { + vec = kmalloc(spd.nr_pages_max * sizeof(struct iovec), GFP_KERNEL); if (!vec) goto shrink_ret; } @@ -617,7 +621,7 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos, offset = *ppos & ~PAGE_CACHE_MASK; nr_pages = (len + offset + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; - for (i = 0; i < nr_pages && i < pipe->buffers && len; i++) { + for (i = 0; i < nr_pages && i < spd.nr_pages_max && len; i++) { struct page *page; page = alloc_page(GFP_USER); @@ -665,7 +669,7 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos, shrink_ret: if (vec != __vec) kfree(vec); - splice_shrink_spd(pipe, &spd); + splice_shrink_spd(&spd); return res; err: @@ -1614,6 +1618,7 @@ static long vmsplice_to_pipe(struct file *file, const struct iovec __user *iov, struct splice_pipe_desc spd = { .pages = pages, .partial = partial, + .nr_pages_max = PIPE_DEF_BUFFERS, .flags = flags, .ops = &user_page_pipe_buf_ops, .spd_release = spd_release_page, @@ -1629,13 +1634,13 @@ static long vmsplice_to_pipe(struct file *file, const struct iovec __user *iov, spd.nr_pages = get_iovec_page_array(iov, nr_segs, spd.pages, spd.partial, false, - pipe->buffers); + spd.nr_pages_max); if (spd.nr_pages <= 0) ret = spd.nr_pages; else ret = splice_to_pipe(pipe, &spd); - splice_shrink_spd(pipe, &spd); + splice_shrink_spd(&spd); return ret; } diff --git a/include/linux/splice.h b/include/linux/splice.h index 26e5b613deda..09a545a7dfa3 100644 --- a/include/linux/splice.h +++ b/include/linux/splice.h @@ -51,7 +51,8 @@ struct partial_page { struct splice_pipe_desc { struct page **pages; /* page map */ struct partial_page *partial; /* pages[] may not be contig */ - int nr_pages; /* number of pages in map */ + int nr_pages; /* number of populated pages in map */ + unsigned int nr_pages_max; /* pages[] & partial[] arrays size */ unsigned int flags; /* splice flags */ const struct pipe_buf_operations *ops;/* ops associated with output pipe */ void (*spd_release)(struct splice_pipe_desc *, unsigned int); @@ -85,9 +86,8 @@ extern ssize_t splice_direct_to_actor(struct file *, struct splice_desc *, /* * for dynamic pipe sizing */ -extern int splice_grow_spd(struct pipe_inode_info *, struct splice_pipe_desc *); -extern void splice_shrink_spd(struct pipe_inode_info *, - struct splice_pipe_desc *); +extern int splice_grow_spd(const struct pipe_inode_info *, struct splice_pipe_desc *); +extern void splice_shrink_spd(struct splice_pipe_desc *); extern void spd_release_page(struct splice_pipe_desc *, unsigned int); extern const struct pipe_buf_operations page_cache_pipe_buf_ops; diff --git a/kernel/relay.c b/kernel/relay.c index ab56a1764d4d..e8cd2027abbd 100644 --- a/kernel/relay.c +++ b/kernel/relay.c @@ -1235,6 +1235,7 @@ static ssize_t subbuf_splice_actor(struct file *in, struct splice_pipe_desc spd = { .pages = pages, .nr_pages = 0, + .nr_pages_max = PIPE_DEF_BUFFERS, .partial = partial, .flags = flags, .ops = &relay_pipe_buf_ops, @@ -1302,8 +1303,8 @@ static ssize_t subbuf_splice_actor(struct file *in, ret += padding; out: - splice_shrink_spd(pipe, &spd); - return ret; + splice_shrink_spd(&spd); + return ret; } static ssize_t relay_file_splice_read(struct file *in, diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 68032c6177db..288488082224 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -3609,6 +3609,7 @@ static ssize_t tracing_splice_read_pipe(struct file *filp, .pages = pages_def, .partial = partial_def, .nr_pages = 0, /* This gets updated below. */ + .nr_pages_max = PIPE_DEF_BUFFERS, .flags = flags, .ops = &tracing_pipe_buf_ops, .spd_release = tracing_spd_release_pipe, @@ -3680,7 +3681,7 @@ static ssize_t tracing_splice_read_pipe(struct file *filp, ret = splice_to_pipe(pipe, &spd); out: - splice_shrink_spd(pipe, &spd); + splice_shrink_spd(&spd); return ret; out_err: @@ -4231,6 +4232,7 @@ tracing_buffers_splice_read(struct file *file, loff_t *ppos, struct splice_pipe_desc spd = { .pages = pages_def, .partial = partial_def, + .nr_pages_max = PIPE_DEF_BUFFERS, .flags = flags, .ops = &buffer_pipe_buf_ops, .spd_release = buffer_spd_release, @@ -4318,7 +4320,7 @@ tracing_buffers_splice_read(struct file *file, loff_t *ppos, } ret = splice_to_pipe(pipe, &spd); - splice_shrink_spd(pipe, &spd); + splice_shrink_spd(&spd); out: return ret; } diff --git a/mm/shmem.c b/mm/shmem.c index 585bd220a21e..c244e93a70fa 100644 --- a/mm/shmem.c +++ b/mm/shmem.c @@ -1577,6 +1577,7 @@ static ssize_t shmem_file_splice_read(struct file *in, loff_t *ppos, struct splice_pipe_desc spd = { .pages = pages, .partial = partial, + .nr_pages_max = PIPE_DEF_BUFFERS, .flags = flags, .ops = &page_cache_pipe_buf_ops, .spd_release = spd_release_page, @@ -1665,7 +1666,7 @@ static ssize_t shmem_file_splice_read(struct file *in, loff_t *ppos, if (spd.nr_pages) error = splice_to_pipe(pipe, &spd); - splice_shrink_spd(pipe, &spd); + splice_shrink_spd(&spd); if (error > 0) { *ppos += error; diff --git a/net/core/skbuff.c b/net/core/skbuff.c index 016694d62484..bac3c5756d63 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -1755,6 +1755,7 @@ int skb_splice_bits(struct sk_buff *skb, unsigned int offset, struct splice_pipe_desc spd = { .pages = pages, .partial = partial, + .nr_pages_max = MAX_SKB_FRAGS, .flags = flags, .ops = &sock_pipe_buf_ops, .spd_release = sock_spd_release, -- cgit v1.2.3-59-g8ed1b From 32587371ad3db2f9d335de10dbd8cffd4fff5669 Mon Sep 17 00:00:00 2001 From: Tao Guo Date: Wed, 13 Jun 2012 21:17:21 +0200 Subject: umem: fix up unplugging Fix a regression introduced by 7eaceaccab5f40 ("block: remove per-queue plugging"). In that patch, Jens removed the whole mm_unplug_device() function, which used to be the trigger to make umem start to work. We need to implement unplugging to make umem start to work, or I/O will never be triggered. Signed-off-by: Tao Guo Cc: Neil Brown Cc: Jens Axboe Cc: Shaohua Li Cc: Acked-by: NeilBrown Signed-off-by: Jens Axboe --- drivers/block/umem.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) diff --git a/drivers/block/umem.c b/drivers/block/umem.c index aa2712060bfb..9a72277a31df 100644 --- a/drivers/block/umem.c +++ b/drivers/block/umem.c @@ -513,6 +513,44 @@ static void process_page(unsigned long data) } } +struct mm_plug_cb { + struct blk_plug_cb cb; + struct cardinfo *card; +}; + +static void mm_unplug(struct blk_plug_cb *cb) +{ + struct mm_plug_cb *mmcb = container_of(cb, struct mm_plug_cb, cb); + + spin_lock_irq(&mmcb->card->lock); + activate(mmcb->card); + spin_unlock_irq(&mmcb->card->lock); + kfree(mmcb); +} + +static int mm_check_plugged(struct cardinfo *card) +{ + struct blk_plug *plug = current->plug; + struct mm_plug_cb *mmcb; + + if (!plug) + return 0; + + list_for_each_entry(mmcb, &plug->cb_list, cb.list) { + if (mmcb->cb.callback == mm_unplug && mmcb->card == card) + return 1; + } + /* Not currently on the callback list */ + mmcb = kmalloc(sizeof(*mmcb), GFP_ATOMIC); + if (!mmcb) + return 0; + + mmcb->card = card; + mmcb->cb.callback = mm_unplug; + list_add(&mmcb->cb.list, &plug->cb_list); + return 1; +} + static void mm_make_request(struct request_queue *q, struct bio *bio) { struct cardinfo *card = q->queuedata; @@ -523,6 +561,8 @@ static void mm_make_request(struct request_queue *q, struct bio *bio) *card->biotail = bio; bio->bi_next = NULL; card->biotail = &bio->bi_next; + if (bio->bi_rw & REQ_SYNC || !mm_check_plugged(card)) + activate(card); spin_unlock_irq(&card->lock); return; -- cgit v1.2.3-59-g8ed1b From 1d29cfa57471a5e4b8a7c2a7433eeba170d3ad92 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 29 May 2012 18:46:06 -0700 Subject: driver core: fixup reversed deferred probe order If driver requests probe deferral, it will be added to deferred_probe_pending_list by driver_deferred_probe_add(), but, it used list_add(). Because of that, deferred probe will be run as reversed order. This patch uses list_add_tail(), and solved this issue. Signed-off-by: Kuninori Morimoto Signed-off-by: Greg Kroah-Hartman --- drivers/base/dd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/base/dd.c b/drivers/base/dd.c index 1b1cbb571d38..dcb8a6e48692 100644 --- a/drivers/base/dd.c +++ b/drivers/base/dd.c @@ -100,7 +100,7 @@ static void driver_deferred_probe_add(struct device *dev) mutex_lock(&deferred_probe_mutex); if (list_empty(&dev->p->deferred_probe)) { dev_dbg(dev, "Added to deferred list\n"); - list_add(&dev->p->deferred_probe, &deferred_probe_pending_list); + list_add_tail(&dev->p->deferred_probe, &deferred_probe_pending_list); } mutex_unlock(&deferred_probe_mutex); } -- cgit v1.2.3-59-g8ed1b From aa189ecdc0c7fad2166ba6d133df8bd214550f68 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Tue, 29 May 2012 16:39:10 +0300 Subject: misc: mei: set IRQF_ONESHOT for msi request_threaded_irq when the default irq quick handler is used then IRQF_ONESHOT must be set otherwise the request fails and following error is displayed: genirq: Threaded irq requested with handler=NULL and !ONESHOT for irq ... Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index c70333228337..88e5953eb5be 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -982,7 +982,7 @@ static int __devinit mei_probe(struct pci_dev *pdev, err = request_threaded_irq(pdev->irq, NULL, mei_interrupt_thread_handler, - 0, mei_driver_name, dev); + IRQF_ONESHOT, mei_driver_name, dev); else err = request_threaded_irq(pdev->irq, mei_interrupt_quick_handler, -- cgit v1.2.3-59-g8ed1b From a44cab4aff7e72e7052521121fd8ceca51351534 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Tue, 29 May 2012 16:39:11 +0300 Subject: misc: mei: unregister misc device in pci_remove function Since the misc device is registered only in the pci probe function it has to be also unregistered in the counterpart pci remove function and not in the module exit function. In case of probe failure the driver was oopsing in module exit function. Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/main.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index 88e5953eb5be..a5a17e78a96c 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -1101,6 +1101,8 @@ static void __devexit mei_remove(struct pci_dev *pdev) pci_release_regions(pdev); pci_disable_device(pdev); + + misc_deregister(&mei_misc_device); } #ifdef CONFIG_PM static int mei_pci_suspend(struct device *device) @@ -1216,7 +1218,6 @@ module_init(mei_init_module); */ static void __exit mei_exit_module(void) { - misc_deregister(&mei_misc_device); pci_unregister_driver(&mei_driver); pr_debug("unloaded successfully.\n"); -- cgit v1.2.3-59-g8ed1b From 1e69d64a28cf3cabd095ada3a49f081c97f997dd Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Tue, 29 May 2012 16:39:12 +0300 Subject: misc: mei: fix stalled read This bug caused severe connectivity issue in the LMS application (LMS is described in Documentation/misc-devices/mei/mei.txt) The bug was introduced in patch: commit 1ccb7b6249f9bc50678e2a383084ed0a34cc9239 staging/mei: propagate error codes up in the write flow The patch has reverted the return value logic of some fo function but the conditional in _mei_irq_thread_read function was not swapped making read always entering the error path Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/interrupt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/mei/interrupt.c b/drivers/misc/mei/interrupt.c index 93936f1b75eb..23f5463d4cae 100644 --- a/drivers/misc/mei/interrupt.c +++ b/drivers/misc/mei/interrupt.c @@ -835,7 +835,7 @@ static int _mei_irq_thread_read(struct mei_device *dev, s32 *slots, struct mei_cl *cl, struct mei_io_list *cmpl_list) { - if ((*slots * sizeof(u32)) >= (sizeof(struct mei_msg_hdr) + + if ((*slots * sizeof(u32)) < (sizeof(struct mei_msg_hdr) + sizeof(struct hbm_flow_control))) { /* return the cancel routine */ list_del(&cb_pos->cb_list); -- cgit v1.2.3-59-g8ed1b From 169dc388685f8a1c1e09546882a114ac850a5d6b Mon Sep 17 00:00:00 2001 From: Samuel Ortiz Date: Mon, 11 Jun 2012 12:18:30 +0300 Subject: misc: mei: Disable MSI when IRQ registration fails Since MSI is enabled right before that, we should disable it when registration fails. Signed-off-by: Samuel Ortiz Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/misc/mei/main.c b/drivers/misc/mei/main.c index a5a17e78a96c..7de13891e49e 100644 --- a/drivers/misc/mei/main.c +++ b/drivers/misc/mei/main.c @@ -992,7 +992,7 @@ static int __devinit mei_probe(struct pci_dev *pdev, if (err) { dev_err(&pdev->dev, "request_threaded_irq failure. irq = %d\n", pdev->irq); - goto unmap_memory; + goto disable_msi; } INIT_DELAYED_WORK(&dev->timer_work, mei_timer); if (mei_hw_init(dev)) { @@ -1023,8 +1023,8 @@ release_irq: mei_disable_interrupts(dev); flush_scheduled_work(); free_irq(pdev->irq, dev); +disable_msi: pci_disable_msi(pdev); -unmap_memory: pci_iounmap(pdev, dev->mem_addr); free_device: kfree(dev); -- cgit v1.2.3-59-g8ed1b From 49fbd3f1c3a67b99c053600a1cd7e5d0be48bed6 Mon Sep 17 00:00:00 2001 From: Tomas Winkler Date: Mon, 11 Jun 2012 12:18:31 +0300 Subject: misc: mei: set WDIOF_ALARMONLY on mei watchdog mei watchdog doesn't reboot the system it only produces event therefore mark it as WDIOF_ALARMONLY. This patch depends on: commit 2bbeed016dd96045ec82c3a309afddcc3a0db1d2 Author: Alan Cox watchdog: Add a flag to indicate the watchdog doesn't reboot things Signed-off-by: Tomas Winkler Signed-off-by: Greg Kroah-Hartman --- drivers/misc/mei/wd.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/misc/mei/wd.c b/drivers/misc/mei/wd.c index 6be5605707b4..e2ec0505eb5c 100644 --- a/drivers/misc/mei/wd.c +++ b/drivers/misc/mei/wd.c @@ -341,7 +341,7 @@ static const struct watchdog_ops wd_ops = { }; static const struct watchdog_info wd_info = { .identity = INTEL_AMT_WATCHDOG_ID, - .options = WDIOF_KEEPALIVEPING, + .options = WDIOF_KEEPALIVEPING | WDIOF_ALARMONLY, }; static struct watchdog_device amt_wd_dev = { -- cgit v1.2.3-59-g8ed1b From 201e4aca5aa179e6c69a4dcd36a3562e56b8d670 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Sat, 26 May 2012 06:07:49 -0700 Subject: pstore/ram: Should update old dmesg buffer before reading Without the update, we'll only see the new dmesg buffer after the reboot, but previously we could see it right away. Making an oops visible in pstore filesystem before reboot is a somewhat dubious feature, but removing it wasn't an intentional change, so let's restore it. For this we have to make persistent_ram_save_old() safe for calling multiple times, and also extern it. Signed-off-by: Anton Vorontsov Acked-by: Kees Cook Signed-off-by: Greg Kroah-Hartman --- fs/pstore/ram.c | 2 ++ fs/pstore/ram_core.c | 15 ++++++++------- include/linux/pstore_ram.h | 1 + 3 files changed, 11 insertions(+), 7 deletions(-) diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c index 9123cce28c1e..16ff7332eae0 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -106,6 +106,8 @@ static ssize_t ramoops_pstore_read(u64 *id, enum pstore_type_id *type, time->tv_sec = 0; time->tv_nsec = 0; + /* Update old/shadowed buffer. */ + persistent_ram_save_old(prz); size = persistent_ram_old_size(prz); *buf = kmalloc(size, GFP_KERNEL); if (*buf == NULL) diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c index 31f8d184f3a0..235513c46aaf 100644 --- a/fs/pstore/ram_core.c +++ b/fs/pstore/ram_core.c @@ -250,23 +250,24 @@ static void notrace persistent_ram_update(struct persistent_ram_zone *prz, persistent_ram_update_ecc(prz, start, count); } -static void __init -persistent_ram_save_old(struct persistent_ram_zone *prz) +void persistent_ram_save_old(struct persistent_ram_zone *prz) { struct persistent_ram_buffer *buffer = prz->buffer; size_t size = buffer_size(prz); size_t start = buffer_start(prz); - char *dest; - persistent_ram_ecc_old(prz); + if (!size) + return; - dest = kmalloc(size, GFP_KERNEL); - if (dest == NULL) { + if (!prz->old_log) { + persistent_ram_ecc_old(prz); + prz->old_log = kmalloc(size, GFP_KERNEL); + } + if (!prz->old_log) { pr_err("persistent_ram: failed to allocate buffer\n"); return; } - prz->old_log = dest; prz->old_log_size = size; memcpy(prz->old_log, &buffer->data[start], size - start); memcpy(prz->old_log + size - start, &buffer->data[0], start); diff --git a/include/linux/pstore_ram.h b/include/linux/pstore_ram.h index 7ed7fd4dba49..4491e8ff36e6 100644 --- a/include/linux/pstore_ram.h +++ b/include/linux/pstore_ram.h @@ -75,6 +75,7 @@ struct persistent_ram_zone *persistent_ram_init_ringbuffer(struct device *dev, int persistent_ram_write(struct persistent_ram_zone *prz, const void *s, unsigned int count); +void persistent_ram_save_old(struct persistent_ram_zone *prz); size_t persistent_ram_old_size(struct persistent_ram_zone *prz); void *persistent_ram_old(struct persistent_ram_zone *prz); void persistent_ram_free_old(struct persistent_ram_zone *prz); -- cgit v1.2.3-59-g8ed1b From 25b63da64708212985c06c7f8b089d356efdd9cf Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Sat, 26 May 2012 06:07:50 -0700 Subject: pstore/ram_core: Do not reset restored zone's position and size Otherwise, the files will survive just one reboot, and on a subsequent boot they will disappear. Signed-off-by: Anton Vorontsov Signed-off-by: Greg Kroah-Hartman --- fs/pstore/ram_core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c index 235513c46aaf..f6650d12c0c1 100644 --- a/fs/pstore/ram_core.c +++ b/fs/pstore/ram_core.c @@ -406,6 +406,7 @@ static int __init persistent_ram_post_init(struct persistent_ram_zone *prz, bool " size %zu, start %zu\n", buffer_size(prz), buffer_start(prz)); persistent_ram_save_old(prz); + return 0; } } else { pr_info("persistent_ram: no valid data in buffer" -- cgit v1.2.3-59-g8ed1b From fce397930475f7efc712a1345dc0dad269a10544 Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Sat, 26 May 2012 06:07:51 -0700 Subject: pstore/ram_core: Factor persistent_ram_zap() out of post_init() A handy function that we will use outside of ram_core soon. But so far just factor it out and start using it in post_init(). Signed-off-by: Anton Vorontsov Acked-by: Kees Cook Signed-off-by: Greg Kroah-Hartman --- fs/pstore/ram_core.c | 11 ++++++++--- include/linux/pstore_ram.h | 1 + 2 files changed, 9 insertions(+), 3 deletions(-) diff --git a/fs/pstore/ram_core.c b/fs/pstore/ram_core.c index f6650d12c0c1..c5fbdbbf81ac 100644 --- a/fs/pstore/ram_core.c +++ b/fs/pstore/ram_core.c @@ -320,6 +320,13 @@ void persistent_ram_free_old(struct persistent_ram_zone *prz) prz->old_log_size = 0; } +void persistent_ram_zap(struct persistent_ram_zone *prz) +{ + atomic_set(&prz->buffer->start, 0); + atomic_set(&prz->buffer->size, 0); + persistent_ram_update_header_ecc(prz); +} + static void *persistent_ram_vmap(phys_addr_t start, size_t size) { struct page **pages; @@ -414,8 +421,7 @@ static int __init persistent_ram_post_init(struct persistent_ram_zone *prz, bool } prz->buffer->sig = PERSISTENT_RAM_SIG; - atomic_set(&prz->buffer->start, 0); - atomic_set(&prz->buffer->size, 0); + persistent_ram_zap(prz); return 0; } @@ -450,7 +456,6 @@ struct persistent_ram_zone * __init persistent_ram_new(phys_addr_t start, goto err; persistent_ram_post_init(prz, ecc); - persistent_ram_update_header_ecc(prz); return prz; err: diff --git a/include/linux/pstore_ram.h b/include/linux/pstore_ram.h index 4491e8ff36e6..3b823d49a85a 100644 --- a/include/linux/pstore_ram.h +++ b/include/linux/pstore_ram.h @@ -69,6 +69,7 @@ struct persistent_ram_zone * __init persistent_ram_new(phys_addr_t start, size_t size, bool ecc); void persistent_ram_free(struct persistent_ram_zone *prz); +void persistent_ram_zap(struct persistent_ram_zone *prz); struct persistent_ram_zone *persistent_ram_init_ringbuffer(struct device *dev, bool ecc); -- cgit v1.2.3-59-g8ed1b From 93cce049682a1aebd49766f29af363e5b8770aed Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Sat, 26 May 2012 06:07:52 -0700 Subject: pstore/ram: Should zap persistent zone on unlink Otherwise, unlinked file will reappear on the next boot. Reported-by: Kees Cook Signed-off-by: Anton Vorontsov Acked-by: Kees Cook Signed-off-by: Greg Kroah-Hartman --- fs/pstore/ram.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c index 16ff7332eae0..453030f9c5bc 100644 --- a/fs/pstore/ram.c +++ b/fs/pstore/ram.c @@ -186,6 +186,7 @@ static int ramoops_pstore_erase(enum pstore_type_id type, u64 id, return -EINVAL; persistent_ram_free_old(cxt->przs[id]); + persistent_ram_zap(cxt->przs[id]); return 0; } -- cgit v1.2.3-59-g8ed1b From 364ed2f4653d7c86ebedcc116a9cb34fd272867c Mon Sep 17 00:00:00 2001 From: Anton Vorontsov Date: Sat, 26 May 2012 06:07:53 -0700 Subject: pstore/inode: Make pstore_fill_super() static There's no reason to extern it. The patch fixes the annoying sparse warning: CHECK fs/pstore/inode.c fs/pstore/inode.c:264:5: warning: symbol 'pstore_fill_super' was not declared. Should it be static? Signed-off-by: Anton Vorontsov Acked-by: Kees Cook Signed-off-by: Greg Kroah-Hartman --- fs/pstore/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/pstore/inode.c b/fs/pstore/inode.c index aeb19e68e086..11a2aa2a56c4 100644 --- a/fs/pstore/inode.c +++ b/fs/pstore/inode.c @@ -258,7 +258,7 @@ fail: return rc; } -int pstore_fill_super(struct super_block *sb, void *data, int silent) +static int pstore_fill_super(struct super_block *sb, void *data, int silent) { struct inode *inode; -- cgit v1.2.3-59-g8ed1b From fdec53d5203ee3d44be7c09d1524e3a6287d46a7 Mon Sep 17 00:00:00 2001 From: Javi Merino Date: Wed, 13 Jun 2012 15:07:00 +0100 Subject: DMA: PL330: Fix racy mutex unlock pl330_update() stores a pointer to the thrd->req that finished, which contains a pointer to the corresponding pl330_req. This is done with the pl330_lock held. Then, it iterates through the req_done list, calling the callback for each of the requests that are done. The problem is that the driver releases the lock before calling the callback for each of the callbacks. pl330_submit_req() running in another processor can then acquire the lock and insert another request in one of the thrd->req that hasn't been processed yet, replacing the pointer to pl330_req there. When the callback returns in pl330_update() and the next rqdone is popped from the list, it dereferences the pl330_req pointer to the just scheduled pl330_req, instead of the one that has finished, calling pl330 with the wrong r. This patch fixes this by storing the pointer to pl330_req directly in the list. Signed-off-by: Javi Merino Cc: Jassi Brar Acked-by: Jassi Brar Signed-off-by: Vinod Koul --- drivers/dma/pl330.c | 26 ++++++++++---------------- 1 file changed, 10 insertions(+), 16 deletions(-) diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c index 3ce7d553a746..e4feba6b03c0 100644 --- a/drivers/dma/pl330.c +++ b/drivers/dma/pl330.c @@ -392,6 +392,8 @@ struct pl330_req { struct pl330_reqcfg *cfg; /* Pointer to first xfer in the request. */ struct pl330_xfer *x; + /* Hook to attach to DMAC's list of reqs with due callback */ + struct list_head rqd; }; /* @@ -461,8 +463,6 @@ struct _pl330_req { /* Number of bytes taken to setup MC for the req */ u32 mc_len; struct pl330_req *r; - /* Hook to attach to DMAC's list of reqs with due callback */ - struct list_head rqd; }; /* ToBeDone for tasklet */ @@ -1683,7 +1683,7 @@ static void pl330_dotask(unsigned long data) /* Returns 1 if state was updated, 0 otherwise */ static int pl330_update(const struct pl330_info *pi) { - struct _pl330_req *rqdone; + struct pl330_req *rqdone, *tmp; struct pl330_dmac *pl330; unsigned long flags; void __iomem *regs; @@ -1750,7 +1750,10 @@ static int pl330_update(const struct pl330_info *pi) if (active == -1) /* Aborted */ continue; - rqdone = &thrd->req[active]; + /* Detach the req */ + rqdone = thrd->req[active].r; + thrd->req[active].r = NULL; + mark_free(thrd, active); /* Get going again ASAP */ @@ -1762,20 +1765,11 @@ static int pl330_update(const struct pl330_info *pi) } /* Now that we are in no hurry, do the callbacks */ - while (!list_empty(&pl330->req_done)) { - struct pl330_req *r; - - rqdone = container_of(pl330->req_done.next, - struct _pl330_req, rqd); - - list_del_init(&rqdone->rqd); - - /* Detach the req */ - r = rqdone->r; - rqdone->r = NULL; + list_for_each_entry_safe(rqdone, tmp, &pl330->req_done, rqd) { + list_del(&rqdone->rqd); spin_unlock_irqrestore(&pl330->lock, flags); - _callback(r, PL330_ERR_NONE); + _callback(rqdone, PL330_ERR_NONE); spin_lock_irqsave(&pl330->lock, flags); } -- cgit v1.2.3-59-g8ed1b From b9b52918abe88d9135dd570fb394b9c432eb1cfd Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Tue, 12 Jun 2012 10:49:51 +0100 Subject: ARM: 7422/1: mmc: mmci: Allocate platform memory during Device Tree boot When booting with Device Tree enabled, platform specific information is gathered by parsing the DT binary. Platform data is subsequently populated with the result. The memory required for this is not automatically allocated during Device Tree boot, so we'll do it here instead. Acked-by: Linus Walleij Signed-off-by: Lee Jones Signed-off-by: Russell King --- drivers/mmc/host/mmci.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index f0fcce40cd8d..0045ee001ec7 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -1276,6 +1276,12 @@ static int __devinit mmci_probe(struct amba_device *dev, return -EINVAL; } + if (!plat) { + plat = devm_kzalloc(&dev->dev, sizeof(*plat), GFP_KERNEL); + if (!plat) + return -ENOMEM; + } + if (np) mmci_dt_populate_generic_pdata(np, plat); -- cgit v1.2.3-59-g8ed1b From 2307574a50dcb0f9c13e541ca3a196f7554af977 Mon Sep 17 00:00:00 2001 From: Rabin Vincent Date: Tue, 12 Jun 2012 12:31:43 +0100 Subject: ARM: 7423/1: kprobes: run t32_simulate_ldr_literal() without insn slot t32_simulate_ldr_literal() can be run without an instruction slot, so it should be using DECODE_SIMULATEX instead of DECODE_EMULATEX. Acked-by: Jon Medhurst Signed-off-by: Rabin Vincent Signed-off-by: Russell King --- arch/arm/kernel/kprobes-thumb.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/kernel/kprobes-thumb.c b/arch/arm/kernel/kprobes-thumb.c index 8f96ec778e8d..6123daf397a7 100644 --- a/arch/arm/kernel/kprobes-thumb.c +++ b/arch/arm/kernel/kprobes-thumb.c @@ -660,7 +660,7 @@ static const union decode_item t32_table_1111_100x[] = { /* LDRSB (literal) 1111 1001 x001 1111 xxxx xxxx xxxx xxxx */ /* LDRH (literal) 1111 1000 x011 1111 xxxx xxxx xxxx xxxx */ /* LDRSH (literal) 1111 1001 x011 1111 xxxx xxxx xxxx xxxx */ - DECODE_EMULATEX (0xfe5f0000, 0xf81f0000, t32_simulate_ldr_literal, + DECODE_SIMULATEX(0xfe5f0000, 0xf81f0000, t32_simulate_ldr_literal, REGS(PC, NOSPPCX, 0, 0, 0)), /* STRB (immediate) 1111 1000 0000 xxxx xxxx 1xxx xxxx xxxx */ -- cgit v1.2.3-59-g8ed1b From 2bea29b774ccb4bf32c7b299c677fccc5a1d8443 Mon Sep 17 00:00:00 2001 From: Mircea Gherzan Date: Mon, 11 Jun 2012 23:52:25 +0100 Subject: ARM: 7421/1: bpf_jit: BPF_S_ANC_ALU_XOR_X support JIT support for the XOR operation introduced by the commit ffe06c17afbb. Signed-off-by: Mircea Gherzan Signed-off-by: Russell King --- arch/arm/net/bpf_jit_32.c | 5 +++++ arch/arm/net/bpf_jit_32.h | 4 ++++ 2 files changed, 9 insertions(+) diff --git a/arch/arm/net/bpf_jit_32.c b/arch/arm/net/bpf_jit_32.c index 62135849f48b..c641fb685017 100644 --- a/arch/arm/net/bpf_jit_32.c +++ b/arch/arm/net/bpf_jit_32.c @@ -762,6 +762,11 @@ b_epilogue: update_on_xread(ctx); emit(ARM_MOV_R(r_A, r_X), ctx); break; + case BPF_S_ANC_ALU_XOR_X: + /* A ^= X */ + update_on_xread(ctx); + emit(ARM_EOR_R(r_A, r_A, r_X), ctx); + break; case BPF_S_ANC_PROTOCOL: /* A = ntohs(skb->protocol) */ ctx->seen |= SEEN_SKB; diff --git a/arch/arm/net/bpf_jit_32.h b/arch/arm/net/bpf_jit_32.h index 99ae5e3f46d2..7fa2f7d3cb90 100644 --- a/arch/arm/net/bpf_jit_32.h +++ b/arch/arm/net/bpf_jit_32.h @@ -68,6 +68,8 @@ #define ARM_INST_CMP_R 0x01500000 #define ARM_INST_CMP_I 0x03500000 +#define ARM_INST_EOR_R 0x00200000 + #define ARM_INST_LDRB_I 0x05d00000 #define ARM_INST_LDRB_R 0x07d00000 #define ARM_INST_LDRH_I 0x01d000b0 @@ -132,6 +134,8 @@ #define ARM_CMP_R(rn, rm) _AL3_R(ARM_INST_CMP, 0, rn, rm) #define ARM_CMP_I(rn, imm) _AL3_I(ARM_INST_CMP, 0, rn, imm) +#define ARM_EOR_R(rd, rn, rm) _AL3_R(ARM_INST_EOR, rd, rn, rm) + #define ARM_LDR_I(rt, rn, off) (ARM_INST_LDR_I | (rt) << 12 | (rn) << 16 \ | (off)) #define ARM_LDRB_I(rt, rn, off) (ARM_INST_LDRB_I | (rt) << 12 | (rn) << 16 \ -- cgit v1.2.3-59-g8ed1b From f960727e6c98a36018029c0512aa03f1c5faa914 Mon Sep 17 00:00:00 2001 From: Vishal Agarwal Date: Wed, 13 Jun 2012 05:32:43 +0530 Subject: Bluetooth: Fix sending HCI_Disconnect only when connected HCI_Disconnect should only be sent after connection is established. If connection is not yet established and HCI_Disconnect is called then disconnection complete will be received with a handle which does not exist and hence this event will be ignored. But as mgmt.c will not receive this event, its variable for pending command is not cleared.This will result in future Disconnect commands for that BD Address to be blocked with error busy. Signed-off-by: Vishal Agarwal Acked-by: Johan Hedberg Signed-off-by: Gustavo Padovan --- net/bluetooth/mgmt.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c index 991d5b667674..3e5e3362ea00 100644 --- a/net/bluetooth/mgmt.c +++ b/net/bluetooth/mgmt.c @@ -1598,7 +1598,7 @@ static int disconnect(struct sock *sk, struct hci_dev *hdev, void *data, else conn = hci_conn_hash_lookup_ba(hdev, LE_LINK, &cp->addr.bdaddr); - if (!conn) { + if (!conn || conn->state == BT_OPEN || conn->state == BT_CLOSED) { err = cmd_status(sk, hdev->id, MGMT_OP_DISCONNECT, MGMT_STATUS_NOT_CONNECTED); goto failed; -- cgit v1.2.3-59-g8ed1b From 7b33dc2b050b71de0e202885a26caffbc864d072 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 14 Jun 2012 21:36:09 +0300 Subject: RDMA/ocrdma: Fix off by one in ocrdma_query_gid() The dev->sgid_tbl[] array is allocated in ocrdma_alloc_resources(). It has OCRDMA_MAX_SGID elements so the test here is off by one. Signed-off-by: Dan Carpenter Signed-off-by: Roland Dreier --- drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c index d55d459b7fc8..2e2e7aecc990 100644 --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c @@ -53,7 +53,7 @@ int ocrdma_query_gid(struct ib_device *ibdev, u8 port, dev = get_ocrdma_dev(ibdev); memset(sgid, 0, sizeof(*sgid)); - if (index > OCRDMA_MAX_SGID) + if (index >= OCRDMA_MAX_SGID) return -EINVAL; memcpy(sgid, &dev->sgid_tbl[index], sizeof(*sgid)); -- cgit v1.2.3-59-g8ed1b From c3b15452e253ab0629cd9e400d3fb6d76c76cb73 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Tue, 5 Jun 2012 16:43:53 +0100 Subject: Extcon: Don't try to create duplicate link names We can't create a link from the device to the compatibility switch class since we already create a link from the device to to the extcon class object and we try to use the same name for both links. This causes a loud complaint from sysfs on boot. Signed-off-by: Mark Brown Signed-off-by: Greg Kroah-Hartman --- drivers/extcon/extcon_class.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/extcon/extcon_class.c b/drivers/extcon/extcon_class.c index f598a700ec15..159aeb07b3ba 100644 --- a/drivers/extcon/extcon_class.c +++ b/drivers/extcon/extcon_class.c @@ -762,7 +762,7 @@ int extcon_dev_register(struct extcon_dev *edev, struct device *dev) #if defined(CONFIG_ANDROID) if (switch_class) ret = class_compat_create_link(switch_class, edev->dev, - dev); + NULL); #endif /* CONFIG_ANDROID */ spin_lock_init(&edev->lock); -- cgit v1.2.3-59-g8ed1b From 1bd289d1e8e29c09be0e783a53f16a1dc80684be Mon Sep 17 00:00:00 2001 From: Manohar Vanga Date: Thu, 14 Jun 2012 15:57:01 +0200 Subject: vme: change maintainer e-mail address This changes my e-mail address from my work address to my personal one as I finish my contract with CERN at the end of June 2012. I will continue helping with maintaining the VME driver regardless. Signed-off-by: Manohar Vanga Signed-off-by: Greg Kroah-Hartman --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 14bc7071f9df..bc610ae361f4 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7413,7 +7413,7 @@ F: include/linux/vlynq.h VME SUBSYSTEM M: Martyn Welch -M: Manohar Vanga +M: Manohar Vanga M: Greg Kroah-Hartman L: devel@driverdev.osuosl.org S: Maintained -- cgit v1.2.3-59-g8ed1b From a529ae4ba3acfd97210769e3445e8d8b07ca1112 Mon Sep 17 00:00:00 2001 From: Jiri Kosina Date: Thu, 14 Jun 2012 15:45:09 +0200 Subject: iio: drop wrong reference from Kconfig The documentation lives in drivers/staging/iio/Documentation, but according to Jonathan it's obsolete and needs fixing. Signed-off-by: Jiri Kosina Acked-by: Jonathan Cameron Signed-off-by: Greg Kroah-Hartman --- drivers/iio/Kconfig | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/iio/Kconfig b/drivers/iio/Kconfig index 56eecefcec75..2ec93da41e2c 100644 --- a/drivers/iio/Kconfig +++ b/drivers/iio/Kconfig @@ -8,8 +8,7 @@ menuconfig IIO help The industrial I/O subsystem provides a unified framework for drivers for many different types of embedded sensors using a - number of different physical interfaces (i2c, spi, etc). See - Documentation/iio for more information. + number of different physical interfaces (i2c, spi, etc). if IIO -- cgit v1.2.3-59-g8ed1b From 9f77186dd13125bef301f9136b6075f5530f3d85 Mon Sep 17 00:00:00 2001 From: Ben Chan Date: Thu, 14 Jun 2012 13:18:56 -0700 Subject: staging: gdm72xx: Release netlink socket properly This patch modifies the gdm72xx driver to properly release a netlink socket using netlink_kernel_release. It fixes the following kernel crash, which occurs after repeatedly suspending and resuming a system. kernel BUG at /home/benchan/trunk/src/third_party/kernel/files/mm/slub.c:3471! invalid opcode: 0000 [#1] SMP CPU 2 Modules linked in: asix usbnet snd_hda_codec_hdmi snd_hda_codec_cirrus i2c_dev uinput snd_hda_intel snd_hda_codec snd_hwdep snd_pcm snd_timer bluetooth snd_page_alloc fuse aesni_intel cryptd isl29018(C) aes_x86_64 industrialio(C) memconsole nm10_gpio rtc_cmos nf_conntrack_ipv6 nf_defrag_ipv6 r8169 ath9k mac80211 ip6table_filter ath9k_common ath9k_hw ath cfg80211 xt_mark ip6_tables uvcvideo videobuf2_core videodev videobuf2_vmalloc videobuf2_memops gdmwm(C) joydev Pid: 3125, comm: kworker/u:30 Tainted: G WC 3.4.0 #1 RIP: 0010:[] [] kfree+0x67/0xca RSP: 0018:ffff880134977d60 EFLAGS: 00010246 RAX: 4000000000000400 RBX: ffffffff818832a0 RCX: 0000000000000000 RDX: 4000000000000000 RSI: 0000000000000000 RDI: ffffffff818832a0 RBP: ffff880134977d80 R08: 00000000ffffffff R09: ffffea00000620c0 R10: ffffffff8111b729 R11: ffff880149fb3840 R12: ffffffff81a08840 R13: ffffffff813f5bc3 R14: ffffffff8138ed84 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff88014fb00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00007f7cad963110 CR3: 000000000180b000 CR4: 00000000000407e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process kworker/u:30 (pid: 3125, threadinfo ffff880134976000, task ffff8801330647e0) Stack: 0000000000000002 ffffffff818832a0 ffffffff81a08840 ffff880134977df0 ffff880134977da0 ffffffff813f5bc3 ffff880134977df0 ffffffff81883250 ffff880134977dd0 ffffffff8138e64c 0000000180150010 ffffffff81883250 Call Trace: [] ipv4_sysctl_exit_net+0x23/0x27 [] ops_exit_list+0x27/0x50 [] cleanup_net+0xee/0x17c [] process_one_work+0x199/0x2b8 [] worker_thread+0x13c/0x222 [] ? manage_workers.isra.26+0x171/0x171 [] kthread+0x8b/0x93 [] kernel_thread_helper+0x4/0x10 [] ? __init_kthread_worker+0x39/0x39 [] ? gs_change+0xb/0xb Code: 83 c4 10 49 83 3c 24 00 eb e4 48 83 fb 10 76 76 48 89 df e8 17 e1 ff ff 49 89 c1 48 8b 00 a8 80 75 15 49 f7 01 00 c0 00 00 75 02 <0f> 0b 4c 89 cf e8 b8 b4 fd ff eb 4f 4c 8b 55 08 49 8b 79 30 48 RIP [] kfree+0x67/0xca RSP Signed-off-by: Ben Chan Cc: Sage Ahn Signed-off-by: Greg Kroah-Hartman --- drivers/staging/gdm72xx/netlink_k.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/gdm72xx/netlink_k.c b/drivers/staging/gdm72xx/netlink_k.c index 292af0f7f451..51665132c61b 100644 --- a/drivers/staging/gdm72xx/netlink_k.c +++ b/drivers/staging/gdm72xx/netlink_k.c @@ -104,7 +104,7 @@ struct sock *netlink_init(int unit, void (*cb)(struct net_device *dev, u16 type, void netlink_exit(struct sock *sock) { - sock_release(sock->sk_socket); + netlink_kernel_release(sock); } int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len) -- cgit v1.2.3-59-g8ed1b From 0b91f45b23cb73ce11acdc3cf4c6efd4441e3b3e Mon Sep 17 00:00:00 2001 From: Suresh Siddha Date: Thu, 14 Jun 2012 18:07:15 -0700 Subject: x86, compat: Use test_thread_flag(TIF_IA32) in compat signal delivery Signal delivery compat path may not have the 'TS_COMPAT' flag (that flag indicates how we entered the kernel). So use test_thread_flag(TIF_IA32) instead of is_ia32_task(): one of the functions of TIF_IA32 is just what kind of signal frame we want. Signed-off-by: Suresh Siddha Link: http://lkml.kernel.org/r/1339722435.3475.57.camel@sbsiddha-desk.sc.intel.com Cc: stable@kernel.org # v3.4 Signed-off-by: H. Peter Anvin --- arch/x86/ia32/ia32_signal.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c index daeca56211e3..673ac9b63d6b 100644 --- a/arch/x86/ia32/ia32_signal.c +++ b/arch/x86/ia32/ia32_signal.c @@ -38,7 +38,7 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from) { int err = 0; - bool ia32 = is_ia32_task(); + bool ia32 = test_thread_flag(TIF_IA32); if (!access_ok(VERIFY_WRITE, to, sizeof(compat_siginfo_t))) return -EFAULT; -- cgit v1.2.3-59-g8ed1b From 107a84e61cdd3406c842a0e4be7efffd3a05dba6 Mon Sep 17 00:00:00 2001 From: Thierry Reding Date: Thu, 14 Jun 2012 09:12:35 +0200 Subject: of: match by compatible property first When matching devices against an OF device ID table, the first string of the compatible property that is listed in the table should match, regardless of its position in the table. Cc: Grant Likely Cc: Rob Herring Cc: devicetree-discuss@lists.ozlabs.org Signed-off-by: Thierry Reding Signed-off-by: Rob Herring --- drivers/of/base.c | 30 ++++++++++++++++++++++++++---- 1 file changed, 26 insertions(+), 4 deletions(-) diff --git a/drivers/of/base.c b/drivers/of/base.c index d9bfd49b1935..eada3f4ef801 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -511,6 +511,22 @@ out: } EXPORT_SYMBOL(of_find_node_with_property); +static const struct of_device_id *of_match_compat(const struct of_device_id *matches, + const char *compat) +{ + while (matches->name[0] || matches->type[0] || matches->compatible[0]) { + const char *cp = matches->compatible; + int len = strlen(cp); + + if (len > 0 && of_compat_cmp(compat, cp, len) == 0) + return matches; + + matches++; + } + + return NULL; +} + /** * of_match_node - Tell if an device_node has a matching of_match structure * @matches: array of of device match structures to search in @@ -521,9 +537,18 @@ EXPORT_SYMBOL(of_find_node_with_property); const struct of_device_id *of_match_node(const struct of_device_id *matches, const struct device_node *node) { + struct property *prop; + const char *cp; + if (!matches) return NULL; + of_property_for_each_string(node, "compatible", prop, cp) { + const struct of_device_id *match = of_match_compat(matches, cp); + if (match) + return match; + } + while (matches->name[0] || matches->type[0] || matches->compatible[0]) { int match = 1; if (matches->name[0]) @@ -532,10 +557,7 @@ const struct of_device_id *of_match_node(const struct of_device_id *matches, if (matches->type[0]) match &= node->type && !strcmp(matches->type, node->type); - if (matches->compatible[0]) - match &= of_device_is_compatible(node, - matches->compatible); - if (match) + if (match && !matches->compatible[0]) return matches; matches++; } -- cgit v1.2.3-59-g8ed1b From 458f27a9823a0841acb4ca59e0e7f33e181f85e2 Mon Sep 17 00:00:00 2001 From: Asias He Date: Fri, 15 Jun 2012 08:45:25 +0200 Subject: block: Avoid missed wakeup in request waitqueue After hot-unplug a stressed disk, I found that rl->wait[] is not empty while rl->count[] is empty and there are theads still sleeping on get_request after the queue cleanup. With simple debug code, I found there are exactly nr_sleep - nr_wakeup of theads in D state. So there are missed wakeup. $ dmesg | grep nr_sleep [ 52.917115] ---> nr_sleep=1046, nr_wakeup=873, delta=173 $ vmstat 1 1 173 0 712640 24292 96172 0 0 0 0 419 757 0 0 0 100 0 To quote Tejun: Ah, okay, freed_request() wakes up single waiter with the assumption that after the wakeup there will at least be one successful allocation which in turn will continue the wakeup chain until the wait list is empty - ie. waiter wakeup is dependent on successful request allocation happening after each wakeup. With queue marked dead, any woken up waiter fails the allocation path, so the wakeup chaining is lost and we're left with hung waiters. What we need is wake_up_all() after drain completion. This patch fixes the missed wakeup by waking up all the theads which are sleeping on wait queue after queue drain. Changes in v2: Drop waitqueue_active() optimization Acked-by: Tejun Heo Signed-off-by: Asias He Fixed a bug by me, where stacked devices would oops on calling blk_drain_queue() since ->rq.wait[] do not get initialized unless it's a full queue setup. Signed-off-by: Jens Axboe --- block/blk-core.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/block/blk-core.c b/block/blk-core.c index 3c923a7aeb56..ce7fbf8d85a6 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -361,9 +361,10 @@ EXPORT_SYMBOL(blk_put_queue); */ void blk_drain_queue(struct request_queue *q, bool drain_all) { + int i; + while (true) { bool drain = false; - int i; spin_lock_irq(q->queue_lock); @@ -408,6 +409,18 @@ void blk_drain_queue(struct request_queue *q, bool drain_all) break; msleep(10); } + + /* + * With queue marked dead, any woken up waiter will fail the + * allocation path, so the wakeup chaining is lost and we're + * left with hung waiters. We need to wake up those waiters. + */ + if (q->request_fn) { + spin_lock_irq(q->queue_lock); + for (i = 0; i < ARRAY_SIZE(q->rq.wait); i++) + wake_up_all(&q->rq.wait[i]); + spin_unlock_irq(q->queue_lock); + } } /** -- cgit v1.2.3-59-g8ed1b From 5e5cfac0c622d42eff4fa308e91b3c9c1884b4f0 Mon Sep 17 00:00:00 2001 From: Asias He Date: Thu, 24 May 2012 23:28:52 +0800 Subject: block: Mitigate lock unbalance caused by lock switching Commit 777eb1bf15b8532c396821774bf6451e563438f5 disconnects externally supplied queue_lock before blk_drain_queue(). Switching the lock would introduce lock unbalance because theads which have taken the external lock might unlock the internal lock in the during the queue drain. This patch mitigate this by disconnecting the lock after the queue draining since queue draining makes a lot of request_queue users go away. However, please note, this patch only makes the problem less likely to happen. Anyone who still holds a ref might try to issue a new request on a dead queue after the blk_cleanup_queue() finishes draining, the lock unbalance might still happen in this case. ===================================== [ BUG: bad unlock balance detected! ] 3.4.0+ #288 Not tainted ------------------------------------- fio/17706 is trying to release lock (&(&q->__queue_lock)->rlock) at: [] blk_queue_bio+0x2a2/0x380 but there are no more locks to release! other info that might help us debug this: 1 lock held by fio/17706: #0: (&(&vblk->lock)->rlock){......}, at: [] get_request_wait+0x19a/0x250 stack backtrace: Pid: 17706, comm: fio Not tainted 3.4.0+ #288 Call Trace: [] ? blk_queue_bio+0x2a2/0x380 [] print_unlock_inbalance_bug+0xf9/0x100 [] lock_release_non_nested+0x1df/0x330 [] ? dio_bio_end_aio+0x34/0xc0 [] ? bio_check_pages_dirty+0x85/0xe0 [] ? dio_bio_end_aio+0xb1/0xc0 [] ? blk_queue_bio+0x2a2/0x380 [] ? blk_queue_bio+0x2a2/0x380 [] lock_release+0xd9/0x250 [] _raw_spin_unlock_irq+0x23/0x40 [] blk_queue_bio+0x2a2/0x380 [] generic_make_request+0xca/0x100 [] submit_bio+0x76/0xf0 [] ? set_page_dirty_lock+0x3c/0x60 [] ? bio_set_pages_dirty+0x51/0x70 [] do_blockdev_direct_IO+0xbf8/0xee0 [] ? blkdev_get_block+0x80/0x80 [] __blockdev_direct_IO+0x55/0x60 [] ? blkdev_get_block+0x80/0x80 [] blkdev_direct_IO+0x57/0x60 [] ? blkdev_get_block+0x80/0x80 [] generic_file_aio_read+0x70e/0x760 [] ? __lock_acquire+0x215/0x5a0 [] ? aio_run_iocb+0x54/0x1a0 [] ? grab_cache_page_nowait+0xc0/0xc0 [] aio_rw_vect_retry+0x7c/0x1e0 [] ? aio_fsync+0x30/0x30 [] aio_run_iocb+0x66/0x1a0 [] do_io_submit+0x6f0/0xb80 [] ? trace_hardirqs_on_thunk+0x3a/0x3f [] sys_io_submit+0x10/0x20 [] system_call_fastpath+0x16/0x1b Changes since v2: Update commit log to explain how the code is still broken even if we delay the lock switching after the drain. Changes since v1: Update commit log as Tejun suggested. Acked-by: Tejun Heo Signed-off-by: Asias He Signed-off-by: Jens Axboe --- block/blk-core.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index ce7fbf8d85a6..93eb3e4f88ce 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -480,7 +480,6 @@ void blk_cleanup_queue(struct request_queue *q) /* mark @q DEAD, no new request or merges will be allowed afterwards */ mutex_lock(&q->sysfs_lock); queue_flag_set_unlocked(QUEUE_FLAG_DEAD, q); - spin_lock_irq(lock); /* @@ -498,10 +497,6 @@ void blk_cleanup_queue(struct request_queue *q) queue_flag_set(QUEUE_FLAG_NOMERGES, q); queue_flag_set(QUEUE_FLAG_NOXMERGES, q); queue_flag_set(QUEUE_FLAG_DEAD, q); - - if (q->queue_lock != &q->__queue_lock) - q->queue_lock = &q->__queue_lock; - spin_unlock_irq(lock); mutex_unlock(&q->sysfs_lock); @@ -512,6 +507,11 @@ void blk_cleanup_queue(struct request_queue *q) del_timer_sync(&q->backing_dev_info.laptop_mode_wb_timer); blk_sync_queue(q); + spin_lock_irq(lock); + if (q->queue_lock != &q->__queue_lock) + q->queue_lock = &q->__queue_lock; + spin_unlock_irq(lock); + /* @q is and will stay empty, shutdown and put */ blk_put_queue(q); } -- cgit v1.2.3-59-g8ed1b From 76aaa5101fffaef12b45b4c01ed0d0528f23dedf Mon Sep 17 00:00:00 2001 From: Asias He Date: Thu, 14 Jun 2012 09:04:07 +0200 Subject: block: Drop dead function blk_abort_queue() This function was only used by btrfs code in btrfs_abort_devices() (seems in a wrong way). It was removed in commit d07eb9117050c9ed3f78296ebcc06128b52693be, So, Let's remove the dead code to avoid any confusion. Changes in v2: update commit log, btrfs_abort_devices() was removed already. Cc: Jens Axboe Cc: linux-kernel@vger.kernel.org Cc: Chris Mason Cc: linux-btrfs@vger.kernel.org Cc: David Sterba Signed-off-by: Asias He Signed-off-by: Jens Axboe --- block/blk-timeout.c | 41 ----------------------------------------- include/linux/blkdev.h | 1 - 2 files changed, 42 deletions(-) diff --git a/block/blk-timeout.c b/block/blk-timeout.c index 780354888958..6e4744cbfb56 100644 --- a/block/blk-timeout.c +++ b/block/blk-timeout.c @@ -197,44 +197,3 @@ void blk_add_timer(struct request *req) mod_timer(&q->timeout, expiry); } -/** - * blk_abort_queue -- Abort all request on given queue - * @queue: pointer to queue - * - */ -void blk_abort_queue(struct request_queue *q) -{ - unsigned long flags; - struct request *rq, *tmp; - LIST_HEAD(list); - - /* - * Not a request based block device, nothing to abort - */ - if (!q->request_fn) - return; - - spin_lock_irqsave(q->queue_lock, flags); - - elv_abort_queue(q); - - /* - * Splice entries to local list, to avoid deadlocking if entries - * get readded to the timeout list by error handling - */ - list_splice_init(&q->timeout_list, &list); - - list_for_each_entry_safe(rq, tmp, &list, timeout_list) - blk_abort_request(rq); - - /* - * Occasionally, blk_abort_request() will return without - * deleting the element from the list. Make sure we add those back - * instead of leaving them on the local stack list. - */ - list_splice(&list, &q->timeout_list); - - spin_unlock_irqrestore(q->queue_lock, flags); - -} -EXPORT_SYMBOL_GPL(blk_abort_queue); diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h index ba43f408baa3..07954b05b86c 100644 --- a/include/linux/blkdev.h +++ b/include/linux/blkdev.h @@ -827,7 +827,6 @@ extern bool __blk_end_request_err(struct request *rq, int error); extern void blk_complete_request(struct request *); extern void __blk_complete_request(struct request *); extern void blk_abort_request(struct request *); -extern void blk_abort_queue(struct request_queue *); extern void blk_unprep_request(struct request *); /* -- cgit v1.2.3-59-g8ed1b From 6d9359280753d2955f86d6411047516a9431eb51 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Fri, 15 Jun 2012 12:52:46 +0200 Subject: scsi: Silence unnecessary warnings about ioctl to partition Sometimes, warnings about ioctls to partition happen often enough that they form majority of the warnings in the kernel log and users complain. In some cases warnings are about ioctls such as SG_IO so it's not good to get rid of the warnings completely as they can ease debugging of userspace problems when ioctl is refused. Since I have seen warnings from lots of commands, including some proprietary userspace applications, I don't think disallowing the ioctls for processes with CAP_SYS_RAWIO will happen in the near future if ever. So lets just stop warning for processes with CAP_SYS_RAWIO for which ioctl is allowed. CC: Paolo Bonzini CC: James Bottomley CC: linux-scsi@vger.kernel.org Acked-by: Paolo Bonzini Signed-off-by: Jan Kara Signed-off-by: Jens Axboe --- block/scsi_ioctl.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/block/scsi_ioctl.c b/block/scsi_ioctl.c index 260fa80ef575..9a87daa6f4fb 100644 --- a/block/scsi_ioctl.c +++ b/block/scsi_ioctl.c @@ -721,11 +721,14 @@ int scsi_verify_blk_ioctl(struct block_device *bd, unsigned int cmd) break; } + if (capable(CAP_SYS_RAWIO)) + return 0; + /* In particular, rule out all resets and host-specific ioctls. */ printk_ratelimited(KERN_WARNING "%s: sending ioctl %x to a partition!\n", current->comm, cmd); - return capable(CAP_SYS_RAWIO) ? 0 : -ENOIOCTLCMD; + return -ENOIOCTLCMD; } EXPORT_SYMBOL(scsi_verify_blk_ioctl); -- cgit v1.2.3-59-g8ed1b From e8d4e8be860d935099ffcf695dcd29b55ae50b36 Mon Sep 17 00:00:00 2001 From: Pratyush Anand Date: Fri, 15 Jun 2012 11:54:00 +0530 Subject: usb: dwc3: fix giveback of queued request in ep_dequeue In case of ep_dequeue , if dequeued request was submitted for dma transfer, then endpoint is stopped. Once endpoint is stooped, callback for the dequeued request must be called. Signed-off-by: Pratyush Anand Signed-off-by: Felipe Balbi --- drivers/usb/dwc3/gadget.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 3df1a1973b05..ec70df7aba17 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1091,7 +1091,7 @@ static int dwc3_gadget_ep_dequeue(struct usb_ep *ep, if (r == req) { /* wait until it is processed */ dwc3_stop_active_transfer(dwc, dep->number); - goto out0; + goto out1; } dev_err(dwc->dev, "request %p was not queued to %s\n", request, ep->name); @@ -1099,6 +1099,7 @@ static int dwc3_gadget_ep_dequeue(struct usb_ep *ep, goto out0; } +out1: /* giveback the request */ dwc3_gadget_giveback(dep, req, -ECONNRESET); -- cgit v1.2.3-59-g8ed1b From 3026b0e942c65c65c8fc80d391d004228b52b916 Mon Sep 17 00:00:00 2001 From: Lubomir Schmidt Date: Fri, 15 Jun 2012 15:12:17 -0500 Subject: staging: r8712u: Add new USB IDs There are two new devices for this driver. Signed-off-by: Larry Finger Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/staging/rtl8712/usb_intf.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/staging/rtl8712/usb_intf.c b/drivers/staging/rtl8712/usb_intf.c index 9bd18e2d0513..69f616c6964e 100644 --- a/drivers/staging/rtl8712/usb_intf.c +++ b/drivers/staging/rtl8712/usb_intf.c @@ -102,6 +102,8 @@ static struct usb_device_id rtl871x_usb_id_tbl[] = { /* - */ {USB_DEVICE(0x20F4, 0x646B)}, {USB_DEVICE(0x083A, 0xC512)}, + {USB_DEVICE(0x25D4, 0x4CA1)}, + {USB_DEVICE(0x25D4, 0x4CAB)}, /* RTL8191SU */ /* Realtek */ -- cgit v1.2.3-59-g8ed1b From e2ae715d66bf4becfb85eb84b7150e23cf27df30 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Fri, 15 Jun 2012 14:07:51 +0200 Subject: kmsg - kmsg_dump() use iterator to receive log buffer content Provide an iterator to receive the log buffer content, and convert all kmsg_dump() users to it. The structured data in the kmsg buffer now contains binary data, which should no longer be copied verbatim to the kmsg_dump() users. The iterator should provide reliable access to the buffer data, and also supports proper log line-aware chunking of data while iterating. Signed-off-by: Kay Sievers Tested-by: Tony Luck Reported-by: Anton Vorontsov Tested-by: Anton Vorontsov Signed-off-by: Greg Kroah-Hartman --- arch/powerpc/platforms/pseries/nvram.c | 61 +------- arch/x86/platform/mrst/early_printk_mrst.c | 13 +- drivers/mtd/mtdoops.c | 22 +-- fs/pstore/platform.c | 34 ++--- include/linux/kmsg_dump.h | 45 +++++- kernel/printk.c | 220 +++++++++++++++++++++++++---- 6 files changed, 258 insertions(+), 137 deletions(-) diff --git a/arch/powerpc/platforms/pseries/nvram.c b/arch/powerpc/platforms/pseries/nvram.c index 36f957f31842..8733a86ad52e 100644 --- a/arch/powerpc/platforms/pseries/nvram.c +++ b/arch/powerpc/platforms/pseries/nvram.c @@ -68,9 +68,7 @@ static const char *pseries_nvram_os_partitions[] = { }; static void oops_to_nvram(struct kmsg_dumper *dumper, - enum kmsg_dump_reason reason, - const char *old_msgs, unsigned long old_len, - const char *new_msgs, unsigned long new_len); + enum kmsg_dump_reason reason); static struct kmsg_dumper nvram_kmsg_dumper = { .dump = oops_to_nvram @@ -503,28 +501,6 @@ int __init pSeries_nvram_init(void) return 0; } -/* - * Try to capture the last capture_len bytes of the printk buffer. Return - * the amount actually captured. - */ -static size_t capture_last_msgs(const char *old_msgs, size_t old_len, - const char *new_msgs, size_t new_len, - char *captured, size_t capture_len) -{ - if (new_len >= capture_len) { - memcpy(captured, new_msgs + (new_len - capture_len), - capture_len); - return capture_len; - } else { - /* Grab the end of old_msgs. */ - size_t old_tail_len = min(old_len, capture_len - new_len); - memcpy(captured, old_msgs + (old_len - old_tail_len), - old_tail_len); - memcpy(captured + old_tail_len, new_msgs, new_len); - return old_tail_len + new_len; - } -} - /* * Are we using the ibm,rtas-log for oops/panic reports? And if so, * would logging this oops/panic overwrite an RTAS event that rtas_errd @@ -541,27 +517,6 @@ static int clobbering_unread_rtas_event(void) NVRAM_RTAS_READ_TIMEOUT); } -/* Squeeze out each line's severity prefix. */ -static size_t elide_severities(char *buf, size_t len) -{ - char *in, *out, *buf_end = buf + len; - /* Assume a at the very beginning marks the start of a line. */ - int newline = 1; - - in = out = buf; - while (in < buf_end) { - if (newline && in+3 <= buf_end && - *in == '<' && isdigit(in[1]) && in[2] == '>') { - in += 3; - newline = 0; - } else { - newline = (*in == '\n'); - *out++ = *in++; - } - } - return out - buf; -} - /* Derived from logfs_compress() */ static int nvram_compress(const void *in, void *out, size_t inlen, size_t outlen) @@ -619,9 +574,7 @@ static int zip_oops(size_t text_len) * partition. If that's too much, go back and capture uncompressed text. */ static void oops_to_nvram(struct kmsg_dumper *dumper, - enum kmsg_dump_reason reason, - const char *old_msgs, unsigned long old_len, - const char *new_msgs, unsigned long new_len) + enum kmsg_dump_reason reason) { static unsigned int oops_count = 0; static bool panicking = false; @@ -660,14 +613,14 @@ static void oops_to_nvram(struct kmsg_dumper *dumper, return; if (big_oops_buf) { - text_len = capture_last_msgs(old_msgs, old_len, - new_msgs, new_len, big_oops_buf, big_oops_buf_sz); - text_len = elide_severities(big_oops_buf, text_len); + kmsg_dump_get_buffer(dumper, false, + big_oops_buf, big_oops_buf_sz, &text_len); rc = zip_oops(text_len); } if (rc != 0) { - text_len = capture_last_msgs(old_msgs, old_len, - new_msgs, new_len, oops_data, oops_data_sz); + kmsg_dump_rewind(dumper); + kmsg_dump_get_buffer(dumper, true, + oops_data, oops_data_sz, &text_len); err_type = ERR_TYPE_KERNEL_PANIC; *oops_len = (u16) text_len; } diff --git a/arch/x86/platform/mrst/early_printk_mrst.c b/arch/x86/platform/mrst/early_printk_mrst.c index 3c6e328483c7..028454f0c3a5 100644 --- a/arch/x86/platform/mrst/early_printk_mrst.c +++ b/arch/x86/platform/mrst/early_printk_mrst.c @@ -110,19 +110,16 @@ static struct kmsg_dumper dw_dumper; static int dumper_registered; static void dw_kmsg_dump(struct kmsg_dumper *dumper, - enum kmsg_dump_reason reason, - const char *s1, unsigned long l1, - const char *s2, unsigned long l2) + enum kmsg_dump_reason reason) { - int i; + static char line[1024]; + size_t len; /* When run to this, we'd better re-init the HW */ mrst_early_console_init(); - for (i = 0; i < l1; i++) - early_mrst_console.write(&early_mrst_console, s1 + i, 1); - for (i = 0; i < l2; i++) - early_mrst_console.write(&early_mrst_console, s2 + i, 1); + while (kmsg_dump_get_line(dumper, true, line, sizeof(line), &len)) + early_mrst_console.write(&early_mrst_console, line, len); } /* Set the ratio rate to 115200, 8n1, IRQ disabled */ diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c index ae36d7e1e913..551e316e4454 100644 --- a/drivers/mtd/mtdoops.c +++ b/drivers/mtd/mtdoops.c @@ -304,32 +304,17 @@ static void find_next_position(struct mtdoops_context *cxt) } static void mtdoops_do_dump(struct kmsg_dumper *dumper, - enum kmsg_dump_reason reason, const char *s1, unsigned long l1, - const char *s2, unsigned long l2) + enum kmsg_dump_reason reason) { struct mtdoops_context *cxt = container_of(dumper, struct mtdoops_context, dump); - unsigned long s1_start, s2_start; - unsigned long l1_cpy, l2_cpy; - char *dst; - - if (reason != KMSG_DUMP_OOPS && - reason != KMSG_DUMP_PANIC) - return; /* Only dump oopses if dump_oops is set */ if (reason == KMSG_DUMP_OOPS && !dump_oops) return; - dst = cxt->oops_buf + MTDOOPS_HEADER_SIZE; /* Skip the header */ - l2_cpy = min(l2, record_size - MTDOOPS_HEADER_SIZE); - l1_cpy = min(l1, record_size - MTDOOPS_HEADER_SIZE - l2_cpy); - - s2_start = l2 - l2_cpy; - s1_start = l1 - l1_cpy; - - memcpy(dst, s1 + s1_start, l1_cpy); - memcpy(dst + l1_cpy, s2 + s2_start, l2_cpy); + kmsg_dump_get_buffer(dumper, true, cxt->oops_buf + MTDOOPS_HEADER_SIZE, + record_size - MTDOOPS_HEADER_SIZE, NULL); /* Panics must be written immediately */ if (reason != KMSG_DUMP_OOPS) @@ -375,6 +360,7 @@ static void mtdoops_notify_add(struct mtd_info *mtd) return; } + cxt->dump.max_reason = KMSG_DUMP_OOPS; cxt->dump.dump = mtdoops_do_dump; err = kmsg_dump_register(&cxt->dump); if (err) { diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c index 82c585f715e3..03ce7a9b81cc 100644 --- a/fs/pstore/platform.c +++ b/fs/pstore/platform.c @@ -94,20 +94,15 @@ static const char *get_reason_str(enum kmsg_dump_reason reason) * as we can from the end of the buffer. */ static void pstore_dump(struct kmsg_dumper *dumper, - enum kmsg_dump_reason reason, - const char *s1, unsigned long l1, - const char *s2, unsigned long l2) + enum kmsg_dump_reason reason) { - unsigned long s1_start, s2_start; - unsigned long l1_cpy, l2_cpy; - unsigned long size, total = 0; - char *dst; + unsigned long total = 0; const char *why; u64 id; - int hsize, ret; unsigned int part = 1; unsigned long flags = 0; int is_locked = 0; + int ret; why = get_reason_str(reason); @@ -119,30 +114,25 @@ static void pstore_dump(struct kmsg_dumper *dumper, spin_lock_irqsave(&psinfo->buf_lock, flags); oopscount++; while (total < kmsg_bytes) { + char *dst; + unsigned long size; + int hsize; + size_t len; + dst = psinfo->buf; hsize = sprintf(dst, "%s#%d Part%d\n", why, oopscount, part); size = psinfo->bufsize - hsize; dst += hsize; - l2_cpy = min(l2, size); - l1_cpy = min(l1, size - l2_cpy); - - if (l1_cpy + l2_cpy == 0) + if (!kmsg_dump_get_buffer(dumper, true, dst, size, &len)) break; - s2_start = l2 - l2_cpy; - s1_start = l1 - l1_cpy; - - memcpy(dst, s1 + s1_start, l1_cpy); - memcpy(dst + l1_cpy, s2 + s2_start, l2_cpy); - ret = psinfo->write(PSTORE_TYPE_DMESG, reason, &id, part, - hsize + l1_cpy + l2_cpy, psinfo); + hsize + len, psinfo); if (ret == 0 && reason == KMSG_DUMP_OOPS && pstore_is_mounted()) pstore_new_entry = 1; - l1 -= l1_cpy; - l2 -= l2_cpy; - total += l1_cpy + l2_cpy; + + total += hsize + len; part++; } if (in_nmi()) { diff --git a/include/linux/kmsg_dump.h b/include/linux/kmsg_dump.h index 35f7237ec972..af4eb5a39d9a 100644 --- a/include/linux/kmsg_dump.h +++ b/include/linux/kmsg_dump.h @@ -21,6 +21,7 @@ * is passed to the kernel. */ enum kmsg_dump_reason { + KMSG_DUMP_UNDEF, KMSG_DUMP_PANIC, KMSG_DUMP_OOPS, KMSG_DUMP_EMERG, @@ -31,23 +32,37 @@ enum kmsg_dump_reason { /** * struct kmsg_dumper - kernel crash message dumper structure - * @dump: The callback which gets called on crashes. The buffer is passed - * as two sections, where s1 (length l1) contains the older - * messages and s2 (length l2) contains the newer. * @list: Entry in the dumper list (private) + * @dump: Call into dumping code which will retrieve the data with + * through the record iterator + * @max_reason: filter for highest reason number that should be dumped * @registered: Flag that specifies if this is already registered */ struct kmsg_dumper { - void (*dump)(struct kmsg_dumper *dumper, enum kmsg_dump_reason reason, - const char *s1, unsigned long l1, - const char *s2, unsigned long l2); struct list_head list; - int registered; + void (*dump)(struct kmsg_dumper *dumper, enum kmsg_dump_reason reason); + enum kmsg_dump_reason max_reason; + bool active; + bool registered; + + /* private state of the kmsg iterator */ + u32 cur_idx; + u32 next_idx; + u64 cur_seq; + u64 next_seq; }; #ifdef CONFIG_PRINTK void kmsg_dump(enum kmsg_dump_reason reason); +bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog, + char *line, size_t size, size_t *len); + +bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog, + char *buf, size_t size, size_t *len); + +void kmsg_dump_rewind(struct kmsg_dumper *dumper); + int kmsg_dump_register(struct kmsg_dumper *dumper); int kmsg_dump_unregister(struct kmsg_dumper *dumper); @@ -56,6 +71,22 @@ static inline void kmsg_dump(enum kmsg_dump_reason reason) { } +bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog, + const char *line, size_t size, size_t *len) +{ + return false; +} + +bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog, + char *buf, size_t size, size_t *len) +{ + return false; +} + +void kmsg_dump_rewind(struct kmsg_dumper *dumper) +{ +} + static inline int kmsg_dump_register(struct kmsg_dumper *dumper) { return -EINVAL; diff --git a/kernel/printk.c b/kernel/printk.c index f205c25c37e2..ceb4a2f775a1 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -909,7 +909,7 @@ static int syslog_print_all(char __user *buf, int size, bool clear) /* * Find first record that fits, including all following records, * into the user-provided buffer for this dump. - */ + */ seq = clear_seq; idx = clear_idx; while (seq < log_next_seq) { @@ -919,6 +919,8 @@ static int syslog_print_all(char __user *buf, int size, bool clear) idx = log_next(idx); seq++; } + + /* move first record forward until length fits into the buffer */ seq = clear_seq; idx = clear_idx; while (len > size && seq < log_next_seq) { @@ -929,7 +931,7 @@ static int syslog_print_all(char __user *buf, int size, bool clear) seq++; } - /* last message in this dump */ + /* last message fitting into this dump */ next_seq = log_next_seq; len = 0; @@ -2300,48 +2302,210 @@ module_param_named(always_kmsg_dump, always_kmsg_dump, bool, S_IRUGO | S_IWUSR); * kmsg_dump - dump kernel log to kernel message dumpers. * @reason: the reason (oops, panic etc) for dumping * - * Iterate through each of the dump devices and call the oops/panic - * callbacks with the log buffer. + * Call each of the registered dumper's dump() callback, which can + * retrieve the kmsg records with kmsg_dump_get_line() or + * kmsg_dump_get_buffer(). */ void kmsg_dump(enum kmsg_dump_reason reason) { - u64 idx; struct kmsg_dumper *dumper; - const char *s1, *s2; - unsigned long l1, l2; unsigned long flags; if ((reason > KMSG_DUMP_OOPS) && !always_kmsg_dump) return; - /* Theoretically, the log could move on after we do this, but - there's not a lot we can do about that. The new messages - will overwrite the start of what we dump. */ + rcu_read_lock(); + list_for_each_entry_rcu(dumper, &dump_list, list) { + if (dumper->max_reason && reason > dumper->max_reason) + continue; + + /* initialize iterator with data about the stored records */ + dumper->active = true; + + raw_spin_lock_irqsave(&logbuf_lock, flags); + dumper->cur_seq = clear_seq; + dumper->cur_idx = clear_idx; + dumper->next_seq = log_next_seq; + dumper->next_idx = log_next_idx; + raw_spin_unlock_irqrestore(&logbuf_lock, flags); + + /* invoke dumper which will iterate over records */ + dumper->dump(dumper, reason); + + /* reset iterator */ + dumper->active = false; + } + rcu_read_unlock(); +} + +/** + * kmsg_dump_get_line - retrieve one kmsg log line + * @dumper: registered kmsg dumper + * @syslog: include the "<4>" prefixes + * @line: buffer to copy the line to + * @size: maximum size of the buffer + * @len: length of line placed into buffer + * + * Start at the beginning of the kmsg buffer, with the oldest kmsg + * record, and copy one record into the provided buffer. + * + * Consecutive calls will return the next available record moving + * towards the end of the buffer with the youngest messages. + * + * A return value of FALSE indicates that there are no more records to + * read. + */ +bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog, + char *line, size_t size, size_t *len) +{ + unsigned long flags; + struct log *msg; + size_t l = 0; + bool ret = false; + + if (!dumper->active) + goto out; raw_spin_lock_irqsave(&logbuf_lock, flags); - if (syslog_seq < log_first_seq) - idx = syslog_idx; - else - idx = log_first_idx; + if (dumper->cur_seq < log_first_seq) { + /* messages are gone, move to first available one */ + dumper->cur_seq = log_first_seq; + dumper->cur_idx = log_first_idx; + } - if (idx > log_next_idx) { - s1 = log_buf; - l1 = log_next_idx; + /* last entry */ + if (dumper->cur_seq >= log_next_seq) { + raw_spin_unlock_irqrestore(&logbuf_lock, flags); + goto out; + } - s2 = log_buf + idx; - l2 = log_buf_len - idx; - } else { - s1 = ""; - l1 = 0; + msg = log_from_idx(dumper->cur_idx); + l = msg_print_text(msg, syslog, + line, size); + + dumper->cur_idx = log_next(dumper->cur_idx); + dumper->cur_seq++; + ret = true; + raw_spin_unlock_irqrestore(&logbuf_lock, flags); +out: + if (len) + *len = l; + return ret; +} +EXPORT_SYMBOL_GPL(kmsg_dump_get_line); + +/** + * kmsg_dump_get_buffer - copy kmsg log lines + * @dumper: registered kmsg dumper + * @syslog: include the "<4>" prefixes + * @line: buffer to copy the line to + * @size: maximum size of the buffer + * @len: length of line placed into buffer + * + * Start at the end of the kmsg buffer and fill the provided buffer + * with as many of the the *youngest* kmsg records that fit into it. + * If the buffer is large enough, all available kmsg records will be + * copied with a single call. + * + * Consecutive calls will fill the buffer with the next block of + * available older records, not including the earlier retrieved ones. + * + * A return value of FALSE indicates that there are no more records to + * read. + */ +bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog, + char *buf, size_t size, size_t *len) +{ + unsigned long flags; + u64 seq; + u32 idx; + u64 next_seq; + u32 next_idx; + size_t l = 0; + bool ret = false; + + if (!dumper->active) + goto out; + + raw_spin_lock_irqsave(&logbuf_lock, flags); + if (dumper->cur_seq < log_first_seq) { + /* messages are gone, move to first available one */ + dumper->cur_seq = log_first_seq; + dumper->cur_idx = log_first_idx; + } + + /* last entry */ + if (dumper->cur_seq >= dumper->next_seq) { + raw_spin_unlock_irqrestore(&logbuf_lock, flags); + goto out; + } + + /* calculate length of entire buffer */ + seq = dumper->cur_seq; + idx = dumper->cur_idx; + while (seq < dumper->next_seq) { + struct log *msg = log_from_idx(idx); + + l += msg_print_text(msg, true, NULL, 0); + idx = log_next(idx); + seq++; + } + + /* move first record forward until length fits into the buffer */ + seq = dumper->cur_seq; + idx = dumper->cur_idx; + while (l > size && seq < dumper->next_seq) { + struct log *msg = log_from_idx(idx); - s2 = log_buf + idx; - l2 = log_next_idx - idx; + l -= msg_print_text(msg, true, NULL, 0); + idx = log_next(idx); + seq++; } + + /* last message in next interation */ + next_seq = seq; + next_idx = idx; + + l = 0; + while (seq < dumper->next_seq) { + struct log *msg = log_from_idx(idx); + + l += msg_print_text(msg, syslog, + buf + l, size - l); + + idx = log_next(idx); + seq++; + } + + dumper->next_seq = next_seq; + dumper->next_idx = next_idx; + ret = true; raw_spin_unlock_irqrestore(&logbuf_lock, flags); +out: + if (len) + *len = l; + return ret; +} +EXPORT_SYMBOL_GPL(kmsg_dump_get_buffer); - rcu_read_lock(); - list_for_each_entry_rcu(dumper, &dump_list, list) - dumper->dump(dumper, reason, s1, l1, s2, l2); - rcu_read_unlock(); +/** + * kmsg_dump_rewind - reset the interator + * @dumper: registered kmsg dumper + * + * Reset the dumper's iterator so that kmsg_dump_get_line() and + * kmsg_dump_get_buffer() can be called again and used multiple + * times within the same dumper.dump() callback. + */ +void kmsg_dump_rewind(struct kmsg_dumper *dumper) +{ + unsigned long flags; + + raw_spin_lock_irqsave(&logbuf_lock, flags); + dumper->cur_seq = clear_seq; + dumper->cur_idx = clear_idx; + dumper->next_seq = log_next_seq; + dumper->next_idx = log_next_idx; + raw_spin_unlock_irqrestore(&logbuf_lock, flags); } +EXPORT_SYMBOL_GPL(kmsg_dump_rewind); #endif -- cgit v1.2.3-59-g8ed1b From d9cb9bd63eb27ac19f26a8547128c053f43a5da8 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Fri, 15 Jun 2012 00:20:44 +0000 Subject: can: c_can: precedence error in c_can_chip_config() (CAN_CTRLMODE_LISTENONLY & CAN_CTRLMODE_LOOPBACK) is (0x02 & 0x01) which is zero so the condition is never true. The intent here was to test that both flags were set. Cc: # 2.6.39+ Signed-off-by: Dan Carpenter Acked-by: Oliver Hartkopp Signed-off-by: Marc Kleine-Budde Signed-off-by: David S. Miller --- drivers/net/can/c_can/c_can.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c index 8dc84d66eea1..86cd532c78f9 100644 --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -590,8 +590,8 @@ static void c_can_chip_config(struct net_device *dev) priv->write_reg(priv, &priv->regs->control, CONTROL_ENABLE_AR); - if (priv->can.ctrlmode & (CAN_CTRLMODE_LISTENONLY & - CAN_CTRLMODE_LOOPBACK)) { + if ((priv->can.ctrlmode & CAN_CTRLMODE_LISTENONLY) && + (priv->can.ctrlmode & CAN_CTRLMODE_LOOPBACK)) { /* loopback + silent mode : useful for hot self-test */ priv->write_reg(priv, &priv->regs->control, CONTROL_EIE | CONTROL_SIE | CONTROL_IE | CONTROL_TEST); -- cgit v1.2.3-59-g8ed1b From bc14786a100cc6a81cd060e8031ec481241b418c Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Wed, 13 Jun 2012 09:45:16 +0000 Subject: bnx2x: fix panic when TX ring is full There is a off by one error in the minimal number of BD in bnx2x_start_xmit() and bnx2x_tx_int() before stopping/resuming tx queue. A full size GSO packet, with data included in skb->head really needs (MAX_SKB_FRAGS + 4) BDs, because of bnx2x_tx_split() This error triggers if BQL is disabled and heavy TCP transmit traffic occurs. bnx2x_tx_split() definitely can be called, remove a wrong comment. Reported-by: Tomas Hruby Signed-off-by: Eric Dumazet Cc: Eilon Greenstein Cc: Yaniv Rosner Cc: Merav Sicron Cc: Tom Herbert Cc: Robert Evans Cc: Willem de Bruijn Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c index cbc56f274e0c..8098eea9704d 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c @@ -190,7 +190,7 @@ int bnx2x_tx_int(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata) if ((netif_tx_queue_stopped(txq)) && (bp->state == BNX2X_STATE_OPEN) && - (bnx2x_tx_avail(bp, txdata) >= MAX_SKB_FRAGS + 3)) + (bnx2x_tx_avail(bp, txdata) >= MAX_SKB_FRAGS + 4)) netif_tx_wake_queue(txq); __netif_tx_unlock(txq); @@ -2516,8 +2516,6 @@ int bnx2x_poll(struct napi_struct *napi, int budget) /* we split the first BD into headers and data BDs * to ease the pain of our fellow microcode engineers * we use one mapping for both BDs - * So far this has only been observed to happen - * in Other Operating Systems(TM) */ static noinline u16 bnx2x_tx_split(struct bnx2x *bp, struct bnx2x_fp_txdata *txdata, @@ -3171,7 +3169,7 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) txdata->tx_bd_prod += nbd; - if (unlikely(bnx2x_tx_avail(bp, txdata) < MAX_SKB_FRAGS + 3)) { + if (unlikely(bnx2x_tx_avail(bp, txdata) < MAX_SKB_FRAGS + 4)) { netif_tx_stop_queue(txq); /* paired memory barrier is in bnx2x_tx_int(), we have to keep @@ -3180,7 +3178,7 @@ netdev_tx_t bnx2x_start_xmit(struct sk_buff *skb, struct net_device *dev) smp_mb(); fp->eth_q_stats.driver_xoff++; - if (bnx2x_tx_avail(bp, txdata) >= MAX_SKB_FRAGS + 3) + if (bnx2x_tx_avail(bp, txdata) >= MAX_SKB_FRAGS + 4) netif_tx_wake_queue(txq); } txdata->tx_pkt++; -- cgit v1.2.3-59-g8ed1b From 62b1a8ab9b3660bb820d8dfe23148ed6cda38574 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Thu, 14 Jun 2012 06:42:44 +0000 Subject: net: remove skb_orphan_try() Orphaning skb in dev_hard_start_xmit() makes bonding behavior unfriendly for applications sending big UDP bursts : Once packets pass the bonding device and come to real device, they might hit a full qdisc and be dropped. Without orphaning, the sender is automatically throttled because sk->sk_wmemalloc reaches sk->sk_sndbuf (assuming sk_sndbuf is not too big) We could try to defer the orphaning adding another test in dev_hard_start_xmit(), but all this seems of little gain, now that BQL tends to make packets more likely to be parked in Qdisc queues instead of NIC TX ring, in cases where performance matters. Reverts commits : fc6055a5ba31 net: Introduce skb_orphan_try() 87fd308cfc6b net: skb_tx_hash() fix relative to skb_orphan_try() and removes SKBTX_DRV_NEEDS_SK_REF flag Reported-and-bisected-by: Jean-Michel Hautbois Signed-off-by: Eric Dumazet Tested-by: Oliver Hartkopp Acked-by: Oliver Hartkopp Signed-off-by: David S. Miller --- include/linux/skbuff.h | 7 ++----- net/can/raw.c | 3 --- net/core/dev.c | 23 +---------------------- net/iucv/af_iucv.c | 1 - 4 files changed, 3 insertions(+), 31 deletions(-) diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index b534a1be540a..642cb7355df3 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -225,14 +225,11 @@ enum { /* device driver is going to provide hardware time stamp */ SKBTX_IN_PROGRESS = 1 << 2, - /* ensure the originating sk reference is available on driver level */ - SKBTX_DRV_NEEDS_SK_REF = 1 << 3, - /* device driver supports TX zero-copy buffers */ - SKBTX_DEV_ZEROCOPY = 1 << 4, + SKBTX_DEV_ZEROCOPY = 1 << 3, /* generate wifi status information (where possible) */ - SKBTX_WIFI_STATUS = 1 << 5, + SKBTX_WIFI_STATUS = 1 << 4, }; /* diff --git a/net/can/raw.c b/net/can/raw.c index cde1b4a20f75..46cca3a91d19 100644 --- a/net/can/raw.c +++ b/net/can/raw.c @@ -681,9 +681,6 @@ static int raw_sendmsg(struct kiocb *iocb, struct socket *sock, if (err < 0) goto free_skb; - /* to be able to check the received tx sock reference in raw_rcv() */ - skb_shinfo(skb)->tx_flags |= SKBTX_DRV_NEEDS_SK_REF; - skb->dev = dev; skb->sk = sk; diff --git a/net/core/dev.c b/net/core/dev.c index cd0981977f5c..6df214041a5e 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2089,25 +2089,6 @@ static int dev_gso_segment(struct sk_buff *skb, netdev_features_t features) return 0; } -/* - * Try to orphan skb early, right before transmission by the device. - * We cannot orphan skb if tx timestamp is requested or the sk-reference - * is needed on driver level for other reasons, e.g. see net/can/raw.c - */ -static inline void skb_orphan_try(struct sk_buff *skb) -{ - struct sock *sk = skb->sk; - - if (sk && !skb_shinfo(skb)->tx_flags) { - /* skb_tx_hash() wont be able to get sk. - * We copy sk_hash into skb->rxhash - */ - if (!skb->rxhash) - skb->rxhash = sk->sk_hash; - skb_orphan(skb); - } -} - static bool can_checksum_protocol(netdev_features_t features, __be16 protocol) { return ((features & NETIF_F_GEN_CSUM) || @@ -2193,8 +2174,6 @@ int dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev, if (!list_empty(&ptype_all)) dev_queue_xmit_nit(skb, dev); - skb_orphan_try(skb); - features = netif_skb_features(skb); if (vlan_tx_tag_present(skb) && @@ -2304,7 +2283,7 @@ u16 __skb_tx_hash(const struct net_device *dev, const struct sk_buff *skb, if (skb->sk && skb->sk->sk_hash) hash = skb->sk->sk_hash; else - hash = (__force u16) skb->protocol ^ skb->rxhash; + hash = (__force u16) skb->protocol; hash = jhash_1word(hash, hashrnd); return (u16) (((u64) hash * qcount) >> 32) + qoffset; diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index 07d7d55a1b93..cd6f7a991d80 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -372,7 +372,6 @@ static int afiucv_hs_send(struct iucv_message *imsg, struct sock *sock, skb_trim(skb, skb->dev->mtu); } skb->protocol = ETH_P_AF_IUCV; - skb_shinfo(skb)->tx_flags |= SKBTX_DRV_NEEDS_SK_REF; nskb = skb_clone(skb, GFP_ATOMIC); if (!nskb) return -ENOMEM; -- cgit v1.2.3-59-g8ed1b From 0f6efff92524c65fc3ef41c8b936c526580f1db0 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Thu, 14 Jun 2012 08:34:24 +0000 Subject: qlcnic: off by one in qlcnic_init_pci_info() The adapter->npars[] array has QLCNIC_MAX_PCI_FUNC elements. We allocate it that way a few lines earlier in the function. So this test is off by one. Signed-off-by: Dan Carpenter Acked-by: Anirban Chakraborty Signed-off-by: David S. Miller --- drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c index 46e77a2c5121..ad98f4d7919d 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c @@ -479,7 +479,7 @@ qlcnic_init_pci_info(struct qlcnic_adapter *adapter) for (i = 0; i < QLCNIC_MAX_PCI_FUNC; i++) { pfn = pci_info[i].id; - if (pfn > QLCNIC_MAX_PCI_FUNC) { + if (pfn >= QLCNIC_MAX_PCI_FUNC) { ret = QL_STATUS_INVALID_PARAM; goto err_eswitch; } -- cgit v1.2.3-59-g8ed1b From 2a0c451ade8e1783c5d453948289e4a978d417c9 Mon Sep 17 00:00:00 2001 From: Thomas Graf Date: Thu, 14 Jun 2012 23:00:17 +0000 Subject: ipv6: Prevent access to uninitialized fib_table_hash via /proc/net/ipv6_route /proc/net/ipv6_route reflects the contents of fib_table_hash. The proc handler is installed in ip6_route_net_init() whereas fib_table_hash is allocated in fib6_net_init() _after_ the proc handler has been installed. This opens up a short time frame to access fib_table_hash with its pants down. fib6_init() as a whole can't be moved to an earlier position as it also registers the rtnetlink message handlers which should be registered at the end. Therefore split it into fib6_init() which is run early and fib6_init_late() to register the rtnetlink message handlers. Signed-off-by: Thomas Graf Reviewed-by: Neil Horman Signed-off-by: David S. Miller --- include/net/ip6_fib.h | 2 ++ net/ipv6/ip6_fib.c | 18 +++++++++++------- net/ipv6/route.c | 16 +++++++++++----- 3 files changed, 24 insertions(+), 12 deletions(-) diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h index 0ae759a6c76e..209af13b0336 100644 --- a/include/net/ip6_fib.h +++ b/include/net/ip6_fib.h @@ -271,6 +271,8 @@ extern void fib6_run_gc(unsigned long expires, extern void fib6_gc_cleanup(void); extern int fib6_init(void); +extern int fib6_init_late(void); +extern void fib6_cleanup_late(void); #ifdef CONFIG_IPV6_MULTIPLE_TABLES extern int fib6_rules_init(void); diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 74c21b924a79..fbd4afff05fa 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -1692,21 +1692,25 @@ int __init fib6_init(void) ret = register_pernet_subsys(&fib6_net_ops); if (ret) goto out_kmem_cache_create; - - ret = __rtnl_register(PF_INET6, RTM_GETROUTE, NULL, inet6_dump_fib, - NULL); - if (ret) - goto out_unregister_subsys; out: return ret; -out_unregister_subsys: - unregister_pernet_subsys(&fib6_net_ops); out_kmem_cache_create: kmem_cache_destroy(fib6_node_kmem); goto out; } +int __init fib6_init_late(void) +{ + return __rtnl_register(PF_INET6, RTM_GETROUTE, NULL, inet6_dump_fib, + NULL); +} + +void fib6_cleanup_late(void) +{ + rtnl_unregister(PF_INET6, RTM_GETROUTE); +} + void fib6_gc_cleanup(void) { unregister_pernet_subsys(&fib6_net_ops); diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 999a982ad3fd..dc60bf585966 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -3018,10 +3018,14 @@ int __init ip6_route_init(void) if (ret) goto out_kmem_cache; - ret = register_pernet_subsys(&ip6_route_net_ops); + ret = fib6_init(); if (ret) goto out_dst_entries; + ret = register_pernet_subsys(&ip6_route_net_ops); + if (ret) + goto out_fib6_init; + ip6_dst_blackhole_ops.kmem_cachep = ip6_dst_ops_template.kmem_cachep; /* Registering of the loopback is done before this portion of code, @@ -3035,13 +3039,13 @@ int __init ip6_route_init(void) init_net.ipv6.ip6_blk_hole_entry->dst.dev = init_net.loopback_dev; init_net.ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev); #endif - ret = fib6_init(); + ret = fib6_init_late(); if (ret) goto out_register_subsys; ret = xfrm6_init(); if (ret) - goto out_fib6_init; + goto out_fib6_init_late; ret = fib6_rules_init(); if (ret) @@ -3064,10 +3068,12 @@ fib6_rules_init: fib6_rules_cleanup(); xfrm6_init: xfrm6_fini(); -out_fib6_init: - fib6_gc_cleanup(); +out_fib6_init_late: + fib6_cleanup_late(); out_register_subsys: unregister_pernet_subsys(&ip6_route_net_ops); +out_fib6_init: + fib6_gc_cleanup(); out_dst_entries: dst_entries_destroy(&ip6_dst_blackhole_ops); out_kmem_cache: -- cgit v1.2.3-59-g8ed1b From f961f72836eb6c0fd76201f6f6b2fafff93c4cea Mon Sep 17 00:00:00 2001 From: Jan Kiszka Date: Fri, 15 Jun 2012 07:56:20 -0600 Subject: KVM: Fix PCI header check on device assignment The masking was wrong (must have been 0x7f), and there is no need to re-read the value as pci_setup_device already does this for us. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43339 Signed-off-by: Jan Kiszka Acked-by: Alex Williamson Signed-off-by: Marcelo Tosatti --- virt/kvm/assigned-dev.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/virt/kvm/assigned-dev.c b/virt/kvm/assigned-dev.c index 01f572c10c71..b1e091ae2f37 100644 --- a/virt/kvm/assigned-dev.c +++ b/virt/kvm/assigned-dev.c @@ -635,7 +635,6 @@ static int kvm_vm_ioctl_assign_device(struct kvm *kvm, int r = 0, idx; struct kvm_assigned_dev_kernel *match; struct pci_dev *dev; - u8 header_type; if (!(assigned_dev->flags & KVM_DEV_ASSIGN_ENABLE_IOMMU)) return -EINVAL; @@ -668,8 +667,7 @@ static int kvm_vm_ioctl_assign_device(struct kvm *kvm, } /* Don't allow bridges to be assigned */ - pci_read_config_byte(dev, PCI_HEADER_TYPE, &header_type); - if ((header_type & PCI_HEADER_TYPE) != PCI_HEADER_TYPE_NORMAL) { + if (dev->hdr_type != PCI_HEADER_TYPE_NORMAL) { r = -EPERM; goto out_put; } -- cgit v1.2.3-59-g8ed1b From e8803b6c387129059e04d9e14d49efda250a7361 Mon Sep 17 00:00:00 2001 From: "David S. Miller" Date: Sat, 16 Jun 2012 01:12:19 -0700 Subject: Revert "ipv6: Prevent access to uninitialized fib_table_hash via /proc/net/ipv6_route" This reverts commit 2a0c451ade8e1783c5d453948289e4a978d417c9. It causes crashes, because now ip6_null_entry is used before it is initialized. Signed-off-by: David S. Miller --- include/net/ip6_fib.h | 2 -- net/ipv6/ip6_fib.c | 18 +++++++----------- net/ipv6/route.c | 16 +++++----------- 3 files changed, 12 insertions(+), 24 deletions(-) diff --git a/include/net/ip6_fib.h b/include/net/ip6_fib.h index 209af13b0336..0ae759a6c76e 100644 --- a/include/net/ip6_fib.h +++ b/include/net/ip6_fib.h @@ -271,8 +271,6 @@ extern void fib6_run_gc(unsigned long expires, extern void fib6_gc_cleanup(void); extern int fib6_init(void); -extern int fib6_init_late(void); -extern void fib6_cleanup_late(void); #ifdef CONFIG_IPV6_MULTIPLE_TABLES extern int fib6_rules_init(void); diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index fbd4afff05fa..74c21b924a79 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -1692,25 +1692,21 @@ int __init fib6_init(void) ret = register_pernet_subsys(&fib6_net_ops); if (ret) goto out_kmem_cache_create; + + ret = __rtnl_register(PF_INET6, RTM_GETROUTE, NULL, inet6_dump_fib, + NULL); + if (ret) + goto out_unregister_subsys; out: return ret; +out_unregister_subsys: + unregister_pernet_subsys(&fib6_net_ops); out_kmem_cache_create: kmem_cache_destroy(fib6_node_kmem); goto out; } -int __init fib6_init_late(void) -{ - return __rtnl_register(PF_INET6, RTM_GETROUTE, NULL, inet6_dump_fib, - NULL); -} - -void fib6_cleanup_late(void) -{ - rtnl_unregister(PF_INET6, RTM_GETROUTE); -} - void fib6_gc_cleanup(void) { unregister_pernet_subsys(&fib6_net_ops); diff --git a/net/ipv6/route.c b/net/ipv6/route.c index dc60bf585966..999a982ad3fd 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -3018,13 +3018,9 @@ int __init ip6_route_init(void) if (ret) goto out_kmem_cache; - ret = fib6_init(); - if (ret) - goto out_dst_entries; - ret = register_pernet_subsys(&ip6_route_net_ops); if (ret) - goto out_fib6_init; + goto out_dst_entries; ip6_dst_blackhole_ops.kmem_cachep = ip6_dst_ops_template.kmem_cachep; @@ -3039,13 +3035,13 @@ int __init ip6_route_init(void) init_net.ipv6.ip6_blk_hole_entry->dst.dev = init_net.loopback_dev; init_net.ipv6.ip6_blk_hole_entry->rt6i_idev = in6_dev_get(init_net.loopback_dev); #endif - ret = fib6_init_late(); + ret = fib6_init(); if (ret) goto out_register_subsys; ret = xfrm6_init(); if (ret) - goto out_fib6_init_late; + goto out_fib6_init; ret = fib6_rules_init(); if (ret) @@ -3068,12 +3064,10 @@ fib6_rules_init: fib6_rules_cleanup(); xfrm6_init: xfrm6_fini(); -out_fib6_init_late: - fib6_cleanup_late(); -out_register_subsys: - unregister_pernet_subsys(&ip6_route_net_ops); out_fib6_init: fib6_gc_cleanup(); +out_register_subsys: + unregister_pernet_subsys(&ip6_route_net_ops); out_dst_entries: dst_entries_destroy(&ip6_dst_blackhole_ops); out_kmem_cache: -- cgit v1.2.3-59-g8ed1b From e5a867a51d9b009f90d5dca6a320608e4e8a37ec Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Sat, 16 Jun 2012 07:41:28 +0100 Subject: drm/udl: only bind to the video devices on the hub. This is ported from udlfb. Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=832188 Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/udl/udl_drv.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c index 4d02c46a9420..6e52069894b3 100644 --- a/drivers/gpu/drm/udl/udl_drv.c +++ b/drivers/gpu/drm/udl/udl_drv.c @@ -13,8 +13,21 @@ static struct drm_driver driver; +/* + * There are many DisplayLink-based graphics products, all with unique PIDs. + * So we match on DisplayLink's VID + Vendor-Defined Interface Class (0xff) + * We also require a match on SubClass (0x00) and Protocol (0x00), + * which is compatible with all known USB 2.0 era graphics chips and firmware, + * but allows DisplayLink to increment those for any future incompatible chips + */ static struct usb_device_id id_table[] = { - {.idVendor = 0x17e9, .match_flags = USB_DEVICE_ID_MATCH_VENDOR,}, + {.idVendor = 0x17e9, .bInterfaceClass = 0xff, + .bInterfaceSubClass = 0x00, + .bInterfaceProtocol = 0x00, + .match_flags = USB_DEVICE_ID_MATCH_VENDOR | + USB_DEVICE_ID_MATCH_INT_CLASS | + USB_DEVICE_ID_MATCH_INT_SUBCLASS | + USB_DEVICE_ID_MATCH_INT_PROTOCOL,}, {}, }; MODULE_DEVICE_TABLE(usb, id_table); -- cgit v1.2.3-59-g8ed1b From f8fee8f5acb5c3f82e02f2ae139a6f1e7b4eb583 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 15 Jun 2012 12:46:17 -0700 Subject: vga_switcheroo.h: fix pci_dev warning Fix warnings on some architectures/configs (not on x86): include/linux/vga_switcheroo.h:28:30: warning: 'struct pci_dev' declared inside parameter list [enabled by default] include/linux/vga_switcheroo.h:28:30: warning: its scope is only this definition or declaration, which is probably not what you want [enabled by default] Signed-off-by: Randy Dunlap Cc: Takashi Iwai Reported-by: Geert Uytterhoeven Signed-off-by: Dave Airlie --- include/linux/vga_switcheroo.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/linux/vga_switcheroo.h b/include/linux/vga_switcheroo.h index 60da41fe9dc2..d844b7790ea6 100644 --- a/include/linux/vga_switcheroo.h +++ b/include/linux/vga_switcheroo.h @@ -9,6 +9,8 @@ #include +struct pci_dev; + enum vga_switcheroo_state { VGA_SWITCHEROO_OFF, VGA_SWITCHEROO_ON, -- cgit v1.2.3-59-g8ed1b From 0ec0612a80f957000999c3f7b31a84e3558c719d Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 14 Jun 2012 15:54:57 -0400 Subject: drm/radeon: fix regression in dynpm due to multi-ring rework MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Not all asics have all rings, so make sure the ring is ready before attempting to check it in the dynpm work handler. Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=43367 Signed-off-by: Alex Deucher Reviewed-by: Jerome Glisse Reviewed-by: Christian König Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_pm.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index 08825548ee69..5b37e283ec38 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -801,9 +801,13 @@ static void radeon_dynpm_idle_work_handler(struct work_struct *work) int i; for (i = 0; i < RADEON_NUM_RINGS; ++i) { - not_processed += radeon_fence_count_emitted(rdev, i); - if (not_processed >= 3) - break; + struct radeon_ring *ring = &rdev->ring[i]; + + if (ring->ready) { + not_processed += radeon_fence_count_emitted(rdev, i); + if (not_processed >= 3) + break; + } } if (not_processed >= 3) { /* should upclock */ -- cgit v1.2.3-59-g8ed1b From 489797d510dfbce15120492d7ef6f956928b99f2 Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Tue, 12 Jun 2012 16:10:39 +0100 Subject: drm/radeon/prime: reserve/unreserve around pin I finally got to test this code a bit more and hit the ttm no reserved assert, so add the reservations around the pinning. Reviewed-by: Alex Deucher Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_prime.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_prime.c b/drivers/gpu/drm/radeon/radeon_prime.c index 8ddab4c76710..6bef46ace831 100644 --- a/drivers/gpu/drm/radeon/radeon_prime.c +++ b/drivers/gpu/drm/radeon/radeon_prime.c @@ -169,11 +169,17 @@ struct dma_buf *radeon_gem_prime_export(struct drm_device *dev, struct radeon_bo *bo = gem_to_radeon_bo(obj); int ret = 0; + ret = radeon_bo_reserve(bo, false); + if (unlikely(ret != 0)) + return ERR_PTR(ret); + /* pin buffer into GTT */ ret = radeon_bo_pin(bo, RADEON_GEM_DOMAIN_GTT, NULL); - if (ret) + if (ret) { + radeon_bo_unreserve(bo); return ERR_PTR(ret); - + } + radeon_bo_unreserve(bo); return dma_buf_export(bo, &radeon_dmabuf_ops, obj->size, flags); } -- cgit v1.2.3-59-g8ed1b From ce020ea53264f1460ae619cfc12f968dbd0b8974 Mon Sep 17 00:00:00 2001 From: Márton Németh Date: Sun, 10 Jun 2012 23:39:55 +0200 Subject: drm via: initialize object_idr MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The field obejct_idr of struct drm_via_private was introduced with the commit http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=77ee8f3825054f23b17e9c8f728f061defd86cdc . In that patch idr_init(&dev->object_name_idr) was called instead of idr_init(&dev_priv->object_idr) by mistake, leaving the dev_priv->object_idr uninitialized. To be more exact, the object_idr buffer is filled with zeros because of kzalloc(), but the dev_priv->object_idr.lock spinlock can cause system freeze at lib/idr.c:move_to_free_list() when spin_lock_irqsave() is called on this spinlock. The patch was tested on Clevo D4J, model D410J laptop, on the following hardware, without AGP kernel module loaded: # lspci -s 01:00.0 -n 01:00.0 0300: 1106:3108 (rev 01) # lspci -s 01:00.0 -v 01:00.0 VGA compatible controller: VIA Technologies, Inc. K8M800/K8N800/K8N800A [S3 UniChrome Pro] (rev 01) (prog-if 00 [VGA controller]) Subsystem: CLEVO/KAPOK Computer Device 4702 Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 16 Memory at f0000000 (32-bit, prefetchable) [size=64M] Memory at d1000000 (32-bit, non-prefetchable) [size=16M] Expansion ROM at [disabled] Capabilities: [60] Power Management version 2 Capabilities: [70] AGP version 3.0 Signed-off-by: Márton Németh Reviewed-by: Daniel Vetter Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/via/via_map.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/via/via_map.c b/drivers/gpu/drm/via/via_map.c index 1f182254e81e..c126182ac07e 100644 --- a/drivers/gpu/drm/via/via_map.c +++ b/drivers/gpu/drm/via/via_map.c @@ -100,12 +100,11 @@ int via_driver_load(struct drm_device *dev, unsigned long chipset) if (dev_priv == NULL) return -ENOMEM; + idr_init(&dev_priv->object_idr); dev->dev_private = (void *)dev_priv; dev_priv->chipset = chipset; - idr_init(&dev->object_name_idr); - pci_set_master(dev->pdev); ret = drm_vblank_init(dev, 1); -- cgit v1.2.3-59-g8ed1b From 648ccc7d35e3416fdc739d2e520e85de3125361b Mon Sep 17 00:00:00 2001 From: Márton Németh Date: Mon, 11 Jun 2012 19:09:25 +0200 Subject: drm sis: initialize object_idr MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The filed object_idr of struct drm_sis_private was introduced with commit http://git.kernel.org/?p=linux/kernel/git/torvalds/linux.git;a=commitdiff;h=6de8a748881f1cd9d795454da2b6db616d5ca3d7 . The idr_init(&dev->object_name_idr) is called instead of idr_init(&dev_priv->object_idr) by mistake, leaving object_idr uninitialized. Correct this. This patch was not tested because of lack of hardware. Signed-off-by: Márton Németh Reviewed-by: Daniel Vetter Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/sis/sis_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/sis/sis_drv.c b/drivers/gpu/drm/sis/sis_drv.c index 30d98d14b5c5..dd14cd1a0033 100644 --- a/drivers/gpu/drm/sis/sis_drv.c +++ b/drivers/gpu/drm/sis/sis_drv.c @@ -47,9 +47,9 @@ static int sis_driver_load(struct drm_device *dev, unsigned long chipset) if (dev_priv == NULL) return -ENOMEM; + idr_init(&dev_priv->object_idr); dev->dev_private = (void *)dev_priv; dev_priv->chipset = chipset; - idr_init(&dev->object_name_idr); return 0; } -- cgit v1.2.3-59-g8ed1b From 6b53a0507b6e728c53f2fc60912a8511f151e5d8 Mon Sep 17 00:00:00 2001 From: Rafał Miłecki Date: Mon, 11 Jun 2012 12:34:01 +0200 Subject: drm/radeon: enable HDMI on DCE5 (AKA NI excluding Aruba) MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit After recent changes HDMI code is ready to be enabled on DCE5. This patch just changes conditions to execute already present code on DCE5. Signed-off-by: Rafał Miłecki Reviewed-by: Alex Deucher Tested-by: Christian König Tested-by: Andre Heider Tested-by: Zoltán Böszörményi Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/atombios_encoders.c | 4 +++- drivers/gpu/drm/radeon/evergreen_hdmi.c | 3 --- drivers/gpu/drm/radeon/ni.c | 5 +++++ drivers/gpu/drm/radeon/r600_audio.c | 2 +- drivers/gpu/drm/radeon/r600_hdmi.c | 7 ++----- 5 files changed, 11 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c index e7b1ec5ae8c6..486ccdf4aacd 100644 --- a/drivers/gpu/drm/radeon/atombios_encoders.c +++ b/drivers/gpu/drm/radeon/atombios_encoders.c @@ -1926,7 +1926,9 @@ radeon_atom_encoder_mode_set(struct drm_encoder *encoder, if (atombios_get_encoder_mode(encoder) == ATOM_ENCODER_MODE_HDMI) { r600_hdmi_enable(encoder); - if (ASIC_IS_DCE4(rdev)) + if (ASIC_IS_DCE6(rdev)) + ; /* TODO (use pointers instead of if-s?) */ + else if (ASIC_IS_DCE4(rdev)) evergreen_hdmi_setmode(encoder, adjusted_mode); else r600_hdmi_setmode(encoder, adjusted_mode); diff --git a/drivers/gpu/drm/radeon/evergreen_hdmi.c b/drivers/gpu/drm/radeon/evergreen_hdmi.c index a51f880985f8..65c54160028b 100644 --- a/drivers/gpu/drm/radeon/evergreen_hdmi.c +++ b/drivers/gpu/drm/radeon/evergreen_hdmi.c @@ -156,9 +156,6 @@ void evergreen_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; uint32_t offset; - if (ASIC_IS_DCE5(rdev)) - return; - /* Silent, r600_hdmi_enable will raise WARN for us */ if (!dig->afmt->enabled) return; diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c index 3186522a4458..b7bf18e40215 100644 --- a/drivers/gpu/drm/radeon/ni.c +++ b/drivers/gpu/drm/radeon/ni.c @@ -1303,6 +1303,10 @@ static int cayman_startup(struct radeon_device *rdev) if (r) return r; + r = r600_audio_init(rdev); + if (r) + return r; + return 0; } @@ -1329,6 +1333,7 @@ int cayman_resume(struct radeon_device *rdev) int cayman_suspend(struct radeon_device *rdev) { + r600_audio_fini(rdev); /* FIXME: we should wait for ring to be empty */ radeon_ib_pool_suspend(rdev); radeon_vm_manager_suspend(rdev); diff --git a/drivers/gpu/drm/radeon/r600_audio.c b/drivers/gpu/drm/radeon/r600_audio.c index 7479a5c503e4..79b55916cf90 100644 --- a/drivers/gpu/drm/radeon/r600_audio.c +++ b/drivers/gpu/drm/radeon/r600_audio.c @@ -57,7 +57,7 @@ static bool radeon_dig_encoder(struct drm_encoder *encoder) */ static int r600_audio_chipset_supported(struct radeon_device *rdev) { - return (rdev->family >= CHIP_R600 && !ASIC_IS_DCE5(rdev)) + return (rdev->family >= CHIP_R600 && !ASIC_IS_DCE6(rdev)) || rdev->family == CHIP_RS600 || rdev->family == CHIP_RS690 || rdev->family == CHIP_RS740; diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c index 969c27529dfe..82a0a4c919c0 100644 --- a/drivers/gpu/drm/radeon/r600_hdmi.c +++ b/drivers/gpu/drm/radeon/r600_hdmi.c @@ -322,9 +322,6 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; uint32_t offset; - if (ASIC_IS_DCE5(rdev)) - return; - /* Silent, r600_hdmi_enable will raise WARN for us */ if (!dig->afmt->enabled) return; @@ -483,7 +480,7 @@ void r600_hdmi_enable(struct drm_encoder *encoder) uint32_t offset; u32 hdmi; - if (ASIC_IS_DCE5(rdev)) + if (ASIC_IS_DCE6(rdev)) return; /* Silent, r600_hdmi_enable will raise WARN for us */ @@ -543,7 +540,7 @@ void r600_hdmi_disable(struct drm_encoder *encoder) struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv; uint32_t offset; - if (ASIC_IS_DCE5(rdev)) + if (ASIC_IS_DCE6(rdev)) return; /* Called for ATOM_ENCODER_MODE_HDMI only */ -- cgit v1.2.3-59-g8ed1b From b866d1334ba2d544bc575d75357dea6bdcdc7f46 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 14 Jun 2012 22:06:36 +0200 Subject: drm/radeon: add some additional 6xx/7xx/EG register init - SMX_SAR_CTL0 needs to be programmed correctly to prevent problems with memory exports in certain cases. - VC_ENHANCE needs to be initialized on 6xx/7xx. Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/evergreen.c | 3 +++ drivers/gpu/drm/radeon/evergreend.h | 1 + drivers/gpu/drm/radeon/r600.c | 1 + drivers/gpu/drm/radeon/r600d.h | 1 + drivers/gpu/drm/radeon/rv770.c | 5 ++++- drivers/gpu/drm/radeon/rv770d.h | 3 +++ 6 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c index 01550d05e273..7fb3d2e0434c 100644 --- a/drivers/gpu/drm/radeon/evergreen.c +++ b/drivers/gpu/drm/radeon/evergreen.c @@ -1932,6 +1932,9 @@ static void evergreen_gpu_init(struct radeon_device *rdev) smx_dc_ctl0 |= NUMBER_OF_SETS(rdev->config.evergreen.sx_num_of_sets); WREG32(SMX_DC_CTL0, smx_dc_ctl0); + if (rdev->family <= CHIP_SUMO2) + WREG32(SMX_SAR_CTL0, 0x00010000); + WREG32(SX_EXPORT_BUFFER_SIZES, (COLOR_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_size / 4) - 1) | POSITION_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_pos_size / 4) - 1) | SMX_BUFFER_SIZE((rdev->config.evergreen.sx_max_export_smx_size / 4) - 1))); diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h index 2773039b4902..b50b15c70498 100644 --- a/drivers/gpu/drm/radeon/evergreend.h +++ b/drivers/gpu/drm/radeon/evergreend.h @@ -503,6 +503,7 @@ #define SCRATCH_UMSK 0x8540 #define SCRATCH_ADDR 0x8544 +#define SMX_SAR_CTL0 0xA008 #define SMX_DC_CTL0 0xA020 #define USE_HASH_FUNCTION (1 << 0) #define NUMBER_OF_SETS(x) ((x) << 1) diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c index f30dc95f83b1..bff627293812 100644 --- a/drivers/gpu/drm/radeon/r600.c +++ b/drivers/gpu/drm/radeon/r600.c @@ -1839,6 +1839,7 @@ void r600_gpu_init(struct radeon_device *rdev) WREG32(PA_CL_ENHANCE, (CLIP_VTX_REORDER_ENA | NUM_CLIP_SEQ(3))); WREG32(PA_SC_ENHANCE, FORCE_EOV_MAX_CLK_CNT(4095)); + WREG32(VC_ENHANCE, 0); } diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h index a0dbf1fe6a40..c6857e8d76f2 100644 --- a/drivers/gpu/drm/radeon/r600d.h +++ b/drivers/gpu/drm/radeon/r600d.h @@ -485,6 +485,7 @@ #define TC_L2_SIZE(x) ((x)<<5) #define L2_DISABLE_LATE_HIT (1<<9) +#define VC_ENHANCE 0x9714 #define VGT_CACHE_INVALIDATION 0x88C4 #define CACHE_INVALIDATION(x) ((x)<<0) diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c index 4ad0281fdc37..b4f51c569c36 100644 --- a/drivers/gpu/drm/radeon/rv770.c +++ b/drivers/gpu/drm/radeon/rv770.c @@ -616,6 +616,9 @@ static void rv770_gpu_init(struct radeon_device *rdev) ACK_FLUSH_CTL(3) | SYNC_FLUSH_CTL)); + if (rdev->family != CHIP_RV770) + WREG32(SMX_SAR_CTL0, 0x00003f3f); + db_debug3 = RREG32(DB_DEBUG3); db_debug3 &= ~DB_CLK_OFF_DELAY(0x1f); switch (rdev->family) { @@ -792,7 +795,7 @@ static void rv770_gpu_init(struct radeon_device *rdev) WREG32(PA_CL_ENHANCE, (CLIP_VTX_REORDER_ENA | NUM_CLIP_SEQ(3))); - + WREG32(VC_ENHANCE, 0); } void r700_vram_gtt_location(struct radeon_device *rdev, struct radeon_mc *mc) diff --git a/drivers/gpu/drm/radeon/rv770d.h b/drivers/gpu/drm/radeon/rv770d.h index fdc089896011..b0adfc595d75 100644 --- a/drivers/gpu/drm/radeon/rv770d.h +++ b/drivers/gpu/drm/radeon/rv770d.h @@ -211,6 +211,7 @@ #define SCRATCH_UMSK 0x8540 #define SCRATCH_ADDR 0x8544 +#define SMX_SAR_CTL0 0xA008 #define SMX_DC_CTL0 0xA020 #define USE_HASH_FUNCTION (1 << 0) #define CACHE_DEPTH(x) ((x) << 1) @@ -310,6 +311,8 @@ #define TCP_CNTL 0x9610 #define TCP_CHAN_STEER 0x9614 +#define VC_ENHANCE 0x9714 + #define VGT_CACHE_INVALIDATION 0x88C4 #define CACHE_INVALIDATION(x) ((x)<<0) #define VC_ONLY 0 -- cgit v1.2.3-59-g8ed1b From 7c77bf2a1a8bf67d580a3b189b37fded0a13ab78 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 14 Jun 2012 22:06:37 +0200 Subject: drm/radeon: add support for STRMOUT_BASE_UPDATE on 7xx MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Required for streamout. Bump drm minor. Marek v2: fix pkt->count check Signed-off-by: Alex Deucher Reviewed-by: Michel Dänzer Signed-off-by: Marek Olšák Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/r600_cs.c | 42 +++++++++++++++++++++++++++++++++++++ drivers/gpu/drm/radeon/r600d.h | 1 + drivers/gpu/drm/radeon/radeon_drv.c | 3 ++- 3 files changed, 45 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c index 0133f5f09bd6..ca87f7afaf23 100644 --- a/drivers/gpu/drm/radeon/r600_cs.c +++ b/drivers/gpu/drm/radeon/r600_cs.c @@ -2079,6 +2079,48 @@ static int r600_packet3_check(struct radeon_cs_parser *p, return -EINVAL; } break; + case PACKET3_STRMOUT_BASE_UPDATE: + if (p->family < CHIP_RV770) { + DRM_ERROR("STRMOUT_BASE_UPDATE only supported on 7xx\n"); + return -EINVAL; + } + if (pkt->count != 1) { + DRM_ERROR("bad STRMOUT_BASE_UPDATE packet count\n"); + return -EINVAL; + } + if (idx_value > 3) { + DRM_ERROR("bad STRMOUT_BASE_UPDATE index\n"); + return -EINVAL; + } + { + u64 offset; + + r = r600_cs_packet_next_reloc(p, &reloc); + if (r) { + DRM_ERROR("bad STRMOUT_BASE_UPDATE reloc\n"); + return -EINVAL; + } + + if (reloc->robj != track->vgt_strmout_bo[idx_value]) { + DRM_ERROR("bad STRMOUT_BASE_UPDATE, bo does not match\n"); + return -EINVAL; + } + + offset = radeon_get_ib_value(p, idx+1) << 8; + if (offset != track->vgt_strmout_bo_offset[idx_value]) { + DRM_ERROR("bad STRMOUT_BASE_UPDATE, bo offset does not match: 0x%llx, 0x%x\n", + offset, track->vgt_strmout_bo_offset[idx_value]); + return -EINVAL; + } + + if ((offset + 4) > radeon_bo_size(reloc->robj)) { + DRM_ERROR("bad STRMOUT_BASE_UPDATE bo too small: 0x%llx, 0x%lx\n", + offset + 4, radeon_bo_size(reloc->robj)); + return -EINVAL; + } + ib[idx+1] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff); + } + break; case PACKET3_SURFACE_BASE_UPDATE: if (p->family >= CHIP_RV770 || p->family == CHIP_R600) { DRM_ERROR("bad SURFACE_BASE_UPDATE\n"); diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h index c6857e8d76f2..025fd5b6c08c 100644 --- a/drivers/gpu/drm/radeon/r600d.h +++ b/drivers/gpu/drm/radeon/r600d.h @@ -1164,6 +1164,7 @@ #define PACKET3_SET_CTL_CONST 0x6F #define PACKET3_SET_CTL_CONST_OFFSET 0x0003cff0 #define PACKET3_SET_CTL_CONST_END 0x0003e200 +#define PACKET3_STRMOUT_BASE_UPDATE 0x72 /* r7xx */ #define PACKET3_SURFACE_BASE_UPDATE 0x73 diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c index 03e5f5df40f1..2c4d53fd20c5 100644 --- a/drivers/gpu/drm/radeon/radeon_drv.c +++ b/drivers/gpu/drm/radeon/radeon_drv.c @@ -58,9 +58,10 @@ * 2.14.0 - add evergreen tiling informations * 2.15.0 - add max_pipes query * 2.16.0 - fix evergreen 2D tiled surface calculation + * 2.17.0 - add STRMOUT_BASE_UPDATE for r7xx */ #define KMS_DRIVER_MAJOR 2 -#define KMS_DRIVER_MINOR 16 +#define KMS_DRIVER_MINOR 17 #define KMS_DRIVER_PATCHLEVEL 0 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags); int radeon_driver_unload_kms(struct drm_device *dev); -- cgit v1.2.3-59-g8ed1b From b708a1d5ea7880b399dbd45cacafff6ae8d73171 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Mon, 11 Jun 2012 14:39:56 -0400 Subject: drm/i915: don't enumerate HDMID if an eDP panel is already active on the port This prevents the HDMI detect functions from poking at an eDP connected panel, which can lead to trouble. [danvet: Note that we have some other reports of DP vs. HDMI fighting, but the general case is a much bigger fish to fry.] References: https://bugs.freedesktop.org/show_bug.cgi?id=42278 Signed-off-by: Jesse Barnes Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index e0aa064def31..a7c727d0c105 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6558,7 +6558,7 @@ static void intel_setup_outputs(struct drm_device *dev) if (I915_READ(HDMIC) & PORT_DETECTED) intel_hdmi_init(dev, HDMIC); - if (I915_READ(HDMID) & PORT_DETECTED) + if (!dpd_is_edp && I915_READ(HDMID) & PORT_DETECTED) intel_hdmi_init(dev, HDMID); if (I915_READ(PCH_DP_C) & DP_DETECTED) -- cgit v1.2.3-59-g8ed1b From 351cfc34db8decb0c5cc1aac7cf1780a0e45c8b1 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Tue, 12 Jun 2012 13:20:47 +0200 Subject: drm/i915: eDP aux needs vdd The new oui probe has been missing these. This issue has been introduce in commit 0d198328538276c4459ef5de081e68ae60e6c4c2 Author: Adam Jackson Date: Mon May 14 16:05:47 2012 -0400 drm/i915/dp: Probe branch/sink OUIs v2: Do the eDP vdd dance of simply not probing the OUI on eDP panels as suggested by Chris Wilson. v3: Fix up the error path fail - I suck. Cc: Adam Jackson Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=50808 Reported-by: Linus Torvalds Bugreport: http://permalink.gmane.org/gmane.comp.video.dri.devel/69695 Tested-by: Yang Guang Reviewed-by: Jesse Barnes Signed-Off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_dp.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 296cfc201a81..c574ff0189de 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -1973,6 +1973,8 @@ intel_dp_probe_oui(struct intel_dp *intel_dp) if (!(intel_dp->dpcd[DP_DOWN_STREAM_PORT_COUNT] & DP_OUI_SUPPORT)) return; + ironlake_edp_panel_vdd_on(intel_dp); + if (intel_dp_aux_native_read_retry(intel_dp, DP_SINK_OUI, buf, 3)) DRM_DEBUG_KMS("Sink OUI: %02hx%02hx%02hx\n", buf[0], buf[1], buf[2]); @@ -1980,6 +1982,8 @@ intel_dp_probe_oui(struct intel_dp *intel_dp) if (intel_dp_aux_native_read_retry(intel_dp, DP_BRANCH_OUI, buf, 3)) DRM_DEBUG_KMS("Branch OUI: %02hx%02hx%02hx\n", buf[0], buf[1], buf[2]); + + ironlake_edp_panel_vdd_off(intel_dp, false); } static bool -- cgit v1.2.3-59-g8ed1b From 6b4e0a93ff6e45714c72bdce193f719ed94810e3 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Thu, 14 Jun 2012 22:15:00 +0200 Subject: Revert "drm/i915/dp: Use auxch precharge value of 5 everywhere" This reverts commit 092945e11c5b84f66dd08f0b87fb729715d377bc. This commit prevents a DP screen from properly training the link. Oddly enough it works, once the machine has been warm-booted with an older kernel. According to DP docs this _should_ have been the right precharge time. Also, the commit that originally introduces this was just general snb DP enabling and didn't mention any specific reason for this special value. Whatever, trust the reporter that this makes things worse and let's just revert it. v2: Less spelling fail. Cc: Adam Jackson Cc: Jesse Barnes Reported-by: "Wouter M. Koolen" Buglink: https://lkml.org/lkml/2012/6/14/301 Cc: stable@vger.kernel.org (only for 3.4) Signed-Off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_dp.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index c574ff0189de..a4b3887575a1 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -371,7 +371,7 @@ intel_dp_aux_ch(struct intel_dp *intel_dp, int recv_bytes; uint32_t status; uint32_t aux_clock_divider; - int try, precharge = 5; + int try, precharge; intel_dp_check_edp(intel_dp); /* The clock divider is based off the hrawclk, @@ -391,6 +391,11 @@ intel_dp_aux_ch(struct intel_dp *intel_dp, else aux_clock_divider = intel_hrawclk(dev) / 2; + if (IS_GEN6(dev)) + precharge = 3; + else + precharge = 5; + /* Try to wait for any previous AUX channel activity */ for (try = 0; try < 3; try++) { status = I915_READ(ch_ctl); -- cgit v1.2.3-59-g8ed1b From d6f24d0fa6cdf3431a2fe3330a74bc6c5871f496 Mon Sep 17 00:00:00 2001 From: Jesse Barnes Date: Thu, 14 Jun 2012 15:28:33 -0400 Subject: drm/i915: cache the EDID for eDP panels They aren't going anywhere, and probing on DDC can cause the panel to blank briefly, so read them up front and cache them for later queries. v2: fix potential NULL derefs in intel_dp_get_edid_modes and intel_dp_get_edid (Jani) copy full EDID length, including extension blocks (Takashi) free EDID on teardown (Takashi) v3: malloc a new EDID buffer that's big enough for the memcpy (Chris) v4: change handling of NULL EDIDs, just preserve the NULL behavior across detects and mode list fetches rather than trying to re-fetch the EDID (Chris) v5: be glad that Chris is around to remind me to hit C-x C-s before committing. References: https://bugs.freedesktop.org/show_bug.cgi?id=46856 Signed-off-by: Jesse Barnes Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_dp.c | 49 ++++++++++++++++++++++++++++++++++++----- 1 file changed, 43 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index a4b3887575a1..c0449324143c 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -32,6 +32,7 @@ #include "drm.h" #include "drm_crtc.h" #include "drm_crtc_helper.h" +#include "drm_edid.h" #include "intel_drv.h" #include "i915_drm.h" #include "i915_drv.h" @@ -67,6 +68,8 @@ struct intel_dp { struct drm_display_mode *panel_fixed_mode; /* for eDP */ struct delayed_work panel_vdd_work; bool want_panel_vdd; + struct edid *edid; /* cached EDID for eDP */ + int edid_mode_count; }; /** @@ -2125,10 +2128,22 @@ intel_dp_get_edid(struct drm_connector *connector, struct i2c_adapter *adapter) { struct intel_dp *intel_dp = intel_attached_dp(connector); struct edid *edid; + int size; + + if (is_edp(intel_dp)) { + if (!intel_dp->edid) + return NULL; + + size = (intel_dp->edid->extensions + 1) * EDID_LENGTH; + edid = kmalloc(size, GFP_KERNEL); + if (!edid) + return NULL; + + memcpy(edid, intel_dp->edid, size); + return edid; + } - ironlake_edp_panel_vdd_on(intel_dp); edid = drm_get_edid(connector, adapter); - ironlake_edp_panel_vdd_off(intel_dp, false); return edid; } @@ -2138,9 +2153,17 @@ intel_dp_get_edid_modes(struct drm_connector *connector, struct i2c_adapter *ada struct intel_dp *intel_dp = intel_attached_dp(connector); int ret; - ironlake_edp_panel_vdd_on(intel_dp); + if (is_edp(intel_dp)) { + drm_mode_connector_update_edid_property(connector, + intel_dp->edid); + ret = drm_add_edid_modes(connector, intel_dp->edid); + drm_edid_to_eld(connector, + intel_dp->edid); + connector->display_info.raw_edid = NULL; + return intel_dp->edid_mode_count; + } + ret = intel_ddc_get_modes(connector, adapter); - ironlake_edp_panel_vdd_off(intel_dp, false); return ret; } @@ -2330,6 +2353,7 @@ static void intel_dp_encoder_destroy(struct drm_encoder *encoder) i2c_del_adapter(&intel_dp->adapter); drm_encoder_cleanup(encoder); if (is_edp(intel_dp)) { + kfree(intel_dp->edid); cancel_delayed_work_sync(&intel_dp->panel_vdd_work); ironlake_panel_vdd_off_sync(intel_dp); } @@ -2513,11 +2537,14 @@ intel_dp_init(struct drm_device *dev, int output_reg) break; } + intel_dp_i2c_init(intel_dp, intel_connector, name); + /* Cache some DPCD data in the eDP case */ if (is_edp(intel_dp)) { bool ret; struct edp_power_seq cur, vbt; u32 pp_on, pp_off, pp_div; + struct edid *edid; pp_on = I915_READ(PCH_PP_ON_DELAYS); pp_off = I915_READ(PCH_PP_OFF_DELAYS); @@ -2585,9 +2612,19 @@ intel_dp_init(struct drm_device *dev, int output_reg) intel_dp_destroy(&intel_connector->base); return; } - } - intel_dp_i2c_init(intel_dp, intel_connector, name); + ironlake_edp_panel_vdd_on(intel_dp); + edid = drm_get_edid(connector, &intel_dp->adapter); + if (edid) { + drm_mode_connector_update_edid_property(connector, + edid); + intel_dp->edid_mode_count = + drm_add_edid_modes(connector, edid); + drm_edid_to_eld(connector, edid); + intel_dp->edid = edid; + } + ironlake_edp_panel_vdd_off(intel_dp, false); + } intel_encoder->hot_plug = intel_dp_hot_plug; -- cgit v1.2.3-59-g8ed1b From 667d1b48bcb66b89776ebefbaf05b358bc5907ce Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 15 Jun 2012 16:49:58 +0100 Subject: ARM: 7425/1: extable: ensure fixup entries are 4-byte aligned Fixup entries in the kernel exception tables should be 4-byte aligned since we return directly to them when handling a faulting instruction in the kernel. This patch adds the missing align directives to the fixup entries. Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/include/asm/futex.h | 1 + arch/arm/kernel/entry-armv.S | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h index 7be54690aeec..e42cf597f6e6 100644 --- a/arch/arm/include/asm/futex.h +++ b/arch/arm/include/asm/futex.h @@ -19,6 +19,7 @@ " .long 1b, 4f, 2b, 4f\n" \ " .popsection\n" \ " .pushsection .fixup,\"ax\"\n" \ + " .align 2\n" \ "4: mov %0, " err_reg "\n" \ " b 3b\n" \ " .popsection" diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S index 437f0c426517..0d1851ca6eb9 100644 --- a/arch/arm/kernel/entry-armv.S +++ b/arch/arm/kernel/entry-armv.S @@ -495,6 +495,7 @@ ENDPROC(__und_usr) * The out of line fixup for the ldrt above. */ .pushsection .fixup, "ax" + .align 2 4: mov pc, r9 .popsection .pushsection __ex_table,"a" -- cgit v1.2.3-59-g8ed1b From 4a77a5a06ec66ed05199b301e7c25f42f979afdc Mon Sep 17 00:00:00 2001 From: Yuanhan Liu Date: Sat, 16 Jun 2012 21:21:51 +0800 Subject: printk: use mutex lock to stop syslog_seq from going wild Although syslog_seq and log_next_seq stuff are protected by logbuf_lock spin log, it's not enough. Say we have two processes A and B, and let syslog_seq = N, while log_next_seq = N + 1, and the two processes both come to syslog_print at almost the same time. And No matter which process get the spin lock first, it will increase syslog_seq by one, then release spin lock; thus later, another process increase syslog_seq by one again. In this case, syslog_seq is bigger than syslog_next_seq. And latter, it would make: wait_event_interruptiable(log_wait, syslog != log_next_seq) don't wait any more even there is no new write comes. Thus it introduce a infinite loop reading. I can easily see this kind of issue by the following steps: # cat /proc/kmsg # at meantime, I don't kill rsyslog # So they are the two processes. # xinit # I added drm.debug=6 in the kernel parameter line, # so that it will produce lots of message and let that # issue happen It's 100% reproducable on my side. And my disk will be filled up by /var/log/messages in a quite short time. So, introduce a mutex_lock to stop syslog_seq from going wild just like what devkmsg_read() does. It does fix this issue as expected. v2: use mutex_lock_interruptiable() instead (comments from Kay) Signed-off-by: Yuanhan Liu Reviewed-by: Fengguang Wu Acked-By: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- kernel/printk.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/kernel/printk.c b/kernel/printk.c index ceb4a2f775a1..572730bd8a5c 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -414,7 +414,9 @@ static ssize_t devkmsg_read(struct file *file, char __user *buf, if (!user) return -EBADF; - mutex_lock(&user->lock); + ret = mutex_lock_interruptible(&user->lock); + if (ret) + return ret; raw_spin_lock(&logbuf_lock); while (user->seq == log_next_seq) { if (file->f_flags & O_NONBLOCK) { @@ -976,6 +978,7 @@ int do_syslog(int type, char __user *buf, int len, bool from_file) { bool clear = false; static int saved_console_loglevel = -1; + static DEFINE_MUTEX(syslog_mutex); int error; error = check_syslog_permissions(type, from_file); @@ -1002,11 +1005,17 @@ int do_syslog(int type, char __user *buf, int len, bool from_file) error = -EFAULT; goto out; } + error = mutex_lock_interruptible(&syslog_mutex); + if (error) + goto out; error = wait_event_interruptible(log_wait, syslog_seq != log_next_seq); - if (error) + if (error) { + mutex_unlock(&syslog_mutex); goto out; + } error = syslog_print(buf, len); + mutex_unlock(&syslog_mutex); break; /* Read/clear last kernel messages */ case SYSLOG_ACTION_READ_CLEAR: -- cgit v1.2.3-59-g8ed1b From b56a39ac263e5b8cafedd551a49c2105e68b98c2 Mon Sep 17 00:00:00 2001 From: Yuanhan Liu Date: Sat, 16 Jun 2012 12:40:55 +0800 Subject: printk: return -EINVAL if the message len is bigger than the buf size Just like what devkmsg_read() does, return -EINVAL if the message len is bigger than the buf size, or it will trigger a segfault error. Acked-by: Kay Sievers Acked-by: Fengguang Wu Signed-off-by: Yuanhan Liu Signed-off-by: Greg Kroah-Hartman --- kernel/printk.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/kernel/printk.c b/kernel/printk.c index 572730bd8a5c..a2276b916769 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -880,7 +880,9 @@ static int syslog_print(char __user *buf, int size) syslog_seq++; raw_spin_unlock_irq(&logbuf_lock); - if (len > 0 && copy_to_user(buf, text, len)) + if (len > size) + len = -EINVAL; + else if (len > 0 && copy_to_user(buf, text, len)) len = -EFAULT; kfree(text); -- cgit v1.2.3-59-g8ed1b From 9b0f7e399238c61f28539daeb65d72a8d7f91966 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 11 Jun 2012 09:03:58 -0500 Subject: arm: versatile: fix and enable PCI I/O space With commit 4d5fc58dbe34b (ARM: remove bunch of now unused mach/io.h files), the I/O space setup was completely broken on versatile. This patch fixes that and prepares for further I/O space clean-up. I/O space handling on the versatile platform is currently broken in multiple ways. Most importantly, the ports do not get mapped into the virtual address space at all. Also, there is some amount of confusion between PCI I/O space and other statically mapped MMIO registers in the platform code: * The __io_address() macro that is used to access the platform register maps to the same __io macro that gets used for I/O space. * The IO_SPACE_LIMIT is set to a value that is much larger than the total available space. * The I/O resource of the PCI bus is set to the physical address of the mapping, which is way outside of the actual I/O space limit as well as the address range that gets decoded by traditional PCI cards. * No attempt is made to stay outside of the ISA port range that some device drivers try access. * No resource gets requested as a child of ioport_resource, but an IORESOURCE_IO type mapping gets requested as a child of iomem_resource. This patch attempts to correct all of the above. This makes it possible to use virtio-pci based virtual devices as well as actual PCI cards including those with legacy ISA port ranges like VGA. Some of the issues seem to be duplicated on other platforms. Signed-off-by: Arnd Bergmann [rob: update to 3.5-rc2 and io.h cleanup related changes] Signed-off-by: Rob Herring Tested-by: Robert Schwebel Signed-off-by: Olof Johansson --- arch/arm/Kconfig | 1 + arch/arm/mach-versatile/core.c | 19 +++-------------- arch/arm/mach-versatile/include/mach/hardware.h | 3 ++- arch/arm/mach-versatile/include/mach/io.h | 27 +++++++++++++++++++++++++ arch/arm/mach-versatile/pci.c | 18 +++++++++++++++-- 5 files changed, 49 insertions(+), 19 deletions(-) create mode 100644 arch/arm/mach-versatile/include/mach/io.h diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index b649c5904a4f..567b4323c9e6 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -294,6 +294,7 @@ config ARCH_VERSATILE select ICST select GENERIC_CLOCKEVENTS select ARCH_WANT_OPTIONAL_GPIOLIB + select NEED_MACH_IO_H if PCI select PLAT_VERSATILE select PLAT_VERSATILE_CLCD select PLAT_VERSATILE_FPGA_IRQ diff --git a/arch/arm/mach-versatile/core.c b/arch/arm/mach-versatile/core.c index cf4687ee2a7b..cd8ea3588f93 100644 --- a/arch/arm/mach-versatile/core.c +++ b/arch/arm/mach-versatile/core.c @@ -169,26 +169,13 @@ static struct map_desc versatile_io_desc[] __initdata = { .pfn = __phys_to_pfn(VERSATILE_PCI_CFG_BASE), .length = VERSATILE_PCI_CFG_BASE_SIZE, .type = MT_DEVICE - }, -#if 0 - { - .virtual = VERSATILE_PCI_VIRT_MEM_BASE0, - .pfn = __phys_to_pfn(VERSATILE_PCI_MEM_BASE0), - .length = SZ_16M, - .type = MT_DEVICE }, { - .virtual = VERSATILE_PCI_VIRT_MEM_BASE1, - .pfn = __phys_to_pfn(VERSATILE_PCI_MEM_BASE1), - .length = SZ_16M, - .type = MT_DEVICE - }, { - .virtual = VERSATILE_PCI_VIRT_MEM_BASE2, - .pfn = __phys_to_pfn(VERSATILE_PCI_MEM_BASE2), - .length = SZ_16M, + .virtual = (unsigned long)VERSATILE_PCI_VIRT_MEM_BASE0, + .pfn = __phys_to_pfn(VERSATILE_PCI_MEM_BASE0), + .length = IO_SPACE_LIMIT, .type = MT_DEVICE }, #endif -#endif }; void __init versatile_map_io(void) diff --git a/arch/arm/mach-versatile/include/mach/hardware.h b/arch/arm/mach-versatile/include/mach/hardware.h index 4d4973dd8fba..408e58da46c6 100644 --- a/arch/arm/mach-versatile/include/mach/hardware.h +++ b/arch/arm/mach-versatile/include/mach/hardware.h @@ -29,8 +29,9 @@ */ #define VERSATILE_PCI_VIRT_BASE (void __iomem *)0xe8000000ul #define VERSATILE_PCI_CFG_VIRT_BASE (void __iomem *)0xe9000000ul +#define VERSATILE_PCI_VIRT_MEM_BASE0 (void __iomem *)PCIO_BASE -/* macro to get at IO space when running virtually */ +/* macro to get at MMIO space when running virtually */ #define IO_ADDRESS(x) (((x) & 0x0fffffff) + (((x) >> 4) & 0x0f000000) + 0xf0000000) #define __io_address(n) ((void __iomem __force *)IO_ADDRESS(n)) diff --git a/arch/arm/mach-versatile/include/mach/io.h b/arch/arm/mach-versatile/include/mach/io.h new file mode 100644 index 000000000000..0406513be7d8 --- /dev/null +++ b/arch/arm/mach-versatile/include/mach/io.h @@ -0,0 +1,27 @@ +/* + * arch/arm/mach-versatile/include/mach/io.h + * + * Copyright (C) 2003 ARM Limited + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ +#ifndef __ASM_ARM_ARCH_IO_H +#define __ASM_ARM_ARCH_IO_H + +#define PCIO_BASE 0xeb000000ul + +#define __io(a) ((a) + PCIO_BASE) + +#endif diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c index 15c6a00000ec..bec933b04ef0 100644 --- a/arch/arm/mach-versatile/pci.c +++ b/arch/arm/mach-versatile/pci.c @@ -169,11 +169,18 @@ static struct pci_ops pci_versatile_ops = { .write = versatile_write_config, }; +static struct resource io_port = { + .name = "PCI", + .start = 0, + .end = IO_SPACE_LIMIT, + .flags = IORESOURCE_IO, +}; + static struct resource io_mem = { .name = "PCI I/O space", .start = VERSATILE_PCI_MEM_BASE0, .end = VERSATILE_PCI_MEM_BASE0+VERSATILE_PCI_MEM_BASE0_SIZE-1, - .flags = IORESOURCE_IO, + .flags = IORESOURCE_MEM, }; static struct resource non_mem = { @@ -200,6 +207,12 @@ static int __init pci_versatile_setup_resources(struct pci_sys_data *sys) "memory region (%d)\n", ret); goto out; } + ret = request_resource(&ioport_resource, &io_port); + if (ret) { + printk(KERN_ERR "PCI: unable to allocate I/O " + "port region (%d)\n", ret); + goto out; + } ret = request_resource(&iomem_resource, &non_mem); if (ret) { printk(KERN_ERR "PCI: unable to allocate non-prefetchable " @@ -218,7 +231,7 @@ static int __init pci_versatile_setup_resources(struct pci_sys_data *sys) * the mem resource for this bus * the prefetch mem resource for this bus */ - pci_add_resource_offset(&sys->resources, &io_mem, sys->io_offset); + pci_add_resource_offset(&sys->resources, &io_port, sys->io_offset); pci_add_resource_offset(&sys->resources, &non_mem, sys->mem_offset); pci_add_resource_offset(&sys->resources, &pre_mem, sys->mem_offset); @@ -249,6 +262,7 @@ int __init pci_versatile_setup(int nr, struct pci_sys_data *sys) if (nr == 0) { sys->mem_offset = 0; + sys->io_offset = 0; ret = pci_versatile_setup_resources(sys); if (ret < 0) { printk("pci_versatile_setup: resources... oops?\n"); -- cgit v1.2.3-59-g8ed1b From 128789a8293653a4f889f2b1601eea07c00ff65e Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Wed, 13 Jun 2012 14:52:45 +0200 Subject: ARM: Kirkwood: Fix clk problems modular ethernet driver When the ethernet driver was built as a module, it would lock the machine when loaded. At boot the ethernet clks are unused, so get turned off. Later, when the module is loaded, the probe function would access the hardware before the clock was restarted, and the machine would lock. It has also been determined that when the clk is turned off, the interface forgets its MAC address, which for most systems, is set by the boot loader. When the machine setup file creates a platform device for the interface, prepare and enable the clock for the interface. This will ensure it is not turned off. However, if the setup file only instantiates one platform device, the other will have its clk disabled, thus maybe saving a little power. Report-by: Simon Baatz Signed-off-by: Andrew Lunn Tested-by: Simon Baatz Signed-off-by: Olof Johansson --- arch/arm/mach-kirkwood/common.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index 25fb3fd418ef..e1d2c6def5e6 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -193,9 +193,11 @@ static struct clk __init *kirkwood_register_gate_fn(const char *name, bit_idx, 0, &gating_lock, fn); } +static struct clk *ge0, *ge1; + void __init kirkwood_clk_init(void) { - struct clk *runit, *ge0, *ge1, *sata0, *sata1, *usb0, *sdio; + struct clk *runit, *sata0, *sata1, *usb0, *sdio; struct clk *crypto, *xor0, *xor1, *pex0, *pex1, *audio; tclk = clk_register_fixed_rate(NULL, "tclk", NULL, @@ -257,6 +259,9 @@ void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data) orion_ge00_init(eth_data, GE00_PHYS_BASE, IRQ_KIRKWOOD_GE00_SUM, IRQ_KIRKWOOD_GE00_ERR); + /* The interface forgets the MAC address assigned by u-boot if + the clock is turned off, so claim the clk now. */ + clk_prepare_enable(ge0); } @@ -268,6 +273,7 @@ void __init kirkwood_ge01_init(struct mv643xx_eth_platform_data *eth_data) orion_ge01_init(eth_data, GE01_PHYS_BASE, IRQ_KIRKWOOD_GE01_SUM, IRQ_KIRKWOOD_GE01_ERR); + clk_prepare_enable(ge1); } -- cgit v1.2.3-59-g8ed1b From 50a2984543aa2581d08580f8468533ce0ade8a62 Mon Sep 17 00:00:00 2001 From: Yuval Mintz Date: Sat, 16 Jun 2012 20:27:14 +0000 Subject: bnx2x: fix I2C non-respondent issue When I2C is not responding it's usually due to a previous unexpected reset during I2C operation. We release it by powering down and up the SFP+ module. Signed-off-by: Yaniv Rosner Signed-off-by: Yuval Mintz Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c | 52 +++++++++++++----------- 1 file changed, 29 insertions(+), 23 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index a3fb7215cd89..51d7ab6a0276 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -40,6 +40,7 @@ #define I2C_BSC0 0 #define I2C_BSC1 1 #define I2C_WA_RETRY_CNT 3 +#define I2C_WA_PWR_ITER (I2C_WA_RETRY_CNT - 1) #define MCPR_IMC_COMMAND_READ_OP 1 #define MCPR_IMC_COMMAND_WRITE_OP 2 @@ -7659,6 +7660,28 @@ static int bnx2x_8726_read_sfp_module_eeprom(struct bnx2x_phy *phy, return -EINVAL; } +static void bnx2x_warpcore_power_module(struct link_params *params, + struct bnx2x_phy *phy, + u8 power) +{ + u32 pin_cfg; + struct bnx2x *bp = params->bp; + + pin_cfg = (REG_RD(bp, params->shmem_base + + offsetof(struct shmem_region, + dev_info.port_hw_config[params->port].e3_sfp_ctrl)) & + PORT_HW_CFG_E3_PWR_DIS_MASK) >> + PORT_HW_CFG_E3_PWR_DIS_SHIFT; + + if (pin_cfg == PIN_CFG_NA) + return; + DP(NETIF_MSG_LINK, "Setting SFP+ module power to %d using pin cfg %d\n", + power, pin_cfg); + /* Low ==> corresponding SFP+ module is powered + * high ==> the SFP+ module is powered down + */ + bnx2x_set_cfg_pin(bp, pin_cfg, power ^ 1); +} static int bnx2x_warpcore_read_sfp_module_eeprom(struct bnx2x_phy *phy, struct link_params *params, u16 addr, u8 byte_cnt, @@ -7678,6 +7701,12 @@ static int bnx2x_warpcore_read_sfp_module_eeprom(struct bnx2x_phy *phy, /* 4 byte aligned address */ addr32 = addr & (~0x3); do { + if (cnt == I2C_WA_PWR_ITER) { + bnx2x_warpcore_power_module(params, phy, 0); + /* Note that 100us are not enough here */ + usleep_range(1000,1000); + bnx2x_warpcore_power_module(params, phy, 1); + } rc = bnx2x_bsc_read(params, phy, 0xa0, addr32, 0, byte_cnt, data_array); } while ((rc != 0) && (++cnt < I2C_WA_RETRY_CNT)); @@ -8200,29 +8229,6 @@ static void bnx2x_set_sfp_module_fault_led(struct link_params *params, bnx2x_set_e1e2_module_fault_led(params, gpio_mode); } -static void bnx2x_warpcore_power_module(struct link_params *params, - struct bnx2x_phy *phy, - u8 power) -{ - u32 pin_cfg; - struct bnx2x *bp = params->bp; - - pin_cfg = (REG_RD(bp, params->shmem_base + - offsetof(struct shmem_region, - dev_info.port_hw_config[params->port].e3_sfp_ctrl)) & - PORT_HW_CFG_E3_PWR_DIS_MASK) >> - PORT_HW_CFG_E3_PWR_DIS_SHIFT; - - if (pin_cfg == PIN_CFG_NA) - return; - DP(NETIF_MSG_LINK, "Setting SFP+ module power to %d using pin cfg %d\n", - power, pin_cfg); - /* Low ==> corresponding SFP+ module is powered - * high ==> the SFP+ module is powered down - */ - bnx2x_set_cfg_pin(bp, pin_cfg, power ^ 1); -} - static void bnx2x_warpcore_hw_reset(struct bnx2x_phy *phy, struct link_params *params) { -- cgit v1.2.3-59-g8ed1b From 5481388bc705de27ca37241a42c6612c86f2cc3b Mon Sep 17 00:00:00 2001 From: Yuval Mintz Date: Sat, 16 Jun 2012 20:27:15 +0000 Subject: bnx2x: fix link for BCM57711 with 84823 phy Signed-off-by: Yaniv Rosner Signed-off-by: Yuval Mintz Signed-off-by: Eilon Greenstein Signed-off-by: David S. Miller --- drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c index 51d7ab6a0276..6e7d5c0843b4 100644 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_link.c @@ -9754,7 +9754,7 @@ static int bnx2x_848x3_config_init(struct bnx2x_phy *phy, msleep(1); - if (!(CHIP_IS_E1(bp))) + if (!(CHIP_IS_E1x(bp))) port = BP_PATH(bp); else port = params->port; -- cgit v1.2.3-59-g8ed1b From 6b03976288538a94e072bbfcd12d69a20daea8aa Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Mon, 21 May 2012 16:31:12 +0300 Subject: remoteproc/omap: fix dev_err typo For some reason one of the dev_err invocations is using a wrong device so fix that. Signed-off-by: Ohad Ben-Cohen Cc: stable@vger.kernel.org --- drivers/remoteproc/omap_remoteproc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/remoteproc/omap_remoteproc.c b/drivers/remoteproc/omap_remoteproc.c index 69425c4e86f3..de138e30d3e6 100644 --- a/drivers/remoteproc/omap_remoteproc.c +++ b/drivers/remoteproc/omap_remoteproc.c @@ -182,7 +182,7 @@ static int __devinit omap_rproc_probe(struct platform_device *pdev) ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); if (ret) { - dev_err(pdev->dev.parent, "dma_set_coherent_mask: %d\n", ret); + dev_err(&pdev->dev, "dma_set_coherent_mask: %d\n", ret); return ret; } -- cgit v1.2.3-59-g8ed1b From fcc14ac1a86931f38da047cf8fb634c6db7b58bc Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 17 Jun 2012 18:05:05 +0200 Subject: hwmon: (coretemp) Improve support of recent Atom CPU models Document the new Atom series (Tunnel Creek and Medfield) as being supported, and list TjMax for the Atom E600 series. Also enable the Atom tjmax heuristic for these Atom CPU models. Signed-off-by: Jean Delvare Reviewed-by: Guenter Roeck Cc: Alexander Stein Cc: Fenghua Yu Cc: "R, Durgadoss" --- Documentation/hwmon/coretemp | 8 +++++++- drivers/hwmon/coretemp.c | 3 ++- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/Documentation/hwmon/coretemp b/Documentation/hwmon/coretemp index 84d46c0c71a3..f6aed440c3d7 100644 --- a/Documentation/hwmon/coretemp +++ b/Documentation/hwmon/coretemp @@ -6,7 +6,8 @@ Supported chips: Prefix: 'coretemp' CPUID: family 0x6, models 0xe (Pentium M DC), 0xf (Core 2 DC 65nm), 0x16 (Core 2 SC 65nm), 0x17 (Penryn 45nm), - 0x1a (Nehalem), 0x1c (Atom), 0x1e (Lynnfield) + 0x1a (Nehalem), 0x1c (Atom), 0x1e (Lynnfield), + 0x26 (Tunnel Creek Atom), 0x27 (Medfield Atom) Datasheet: Intel 64 and IA-32 Architectures Software Developer's Manual Volume 3A: System Programming Guide http://softwarecommunity.intel.com/Wiki/Mobility/720.htm @@ -65,6 +66,9 @@ Process Processor TjMax(C) U3400 105 P4505/P4500 90 +32nm Atom Processors + Z2460 90 + 45nm Xeon Processors 5400 Quad-Core X5492, X5482, X5472, X5470, X5460, X5450 85 E5472, E5462, E5450/40/30/20/10/05 85 @@ -85,6 +89,8 @@ Process Processor TjMax(C) N475/470/455/450 100 N280/270 90 330/230 125 + E680/660/640/620 90 + E680T/660T/640T/620T 110 45nm Core2 Processors Solo ULV SU3500/3300 100 diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index b9d512331ed4..495add52c802 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -210,7 +210,8 @@ static int __cpuinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id, /* Atom CPUs */ - if (c->x86_model == 0x1c) { + if (c->x86_model == 0x1c || c->x86_model == 0x26 + || c->x86_model == 0x27) { usemsr_ee = 0; host_bridge = pci_get_bus_and_slot(0, PCI_DEVFN(0, 0)); -- cgit v1.2.3-59-g8ed1b From 5592906f8b01282ea3c2acaf641fd067ad4bb3dc Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sun, 17 Jun 2012 18:05:05 +0200 Subject: hwmon: (coretemp) Add support for Atom D2000 and N2000 series CPU models Document the Atom series D2000 and N2000 (Cedar Trail) as being supported. List and set TjMax for those series. Cc: Fenghua Yu Cc: "R, Durgadoss" Signed-off-by: Guenter Roeck Signed-off-by: Jean Delvare --- Documentation/hwmon/coretemp | 5 ++++- drivers/hwmon/coretemp.c | 3 +++ 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/Documentation/hwmon/coretemp b/Documentation/hwmon/coretemp index f6aed440c3d7..71d83d2f984d 100644 --- a/Documentation/hwmon/coretemp +++ b/Documentation/hwmon/coretemp @@ -7,7 +7,8 @@ Supported chips: CPUID: family 0x6, models 0xe (Pentium M DC), 0xf (Core 2 DC 65nm), 0x16 (Core 2 SC 65nm), 0x17 (Penryn 45nm), 0x1a (Nehalem), 0x1c (Atom), 0x1e (Lynnfield), - 0x26 (Tunnel Creek Atom), 0x27 (Medfield Atom) + 0x26 (Tunnel Creek Atom), 0x27 (Medfield Atom), + 0x36 (Cedar Trail Atom) Datasheet: Intel 64 and IA-32 Architectures Software Developer's Manual Volume 3A: System Programming Guide http://softwarecommunity.intel.com/Wiki/Mobility/720.htm @@ -68,6 +69,8 @@ Process Processor TjMax(C) 32nm Atom Processors Z2460 90 + D2700/2550/2500 100 + N2850/2800/2650/2600 100 45nm Xeon Processors 5400 Quad-Core X5492, X5482, X5472, X5470, X5460, X5450 85 diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 495add52c802..42c2f431ea51 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -224,6 +224,9 @@ static int __cpuinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id, tjmax = 90000; pci_dev_put(host_bridge); + } else if (c->x86_model == 0x36) { + usemsr_ee = 0; + tjmax = 100000; } if (c->x86_model > 0xe && usemsr_ee) { -- cgit v1.2.3-59-g8ed1b From 41e58a1f2b90c88d94b4bd84beb9927a4c2704e9 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sun, 17 Jun 2012 18:05:05 +0200 Subject: hwmon: (coretemp) Improve support for TjMax detection on Atom CPUs Atom CPUs don't have a register to retrieve TjMax. Detection so far was incomplete. Use the X86 model ID to improve it. Signed-off-by: Guenter Roeck Signed-off-by: Jean Delvare --- drivers/hwmon/coretemp.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 42c2f431ea51..22716833739a 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -191,6 +191,24 @@ static ssize_t show_temp(struct device *dev, return tdata->valid ? sprintf(buf, "%d\n", tdata->temp) : -EAGAIN; } +struct tjmax { + char const *id; + int tjmax; +}; + +static struct tjmax __cpuinitconst tjmax_table[] = { + { "CPU D410", 100000 }, + { "CPU D425", 100000 }, + { "CPU D510", 100000 }, + { "CPU D525", 100000 }, + { "CPU N450", 100000 }, + { "CPU N455", 100000 }, + { "CPU N470", 100000 }, + { "CPU N475", 100000 }, + { "CPU 230", 100000 }, + { "CPU 330", 125000 }, +}; + static int __cpuinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id, struct device *dev) { @@ -202,6 +220,13 @@ static int __cpuinit adjust_tjmax(struct cpuinfo_x86 *c, u32 id, int err; u32 eax, edx; struct pci_dev *host_bridge; + int i; + + /* explicit tjmax table entries override heuristics */ + for (i = 0; i < ARRAY_SIZE(tjmax_table); i++) { + if (strstr(c->x86_model_id, tjmax_table[i].id)) + return tjmax_table[i].tjmax; + } /* Early chips have no MSR for TjMax */ -- cgit v1.2.3-59-g8ed1b From 813441f16e5248e7fd6a4044e8adabf4ac3aaec9 Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sun, 17 Jun 2012 18:05:06 +0200 Subject: hwmon: (coretemp) Document TjMax for 3rd generation i5/i7 processors Tjmax values from Intel datasheets. Signed-off-by: Guenter Roeck Signed-off-by: Jean Delvare --- Documentation/hwmon/coretemp | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Documentation/hwmon/coretemp b/Documentation/hwmon/coretemp index 71d83d2f984d..c86b50c03ea8 100644 --- a/Documentation/hwmon/coretemp +++ b/Documentation/hwmon/coretemp @@ -54,6 +54,17 @@ Some information comes from ark.intel.com Process Processor TjMax(C) +22nm Core i5/i7 Processors + i7 3920XM, 3820QM, 3720QM, 3667U, 3520M 105 + i5 3427U, 3360M/3320M 105 + i7 3770/3770K 105 + i5 3570/3570K, 3550, 3470/3450 105 + i7 3770S 103 + i5 3570S/3550S, 3475S/3470S/3450S 103 + i7 3770T 94 + i5 3570T 94 + i5 3470T 91 + 32nm Core i3/i5/i7 Processors i7 660UM/640/620, 640LM/620, 620M, 610E 105 i5 540UM/520/430, 540M/520/450/430 105 -- cgit v1.2.3-59-g8ed1b From 1268a172cdb00353f107e6cc964dccff29047077 Mon Sep 17 00:00:00 2001 From: Jean Delvare Date: Sun, 17 Jun 2012 18:05:06 +0200 Subject: hwmon: (coretemp) Drop needless initialization The value is overridden a few lines later. Signed-off-by: Jean Delvare Acked-by: Guenter Roeck --- drivers/hwmon/coretemp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index 22716833739a..7f1feb2f467a 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -801,7 +801,7 @@ MODULE_DEVICE_TABLE(x86cpu, coretemp_ids); static int __init coretemp_init(void) { - int i, err = -ENODEV; + int i, err; /* * CPUID.06H.EAX[0] indicates whether the CPU has thermal -- cgit v1.2.3-59-g8ed1b From 9d88fc0b3503e80ab1a5c9fb3b3f074302f44b33 Mon Sep 17 00:00:00 2001 From: Sangbeom Kim Date: Wed, 13 Jun 2012 17:27:16 +0900 Subject: regulator: Fix the s5m8767a problem of the division by null If ramp_delay is 0, delay value can be divided by zero. This patch can fix the problem. Signed-off-by: Sangbeom Kim Signed-off-by: Mark Brown --- drivers/regulator/s5m8767.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/s5m8767.c b/drivers/regulator/s5m8767.c index 290d6fc01029..9caadb482178 100644 --- a/drivers/regulator/s5m8767.c +++ b/drivers/regulator/s5m8767.c @@ -451,7 +451,7 @@ static int s5m8767_set_voltage_time_sel(struct regulator_dev *rdev, desc = reg_voltage_map[reg_id]; - if (old_sel < new_sel) + if ((old_sel < new_sel) && s5m8767->ramp_delay) return DIV_ROUND_UP(desc->step * (new_sel - old_sel), s5m8767->ramp_delay * 1000); return 0; -- cgit v1.2.3-59-g8ed1b From f7f3f1ad9ee13c962122e36752ef6908aff920a2 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Wed, 30 May 2012 12:47:26 +0800 Subject: regulator: Change ab8500 match names to reflect Device Tree The 'name' field in 'struct of_regulator_match' expects to match with its corresponding regulator device node in the Device Tree. This patch renames each of the regulators in the ab8500 regulator driver so this is true. Signed-off-by: Lee Jones Acked-by: Linus Walleij Signed-off-by: Mark Brown --- drivers/regulator/ab8500.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c index e1b8c54ace5a..a739f5ca936a 100644 --- a/drivers/regulator/ab8500.c +++ b/drivers/regulator/ab8500.c @@ -794,17 +794,17 @@ static __devinit int ab8500_regulator_register(struct platform_device *pdev, } static struct of_regulator_match ab8500_regulator_matches[] = { - { .name = "LDO-AUX1", .driver_data = (void *) AB8500_LDO_AUX1, }, - { .name = "LDO-AUX2", .driver_data = (void *) AB8500_LDO_AUX2, }, - { .name = "LDO-AUX3", .driver_data = (void *) AB8500_LDO_AUX3, }, - { .name = "LDO-INTCORE", .driver_data = (void *) AB8500_LDO_INTCORE, }, - { .name = "LDO-TVOUT", .driver_data = (void *) AB8500_LDO_TVOUT, }, - { .name = "LDO-USB", .driver_data = (void *) AB8500_LDO_USB, }, - { .name = "LDO-AUDIO", .driver_data = (void *) AB8500_LDO_AUDIO, }, - { .name = "LDO-ANAMIC1", .driver_data = (void *) AB8500_LDO_ANAMIC1, }, - { .name = "LDO-ANAMIC2", .driver_data = (void *) AB8500_LDO_ANAMIC2, }, - { .name = "LDO-DMIC", .driver_data = (void *) AB8500_LDO_DMIC, }, - { .name = "LDO-ANA", .driver_data = (void *) AB8500_LDO_ANA, }, + { .name = "ab8500_ldo_aux1", .driver_data = (void *) AB8500_LDO_AUX1, }, + { .name = "ab8500_ldo_aux2", .driver_data = (void *) AB8500_LDO_AUX2, }, + { .name = "ab8500_ldo_aux3", .driver_data = (void *) AB8500_LDO_AUX3, }, + { .name = "ab8500_ldo_intcore", .driver_data = (void *) AB8500_LDO_INTCORE, }, + { .name = "ab8500_ldo_tvout", .driver_data = (void *) AB8500_LDO_TVOUT, }, + { .name = "ab8500_ldo_usb", .driver_data = (void *) AB8500_LDO_USB, }, + { .name = "ab8500_ldo_audio", .driver_data = (void *) AB8500_LDO_AUDIO, }, + { .name = "ab8500_ldo_anamic1", .driver_data = (void *) AB8500_LDO_ANAMIC1, }, + { .name = "ab8500_ldo_amamic2", .driver_data = (void *) AB8500_LDO_ANAMIC2, }, + { .name = "ab8500_ldo_dmic", .driver_data = (void *) AB8500_LDO_DMIC, }, + { .name = "ab8500_ldo_ana", .driver_data = (void *) AB8500_LDO_ANA, }, }; static __devinit int -- cgit v1.2.3-59-g8ed1b From ea851f4f08eb366e829abb8f1b2f1741a19ed696 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Wed, 30 May 2012 12:47:27 +0800 Subject: regulator: Change db8500-prcmu match names to reflect Device Tree The 'name' field in 'struct of_regulator_match' expects to match with its corresponding regulator device node in the Device Tree. This patch renames each of the regulators in the db8500-prcum regulator driver so this is true. Signed-off-by: Lee Jones Acked-by: Linus Walleij Signed-off-by: Mark Brown --- drivers/regulator/db8500-prcmu.c | 40 ++++++++++++++++++++-------------------- 1 file changed, 20 insertions(+), 20 deletions(-) diff --git a/drivers/regulator/db8500-prcmu.c b/drivers/regulator/db8500-prcmu.c index 968f97f3cb3d..9dbb491b6efa 100644 --- a/drivers/regulator/db8500-prcmu.c +++ b/drivers/regulator/db8500-prcmu.c @@ -452,26 +452,26 @@ static __devinit int db8500_regulator_register(struct platform_device *pdev, } static struct of_regulator_match db8500_regulator_matches[] = { - { .name = "db8500-vape", .driver_data = (void *) DB8500_REGULATOR_VAPE, }, - { .name = "db8500-varm", .driver_data = (void *) DB8500_REGULATOR_VARM, }, - { .name = "db8500-vmodem", .driver_data = (void *) DB8500_REGULATOR_VMODEM, }, - { .name = "db8500-vpll", .driver_data = (void *) DB8500_REGULATOR_VPLL, }, - { .name = "db8500-vsmps1", .driver_data = (void *) DB8500_REGULATOR_VSMPS1, }, - { .name = "db8500-vsmps2", .driver_data = (void *) DB8500_REGULATOR_VSMPS2, }, - { .name = "db8500-vsmps3", .driver_data = (void *) DB8500_REGULATOR_VSMPS3, }, - { .name = "db8500-vrf1", .driver_data = (void *) DB8500_REGULATOR_VRF1, }, - { .name = "db8500-sva-mmdsp", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAMMDSP, }, - { .name = "db8500-sva-mmdsp-ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAMMDSPRET, }, - { .name = "db8500-sva-pipe", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAPIPE, }, - { .name = "db8500-sia-mmdsp", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAMMDSP, }, - { .name = "db8500-sia-mmdsp-ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAMMDSPRET, }, - { .name = "db8500-sia-pipe", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAPIPE, }, - { .name = "db8500-sga", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SGA, }, - { .name = "db8500-b2r2-mcde", .driver_data = (void *) DB8500_REGULATOR_SWITCH_B2R2_MCDE, }, - { .name = "db8500-esram12", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM12, }, - { .name = "db8500-esram12-ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM12RET, }, - { .name = "db8500-esram34", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM34, }, - { .name = "db8500-esram34-ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM34RET, }, + { .name = "db8500_vape", .driver_data = (void *) DB8500_REGULATOR_VAPE, }, + { .name = "db8500_varm", .driver_data = (void *) DB8500_REGULATOR_VARM, }, + { .name = "db8500_vmodem", .driver_data = (void *) DB8500_REGULATOR_VMODEM, }, + { .name = "db8500_vpll", .driver_data = (void *) DB8500_REGULATOR_VPLL, }, + { .name = "db8500_vsmps1", .driver_data = (void *) DB8500_REGULATOR_VSMPS1, }, + { .name = "db8500_vsmps2", .driver_data = (void *) DB8500_REGULATOR_VSMPS2, }, + { .name = "db8500_vsmps3", .driver_data = (void *) DB8500_REGULATOR_VSMPS3, }, + { .name = "db8500_vrf1", .driver_data = (void *) DB8500_REGULATOR_VRF1, }, + { .name = "db8500_sva_mmdsp", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAMMDSP, }, + { .name = "db8500_sva_mmdsp_ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAMMDSPRET, }, + { .name = "db8500_sva_pipe", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SVAPIPE, }, + { .name = "db8500_sia_mmdsp", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAMMDSP, }, + { .name = "db8500_sia_mmdsp_ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAMMDSPRET, }, + { .name = "db8500_sia_pipe", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SIAPIPE, }, + { .name = "db8500_sga", .driver_data = (void *) DB8500_REGULATOR_SWITCH_SGA, }, + { .name = "db8500_b2r2_mcde", .driver_data = (void *) DB8500_REGULATOR_SWITCH_B2R2_MCDE, }, + { .name = "db8500_esram12", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM12, }, + { .name = "db8500_esram12_ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM12RET, }, + { .name = "db8500_esram34", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM34, }, + { .name = "db8500_esram34_ret", .driver_data = (void *) DB8500_REGULATOR_SWITCH_ESRAM34RET, }, }; static __devinit int -- cgit v1.2.3-59-g8ed1b From 14e1e9f5cadb7cff3a2846c27cc1b9c8f207ee18 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Wed, 13 Jun 2012 14:06:07 -0300 Subject: pinctrl: mxs: Use kfree to fix build error commit 0bf7481 (pinctrl: pinctrl-mxs: Take care of frees if the kzalloc fails) introduced the following build error: drivers/pinctrl/pinctrl-mxs.c:140:3: error: implicit declaration of function 'free' Use kfree function instead. Signed-off-by: Fabio Estevam Acked-by: Devendra Naga Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-mxs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/pinctrl/pinctrl-mxs.c b/drivers/pinctrl/pinctrl-mxs.c index afb50ee64598..4ba4636b6a4a 100644 --- a/drivers/pinctrl/pinctrl-mxs.c +++ b/drivers/pinctrl/pinctrl-mxs.c @@ -137,7 +137,7 @@ static int mxs_dt_node_to_map(struct pinctrl_dev *pctldev, free_group: if (!purecfg) - free(group); + kfree(group); free: kfree(new_map); return ret; -- cgit v1.2.3-59-g8ed1b From daf731748f978efb4f741d19b499236e03bf667f Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Tue, 22 May 2012 11:46:45 +0200 Subject: pinctrl/nomadik: document Alt-C glitch This documentation comment existed in an earlier patch set for GPIO consolidation, so I'm saving it for maintainability of the code. Acked-by: Stephen Warren Signed-off-by: Linus Walleij --- drivers/pinctrl/pinctrl-nomadik.c | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) diff --git a/drivers/pinctrl/pinctrl-nomadik.c b/drivers/pinctrl/pinctrl-nomadik.c index e8937e7e4999..3e7e47d6b385 100644 --- a/drivers/pinctrl/pinctrl-nomadik.c +++ b/drivers/pinctrl/pinctrl-nomadik.c @@ -1438,7 +1438,27 @@ static int nmk_pmx_enable(struct pinctrl_dev *pctldev, unsigned function, dev_dbg(npct->dev, "enable group %s, %u pins\n", g->name, g->npins); - /* Handle this special glitch on altfunction C */ + /* + * If we're setting altfunc C by setting both AFSLA and AFSLB to 1, + * we may pass through an undesired state. In this case we take + * some extra care. + * + * Safe sequence used to switch IOs between GPIO and Alternate-C mode: + * - Save SLPM registers (since we have a shadow register in the + * nmk_chip we're using that as backup) + * - Set SLPM=0 for the IOs you want to switch and others to 1 + * - Configure the GPIO registers for the IOs that are being switched + * - Set IOFORCE=1 + * - Modify the AFLSA/B registers for the IOs that are being switched + * - Set IOFORCE=0 + * - Restore SLPM registers + * - Any spurious wake up event during switch sequence to be ignored + * and cleared + * + * We REALLY need to save ALL slpm registers, because the external + * IOFORCE will switch *all* ports to their sleepmode setting to as + * to avoid glitches. (Not just one port!) + */ glitch = (g->altsetting == NMK_GPIO_ALT_C); if (glitch) { -- cgit v1.2.3-59-g8ed1b From 22cec7ca02f81b57a06d238a4043bc6c9ba6ea03 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Fri, 8 Jun 2012 11:36:45 +0200 Subject: ARM: iconnect: Remove include of removed linux/spi/orion_spi.h v3.5-rc1 fails to build when DT and iconnect is enabled because of this now none existant include file. Also remove the other two SPI include files, which are not needed with the move to DT. Signed-off-by: Andrew Lunn Acked-by: Arnaud Patard Signed-off-by: Olof Johansson --- arch/arm/mach-kirkwood/board-iconnect.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/arch/arm/mach-kirkwood/board-iconnect.c b/arch/arm/mach-kirkwood/board-iconnect.c index 2222c5739519..b0d3cc49269d 100644 --- a/arch/arm/mach-kirkwood/board-iconnect.c +++ b/arch/arm/mach-kirkwood/board-iconnect.c @@ -20,9 +20,6 @@ #include #include #include -#include -#include -#include #include #include #include -- cgit v1.2.3-59-g8ed1b From 6bc07d6afa1679a2f5b272bc36618314686e143a Mon Sep 17 00:00:00 2001 From: Todd Poynor Date: Sun, 17 Jun 2012 11:57:50 -0600 Subject: ARM: OMAP: PM: Lock clocks list while generating summary Commit a53025724052b2b1edbc982a4a248784638f563d (OMAP: Add debugfs node to show the summary of all clocks) introduced clock summary, however, we are interested in seeing snapshot of the clock state, not in dynamically changing clock configurations as the data provided by clock summary will then be useless for debugging configuration issues. So, hold the common lock when dumping the clock summary. Cc: Paul Walmsley Cc: Tony Lindgren Signed-off-by: Todd Poynor [nm@ti.com: added commit message] Signed-off-by: Nishanth Menon [paul@pwsan.com: minor edits to commit message] Signed-off-by: Paul Walmsley --- arch/arm/plat-omap/clock.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c index 62ec5c452792..706b7e29397f 100644 --- a/arch/arm/plat-omap/clock.c +++ b/arch/arm/plat-omap/clock.c @@ -461,6 +461,7 @@ static int clk_dbg_show_summary(struct seq_file *s, void *unused) struct clk *c; struct clk *pa; + mutex_lock(&clocks_mutex); seq_printf(s, "%-30s %-30s %-10s %s\n", "clock-name", "parent-name", "rate", "use-count"); @@ -469,6 +470,7 @@ static int clk_dbg_show_summary(struct seq_file *s, void *unused) seq_printf(s, "%-30s %-30s %-10lu %d\n", c->name, pa ? pa->name : "none", c->rate, c->usecount); } + mutex_unlock(&clocks_mutex); return 0; } -- cgit v1.2.3-59-g8ed1b From 6b57c0155cb78d15b0d93b2c7f66ad9536862476 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 14 Jun 2012 13:55:25 +0800 Subject: regulator: tps65023: Fix mask for LDOs output voltage select control According to the datasheet: The LDO_CTRL registers are used to set the output voltage of LDO1 and LDO2. LDO_CTRL[7] and LDO_CTRL[3] are reserved and should always be written to 0. Thus the mask for TPS65023_LDO_1 and TPS65023_LDO_2 should be 0x07 and 0x70 respectively. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps65023-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c index f841bd0db6aa..8f1be8586c72 100644 --- a/drivers/regulator/tps65023-regulator.c +++ b/drivers/regulator/tps65023-regulator.c @@ -71,7 +71,7 @@ /* LDO_CTRL bitfields */ #define TPS65023_LDO_CTRL_LDOx_SHIFT(ldo_id) ((ldo_id)*4) -#define TPS65023_LDO_CTRL_LDOx_MASK(ldo_id) (0x0F << ((ldo_id)*4)) +#define TPS65023_LDO_CTRL_LDOx_MASK(ldo_id) (0x07 << ((ldo_id)*4)) /* Number of step-down converters available */ #define TPS65023_NUM_DCDC 3 -- cgit v1.2.3-59-g8ed1b From f43380981716c9b48bf2809e4cd1cb0c6b71429d Mon Sep 17 00:00:00 2001 From: Roland Stigge Date: Sun, 17 Jun 2012 21:13:34 +0100 Subject: ARM: 7426/1: mmc: mmci: Remove wrong error handling of gpio 0 Zero is a valid GPIO and shouldn't be handled as an error return code from of_get_named_gpio(). It was a leftover from old code before getting pdata->gpio_*() was modified. Signed-off-by: Roland Stigge Acked-by: Linus Walleij Signed-off-by: Russell King --- drivers/mmc/host/mmci.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 0045ee001ec7..78d3e4845997 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -1216,12 +1216,7 @@ static void mmci_dt_populate_generic_pdata(struct device_node *np, int bus_width = 0; pdata->gpio_wp = of_get_named_gpio(np, "wp-gpios", 0); - if (!pdata->gpio_wp) - pdata->gpio_wp = -1; - pdata->gpio_cd = of_get_named_gpio(np, "cd-gpios", 0); - if (!pdata->gpio_cd) - pdata->gpio_cd = -1; if (of_get_property(np, "cd-inverted", NULL)) pdata->cd_invert = true; -- cgit v1.2.3-59-g8ed1b From 2805b9ab7c836cfbe01e86129983e36205078cb2 Mon Sep 17 00:00:00 2001 From: Roland Stigge Date: Sun, 17 Jun 2012 21:14:27 +0100 Subject: ARM: 7427/1: mmc: mmci: Defer probe() in case of yet uninitialized GPIOs If the GPIOs used by the MMCI driver are not registered yet when the driver is probe()d, they can't be used. This happens if the mmci driver is probed before the respective GPIO controller (e.g. on the LPC32xx EA3250 board, the PCA9532 GPIO controller would be initialized via DT after mmci). Therefore, we defer mmci in this case. Signed-off-by: Roland Stigge Acked-by: Linus Walleij Signed-off-by: Russell King --- drivers/mmc/host/mmci.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/mmc/host/mmci.c b/drivers/mmc/host/mmci.c index 78d3e4845997..50ff19a62368 100644 --- a/drivers/mmc/host/mmci.c +++ b/drivers/mmc/host/mmci.c @@ -1425,6 +1425,10 @@ static int __devinit mmci_probe(struct amba_device *dev, writel(0, host->base + MMCIMASK1); writel(0xfff, host->base + MMCICLEAR); + if (plat->gpio_cd == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto err_gpio_cd; + } if (gpio_is_valid(plat->gpio_cd)) { ret = gpio_request(plat->gpio_cd, DRIVER_NAME " (cd)"); if (ret == 0) @@ -1448,6 +1452,10 @@ static int __devinit mmci_probe(struct amba_device *dev, if (ret >= 0) host->gpio_cd_irq = gpio_to_irq(plat->gpio_cd); } + if (plat->gpio_wp == -EPROBE_DEFER) { + ret = -EPROBE_DEFER; + goto err_gpio_wp; + } if (gpio_is_valid(plat->gpio_wp)) { ret = gpio_request(plat->gpio_wp, DRIVER_NAME " (wp)"); if (ret == 0) -- cgit v1.2.3-59-g8ed1b From a6dc8c04218eb752ff79cdc24a995cf51866caed Mon Sep 17 00:00:00 2001 From: Janne Kalliomäki Date: Sun, 17 Jun 2012 17:05:24 -0400 Subject: hfsplus: fix overflow in sector calculations in hfsplus_submit_bio MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The variable io_size was unsigned int, which caused the wrong sector number to be calculated after aligning it. This then caused mount to fail with big volumes, as backup volume header information was searched from a wrong sector. Signed-off-by: Janne Kalliomäki Signed-off-by: Christoph Hellwig Signed-off-by: Linus Torvalds --- fs/hfsplus/wrapper.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/hfsplus/wrapper.c b/fs/hfsplus/wrapper.c index 7daf4b852d1c..90effcccca9a 100644 --- a/fs/hfsplus/wrapper.c +++ b/fs/hfsplus/wrapper.c @@ -56,7 +56,7 @@ int hfsplus_submit_bio(struct super_block *sb, sector_t sector, DECLARE_COMPLETION_ONSTACK(wait); struct bio *bio; int ret = 0; - unsigned int io_size; + u64 io_size; loff_t start; int offset; -- cgit v1.2.3-59-g8ed1b From 7dea9665fee828fb56db3bae5b9685d9fa006d33 Mon Sep 17 00:00:00 2001 From: Matthew Garrett Date: Sun, 17 Jun 2012 17:05:25 -0400 Subject: hfsplus: fix bless ioctl when used with hardlinks HFS+ doesn't really implement hard links - instead, hardlinks are indicated by a magic file type which refers to an indirect node in a hidden directory. The spec indicates that stat() should return the inode number of the indirect node, but it turns out that this doesn't satisfy the firmware when it's looking for a bootloader - it wants the catalog ID of the hardlink file instead. Fix up this case. Signed-off-by: Matthew Garrett Signed-off-by: Christoph Hellwig Signed-off-by: Linus Torvalds --- fs/hfsplus/ioctl.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/fs/hfsplus/ioctl.c b/fs/hfsplus/ioctl.c index c640ba57074b..09addc8615fa 100644 --- a/fs/hfsplus/ioctl.c +++ b/fs/hfsplus/ioctl.c @@ -31,6 +31,7 @@ static int hfsplus_ioctl_bless(struct file *file, int __user *user_flags) struct hfsplus_sb_info *sbi = HFSPLUS_SB(inode->i_sb); struct hfsplus_vh *vh = sbi->s_vhdr; struct hfsplus_vh *bvh = sbi->s_backup_vhdr; + u32 cnid = (unsigned long)dentry->d_fsdata; if (!capable(CAP_SYS_ADMIN)) return -EPERM; @@ -41,8 +42,12 @@ static int hfsplus_ioctl_bless(struct file *file, int __user *user_flags) vh->finder_info[0] = bvh->finder_info[0] = cpu_to_be32(parent_ino(dentry)); - /* Bootloader */ - vh->finder_info[1] = bvh->finder_info[1] = cpu_to_be32(inode->i_ino); + /* + * Bootloader. Just using the inode here breaks in the case of + * hard links - the firmware wants the ID of the hard link file, + * but the inode points at the indirect inode + */ + vh->finder_info[1] = bvh->finder_info[1] = cpu_to_be32(cnid); /* Per spec, the OS X system folder - same as finder_info[0] here */ vh->finder_info[5] = bvh->finder_info[5] = -- cgit v1.2.3-59-g8ed1b From b6138ed60457ef1e9150692f6790eb4a2a696308 Mon Sep 17 00:00:00 2001 From: Jacob Keller Date: Sat, 16 Jun 2012 23:29:00 +0000 Subject: ixgbe: Fix PHC loophole allowing misconfiguration of increment register This patch fixes a potential hole when configuring the cycle counter used to generate the nanosecond time clock. This clock is based off of the SYSTIME registers along with the TIMINCA registers. The TIMINCA register determines the increment to be added to the SYSTIME registers every DMA clock tick. This register needs to be reconfigured whenever the link-speed changes. However, the value calculated stays the same when link is down and when link is up. Misconfiguration can occur if the link status changes due to a reset, which causes the TIMINCA register to be reset. This reset puts the device in an unstable state where the SYSTIME registers stop incrementing and the PTP protocol does not function. The solution is to double check the TIMINCA value and always reset the value if the register is zero. This prevents a misconfiguration bug that halts the PHC. Signed-off-by: Jacob Keller Acked-by: Don Skidmore Tested-by: Phil Schmitt Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c | 13 +++++++++++-- 1 file changed, 11 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c index ddc6a4d19302..dcebd128becf 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c @@ -708,6 +708,7 @@ void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter) { struct ixgbe_hw *hw = &adapter->hw; u32 incval = 0; + u32 timinca = 0; u32 shift = 0; u32 cycle_speed; unsigned long flags; @@ -730,8 +731,16 @@ void ixgbe_ptp_start_cyclecounter(struct ixgbe_adapter *adapter) break; } - /* Bail if the cycle speed didn't change */ - if (adapter->cycle_speed == cycle_speed) + /* + * grab the current TIMINCA value from the register so that it can be + * double checked. If the register value has been cleared, it must be + * reset to the correct value for generating a cyclecounter. If + * TIMINCA is zero, the SYSTIME registers do not increment at all. + */ + timinca = IXGBE_READ_REG(hw, IXGBE_TIMINCA); + + /* Bail if the cycle speed didn't change and TIMINCA is non-zero */ + if (adapter->cycle_speed == cycle_speed && timinca) return; /* disable the SDP clock out */ -- cgit v1.2.3-59-g8ed1b From b7e5887e0e414bde0a2f311ae3fbea5611562e29 Mon Sep 17 00:00:00 2001 From: Sarveshwar Bandi Date: Wed, 13 Jun 2012 19:51:43 +0000 Subject: be2net: reduce gso_max_size setting to account for ethernet header. The maximum size of packet that can be handled by controller including ethernet header is 65535. Reducing gso_max_size accordingly. Signed-off-by: Sarveshwar Bandi Signed-off-by: David S. Miller --- drivers/net/ethernet/emulex/benet/be_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index fdb50cec6b51..501dfa9c88ec 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -3237,7 +3237,7 @@ static void be_netdev_init(struct net_device *netdev) netdev->flags |= IFF_MULTICAST; - netif_set_gso_max_size(netdev, 65535); + netif_set_gso_max_size(netdev, 65535 - ETH_HLEN); netdev->netdev_ops = &be_netdev_ops; -- cgit v1.2.3-59-g8ed1b From 97f1d8cd8d61642d01af1fc181f3103314128c3b Mon Sep 17 00:00:00 2001 From: Vasundhara Volam Date: Wed, 13 Jun 2012 19:51:44 +0000 Subject: be2net: Modify error message to incorporate subsystem Modify IOCTL error message to print subsystem also. Signed-off-by: Vasundhara Volam Signed-off-by: David S. Miller --- drivers/net/ethernet/emulex/benet/be_cmds.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.c b/drivers/net/ethernet/emulex/benet/be_cmds.c index 8d06ea381741..921c2082af4c 100644 --- a/drivers/net/ethernet/emulex/benet/be_cmds.c +++ b/drivers/net/ethernet/emulex/benet/be_cmds.c @@ -122,15 +122,15 @@ static int be_mcc_compl_process(struct be_adapter *adapter, goto done; if (compl_status == MCC_STATUS_UNAUTHORIZED_REQUEST) { - dev_warn(&adapter->pdev->dev, "This domain(VM) is not " - "permitted to execute this cmd (opcode %d)\n", - opcode); + dev_warn(&adapter->pdev->dev, + "opcode %d-%d is not permitted\n", + opcode, subsystem); } else { extd_status = (compl->status >> CQE_STATUS_EXTD_SHIFT) & CQE_STATUS_EXTD_MASK; - dev_err(&adapter->pdev->dev, "Cmd (opcode %d) failed:" - "status %d, extd-status %d\n", - opcode, compl_status, extd_status); + dev_err(&adapter->pdev->dev, + "opcode %d-%d failed:status %d-%d\n", + opcode, subsystem, compl_status, extd_status); } } done: -- cgit v1.2.3-59-g8ed1b From 0b3f0e7ae0765c81c7d659811595ea5058ae05a7 Mon Sep 17 00:00:00 2001 From: Vasundhara Volam Date: Wed, 13 Jun 2012 19:51:45 +0000 Subject: be2net: Increase statistics structure size for skyhawk. Increasing the hardware statistics structure to accomodate statistics for skyhawk. Signed-off-by: Vasundhara Volam Signed-off-by: David S. Miller --- drivers/net/ethernet/emulex/benet/be_cmds.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/emulex/benet/be_cmds.h b/drivers/net/ethernet/emulex/benet/be_cmds.h index 9625bf420c16..b3f3fc3d1323 100644 --- a/drivers/net/ethernet/emulex/benet/be_cmds.h +++ b/drivers/net/ethernet/emulex/benet/be_cmds.h @@ -1566,7 +1566,7 @@ struct be_hw_stats_v1 { u32 rsvd0[BE_TXP_SW_SZ]; struct be_erx_stats_v1 erx; struct be_pmem_stats pmem; - u32 rsvd1[3]; + u32 rsvd1[18]; }; struct be_cmd_req_get_stats_v1 { -- cgit v1.2.3-59-g8ed1b From 86a2f415e6cdc5dbb2163b31abf4d36f26f7e3da Mon Sep 17 00:00:00 2001 From: Phil Sutter Date: Thu, 14 Jun 2012 01:18:42 +0000 Subject: usbnet: sanitise overlong driver information strings As seen on smsc75xx, driver_info->description being longer than 32 characters messes up 'ethtool -i' output. Signed-off-by: Phil Sutter Signed-off-by: David S. Miller --- drivers/net/usb/usbnet.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 9f58330f1312..d4f7256a607d 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -876,9 +876,9 @@ void usbnet_get_drvinfo (struct net_device *net, struct ethtool_drvinfo *info) { struct usbnet *dev = netdev_priv(net); - strncpy (info->driver, dev->driver_name, sizeof info->driver); - strncpy (info->version, DRIVER_VERSION, sizeof info->version); - strncpy (info->fw_version, dev->driver_info->description, + strlcpy (info->driver, dev->driver_name, sizeof info->driver); + strlcpy (info->version, DRIVER_VERSION, sizeof info->version); + strlcpy (info->fw_version, dev->driver_info->description, sizeof info->fw_version); usb_make_path (dev->udev, info->bus_info, sizeof info->bus_info); } -- cgit v1.2.3-59-g8ed1b From df2bcc4af2616b18efeaa3d044fe15ce891c5d21 Mon Sep 17 00:00:00 2001 From: Amerigo Wang Date: Thu, 14 Jun 2012 22:39:27 +0000 Subject: bonding: show all the link status of slaves There are four link statuses of a bonding slave, the procfs code shows a wrong status when using downdelay/updelay: (slave->link == BOND_LINK_UP) ? "up" : "down" It doesn't respect the rest two statuses. This patch fixes it. Cc: Jay Vosburgh Cc: Andy Gospodarek Cc: "David S. Miller" Signed-off-by: Cong Wang Signed-off-by: David S. Miller --- drivers/net/bonding/bond_procfs.c | 15 +++++++++++++-- 1 file changed, 13 insertions(+), 2 deletions(-) diff --git a/drivers/net/bonding/bond_procfs.c b/drivers/net/bonding/bond_procfs.c index ad284baafe87..3cea38d37344 100644 --- a/drivers/net/bonding/bond_procfs.c +++ b/drivers/net/bonding/bond_procfs.c @@ -150,14 +150,25 @@ static void bond_info_show_master(struct seq_file *seq) } } +static const char *bond_slave_link_status(s8 link) +{ + static const char * const status[] = { + [BOND_LINK_UP] = "up", + [BOND_LINK_FAIL] = "going down", + [BOND_LINK_DOWN] = "down", + [BOND_LINK_BACK] = "going back", + }; + + return status[link]; +} + static void bond_info_show_slave(struct seq_file *seq, const struct slave *slave) { struct bonding *bond = seq->private; seq_printf(seq, "\nSlave Interface: %s\n", slave->dev->name); - seq_printf(seq, "MII Status: %s\n", - (slave->link == BOND_LINK_UP) ? "up" : "down"); + seq_printf(seq, "MII Status: %s\n", bond_slave_link_status(slave->link)); if (slave->speed == SPEED_UNKNOWN) seq_printf(seq, "Speed: %s\n", "Unknown"); else -- cgit v1.2.3-59-g8ed1b From 31fdc5553b42abd7e29bb7b89f6ba07514eb4763 Mon Sep 17 00:00:00 2001 From: Rémi Denis-Courmont Date: Wed, 13 Jun 2012 22:29:03 +0000 Subject: net: remove my future former mail address MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Signed-off-by: Rémi Denis-Courmont Cc: Sakari Ailus Signed-off-by: David S. Miller --- include/net/phonet/gprs.h | 2 +- net/caif/caif_dev.c | 3 +-- net/phonet/af_phonet.c | 4 ++-- net/phonet/datagram.c | 4 ++-- net/phonet/pep-gprs.c | 2 +- net/phonet/pep.c | 2 +- net/phonet/pn_dev.c | 4 ++-- net/phonet/pn_netlink.c | 4 ++-- net/phonet/socket.c | 4 ++-- net/phonet/sysctl.c | 2 +- 10 files changed, 15 insertions(+), 16 deletions(-) diff --git a/include/net/phonet/gprs.h b/include/net/phonet/gprs.h index 928daf595beb..bcd525e39a0b 100644 --- a/include/net/phonet/gprs.h +++ b/include/net/phonet/gprs.h @@ -5,7 +5,7 @@ * * Copyright (C) 2008 Nokia Corporation. * - * Author: Rémi Denis-Courmont + * Author: Rémi Denis-Courmont * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c index aa6f716524fd..554b31289607 100644 --- a/net/caif/caif_dev.c +++ b/net/caif/caif_dev.c @@ -4,8 +4,7 @@ * Author: Sjur Brendeland/sjur.brandeland@stericsson.com * License terms: GNU General Public License (GPL) version 2 * - * Borrowed heavily from file: pn_dev.c. Thanks to - * Remi Denis-Courmont + * Borrowed heavily from file: pn_dev.c. Thanks to Remi Denis-Courmont * and Sakari Ailus */ diff --git a/net/phonet/af_phonet.c b/net/phonet/af_phonet.c index 779ce4ff92ec..5a940dbd74a3 100644 --- a/net/phonet/af_phonet.c +++ b/net/phonet/af_phonet.c @@ -5,8 +5,8 @@ * * Copyright (C) 2008 Nokia Corporation. * - * Contact: Remi Denis-Courmont - * Original author: Sakari Ailus + * Authors: Sakari Ailus + * Rémi Denis-Courmont * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License diff --git a/net/phonet/datagram.c b/net/phonet/datagram.c index bf35b4e1a14c..12c30f3e643e 100644 --- a/net/phonet/datagram.c +++ b/net/phonet/datagram.c @@ -5,8 +5,8 @@ * * Copyright (C) 2008 Nokia Corporation. * - * Contact: Remi Denis-Courmont - * Original author: Sakari Ailus + * Authors: Sakari Ailus + * Rémi Denis-Courmont * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License diff --git a/net/phonet/pep-gprs.c b/net/phonet/pep-gprs.c index d01208968c83..a2fba7edfd1f 100644 --- a/net/phonet/pep-gprs.c +++ b/net/phonet/pep-gprs.c @@ -5,7 +5,7 @@ * * Copyright (C) 2008 Nokia Corporation. * - * Author: Rémi Denis-Courmont + * Author: Rémi Denis-Courmont * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License diff --git a/net/phonet/pep.c b/net/phonet/pep.c index 9dd4f926f7d1..576f22c9c76e 100644 --- a/net/phonet/pep.c +++ b/net/phonet/pep.c @@ -5,7 +5,7 @@ * * Copyright (C) 2008 Nokia Corporation. * - * Author: Rémi Denis-Courmont + * Author: Rémi Denis-Courmont * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License diff --git a/net/phonet/pn_dev.c b/net/phonet/pn_dev.c index 36f75a9e2c3d..5bf6341e2dd4 100644 --- a/net/phonet/pn_dev.c +++ b/net/phonet/pn_dev.c @@ -5,8 +5,8 @@ * * Copyright (C) 2008 Nokia Corporation. * - * Contact: Remi Denis-Courmont - * Original author: Sakari Ailus + * Authors: Sakari Ailus + * Rémi Denis-Courmont * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License diff --git a/net/phonet/pn_netlink.c b/net/phonet/pn_netlink.c index cfdf135fcd69..7dd762a464e5 100644 --- a/net/phonet/pn_netlink.c +++ b/net/phonet/pn_netlink.c @@ -5,8 +5,8 @@ * * Copyright (C) 2008 Nokia Corporation. * - * Contact: Remi Denis-Courmont - * Original author: Sakari Ailus + * Authors: Sakari Ailus + * Remi Denis-Courmont * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License diff --git a/net/phonet/socket.c b/net/phonet/socket.c index 89cfa9ce4939..0acc943f713a 100644 --- a/net/phonet/socket.c +++ b/net/phonet/socket.c @@ -5,8 +5,8 @@ * * Copyright (C) 2008 Nokia Corporation. * - * Contact: Remi Denis-Courmont - * Original author: Sakari Ailus + * Authors: Sakari Ailus + * Rémi Denis-Courmont * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License diff --git a/net/phonet/sysctl.c b/net/phonet/sysctl.c index 696348fd31a1..d6bbbbd0af18 100644 --- a/net/phonet/sysctl.c +++ b/net/phonet/sysctl.c @@ -5,7 +5,7 @@ * * Copyright (C) 2008 Nokia Corporation. * - * Contact: Remi Denis-Courmont + * Author: Rémi Denis-Courmont * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License -- cgit v1.2.3-59-g8ed1b From 7fb75db139965c1955bf6bbde62a357f9843286d Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Sun, 17 Jun 2012 13:44:27 +0200 Subject: ALSA: snd-usb: fix sync pipe check Fix a bogus sanity check for sync pipe in pcm.c. This flaw was introduced during the streaming logic refactorization. While at it, improve the error messages that are generated in such cases. Signed-off-by: Daniel Mack Reported-and-tested-by: Signed-off-by: Takashi Iwai --- sound/usb/pcm.c | 18 +++++++++++------- 1 file changed, 11 insertions(+), 7 deletions(-) diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index cdf8b7601973..fc7ce7c1b4fa 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -354,17 +354,21 @@ static int set_format(struct snd_usb_substream *subs, struct audioformat *fmt) (get_endpoint(alts, 1)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && get_endpoint(alts, 1)->bSynchAddress != 0 && !implicit_fb)) { - snd_printk(KERN_ERR "%d:%d:%d : invalid synch pipe\n", - dev->devnum, fmt->iface, fmt->altsetting); + snd_printk(KERN_ERR "%d:%d:%d : invalid sync pipe. bmAttributes %02x, bLength %d, bSynchAddress %02x\n", + dev->devnum, fmt->iface, fmt->altsetting, + get_endpoint(alts, 1)->bmAttributes, + get_endpoint(alts, 1)->bLength, + get_endpoint(alts, 1)->bSynchAddress); return -EINVAL; } ep = get_endpoint(alts, 1)->bEndpointAddress; - if (get_endpoint(alts, 0)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && + if (!implicit_fb && + get_endpoint(alts, 0)->bLength >= USB_DT_ENDPOINT_AUDIO_SIZE && (( is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress | USB_DIR_IN)) || - (!is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress & ~USB_DIR_IN)) || - ( is_playback && !implicit_fb))) { - snd_printk(KERN_ERR "%d:%d:%d : invalid synch pipe\n", - dev->devnum, fmt->iface, fmt->altsetting); + (!is_playback && ep != (unsigned int)(get_endpoint(alts, 0)->bSynchAddress & ~USB_DIR_IN)))) { + snd_printk(KERN_ERR "%d:%d:%d : invalid sync pipe. is_playback %d, ep %02x, bSynchAddress %02x\n", + dev->devnum, fmt->iface, fmt->altsetting, + is_playback, ep, get_endpoint(alts, 0)->bSynchAddress); return -EINVAL; } -- cgit v1.2.3-59-g8ed1b From afe25967ecf66b38d94d374f0fcb5f4add458a4c Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Sat, 16 Jun 2012 16:58:04 +0200 Subject: ALSA: snd-usb: make snd_usb_substream_capture_trigger static Signed-off-by: Daniel Mack Signed-off-by: Takashi Iwai --- sound/usb/pcm.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index fc7ce7c1b4fa..54607f8c4f66 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -1151,7 +1151,8 @@ static int snd_usb_substream_playback_trigger(struct snd_pcm_substream *substrea return -EINVAL; } -int snd_usb_substream_capture_trigger(struct snd_pcm_substream *substream, int cmd) +static int snd_usb_substream_capture_trigger(struct snd_pcm_substream *substream, + int cmd) { int err; struct snd_usb_substream *subs = substream->runtime->private_data; -- cgit v1.2.3-59-g8ed1b From b4a91cf05c33d4ab5b2b3738a257a3fe49b462bd Mon Sep 17 00:00:00 2001 From: Dylan Reid Date: Fri, 15 Jun 2012 19:36:23 -0700 Subject: ALSA: hda - Handle open while transitioning to D3. This addresses an issue encountered when a pcm is opened while transitioning to low power state (codec->power_on == 1 && codec->power_transition == -1). Add snd_pcm_power_up_d3wait to hda_codec. This function is used to power up from azx_open as opposed to snd_hda_power_up used from codec_exec_verb. When powering up from azx_open, wait for pending power downs to complete, avoiding the power up continuing in parallel with the power down on the work queue. The specific issue seen was with the CS4210 codec, it powers off the ADC and DAC nid in its suspend handler. If it is re-opened before the ~100ms power down process completes, the ADC and DAC nid are initialized while powered down and audio is lost until another suspend/resume cycle. Signed-off-by: Dylan Reid Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 46 +++++++++++++++++++++++++++++++++++++--------- sound/pci/hda/hda_codec.h | 2 ++ sound/pci/hda/hda_intel.c | 2 +- 3 files changed, 40 insertions(+), 10 deletions(-) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 41ca803a1fff..7504e62188d6 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -4393,20 +4393,19 @@ void snd_hda_update_power_acct(struct hda_codec *codec) codec->power_jiffies += delta; } -/** - * snd_hda_power_up - Power-up the codec - * @codec: HD-audio codec - * - * Increment the power-up counter and power up the hardware really when - * not turned on yet. - */ -void snd_hda_power_up(struct hda_codec *codec) +/* Transition to powered up, if wait_power_down then wait for a pending + * transition to D3 to complete. A pending D3 transition is indicated + * with power_transition == -1. */ +static void __snd_hda_power_up(struct hda_codec *codec, bool wait_power_down) { struct hda_bus *bus = codec->bus; spin_lock(&codec->power_lock); codec->power_count++; - if (codec->power_on || codec->power_transition > 0) { + /* Return if power_on or transitioning to power_on, unless currently + * powering down. */ + if ((codec->power_on || codec->power_transition > 0) && + !(wait_power_down && codec->power_transition < 0)) { spin_unlock(&codec->power_lock); return; } @@ -4430,8 +4429,37 @@ void snd_hda_power_up(struct hda_codec *codec) codec->power_transition = 0; spin_unlock(&codec->power_lock); } + +/** + * snd_hda_power_up - Power-up the codec + * @codec: HD-audio codec + * + * Increment the power-up counter and power up the hardware really when + * not turned on yet. + */ +void snd_hda_power_up(struct hda_codec *codec) +{ + __snd_hda_power_up(codec, false); +} EXPORT_SYMBOL_HDA(snd_hda_power_up); +/** + * snd_hda_power_up_d3wait - Power-up the codec after waiting for any pending + * D3 transition to complete. This differs from snd_hda_power_up() when + * power_transition == -1. snd_hda_power_up sees this case as a nop, + * snd_hda_power_up_d3wait waits for the D3 transition to complete then powers + * back up. + * @codec: HD-audio codec + * + * Cancel any power down operation hapenning on the work queue, then power up. + */ +void snd_hda_power_up_d3wait(struct hda_codec *codec) +{ + /* This will cancel and wait for pending power_work to complete. */ + __snd_hda_power_up(codec, true); +} +EXPORT_SYMBOL_HDA(snd_hda_power_up_d3wait); + #define power_save(codec) \ ((codec)->bus->power_save ? *(codec)->bus->power_save : 0) diff --git a/sound/pci/hda/hda_codec.h b/sound/pci/hda/hda_codec.h index 4fc3960c8591..2fdaadbb4326 100644 --- a/sound/pci/hda/hda_codec.h +++ b/sound/pci/hda/hda_codec.h @@ -1056,10 +1056,12 @@ const char *snd_hda_get_jack_location(u32 cfg); */ #ifdef CONFIG_SND_HDA_POWER_SAVE void snd_hda_power_up(struct hda_codec *codec); +void snd_hda_power_up_d3wait(struct hda_codec *codec); void snd_hda_power_down(struct hda_codec *codec); void snd_hda_update_power_acct(struct hda_codec *codec); #else static inline void snd_hda_power_up(struct hda_codec *codec) {} +static inline void snd_hda_power_up_d3wait(struct hda_codec *codec) {} static inline void snd_hda_power_down(struct hda_codec *codec) {} #endif diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 02763827dde0..7757536b9d5f 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -1766,7 +1766,7 @@ static int azx_pcm_open(struct snd_pcm_substream *substream) buff_step); snd_pcm_hw_constraint_step(runtime, 0, SNDRV_PCM_HW_PARAM_PERIOD_BYTES, buff_step); - snd_hda_power_up(apcm->codec); + snd_hda_power_up_d3wait(apcm->codec); err = hinfo->ops.open(hinfo, apcm->codec, substream); if (err < 0) { azx_release_device(azx_dev); -- cgit v1.2.3-59-g8ed1b From 0b1d8e09089b69ac2e8be203fb28cd07cfe035b2 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Sat, 16 Jun 2012 16:58:36 +0200 Subject: ALSA: 6fire: use NULL instead of 0 for pointer assignment Signed-off-by: Daniel Mack Cc: Torsten Schenk Signed-off-by: Takashi Iwai --- sound/usb/6fire/firmware.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/sound/usb/6fire/firmware.c b/sound/usb/6fire/firmware.c index 6f9715ab32fe..56ad923bf6b5 100644 --- a/sound/usb/6fire/firmware.c +++ b/sound/usb/6fire/firmware.c @@ -209,7 +209,7 @@ static int usb6fire_fw_ezusb_upload( int ret; u8 data; struct usb_device *device = interface_to_usbdev(intf); - const struct firmware *fw = 0; + const struct firmware *fw = NULL; struct ihex_record *rec = kmalloc(sizeof(struct ihex_record), GFP_KERNEL); -- cgit v1.2.3-59-g8ed1b From c15acff337ca5c2f101fee99f36c89d47839d387 Mon Sep 17 00:00:00 2001 From: Wanpeng Li Date: Tue, 12 Jun 2012 12:53:21 +0800 Subject: x86: Fix kernel-doc warnings Signed-off-by: Wanpeng Li Cc: Peter Zijlstra Cc: Jason Wessel Cc: Jan Kiszka Cc: Gavin Shan Cc: Wanpeng Li Signed-off-by: Ingo Molnar --- arch/x86/kernel/kgdb.c | 8 ++++---- arch/x86/lib/csum-wrappers_64.c | 2 +- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/x86/kernel/kgdb.c b/arch/x86/kernel/kgdb.c index 8bfb6146f753..3f61904365cf 100644 --- a/arch/x86/kernel/kgdb.c +++ b/arch/x86/kernel/kgdb.c @@ -444,12 +444,12 @@ void kgdb_roundup_cpus(unsigned long flags) /** * kgdb_arch_handle_exception - Handle architecture specific GDB packets. - * @vector: The error vector of the exception that happened. + * @e_vector: The error vector of the exception that happened. * @signo: The signal number of the exception that happened. * @err_code: The error code of the exception that happened. - * @remcom_in_buffer: The buffer of the packet we have read. - * @remcom_out_buffer: The buffer of %BUFMAX bytes to write a packet into. - * @regs: The &struct pt_regs of the current process. + * @remcomInBuffer: The buffer of the packet we have read. + * @remcomOutBuffer: The buffer of %BUFMAX bytes to write a packet into. + * @linux_regs: The &struct pt_regs of the current process. * * This function MUST handle the 'c' and 's' command packets, * as well packets to set / remove a hardware breakpoint, if used. diff --git a/arch/x86/lib/csum-wrappers_64.c b/arch/x86/lib/csum-wrappers_64.c index 459b58a8a15c..25b7ae8d058a 100644 --- a/arch/x86/lib/csum-wrappers_64.c +++ b/arch/x86/lib/csum-wrappers_64.c @@ -115,7 +115,7 @@ EXPORT_SYMBOL(csum_partial_copy_to_user); * @src: source address * @dst: destination address * @len: number of bytes to be copied. - * @isum: initial sum that is added into the result (32bit unfolded) + * @sum: initial sum that is added into the result (32bit unfolded) * * Returns an 32bit unfolded checksum of the buffer. */ -- cgit v1.2.3-59-g8ed1b From 9c5da09d266ca9b32eb16cf940f8161d949c2fe5 Mon Sep 17 00:00:00 2001 From: Salman Qazi Date: Thu, 14 Jun 2012 15:31:09 -0700 Subject: perf: Use css_tryget() to avoid propping up css refcount An rmdir pushes css's ref count to zero. However, if the associated directory is open at the time, the dentry ref count is non-zero. If the fd for this directory is then passed into perf_event_open, it does a css_get(). This bounces the ref count back up from zero. This is a problem by itself. But what makes it turn into a crash is the fact that we end up doing an extra dput, since we perform a dput when css_put sees the ref count go down to zero. css_tryget() does not fall into that trap. So, we use that instead. Reproduction test-case for the bug: #include #include #include #include #include #include #include #include #include #define PERF_FLAG_PID_CGROUP (1U << 2) int perf_event_open(struct perf_event_attr *hw_event_uptr, pid_t pid, int cpu, int group_fd, unsigned long flags) { return syscall(__NR_perf_event_open,hw_event_uptr, pid, cpu, group_fd, flags); } /* * Directly poke at the perf_event bug, since it's proving hard to repro * depending on where in the kernel tree. what moved? */ int main(int argc, char **argv) { int fd; struct perf_event_attr attr; memset(&attr, 0, sizeof(attr)); attr.exclude_kernel = 1; attr.size = sizeof(attr); mkdir("/dev/cgroup/perf_event/blah", 0777); fd = open("/dev/cgroup/perf_event/blah", O_RDONLY); perror("open"); rmdir("/dev/cgroup/perf_event/blah"); sleep(2); perf_event_open(&attr, fd, 0, -1, PERF_FLAG_PID_CGROUP); perror("perf_event_open"); close(fd); return 0; } Signed-off-by: Salman Qazi Signed-off-by: Peter Zijlstra Acked-by: Tejun Heo Link: http://lkml.kernel.org/r/20120614223108.1025.2503.stgit@dungbeetle.mtv.corp.google.com Signed-off-by: Ingo Molnar --- kernel/events/core.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/kernel/events/core.c b/kernel/events/core.c index f85c0154b333..d7d71d6ec972 100644 --- a/kernel/events/core.c +++ b/kernel/events/core.c @@ -253,9 +253,9 @@ perf_cgroup_match(struct perf_event *event) return !event->cgrp || event->cgrp == cpuctx->cgrp; } -static inline void perf_get_cgroup(struct perf_event *event) +static inline bool perf_tryget_cgroup(struct perf_event *event) { - css_get(&event->cgrp->css); + return css_tryget(&event->cgrp->css); } static inline void perf_put_cgroup(struct perf_event *event) @@ -484,7 +484,11 @@ static inline int perf_cgroup_connect(int fd, struct perf_event *event, event->cgrp = cgrp; /* must be done before we fput() the file */ - perf_get_cgroup(event); + if (!perf_tryget_cgroup(event)) { + event->cgrp = NULL; + ret = -ENOENT; + goto out; + } /* * all events in a group must monitor -- cgit v1.2.3-59-g8ed1b From 10aa5a35e34fb00a2dd814447199f08756eb307b Mon Sep 17 00:00:00 2001 From: Russell King Date: Mon, 18 Jun 2012 11:27:04 +0100 Subject: SPI: fix over-eager devm_xxx() conversion 1a77b127ae (OMAP : SPI : use devm_* functions) converted the SPI device controller state to use devm_kzalloc(). Unfortunately, this is used against an unbound struct device, which results in the following when the device is bound to its driver: ------------[ cut here ]------------ WARNING: at /home/rmk/git/linux-rmk/drivers/base/dd.c:257 driver_probe_device+0x78/0x21c() Modules linked in: Backtrace: [] (dump_backtrace+0x0/0x10c) from [] (dump_stack+0x18/0x1c) r7:00000000 r6:c01ff28c r5:c040050c r4:00000101 [] (dump_stack+0x0/0x1c) from [] (warn_slowpath_common+0x58/0x70) [] (warn_slowpath_common+0x0/0x70) from [] (warn_slowpath_null+0x24/0x2c) [] (warn_slowpath_null+0x0/0x2c) from [] (driver_probe_device+0x78/0x21c) [] (driver_probe_device+0x0/0x21c) from [] (__driver_attach+0x6c/0x90) [] (__driver_attach+0x0/0x90) from [] (bus_for_each_dev+0x58/0x98) [] (bus_for_each_dev+0x0/0x98) from [] (driver_attach+0x20/0x28) [] (driver_attach+0x0/0x28) from [] (bus_add_driver+0xb4/0x230) [] (bus_add_driver+0x0/0x230) from [] (driver_register+0xac/0x138) [] (driver_register+0x0/0x138) from [] (spi_register_driver+0x4c/0x60) [] (spi_register_driver+0x0/0x60) from [] (ks8851_init+0x14/0x1c) [] (ks8851_init+0x0/0x1c) from [] (do_one_initcall+0x9c/0x164) [] (do_one_initcall+0x0/0x164) from [] (kernel_init+0x128/0x210) [] (kernel_init+0x0/0x210) from [] (do_exit+0x0/0x72c) ---[ end trace 4dcda79f5e89dd84 ]--- ks8851 spi1.0: message enable is 0 ks8851 spi1.0: eth0: revision 0, MAC 08:00:28:01:4d:c6, IRQ 194, has EEPROM Fix this by partially reverting the original commit. Signed-off-by: Russell King --- drivers/spi/spi-omap2-mcspi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/spi/spi-omap2-mcspi.c b/drivers/spi/spi-omap2-mcspi.c index 46ef5fe51db5..0c73dd4f43a0 100644 --- a/drivers/spi/spi-omap2-mcspi.c +++ b/drivers/spi/spi-omap2-mcspi.c @@ -801,7 +801,7 @@ static int omap2_mcspi_setup(struct spi_device *spi) mcspi_dma = &mcspi->dma_channels[spi->chip_select]; if (!cs) { - cs = devm_kzalloc(&spi->dev , sizeof *cs, GFP_KERNEL); + cs = kzalloc(sizeof *cs, GFP_KERNEL); if (!cs) return -ENOMEM; cs->base = mcspi->base + spi->chip_select * 0x14; @@ -842,6 +842,7 @@ static void omap2_mcspi_cleanup(struct spi_device *spi) cs = spi->controller_state; list_del(&cs->node); + kfree(cs); } if (spi->chip_select < spi->master->num_chipselect) { -- cgit v1.2.3-59-g8ed1b From 1cfb7271076a265b7c2cbbf9cf5c2ae060a24385 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 9 Jun 2012 12:08:23 +0300 Subject: UBIFS: fix assertion The asserts here never check anything because it uses '|' instead of '&'. Now if the flags are not set it prints a warning a a stack trace. Signed-off-by: Dan Carpenter Signed-off-by: Artem Bityutskiy --- fs/ubifs/find.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ubifs/find.c b/fs/ubifs/find.c index 2559d174e004..28ec13af28d9 100644 --- a/fs/ubifs/find.c +++ b/fs/ubifs/find.c @@ -939,8 +939,8 @@ static int find_dirtiest_idx_leb(struct ubifs_info *c) } dbg_find("LEB %d, dirty %d and free %d flags %#x", lp->lnum, lp->dirty, lp->free, lp->flags); - ubifs_assert(lp->flags | LPROPS_TAKEN); - ubifs_assert(lp->flags | LPROPS_INDEX); + ubifs_assert(lp->flags & LPROPS_TAKEN); + ubifs_assert(lp->flags & LPROPS_INDEX); return lnum; } -- cgit v1.2.3-59-g8ed1b From 70c276a6abdb1a466a9026da631c396fee2984bd Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Fri, 25 May 2012 18:06:33 -0300 Subject: [media] Revert "[media] media: mx2_camera: Fix mbus format handling" This reverts commit d509835e32bd761a2b7b446034a273da568e5573. That commit breaks support for the generic pass-through mode in the driver for formats, not natively supported by it. Besides due to a merge conflict it also breaks driver compilation: drivers/media/video/mx2_camera.c: In function 'mx2_camera_set_bus_param': drivers/media/video/mx2_camera.c:937: error: 'pixfmt' undeclared (first use in this function) drivers/media/video/mx2_camera.c:937: error: (Each undeclared identifier is reported only once drivers/media/video/mx2_camera.c:937: error: for each function it appears in.) Signed-off-by: Guennadi Liakhovetski Cc: Javier Martin Signed-off-by: Mauro Carvalho Chehab --- arch/arm/plat-mxc/include/mach/mx2_cam.h | 2 ++ drivers/media/video/mx2_camera.c | 52 +++----------------------------- 2 files changed, 7 insertions(+), 47 deletions(-) diff --git a/arch/arm/plat-mxc/include/mach/mx2_cam.h b/arch/arm/plat-mxc/include/mach/mx2_cam.h index 7ded6f1f74bc..3c080a32dbf5 100644 --- a/arch/arm/plat-mxc/include/mach/mx2_cam.h +++ b/arch/arm/plat-mxc/include/mach/mx2_cam.h @@ -23,6 +23,7 @@ #ifndef __MACH_MX2_CAM_H_ #define __MACH_MX2_CAM_H_ +#define MX2_CAMERA_SWAP16 (1 << 0) #define MX2_CAMERA_EXT_VSYNC (1 << 1) #define MX2_CAMERA_CCIR (1 << 2) #define MX2_CAMERA_CCIR_INTERLACE (1 << 3) @@ -30,6 +31,7 @@ #define MX2_CAMERA_GATED_CLOCK (1 << 5) #define MX2_CAMERA_INV_DATA (1 << 6) #define MX2_CAMERA_PCLK_SAMPLE_RISING (1 << 7) +#define MX2_CAMERA_PACK_DIR_MSB (1 << 8) /** * struct mx2_camera_platform_data - optional platform data for mx2_camera diff --git a/drivers/media/video/mx2_camera.c b/drivers/media/video/mx2_camera.c index ded26b7286fa..41f9a254b245 100644 --- a/drivers/media/video/mx2_camera.c +++ b/drivers/media/video/mx2_camera.c @@ -345,19 +345,6 @@ static struct mx2_fmt_cfg mx27_emma_prp_table[] = { PRP_INTR_CH2OVF, } }, - { - .in_fmt = V4L2_MBUS_FMT_UYVY8_2X8, - .out_fmt = V4L2_PIX_FMT_YUV420, - .cfg = { - .channel = 2, - .in_fmt = PRP_CNTL_DATA_IN_YUV422, - .out_fmt = PRP_CNTL_CH2_OUT_YUV420, - .src_pixel = 0x22000888, /* YUV422 (YUYV) */ - .irq_flags = PRP_INTR_RDERR | PRP_INTR_CH2WERR | - PRP_INTR_CH2FC | PRP_INTR_LBOVF | - PRP_INTR_CH2OVF, - } - }, }; static struct mx2_fmt_cfg *mx27_emma_prp_get_format( @@ -984,7 +971,6 @@ static int mx2_camera_set_bus_param(struct soc_camera_device *icd) struct soc_camera_host *ici = to_soc_camera_host(icd->parent); struct mx2_camera_dev *pcdev = ici->priv; struct v4l2_mbus_config cfg = {.type = V4L2_MBUS_PARALLEL,}; - const struct soc_camera_format_xlate *xlate; unsigned long common_flags; int ret; int bytesperline; @@ -1029,31 +1015,14 @@ static int mx2_camera_set_bus_param(struct soc_camera_device *icd) return ret; } - xlate = soc_camera_xlate_by_fourcc(icd, pixfmt); - if (!xlate) { - dev_warn(icd->parent, "Format %x not found\n", pixfmt); - return -EINVAL; - } - - if (xlate->code == V4L2_MBUS_FMT_YUYV8_2X8) { - csicr1 |= CSICR1_PACK_DIR; - csicr1 &= ~CSICR1_SWAP16_EN; - dev_dbg(icd->parent, "already yuyv format, don't convert\n"); - } else if (xlate->code == V4L2_MBUS_FMT_UYVY8_2X8) { - csicr1 &= ~CSICR1_PACK_DIR; - csicr1 |= CSICR1_SWAP16_EN; - dev_dbg(icd->parent, "convert uyvy mbus format into yuyv\n"); - } else { - dev_warn(icd->parent, "mbus format not supported\n"); - return -EINVAL; - } - if (common_flags & V4L2_MBUS_PCLK_SAMPLE_RISING) csicr1 |= CSICR1_REDGE; if (common_flags & V4L2_MBUS_VSYNC_ACTIVE_HIGH) csicr1 |= CSICR1_SOF_POL; if (common_flags & V4L2_MBUS_HSYNC_ACTIVE_HIGH) csicr1 |= CSICR1_HSYNC_POL; + if (pcdev->platform_flags & MX2_CAMERA_SWAP16) + csicr1 |= CSICR1_SWAP16_EN; if (pcdev->platform_flags & MX2_CAMERA_EXT_VSYNC) csicr1 |= CSICR1_EXT_VSYNC; if (pcdev->platform_flags & MX2_CAMERA_CCIR) @@ -1064,6 +1033,8 @@ static int mx2_camera_set_bus_param(struct soc_camera_device *icd) csicr1 |= CSICR1_GCLK_MODE; if (pcdev->platform_flags & MX2_CAMERA_INV_DATA) csicr1 |= CSICR1_INV_DATA; + if (pcdev->platform_flags & MX2_CAMERA_PACK_DIR_MSB) + csicr1 |= CSICR1_PACK_DIR; pcdev->csicr1 = csicr1; @@ -1138,8 +1109,7 @@ static int mx2_camera_get_formats(struct soc_camera_device *icd, return 0; } - if (code == V4L2_MBUS_FMT_YUYV8_2X8 || - code == V4L2_MBUS_FMT_UYVY8_2X8) { + if (code == V4L2_MBUS_FMT_YUYV8_2X8) { formats++; if (xlate) { /* @@ -1155,18 +1125,6 @@ static int mx2_camera_get_formats(struct soc_camera_device *icd, } } - if (code == V4L2_MBUS_FMT_UYVY8_2X8) { - formats++; - if (xlate) { - xlate->host_fmt = - soc_mbus_get_fmtdesc(V4L2_MBUS_FMT_YUYV8_2X8); - xlate->code = code; - dev_dbg(dev, "Providing host format %s for sensor code %d\n", - xlate->host_fmt->name, code); - xlate++; - } - } - /* Generic pass-trough */ formats++; if (xlate) { -- cgit v1.2.3-59-g8ed1b From 2a4c8994eeef50796015f8a2005e4a75c1929166 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Thu, 14 Jun 2012 13:08:38 -0400 Subject: NFSv4.1: Fix umount when filelayout DS is also the MDS Currently there is a 'chicken and egg' issue when the DS is also the mounted MDS. The nfs_match_client() reference from nfs4_set_ds_client bumps the cl_count, the nfs_client is not freed at umount, and nfs4_deviceid_purge_client is not called to dereference the MDS usage of a deviceid which holds a reference to the DS nfs_client. The result is the umount program returns, but the nfs_client is not freed, and the cl_session hearbeat continues. The MDS (and all other nfs mounts) lose their last nfs_client reference in nfs_free_server when the last nfs_server (fsid) is umounted. The file layout DS lose their last nfs_client reference in destroy_ds when the last deviceid referencing the data server is put and destroy_ds is called. This is triggered by a call to nfs4_deviceid_purge_client which removes references to a pNFS deviceid used by an MDS mount. The fix is to track how many pnfs enabled filesystems are mounted from this server, and then to purge the device id cache once that count reaches zero. Reported-by: Jorge Mora Reported-by: Andy Adamson Signed-off-by: Trond Myklebust --- fs/nfs/client.c | 1 - fs/nfs/pnfs.c | 5 +++++ include/linux/nfs_fs_sb.h | 1 + 3 files changed, 6 insertions(+), 1 deletion(-) diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 17ba6b995659..f005b5bebdc7 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -207,7 +207,6 @@ error_0: static void nfs4_shutdown_session(struct nfs_client *clp) { if (nfs4_has_session(clp)) { - nfs4_deviceid_purge_client(clp); nfs4_destroy_session(clp->cl_session); nfs4_destroy_clientid(clp); } diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index b8323aa7b543..bdf7e52943c8 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -80,6 +80,9 @@ unset_pnfs_layoutdriver(struct nfs_server *nfss) if (nfss->pnfs_curr_ld) { if (nfss->pnfs_curr_ld->clear_layoutdriver) nfss->pnfs_curr_ld->clear_layoutdriver(nfss); + /* Decrement the MDS count. Purge the deviceid cache if zero */ + if (atomic_dec_and_test(&nfss->nfs_client->cl_mds_count)) + nfs4_deviceid_purge_client(nfss->nfs_client); module_put(nfss->pnfs_curr_ld->owner); } nfss->pnfs_curr_ld = NULL; @@ -127,6 +130,8 @@ set_pnfs_layoutdriver(struct nfs_server *server, const struct nfs_fh *mntfh, module_put(ld_type->owner); goto out_no_driver; } + /* Bump the MDS count */ + atomic_inc(&server->nfs_client->cl_mds_count); dprintk("%s: pNFS module for %u set\n", __func__, id); return; diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h index fbb78fb09bd2..f58325a1d8fb 100644 --- a/include/linux/nfs_fs_sb.h +++ b/include/linux/nfs_fs_sb.h @@ -25,6 +25,7 @@ struct nfs41_impl_id; */ struct nfs_client { atomic_t cl_count; + atomic_t cl_mds_count; int cl_cons_state; /* current construction state (-ve: init error) */ #define NFS_CS_READY 0 /* ready to be used */ #define NFS_CS_INITING 1 /* busy initialising */ -- cgit v1.2.3-59-g8ed1b From 93b3cca1ccd30b1ad290951a3fc7c10c73db7313 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Thu, 14 Jun 2012 10:54:28 -0400 Subject: ftrace: Make all inline tags also include notrace Commit 5963e317b1e9d2a ("ftrace/x86: Do not change stacks in DEBUG when calling lockdep") prevented lockdep calls from the int3 breakpoint handler from reseting the stack if a function that was called was in the process of being converted for tracing and had a breakpoint on it. The idea is, before calling the lockdep code, do a load_idt() to the special IDT that kept the breakpoint stack from reseting. This worked well as a quick fix for this kernel release, until a certain config caused a lockup in the function tracer start up tests. Investigating it, I found that the load_idt that was used to prevent the int3 from changing stacks was itself being traced! Even though the config had CONFIG_OPTIMIZE_INLINING disabled, and all 'inline' tags were set to always inline, there were still cases that it did not inline! This was caused by CONFIG_PARAVIRT_GUEST, where it would add a pointer to the native_load_idt() which made that function to be traced. Commit 45959ee7aa645815a ("ftrace: Do not function trace inlined functions") only touched the 'inline' tags when CONFIG_OPMITIZE_INLINING was enabled. PARAVIRT_GUEST shows that this was not enough and we need to also mark always_inline with notrace as well. Reported-by: Fengguang Wu Tested-by: Fengguang Wu Signed-off-by: Steven Rostedt --- include/linux/compiler-gcc.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h index e5834aa24b9e..6a6d7aefe12d 100644 --- a/include/linux/compiler-gcc.h +++ b/include/linux/compiler-gcc.h @@ -47,9 +47,9 @@ */ #if !defined(CONFIG_ARCH_SUPPORTS_OPTIMIZED_INLINING) || \ !defined(CONFIG_OPTIMIZE_INLINING) || (__GNUC__ < 4) -# define inline inline __attribute__((always_inline)) -# define __inline__ __inline__ __attribute__((always_inline)) -# define __inline __inline __attribute__((always_inline)) +# define inline inline __attribute__((always_inline)) notrace +# define __inline__ __inline__ __attribute__((always_inline)) notrace +# define __inline __inline __attribute__((always_inline)) notrace #else /* A lot of inline functions can cause havoc with function tracing */ # define inline inline notrace -- cgit v1.2.3-59-g8ed1b From ac6e4c1560f8d3d18e6ba265d84ff03810496f4f Mon Sep 17 00:00:00 2001 From: Sasha Levin Date: Sat, 26 May 2012 15:25:26 -0300 Subject: [media] USB: Staging: media: lirc: initialize spinlocks before usage Initialize the spinlock for each hardware time. Signed-off-by: Sasha Levin Signed-off-by: Mauro Carvalho Chehab --- drivers/staging/media/lirc/lirc_serial.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/staging/media/lirc/lirc_serial.c b/drivers/staging/media/lirc/lirc_serial.c index 3295ea63f3eb..97ef67036e3f 100644 --- a/drivers/staging/media/lirc/lirc_serial.c +++ b/drivers/staging/media/lirc/lirc_serial.c @@ -129,6 +129,7 @@ static void send_space_homebrew(long length); static struct lirc_serial hardware[] = { [LIRC_HOMEBREW] = { + .lock = __SPIN_LOCK_UNLOCKED(hardware[LIRC_HOMEBREW].lock), .signal_pin = UART_MSR_DCD, .signal_pin_change = UART_MSR_DDCD, .on = (UART_MCR_RTS | UART_MCR_OUT2 | UART_MCR_DTR), @@ -145,6 +146,7 @@ static struct lirc_serial hardware[] = { }, [LIRC_IRDEO] = { + .lock = __SPIN_LOCK_UNLOCKED(hardware[LIRC_IRDEO].lock), .signal_pin = UART_MSR_DSR, .signal_pin_change = UART_MSR_DDSR, .on = UART_MCR_OUT2, @@ -156,6 +158,7 @@ static struct lirc_serial hardware[] = { }, [LIRC_IRDEO_REMOTE] = { + .lock = __SPIN_LOCK_UNLOCKED(hardware[LIRC_IRDEO_REMOTE].lock), .signal_pin = UART_MSR_DSR, .signal_pin_change = UART_MSR_DDSR, .on = (UART_MCR_RTS | UART_MCR_DTR | UART_MCR_OUT2), @@ -167,6 +170,7 @@ static struct lirc_serial hardware[] = { }, [LIRC_ANIMAX] = { + .lock = __SPIN_LOCK_UNLOCKED(hardware[LIRC_ANIMAX].lock), .signal_pin = UART_MSR_DCD, .signal_pin_change = UART_MSR_DDCD, .on = 0, @@ -177,6 +181,7 @@ static struct lirc_serial hardware[] = { }, [LIRC_IGOR] = { + .lock = __SPIN_LOCK_UNLOCKED(hardware[LIRC_IGOR].lock), .signal_pin = UART_MSR_DSR, .signal_pin_change = UART_MSR_DDSR, .on = (UART_MCR_RTS | UART_MCR_OUT2 | UART_MCR_DTR), @@ -201,6 +206,7 @@ static struct lirc_serial hardware[] = { * See also http://www.nslu2-linux.org for this device */ [LIRC_NSLU2] = { + .lock = __SPIN_LOCK_UNLOCKED(hardware[LIRC_NSLU2].lock), .signal_pin = UART_MSR_CTS, .signal_pin_change = UART_MSR_DCTS, .on = (UART_MCR_RTS | UART_MCR_OUT2 | UART_MCR_DTR), -- cgit v1.2.3-59-g8ed1b From bdca5036332311bea183dc628c69e3cb50a9369e Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Tue, 29 May 2012 17:19:27 -0300 Subject: [media] em28xx: Add remote control support for Terratec's Cinergy HTC Stick HD The Cinergy HTC Stick HD uses the same remote control as the TerraTec Cinergy XS products. Thus the same keymap could be re-used. Signed-off-by: Martin Blumenstingl Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/em28xx/em28xx-cards.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 20a7e24de6fb..92da7c28b6f0 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -974,6 +974,7 @@ struct em28xx_board em28xx_boards[] = { [EM2884_BOARD_CINERGY_HTC_STICK] = { .name = "Terratec Cinergy HTC Stick", .has_dvb = 1, + .ir_codes = RC_MAP_NEC_TERRATEC_CINERGY_XS, #if 0 .tuner_type = TUNER_PHILIPS_TDA8290, .tuner_addr = 0x41, -- cgit v1.2.3-59-g8ed1b From b83f671566f8a3b9796bed7416d25e07866ff408 Mon Sep 17 00:00:00 2001 From: Martin Blumenstingl Date: Wed, 30 May 2012 15:47:40 -0300 Subject: [media] em28xx: Show a warning if the board does not support remote controls This simply shows a little warning if the board does not have remote control support. This should make it easier for users to see if they have misconfigured their system or if the driver simply does not have rc-support for their card (yet). Signed-off-by: Martin Blumenstingl Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/em28xx/em28xx-input.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/video/em28xx/em28xx-input.c b/drivers/media/video/em28xx/em28xx-input.c index fce5f7680c99..5e30c4f3f248 100644 --- a/drivers/media/video/em28xx/em28xx-input.c +++ b/drivers/media/video/em28xx/em28xx-input.c @@ -527,6 +527,8 @@ static int em28xx_ir_init(struct em28xx *dev) if (dev->board.ir_codes == NULL) { /* No remote control support */ + em28xx_warn("Remote control support is not available for " + "this card.\n"); return 0; } -- cgit v1.2.3-59-g8ed1b From ac852edb47b15900886ba2564eeeb13b3b526e3e Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Thu, 7 Jun 2012 04:54:29 -0400 Subject: hwmon: (applesmc) Limit key length in warning messages Key lookups may call read_smc() with a fixed-length key string, and if the lookup fails, trailing stack content may appear in the kernel log. Fixed with this patch. Signed-off-by: Henrik Rydberg Cc: stable@vger.kernel.org Signed-off-by: Guenter Roeck --- drivers/hwmon/applesmc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c index f082e48ab113..70d62f5bc909 100644 --- a/drivers/hwmon/applesmc.c +++ b/drivers/hwmon/applesmc.c @@ -215,7 +215,7 @@ static int read_smc(u8 cmd, const char *key, u8 *buffer, u8 len) int i; if (send_command(cmd) || send_argument(key)) { - pr_warn("%s: read arg fail\n", key); + pr_warn("%.4s: read arg fail\n", key); return -EIO; } @@ -223,7 +223,7 @@ static int read_smc(u8 cmd, const char *key, u8 *buffer, u8 len) for (i = 0; i < len; i++) { if (__wait_status(0x05)) { - pr_warn("%s: read data fail\n", key); + pr_warn("%.4s: read data fail\n", key); return -EIO; } buffer[i] = inb(APPLESMC_DATA_PORT); -- cgit v1.2.3-59-g8ed1b From 2355375efdf10f43680d420023baa97796bfcdff Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Sat, 2 Jun 2012 10:16:32 -0700 Subject: hwmon: (emc2103) Fix use of an uninitilized variable in error case Fix: emc2103.c: In function set_pwm_enable: emc2103.c:463:12: warning: conf_reg may be used uninitialized in this function by checking the return value from read_u8_from_i2c(). This fixes a real problem, as conf_reg is really uninitialized if read_u8_from_i2c returns an error. Signed-off-by: Guenter Roeck Reviewed-by: Robert Coulson Acked-by: Jean Delvare --- drivers/hwmon/emc2103.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/hwmon/emc2103.c b/drivers/hwmon/emc2103.c index 9691f664c76e..e7d234b59312 100644 --- a/drivers/hwmon/emc2103.c +++ b/drivers/hwmon/emc2103.c @@ -451,11 +451,15 @@ static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *da, data->fan_rpm_control = true; break; default: - mutex_unlock(&data->update_lock); - return -EINVAL; + count = -EINVAL; + goto err; } - read_u8_from_i2c(client, REG_FAN_CONF1, &conf_reg); + result = read_u8_from_i2c(client, REG_FAN_CONF1, &conf_reg); + if (result) { + count = result; + goto err; + } if (data->fan_rpm_control) conf_reg |= 0x80; @@ -463,7 +467,7 @@ static ssize_t set_pwm_enable(struct device *dev, struct device_attribute *da, conf_reg &= ~0x80; i2c_smbus_write_byte_data(client, REG_FAN_CONF1, conf_reg); - +err: mutex_unlock(&data->update_lock); return count; } -- cgit v1.2.3-59-g8ed1b From 9e0304e388ef0e7495b279ce737c24ad56d20b5d Mon Sep 17 00:00:00 2001 From: Chris Metcalf Date: Mon, 18 Jun 2012 13:11:21 -0400 Subject: arch/tile: big-endian: properly bswap instruction bundles when backtracing Instruction bundles are always little-endian, even when running in big-endian mode. I missed this internal bug fix when cherry-picking the big-endian code to return to the community. Signed-off-by: Chris Metcalf --- arch/tile/kernel/backtrace.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/tile/kernel/backtrace.c b/arch/tile/kernel/backtrace.c index 9092ce8aa6b4..f8b74ca83b92 100644 --- a/arch/tile/kernel/backtrace.c +++ b/arch/tile/kernel/backtrace.c @@ -14,6 +14,7 @@ #include #include +#include #include #include #include @@ -336,8 +337,12 @@ static void find_caller_pc_and_caller_sp(CallerLocation *location, bytes_to_prefetch / sizeof(tile_bundle_bits); } - /* Decode the next bundle. */ - bundle.bits = prefetched_bundles[next_bundle++]; + /* + * Decode the next bundle. + * TILE always stores instruction bundles in little-endian + * mode, even when the chip is running in big-endian mode. + */ + bundle.bits = le64_to_cpu(prefetched_bundles[next_bundle++]); bundle.num_insns = parse_insn_tile(bundle.bits, pc, bundle.insns); num_info_ops = bt_get_info_ops(&bundle, info_operands); -- cgit v1.2.3-59-g8ed1b From a1f42beb8e287482d1a802731d4fb7e2bdc2c703 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 18 Jun 2012 13:48:08 +0900 Subject: Makefile: fix up CROSS_COMPILE and READABLE_ASM interaction. When the READABLE_ASM cc-option tests were added they were done so prior to the arch Makefile include, resulting in cc-option being run on the host cc instead of the factoring in the cross prefix set up by the architecture. This bumps the include back up so that cc-option actually runs on the compiler that we're building with. Cc: Andi Kleen Signed-off-by: Paul Mundt Signed-off-by: Linus Torvalds --- Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/Makefile b/Makefile index b771af583389..462a0b4794b6 100644 --- a/Makefile +++ b/Makefile @@ -561,6 +561,8 @@ else KBUILD_CFLAGS += -O2 endif +include $(srctree)/arch/$(SRCARCH)/Makefile + ifdef CONFIG_READABLE_ASM # Disable optimizations that make assembler listings hard to read. # reorder blocks reorders the control in the function @@ -571,8 +573,6 @@ KBUILD_CFLAGS += $(call cc-option,-fno-reorder-blocks,) \ $(call cc-option,-fno-partial-inlining) endif -include $(srctree)/arch/$(SRCARCH)/Makefile - ifneq ($(CONFIG_FRAME_WARN),0) KBUILD_CFLAGS += $(call cc-option,-Wframe-larger-than=${CONFIG_FRAME_WARN}) endif -- cgit v1.2.3-59-g8ed1b From 2603efa31a0377eeaa06723bded8a1d644dd4901 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 18 Jun 2012 13:54:17 +0900 Subject: bug.h: Fix up powerpc build regression. The asm-generic/bug.h __ASSEMBLY__ guarding is completely bogus, which tripped up the powerpc build when the kernel.h include was added: In file included from include/asm-generic/bug.h:5:0, from arch/powerpc/include/asm/bug.h:127, from arch/powerpc/kernel/head_64.S:31: include/linux/kernel.h:44:0: warning: "ALIGN" redefined [enabled by default] include/linux/linkage.h:57:0: note: this is the location of the previous definition include/linux/sysinfo.h: Assembler messages: include/linux/sysinfo.h:7: Error: Unrecognized opcode: `struct' include/linux/sysinfo.h:8: Error: Unrecognized opcode: `__kernel_long_t' Moving the __ASSEMBLY__ guard up and stashing the kernel.h include under it fixes this up, as well as covering the case the original fix was attempting to handle. Tested-by: Stephen Rothwell Acked-by: Arnd Bergmann Signed-off-by: Paul Mundt Signed-off-by: Linus Torvalds --- include/asm-generic/bug.h | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index 9f02005f217a..506ec19a3736 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -2,7 +2,6 @@ #define _ASM_GENERIC_BUG_H #include -#include #ifdef CONFIG_BUG @@ -32,6 +31,9 @@ struct bug_entry { #endif /* CONFIG_GENERIC_BUG */ +#ifndef __ASSEMBLY__ +#include + /* * Don't use BUG() or BUG_ON() unless there's really no way out; one * example might be detecting data structure corruption in the middle @@ -61,7 +63,6 @@ struct bug_entry { * to provide better diagnostics. */ #ifndef __WARN_TAINT -#ifndef __ASSEMBLY__ extern __printf(3, 4) void warn_slowpath_fmt(const char *file, const int line, const char *fmt, ...); @@ -70,7 +71,6 @@ void warn_slowpath_fmt_taint(const char *file, const int line, unsigned taint, const char *fmt, ...); extern void warn_slowpath_null(const char *file, const int line); #define WANT_WARN_ON_SLOWPATH -#endif #define __WARN() warn_slowpath_null(__FILE__, __LINE__) #define __WARN_printf(arg...) warn_slowpath_fmt(__FILE__, __LINE__, arg) #define __WARN_printf_taint(taint, arg...) \ @@ -203,4 +203,6 @@ extern void warn_slowpath_null(const char *file, const int line); # define WARN_ON_SMP(x) ({0;}) #endif +#endif /* __ASSEMBLY__ */ + #endif -- cgit v1.2.3-59-g8ed1b From cba5d0b20e7c75dc06e3a609059f17f11c843d94 Mon Sep 17 00:00:00 2001 From: Janne Huttunen Date: Wed, 30 May 2012 05:28:46 -0300 Subject: [media] cxd2820r: Fix an incorrect modulation type bitmask Fix an incorrect modulation type bitmask. This allows QAM256 also to be correctly reported. Signed-off-by: Janne Huttunen Acked-by: Antti Palosaari Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/frontends/cxd2820r_c.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/dvb/frontends/cxd2820r_c.c b/drivers/media/dvb/frontends/cxd2820r_c.c index 945404991529..ed3b0ba624de 100644 --- a/drivers/media/dvb/frontends/cxd2820r_c.c +++ b/drivers/media/dvb/frontends/cxd2820r_c.c @@ -121,7 +121,7 @@ int cxd2820r_get_frontend_c(struct dvb_frontend *fe) if (ret) goto error; - switch ((buf[0] >> 0) & 0x03) { + switch ((buf[0] >> 0) & 0x07) { case 0: c->modulation = QAM_16; break; -- cgit v1.2.3-59-g8ed1b From 8e3bbf42c6d73881956863cc3305456afe2bc4ea Mon Sep 17 00:00:00 2001 From: Salman Qazi Date: Thu, 14 Jun 2012 14:55:30 -0700 Subject: cgroups: Account for CSS_DEACT_BIAS in __css_put When we fixed the race between atomic_dec and css_refcnt, we missed the fact that css_refcnt internally subtracts CSS_DEACT_BIAS to get the actual reference count. This can potentially cause a refcount leak if __css_put races with cgroup_clear_css_refs. Signed-off-by: Salman Qazi Acked-by: Li Zefan Signed-off-by: Tejun Heo --- kernel/cgroup.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/kernel/cgroup.c b/kernel/cgroup.c index ceeafe874b3f..2097684cf194 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -255,12 +255,17 @@ int cgroup_lock_is_held(void) EXPORT_SYMBOL_GPL(cgroup_lock_is_held); +static int css_unbias_refcnt(int refcnt) +{ + return refcnt >= 0 ? refcnt : refcnt - CSS_DEACT_BIAS; +} + /* the current nr of refs, always >= 0 whether @css is deactivated or not */ static int css_refcnt(struct cgroup_subsys_state *css) { int v = atomic_read(&css->refcnt); - return v >= 0 ? v : v - CSS_DEACT_BIAS; + return css_unbias_refcnt(v); } /* convenient tests for these bits */ @@ -4982,9 +4987,12 @@ EXPORT_SYMBOL_GPL(__css_tryget); void __css_put(struct cgroup_subsys_state *css) { struct cgroup *cgrp = css->cgroup; + int v; rcu_read_lock(); - switch (atomic_dec_return(&css->refcnt)) { + v = css_unbias_refcnt(atomic_dec_return(&css->refcnt)); + + switch (v) { case 1: if (notify_on_release(cgrp)) { set_bit(CGRP_RELEASABLE, &cgrp->flags); -- cgit v1.2.3-59-g8ed1b From 4e6bb2a5fb9265a222e3a86b215f4c5e6bcd61de Mon Sep 17 00:00:00 2001 From: Kamil Debski Date: Fri, 8 Jun 2012 04:46:38 -0300 Subject: [media] s5p-mfc: Bug fix of timestamp/timecode copy mechanism Fixed the code copying timecode/timestamp to corresponding frames between OUTPUT and CAPTURE. Signed-off-by: Kamil Debski Signed-off-by: Kyungmin Park Signed-off-by: Marek Szyprowski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-mfc/regs-mfc.h | 5 +++++ drivers/media/video/s5p-mfc/s5p_mfc_opr.h | 4 +++- 2 files changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/s5p-mfc/regs-mfc.h b/drivers/media/video/s5p-mfc/regs-mfc.h index 053a8a872fd7..a19bece41ba9 100644 --- a/drivers/media/video/s5p-mfc/regs-mfc.h +++ b/drivers/media/video/s5p-mfc/regs-mfc.h @@ -164,10 +164,15 @@ decoded pic */ #define S5P_FIMV_SI_DISPLAY_Y_ADR 0x2010 /* luma addr of displayed pic */ #define S5P_FIMV_SI_DISPLAY_C_ADR 0x2014 /* chroma addrof displayed pic */ + #define S5P_FIMV_SI_CONSUMED_BYTES 0x2018 /* Consumed number of bytes to decode a frame */ #define S5P_FIMV_SI_DISPLAY_STATUS 0x201c /* status of decoded picture */ +#define S5P_FIMV_SI_DECODE_Y_ADR 0x2024 /* luma addr of decoded pic */ +#define S5P_FIMV_SI_DECODE_C_ADR 0x2028 /* chroma addrof decoded pic */ +#define S5P_FIMV_SI_DECODE_STATUS 0x202c /* status of decoded picture */ + #define S5P_FIMV_SI_CH0_SB_ST_ADR 0x2044 /* start addr of stream buf */ #define S5P_FIMV_SI_CH0_SB_FRM_SIZE 0x2048 /* size of stream buf */ #define S5P_FIMV_SI_CH0_DESC_ADR 0x204c /* addr of descriptor buf */ diff --git a/drivers/media/video/s5p-mfc/s5p_mfc_opr.h b/drivers/media/video/s5p-mfc/s5p_mfc_opr.h index db83836e6a9f..5932d1c782c5 100644 --- a/drivers/media/video/s5p-mfc/s5p_mfc_opr.h +++ b/drivers/media/video/s5p-mfc/s5p_mfc_opr.h @@ -57,10 +57,12 @@ void s5p_mfc_cleanup_queue(struct list_head *lh, struct vb2_queue *vq); S5P_FIMV_SI_DISPLAY_Y_ADR) << \ MFC_OFFSET_SHIFT) #define s5p_mfc_get_dec_y_adr() (readl(dev->regs_base + \ - S5P_FIMV_SI_DISPLAY_Y_ADR) << \ + S5P_FIMV_SI_DECODE_Y_ADR) << \ MFC_OFFSET_SHIFT) #define s5p_mfc_get_dspl_status() readl(dev->regs_base + \ S5P_FIMV_SI_DISPLAY_STATUS) +#define s5p_mfc_get_dec_status() readl(dev->regs_base + \ + S5P_FIMV_SI_DECODE_STATUS) #define s5p_mfc_get_frame_type() (readl(dev->regs_base + \ S5P_FIMV_DECODE_FRAME_TYPE) \ & S5P_FIMV_DECODE_FRAME_MASK) -- cgit v1.2.3-59-g8ed1b From 9f4161a6b8796dc41dc3924d7869622f7975706a Mon Sep 17 00:00:00 2001 From: Tomasz Moń Date: Fri, 8 Jun 2012 04:47:34 -0300 Subject: [media] v4l: mem2mem_testdev: Fix race conditions in driver MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The mem2mem_testdev allows multiple instances to be opened in parallel. Source and destination queue data are being shared between all instances, which can lead to kernel oops due to race conditions (most likely to happen inside device_run()). Attached patch fixes mentioned problem by storing queue data per device context. Signed-off-by: Tomasz Moń Signed-off-by: Marek Szyprowski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/mem2mem_testdev.c | 50 ++++++++++++++++++----------------- 1 file changed, 26 insertions(+), 24 deletions(-) diff --git a/drivers/media/video/mem2mem_testdev.c b/drivers/media/video/mem2mem_testdev.c index d2dec585e61b..3945556f5733 100644 --- a/drivers/media/video/mem2mem_testdev.c +++ b/drivers/media/video/mem2mem_testdev.c @@ -110,22 +110,6 @@ enum { V4L2_M2M_DST = 1, }; -/* Source and destination queue data */ -static struct m2mtest_q_data q_data[2]; - -static struct m2mtest_q_data *get_q_data(enum v4l2_buf_type type) -{ - switch (type) { - case V4L2_BUF_TYPE_VIDEO_OUTPUT: - return &q_data[V4L2_M2M_SRC]; - case V4L2_BUF_TYPE_VIDEO_CAPTURE: - return &q_data[V4L2_M2M_DST]; - default: - BUG(); - } - return NULL; -} - #define V4L2_CID_TRANS_TIME_MSEC V4L2_CID_PRIVATE_BASE #define V4L2_CID_TRANS_NUM_BUFS (V4L2_CID_PRIVATE_BASE + 1) @@ -198,8 +182,26 @@ struct m2mtest_ctx { int aborting; struct v4l2_m2m_ctx *m2m_ctx; + + /* Source and destination queue data */ + struct m2mtest_q_data q_data[2]; }; +static struct m2mtest_q_data *get_q_data(struct m2mtest_ctx *ctx, + enum v4l2_buf_type type) +{ + switch (type) { + case V4L2_BUF_TYPE_VIDEO_OUTPUT: + return &ctx->q_data[V4L2_M2M_SRC]; + case V4L2_BUF_TYPE_VIDEO_CAPTURE: + return &ctx->q_data[V4L2_M2M_DST]; + default: + BUG(); + } + return NULL; +} + + static struct v4l2_queryctrl *get_ctrl(int id) { int i; @@ -223,7 +225,7 @@ static int device_process(struct m2mtest_ctx *ctx, int tile_w, bytes_left; int width, height, bytesperline; - q_data = get_q_data(V4L2_BUF_TYPE_VIDEO_OUTPUT); + q_data = get_q_data(ctx, V4L2_BUF_TYPE_VIDEO_OUTPUT); width = q_data->width; height = q_data->height; @@ -436,7 +438,7 @@ static int vidioc_g_fmt(struct m2mtest_ctx *ctx, struct v4l2_format *f) if (!vq) return -EINVAL; - q_data = get_q_data(f->type); + q_data = get_q_data(ctx, f->type); f->fmt.pix.width = q_data->width; f->fmt.pix.height = q_data->height; @@ -535,7 +537,7 @@ static int vidioc_s_fmt(struct m2mtest_ctx *ctx, struct v4l2_format *f) if (!vq) return -EINVAL; - q_data = get_q_data(f->type); + q_data = get_q_data(ctx, f->type); if (!q_data) return -EINVAL; @@ -747,7 +749,7 @@ static int m2mtest_queue_setup(struct vb2_queue *vq, struct m2mtest_q_data *q_data; unsigned int size, count = *nbuffers; - q_data = get_q_data(vq->type); + q_data = get_q_data(ctx, vq->type); size = q_data->width * q_data->height * q_data->fmt->depth >> 3; @@ -775,7 +777,7 @@ static int m2mtest_buf_prepare(struct vb2_buffer *vb) dprintk(ctx->dev, "type: %d\n", vb->vb2_queue->type); - q_data = get_q_data(vb->vb2_queue->type); + q_data = get_q_data(ctx, vb->vb2_queue->type); if (vb2_plane_size(vb, 0) < q_data->sizeimage) { dprintk(ctx->dev, "%s data will not fit into plane (%lu < %lu)\n", @@ -860,6 +862,9 @@ static int m2mtest_open(struct file *file) ctx->transtime = MEM2MEM_DEF_TRANSTIME; ctx->num_processed = 0; + ctx->q_data[V4L2_M2M_SRC].fmt = &formats[0]; + ctx->q_data[V4L2_M2M_DST].fmt = &formats[0]; + ctx->m2m_ctx = v4l2_m2m_ctx_init(dev->m2m_dev, ctx, &queue_init); if (IS_ERR(ctx->m2m_ctx)) { @@ -986,9 +991,6 @@ static int m2mtest_probe(struct platform_device *pdev) goto err_m2m; } - q_data[V4L2_M2M_SRC].fmt = &formats[0]; - q_data[V4L2_M2M_DST].fmt = &formats[0]; - return 0; v4l2_m2m_release(dev->m2m_dev); -- cgit v1.2.3-59-g8ed1b From afd14f48a732758d6fbbc3a5fc5b211742102c4b Mon Sep 17 00:00:00 2001 From: Andrzej Hajda Date: Tue, 12 Jun 2012 07:12:58 -0300 Subject: [media] v4l/s5p-mfc: corrected encoder v4l control definitions Patch corrects definition of H264 level control and changes bare numbers to enums in two other cases. Signed-off-by: Andrzej Hajda Signed-off-by: Kyungmin Park Signed-off-by: Marek Szyprowski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-mfc/s5p_mfc_enc.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/media/video/s5p-mfc/s5p_mfc_enc.c b/drivers/media/video/s5p-mfc/s5p_mfc_enc.c index acedb2004be3..9c19aa8038dd 100644 --- a/drivers/media/video/s5p-mfc/s5p_mfc_enc.c +++ b/drivers/media/video/s5p-mfc/s5p_mfc_enc.c @@ -243,12 +243,6 @@ static struct mfc_control controls[] = { .minimum = V4L2_MPEG_VIDEO_H264_LEVEL_1_0, .maximum = V4L2_MPEG_VIDEO_H264_LEVEL_4_0, .default_value = V4L2_MPEG_VIDEO_H264_LEVEL_1_0, - .menu_skip_mask = ~( - (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_1) | - (1 << V4L2_MPEG_VIDEO_H264_LEVEL_4_2) | - (1 << V4L2_MPEG_VIDEO_H264_LEVEL_5_0) | - (1 << V4L2_MPEG_VIDEO_H264_LEVEL_5_1) - ), }, { .id = V4L2_CID_MPEG_VIDEO_MPEG4_LEVEL, @@ -494,7 +488,7 @@ static struct mfc_control controls[] = { .type = V4L2_CTRL_TYPE_MENU, .minimum = V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_UNSPECIFIED, .maximum = V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_EXTENDED, - .default_value = 0, + .default_value = V4L2_MPEG_VIDEO_H264_VUI_SAR_IDC_UNSPECIFIED, .menu_skip_mask = 0, }, { @@ -534,7 +528,7 @@ static struct mfc_control controls[] = { .type = V4L2_CTRL_TYPE_MENU, .minimum = V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE, .maximum = V4L2_MPEG_VIDEO_MPEG4_PROFILE_ADVANCED_SIMPLE, - .default_value = 0, + .default_value = V4L2_MPEG_VIDEO_MPEG4_PROFILE_SIMPLE, .menu_skip_mask = 0, }, { -- cgit v1.2.3-59-g8ed1b From 0749ae350133204c2562c69f4265842141cacf12 Mon Sep 17 00:00:00 2001 From: Andrzej Hajda Date: Tue, 12 Jun 2012 09:46:26 -0300 Subject: [media] v4l/s5p-mfc: added image size align in VIDIOC_TRY_FMT Image size for MFC encoder should have size between 8x4 and 1920x1080 with even width and height. Signed-off-by: Andrzej Hajda Signed-off-by: Kyungmin Park Signed-off-by: Marek Szyprowski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-mfc/s5p_mfc_enc.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/video/s5p-mfc/s5p_mfc_enc.c b/drivers/media/video/s5p-mfc/s5p_mfc_enc.c index 9c19aa8038dd..03d83340e7fb 100644 --- a/drivers/media/video/s5p-mfc/s5p_mfc_enc.c +++ b/drivers/media/video/s5p-mfc/s5p_mfc_enc.c @@ -901,6 +901,8 @@ static int vidioc_try_fmt(struct file *file, void *priv, struct v4l2_format *f) mfc_err("failed to try output format\n"); return -EINVAL; } + v4l_bound_align_image(&pix_fmt_mp->width, 8, 1920, 1, + &pix_fmt_mp->height, 4, 1080, 1, 0); } else { mfc_err("invalid buf type\n"); return -EINVAL; -- cgit v1.2.3-59-g8ed1b From f60935c17f0c99d4d70fa7e90cfdba3e7008282d Mon Sep 17 00:00:00 2001 From: Kamil Debski Date: Thu, 14 Jun 2012 05:58:07 -0300 Subject: [media] s5p-mfc: Fix setting controls Fixed s_ctrl function when setting the following controls: - V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER - V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY Signed-off-by: Kamil Debski Signed-off-by: Kyungmin Park Signed-off-by: Marek Szyprowski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-mfc/s5p_mfc_dec.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/video/s5p-mfc/s5p_mfc_dec.c b/drivers/media/video/s5p-mfc/s5p_mfc_dec.c index c25ec022d267..4dd32fc8fd82 100644 --- a/drivers/media/video/s5p-mfc/s5p_mfc_dec.c +++ b/drivers/media/video/s5p-mfc/s5p_mfc_dec.c @@ -627,13 +627,13 @@ static int s5p_mfc_dec_s_ctrl(struct v4l2_ctrl *ctrl) switch (ctrl->id) { case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY: - ctx->loop_filter_mpeg4 = ctrl->val; + ctx->display_delay = ctrl->val; break; case V4L2_CID_MPEG_MFC51_VIDEO_DECODER_H264_DISPLAY_DELAY_ENABLE: ctx->display_delay_enable = ctrl->val; break; case V4L2_CID_MPEG_VIDEO_DECODER_MPEG4_DEBLOCK_FILTER: - ctx->display_delay = ctrl->val; + ctx->loop_filter_mpeg4 = ctrl->val; break; case V4L2_CID_MPEG_VIDEO_DECODER_SLICE_INTERFACE: ctx->slice_interface = ctrl->val; -- cgit v1.2.3-59-g8ed1b From 618a2a3a72e2e41a523d25c17b85521858a41e28 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Mon, 11 Jun 2012 06:58:42 -0300 Subject: [media] s5p-mfc: Fix checkpatch error in s5p_mfc_shm.h file Fixes the following error: ERROR: open brace '{' following enum go on the same line +enum MFC_SHM_OFS +{ Signed-off-by: Sachin Kamat Acked-by: Kamil Debski Signed-off-by: Marek Szyprowski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-mfc/s5p_mfc_shm.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/media/video/s5p-mfc/s5p_mfc_shm.h b/drivers/media/video/s5p-mfc/s5p_mfc_shm.h index 764eac6bcc4c..cf962a466276 100644 --- a/drivers/media/video/s5p-mfc/s5p_mfc_shm.h +++ b/drivers/media/video/s5p-mfc/s5p_mfc_shm.h @@ -13,8 +13,7 @@ #ifndef S5P_MFC_SHM_H_ #define S5P_MFC_SHM_H_ -enum MFC_SHM_OFS -{ +enum MFC_SHM_OFS { EXTENEDED_DECODE_STATUS = 0x00, /* D */ SET_FRAME_TAG = 0x04, /* D */ GET_FRAME_TAG_TOP = 0x08, /* D */ -- cgit v1.2.3-59-g8ed1b From 4c4ed22632bfafd5367a5a864a8039f5b6efbbab Mon Sep 17 00:00:00 2001 From: Kamil Debski Date: Fri, 15 Jun 2012 13:40:32 -0300 Subject: [media] s5p-fimc: Fix control creation function Fixed the size of the V4L2_CID_COLORFX control cluster. Prior to this fix V4L2_CID_ROTATE was also icluded in the cluster preventing application from enabling rotation. Reported-by: Marek Szyprowski Signed-off-by: Kamil Debski Signed-off-by: Kyungmin Park Signed-off-by: Marek Szyprowski Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c index fedcd561ba27..92fc5a20fb76 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.c +++ b/drivers/media/video/s5p-fimc/fimc-core.c @@ -615,7 +615,7 @@ int fimc_ctrls_create(struct fimc_ctx *ctx) ctx->effect.type = FIMC_REG_CIIMGEFF_FIN_BYPASS; if (!handler->error) { - v4l2_ctrl_cluster(3, &ctrls->colorfx); + v4l2_ctrl_cluster(2, &ctrls->colorfx); ctrls->ready = true; } -- cgit v1.2.3-59-g8ed1b From 2bece307c96270fc3fdb2cc0ad8b918c26897b95 Mon Sep 17 00:00:00 2001 From: Hans Verkuil Date: Sat, 9 Jun 2012 06:59:45 -0300 Subject: [media] Fix VIDIOC_DQEVENT docbook entry Signed-off-by: Hans Verkuil Acked-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/vidioc-dqevent.xml | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Documentation/DocBook/media/v4l/vidioc-dqevent.xml b/Documentation/DocBook/media/v4l/vidioc-dqevent.xml index e8714aa16433..98a856f9ec30 100644 --- a/Documentation/DocBook/media/v4l/vidioc-dqevent.xml +++ b/Documentation/DocBook/media/v4l/vidioc-dqevent.xml @@ -89,7 +89,7 @@ &v4l2-event-frame-sync; - frame + frame_sync Event data for event V4L2_EVENT_FRAME_SYNC. -- cgit v1.2.3-59-g8ed1b From 099987f0aaf28771261b91a41240b9228f2e32b2 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Thu, 14 Jun 2012 09:54:07 -0300 Subject: [media] smia: Fix compile failures Fix compile of smia code. Resolves-bug: https://bugzilla.kernel.org/show_bug.cgi?id=43337 Signed-off-by: Alan Cox Signed-off-by: Sakari Ailus Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/smiapp/Kconfig | 2 +- drivers/media/video/smiapp/smiapp-core.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/smiapp/Kconfig b/drivers/media/video/smiapp/Kconfig index f7b35ff443bf..fb99ff18be07 100644 --- a/drivers/media/video/smiapp/Kconfig +++ b/drivers/media/video/smiapp/Kconfig @@ -1,6 +1,6 @@ config VIDEO_SMIAPP tristate "SMIA++/SMIA sensor support" - depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API + depends on I2C && VIDEO_V4L2 && VIDEO_V4L2_SUBDEV_API && HAVE_CLK select VIDEO_SMIAPP_PLL ---help--- This is a generic driver for SMIA++/SMIA camera modules. diff --git a/drivers/media/video/smiapp/smiapp-core.c b/drivers/media/video/smiapp/smiapp-core.c index f518026cb67b..e8c93c89265a 100644 --- a/drivers/media/video/smiapp/smiapp-core.c +++ b/drivers/media/video/smiapp/smiapp-core.c @@ -32,6 +32,7 @@ #include #include #include +#include #include #include -- cgit v1.2.3-59-g8ed1b From 246f6f2ff2c5cf46ded6d06f11f63e38bad880d1 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Tue, 19 Jun 2012 00:32:57 +0200 Subject: kmsg - kmsg_dump() fix CONFIG_PRINTK=n compilation Signed-off-by: Kay Sievers Cc: Stephen Rothwell Reported-by: Randy Dunlap Reported-by: Fengguang Wu Signed-off-by: Greg Kroah-Hartman --- include/linux/kmsg_dump.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/include/linux/kmsg_dump.h b/include/linux/kmsg_dump.h index af4eb5a39d9a..d6bd50110ec2 100644 --- a/include/linux/kmsg_dump.h +++ b/include/linux/kmsg_dump.h @@ -71,19 +71,19 @@ static inline void kmsg_dump(enum kmsg_dump_reason reason) { } -bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog, - const char *line, size_t size, size_t *len) +static inline bool kmsg_dump_get_line(struct kmsg_dumper *dumper, bool syslog, + const char *line, size_t size, size_t *len) { return false; } -bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog, - char *buf, size_t size, size_t *len) +static inline bool kmsg_dump_get_buffer(struct kmsg_dumper *dumper, bool syslog, + char *buf, size_t size, size_t *len) { return false; } -void kmsg_dump_rewind(struct kmsg_dumper *dumper) +static inline void kmsg_dump_rewind(struct kmsg_dumper *dumper) { } -- cgit v1.2.3-59-g8ed1b From 4d146ad7388a9cca2a890d7449aeb767565068d7 Mon Sep 17 00:00:00 2001 From: Fengguang Wu Date: Sat, 9 Jun 2012 20:00:19 -0300 Subject: [media] pms: fix build error in pms_probe() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix a compiler breakage introduced by commit 8173090acb33: drivers/media/video/pms.c: In function ‘pms_probe’: drivers/media/video/pms.c:1047:2: error: implicit declaration of function ‘kzalloc’ [-Werror=implicit-function-declaration] drivers/media/video/pms.c:1116:2: error: implicit declaration of function ‘kfree’ [-Werror=implicit-function-declaration] Signed-off-by: Fengguang Wu Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/pms.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/video/pms.c b/drivers/media/video/pms.c index af2d9086d7e8..77f9c92186f4 100644 --- a/drivers/media/video/pms.c +++ b/drivers/media/video/pms.c @@ -26,6 +26,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3-59-g8ed1b From 155cb06c89f13af3e3e6bd520b9c62762f532d7b Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 16 Jun 2012 11:36:08 +0800 Subject: extcon: Fix wrong index in max8997_extcon_cable[] Currently, the index of "Dock-desk" and "Dock-card" are the same. Thus the latter one overrides the first one. Then we have problem when calling extcon_find_cable_index() because edev->supported_cable[7] only matches "Dock-card". Signed-off-by: Axel Lin Acked-by: Kyungmin Park Signed-off-by: Greg Kroah-Hartman --- drivers/extcon/extcon-max8997.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c index 23416e443765..5ecf1763b5d4 100644 --- a/drivers/extcon/extcon-max8997.c +++ b/drivers/extcon/extcon-max8997.c @@ -116,8 +116,8 @@ const char *max8997_extcon_cable[] = { [5] = "Charge-downstream", [6] = "MHL", [7] = "Dock-desk", - [7] = "Dock-card", - [8] = "JIG", + [8] = "Dock-card", + [9] = "JIG", NULL, }; -- cgit v1.2.3-59-g8ed1b From 3f1dc550b069e9fbfe375844f3c76f2cdd12f05c Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 16 Jun 2012 11:55:18 +0800 Subject: extcon: Set platform drvdata in gpio_extcon_probe() and fix irq leak Add missing platform_set_drvdata() in gpio_extcon_probe(), otherwise calling platform_get_drvdata in gpio_extcon_remove() returns NULL. Also add missing free_irq call in gpio_extcon_remove(). Signed-off-by: Axel Lin Signed-off-by: Greg Kroah-Hartman --- drivers/extcon/extcon_gpio.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/extcon/extcon_gpio.c b/drivers/extcon/extcon_gpio.c index fe7a07b47336..8a0dcc11c7c7 100644 --- a/drivers/extcon/extcon_gpio.c +++ b/drivers/extcon/extcon_gpio.c @@ -125,6 +125,7 @@ static int __devinit gpio_extcon_probe(struct platform_device *pdev) if (ret < 0) goto err_request_irq; + platform_set_drvdata(pdev, extcon_data); /* Perform initial detection */ gpio_extcon_work(&extcon_data->work.work); @@ -146,6 +147,7 @@ static int __devexit gpio_extcon_remove(struct platform_device *pdev) struct gpio_extcon_data *extcon_data = platform_get_drvdata(pdev); cancel_delayed_work_sync(&extcon_data->work); + free_irq(extcon_data->irq, extcon_data); gpio_free(extcon_data->gpio); extcon_dev_unregister(&extcon_data->edev); devm_kfree(&pdev->dev, extcon_data); -- cgit v1.2.3-59-g8ed1b From 96c9f05b39a5a3239cf0588cc86a1b95cac652c4 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Sat, 16 Jun 2012 21:25:11 +0800 Subject: extcon: max8997: Add missing kfree for info->edev in max8997_muic_remove() extcon_dev_unregister(info->edev) doest not free info->edev, we need to call kfree(info->edev) here. Signed-off-by: Axel Lin Signed-off-by: Greg Kroah-Hartman --- drivers/extcon/extcon-max8997.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/extcon/extcon-max8997.c b/drivers/extcon/extcon-max8997.c index 5ecf1763b5d4..a4ed30bd9a41 100644 --- a/drivers/extcon/extcon-max8997.c +++ b/drivers/extcon/extcon-max8997.c @@ -514,6 +514,7 @@ static int __devexit max8997_muic_remove(struct platform_device *pdev) extcon_dev_unregister(info->edev); + kfree(info->edev); kfree(info); return 0; -- cgit v1.2.3-59-g8ed1b From 6355f25ed965421725d92cf719fc63008690ca1c Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Mon, 18 Jun 2012 15:01:50 -0600 Subject: ARM: tegra: make tegra_cpu_reset_handler_enable() __init This solves a section mismatch warning. I hadn't noticed this before, because my compiler was inlining tegra_cpu_reset_handler_enable() inside tegra_cpu_reset_handler_init(), which is already __init, but I switched compilers and it stopped doing that. Cc: # v3.4 Signed-off-by: Stephen Warren Signed-off-by: Olof Johansson --- arch/arm/mach-tegra/reset.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-tegra/reset.c b/arch/arm/mach-tegra/reset.c index 4d6a2ee99c3b..5beb7ebe2948 100644 --- a/arch/arm/mach-tegra/reset.c +++ b/arch/arm/mach-tegra/reset.c @@ -33,7 +33,7 @@ static bool is_enabled; -static void tegra_cpu_reset_handler_enable(void) +static void __init tegra_cpu_reset_handler_enable(void) { void __iomem *iram_base = IO_ADDRESS(TEGRA_IRAM_RESET_BASE); void __iomem *evp_cpu_reset = -- cgit v1.2.3-59-g8ed1b From d189634ecab947c10f6f832258b103d0bbfe73cc Mon Sep 17 00:00:00 2001 From: Thomas Graf Date: Mon, 18 Jun 2012 12:08:33 +0000 Subject: ipv6: Move ipv6 proc file registration to end of init order /proc/net/ipv6_route reflects the contents of fib_table_hash. The proc handler is installed in ip6_route_net_init() whereas fib_table_hash is allocated in fib6_net_init() _after_ the proc handler has been installed. This opens up a short time frame to access fib_table_hash with its pants down. Move the registration of the proc files to a later point in the init order to avoid the race. Tested :-) Signed-off-by: Thomas Graf Signed-off-by: David S. Miller --- net/ipv6/route.c | 41 +++++++++++++++++++++++++++++++---------- 1 file changed, 31 insertions(+), 10 deletions(-) diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 999a982ad3fd..becb048d18d4 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -2957,10 +2957,6 @@ static int __net_init ip6_route_net_init(struct net *net) net->ipv6.sysctl.ip6_rt_mtu_expires = 10*60*HZ; net->ipv6.sysctl.ip6_rt_min_advmss = IPV6_MIN_MTU - 20 - 40; -#ifdef CONFIG_PROC_FS - proc_net_fops_create(net, "ipv6_route", 0, &ipv6_route_proc_fops); - proc_net_fops_create(net, "rt6_stats", S_IRUGO, &rt6_stats_seq_fops); -#endif net->ipv6.ip6_rt_gc_expire = 30*HZ; ret = 0; @@ -2981,10 +2977,6 @@ out_ip6_dst_ops: static void __net_exit ip6_route_net_exit(struct net *net) { -#ifdef CONFIG_PROC_FS - proc_net_remove(net, "ipv6_route"); - proc_net_remove(net, "rt6_stats"); -#endif kfree(net->ipv6.ip6_null_entry); #ifdef CONFIG_IPV6_MULTIPLE_TABLES kfree(net->ipv6.ip6_prohibit_entry); @@ -2993,11 +2985,33 @@ static void __net_exit ip6_route_net_exit(struct net *net) dst_entries_destroy(&net->ipv6.ip6_dst_ops); } +static int __net_init ip6_route_net_init_late(struct net *net) +{ +#ifdef CONFIG_PROC_FS + proc_net_fops_create(net, "ipv6_route", 0, &ipv6_route_proc_fops); + proc_net_fops_create(net, "rt6_stats", S_IRUGO, &rt6_stats_seq_fops); +#endif + return 0; +} + +static void __net_exit ip6_route_net_exit_late(struct net *net) +{ +#ifdef CONFIG_PROC_FS + proc_net_remove(net, "ipv6_route"); + proc_net_remove(net, "rt6_stats"); +#endif +} + static struct pernet_operations ip6_route_net_ops = { .init = ip6_route_net_init, .exit = ip6_route_net_exit, }; +static struct pernet_operations ip6_route_net_late_ops = { + .init = ip6_route_net_init_late, + .exit = ip6_route_net_exit_late, +}; + static struct notifier_block ip6_route_dev_notifier = { .notifier_call = ip6_route_dev_notify, .priority = 0, @@ -3047,19 +3061,25 @@ int __init ip6_route_init(void) if (ret) goto xfrm6_init; + ret = register_pernet_subsys(&ip6_route_net_late_ops); + if (ret) + goto fib6_rules_init; + ret = -ENOBUFS; if (__rtnl_register(PF_INET6, RTM_NEWROUTE, inet6_rtm_newroute, NULL, NULL) || __rtnl_register(PF_INET6, RTM_DELROUTE, inet6_rtm_delroute, NULL, NULL) || __rtnl_register(PF_INET6, RTM_GETROUTE, inet6_rtm_getroute, NULL, NULL)) - goto fib6_rules_init; + goto out_register_late_subsys; ret = register_netdevice_notifier(&ip6_route_dev_notifier); if (ret) - goto fib6_rules_init; + goto out_register_late_subsys; out: return ret; +out_register_late_subsys: + unregister_pernet_subsys(&ip6_route_net_late_ops); fib6_rules_init: fib6_rules_cleanup(); xfrm6_init: @@ -3078,6 +3098,7 @@ out_kmem_cache: void ip6_route_cleanup(void) { unregister_netdevice_notifier(&ip6_route_dev_notifier); + unregister_pernet_subsys(&ip6_route_net_late_ops); fib6_rules_cleanup(); xfrm6_fini(); fib6_gc_cleanup(); -- cgit v1.2.3-59-g8ed1b From ea1e76a3f92f8565d395c549b9ca836c7eaa44b9 Mon Sep 17 00:00:00 2001 From: Andrei Emeltchenko Date: Wed, 13 Jun 2012 13:35:44 +0300 Subject: Bluetooth: btmrvl: Do not send vendor events to bluetooth stack Vendor-specific events shall be processed in driver and not sent to bluetooth stack where they screw up HCI command countings. Signed-off-by: Andrei Emeltchenko Signed-off-by: Gustavo Padovan --- drivers/bluetooth/btmrvl_drv.h | 2 +- drivers/bluetooth/btmrvl_main.c | 14 ++++++++++++-- drivers/bluetooth/btmrvl_sdio.c | 8 +++++--- 3 files changed, 18 insertions(+), 6 deletions(-) diff --git a/drivers/bluetooth/btmrvl_drv.h b/drivers/bluetooth/btmrvl_drv.h index 94f2d65131c4..27068d149380 100644 --- a/drivers/bluetooth/btmrvl_drv.h +++ b/drivers/bluetooth/btmrvl_drv.h @@ -136,7 +136,7 @@ int btmrvl_remove_card(struct btmrvl_private *priv); void btmrvl_interrupt(struct btmrvl_private *priv); -void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb); +bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb); int btmrvl_process_event(struct btmrvl_private *priv, struct sk_buff *skb); int btmrvl_send_module_cfg_cmd(struct btmrvl_private *priv, int subcmd); diff --git a/drivers/bluetooth/btmrvl_main.c b/drivers/bluetooth/btmrvl_main.c index 681ca9d18e12..dc304def8400 100644 --- a/drivers/bluetooth/btmrvl_main.c +++ b/drivers/bluetooth/btmrvl_main.c @@ -44,23 +44,33 @@ void btmrvl_interrupt(struct btmrvl_private *priv) } EXPORT_SYMBOL_GPL(btmrvl_interrupt); -void btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb) +bool btmrvl_check_evtpkt(struct btmrvl_private *priv, struct sk_buff *skb) { struct hci_event_hdr *hdr = (void *) skb->data; struct hci_ev_cmd_complete *ec; - u16 opcode, ocf; + u16 opcode, ocf, ogf; if (hdr->evt == HCI_EV_CMD_COMPLETE) { ec = (void *) (skb->data + HCI_EVENT_HDR_SIZE); opcode = __le16_to_cpu(ec->opcode); ocf = hci_opcode_ocf(opcode); + ogf = hci_opcode_ogf(opcode); + if (ocf == BT_CMD_MODULE_CFG_REQ && priv->btmrvl_dev.sendcmdflag) { priv->btmrvl_dev.sendcmdflag = false; priv->adapter->cmd_complete = true; wake_up_interruptible(&priv->adapter->cmd_wait_q); } + + if (ogf == OGF) { + BT_DBG("vendor event skipped: ogf 0x%4.4x", ogf); + kfree_skb(skb); + return false; + } } + + return true; } EXPORT_SYMBOL_GPL(btmrvl_check_evtpkt); diff --git a/drivers/bluetooth/btmrvl_sdio.c b/drivers/bluetooth/btmrvl_sdio.c index a853244e7fd7..0cd61d9f07cd 100644 --- a/drivers/bluetooth/btmrvl_sdio.c +++ b/drivers/bluetooth/btmrvl_sdio.c @@ -562,10 +562,12 @@ static int btmrvl_sdio_card_to_host(struct btmrvl_private *priv) skb_put(skb, buf_len); skb_pull(skb, SDIO_HEADER_LEN); - if (type == HCI_EVENT_PKT) - btmrvl_check_evtpkt(priv, skb); + if (type == HCI_EVENT_PKT) { + if (btmrvl_check_evtpkt(priv, skb)) + hci_recv_frame(skb); + } else + hci_recv_frame(skb); - hci_recv_frame(skb); hdev->stat.byte_rx += buf_len; break; -- cgit v1.2.3-59-g8ed1b From 39d84a58ad6290a43e6503acc8b54ebb7e4ecc54 Mon Sep 17 00:00:00 2001 From: Daniel Halperin Date: Mon, 18 Jun 2012 11:04:55 +0000 Subject: sctp: fix warning when compiling without IPv6 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit net/sctp/protocol.c: In function ‘sctp_addr_wq_timeout_handler’: net/sctp/protocol.c:676: warning: label ‘free_next’ defined but not used Signed-off-by: Daniel Halperin Signed-off-by: David S. Miller --- net/sctp/protocol.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index 5942d27b1444..9c90811d1134 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -673,7 +673,9 @@ void sctp_addr_wq_timeout_handler(unsigned long arg) SCTP_DEBUG_PRINTK("sctp_addrwq_timo_handler: sctp_asconf_mgmt failed\n"); sctp_bh_unlock_sock(sk); } +#if IS_ENABLED(CONFIG_IPV6) free_next: +#endif list_del(&addrw->list); kfree(addrw); } -- cgit v1.2.3-59-g8ed1b From 48d7d0ad9022b36be9fd8a236fb58ad4c0f3b80c Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Sun, 17 Jun 2012 22:52:09 +0000 Subject: phy/micrel: change phy_id_mask for KSZ9021 and KS8001 On a freescale imx6q platform, a hardware phy chip KSZ9021 is recognized as a KS8001 chip by the current driver like this: eth0: Freescale FEC PHY driver [Micrel KS8001 or KS8721] KSZ9021 has phy_id 0x00221610, while KSZ8001 has phy_id 0x0022161a, the current phy_id_mask (0x00fffff0/0x00ffff10) can't distinguish them. So change phy_id_mask to resolve this problem. Although the micrel datasheet says that the 4 LSB of phyid2 register contains the chip revision number and the current driver is designed to follow this rule, in reality the chip implementation doesn't follow it. Cc: David J. Choi Cc: David S. Miller Cc: Nobuhiro Iwamatsu Signed-off-by: Hui Wang Signed-off-by: David S. Miller --- drivers/net/phy/micrel.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index 590f902deb6b..9d6c80c8a0cf 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -161,7 +161,7 @@ static struct phy_driver ks8051_driver = { static struct phy_driver ks8001_driver = { .phy_id = PHY_ID_KS8001, .name = "Micrel KS8001 or KS8721", - .phy_id_mask = 0x00fffff0, + .phy_id_mask = 0x00ffffff, .features = (PHY_BASIC_FEATURES | SUPPORTED_Pause), .flags = PHY_HAS_MAGICANEG | PHY_HAS_INTERRUPT, .config_init = kszphy_config_init, @@ -174,7 +174,7 @@ static struct phy_driver ks8001_driver = { static struct phy_driver ksz9021_driver = { .phy_id = PHY_ID_KSZ9021, - .phy_id_mask = 0x000fff10, + .phy_id_mask = 0x000ffffe, .name = "Micrel KSZ9021 Gigabit PHY", .features = (PHY_GBIT_FEATURES | SUPPORTED_Pause | SUPPORTED_Asym_Pause), @@ -240,8 +240,8 @@ MODULE_AUTHOR("David J. Choi"); MODULE_LICENSE("GPL"); static struct mdio_device_id __maybe_unused micrel_tbl[] = { - { PHY_ID_KSZ9021, 0x000fff10 }, - { PHY_ID_KS8001, 0x00fffff0 }, + { PHY_ID_KSZ9021, 0x000ffffe }, + { PHY_ID_KS8001, 0x00ffffff }, { PHY_ID_KS8737, 0x00fffff0 }, { PHY_ID_KS8041, 0x00fffff0 }, { PHY_ID_KS8051, 0x00fffff0 }, -- cgit v1.2.3-59-g8ed1b From 081f323bd3cc3a4d5ee6276e53cc52eddfc20a63 Mon Sep 17 00:00:00 2001 From: Paul Mackerras Date: Fri, 1 Jun 2012 20:20:24 +1000 Subject: KVM: PPC: Book3S HV: Drop locks around call to kvmppc_pin_guest_page At the moment we call kvmppc_pin_guest_page() in kvmppc_update_vpa() with two spinlocks held: the vcore lock and the vcpu->vpa_update_lock. This is not good, since kvmppc_pin_guest_page() calls down_read() and get_user_pages_fast(), both of which can sleep. This bug was introduced in 2e25aa5f ("KVM: PPC: Book3S HV: Make virtual processor area registration more robust"). This arranges to drop those spinlocks before calling kvmppc_pin_guest_page() and re-take them afterwards. Dropping the vcore lock in kvmppc_run_core() means we have to set the vcore_state field to VCORE_RUNNING before we drop the lock, so that other vcpus won't try to run this vcore. Signed-off-by: Paul Mackerras Acked-by: Alexander Graf Signed-off-by: Avi Kivity --- arch/powerpc/kvm/book3s_hv.c | 96 ++++++++++++++++++++++++++++++-------------- 1 file changed, 66 insertions(+), 30 deletions(-) diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index c6af1d623839..3abe1b86e583 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -268,24 +268,45 @@ static unsigned long do_h_register_vpa(struct kvm_vcpu *vcpu, return err; } -static void kvmppc_update_vpa(struct kvm *kvm, struct kvmppc_vpa *vpap) +static void kvmppc_update_vpa(struct kvm_vcpu *vcpu, struct kvmppc_vpa *vpap) { + struct kvm *kvm = vcpu->kvm; void *va; unsigned long nb; + unsigned long gpa; - vpap->update_pending = 0; - va = NULL; - if (vpap->next_gpa) { - va = kvmppc_pin_guest_page(kvm, vpap->next_gpa, &nb); - if (nb < vpap->len) { - /* - * If it's now too short, it must be that userspace - * has changed the mappings underlying guest memory, - * so unregister the region. - */ + /* + * We need to pin the page pointed to by vpap->next_gpa, + * but we can't call kvmppc_pin_guest_page under the lock + * as it does get_user_pages() and down_read(). So we + * have to drop the lock, pin the page, then get the lock + * again and check that a new area didn't get registered + * in the meantime. + */ + for (;;) { + gpa = vpap->next_gpa; + spin_unlock(&vcpu->arch.vpa_update_lock); + va = NULL; + nb = 0; + if (gpa) + va = kvmppc_pin_guest_page(kvm, vpap->next_gpa, &nb); + spin_lock(&vcpu->arch.vpa_update_lock); + if (gpa == vpap->next_gpa) + break; + /* sigh... unpin that one and try again */ + if (va) kvmppc_unpin_guest_page(kvm, va); - va = NULL; - } + } + + vpap->update_pending = 0; + if (va && nb < vpap->len) { + /* + * If it's now too short, it must be that userspace + * has changed the mappings underlying guest memory, + * so unregister the region. + */ + kvmppc_unpin_guest_page(kvm, va); + va = NULL; } if (vpap->pinned_addr) kvmppc_unpin_guest_page(kvm, vpap->pinned_addr); @@ -296,20 +317,18 @@ static void kvmppc_update_vpa(struct kvm *kvm, struct kvmppc_vpa *vpap) static void kvmppc_update_vpas(struct kvm_vcpu *vcpu) { - struct kvm *kvm = vcpu->kvm; - spin_lock(&vcpu->arch.vpa_update_lock); if (vcpu->arch.vpa.update_pending) { - kvmppc_update_vpa(kvm, &vcpu->arch.vpa); + kvmppc_update_vpa(vcpu, &vcpu->arch.vpa); init_vpa(vcpu, vcpu->arch.vpa.pinned_addr); } if (vcpu->arch.dtl.update_pending) { - kvmppc_update_vpa(kvm, &vcpu->arch.dtl); + kvmppc_update_vpa(vcpu, &vcpu->arch.dtl); vcpu->arch.dtl_ptr = vcpu->arch.dtl.pinned_addr; vcpu->arch.dtl_index = 0; } if (vcpu->arch.slb_shadow.update_pending) - kvmppc_update_vpa(kvm, &vcpu->arch.slb_shadow); + kvmppc_update_vpa(vcpu, &vcpu->arch.slb_shadow); spin_unlock(&vcpu->arch.vpa_update_lock); } @@ -800,12 +819,39 @@ static int kvmppc_run_core(struct kvmppc_vcore *vc) struct kvm_vcpu *vcpu, *vcpu0, *vnext; long ret; u64 now; - int ptid, i; + int ptid, i, need_vpa_update; /* don't start if any threads have a signal pending */ - list_for_each_entry(vcpu, &vc->runnable_threads, arch.run_list) + need_vpa_update = 0; + list_for_each_entry(vcpu, &vc->runnable_threads, arch.run_list) { if (signal_pending(vcpu->arch.run_task)) return 0; + need_vpa_update |= vcpu->arch.vpa.update_pending | + vcpu->arch.slb_shadow.update_pending | + vcpu->arch.dtl.update_pending; + } + + /* + * Initialize *vc, in particular vc->vcore_state, so we can + * drop the vcore lock if necessary. + */ + vc->n_woken = 0; + vc->nap_count = 0; + vc->entry_exit_count = 0; + vc->vcore_state = VCORE_RUNNING; + vc->in_guest = 0; + vc->napping_threads = 0; + + /* + * Updating any of the vpas requires calling kvmppc_pin_guest_page, + * which can't be called with any spinlocks held. + */ + if (need_vpa_update) { + spin_unlock(&vc->lock); + list_for_each_entry(vcpu, &vc->runnable_threads, arch.run_list) + kvmppc_update_vpas(vcpu); + spin_lock(&vc->lock); + } /* * Make sure we are running on thread 0, and that @@ -838,20 +884,10 @@ static int kvmppc_run_core(struct kvmppc_vcore *vc) if (vcpu->arch.ceded) vcpu->arch.ptid = ptid++; - vc->n_woken = 0; - vc->nap_count = 0; - vc->entry_exit_count = 0; - vc->vcore_state = VCORE_RUNNING; vc->stolen_tb += mftb() - vc->preempt_tb; - vc->in_guest = 0; vc->pcpu = smp_processor_id(); - vc->napping_threads = 0; list_for_each_entry(vcpu, &vc->runnable_threads, arch.run_list) { kvmppc_start_thread(vcpu); - if (vcpu->arch.vpa.update_pending || - vcpu->arch.slb_shadow.update_pending || - vcpu->arch.dtl.update_pending) - kvmppc_update_vpas(vcpu); kvmppc_create_dtl_entry(vcpu, vc); } /* Grab any remaining hw threads so they can't go into the kernel */ -- cgit v1.2.3-59-g8ed1b From 0a9c63fae7df086ff5e107273c3cce8642430974 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Fri, 15 Jun 2012 13:02:58 -0400 Subject: NFSv4.1: Fix a race in set_pnfs_layoutdriver The call to try_module_get() dereferences ld_type outside the spin locks, which means that it may be pointing to garbage if a module unload was in progress. Signed-off-by: Trond Myklebust --- fs/nfs/pnfs.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c index bdf7e52943c8..bbc49caa7a82 100644 --- a/fs/nfs/pnfs.c +++ b/fs/nfs/pnfs.c @@ -70,6 +70,10 @@ find_pnfs_driver(u32 id) spin_lock(&pnfs_spinlock); local = find_pnfs_driver_locked(id); + if (local != NULL && !try_module_get(local->owner)) { + dprintk("%s: Could not grab reference on module\n", __func__); + local = NULL; + } spin_unlock(&pnfs_spinlock); return local; } @@ -118,10 +122,6 @@ set_pnfs_layoutdriver(struct nfs_server *server, const struct nfs_fh *mntfh, goto out_no_driver; } } - if (!try_module_get(ld_type->owner)) { - dprintk("%s: Could not grab reference on module\n", __func__); - goto out_no_driver; - } server->pnfs_curr_ld = ld_type; if (ld_type->set_layoutdriver && ld_type->set_layoutdriver(server, mntfh)) { -- cgit v1.2.3-59-g8ed1b From 76591bea9714a58d8924154068c78d702eb2cb17 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Fri, 15 Jun 2012 03:04:52 +0200 Subject: ath9k: fix a tx rate duration calculation bug The rate pointer variable for a rate series is used in a loop before it is initialized. This went unnoticed because it was used earlier for the RTS/CTS rate. This bug can lead to the wrong PHY type being passed to the duration calculation function. Signed-off-by: Felix Fietkau Cc: stable@kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/xmit.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index d59dd01d6cde..efb7f00f3561 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -1001,13 +1001,13 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf, } /* legacy rates */ + rate = &sc->sbands[tx_info->band].bitrates[rates[i].idx]; if ((tx_info->band == IEEE80211_BAND_2GHZ) && !(rate->flags & IEEE80211_RATE_ERP_G)) phy = WLAN_RC_PHY_CCK; else phy = WLAN_RC_PHY_OFDM; - rate = &sc->sbands[tx_info->band].bitrates[rates[i].idx]; info->rates[i].Rate = rate->hw_value; if (rate->hw_value_short) { if (rates[i].flags & IEEE80211_TX_RC_USE_SHORT_PREAMBLE) -- cgit v1.2.3-59-g8ed1b From 80b08a8d8829a58b5db14b1417151094cc28face Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Fri, 15 Jun 2012 03:04:53 +0200 Subject: ath9k: fix invalid pointer access in the tx path MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit After setup_frame_info has been called, only info->control.rates is still valid, other control fields have been overwritten by the ath_frame_info data. Move the access to info->control.vif for checking short preamble to setup_frame_info before it gets overwritten. This regression was introduced in commit d47a61aa "ath9k: Fix multi-VIF BSS handling" Signed-off-by: Felix Fietkau Reported-by: Thomas Hühn Acked-by: Sujith Manoharan Cc: stable@vger.kernel.org [3.4] Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/ath9k.h | 1 + drivers/net/wireless/ath/ath9k/xmit.c | 29 +++++++++++++++++------------ 2 files changed, 18 insertions(+), 12 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h index a277cf6f339d..4866550ddd96 100644 --- a/drivers/net/wireless/ath/ath9k/ath9k.h +++ b/drivers/net/wireless/ath/ath9k/ath9k.h @@ -214,6 +214,7 @@ struct ath_frame_info { enum ath9k_key_type keytype; u8 keyix; u8 retries; + u8 rtscts_rate; }; struct ath_buf_state { diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c index efb7f00f3561..4d571394c7a8 100644 --- a/drivers/net/wireless/ath/ath9k/xmit.c +++ b/drivers/net/wireless/ath/ath9k/xmit.c @@ -938,6 +938,7 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf, struct ieee80211_tx_rate *rates; const struct ieee80211_rate *rate; struct ieee80211_hdr *hdr; + struct ath_frame_info *fi = get_frame_info(bf->bf_mpdu); int i; u8 rix = 0; @@ -948,18 +949,7 @@ static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf, /* set dur_update_en for l-sig computation except for PS-Poll frames */ info->dur_update = !ieee80211_is_pspoll(hdr->frame_control); - - /* - * We check if Short Preamble is needed for the CTS rate by - * checking the BSS's global flag. - * But for the rate series, IEEE80211_TX_RC_USE_SHORT_PREAMBLE is used. - */ - rate = ieee80211_get_rts_cts_rate(sc->hw, tx_info); - info->rtscts_rate = rate->hw_value; - - if (tx_info->control.vif && - tx_info->control.vif->bss_conf.use_short_preamble) - info->rtscts_rate |= rate->hw_value_short; + info->rtscts_rate = fi->rtscts_rate; for (i = 0; i < 4; i++) { bool is_40, is_sgi, is_sp; @@ -1776,10 +1766,22 @@ static void setup_frame_info(struct ieee80211_hw *hw, struct sk_buff *skb, struct ieee80211_sta *sta = tx_info->control.sta; struct ieee80211_key_conf *hw_key = tx_info->control.hw_key; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; + const struct ieee80211_rate *rate; struct ath_frame_info *fi = get_frame_info(skb); struct ath_node *an = NULL; enum ath9k_key_type keytype; + bool short_preamble = false; + + /* + * We check if Short Preamble is needed for the CTS rate by + * checking the BSS's global flag. + * But for the rate series, IEEE80211_TX_RC_USE_SHORT_PREAMBLE is used. + */ + if (tx_info->control.vif && + tx_info->control.vif->bss_conf.use_short_preamble) + short_preamble = true; + rate = ieee80211_get_rts_cts_rate(hw, tx_info); keytype = ath9k_cmn_get_hw_crypto_keytype(skb); if (sta) @@ -1794,6 +1796,9 @@ static void setup_frame_info(struct ieee80211_hw *hw, struct sk_buff *skb, fi->keyix = ATH9K_TXKEYIX_INVALID; fi->keytype = keytype; fi->framelen = framelen; + fi->rtscts_rate = rate->hw_value; + if (short_preamble) + fi->rtscts_rate |= rate->hw_value_short; } u8 ath_txchainmask_reduction(struct ath_softc *sc, u8 chainmask, u32 rate) -- cgit v1.2.3-59-g8ed1b From 6617942e15a16e97a1e2e93cee26f45e26243f43 Mon Sep 17 00:00:00 2001 From: Bob Copeland Date: Fri, 15 Jun 2012 16:03:29 -0400 Subject: ath5k: remove _bh from inner locks spin_unlock_bh(&txq->lock) already disables softirqs so we don't want to do it here. Fixes smatch warnings: drivers/net/wireless/ath/ath5k/base.c:1048 ath5k_drain_tx_buffs() error: double lock 'bottom_half:' drivers/net/wireless/ath/ath5k/base.c:1056 ath5k_drain_tx_buffs() error: double unlock 'bottom_half:' Reported-by: Johannes Berg Signed-off-by: Bob Copeland Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath5k/base.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c index fbaa30930076..44ad6fe0278f 100644 --- a/drivers/net/wireless/ath/ath5k/base.c +++ b/drivers/net/wireless/ath/ath5k/base.c @@ -1045,11 +1045,11 @@ ath5k_drain_tx_buffs(struct ath5k_hw *ah) ath5k_txbuf_free_skb(ah, bf); - spin_lock_bh(&ah->txbuflock); + spin_lock(&ah->txbuflock); list_move_tail(&bf->list, &ah->txbuf); ah->txbuf_len++; txq->txq_len--; - spin_unlock_bh(&ah->txbuflock); + spin_unlock(&ah->txbuflock); } txq->link = NULL; txq->txq_poll_mark = false; -- cgit v1.2.3-59-g8ed1b From 73dc3b90232780462f3771901024a160559b4532 Mon Sep 17 00:00:00 2001 From: Avinash Patil Date: Fri, 15 Jun 2012 16:21:53 -0700 Subject: mwifiex: fix uAP TX packet timeout issue When running heavy traffic we stop the tx queue if the pending packet count reaches certain threshold. Later, the tx queue should be woken up as soon as the packet count falls below the threshold. Current code wakes TX queue up on STA interface only. Removing the check for STA interface will allow both STA and AP interfaces to resume transmit when tx_pending count becomes low. Signed-off-by: Avinash Patil Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/txrx.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/net/wireless/mwifiex/txrx.c b/drivers/net/wireless/mwifiex/txrx.c index e2faec4db108..cecb27283196 100644 --- a/drivers/net/wireless/mwifiex/txrx.c +++ b/drivers/net/wireless/mwifiex/txrx.c @@ -161,15 +161,11 @@ int mwifiex_write_data_complete(struct mwifiex_adapter *adapter, goto done; for (i = 0; i < adapter->priv_num; i++) { - tpriv = adapter->priv[i]; - if ((GET_BSS_ROLE(tpriv) == MWIFIEX_BSS_ROLE_STA) && - (tpriv->media_connected)) { - if (netif_queue_stopped(tpriv->netdev)) - mwifiex_wake_up_net_dev_queue(tpriv->netdev, - adapter); - } + if (tpriv->media_connected && + netif_queue_stopped(tpriv->netdev)) + mwifiex_wake_up_net_dev_queue(tpriv->netdev, adapter); } done: dev_kfree_skb_any(skb); -- cgit v1.2.3-59-g8ed1b From 7f59ebb5f34380696d16094fa1090485ec077fb1 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 18 Jun 2012 10:48:14 +0300 Subject: airo: copying wrong data in airo_get_aplist() "qual" used to be declared on the stack, but then in 998a5a7d6a ("airo: reduce stack memory footprint") we made it dynamically allocated. Unfortunately the memcpy() here was missed and it's still copying stack memory instead of the data that we want. In other words, "&qual" should be "qual". Signed-off-by: Dan Carpenter Signed-off-by: John W. Linville --- drivers/net/wireless/airo.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/airo.c b/drivers/net/wireless/airo.c index 520a4b2eb9cc..a747c632597a 100644 --- a/drivers/net/wireless/airo.c +++ b/drivers/net/wireless/airo.c @@ -7233,8 +7233,8 @@ static int airo_get_aplist(struct net_device *dev, } } else { dwrq->flags = 1; /* Should be define'd */ - memcpy(extra + sizeof(struct sockaddr)*i, - &qual, sizeof(struct iw_quality)*i); + memcpy(extra + sizeof(struct sockaddr) * i, qual, + sizeof(struct iw_quality) * i); } dwrq->length = i; -- cgit v1.2.3-59-g8ed1b From 858faa57dd9e2b91f3f870fbb1185982e42f5a2b Mon Sep 17 00:00:00 2001 From: Bing Zhao Date: Fri, 15 Jun 2012 15:49:54 -0700 Subject: mwifiex: fix wrong return values in add_virtual_intf() error cases add_virtual_intf() needs to return an ERR_PTR(), instead of NULL, on errors, otherwise cfg80211 will crash. Reported-by: Johannes Berg Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/cfg80211.c | 25 +++++++++++-------------- 1 file changed, 11 insertions(+), 14 deletions(-) diff --git a/drivers/net/wireless/mwifiex/cfg80211.c b/drivers/net/wireless/mwifiex/cfg80211.c index 015fec3371a0..ce61b6fae1c9 100644 --- a/drivers/net/wireless/mwifiex/cfg80211.c +++ b/drivers/net/wireless/mwifiex/cfg80211.c @@ -1484,7 +1484,7 @@ struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy, struct wireless_dev *wdev; if (!adapter) - return NULL; + return ERR_PTR(-EFAULT); switch (type) { case NL80211_IFTYPE_UNSPECIFIED: @@ -1494,12 +1494,12 @@ struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy, if (priv->bss_mode) { wiphy_err(wiphy, "cannot create multiple sta/adhoc ifaces\n"); - return NULL; + return ERR_PTR(-EINVAL); } wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); if (!wdev) - return NULL; + return ERR_PTR(-ENOMEM); wdev->wiphy = wiphy; priv->wdev = wdev; @@ -1522,12 +1522,12 @@ struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy, if (priv->bss_mode) { wiphy_err(wiphy, "Can't create multiple AP interfaces"); - return NULL; + return ERR_PTR(-EINVAL); } wdev = kzalloc(sizeof(struct wireless_dev), GFP_KERNEL); if (!wdev) - return NULL; + return ERR_PTR(-ENOMEM); priv->wdev = wdev; wdev->wiphy = wiphy; @@ -1544,14 +1544,15 @@ struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy, break; default: wiphy_err(wiphy, "type not supported\n"); - return NULL; + return ERR_PTR(-EINVAL); } dev = alloc_netdev_mq(sizeof(struct mwifiex_private *), name, ether_setup, 1); if (!dev) { wiphy_err(wiphy, "no memory available for netdevice\n"); - goto error; + priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; + return ERR_PTR(-ENOMEM); } mwifiex_init_priv_params(priv, dev); @@ -1582,7 +1583,9 @@ struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy, /* Register network device */ if (register_netdevice(dev)) { wiphy_err(wiphy, "cannot register virtual network device\n"); - goto error; + free_netdev(dev); + priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; + return ERR_PTR(-EFAULT); } sema_init(&priv->async_sem, 1); @@ -1594,12 +1597,6 @@ struct net_device *mwifiex_add_virtual_intf(struct wiphy *wiphy, mwifiex_dev_debugfs_init(priv); #endif return dev; -error: - if (dev && (dev->reg_state == NETREG_UNREGISTERED)) - free_netdev(dev); - priv->bss_mode = NL80211_IFTYPE_UNSPECIFIED; - - return NULL; } EXPORT_SYMBOL_GPL(mwifiex_add_virtual_intf); -- cgit v1.2.3-59-g8ed1b From 2c995ff892313009e336ecc8ec3411022f5b1c39 Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Tue, 19 Jun 2012 09:26:39 +0000 Subject: batman-adv: fix skb->data assignment skb_linearize(skb) possibly rearranges the skb internal data and then changes the skb->data pointer value. For this reason any other pointer in the code that was assigned skb->data before invoking skb_linearise(skb) must be re-assigned. In the current tt_query message handling code this is not done and therefore, in case of skb linearization, the pointer used to handle the packet header ends up in pointing to free'd memory. This bug was introduced by a73105b8d4c765d9ebfb664d0a66802127d8e4c7 (batman-adv: improved client announcement mechanism) Signed-off-by: Antonio Quartulli Cc: Signed-off-by: David S. Miller --- net/batman-adv/routing.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c index 840e2c64a301..015471d801b4 100644 --- a/net/batman-adv/routing.c +++ b/net/batman-adv/routing.c @@ -617,6 +617,8 @@ int recv_tt_query(struct sk_buff *skb, struct hard_iface *recv_if) * changes */ if (skb_linearize(skb) < 0) goto out; + /* skb_linearize() possibly changed skb->data */ + tt_query = (struct tt_query_packet *)skb->data; tt_len = tt_query->tt_data * sizeof(struct tt_change); -- cgit v1.2.3-59-g8ed1b From 5a695da26367f53a368c90435e0b883c12f02791 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 19 Jun 2012 13:39:14 -0400 Subject: NFS: Fix a refcounting issue in O_DIRECT In nfs_direct_write_reschedule(), the requests from nfs_scan_commit_list have a refcount of 2, whereas the operations in nfs_direct_write_completion_ops expect them to have a refcount of 1. This patch adds a call to release the extra references. Signed-off-by: Trond Myklebust Cc: Fred Isaman --- fs/nfs/direct.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/nfs/direct.c b/fs/nfs/direct.c index 3168f6e3d4d4..9a4cbfc85d81 100644 --- a/fs/nfs/direct.c +++ b/fs/nfs/direct.c @@ -490,6 +490,7 @@ static void nfs_direct_write_reschedule(struct nfs_direct_req *dreq) dreq->error = -EIO; spin_unlock(cinfo.lock); } + nfs_release_request(req); } nfs_pageio_complete(&desc); -- cgit v1.2.3-59-g8ed1b From 1a0de48ae56b5cdb9a46b3d3a0b578dd7f787f22 Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Tue, 19 Jun 2012 18:38:56 -0400 Subject: NFS: Initialise commit_info.rpc_out when !defined(CONFIG_NFS_V4) Signed-off-by: Trond Myklebust Cc: Fred Isaman --- fs/nfs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c index e605d695dbcb..f7296983eba6 100644 --- a/fs/nfs/inode.c +++ b/fs/nfs/inode.c @@ -1530,7 +1530,6 @@ static inline void nfs4_init_once(struct nfs_inode *nfsi) nfsi->delegation_state = 0; init_rwsem(&nfsi->rwsem); nfsi->layout = NULL; - atomic_set(&nfsi->commit_info.rpcs_out, 0); #endif } @@ -1545,6 +1544,7 @@ static void init_once(void *foo) INIT_LIST_HEAD(&nfsi->commit_info.list); nfsi->npages = 0; nfsi->commit_info.ncommit = 0; + atomic_set(&nfsi->commit_info.rpcs_out, 0); atomic_set(&nfsi->silly_count, 1); INIT_HLIST_HEAD(&nfsi->silly_list); init_waitqueue_head(&nfsi->waitqueue); -- cgit v1.2.3-59-g8ed1b From 4dd81e895655c59bd19d7a8f03a5de1310f4aeb6 Mon Sep 17 00:00:00 2001 From: Sean Hefty Date: Thu, 14 Jun 2012 20:49:09 +0000 Subject: RDMA/cma: QP type check on received REQs should be AND not OR Change || check to the intended && when checking the QP type in a received connection request against the listening endpoint. Signed-off-by: Sean Hefty Signed-off-by: Roland Dreier --- drivers/infiniband/core/cma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/core/cma.c b/drivers/infiniband/core/cma.c index 55d5642eb10a..2e826f9702c6 100644 --- a/drivers/infiniband/core/cma.c +++ b/drivers/infiniband/core/cma.c @@ -1184,7 +1184,7 @@ static void cma_set_req_event_data(struct rdma_cm_event *event, static int cma_check_req_qp_type(struct rdma_cm_id *id, struct ib_cm_event *ib_event) { - return (((ib_event->event == IB_CM_REQ_RECEIVED) || + return (((ib_event->event == IB_CM_REQ_RECEIVED) && (ib_event->param.req_rcvd.qp_type == id->qp_type)) || ((ib_event->event == IB_CM_SIDR_REQ_RECEIVED) && (id->qp_type == IB_QPT_UD)) || -- cgit v1.2.3-59-g8ed1b From 05b9afd5b711b284c17f657495dc08f4a6f6e7e9 Mon Sep 17 00:00:00 2001 From: Oleksij Rempel Date: Tue, 19 Jun 2012 22:21:18 +0200 Subject: ALSA: snd_usb_audio: ignore ctrl errors on QuickCam E3500 if this cam is pluged in, pulse audio can't initiate capture device. dmesg has lots of messages like: "cannot set freq 16000 to ep 0x86" Setting ignore_ctl_error=1 fixes this problem. Signed-off-by: Oleksij Rempel Signed-off-by: Takashi Iwai --- sound/usb/mixer_maps.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c index 41daaa24c25f..484603bbeb70 100644 --- a/sound/usb/mixer_maps.c +++ b/sound/usb/mixer_maps.c @@ -341,6 +341,10 @@ static struct usbmix_ctl_map usbmix_ctl_maps[] = { .map = audigy2nx_map, .selector_map = audigy2nx_selectors, }, + { /* Logitech, Inc. QuickCam E 3500 */ + .id = USB_ID(0x046d, 0x09a4), + .ignore_ctl_error = 1, + }, { /* Hercules DJ Console (Windows Edition) */ .id = USB_ID(0x06f8, 0xb000), -- cgit v1.2.3-59-g8ed1b From b64a1ba9d3111a7b3eb3bef96efb84dde15e6eac Mon Sep 17 00:00:00 2001 From: Oleksij Rempel Date: Tue, 19 Jun 2012 22:21:19 +0200 Subject: ALSA: snd_usb_audio: ignore ctrl errors on QuickCam Pro for Notebooks This webcam works mostly ok, exept with skype. Skype sends lots of ctrl messages to dynamically ajust record level. If for some reasons it pokes some error every thing goes broken: - first pulseaudio blocks sound for all apps - then video is reseted - then skype freez dmesg has lots of messages like: cannot set freq 16000 to ep 0x86" Setting ignore_ctl_error=1 fixes this problem. Signed-off-by: Oleksij Rempel Signed-off-by: Takashi Iwai --- sound/usb/mixer_maps.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/sound/usb/mixer_maps.c b/sound/usb/mixer_maps.c index 484603bbeb70..e71fe55cebef 100644 --- a/sound/usb/mixer_maps.c +++ b/sound/usb/mixer_maps.c @@ -341,6 +341,10 @@ static struct usbmix_ctl_map usbmix_ctl_maps[] = { .map = audigy2nx_map, .selector_map = audigy2nx_selectors, }, + { /* Logitech, Inc. QuickCam Pro for Notebooks */ + .id = USB_ID(0x046d, 0x0991), + .ignore_ctl_error = 1, + }, { /* Logitech, Inc. QuickCam E 3500 */ .id = USB_ID(0x046d, 0x09a4), .ignore_ctl_error = 1, -- cgit v1.2.3-59-g8ed1b From adc0fa413917bd973469560388446c52ce43b995 Mon Sep 17 00:00:00 2001 From: Carolyn Wyborny Date: Fri, 18 May 2012 02:07:53 +0000 Subject: igb: Fix incorrect RAR address entries for i210/i211 device. i210/i211 device has only 16 RAR address filters like 82575, instead of 32 like i350. This patch removes the entries for i210/i211 in the get_invariants function which was setting them for 32. This ensures that they will get the default value which is the correct one. Signed-off-by: Carolyn Wyborny Tested-by: Jeff Pieper Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/igb/e1000_82575.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c index e65083958421..5e84eaac48c1 100644 --- a/drivers/net/ethernet/intel/igb/e1000_82575.c +++ b/drivers/net/ethernet/intel/igb/e1000_82575.c @@ -206,8 +206,6 @@ static s32 igb_get_invariants_82575(struct e1000_hw *hw) mac->rar_entry_count = E1000_RAR_ENTRIES_82580; break; case e1000_i350: - case e1000_i210: - case e1000_i211: mac->rar_entry_count = E1000_RAR_ENTRIES_I350; break; default: -- cgit v1.2.3-59-g8ed1b From 0e808bcc483773b4bcb45f02792b24ccfa428b68 Mon Sep 17 00:00:00 2001 From: Carolyn Wyborny Date: Fri, 18 May 2012 05:40:46 +0000 Subject: Kconfig: Fix Kconfig for Intel ixgbe and igb PTP support. Fix Kconfig file to make sure that PTP and IGB/IXGBE are both either in-kernel or modules, not mixed. Having the build status mixed causes compile errors. Signed-off-by: Carolyn Wyborny Tested-by: Jeff Pieper Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/Kconfig | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/intel/Kconfig b/drivers/net/ethernet/intel/Kconfig index 79b07ec6726f..0cafe4fe9406 100644 --- a/drivers/net/ethernet/intel/Kconfig +++ b/drivers/net/ethernet/intel/Kconfig @@ -122,8 +122,10 @@ config IGB_DCA config IGB_PTP bool "PTP Hardware Clock (PHC)" - default y - depends on IGB && PTP_1588_CLOCK + default n + depends on IGB && EXPERIMENTAL + select PPS + select PTP_1588_CLOCK ---help--- Say Y here if you want to use PTP Hardware Clock (PHC) in the driver. Only the basic clock operations have been implemented. @@ -223,7 +225,9 @@ config IXGBE_DCB config IXGBE_PTP bool "PTP Clock Support" default n - depends on IXGBE && PTP_1588_CLOCK + depends on IXGBE && EXPERIMENTAL + select PPS + select PTP_1588_CLOCK ---help--- Say Y here if you want support for 1588 Timestamping with a PHC device, using the PTP 1588 Clock support. This is -- cgit v1.2.3-59-g8ed1b From 8633c0846160af0b8cfb983bbccd94ae42922af8 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Sat, 16 Jun 2012 07:31:19 +0000 Subject: ixgbe: Fix memory leak in ixgbe when receiving traffic on DDP enabled rings This patch fixes a memory leak that was introduced in the 3.4 kernel. The leak occurred when FCoE was enabled and traffic was passed over the FCoE rings reserved for FCoE. The memory leak was due to us not populating the compound page information on the order 1 pages needed for FCoE. Signed-off-by: Alexander Duyck Tested-by: Phil Schmitt Tested-by: Ross Brattain Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index 17ad6a3c1be1..cbb05d65960f 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -1148,7 +1148,7 @@ static bool ixgbe_alloc_mapped_page(struct ixgbe_ring *rx_ring, /* alloc new page for storage */ if (likely(!page)) { - page = alloc_pages(GFP_ATOMIC | __GFP_COLD, + page = alloc_pages(GFP_ATOMIC | __GFP_COLD | __GFP_COMP, ixgbe_rx_pg_order(rx_ring)); if (unlikely(!page)) { rx_ring->rx_stats.alloc_rx_page_failed++; -- cgit v1.2.3-59-g8ed1b From a5d8f4765f0e92ef027492a8cb979c5b8d45f2c3 Mon Sep 17 00:00:00 2001 From: Jonghwan Choi Date: Wed, 20 Jun 2012 17:05:37 +0900 Subject: ARM: SAMSUNG: Should check for IS_ERR(clk) instead of NULL On the error condition clk_get() returns ERR_PTR(). Signed-off-by: Jonghwan Choi Cc: Stable Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/include/plat/watchdog-reset.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/plat-samsung/include/plat/watchdog-reset.h b/arch/arm/plat-samsung/include/plat/watchdog-reset.h index f19aff19205c..bc4db9b04e36 100644 --- a/arch/arm/plat-samsung/include/plat/watchdog-reset.h +++ b/arch/arm/plat-samsung/include/plat/watchdog-reset.h @@ -25,7 +25,7 @@ static inline void arch_wdt_reset(void) __raw_writel(0, S3C2410_WTCON); /* disable watchdog, to be safe */ - if (s3c2410_wdtclk) + if (!IS_ERR(s3c2410_wdtclk)) clk_enable(s3c2410_wdtclk); /* put initial values into count and data */ -- cgit v1.2.3-59-g8ed1b From 32103c7ba7d274bcb3ace48bc3366e1df37ebb56 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 20 Jun 2012 11:30:25 +0200 Subject: ARM: shmobile: sh73a0: bugfix: SY-DMAC number 681e1b3eeb3606e06a7c4984e8058df84296f8bb (ARM: mach-shmobile: sh73a0 DMA Engine support for SY-DMAC) adds SY-DMAC, but it is 218, not 318 This patch is based on v2.0 manual Signed-off-by: Kuninori Morimoto Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/clock-sh73a0.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-shmobile/clock-sh73a0.c b/arch/arm/mach-shmobile/clock-sh73a0.c index 472d1f5361e5..3946c4ba2aa8 100644 --- a/arch/arm/mach-shmobile/clock-sh73a0.c +++ b/arch/arm/mach-shmobile/clock-sh73a0.c @@ -475,9 +475,9 @@ static struct clk *late_main_clks[] = { enum { MSTP001, MSTP129, MSTP128, MSTP127, MSTP126, MSTP125, MSTP118, MSTP116, MSTP100, - MSTP219, + MSTP219, MSTP218, MSTP207, MSTP206, MSTP204, MSTP203, MSTP202, MSTP201, MSTP200, - MSTP331, MSTP329, MSTP325, MSTP323, MSTP318, + MSTP331, MSTP329, MSTP325, MSTP323, MSTP314, MSTP313, MSTP312, MSTP311, MSTP303, MSTP302, MSTP301, MSTP300, MSTP411, MSTP410, MSTP403, @@ -497,6 +497,7 @@ static struct clk mstp_clks[MSTP_NR] = { [MSTP116] = MSTP(&div4_clks[DIV4_HP], SMSTPCR1, 16, 0), /* IIC0 */ [MSTP100] = MSTP(&div4_clks[DIV4_B], SMSTPCR1, 0, 0), /* LCDC0 */ [MSTP219] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 19, 0), /* SCIFA7 */ + [MSTP218] = MSTP(&div4_clks[DIV4_HP], SMSTPCR2, 18, 0), /* SY-DMAC */ [MSTP207] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 7, 0), /* SCIFA5 */ [MSTP206] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 6, 0), /* SCIFB */ [MSTP204] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR2, 4, 0), /* SCIFA0 */ @@ -508,7 +509,6 @@ static struct clk mstp_clks[MSTP_NR] = { [MSTP329] = MSTP(&r_clk, SMSTPCR3, 29, 0), /* CMT10 */ [MSTP325] = MSTP(&div6_clks[DIV6_SUB], SMSTPCR3, 25, 0), /* IrDA */ [MSTP323] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 23, 0), /* IIC1 */ - [MSTP318] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 18, 0), /* SY-DMAC */ [MSTP314] = MSTP(&div6_clks[DIV6_SDHI0], SMSTPCR3, 14, 0), /* SDHI0 */ [MSTP313] = MSTP(&div6_clks[DIV6_SDHI1], SMSTPCR3, 13, 0), /* SDHI1 */ [MSTP312] = MSTP(&div4_clks[DIV4_HP], SMSTPCR3, 12, 0), /* MMCIF0 */ @@ -552,6 +552,7 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("i2c-sh_mobile.0", &mstp_clks[MSTP116]), /* I2C0 */ CLKDEV_DEV_ID("sh_mobile_lcdc_fb.0", &mstp_clks[MSTP100]), /* LCDC0 */ CLKDEV_DEV_ID("sh-sci.7", &mstp_clks[MSTP219]), /* SCIFA7 */ + CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP218]), /* SY-DMAC */ CLKDEV_DEV_ID("sh-sci.5", &mstp_clks[MSTP207]), /* SCIFA5 */ CLKDEV_DEV_ID("sh-sci.8", &mstp_clks[MSTP206]), /* SCIFB */ CLKDEV_DEV_ID("sh-sci.0", &mstp_clks[MSTP204]), /* SCIFA0 */ @@ -563,7 +564,6 @@ static struct clk_lookup lookups[] = { CLKDEV_DEV_ID("sh_cmt.10", &mstp_clks[MSTP329]), /* CMT10 */ CLKDEV_DEV_ID("sh_irda.0", &mstp_clks[MSTP325]), /* IrDA */ CLKDEV_DEV_ID("i2c-sh_mobile.1", &mstp_clks[MSTP323]), /* I2C1 */ - CLKDEV_DEV_ID("sh-dma-engine.0", &mstp_clks[MSTP318]), /* SY-DMAC */ CLKDEV_DEV_ID("sh_mobile_sdhi.0", &mstp_clks[MSTP314]), /* SDHI0 */ CLKDEV_DEV_ID("sh_mobile_sdhi.1", &mstp_clks[MSTP313]), /* SDHI1 */ CLKDEV_DEV_ID("sh_mmcif.0", &mstp_clks[MSTP312]), /* MMCIF0 */ -- cgit v1.2.3-59-g8ed1b From 4d6344f3c943a5ff1fd8dcbd7be61ebdef1d0285 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 20 Jun 2012 11:30:32 +0200 Subject: ARM: shmobile: sh7372: bugfix: chclr_offset base chclr_write() will use (chan_reg + chclr_offset). In sh7372 case, DMA1CHCLR is started from 0xfe008220, and chan_reg is started from 0xfe008020 (= sh7372_dmae0_resources). Thus, chclr_offset should be (0x220 - 0x20) instead of 0x220. Signed-off-by: Kuninori Morimoto Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/setup-sh7372.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-shmobile/setup-sh7372.c b/arch/arm/mach-shmobile/setup-sh7372.c index 6a4bd582c028..fafce9ce8218 100644 --- a/arch/arm/mach-shmobile/setup-sh7372.c +++ b/arch/arm/mach-shmobile/setup-sh7372.c @@ -484,7 +484,7 @@ static const struct sh_dmae_slave_config sh7372_dmae_slaves[] = { }, }; -#define SH7372_CHCLR 0x220 +#define SH7372_CHCLR (0x220 - 0x20) static const struct sh_dmae_channel sh7372_dmae_channels[] = { { -- cgit v1.2.3-59-g8ed1b From 6ae42bb22b40254e6488bbfe47f970620ab6d433 Mon Sep 17 00:00:00 2001 From: Nobuhiro Iwamatsu Date: Wed, 20 Jun 2012 11:30:41 +0200 Subject: ARM: mach-shmobile: Fix build when SMP is enabled and EMEV2 is not enabled Build failed, when SMP is enabled and EMEV2 is not enabled. arch/arm/mach-shmobile/built-in.o: In function `shmobile_platform_cpu_kill': /home/iwamatsu/work/kernel/sh-2.6-devel/arch/arm/mach-shmobile/platsmp.c:62: undefined reference to `emev2_platform_cpu_kill' arch/arm/mach-shmobile/built-in.o: In function `shmobile_smp_get_core_count': /home/iwamatsu/work/kernel/sh-2.6-devel/arch/arm/mach-shmobile/platsmp.c:39: undefined reference to `emev2_get_core_count' arch/arm/mach-shmobile/built-in.o: In function `shmobile_smp_prepare_cpus': /home/iwamatsu/work/kernel/sh-2.6-devel/arch/arm/mach-shmobile/platsmp.c:53: undefined reference to `emev2_smp_prepare_cpus' arch/arm/mach-shmobile/built-in.o: In function `platform_secondary_init': /home/iwamatsu/work/kernel/sh-2.6-devel/arch/arm/mach-shmobile/platsmp.c:78: undefined reference to `emev2_secondary_init' arch/arm/mach-shmobile/built-in.o: In function `boot_secondary': /home/iwamatsu/work/kernel/sh-2.6-devel/arch/arm/mach-shmobile/platsmp.c:90: undefined reference to `emev2_boot_secondary This is the cause by when EMEV2 is disabled, that the check by OF of EMEV2 is performed in platsmp.c. This patch revise what the function about EMEV2 may not be used in this file, when EMEV2 is not enabled. Signed-off-by: Nobuhiro Iwamatsu Acked-by: Simon Horman Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/platsmp.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/mach-shmobile/platsmp.c b/arch/arm/mach-shmobile/platsmp.c index bacdd667e3b1..e859fcdb3d58 100644 --- a/arch/arm/mach-shmobile/platsmp.c +++ b/arch/arm/mach-shmobile/platsmp.c @@ -25,7 +25,12 @@ #define is_sh73a0() (machine_is_ag5evm() || machine_is_kota2() || \ of_machine_is_compatible("renesas,sh73a0")) #define is_r8a7779() machine_is_marzen() + +#ifdef CONFIG_ARCH_EMEV2 #define is_emev2() of_machine_is_compatible("renesas,emev2") +#else +#define is_emev2() (0) +#endif static unsigned int __init shmobile_smp_get_core_count(void) { -- cgit v1.2.3-59-g8ed1b From 56fb523f12665974bd249a39524b75b4f5e57388 Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Wed, 20 Jun 2012 12:15:59 +0200 Subject: ARM: mach-shmobile: add missing GPIO IRQ configuration on mackerel SDHI0 card-detect GPIO IRQ on mackarel currently works, because it is the default configuration of IRQ26. However, we should not rely on this and should configure the function explicitly. Signed-off-by: Guennadi Liakhovetski Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/board-mackerel.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/arm/mach-shmobile/board-mackerel.c b/arch/arm/mach-shmobile/board-mackerel.c index b577f7c44678..150122a44630 100644 --- a/arch/arm/mach-shmobile/board-mackerel.c +++ b/arch/arm/mach-shmobile/board-mackerel.c @@ -1512,6 +1512,9 @@ static void __init mackerel_init(void) gpio_request(GPIO_FN_SDHID0_1, NULL); gpio_request(GPIO_FN_SDHID0_0, NULL); + /* SDHI0 PORT172 card-detect IRQ26 */ + gpio_request(GPIO_FN_IRQ26_172, NULL); + #if !defined(CONFIG_MMC_SH_MMCIF) && !defined(CONFIG_MMC_SH_MMCIF_MODULE) /* enable SDHI1 */ gpio_request(GPIO_FN_SDHICMD1, NULL); -- cgit v1.2.3-59-g8ed1b From 8386a00f1443f676e8b614f654e2e324fdc0b3b3 Mon Sep 17 00:00:00 2001 From: Axel Lin Date: Thu, 14 Jun 2012 16:00:53 +0800 Subject: regulator: tps6524x: Fix get_voltage_sel for fixed voltage get_voltage_sel() should return selector rather than voltage. Signed-off-by: Axel Lin Signed-off-by: Mark Brown --- drivers/regulator/tps6524x-regulator.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/regulator/tps6524x-regulator.c b/drivers/regulator/tps6524x-regulator.c index b88b3df82381..1b299aacf22f 100644 --- a/drivers/regulator/tps6524x-regulator.c +++ b/drivers/regulator/tps6524x-regulator.c @@ -482,7 +482,7 @@ static int get_voltage_sel(struct regulator_dev *rdev) info = &supply_info[rdev_get_id(rdev)]; if (info->flags & FIXED_VOLTAGE) - return info->fixed_voltage; + return 0; ret = read_field(hw, &info->voltage); if (ret < 0) -- cgit v1.2.3-59-g8ed1b From 61600ef8483924039dcdec8b4717ca32bd3353c6 Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Mon, 28 May 2012 14:44:30 +0800 Subject: ceph: check PG_Private flag before accessing page->private I got lots of NULL pointer dereference Oops when compiling kernel on ceph. The bug is because the kernel page migration routine replaces some pages in the page cache with new pages, these new pages' private can be non-zero. Signed-off-by: Zheng Yan Signed-off-by: Sage Weil (cherry picked from commit 28c0254ede13ab575d2df5c6585ed3d4817c3e6b) --- fs/ceph/addr.c | 21 ++++++++++++--------- 1 file changed, 12 insertions(+), 9 deletions(-) diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 173b1d22e59b..8b67304e4b80 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -54,7 +54,12 @@ (CONGESTION_ON_THRESH(congestion_kb) - \ (CONGESTION_ON_THRESH(congestion_kb) >> 2)) - +static inline struct ceph_snap_context *page_snap_context(struct page *page) +{ + if (PagePrivate(page)) + return (void *)page->private; + return NULL; +} /* * Dirty a page. Optimistically adjust accounting, on the assumption @@ -142,10 +147,9 @@ static void ceph_invalidatepage(struct page *page, unsigned long offset) { struct inode *inode; struct ceph_inode_info *ci; - struct ceph_snap_context *snapc = (void *)page->private; + struct ceph_snap_context *snapc = page_snap_context(page); BUG_ON(!PageLocked(page)); - BUG_ON(!page->private); BUG_ON(!PagePrivate(page)); BUG_ON(!page->mapping); @@ -182,7 +186,6 @@ static int ceph_releasepage(struct page *page, gfp_t g) struct inode *inode = page->mapping ? page->mapping->host : NULL; dout("%p releasepage %p idx %lu\n", inode, page, page->index); WARN_ON(PageDirty(page)); - WARN_ON(page->private); WARN_ON(PagePrivate(page)); return 0; } @@ -443,7 +446,7 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc) osdc = &fsc->client->osdc; /* verify this is a writeable snap context */ - snapc = (void *)page->private; + snapc = page_snap_context(page); if (snapc == NULL) { dout("writepage %p page %p not dirty?\n", inode, page); goto out; @@ -451,7 +454,7 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc) oldest = get_oldest_context(inode, &snap_size); if (snapc->seq > oldest->seq) { dout("writepage %p page %p snapc %p not writeable - noop\n", - inode, page, (void *)page->private); + inode, page, snapc); /* we should only noop if called by kswapd */ WARN_ON((current->flags & PF_MEMALLOC) == 0); ceph_put_snap_context(oldest); @@ -591,7 +594,7 @@ static void writepages_finish(struct ceph_osd_request *req, clear_bdi_congested(&fsc->backing_dev_info, BLK_RW_ASYNC); - ceph_put_snap_context((void *)page->private); + ceph_put_snap_context(page_snap_context(page)); page->private = 0; ClearPagePrivate(page); dout("unlocking %d %p\n", i, page); @@ -795,7 +798,7 @@ get_more_pages: } /* only if matching snap context */ - pgsnapc = (void *)page->private; + pgsnapc = page_snap_context(page); if (pgsnapc->seq > snapc->seq) { dout("page snapc %p %lld > oldest %p %lld\n", pgsnapc, pgsnapc->seq, snapc, snapc->seq); @@ -984,7 +987,7 @@ retry_locked: BUG_ON(!ci->i_snap_realm); down_read(&mdsc->snap_rwsem); BUG_ON(!ci->i_snap_realm->cached_context); - snapc = (void *)page->private; + snapc = page_snap_context(page); if (snapc && snapc != ci->i_head_snapc) { /* * this page is already dirty in another (older) snap -- cgit v1.2.3-59-g8ed1b From 680584fab05efff732b5ae16ad601ba994d7b505 Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Mon, 4 Jun 2012 14:43:32 -0500 Subject: libceph: osd_client: don't drop reply reference too early In ceph_osdc_release_request(), a reference to the r_reply message is dropped. But just after that, that same message is revoked if it was in use to receive an incoming reply. Reorder these so we are sure we hold a reference until we're actually done with the message. Signed-off-by: Alex Elder Reviewed-by: Sage Weil (cherry picked from commit ab8cb34a4b2f60281a4b18b1f1ad23bc2313d91b) --- net/ceph/osd_client.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index 1ffebed5ce0f..13538da41dd6 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -139,8 +139,6 @@ void ceph_osdc_release_request(struct kref *kref) if (req->r_request) ceph_msg_put(req->r_request); - if (req->r_reply) - ceph_msg_put(req->r_reply); if (req->r_con_filling_msg) { dout("release_request revoking pages %p from con %p\n", req->r_pages, req->r_con_filling_msg); @@ -148,6 +146,8 @@ void ceph_osdc_release_request(struct kref *kref) req->r_reply); ceph_con_put(req->r_con_filling_msg); } + if (req->r_reply) + ceph_msg_put(req->r_reply); if (req->r_own_pages) ceph_release_page_vector(req->r_pages, req->r_num_pages); -- cgit v1.2.3-59-g8ed1b From 88ed6ea0b295f8e2383d599a04027ec596cdf97b Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Thu, 31 May 2012 20:22:18 -0700 Subject: libceph: use con get/put ops from osd_client There were a few direct calls to ceph_con_{get,put}() instead of the con ops from osd_client.c. This is a bug since those ops aren't defined to be ceph_con_get/put. This breaks refcounting on the ceph_osd structs that contain the ceph_connections, and could lead to all manner of strangeness. The purpose of the ->get and ->put methods in a ceph connection are to allow the connection to indicate it has a reference to something external to the messaging system, *not* to indicate something external has a reference to the connection. [elder@inktank.com: added that last sentence] Signed-off-by: Sage Weil Reviewed-by: Alex Elder (cherry picked from commit 0d47766f14211a73eaf54cab234db134ece79f49) --- net/ceph/osd_client.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c index 13538da41dd6..ca59e66c9787 100644 --- a/net/ceph/osd_client.c +++ b/net/ceph/osd_client.c @@ -144,7 +144,7 @@ void ceph_osdc_release_request(struct kref *kref) req->r_pages, req->r_con_filling_msg); ceph_con_revoke_message(req->r_con_filling_msg, req->r_reply); - ceph_con_put(req->r_con_filling_msg); + req->r_con_filling_msg->ops->put(req->r_con_filling_msg); } if (req->r_reply) ceph_msg_put(req->r_reply); @@ -1216,7 +1216,7 @@ static void handle_reply(struct ceph_osd_client *osdc, struct ceph_msg *msg, if (req->r_con_filling_msg == con && req->r_reply == msg) { dout(" dropping con_filling_msg ref %p\n", con); req->r_con_filling_msg = NULL; - ceph_con_put(con); + con->ops->put(con); } if (!req->r_got_reply) { @@ -2028,7 +2028,7 @@ static struct ceph_msg *get_reply(struct ceph_connection *con, dout("get_reply revoking msg %p from old con %p\n", req->r_reply, req->r_con_filling_msg); ceph_con_revoke_message(req->r_con_filling_msg, req->r_reply); - ceph_con_put(req->r_con_filling_msg); + req->r_con_filling_msg->ops->put(req->r_con_filling_msg); req->r_con_filling_msg = NULL; } @@ -2063,7 +2063,7 @@ static struct ceph_msg *get_reply(struct ceph_connection *con, #endif } *skip = 0; - req->r_con_filling_msg = ceph_con_get(con); + req->r_con_filling_msg = con->ops->get(con); dout("get_reply tid %lld %p\n", tid, m); out: -- cgit v1.2.3-59-g8ed1b From b132cf4c733f91bb4dd2277ea049243cf16e8b66 Mon Sep 17 00:00:00 2001 From: "Yan, Zheng" Date: Wed, 6 Jun 2012 19:35:55 -0500 Subject: rbd: Clear ceph_msg->bio_iter for retransmitted message The bug can cause NULL pointer dereference in write_partial_msg_pages Signed-off-by: Zheng Yan Reviewed-by: Alex Elder (cherry picked from commit 43643528cce60ca184fe8197efa8e8da7c89a037) --- net/ceph/messenger.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c index 524f4e4f598b..b332c3d76059 100644 --- a/net/ceph/messenger.c +++ b/net/ceph/messenger.c @@ -563,6 +563,10 @@ static void prepare_write_message(struct ceph_connection *con) m->hdr.seq = cpu_to_le64(++con->out_seq); m->needs_out_seq = false; } +#ifdef CONFIG_BLOCK + else + m->bio_iter = NULL; +#endif dout("prepare_write_message %p seq %lld type %d len %d+%d+%d %d pgs\n", m, con->out_seq, le16_to_cpu(m->hdr.type), -- cgit v1.2.3-59-g8ed1b From 642c0dbde32f34baa7886e988a067089992adc8f Mon Sep 17 00:00:00 2001 From: Sage Weil Date: Sun, 10 Jun 2012 20:43:56 -0700 Subject: libceph: flush msgr queue during mon_client shutdown We need to flush the msgr workqueue during mon_client shutdown to ensure that any work affecting our embedded ceph_connection is finished so that we can be safely destroyed. Previously, we were flushing the work queue after osd_client shutdown and before mon_client shutdown to ensure that any osd connection refs to authorizers are flushed. Remove the redundant flush, and document in the comment that the mon_client flush is needed to cover that case as well. Signed-off-by: Sage Weil Reviewed-by: Alex Elder (cherry picked from commit f3dea7edd3d449fe7a6d402c1ce56a294b985261) --- net/ceph/ceph_common.c | 7 ------- net/ceph/mon_client.c | 8 ++++++++ 2 files changed, 8 insertions(+), 7 deletions(-) diff --git a/net/ceph/ceph_common.c b/net/ceph/ceph_common.c index a776f751edbf..ba4323bce0e9 100644 --- a/net/ceph/ceph_common.c +++ b/net/ceph/ceph_common.c @@ -504,13 +504,6 @@ void ceph_destroy_client(struct ceph_client *client) /* unmount */ ceph_osdc_stop(&client->osdc); - /* - * make sure osd connections close out before destroying the - * auth module, which is needed to free those connections' - * ceph_authorizers. - */ - ceph_msgr_flush(); - ceph_monc_stop(&client->monc); ceph_debugfs_client_cleanup(client); diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c index 10d6008d31f2..d0649a9655be 100644 --- a/net/ceph/mon_client.c +++ b/net/ceph/mon_client.c @@ -847,6 +847,14 @@ void ceph_monc_stop(struct ceph_mon_client *monc) mutex_unlock(&monc->mutex); + /* + * flush msgr queue before we destroy ourselves to ensure that: + * - any work that references our embedded con is finished. + * - any osd_client or other work that may reference an authorizer + * finishes before we shut down the auth subsystem. + */ + ceph_msgr_flush(); + ceph_auth_destroy(monc->auth); ceph_msg_put(monc->m_auth); -- cgit v1.2.3-59-g8ed1b From 310018d52ec06c19dc946c2807c07c8b70e2d1a6 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 20 Jun 2012 07:18:15 -0700 Subject: ARM: OMAP2+: Fix MUSB ifdefs for platform init code Commit 62285963 (usb: musb: drop a gigantic amount of ifdeferry) got rid of a bunch of ifdefs in the MUSB code. Looks like the platform init code is still using these dropped defines though, which in many cases results the board defaulting always to host mode. Currently the situation is that USB_MUSB_HDRC is the main Kconfig option with additional USB_GADGET_MUSB_HDRC so only these two should be used to select between host and OTG mode. Fix the situation for omaps. The following users should fix the platform init code in a similar way: Dropped Kconfig option Current users USB_MUSB_OTG blackfin, davinci, not in Kconfigs USB_MUSB_PERIPHERAL davinci, not in Kconfigs USB_MUSB_HOST davinci, not in Kconfigs USB_MUSB_HDRC_HCD blackfin, not in Kconfigs USB_MUSB_OTG blackfin, not in Kconfigs Cc: Mike Frysinger Cc: Sekhar Nori Cc: linux-usb@vger.kernel.org Cc: Felipe Balbi Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-n8x0.c | 6 ++---- arch/arm/mach-omap2/omap_phy_internal.c | 6 ------ arch/arm/mach-omap2/usb-musb.c | 6 ++---- 3 files changed, 4 insertions(+), 14 deletions(-) diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c index 8ca14e88a31a..2c5d0ed75285 100644 --- a/arch/arm/mach-omap2/board-n8x0.c +++ b/arch/arm/mach-omap2/board-n8x0.c @@ -83,11 +83,9 @@ static struct musb_hdrc_config musb_config = { }; static struct musb_hdrc_platform_data tusb_data = { -#if defined(CONFIG_USB_MUSB_OTG) +#ifdef CONFIG_USB_GADGET_MUSB_HDRC .mode = MUSB_OTG, -#elif defined(CONFIG_USB_MUSB_PERIPHERAL) - .mode = MUSB_PERIPHERAL, -#else /* defined(CONFIG_USB_MUSB_HOST) */ +#else .mode = MUSB_HOST, #endif .set_power = tusb_set_power, diff --git a/arch/arm/mach-omap2/omap_phy_internal.c b/arch/arm/mach-omap2/omap_phy_internal.c index 4c90477e6f82..d52651a05daa 100644 --- a/arch/arm/mach-omap2/omap_phy_internal.c +++ b/arch/arm/mach-omap2/omap_phy_internal.c @@ -239,21 +239,15 @@ void am35x_set_mode(u8 musb_mode) devconf2 &= ~CONF2_OTGMODE; switch (musb_mode) { -#ifdef CONFIG_USB_MUSB_HDRC_HCD case MUSB_HOST: /* Force VBUS valid, ID = 0 */ devconf2 |= CONF2_FORCE_HOST; break; -#endif -#ifdef CONFIG_USB_GADGET_MUSB_HDRC case MUSB_PERIPHERAL: /* Force VBUS valid, ID = 1 */ devconf2 |= CONF2_FORCE_DEVICE; break; -#endif -#ifdef CONFIG_USB_MUSB_OTG case MUSB_OTG: /* Don't override the VBUS/ID comparators */ devconf2 |= CONF2_NO_OVERRIDE; break; -#endif default: pr_info(KERN_INFO "Unsupported mode %u\n", musb_mode); } diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c index b19d1b43c12e..c4a576856661 100644 --- a/arch/arm/mach-omap2/usb-musb.c +++ b/arch/arm/mach-omap2/usb-musb.c @@ -41,12 +41,10 @@ static struct musb_hdrc_config musb_config = { }; static struct musb_hdrc_platform_data musb_plat = { -#ifdef CONFIG_USB_MUSB_OTG +#ifdef CONFIG_USB_GADGET_MUSB_HDRC .mode = MUSB_OTG, -#elif defined(CONFIG_USB_MUSB_HDRC_HCD) +#else .mode = MUSB_HOST, -#elif defined(CONFIG_USB_GADGET_MUSB_HDRC) - .mode = MUSB_PERIPHERAL, #endif /* .clock is set dynamically */ .config = &musb_config, -- cgit v1.2.3-59-g8ed1b From 3d09b33fecf204561e5c7126648ec05c756c631c Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Wed, 20 Jun 2012 07:18:15 -0700 Subject: ARM: OMAP2: Fix tusb6010 GPIO interrupt for n8x0 Here's one more gpio_to_irq conversion that we missed earlier. Tested with n800 in gadget mode using USB_ETH. Cc: Felipe Balbi Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/usb-tusb6010.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/usb-tusb6010.c b/arch/arm/mach-omap2/usb-tusb6010.c index db84a46ce7fd..805bea6edf17 100644 --- a/arch/arm/mach-omap2/usb-tusb6010.c +++ b/arch/arm/mach-omap2/usb-tusb6010.c @@ -300,7 +300,7 @@ tusb6010_setup_interface(struct musb_hdrc_platform_data *data, printk(error, 3, status); return status; } - tusb_resources[2].start = irq + IH_GPIO_BASE; + tusb_resources[2].start = gpio_to_irq(irq); /* set up memory timings ... can speed them up later */ if (!ps_refclk) { -- cgit v1.2.3-59-g8ed1b From 95dca12d6bf2dd5e7720506b8f9786318899b8d6 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Tue, 12 Jun 2012 19:40:46 -0500 Subject: arm/dts: OMAP2: Fix interrupt controller binding When booting with device-tree on an OMAP2420H4, the kernel is hanging when initialising the interrupts and following kernel dumps is seen ... [ 0.000000] ------------[ cut here ]------------ [ 0.000000] WARNING: at arch/arm/mach-omap2/irq.c:271 omap_intc_of_init+0x50/0xb4() [ 0.000000] unable to get intc registers [ 0.000000] Modules linked in: [ 0.000000] [] (unwind_backtrace+0x0/0xf4) from [] (warn_slowpath_common+0x4c/0x64) [ 0.000000] [] (warn_slowpath_common+0x4c/0x64) from [] (warn_slowpath_fmt+0x30/0x40) [ 0.000000] [] (warn_slowpath_fmt+0x30/0x40) from [] (omap_intc_of_init+0x50/0xb4) [ 0.000000] [] (omap_intc_of_init+0x50/0xb4) from [] (of_irq_init+0x144/0x288) [ 0.000000] [] (of_irq_init+0x144/0x288) from [] (init_IRQ+0x14/0x1c) [ 0.000000] [] (init_IRQ+0x14/0x1c) from [] (start_kernel+0x198/0x304) [ 0.000000] [] (start_kernel+0x198/0x304) from [<80008044>] (0x80008044) [ 0.000000] ---[ end trace 1b75b31a2719ed1c ]--- [ 0.000000] of_irq_init: children remain, but no parents The OMAP2 interrupt controller binding is missing the number of interrupts and interrupt controller register address. Adding these fixes the problem. Signed-off-by: Jon Hunter Signed-off-by: Tony Lindgren --- arch/arm/boot/dts/omap2.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/boot/dts/omap2.dtsi b/arch/arm/boot/dts/omap2.dtsi index f2ab4ea7cc0e..581cb081cb0f 100644 --- a/arch/arm/boot/dts/omap2.dtsi +++ b/arch/arm/boot/dts/omap2.dtsi @@ -44,6 +44,8 @@ compatible = "ti,omap2-intc"; interrupt-controller; #interrupt-cells = <1>; + ti,intc-size = <96>; + reg = <0x480FE000 0x1000>; }; uart1: serial@4806a000 { -- cgit v1.2.3-59-g8ed1b From aef2b89662b8a7506846d0dc0df672d196ddf8d0 Mon Sep 17 00:00:00 2001 From: Russ Dill Date: Wed, 9 May 2012 15:15:03 -0700 Subject: ARM: OMAP: Fix Beagleboard DVI reset gpio Commit e813a55eb9c9bc6c8039fb16332cf43402125b30 ("OMAP: board-files: remove custom PD GPIO handling for DVI output") moved TFP410 chip's powerdown-gpio handling from the board files to the tfp410 driver. One gpio_request_one(powerdown-gpio, ...) was mistakenly left unremoved in the Beagle board file. This causes the tfp410 driver to fail to request the gpio on Beagle, causing the driver to fail and thus the DVI output doesn't work. This patch removes several boot errors from board-omap3beagle.c: - gpio_request: gpio--22 (DVI reset) status -22 - Unable to get DVI reset GPIO There is a combination of leftover code and revision confusion. Additionally, xM support is currently a hack. For original Beagleboard this removes the double initialization of GPIO 170, properly configures it as an output, and wraps the initialization in an if block so that xM does not attempt to request it. For Beagleboard xM it removes reference to GPIO 129 which was part of rev A1 and A2 designs, but never functioned. It then properly assigns beagle_dvi_device.reset_gpio in beagle_twl_gpio_setup and removes the hack of initializing it high. Additionally, it uses gpio_set_value_cansleep since this GPIO is connected through i2c. Unfortunately, there is no way to tell the difference between xM A2 and A3. However, GPIO 129 does not function on rev A1 and A2, and the TWL GPIO used on A3 and beyond is not used on rev A1 and A2, there are no problems created by this fix. Tested on Beagleboard-xM Rev C1 and Beagleboard Rev B4. Signed-off-by: Russ Dill Acked-by: Tomi Valkeinen Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-omap3beagle.c | 28 ++++++++++++---------------- 1 file changed, 12 insertions(+), 16 deletions(-) diff --git a/arch/arm/mach-omap2/board-omap3beagle.c b/arch/arm/mach-omap2/board-omap3beagle.c index 79c6909eeb78..580fd17208da 100644 --- a/arch/arm/mach-omap2/board-omap3beagle.c +++ b/arch/arm/mach-omap2/board-omap3beagle.c @@ -81,13 +81,13 @@ static u8 omap3_beagle_version; static struct { int mmc1_gpio_wp; int usb_pwr_level; - int reset_gpio; + int dvi_pd_gpio; int usr_button_gpio; int mmc_caps; } beagle_config = { .mmc1_gpio_wp = -EINVAL, .usb_pwr_level = GPIOF_OUT_INIT_LOW, - .reset_gpio = 129, + .dvi_pd_gpio = -EINVAL, .usr_button_gpio = 4, .mmc_caps = MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA, }; @@ -126,21 +126,21 @@ static void __init omap3_beagle_init_rev(void) printk(KERN_INFO "OMAP3 Beagle Rev: Ax/Bx\n"); omap3_beagle_version = OMAP3BEAGLE_BOARD_AXBX; beagle_config.mmc1_gpio_wp = 29; - beagle_config.reset_gpio = 170; + beagle_config.dvi_pd_gpio = 170; beagle_config.usr_button_gpio = 7; break; case 6: printk(KERN_INFO "OMAP3 Beagle Rev: C1/C2/C3\n"); omap3_beagle_version = OMAP3BEAGLE_BOARD_C1_3; beagle_config.mmc1_gpio_wp = 23; - beagle_config.reset_gpio = 170; + beagle_config.dvi_pd_gpio = 170; beagle_config.usr_button_gpio = 7; break; case 5: printk(KERN_INFO "OMAP3 Beagle Rev: C4\n"); omap3_beagle_version = OMAP3BEAGLE_BOARD_C4; beagle_config.mmc1_gpio_wp = 23; - beagle_config.reset_gpio = 170; + beagle_config.dvi_pd_gpio = 170; beagle_config.usr_button_gpio = 7; break; case 0: @@ -274,11 +274,9 @@ static int beagle_twl_gpio_setup(struct device *dev, if (r) pr_err("%s: unable to configure nDVI_PWR_EN\n", __func__); - r = gpio_request_one(gpio + 2, GPIOF_OUT_INIT_HIGH, - "DVI_LDO_EN"); - if (r) - pr_err("%s: unable to configure DVI_LDO_EN\n", - __func__); + + beagle_config.dvi_pd_gpio = gpio + 2; + } else { /* * REVISIT: need ehci-omap hooks for external VBUS @@ -287,7 +285,7 @@ static int beagle_twl_gpio_setup(struct device *dev, if (gpio_request_one(gpio + 1, GPIOF_IN, "EHCI_nOC")) pr_err("%s: unable to configure EHCI_nOC\n", __func__); } - dvi_panel.power_down_gpio = beagle_config.reset_gpio; + dvi_panel.power_down_gpio = beagle_config.dvi_pd_gpio; gpio_request_one(gpio + TWL4030_GPIO_MAX, beagle_config.usb_pwr_level, "nEN_USB_PWR"); @@ -499,7 +497,7 @@ static void __init omap3_beagle_init(void) omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); omap3_beagle_init_rev(); - if (beagle_config.mmc1_gpio_wp != -EINVAL) + if (gpio_is_valid(beagle_config.mmc1_gpio_wp)) omap_mux_init_gpio(beagle_config.mmc1_gpio_wp, OMAP_PIN_INPUT); mmc[0].caps = beagle_config.mmc_caps; omap_hsmmc_init(mmc); @@ -510,15 +508,13 @@ static void __init omap3_beagle_init(void) platform_add_devices(omap3_beagle_devices, ARRAY_SIZE(omap3_beagle_devices)); + if (gpio_is_valid(beagle_config.dvi_pd_gpio)) + omap_mux_init_gpio(beagle_config.dvi_pd_gpio, OMAP_PIN_OUTPUT); omap_display_init(&beagle_dss_data); omap_serial_init(); omap_sdrc_init(mt46h32m32lf6_sdrc_params, mt46h32m32lf6_sdrc_params); - omap_mux_init_gpio(170, OMAP_PIN_INPUT); - /* REVISIT leave DVI powered down until it's needed ... */ - gpio_request_one(170, GPIOF_OUT_INIT_HIGH, "DVI_nPD"); - usb_musb_init(NULL); usbhs_init(&usbhs_bdata); omap_nand_flash_init(NAND_BUSWIDTH_16, omap3beagle_nand_partitions, -- cgit v1.2.3-59-g8ed1b From cae6247db0b93673d170bc0e02aff85f53bc422c Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Sat, 16 Jun 2012 22:26:46 +0300 Subject: wl1251: fix TSF calculation Cast MSB part of current TSF to u64 to prevent loss of most significant bits. MSB should also be shifted by 32. Patch based on old maemo patch by: Yuri Kululin Yuri Ershov Signed-off-by: Grazvydas Ignotas Signed-off-by: John W. Linville --- drivers/net/wireless/ti/wl1251/acx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ti/wl1251/acx.c b/drivers/net/wireless/ti/wl1251/acx.c index ad87a1ac6462..db6430c1a084 100644 --- a/drivers/net/wireless/ti/wl1251/acx.c +++ b/drivers/net/wireless/ti/wl1251/acx.c @@ -869,7 +869,7 @@ int wl1251_acx_tsf_info(struct wl1251 *wl, u64 *mactime) } *mactime = tsf_info->current_tsf_lsb | - (tsf_info->current_tsf_msb << 31); + ((u64)tsf_info->current_tsf_msb << 32); out: kfree(tsf_info); -- cgit v1.2.3-59-g8ed1b From 0d776fcdafed91403b1f453473771664ef7a66bd Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Sat, 16 Jun 2012 22:26:47 +0300 Subject: wl1251: always report beacon loss to the stack Always report beacon loss to the stack, not only when in powersave state. This is because there's possibility that the driver disables PSM before it handles old BSS_LOSE_EVENT, so beacon loss has to be reported. Patch based on old maemo patch by: Janne Ylalehto Juuso Oikarinen Luciano Coelho Yuri Ershov Signed-off-by: Grazvydas Ignotas Signed-off-by: John W. Linville --- drivers/net/wireless/ti/wl1251/event.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/net/wireless/ti/wl1251/event.c b/drivers/net/wireless/ti/wl1251/event.c index 9f15ccaf8f05..5ec50a476a69 100644 --- a/drivers/net/wireless/ti/wl1251/event.c +++ b/drivers/net/wireless/ti/wl1251/event.c @@ -76,8 +76,7 @@ static int wl1251_event_process(struct wl1251 *wl, struct event_mailbox *mbox) } } - if (vector & SYNCHRONIZATION_TIMEOUT_EVENT_ID && - wl->station_mode != STATION_ACTIVE_MODE) { + if (vector & SYNCHRONIZATION_TIMEOUT_EVENT_ID) { wl1251_debug(DEBUG_EVENT, "SYNCHRONIZATION_TIMEOUT_EVENT"); /* indicate to the stack, that beacons have been lost */ -- cgit v1.2.3-59-g8ed1b From a859e4d6590b2429f518aa712b9e3edd367398d7 Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Sat, 16 Jun 2012 22:26:48 +0300 Subject: wl1251: Fix memory leaks in SPI initialization This patch fixes two memory leaks in the SPI initialization code. Patch based on old maemo patch by: Yuri Ershov Signed-off-by: Grazvydas Ignotas Signed-off-by: John W. Linville --- drivers/net/wireless/ti/wl1251/spi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/wireless/ti/wl1251/spi.c b/drivers/net/wireless/ti/wl1251/spi.c index 87f6305bda2c..567660cd2fcd 100644 --- a/drivers/net/wireless/ti/wl1251/spi.c +++ b/drivers/net/wireless/ti/wl1251/spi.c @@ -73,6 +73,8 @@ static void wl1251_spi_reset(struct wl1251 *wl) spi_sync(wl_to_spi(wl), &m); wl1251_dump(DEBUG_SPI, "spi reset -> ", cmd, WSPI_INIT_CMD_LEN); + + kfree(cmd); } static void wl1251_spi_wake(struct wl1251 *wl) @@ -127,6 +129,8 @@ static void wl1251_spi_wake(struct wl1251 *wl) spi_sync(wl_to_spi(wl), &m); wl1251_dump(DEBUG_SPI, "spi init -> ", cmd, WSPI_INIT_CMD_LEN); + + kfree(cmd); } static void wl1251_spi_reset_wake(struct wl1251 *wl) -- cgit v1.2.3-59-g8ed1b From f18e3c6b67f448ec47b3a5b242789bd3d5644879 Mon Sep 17 00:00:00 2001 From: Mohammed Shafi Shajakhan Date: Mon, 18 Jun 2012 13:13:30 +0530 Subject: ath9k_hw: avoid possible infinite loop in ar9003_get_pll_sqsum_dvc "ath9k: Fix softlockup in AR9485" with commit id 64bc1239c790e051ff677e023435d770d2ffa174 fixed the reported issue, yet its better to avoid the possible infinite loop in ar9003_get_pll_sqsum_dvc by having a timeout as suggested by ath9k maintainers. http://www.spinics.net/lists/linux-wireless/msg92126.html. Based on my testing PLL's locking measurement is done in ~200us (2 iterations). Cc: stable@vger.kernel.org Cc: Rolf Offermanns Cc: Sujith Manoharan Cc: Senthil Balasubramanian Signed-off-by: Mohammed Shafi Shajakhan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/hw.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 7db1890448f2..1c68e564f503 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -784,13 +784,25 @@ static void ath9k_hw_init_qos(struct ath_hw *ah) u32 ar9003_get_pll_sqsum_dvc(struct ath_hw *ah) { + struct ath_common *common = ath9k_hw_common(ah); + int i = 0; + REG_CLR_BIT(ah, PLL3, PLL3_DO_MEAS_MASK); udelay(100); REG_SET_BIT(ah, PLL3, PLL3_DO_MEAS_MASK); - while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0) + while ((REG_READ(ah, PLL4) & PLL4_MEAS_DONE) == 0) { + udelay(100); + if (WARN_ON_ONCE(i >= 100)) { + ath_err(common, "PLL4 meaurement not done\n"); + break; + } + + i++; + } + return (REG_READ(ah, PLL3) & SQSUM_DVC_MASK) >> 3; } EXPORT_SYMBOL(ar9003_get_pll_sqsum_dvc); -- cgit v1.2.3-59-g8ed1b From 882b7b7d11d65e8eccce738f1ce97cdfdb998f9f Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 20 Jun 2012 08:46:25 +0200 Subject: iwlwifi: remove log_event debugfs file debugging is disabled When debugging is disabled, the event log functions aren't functional in the way that the debugfs file expects. This leads to the debugfs access crashing. Since the event log functions aren't functional then, remove the debugfs file when CONFIG_IWLWIFI_DEBUG is not set. Cc: stable@kernel.org Reported-by: Lekensteyn Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-debugfs.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/iwl-debugfs.c b/drivers/net/wireless/iwlwifi/iwl-debugfs.c index e7c157e5ebeb..7f97dec8534d 100644 --- a/drivers/net/wireless/iwlwifi/iwl-debugfs.c +++ b/drivers/net/wireless/iwlwifi/iwl-debugfs.c @@ -2239,6 +2239,7 @@ static ssize_t iwl_dbgfs_echo_test_write(struct file *file, return count; } +#ifdef CONFIG_IWLWIFI_DEBUG static ssize_t iwl_dbgfs_log_event_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) @@ -2276,6 +2277,7 @@ static ssize_t iwl_dbgfs_log_event_write(struct file *file, return count; } +#endif static ssize_t iwl_dbgfs_calib_disabled_read(struct file *file, char __user *user_buf, @@ -2345,7 +2347,9 @@ DEBUGFS_READ_FILE_OPS(bt_traffic); DEBUGFS_READ_WRITE_FILE_OPS(protection_mode); DEBUGFS_READ_FILE_OPS(reply_tx_error); DEBUGFS_WRITE_FILE_OPS(echo_test); +#ifdef CONFIG_IWLWIFI_DEBUG DEBUGFS_READ_WRITE_FILE_OPS(log_event); +#endif DEBUGFS_READ_WRITE_FILE_OPS(calib_disabled); /* @@ -2405,7 +2409,9 @@ int iwl_dbgfs_register(struct iwl_priv *priv, const char *name) DEBUGFS_ADD_FILE(rxon_flags, dir_debug, S_IWUSR); DEBUGFS_ADD_FILE(rxon_filter_flags, dir_debug, S_IWUSR); DEBUGFS_ADD_FILE(echo_test, dir_debug, S_IWUSR); +#ifdef CONFIG_IWLWIFI_DEBUG DEBUGFS_ADD_FILE(log_event, dir_debug, S_IWUSR | S_IRUSR); +#endif if (iwl_advanced_bt_coexist(priv)) DEBUGFS_ADD_FILE(bt_traffic, dir_debug, S_IRUSR); -- cgit v1.2.3-59-g8ed1b From 931cb03afed7b541392295f3afc4638da32f08a0 Mon Sep 17 00:00:00 2001 From: Rajkumar Manoharan Date: Wed, 20 Jun 2012 16:29:20 +0530 Subject: ath9k_htc: configure bssid on ASSOC/IBSS change After the change "mac80211: remove spurious BSSID change flag", BSS_CHANGED_BSSID will not be passed on association or IBSS status changes. So it could be better to program bssid on ASSOC or IBSS change notification. Not doing so, is affecting the packet transmission. Cc: stable@vger.kernel.org [3.4+] Reported-by: Michael Leun Signed-off-by: Rajkumar Manoharan Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/htc_drv_main.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c index 2b8f61c210e1..abbd6effd60d 100644 --- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c +++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c @@ -1496,6 +1496,7 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw, priv->num_sta_assoc_vif++ : priv->num_sta_assoc_vif--; if (priv->ah->opmode == NL80211_IFTYPE_STATION) { + ath9k_htc_choose_set_bssid(priv); if (bss_conf->assoc && (priv->num_sta_assoc_vif == 1)) ath9k_htc_start_ani(priv); else if (priv->num_sta_assoc_vif == 0) @@ -1503,13 +1504,11 @@ static void ath9k_htc_bss_info_changed(struct ieee80211_hw *hw, } } - if (changed & BSS_CHANGED_BSSID) { + if (changed & BSS_CHANGED_IBSS) { if (priv->ah->opmode == NL80211_IFTYPE_ADHOC) { common->curaid = bss_conf->aid; memcpy(common->curbssid, bss_conf->bssid, ETH_ALEN); ath9k_htc_set_bssid(priv); - } else if (priv->ah->opmode == NL80211_IFTYPE_STATION) { - ath9k_htc_choose_set_bssid(priv); } } -- cgit v1.2.3-59-g8ed1b From b1027439dff844675f6c0df97a1b1d190791a699 Mon Sep 17 00:00:00 2001 From: Bryan Schumaker Date: Wed, 20 Jun 2012 14:35:28 -0400 Subject: NFS: Force the legacy idmapper to be single threaded It was initially coded under the assumption that there would only be one request at a time, so use a lock to enforce this requirement.. Signed-off-by: Bryan Schumaker CC: stable@vger.kernel.org [3.4+] Signed-off-by: Trond Myklebust --- fs/nfs/idmap.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c index b5b86a05059c..864c51e4b400 100644 --- a/fs/nfs/idmap.c +++ b/fs/nfs/idmap.c @@ -57,6 +57,11 @@ unsigned int nfs_idmap_cache_timeout = 600; static const struct cred *id_resolver_cache; static struct key_type key_type_id_resolver_legacy; +struct idmap { + struct rpc_pipe *idmap_pipe; + struct key_construction *idmap_key_cons; + struct mutex idmap_mutex; +}; /** * nfs_fattr_init_names - initialise the nfs_fattr owner_name/group_name fields @@ -310,9 +315,11 @@ static ssize_t nfs_idmap_get_key(const char *name, size_t namelen, name, namelen, type, data, data_size, NULL); if (ret < 0) { + mutex_lock(&idmap->idmap_mutex); ret = nfs_idmap_request_key(&key_type_id_resolver_legacy, name, namelen, type, data, data_size, idmap); + mutex_unlock(&idmap->idmap_mutex); } return ret; } @@ -354,11 +361,6 @@ static int nfs_idmap_lookup_id(const char *name, size_t namelen, const char *typ /* idmap classic begins here */ module_param(nfs_idmap_cache_timeout, int, 0644); -struct idmap { - struct rpc_pipe *idmap_pipe; - struct key_construction *idmap_key_cons; -}; - enum { Opt_find_uid, Opt_find_gid, Opt_find_user, Opt_find_group, Opt_find_err }; @@ -469,6 +471,7 @@ nfs_idmap_new(struct nfs_client *clp) return error; } idmap->idmap_pipe = pipe; + mutex_init(&idmap->idmap_mutex); clp->cl_idmap = idmap; return 0; -- cgit v1.2.3-59-g8ed1b From 3dca938656c7b0ff6b0717a5dde0f5f45e592be5 Mon Sep 17 00:00:00 2001 From: Jose Miguel Goncalves Date: Sat, 12 May 2012 06:11:49 +0900 Subject: ARM: SAMSUNG: Fix for S3C2412 EBI memory mapping While upgrading the kernel on a S3C2412 based board I've noted that it was impossible to boot the board with a 2.6.32 or upper kernel. I've tracked down the problem to the EBI virtual memory mapping that is in conflict with the IO mapping definition in arch/arm/mach-s3c24xx/s3c2412.c. Signed-off-by: Jose Miguel Goncalves Cc: Stable Signed-off-by: Kukjin Kim --- arch/arm/plat-samsung/include/plat/map-s3c.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/plat-samsung/include/plat/map-s3c.h b/arch/arm/plat-samsung/include/plat/map-s3c.h index 7d048759b772..c0c70a895ca8 100644 --- a/arch/arm/plat-samsung/include/plat/map-s3c.h +++ b/arch/arm/plat-samsung/include/plat/map-s3c.h @@ -22,7 +22,7 @@ #define S3C24XX_VA_WATCHDOG S3C_VA_WATCHDOG #define S3C2412_VA_SSMC S3C_ADDR_CPU(0x00000000) -#define S3C2412_VA_EBI S3C_ADDR_CPU(0x00010000) +#define S3C2412_VA_EBI S3C_ADDR_CPU(0x00100000) #define S3C2410_PA_UART (0x50000000) #define S3C24XX_PA_UART S3C2410_PA_UART -- cgit v1.2.3-59-g8ed1b From b7019b2f31fe7bec9f6f5dc1bf54cb0e0d73e047 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 14 Jun 2012 15:58:25 -0400 Subject: drm/radeon: SI tiling fixes for display MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit - Use the correct union for getting the tiling info - Properly init the PIPE_CONFIG field for SI Signed-off-by: Alex Deucher Reviewed-by: Michel Dänzer Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/atombios_crtc.c | 10 ++++- drivers/gpu/drm/radeon/si_reg.h | 72 ++++++++++++++++++++++++++++++++++ 2 files changed, 81 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c index 01d77d1554f4..3904d7964a4b 100644 --- a/drivers/gpu/drm/radeon/atombios_crtc.c +++ b/drivers/gpu/drm/radeon/atombios_crtc.c @@ -1149,7 +1149,9 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc, } if (tiling_flags & RADEON_TILING_MACRO) { - if (rdev->family >= CHIP_CAYMAN) + if (rdev->family >= CHIP_TAHITI) + tmp = rdev->config.si.tile_config; + else if (rdev->family >= CHIP_CAYMAN) tmp = rdev->config.cayman.tile_config; else tmp = rdev->config.evergreen.tile_config; @@ -1177,6 +1179,12 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc, } else if (tiling_flags & RADEON_TILING_MICRO) fb_format |= EVERGREEN_GRPH_ARRAY_MODE(EVERGREEN_GRPH_ARRAY_1D_TILED_THIN1); + if ((rdev->family == CHIP_TAHITI) || + (rdev->family == CHIP_PITCAIRN)) + fb_format |= SI_GRPH_PIPE_CONFIG(SI_ADDR_SURF_P8_32x32_8x16); + else if (rdev->family == CHIP_VERDE) + fb_format |= SI_GRPH_PIPE_CONFIG(SI_ADDR_SURF_P4_8x16); + switch (radeon_crtc->crtc_id) { case 0: WREG32(AVIVO_D1VGA_CONTROL, 0); diff --git a/drivers/gpu/drm/radeon/si_reg.h b/drivers/gpu/drm/radeon/si_reg.h index eda938a7cb6e..501f9d431d57 100644 --- a/drivers/gpu/drm/radeon/si_reg.h +++ b/drivers/gpu/drm/radeon/si_reg.h @@ -30,4 +30,76 @@ #define SI_DC_GPIO_HPD_EN 0x65b8 #define SI_DC_GPIO_HPD_Y 0x65bc +#define SI_GRPH_CONTROL 0x6804 +# define SI_GRPH_DEPTH(x) (((x) & 0x3) << 0) +# define SI_GRPH_DEPTH_8BPP 0 +# define SI_GRPH_DEPTH_16BPP 1 +# define SI_GRPH_DEPTH_32BPP 2 +# define SI_GRPH_NUM_BANKS(x) (((x) & 0x3) << 2) +# define SI_ADDR_SURF_2_BANK 0 +# define SI_ADDR_SURF_4_BANK 1 +# define SI_ADDR_SURF_8_BANK 2 +# define SI_ADDR_SURF_16_BANK 3 +# define SI_GRPH_Z(x) (((x) & 0x3) << 4) +# define SI_GRPH_BANK_WIDTH(x) (((x) & 0x3) << 6) +# define SI_ADDR_SURF_BANK_WIDTH_1 0 +# define SI_ADDR_SURF_BANK_WIDTH_2 1 +# define SI_ADDR_SURF_BANK_WIDTH_4 2 +# define SI_ADDR_SURF_BANK_WIDTH_8 3 +# define SI_GRPH_FORMAT(x) (((x) & 0x7) << 8) +/* 8 BPP */ +# define SI_GRPH_FORMAT_INDEXED 0 +/* 16 BPP */ +# define SI_GRPH_FORMAT_ARGB1555 0 +# define SI_GRPH_FORMAT_ARGB565 1 +# define SI_GRPH_FORMAT_ARGB4444 2 +# define SI_GRPH_FORMAT_AI88 3 +# define SI_GRPH_FORMAT_MONO16 4 +# define SI_GRPH_FORMAT_BGRA5551 5 +/* 32 BPP */ +# define SI_GRPH_FORMAT_ARGB8888 0 +# define SI_GRPH_FORMAT_ARGB2101010 1 +# define SI_GRPH_FORMAT_32BPP_DIG 2 +# define SI_GRPH_FORMAT_8B_ARGB2101010 3 +# define SI_GRPH_FORMAT_BGRA1010102 4 +# define SI_GRPH_FORMAT_8B_BGRA1010102 5 +# define SI_GRPH_FORMAT_RGB111110 6 +# define SI_GRPH_FORMAT_BGR101111 7 +# define SI_GRPH_BANK_HEIGHT(x) (((x) & 0x3) << 11) +# define SI_ADDR_SURF_BANK_HEIGHT_1 0 +# define SI_ADDR_SURF_BANK_HEIGHT_2 1 +# define SI_ADDR_SURF_BANK_HEIGHT_4 2 +# define SI_ADDR_SURF_BANK_HEIGHT_8 3 +# define SI_GRPH_TILE_SPLIT(x) (((x) & 0x7) << 13) +# define SI_ADDR_SURF_TILE_SPLIT_64B 0 +# define SI_ADDR_SURF_TILE_SPLIT_128B 1 +# define SI_ADDR_SURF_TILE_SPLIT_256B 2 +# define SI_ADDR_SURF_TILE_SPLIT_512B 3 +# define SI_ADDR_SURF_TILE_SPLIT_1KB 4 +# define SI_ADDR_SURF_TILE_SPLIT_2KB 5 +# define SI_ADDR_SURF_TILE_SPLIT_4KB 6 +# define SI_GRPH_MACRO_TILE_ASPECT(x) (((x) & 0x3) << 18) +# define SI_ADDR_SURF_MACRO_TILE_ASPECT_1 0 +# define SI_ADDR_SURF_MACRO_TILE_ASPECT_2 1 +# define SI_ADDR_SURF_MACRO_TILE_ASPECT_4 2 +# define SI_ADDR_SURF_MACRO_TILE_ASPECT_8 3 +# define SI_GRPH_ARRAY_MODE(x) (((x) & 0x7) << 20) +# define SI_GRPH_ARRAY_LINEAR_GENERAL 0 +# define SI_GRPH_ARRAY_LINEAR_ALIGNED 1 +# define SI_GRPH_ARRAY_1D_TILED_THIN1 2 +# define SI_GRPH_ARRAY_2D_TILED_THIN1 4 +# define SI_GRPH_PIPE_CONFIG(x) (((x) & 0x1f) << 24) +# define SI_ADDR_SURF_P2 0 +# define SI_ADDR_SURF_P4_8x16 4 +# define SI_ADDR_SURF_P4_16x16 5 +# define SI_ADDR_SURF_P4_16x32 6 +# define SI_ADDR_SURF_P4_32x32 7 +# define SI_ADDR_SURF_P8_16x16_8x16 8 +# define SI_ADDR_SURF_P8_16x32_8x16 9 +# define SI_ADDR_SURF_P8_32x32_8x16 10 +# define SI_ADDR_SURF_P8_16x32_16x16 11 +# define SI_ADDR_SURF_P8_32x32_16x16 12 +# define SI_ADDR_SURF_P8_32x32_16x32 13 +# define SI_ADDR_SURF_P8_32x64_32x32 14 + #endif -- cgit v1.2.3-59-g8ed1b From 66f9311381b4772003d595fb6c518f1647450db0 Mon Sep 17 00:00:00 2001 From: Alain Renaud Date: Fri, 8 Jun 2012 15:34:46 -0400 Subject: xfs: xfs_vm_writepage clear iomap_valid when !buffer_uptodate (REV2) On filesytems with a block size smaller than PAGE_SIZE we currently have a problem with unwritten extents. If a we have multi-block page for which an unwritten extent has been allocated, and only some of the buffers have been written to, and they are not contiguous, we can expose stale data from disk in the blocks between the writes after extent conversion. Example of a page with unwritten and real data. buffer content 0 empty b_state = 0 1 DATA b_state = 0x1023 Uptodate,Dirty,Mapped,Unwritten 2 DATA b_state = 0x1023 Uptodate,Dirty,Mapped,Unwritten 3 empty b_state = 0 4 empty b_state = 0 5 DATA b_state = 0x1023 Uptodate,Dirty,Mapped,Unwritten 6 DATA b_state = 0x1023 Uptodate,Dirty,Mapped,Unwritten 7 empty b_state = 0 Buffers 1, 2, 5, and 6 have been written to, leaving 0, 3, 4, and 7 empty. Currently buffers 1, 2, 5, and 6 are added to a single ioend, and when IO has completed, extent conversion creates a real extent from block 1 through block 6, leaving 0 and 7 unwritten. However buffers 3 and 4 were not written to disk, so stale data is exposed from those blocks on a subsequent read. Fix this by setting iomap_valid = 0 when we find a buffer that is not Uptodate. This ensures that buffers 5 and 6 are not added to the same ioend as buffers 1 and 2. Later these blocks will be converted into two separate real extents, leaving the blocks in between unwritten. Signed-off-by: Alain Renaud Reviewed-by: Dave Chinner Signed-off-by: Ben Myers --- fs/xfs/xfs_aops.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c index ae31c313a79e..8dad722c0041 100644 --- a/fs/xfs/xfs_aops.c +++ b/fs/xfs/xfs_aops.c @@ -981,10 +981,15 @@ xfs_vm_writepage( imap_valid = 0; } } else { - if (PageUptodate(page)) { + if (PageUptodate(page)) ASSERT(buffer_mapped(bh)); - imap_valid = 0; - } + /* + * This buffer is not uptodate and will not be + * written to disk. Ensure that we will put any + * subsequent writeable buffers into a new + * ioend. + */ + imap_valid = 0; continue; } -- cgit v1.2.3-59-g8ed1b From 3b876c8f2a361ceeed3fed894980c69066f903a0 Mon Sep 17 00:00:00 2001 From: Jeff Liu Date: Thu, 7 Jun 2012 15:44:32 +0800 Subject: xfs: fix debug_object WARN at xfs_alloc_vextent() Fengguang reports: [ 780.529603] XFS (vdd): Ending clean mount [ 781.454590] ODEBUG: object is on stack, but not annotated [ 781.455433] ------------[ cut here ]------------ [ 781.455433] WARNING: at /c/kernel-tests/sound/lib/debugobjects.c:301 __debug_object_init+0x173/0x1f1() [ 781.455433] Hardware name: Bochs [ 781.455433] Modules linked in: [ 781.455433] Pid: 26910, comm: kworker/0:2 Not tainted 3.4.0+ #51 [ 781.455433] Call Trace: [ 781.455433] [] warn_slowpath_common+0x83/0x9b [ 781.455433] [] warn_slowpath_null+0x1a/0x1c [ 781.455433] [] __debug_object_init+0x173/0x1f1 [ 781.455433] [] debug_object_init+0x14/0x16 [ 781.455433] [] __init_work+0x20/0x22 [ 781.455433] [] xfs_alloc_vextent+0x6c/0xd5 Use INIT_WORK_ONSTACK in xfs_alloc_vextent instead of INIT_WORK. Reported-by: Wu Fengguang Signed-off-by: Jie Liu Signed-off-by: Ben Myers --- fs/xfs/xfs_alloc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index 229641fb8e67..a996e398692b 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -2441,7 +2441,7 @@ xfs_alloc_vextent( DECLARE_COMPLETION_ONSTACK(done); args->done = &done; - INIT_WORK(&args->work, xfs_alloc_vextent_worker); + INIT_WORK_ONSTACK(&args->work, xfs_alloc_vextent_worker); queue_work(xfs_alloc_wq, &args->work); wait_for_completion(&done); return args->result; -- cgit v1.2.3-59-g8ed1b From abca7c4965845924f65d40e0aa1092bdd895e314 Mon Sep 17 00:00:00 2001 From: Pravin B Shelar Date: Wed, 20 Jun 2012 12:52:56 -0700 Subject: mm: fix slab->page _count corruption when using slub On arches that do not support this_cpu_cmpxchg_double() slab_lock is used to do atomic cmpxchg() on double word which contains page->_count. The page count can be changed from get_page() or put_page() without taking slab_lock. That corrupts page counter. Fix it by moving page->_count out of cmpxchg_double data. So that slub does no change it while updating slub meta-data in struct page. [akpm@linux-foundation.org: use standard comment layout, tweak comment text] Reported-by: Amey Bhide Signed-off-by: Pravin B Shelar Acked-by: Christoph Lameter Cc: Pekka Enberg Cc: Andrea Arcangeli Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- include/linux/mm_types.h | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h index dad95bdd06d7..704a626d94a0 100644 --- a/include/linux/mm_types.h +++ b/include/linux/mm_types.h @@ -57,8 +57,18 @@ struct page { }; union { +#if defined(CONFIG_HAVE_CMPXCHG_DOUBLE) && \ + defined(CONFIG_HAVE_ALIGNED_STRUCT_PAGE) /* Used for cmpxchg_double in slub */ unsigned long counters; +#else + /* + * Keep _count separate from slub cmpxchg_double data. + * As the rest of the double word is protected by + * slab_lock but _count is not. + */ + unsigned counters; +#endif struct { -- cgit v1.2.3-59-g8ed1b From e4eed03fd06578571c01d4f1478c874bb432c815 Mon Sep 17 00:00:00 2001 From: Andrea Arcangeli Date: Wed, 20 Jun 2012 12:52:57 -0700 Subject: thp: avoid atomic64_read in pmd_read_atomic for 32bit PAE In the x86 32bit PAE CONFIG_TRANSPARENT_HUGEPAGE=y case while holding the mmap_sem for reading, cmpxchg8b cannot be used to read pmd contents under Xen. So instead of dealing only with "consistent" pmdvals in pmd_none_or_trans_huge_or_clear_bad() (which would be conceptually simpler) we let pmd_none_or_trans_huge_or_clear_bad() deal with pmdvals where the low 32bit and high 32bit could be inconsistent (to avoid having to use cmpxchg8b). The only guarantee we get from pmd_read_atomic is that if the low part of the pmd was found null, the high part will be null too (so the pmd will be considered unstable). And if the low part of the pmd is found "stable" later, then it means the whole pmd was read atomically (because after a pmd is stable, neither MADV_DONTNEED nor page faults can alter it anymore, and we read the high part after the low part). In the 32bit PAE x86 case, it is enough to read the low part of the pmdval atomically to declare the pmd as "stable" and that's true for THP and no THP, furthermore in the THP case we also have a barrier() that will prevent any inconsistent pmdvals to be cached by a later re-read of the *pmd. Signed-off-by: Andrea Arcangeli Cc: Jonathan Nieder Cc: Ulrich Obergfell Cc: Mel Gorman Cc: Hugh Dickins Cc: Larry Woodman Cc: Petr Matousek Cc: Rik van Riel Cc: Jan Beulich Cc: KOSAKI Motohiro Tested-by: Andrew Jones Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/x86/include/asm/pgtable-3level.h | 30 +++++++++++++++++------------- include/asm-generic/pgtable.h | 10 ++++++++++ 2 files changed, 27 insertions(+), 13 deletions(-) diff --git a/arch/x86/include/asm/pgtable-3level.h b/arch/x86/include/asm/pgtable-3level.h index 43876f16caf1..cb00ccc7d571 100644 --- a/arch/x86/include/asm/pgtable-3level.h +++ b/arch/x86/include/asm/pgtable-3level.h @@ -47,16 +47,26 @@ static inline void native_set_pte(pte_t *ptep, pte_t pte) * they can run pmd_offset_map_lock or pmd_trans_huge or other pmd * operations. * - * Without THP if the mmap_sem is hold for reading, the - * pmd can only transition from null to not null while pmd_read_atomic runs. - * So there's no need of literally reading it atomically. + * Without THP if the mmap_sem is hold for reading, the pmd can only + * transition from null to not null while pmd_read_atomic runs. So + * we can always return atomic pmd values with this function. * * With THP if the mmap_sem is hold for reading, the pmd can become - * THP or null or point to a pte (and in turn become "stable") at any - * time under pmd_read_atomic, so it's mandatory to read it atomically - * with cmpxchg8b. + * trans_huge or none or point to a pte (and in turn become "stable") + * at any time under pmd_read_atomic. We could read it really + * atomically here with a atomic64_read for the THP enabled case (and + * it would be a whole lot simpler), but to avoid using cmpxchg8b we + * only return an atomic pmdval if the low part of the pmdval is later + * found stable (i.e. pointing to a pte). And we're returning a none + * pmdval if the low part of the pmd is none. In some cases the high + * and low part of the pmdval returned may not be consistent if THP is + * enabled (the low part may point to previously mapped hugepage, + * while the high part may point to a more recently mapped hugepage), + * but pmd_none_or_trans_huge_or_clear_bad() only needs the low part + * of the pmd to be read atomically to decide if the pmd is unstable + * or not, with the only exception of when the low part of the pmd is + * zero in which case we return a none pmd. */ -#ifndef CONFIG_TRANSPARENT_HUGEPAGE static inline pmd_t pmd_read_atomic(pmd_t *pmdp) { pmdval_t ret; @@ -74,12 +84,6 @@ static inline pmd_t pmd_read_atomic(pmd_t *pmdp) return (pmd_t) { ret }; } -#else /* CONFIG_TRANSPARENT_HUGEPAGE */ -static inline pmd_t pmd_read_atomic(pmd_t *pmdp) -{ - return (pmd_t) { atomic64_read((atomic64_t *)pmdp) }; -} -#endif /* CONFIG_TRANSPARENT_HUGEPAGE */ static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) { diff --git a/include/asm-generic/pgtable.h b/include/asm-generic/pgtable.h index 6f2b45a9b6bc..ff4947b7a976 100644 --- a/include/asm-generic/pgtable.h +++ b/include/asm-generic/pgtable.h @@ -484,6 +484,16 @@ static inline int pmd_none_or_trans_huge_or_clear_bad(pmd_t *pmd) /* * The barrier will stabilize the pmdval in a register or on * the stack so that it will stop changing under the code. + * + * When CONFIG_TRANSPARENT_HUGEPAGE=y on x86 32bit PAE, + * pmd_read_atomic is allowed to return a not atomic pmdval + * (for example pointing to an hugepage that has never been + * mapped in the pmd). The below checks will only care about + * the low part of the pmd with 32bit PAE x86 anyway, with the + * exception of pmd_none(). So the important thing is that if + * the low part of the pmd is found null, the high part will + * be also null or the pmd_none() check below would be + * confused. */ #ifdef CONFIG_TRANSPARENT_HUGEPAGE barrier(); -- cgit v1.2.3-59-g8ed1b From fbb24a3a915f105016f1c828476be11aceac8504 Mon Sep 17 00:00:00 2001 From: Ryusuke Konishi Date: Wed, 20 Jun 2012 12:52:57 -0700 Subject: nilfs2: ensure proper cache clearing for gc-inodes A gc-inode is a pseudo inode used to buffer the blocks to be moved by garbage collection. Block caches of gc-inodes must be cleared every time a garbage collection function (nilfs_clean_segments) completes. Otherwise, stale blocks buffered in the caches may be wrongly reused in successive calls of the GC function. For user files, this is not a problem because their gc-inodes are distinguished by a checkpoint number as well as an inode number. They never buffer different blocks if either an inode number, a checkpoint number, or a block offset differs. However, gc-inodes of sufile, cpfile and DAT file can store different data for the same block offset. Thus, the nilfs_clean_segments function can move incorrect block for these meta-data files if an old block is cached. I found this is really causing meta-data corruption in nilfs. This fixes the issue by ensuring cache clear of gc-inodes and resolves reported GC problems including checkpoint file corruption, b-tree corruption, and the following warning during GC. nilfs_palloc_freev: entry number 307234 already freed. ... Signed-off-by: Ryusuke Konishi Tested-by: Ryusuke Konishi Cc: [2.6.37+] Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/nilfs2/gcinode.c | 2 ++ fs/nilfs2/segment.c | 2 ++ 2 files changed, 4 insertions(+) diff --git a/fs/nilfs2/gcinode.c b/fs/nilfs2/gcinode.c index 08a07a218d26..57ceaf33d177 100644 --- a/fs/nilfs2/gcinode.c +++ b/fs/nilfs2/gcinode.c @@ -191,6 +191,8 @@ void nilfs_remove_all_gcinodes(struct the_nilfs *nilfs) while (!list_empty(head)) { ii = list_first_entry(head, struct nilfs_inode_info, i_dirty); list_del_init(&ii->i_dirty); + truncate_inode_pages(&ii->vfs_inode.i_data, 0); + nilfs_btnode_cache_clear(&ii->i_btnode_cache); iput(&ii->vfs_inode); } } diff --git a/fs/nilfs2/segment.c b/fs/nilfs2/segment.c index 0e72ad6f22aa..88e11fb346b6 100644 --- a/fs/nilfs2/segment.c +++ b/fs/nilfs2/segment.c @@ -2309,6 +2309,8 @@ nilfs_remove_written_gcinodes(struct the_nilfs *nilfs, struct list_head *head) if (!test_bit(NILFS_I_UPDATED, &ii->i_state)) continue; list_del_init(&ii->i_dirty); + truncate_inode_pages(&ii->vfs_inode.i_data, 0); + nilfs_btnode_cache_clear(&ii->i_btnode_cache); iput(&ii->vfs_inode); } } -- cgit v1.2.3-59-g8ed1b From 61eafb00d55dfbccdfce543c6b60e369ff4f8f18 Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Wed, 20 Jun 2012 12:52:58 -0700 Subject: mm, oom: fix and cleanup oom score calculations The divide in p->signal->oom_score_adj * totalpages / 1000 within oom_badness() was causing an overflow of the signed long data type. This adds both the root bias and p->signal->oom_score_adj before doing the normalization which fixes the issue and also cleans up the calculation. Tested-by: Dave Jones Signed-off-by: David Rientjes Cc: KOSAKI Motohiro Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/oom_kill.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 416637f0e924..77775138e930 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -184,6 +184,7 @@ unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg, const nodemask_t *nodemask, unsigned long totalpages) { long points; + long adj; if (oom_unkillable_task(p, memcg, nodemask)) return 0; @@ -192,7 +193,8 @@ unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg, if (!p) return 0; - if (p->signal->oom_score_adj == OOM_SCORE_ADJ_MIN) { + adj = p->signal->oom_score_adj; + if (adj == OOM_SCORE_ADJ_MIN) { task_unlock(p); return 0; } @@ -210,14 +212,11 @@ unsigned long oom_badness(struct task_struct *p, struct mem_cgroup *memcg, * implementation used by LSMs. */ if (has_capability_noaudit(p, CAP_SYS_ADMIN)) - points -= 30 * totalpages / 1000; + adj -= 30; - /* - * /proc/pid/oom_score_adj ranges from -1000 to +1000 such that it may - * either completely disable oom killing or always prefer a certain - * task. - */ - points += p->signal->oom_score_adj * totalpages / 1000; + /* Normalize to oom_score_adj units */ + adj *= totalpages / 1000; + points += adj; /* * Never return 0 for an eligible task regardless of the root bonus and -- cgit v1.2.3-59-g8ed1b From 3a981f482cc29f7d0aeab509e51ea15519a6e961 Mon Sep 17 00:00:00 2001 From: Hugh Dickins Date: Wed, 20 Jun 2012 12:52:58 -0700 Subject: memcg: fix use_hierarchy css_is_ancestor oops regression If use_hierarchy is set, reclaim testing soon oopses in css_is_ancestor() called from __mem_cgroup_same_or_subtree() called from page_referenced(): when processes are exiting, it's easy for mm_match_cgroup() to pass along a NULL memcg coming from a NULL mm->owner. Check for that in __mem_cgroup_same_or_subtree(). Return true or false? False because we cannot know if it was in the hierarchy, but also false because it's better not to count a reference from an exiting process. Signed-off-by: Hugh Dickins Acked-by: Johannes Weiner Acked-by: Konstantin Khlebnikov Acked-by: KAMEZAWA Hiroyuki Acked-by: Michal Hocko Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memcontrol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memcontrol.c b/mm/memcontrol.c index ac35bccadb7b..f8517cd28feb 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1148,7 +1148,7 @@ bool __mem_cgroup_same_or_subtree(const struct mem_cgroup *root_memcg, { if (root_memcg == memcg) return true; - if (!root_memcg->use_hierarchy) + if (!root_memcg->use_hierarchy || !memcg) return false; return css_is_ancestor(&memcg->css, &root_memcg->css); } -- cgit v1.2.3-59-g8ed1b From 5e7b6ed8e9bf3c8e3bb579fd0aec64f6526f8c81 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 20 Jun 2012 12:52:58 -0700 Subject: xtensa: replace xtensa-specific _f{data,text} by _s{data,text} commit a2d063ac216c161 ("extable, core_kernel_data(): Make sure all archs define _sdata") missed xtensa. Xtensa does have a start of data marker, but calls it _fdata, causing kernel/built-in.o:(.text+0x964): undefined reference to `_sdata' _stext was already defined, but it was duplicated by _fdata. Signed-off-by: Geert Uytterhoeven Cc: Steven Rostedt Cc: Chris Zankel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/xtensa/kernel/vmlinux.lds.S | 3 +-- arch/xtensa/mm/init.c | 6 +++--- 2 files changed, 4 insertions(+), 5 deletions(-) diff --git a/arch/xtensa/kernel/vmlinux.lds.S b/arch/xtensa/kernel/vmlinux.lds.S index 88ecea3facb4..ee2e2089483d 100644 --- a/arch/xtensa/kernel/vmlinux.lds.S +++ b/arch/xtensa/kernel/vmlinux.lds.S @@ -83,7 +83,6 @@ SECTIONS _text = .; _stext = .; - _ftext = .; .text : { @@ -112,7 +111,7 @@ SECTIONS EXCEPTION_TABLE(16) /* Data section */ - _fdata = .; + _sdata = .; RW_DATA_SECTION(XCHAL_ICACHE_LINESIZE, PAGE_SIZE, THREAD_SIZE) _edata = .; diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index ba150e5de2eb..c82af58f60bc 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -29,7 +29,7 @@ /* References to section boundaries */ -extern char _ftext, _etext, _fdata, _edata, _rodata_end; +extern char _stext, _etext, _sdata, _edata, _rodata_end; extern char __init_begin, __init_end; /* @@ -197,8 +197,8 @@ void __init mem_init(void) reservedpages++; } - codesize = (unsigned long) &_etext - (unsigned long) &_ftext; - datasize = (unsigned long) &_edata - (unsigned long) &_fdata; + codesize = (unsigned long) &_etext - (unsigned long) &_stext; + datasize = (unsigned long) &_edata - (unsigned long) &_sdata; initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; printk("Memory: %luk/%luk available (%ldk kernel code, %ldk reserved, " -- cgit v1.2.3-59-g8ed1b From 0eff08b5d1bf4b30f1a549a58c85806748256b18 Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 20 Jun 2012 12:52:59 -0700 Subject: xtensa: use "test -e" instead of bashism "test -a" On Ubuntu, /bin/sh is a symlink to dash, which does not support "test -a". This causes messages like test: 1: -a: unexpected operator test: 1: -a: unexpected operator and link failures like (.init.text+0x132): undefined reference to `platform_init' due to the appropriate platform code not being compiled. Signed-off-by: Geert Uytterhoeven Cc: Chris Zankel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/xtensa/Makefile | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile index 7608559de93a..f973754ddf90 100644 --- a/arch/xtensa/Makefile +++ b/arch/xtensa/Makefile @@ -68,8 +68,8 @@ endif # Only build variant and/or platform if it includes a Makefile -buildvar := $(shell test -a $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/) -buildplf := $(shell test -a $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/) +buildvar := $(shell test -e $(srctree)/arch/xtensa/variants/$(VARIANT)/Makefile && echo arch/xtensa/variants/$(VARIANT)/) +buildplf := $(shell test -e $(srctree)/arch/xtensa/platforms/$(PLATFORM)/Makefile && echo arch/xtensa/platforms/$(PLATFORM)/) # Find libgcc.a -- cgit v1.2.3-59-g8ed1b From f022d0fa183c4def30ddd74f2baebd72c4254fcf Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 20 Jun 2012 12:52:59 -0700 Subject: xtensa: use the declarations provided by Cleanups: - Include , - Remove the (different) extern declarations, - Remove the no longer needed address-of ('&') operators, - Use %p to format pointer differences. Signed-off-by: Geert Uytterhoeven Cc: Chris Zankel Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/xtensa/mm/init.c | 18 +++++++----------- 1 file changed, 7 insertions(+), 11 deletions(-) diff --git a/arch/xtensa/mm/init.c b/arch/xtensa/mm/init.c index c82af58f60bc..db955179da2d 100644 --- a/arch/xtensa/mm/init.c +++ b/arch/xtensa/mm/init.c @@ -26,11 +26,7 @@ #include #include - -/* References to section boundaries */ - -extern char _stext, _etext, _sdata, _edata, _rodata_end; -extern char __init_begin, __init_end; +#include /* * mem_reserve(start, end, must_exist) @@ -197,9 +193,9 @@ void __init mem_init(void) reservedpages++; } - codesize = (unsigned long) &_etext - (unsigned long) &_stext; - datasize = (unsigned long) &_edata - (unsigned long) &_sdata; - initsize = (unsigned long) &__init_end - (unsigned long) &__init_begin; + codesize = (unsigned long) _etext - (unsigned long) _stext; + datasize = (unsigned long) _edata - (unsigned long) _sdata; + initsize = (unsigned long) __init_end - (unsigned long) __init_begin; printk("Memory: %luk/%luk available (%ldk kernel code, %ldk reserved, " "%ldk data, %ldk init %ldk highmem)\n", @@ -237,7 +233,7 @@ void free_initrd_mem(unsigned long start, unsigned long end) void free_initmem(void) { - free_reserved_mem(&__init_begin, &__init_end); - printk("Freeing unused kernel memory: %dk freed\n", - (&__init_end - &__init_begin) >> 10); + free_reserved_mem(__init_begin, __init_end); + printk("Freeing unused kernel memory: %zuk freed\n", + (__init_end - __init_begin) >> 10); } -- cgit v1.2.3-59-g8ed1b From ffb20313c01addc04212577af5f9b1399156a5bd Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 20 Jun 2012 12:53:00 -0700 Subject: h8300: fix use of extinct _sbss and _ebss Nowadays it should use __bss_start and __bss_stop Signed-off-by: Geert Uytterhoeven Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/h8300/kernel/setup.c | 6 +++--- arch/h8300/mm/init.c | 4 ++-- 2 files changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c index 68d651081bd3..050f13665b8e 100644 --- a/arch/h8300/kernel/setup.c +++ b/arch/h8300/kernel/setup.c @@ -54,7 +54,7 @@ unsigned long memory_end; char __initdata command_line[COMMAND_LINE_SIZE]; -extern int _stext, _etext, _sdata, _edata, _sbss, _ebss, _end; +extern int _stext, _etext, _sdata, _edata, __bss_start, __bss_stop, _end; extern int _ramstart, _ramend; extern char _target_name[]; extern void h8300_gpio_init(void); @@ -137,10 +137,10 @@ void __init setup_arch(char **cmdline_p) printk(KERN_DEBUG "KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x " "BSS=0x%06x-0x%06x\n", (int) &_stext, (int) &_etext, (int) &_sdata, (int) &_edata, - (int) &_sbss, (int) &_ebss); + (int) &__bss_start, (int) &__bss_stop); printk(KERN_DEBUG "KERNEL -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x " "STACK=0x%06x-0x%06x\n", - (int) &_ebss, (int) memory_start, + (int) &__bss_stop, (int) memory_start, (int) memory_start, (int) memory_end, (int) memory_end, (int) &_ramend); #endif diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c index 973369c32a95..ee4c9dbf58cc 100644 --- a/arch/h8300/mm/init.c +++ b/arch/h8300/mm/init.c @@ -123,7 +123,7 @@ void __init mem_init(void) int codek = 0, datak = 0, initk = 0; /* DAVIDM look at setup memory map generically with reserved area */ unsigned long tmp; - extern char _etext, _stext, _sdata, _ebss, __init_begin, __init_end; + extern char _etext, _stext, _sdata, __bss_stop, __init_begin, __init_end; extern unsigned long _ramend, _ramstart; unsigned long len = &_ramend - &_ramstart; unsigned long start_mem = memory_start; /* DAVIDM - these must start at end of kernel */ @@ -143,7 +143,7 @@ void __init mem_init(void) totalram_pages = free_all_bootmem(); codek = (&_etext - &_stext) >> 10; - datak = (&_ebss - &_sdata) >> 10; + datak = (&__bss_stop - &_sdata) >> 10; initk = (&__init_begin - &__init_end) >> 10; tmp = nr_free_pages() << PAGE_SHIFT; -- cgit v1.2.3-59-g8ed1b From 436814e61f5c526ed123853a9bf63fb2ff4ff94b Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Wed, 20 Jun 2012 12:53:00 -0700 Subject: h8300: use the declarations provided by Cleanups: - Include , - Remove the (different) extern declarations, - Remove the no longer needed address-of ('&') operators, - Remove the superfluous casts, use proper printk formatting instead. Signed-off-by: Geert Uytterhoeven Cc: Yoshinori Sato Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- arch/h8300/kernel/setup.c | 23 ++++++++++------------- arch/h8300/mm/init.c | 17 ++++++++--------- 2 files changed, 18 insertions(+), 22 deletions(-) diff --git a/arch/h8300/kernel/setup.c b/arch/h8300/kernel/setup.c index 050f13665b8e..d0b1607f2711 100644 --- a/arch/h8300/kernel/setup.c +++ b/arch/h8300/kernel/setup.c @@ -35,6 +35,7 @@ #include #include #include +#include #if defined(__H8300H__) #define CPU "H8/300H" @@ -54,7 +55,6 @@ unsigned long memory_end; char __initdata command_line[COMMAND_LINE_SIZE]; -extern int _stext, _etext, _sdata, _edata, __bss_start, __bss_stop, _end; extern int _ramstart, _ramend; extern char _target_name[]; extern void h8300_gpio_init(void); @@ -119,9 +119,9 @@ void __init setup_arch(char **cmdline_p) memory_end = CONFIG_BLKDEV_RESERVE_ADDRESS; #endif - init_mm.start_code = (unsigned long) &_stext; - init_mm.end_code = (unsigned long) &_etext; - init_mm.end_data = (unsigned long) &_edata; + init_mm.start_code = (unsigned long) _stext; + init_mm.end_code = (unsigned long) _etext; + init_mm.end_data = (unsigned long) _edata; init_mm.brk = (unsigned long) 0; #if (defined(CONFIG_H8300H_SIM) || defined(CONFIG_H8S_SIM)) && defined(CONFIG_GDB_MAGICPRINT) @@ -134,15 +134,12 @@ void __init setup_arch(char **cmdline_p) printk(KERN_INFO "H8/300 series support by Yoshinori Sato \n"); #ifdef DEBUG - printk(KERN_DEBUG "KERNEL -> TEXT=0x%06x-0x%06x DATA=0x%06x-0x%06x " - "BSS=0x%06x-0x%06x\n", (int) &_stext, (int) &_etext, - (int) &_sdata, (int) &_edata, - (int) &__bss_start, (int) &__bss_stop); - printk(KERN_DEBUG "KERNEL -> ROMFS=0x%06x-0x%06x MEM=0x%06x-0x%06x " - "STACK=0x%06x-0x%06x\n", - (int) &__bss_stop, (int) memory_start, - (int) memory_start, (int) memory_end, - (int) memory_end, (int) &_ramend); + printk(KERN_DEBUG "KERNEL -> TEXT=0x%p-0x%p DATA=0x%p-0x%p " + "BSS=0x%p-0x%p\n", _stext, _etext, _sdata, _edata, __bss_start, + __bss_stop); + printk(KERN_DEBUG "KERNEL -> ROMFS=0x%p-0x%06lx MEM=0x%06lx-0x%06lx " + "STACK=0x%06lx-0x%p\n", __bss_stop, memory_start, memory_start, + memory_end, memory_end, &_ramend); #endif #ifdef CONFIG_DEFAULT_CMDLINE diff --git a/arch/h8300/mm/init.c b/arch/h8300/mm/init.c index ee4c9dbf58cc..981e25094b1a 100644 --- a/arch/h8300/mm/init.c +++ b/arch/h8300/mm/init.c @@ -36,6 +36,7 @@ #include #include #include +#include #undef DEBUG @@ -123,7 +124,6 @@ void __init mem_init(void) int codek = 0, datak = 0, initk = 0; /* DAVIDM look at setup memory map generically with reserved area */ unsigned long tmp; - extern char _etext, _stext, _sdata, __bss_stop, __init_begin, __init_end; extern unsigned long _ramend, _ramstart; unsigned long len = &_ramend - &_ramstart; unsigned long start_mem = memory_start; /* DAVIDM - these must start at end of kernel */ @@ -142,9 +142,9 @@ void __init mem_init(void) /* this will put all memory onto the freelists */ totalram_pages = free_all_bootmem(); - codek = (&_etext - &_stext) >> 10; - datak = (&__bss_stop - &_sdata) >> 10; - initk = (&__init_begin - &__init_end) >> 10; + codek = (_etext - _stext) >> 10; + datak = (__bss_stop - _sdata) >> 10; + initk = (__init_begin - __init_end) >> 10; tmp = nr_free_pages() << PAGE_SHIFT; printk(KERN_INFO "Memory available: %luk/%luk RAM, %luk/%luk ROM (%dk kernel code, %dk data)\n", @@ -178,22 +178,21 @@ free_initmem(void) { #ifdef CONFIG_RAMKERNEL unsigned long addr; - extern char __init_begin, __init_end; /* * the following code should be cool even if these sections * are not page aligned. */ - addr = PAGE_ALIGN((unsigned long)(&__init_begin)); + addr = PAGE_ALIGN((unsigned long)(__init_begin)); /* next to check that the page we free is not a partial page */ - for (; addr + PAGE_SIZE < (unsigned long)(&__init_end); addr +=PAGE_SIZE) { + for (; addr + PAGE_SIZE < (unsigned long)__init_end; addr +=PAGE_SIZE) { ClearPageReserved(virt_to_page(addr)); init_page_count(virt_to_page(addr)); free_page(addr); totalram_pages++; } printk(KERN_INFO "Freeing unused kernel memory: %ldk freed (0x%x - 0x%x)\n", - (addr - PAGE_ALIGN((long) &__init_begin)) >> 10, - (int)(PAGE_ALIGN((unsigned long)(&__init_begin))), + (addr - PAGE_ALIGN((long) __init_begin)) >> 10, + (int)(PAGE_ALIGN((unsigned long)__init_begin)), (int)(addr - PAGE_SIZE)); #endif } -- cgit v1.2.3-59-g8ed1b From e0897d75f0b22e8c3a7287a48548c5686ef73447 Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Wed, 20 Jun 2012 12:53:00 -0700 Subject: mm, thp: print useful information when mmap_sem is unlocked in zap_pmd_range Andrea asked for addr, end, vma->vm_start, and vma->vm_end to be emitted when !rwsem_is_locked(&tlb->mm->mmap_sem). Otherwise, debugging the underlying issue is more difficult. Suggested-by: Andrea Arcangeli Signed-off-by: David Rientjes Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memory.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/mm/memory.c b/mm/memory.c index 1b7dc662bf9f..8762c4f915fc 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1225,7 +1225,15 @@ static inline unsigned long zap_pmd_range(struct mmu_gather *tlb, next = pmd_addr_end(addr, end); if (pmd_trans_huge(*pmd)) { if (next - addr != HPAGE_PMD_SIZE) { - VM_BUG_ON(!rwsem_is_locked(&tlb->mm->mmap_sem)); +#ifdef CONFIG_DEBUG_VM + if (!rwsem_is_locked(&tlb->mm->mmap_sem)) { + pr_err("%s: mmap_sem is unlocked! addr=0x%lx end=0x%lx vma->vm_start=0x%lx vma->vm_end=0x%lx\n", + __func__, addr, end, + vma->vm_start, + vma->vm_end); + BUG(); + } +#endif split_huge_page_pmd(vma->vm_mm, pmd); } else if (zap_huge_pmd(tlb, vma, pmd, addr)) goto next; -- cgit v1.2.3-59-g8ed1b From 4fe7efdbdfb1c7e7a7f31decfd831c0f31d37091 Mon Sep 17 00:00:00 2001 From: Konstantin Khlebnikov Date: Wed, 20 Jun 2012 12:53:01 -0700 Subject: mm: correctly synchronize rss-counters at exit/exec do_exit() and exec_mmap() call sync_mm_rss() before mm_release() does put_user(clear_child_tid) which can update task->rss_stat and thus make mm->rss_stat inconsistent. This triggers the "BUG:" printk in check_mm(). Let's fix this bug in the safest way, and optimize/cleanup this later. Reported-by: Markus Trippelsdorf Signed-off-by: Konstantin Khlebnikov Cc: Oleg Nesterov Cc: KAMEZAWA Hiroyuki Cc: Hugh Dickins Cc: Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- fs/exec.c | 2 +- kernel/exit.c | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/fs/exec.c b/fs/exec.c index a79786a8d2c8..da27b91ff1e8 100644 --- a/fs/exec.c +++ b/fs/exec.c @@ -819,10 +819,10 @@ static int exec_mmap(struct mm_struct *mm) /* Notify parent that we're no longer interested in the old VM */ tsk = current; old_mm = current->mm; - sync_mm_rss(old_mm); mm_release(tsk, old_mm); if (old_mm) { + sync_mm_rss(old_mm); /* * Make sure that if there is a core dump in progress * for the old mm, we get out and die instead of going diff --git a/kernel/exit.c b/kernel/exit.c index 34867cc5b42a..c0277d3f1aaa 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -643,6 +643,7 @@ static void exit_mm(struct task_struct * tsk) mm_release(tsk, mm); if (!mm) return; + sync_mm_rss(mm); /* * Serialize with any possible pending coredump. * We must hold mmap_sem around checking core_state -- cgit v1.2.3-59-g8ed1b From dad7557eb705688040aac134efa5418b66d5ed92 Mon Sep 17 00:00:00 2001 From: Wanpeng Li Date: Wed, 20 Jun 2012 12:53:01 -0700 Subject: mm: fix kernel-doc warnings Fix kernel-doc warnings such as Warning(../mm/page_cgroup.c:432): No description found for parameter 'id' Warning(../mm/page_cgroup.c:432): Excess function parameter 'mem' description in 'swap_cgroup_record' Signed-off-by: Wanpeng Li Cc: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memblock.c | 12 ++++++------ mm/memcontrol.c | 4 ++-- mm/oom_kill.c | 2 +- mm/page_cgroup.c | 4 ++-- mm/pagewalk.c | 1 - mm/percpu-vm.c | 1 - 6 files changed, 11 insertions(+), 13 deletions(-) diff --git a/mm/memblock.c b/mm/memblock.c index 32a0a5e4d79d..b65b687e2362 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -540,9 +540,9 @@ int __init_memblock memblock_reserve(phys_addr_t base, phys_addr_t size) * __next_free_mem_range - next function for for_each_free_mem_range() * @idx: pointer to u64 loop variable * @nid: nid: node selector, %MAX_NUMNODES for all nodes - * @p_start: ptr to phys_addr_t for start address of the range, can be %NULL - * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL - * @p_nid: ptr to int for nid of the range, can be %NULL + * @out_start: ptr to phys_addr_t for start address of the range, can be %NULL + * @out_end: ptr to phys_addr_t for end address of the range, can be %NULL + * @out_nid: ptr to int for nid of the range, can be %NULL * * Find the first free area from *@idx which matches @nid, fill the out * parameters, and update *@idx for the next iteration. The lower 32bit of @@ -616,9 +616,9 @@ void __init_memblock __next_free_mem_range(u64 *idx, int nid, * __next_free_mem_range_rev - next function for for_each_free_mem_range_reverse() * @idx: pointer to u64 loop variable * @nid: nid: node selector, %MAX_NUMNODES for all nodes - * @p_start: ptr to phys_addr_t for start address of the range, can be %NULL - * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL - * @p_nid: ptr to int for nid of the range, can be %NULL + * @out_start: ptr to phys_addr_t for start address of the range, can be %NULL + * @out_end: ptr to phys_addr_t for end address of the range, can be %NULL + * @out_nid: ptr to int for nid of the range, can be %NULL * * Reverse of __next_free_mem_range(). */ diff --git a/mm/memcontrol.c b/mm/memcontrol.c index f8517cd28feb..f72b5e52451a 100644 --- a/mm/memcontrol.c +++ b/mm/memcontrol.c @@ -1234,7 +1234,7 @@ int mem_cgroup_inactive_file_is_low(struct lruvec *lruvec) /** * mem_cgroup_margin - calculate chargeable space of a memory cgroup - * @mem: the memory cgroup + * @memcg: the memory cgroup * * Returns the maximum amount of memory @mem can be charged with, in * pages. @@ -1508,7 +1508,7 @@ static unsigned long mem_cgroup_reclaim(struct mem_cgroup *memcg, /** * test_mem_cgroup_node_reclaimable - * @mem: the target memcg + * @memcg: the target memcg * @nid: the node ID to be checked. * @noswap : specify true here if the user wants flle only information. * diff --git a/mm/oom_kill.c b/mm/oom_kill.c index 77775138e930..ac300c99baf6 100644 --- a/mm/oom_kill.c +++ b/mm/oom_kill.c @@ -365,7 +365,7 @@ static struct task_struct *select_bad_process(unsigned int *ppoints, /** * dump_tasks - dump current memory state of all system tasks - * @mem: current's memory controller, if constrained + * @memcg: current's memory controller, if constrained * @nodemask: nodemask passed to page allocator for mempolicy ooms * * Dumps the current memory state of all eligible tasks. Tasks not in the same diff --git a/mm/page_cgroup.c b/mm/page_cgroup.c index 1ccbd714059c..eb750f851395 100644 --- a/mm/page_cgroup.c +++ b/mm/page_cgroup.c @@ -392,7 +392,7 @@ static struct swap_cgroup *lookup_swap_cgroup(swp_entry_t ent, /** * swap_cgroup_cmpxchg - cmpxchg mem_cgroup's id for this swp_entry. - * @end: swap entry to be cmpxchged + * @ent: swap entry to be cmpxchged * @old: old id * @new: new id * @@ -422,7 +422,7 @@ unsigned short swap_cgroup_cmpxchg(swp_entry_t ent, /** * swap_cgroup_record - record mem_cgroup for this swp_entry. * @ent: swap entry to be recorded into - * @mem: mem_cgroup to be recorded + * @id: mem_cgroup to be recorded * * Returns old value at success, 0 at failure. * (Of course, old value can be 0.) diff --git a/mm/pagewalk.c b/mm/pagewalk.c index aa9701e12714..6c118d012bb5 100644 --- a/mm/pagewalk.c +++ b/mm/pagewalk.c @@ -162,7 +162,6 @@ static int walk_hugetlb_range(struct vm_area_struct *vma, /** * walk_page_range - walk a memory map's page tables with a callback - * @mm: memory map to walk * @addr: starting address * @end: ending address * @walk: set of callbacks to invoke for each level of the tree diff --git a/mm/percpu-vm.c b/mm/percpu-vm.c index 405d331804c3..3707c71ae4cd 100644 --- a/mm/percpu-vm.c +++ b/mm/percpu-vm.c @@ -360,7 +360,6 @@ err_free: * @chunk: chunk to depopulate * @off: offset to the area to depopulate * @size: size of the area to depopulate in bytes - * @flush: whether to flush cache and tlb or not * * For each cpu, depopulate and unmap pages [@page_start,@page_end) * from @chunk. If @flush is true, vcache is flushed before unmapping -- cgit v1.2.3-59-g8ed1b From eb4546bbbdb160aff084d50511165f385756af18 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 20 Jun 2012 12:53:02 -0700 Subject: mm/memory.c: fix kernel-doc warnings Fix kernel-doc warnings in mm/memory.c: Warning(mm/memory.c:1377): No description found for parameter 'start' Warning(mm/memory.c:1377): Excess function parameter 'address' description in 'zap_page_range' Signed-off-by: Randy Dunlap Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memory.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/memory.c b/mm/memory.c index 8762c4f915fc..2466d1250231 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -1374,7 +1374,7 @@ void unmap_vmas(struct mmu_gather *tlb, /** * zap_page_range - remove user pages in a given range * @vma: vm_area_struct holding the applicable pages - * @address: starting address of pages to zap + * @start: starting address of pages to zap * @size: number of bytes to zap * @details: details of nonlinear truncation or shared cache invalidation * -- cgit v1.2.3-59-g8ed1b From 7dea26813507bfa3d261a81f70494336c3b28293 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Wed, 20 Jun 2012 12:53:02 -0700 Subject: get_maintainer: Fix --help warning Using --help emits a concatenation error. Fix it. Signed-off-by: Joe Perches Reported-by: Paul Bolle Tested-by: Paul Bolle Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- scripts/get_maintainer.pl | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl index 0948c6b5a321..8b673dd4627f 100755 --- a/scripts/get_maintainer.pl +++ b/scripts/get_maintainer.pl @@ -83,6 +83,8 @@ push(@signature_tags, "Signed-off-by:"); push(@signature_tags, "Reviewed-by:"); push(@signature_tags, "Acked-by:"); +my $signature_pattern = "\(" . join("|", @signature_tags) . "\)"; + # rfc822 email address - preloaded methods go here. my $rfc822_lwsp = "(?:(?:\\r\\n)?[ \\t])"; my $rfc822_char = '[\\000-\\377]'; @@ -473,7 +475,6 @@ my @subsystem = (); my @status = (); my %deduplicate_name_hash = (); my %deduplicate_address_hash = (); -my $signature_pattern; my @maintainers = get_maintainers(); -- cgit v1.2.3-59-g8ed1b From 10d8935f46e5028847b179757ecbf9238b13d129 Mon Sep 17 00:00:00 2001 From: Viresh Kumar Date: Wed, 20 Jun 2012 12:53:02 -0700 Subject: Viresh has moved viresh.kumar@st.com email-id doesn't exist anymore as I have left the company. Replace ST's id with viresh.linux@gmail.com. It also updates .mailmap file to fix address for 'git shortlog' Signed-off-by: Viresh Kumar Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- .mailmap | 1 + Documentation/arm/SPEAr/overview.txt | 2 +- MAINTAINERS | 18 +++++++++--------- arch/arm/boot/dts/spear1310-evb.dts | 2 +- arch/arm/boot/dts/spear1310.dtsi | 2 +- arch/arm/boot/dts/spear1340-evb.dts | 2 +- arch/arm/boot/dts/spear1340.dtsi | 2 +- arch/arm/boot/dts/spear13xx.dtsi | 2 +- arch/arm/boot/dts/spear300-evb.dts | 2 +- arch/arm/boot/dts/spear300.dtsi | 2 +- arch/arm/boot/dts/spear310-evb.dts | 2 +- arch/arm/boot/dts/spear310.dtsi | 2 +- arch/arm/boot/dts/spear320-evb.dts | 2 +- arch/arm/boot/dts/spear320.dtsi | 2 +- arch/arm/boot/dts/spear3xx.dtsi | 2 +- arch/arm/include/asm/hardware/sp810.h | 2 +- arch/arm/mach-spear13xx/include/mach/debug-macro.S | 2 +- arch/arm/mach-spear13xx/include/mach/dma.h | 2 +- arch/arm/mach-spear13xx/include/mach/generic.h | 2 +- arch/arm/mach-spear13xx/include/mach/gpio.h | 2 +- arch/arm/mach-spear13xx/include/mach/irqs.h | 2 +- arch/arm/mach-spear13xx/include/mach/spear.h | 2 +- arch/arm/mach-spear13xx/include/mach/timex.h | 2 +- arch/arm/mach-spear13xx/include/mach/uncompress.h | 2 +- arch/arm/mach-spear13xx/spear1310.c | 2 +- arch/arm/mach-spear13xx/spear1340.c | 2 +- arch/arm/mach-spear13xx/spear13xx.c | 2 +- arch/arm/mach-spear3xx/include/mach/debug-macro.S | 2 +- arch/arm/mach-spear3xx/include/mach/generic.h | 2 +- arch/arm/mach-spear3xx/include/mach/gpio.h | 2 +- arch/arm/mach-spear3xx/include/mach/irqs.h | 2 +- arch/arm/mach-spear3xx/include/mach/misc_regs.h | 2 +- arch/arm/mach-spear3xx/include/mach/spear.h | 2 +- arch/arm/mach-spear3xx/include/mach/timex.h | 2 +- arch/arm/mach-spear3xx/include/mach/uncompress.h | 2 +- arch/arm/mach-spear3xx/spear300.c | 2 +- arch/arm/mach-spear3xx/spear310.c | 2 +- arch/arm/mach-spear3xx/spear320.c | 2 +- arch/arm/mach-spear3xx/spear3xx.c | 2 +- arch/arm/mach-spear6xx/include/mach/gpio.h | 2 +- arch/arm/mach-spear6xx/include/mach/misc_regs.h | 2 +- arch/arm/plat-spear/include/plat/debug-macro.S | 2 +- arch/arm/plat-spear/include/plat/pl080.h | 2 +- arch/arm/plat-spear/include/plat/shirq.h | 2 +- arch/arm/plat-spear/include/plat/timex.h | 2 +- arch/arm/plat-spear/include/plat/uncompress.h | 2 +- arch/arm/plat-spear/pl080.c | 2 +- arch/arm/plat-spear/restart.c | 2 +- arch/arm/plat-spear/shirq.c | 2 +- drivers/ata/pata_arasan_cf.c | 4 ++-- drivers/clk/spear/clk-aux-synth.c | 2 +- drivers/clk/spear/clk-frac-synth.c | 2 +- drivers/clk/spear/clk-gpt-synth.c | 2 +- drivers/clk/spear/clk-vco-pll.c | 2 +- drivers/clk/spear/clk.c | 2 +- drivers/clk/spear/clk.h | 2 +- drivers/clk/spear/spear1310_clock.c | 2 +- drivers/clk/spear/spear1340_clock.c | 2 +- drivers/clk/spear/spear3xx_clock.c | 2 +- drivers/clk/spear/spear6xx_clock.c | 2 +- drivers/dma/dw_dmac.c | 2 +- drivers/mfd/stmpe-i2c.c | 2 +- drivers/mfd/stmpe-spi.c | 4 ++-- drivers/mmc/host/sdhci-spear.c | 4 ++-- drivers/pinctrl/spear/pinctrl-spear.c | 2 +- drivers/pinctrl/spear/pinctrl-spear.h | 2 +- drivers/pinctrl/spear/pinctrl-spear1310.c | 4 ++-- drivers/pinctrl/spear/pinctrl-spear1340.c | 4 ++-- drivers/pinctrl/spear/pinctrl-spear300.c | 4 ++-- drivers/pinctrl/spear/pinctrl-spear310.c | 4 ++-- drivers/pinctrl/spear/pinctrl-spear320.c | 4 ++-- drivers/pinctrl/spear/pinctrl-spear3xx.c | 2 +- drivers/pinctrl/spear/pinctrl-spear3xx.h | 2 +- drivers/watchdog/sp805_wdt.c | 4 ++-- include/linux/mmc/sdhci-spear.h | 2 +- include/linux/pata_arasan_cf_data.h | 2 +- 76 files changed, 93 insertions(+), 92 deletions(-) diff --git a/.mailmap b/.mailmap index 2909c33bc54e..658003aa9446 100644 --- a/.mailmap +++ b/.mailmap @@ -111,6 +111,7 @@ Uwe Kleine-König Uwe Kleine-König Uwe Kleine-König Valdis Kletnieks +Viresh Kumar Takashi YOSHII Yusuke Goda Gustavo Padovan diff --git a/Documentation/arm/SPEAr/overview.txt b/Documentation/arm/SPEAr/overview.txt index 57aae7765c74..65610bf52ebf 100644 --- a/Documentation/arm/SPEAr/overview.txt +++ b/Documentation/arm/SPEAr/overview.txt @@ -60,4 +60,4 @@ Introduction Document Author --------------- - Viresh Kumar , (c) 2010-2012 ST Microelectronics + Viresh Kumar , (c) 2010-2012 ST Microelectronics diff --git a/MAINTAINERS b/MAINTAINERS index 3e30a3afe2a4..a81b298d9c75 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -579,7 +579,7 @@ F: drivers/net/appletalk/ F: net/appletalk/ ARASAN COMPACT FLASH PATA CONTROLLER -M: Viresh Kumar +M: Viresh Kumar L: linux-ide@vger.kernel.org S: Maintained F: include/linux/pata_arasan_cf_data.h @@ -5296,7 +5296,7 @@ S: Maintained F: drivers/pinctrl/ PIN CONTROLLER - ST SPEAR -M: Viresh Kumar +M: Viresh Kumar L: spear-devel@list.st.com L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) W: http://www.st.com/spear @@ -5873,7 +5873,7 @@ S: Maintained F: drivers/tty/serial SYNOPSYS DESIGNWARE DMAC DRIVER -M: Viresh Kumar +M: Viresh Kumar S: Maintained F: include/linux/dw_dmac.h F: drivers/dma/dw_dmac_regs.h @@ -6021,7 +6021,7 @@ S: Maintained F: drivers/mmc/host/sdhci-s3c.c SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) ST SPEAR DRIVER -M: Viresh Kumar +M: Viresh Kumar L: spear-devel@list.st.com L: linux-mmc@vger.kernel.org S: Maintained @@ -6377,7 +6377,7 @@ S: Maintained F: include/linux/compiler.h SPEAR PLATFORM SUPPORT -M: Viresh Kumar +M: Viresh Kumar M: Shiraz Hashim L: spear-devel@list.st.com L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) @@ -6386,7 +6386,7 @@ S: Maintained F: arch/arm/plat-spear/ SPEAR13XX MACHINE SUPPORT -M: Viresh Kumar +M: Viresh Kumar M: Shiraz Hashim L: spear-devel@list.st.com L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) @@ -6395,7 +6395,7 @@ S: Maintained F: arch/arm/mach-spear13xx/ SPEAR3XX MACHINE SUPPORT -M: Viresh Kumar +M: Viresh Kumar M: Shiraz Hashim L: spear-devel@list.st.com L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) @@ -6406,7 +6406,7 @@ F: arch/arm/mach-spear3xx/ SPEAR6XX MACHINE SUPPORT M: Rajeev Kumar M: Shiraz Hashim -M: Viresh Kumar +M: Viresh Kumar L: spear-devel@list.st.com L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) W: http://www.st.com/spear @@ -6414,7 +6414,7 @@ S: Maintained F: arch/arm/mach-spear6xx/ SPEAR CLOCK FRAMEWORK SUPPORT -M: Viresh Kumar +M: Viresh Kumar L: spear-devel@list.st.com L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers) W: http://www.st.com/spear diff --git a/arch/arm/boot/dts/spear1310-evb.dts b/arch/arm/boot/dts/spear1310-evb.dts index 8314e4171884..dd4358bc26e2 100644 --- a/arch/arm/boot/dts/spear1310-evb.dts +++ b/arch/arm/boot/dts/spear1310-evb.dts @@ -1,7 +1,7 @@ /* * DTS file for SPEAr1310 Evaluation Baord * - * Copyright 2012 Viresh Kumar + * Copyright 2012 Viresh Kumar * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License diff --git a/arch/arm/boot/dts/spear1310.dtsi b/arch/arm/boot/dts/spear1310.dtsi index 9e61da404d57..419ea7413d23 100644 --- a/arch/arm/boot/dts/spear1310.dtsi +++ b/arch/arm/boot/dts/spear1310.dtsi @@ -1,7 +1,7 @@ /* * DTS file for all SPEAr1310 SoCs * - * Copyright 2012 Viresh Kumar + * Copyright 2012 Viresh Kumar * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License diff --git a/arch/arm/boot/dts/spear1340-evb.dts b/arch/arm/boot/dts/spear1340-evb.dts index 0d8472e5ab9f..c9a54e06fb68 100644 --- a/arch/arm/boot/dts/spear1340-evb.dts +++ b/arch/arm/boot/dts/spear1340-evb.dts @@ -1,7 +1,7 @@ /* * DTS file for SPEAr1340 Evaluation Baord * - * Copyright 2012 Viresh Kumar + * Copyright 2012 Viresh Kumar * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License diff --git a/arch/arm/boot/dts/spear1340.dtsi b/arch/arm/boot/dts/spear1340.dtsi index a26fc47a55e8..d71fe2a68f09 100644 --- a/arch/arm/boot/dts/spear1340.dtsi +++ b/arch/arm/boot/dts/spear1340.dtsi @@ -1,7 +1,7 @@ /* * DTS file for all SPEAr1340 SoCs * - * Copyright 2012 Viresh Kumar + * Copyright 2012 Viresh Kumar * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License diff --git a/arch/arm/boot/dts/spear13xx.dtsi b/arch/arm/boot/dts/spear13xx.dtsi index 1f8e1e1481df..10dcec7e7321 100644 --- a/arch/arm/boot/dts/spear13xx.dtsi +++ b/arch/arm/boot/dts/spear13xx.dtsi @@ -1,7 +1,7 @@ /* * DTS file for all SPEAr13xx SoCs * - * Copyright 2012 Viresh Kumar + * Copyright 2012 Viresh Kumar * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License diff --git a/arch/arm/boot/dts/spear300-evb.dts b/arch/arm/boot/dts/spear300-evb.dts index fc82b1a26458..d71b8d581e3d 100644 --- a/arch/arm/boot/dts/spear300-evb.dts +++ b/arch/arm/boot/dts/spear300-evb.dts @@ -1,7 +1,7 @@ /* * DTS file for SPEAr300 Evaluation Baord * - * Copyright 2012 Viresh Kumar + * Copyright 2012 Viresh Kumar * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License diff --git a/arch/arm/boot/dts/spear300.dtsi b/arch/arm/boot/dts/spear300.dtsi index 01c5e358fdb2..ed3627c116cc 100644 --- a/arch/arm/boot/dts/spear300.dtsi +++ b/arch/arm/boot/dts/spear300.dtsi @@ -1,7 +1,7 @@ /* * DTS file for SPEAr300 SoC * - * Copyright 2012 Viresh Kumar + * Copyright 2012 Viresh Kumar * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License diff --git a/arch/arm/boot/dts/spear310-evb.dts b/arch/arm/boot/dts/spear310-evb.dts index dc5e2d445a93..b00544e0cd5d 100644 --- a/arch/arm/boot/dts/spear310-evb.dts +++ b/arch/arm/boot/dts/spear310-evb.dts @@ -1,7 +1,7 @@ /* * DTS file for SPEAr310 Evaluation Baord * - * Copyright 2012 Viresh Kumar + * Copyright 2012 Viresh Kumar * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License diff --git a/arch/arm/boot/dts/spear310.dtsi b/arch/arm/boot/dts/spear310.dtsi index e47081c494d9..62fc4fb3e5f9 100644 --- a/arch/arm/boot/dts/spear310.dtsi +++ b/arch/arm/boot/dts/spear310.dtsi @@ -1,7 +1,7 @@ /* * DTS file for SPEAr310 SoC * - * Copyright 2012 Viresh Kumar + * Copyright 2012 Viresh Kumar * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License diff --git a/arch/arm/boot/dts/spear320-evb.dts b/arch/arm/boot/dts/spear320-evb.dts index 6308fa3bec1e..c13fd1f3b09f 100644 --- a/arch/arm/boot/dts/spear320-evb.dts +++ b/arch/arm/boot/dts/spear320-evb.dts @@ -1,7 +1,7 @@ /* * DTS file for SPEAr320 Evaluation Baord * - * Copyright 2012 Viresh Kumar + * Copyright 2012 Viresh Kumar * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License diff --git a/arch/arm/boot/dts/spear320.dtsi b/arch/arm/boot/dts/spear320.dtsi index 5372ca399b1f..1f49d69595a0 100644 --- a/arch/arm/boot/dts/spear320.dtsi +++ b/arch/arm/boot/dts/spear320.dtsi @@ -1,7 +1,7 @@ /* * DTS file for SPEAr320 SoC * - * Copyright 2012 Viresh Kumar + * Copyright 2012 Viresh Kumar * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License diff --git a/arch/arm/boot/dts/spear3xx.dtsi b/arch/arm/boot/dts/spear3xx.dtsi index 91072553963f..3a8bb5736928 100644 --- a/arch/arm/boot/dts/spear3xx.dtsi +++ b/arch/arm/boot/dts/spear3xx.dtsi @@ -1,7 +1,7 @@ /* * DTS file for all SPEAr3xx SoCs * - * Copyright 2012 Viresh Kumar + * Copyright 2012 Viresh Kumar * * The code contained herein is licensed under the GNU General Public * License. You may obtain a copy of the GNU General Public License diff --git a/arch/arm/include/asm/hardware/sp810.h b/arch/arm/include/asm/hardware/sp810.h index e0d1c0cfa548..6b9b077d86b3 100644 --- a/arch/arm/include/asm/hardware/sp810.h +++ b/arch/arm/include/asm/hardware/sp810.h @@ -4,7 +4,7 @@ * ARM PrimeXsys System Controller SP810 header file * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear13xx/include/mach/debug-macro.S b/arch/arm/mach-spear13xx/include/mach/debug-macro.S index ea1564609bd4..9e3ae6bfe50d 100644 --- a/arch/arm/mach-spear13xx/include/mach/debug-macro.S +++ b/arch/arm/mach-spear13xx/include/mach/debug-macro.S @@ -4,7 +4,7 @@ * Debugging macro include header spear13xx machine family * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear13xx/include/mach/dma.h b/arch/arm/mach-spear13xx/include/mach/dma.h index 383ab04dc6c9..d50bdb605925 100644 --- a/arch/arm/mach-spear13xx/include/mach/dma.h +++ b/arch/arm/mach-spear13xx/include/mach/dma.h @@ -4,7 +4,7 @@ * DMA information for SPEAr13xx machine family * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear13xx/include/mach/generic.h b/arch/arm/mach-spear13xx/include/mach/generic.h index 6d8c45b9f298..dac57fd0cdfd 100644 --- a/arch/arm/mach-spear13xx/include/mach/generic.h +++ b/arch/arm/mach-spear13xx/include/mach/generic.h @@ -4,7 +4,7 @@ * spear13xx machine family generic header file * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear13xx/include/mach/gpio.h b/arch/arm/mach-spear13xx/include/mach/gpio.h index cd6f4f86a56b..85f176311f63 100644 --- a/arch/arm/mach-spear13xx/include/mach/gpio.h +++ b/arch/arm/mach-spear13xx/include/mach/gpio.h @@ -4,7 +4,7 @@ * GPIO macros for SPEAr13xx machine family * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear13xx/include/mach/irqs.h b/arch/arm/mach-spear13xx/include/mach/irqs.h index f542a24aa5f2..271a62b4cd31 100644 --- a/arch/arm/mach-spear13xx/include/mach/irqs.h +++ b/arch/arm/mach-spear13xx/include/mach/irqs.h @@ -4,7 +4,7 @@ * IRQ helper macros for spear13xx machine family * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear13xx/include/mach/spear.h b/arch/arm/mach-spear13xx/include/mach/spear.h index 30c57ef72686..65f27def239b 100644 --- a/arch/arm/mach-spear13xx/include/mach/spear.h +++ b/arch/arm/mach-spear13xx/include/mach/spear.h @@ -4,7 +4,7 @@ * spear13xx Machine family specific definition * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear13xx/include/mach/timex.h b/arch/arm/mach-spear13xx/include/mach/timex.h index 31af3e8d976e..3a58b8284a6a 100644 --- a/arch/arm/mach-spear13xx/include/mach/timex.h +++ b/arch/arm/mach-spear13xx/include/mach/timex.h @@ -4,7 +4,7 @@ * SPEAr3XX machine family specific timex definitions * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear13xx/include/mach/uncompress.h b/arch/arm/mach-spear13xx/include/mach/uncompress.h index c7840896ae6e..70fe72f05dea 100644 --- a/arch/arm/mach-spear13xx/include/mach/uncompress.h +++ b/arch/arm/mach-spear13xx/include/mach/uncompress.h @@ -4,7 +4,7 @@ * Serial port stubs for kernel decompress status messages * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear13xx/spear1310.c b/arch/arm/mach-spear13xx/spear1310.c index fefd15b2f380..732d29bc7330 100644 --- a/arch/arm/mach-spear13xx/spear1310.c +++ b/arch/arm/mach-spear13xx/spear1310.c @@ -4,7 +4,7 @@ * SPEAr1310 machine source file * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear13xx/spear1340.c b/arch/arm/mach-spear13xx/spear1340.c index ee38cbc56869..81e4ed76ad06 100644 --- a/arch/arm/mach-spear13xx/spear1340.c +++ b/arch/arm/mach-spear13xx/spear1340.c @@ -4,7 +4,7 @@ * SPEAr1340 machine source file * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear13xx/spear13xx.c b/arch/arm/mach-spear13xx/spear13xx.c index 50b349ae863d..cf936b106e27 100644 --- a/arch/arm/mach-spear13xx/spear13xx.c +++ b/arch/arm/mach-spear13xx/spear13xx.c @@ -4,7 +4,7 @@ * SPEAr13XX machines common source file * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear3xx/include/mach/debug-macro.S b/arch/arm/mach-spear3xx/include/mach/debug-macro.S index 590519f10d6e..0a6381fad5d9 100644 --- a/arch/arm/mach-spear3xx/include/mach/debug-macro.S +++ b/arch/arm/mach-spear3xx/include/mach/debug-macro.S @@ -4,7 +4,7 @@ * Debugging macro include header spear3xx machine family * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear3xx/include/mach/generic.h b/arch/arm/mach-spear3xx/include/mach/generic.h index 4a95b9453c2a..ce19113ca791 100644 --- a/arch/arm/mach-spear3xx/include/mach/generic.h +++ b/arch/arm/mach-spear3xx/include/mach/generic.h @@ -4,7 +4,7 @@ * SPEAr3XX machine family generic header file * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear3xx/include/mach/gpio.h b/arch/arm/mach-spear3xx/include/mach/gpio.h index 451b2081bfc9..2ac74c6db7f1 100644 --- a/arch/arm/mach-spear3xx/include/mach/gpio.h +++ b/arch/arm/mach-spear3xx/include/mach/gpio.h @@ -4,7 +4,7 @@ * GPIO macros for SPEAr3xx machine family * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear3xx/include/mach/irqs.h b/arch/arm/mach-spear3xx/include/mach/irqs.h index 51bd62a0254c..803de76f5f36 100644 --- a/arch/arm/mach-spear3xx/include/mach/irqs.h +++ b/arch/arm/mach-spear3xx/include/mach/irqs.h @@ -4,7 +4,7 @@ * IRQ helper macros for SPEAr3xx machine family * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear3xx/include/mach/misc_regs.h b/arch/arm/mach-spear3xx/include/mach/misc_regs.h index 18e2ac576f25..6309bf68d6f8 100644 --- a/arch/arm/mach-spear3xx/include/mach/misc_regs.h +++ b/arch/arm/mach-spear3xx/include/mach/misc_regs.h @@ -4,7 +4,7 @@ * Miscellaneous registers definitions for SPEAr3xx machine family * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear3xx/include/mach/spear.h b/arch/arm/mach-spear3xx/include/mach/spear.h index 51eb953148a9..8cca95193d4d 100644 --- a/arch/arm/mach-spear3xx/include/mach/spear.h +++ b/arch/arm/mach-spear3xx/include/mach/spear.h @@ -4,7 +4,7 @@ * SPEAr3xx Machine family specific definition * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear3xx/include/mach/timex.h b/arch/arm/mach-spear3xx/include/mach/timex.h index a38cc9de876f..9f5d08bd0c44 100644 --- a/arch/arm/mach-spear3xx/include/mach/timex.h +++ b/arch/arm/mach-spear3xx/include/mach/timex.h @@ -4,7 +4,7 @@ * SPEAr3XX machine family specific timex definitions * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear3xx/include/mach/uncompress.h b/arch/arm/mach-spear3xx/include/mach/uncompress.h index 53ba8bbc0dfa..b909b011f7c8 100644 --- a/arch/arm/mach-spear3xx/include/mach/uncompress.h +++ b/arch/arm/mach-spear3xx/include/mach/uncompress.h @@ -4,7 +4,7 @@ * Serial port stubs for kernel decompress status messages * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear3xx/spear300.c b/arch/arm/mach-spear3xx/spear300.c index f74a05bdb829..0f882ecb7d81 100644 --- a/arch/arm/mach-spear3xx/spear300.c +++ b/arch/arm/mach-spear3xx/spear300.c @@ -4,7 +4,7 @@ * SPEAr300 machine source file * * Copyright (C) 2009-2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear3xx/spear310.c b/arch/arm/mach-spear3xx/spear310.c index 84dfb0900747..bbcf4571d361 100644 --- a/arch/arm/mach-spear3xx/spear310.c +++ b/arch/arm/mach-spear3xx/spear310.c @@ -4,7 +4,7 @@ * SPEAr310 machine source file * * Copyright (C) 2009-2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear3xx/spear320.c b/arch/arm/mach-spear3xx/spear320.c index a88fa841d29d..88d483bcd66a 100644 --- a/arch/arm/mach-spear3xx/spear320.c +++ b/arch/arm/mach-spear3xx/spear320.c @@ -4,7 +4,7 @@ * SPEAr320 machine source file * * Copyright (C) 2009-2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear3xx/spear3xx.c b/arch/arm/mach-spear3xx/spear3xx.c index f22419ed74a8..0f41bd1c47c3 100644 --- a/arch/arm/mach-spear3xx/spear3xx.c +++ b/arch/arm/mach-spear3xx/spear3xx.c @@ -4,7 +4,7 @@ * SPEAr3XX machines common source file * * Copyright (C) 2009-2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear6xx/include/mach/gpio.h b/arch/arm/mach-spear6xx/include/mach/gpio.h index 3a789dbb69f7..d42cefc0356d 100644 --- a/arch/arm/mach-spear6xx/include/mach/gpio.h +++ b/arch/arm/mach-spear6xx/include/mach/gpio.h @@ -4,7 +4,7 @@ * GPIO macros for SPEAr6xx machine family * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/mach-spear6xx/include/mach/misc_regs.h b/arch/arm/mach-spear6xx/include/mach/misc_regs.h index 179e45774b3a..c34acc201d34 100644 --- a/arch/arm/mach-spear6xx/include/mach/misc_regs.h +++ b/arch/arm/mach-spear6xx/include/mach/misc_regs.h @@ -4,7 +4,7 @@ * Miscellaneous registers definitions for SPEAr6xx machine family * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/plat-spear/include/plat/debug-macro.S b/arch/arm/plat-spear/include/plat/debug-macro.S index ab3de721c5db..75b05ad0fbad 100644 --- a/arch/arm/plat-spear/include/plat/debug-macro.S +++ b/arch/arm/plat-spear/include/plat/debug-macro.S @@ -4,7 +4,7 @@ * Debugging macro include header for spear platform * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/plat-spear/include/plat/pl080.h b/arch/arm/plat-spear/include/plat/pl080.h index e14a3e4932f9..2bc6b54460a8 100644 --- a/arch/arm/plat-spear/include/plat/pl080.h +++ b/arch/arm/plat-spear/include/plat/pl080.h @@ -4,7 +4,7 @@ * DMAC pl080 definitions for SPEAr platform * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/plat-spear/include/plat/shirq.h b/arch/arm/plat-spear/include/plat/shirq.h index 03ed8b585dcf..88a7fbd24793 100644 --- a/arch/arm/plat-spear/include/plat/shirq.h +++ b/arch/arm/plat-spear/include/plat/shirq.h @@ -4,7 +4,7 @@ * SPEAr platform shared irq layer header file * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/plat-spear/include/plat/timex.h b/arch/arm/plat-spear/include/plat/timex.h index 914d09dd50fd..ef95e5b780bd 100644 --- a/arch/arm/plat-spear/include/plat/timex.h +++ b/arch/arm/plat-spear/include/plat/timex.h @@ -4,7 +4,7 @@ * SPEAr platform specific timex definitions * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/plat-spear/include/plat/uncompress.h b/arch/arm/plat-spear/include/plat/uncompress.h index 6dd455bafdfd..2ce6cb17a98b 100644 --- a/arch/arm/plat-spear/include/plat/uncompress.h +++ b/arch/arm/plat-spear/include/plat/uncompress.h @@ -4,7 +4,7 @@ * Serial port stubs for kernel decompress status messages * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/plat-spear/pl080.c b/arch/arm/plat-spear/pl080.c index a56a067717c1..12cf27f935f9 100644 --- a/arch/arm/plat-spear/pl080.c +++ b/arch/arm/plat-spear/pl080.c @@ -4,7 +4,7 @@ * DMAC pl080 definitions for SPEAr platform * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/plat-spear/restart.c b/arch/arm/plat-spear/restart.c index ea0a61302b7e..4f990115b1bd 100644 --- a/arch/arm/plat-spear/restart.c +++ b/arch/arm/plat-spear/restart.c @@ -4,7 +4,7 @@ * SPEAr platform specific restart functions * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/arch/arm/plat-spear/shirq.c b/arch/arm/plat-spear/shirq.c index 961fb7261243..853e891e1184 100644 --- a/arch/arm/plat-spear/shirq.c +++ b/arch/arm/plat-spear/shirq.c @@ -4,7 +4,7 @@ * SPEAr platform shared irq layer source file * * Copyright (C) 2009 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c index 3239517f4d90..ac6a5beb28f3 100644 --- a/drivers/ata/pata_arasan_cf.c +++ b/drivers/ata/pata_arasan_cf.c @@ -4,7 +4,7 @@ * Arasan Compact Flash host controller source file * * Copyright (C) 2011 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any @@ -959,7 +959,7 @@ static struct platform_driver arasan_cf_driver = { module_platform_driver(arasan_cf_driver); -MODULE_AUTHOR("Viresh Kumar "); +MODULE_AUTHOR("Viresh Kumar "); MODULE_DESCRIPTION("Arasan ATA Compact Flash driver"); MODULE_LICENSE("GPL"); MODULE_ALIAS("platform:" DRIVER_NAME); diff --git a/drivers/clk/spear/clk-aux-synth.c b/drivers/clk/spear/clk-aux-synth.c index af34074e702b..6756e7c3bc07 100644 --- a/drivers/clk/spear/clk-aux-synth.c +++ b/drivers/clk/spear/clk-aux-synth.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/clk/spear/clk-frac-synth.c b/drivers/clk/spear/clk-frac-synth.c index 4dbdb3fe18e0..958aa3ad1d60 100644 --- a/drivers/clk/spear/clk-frac-synth.c +++ b/drivers/clk/spear/clk-frac-synth.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/clk/spear/clk-gpt-synth.c b/drivers/clk/spear/clk-gpt-synth.c index b471c9762a97..1afc18c4effc 100644 --- a/drivers/clk/spear/clk-gpt-synth.c +++ b/drivers/clk/spear/clk-gpt-synth.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/clk/spear/clk-vco-pll.c b/drivers/clk/spear/clk-vco-pll.c index dcd4bdf4b0d9..5f1b6badeb15 100644 --- a/drivers/clk/spear/clk-vco-pll.c +++ b/drivers/clk/spear/clk-vco-pll.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/clk/spear/clk.c b/drivers/clk/spear/clk.c index 376d4e5ff326..7cd63788d546 100644 --- a/drivers/clk/spear/clk.c +++ b/drivers/clk/spear/clk.c @@ -1,6 +1,6 @@ /* * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/clk/spear/clk.h b/drivers/clk/spear/clk.h index 3321c46a071c..931737677dfa 100644 --- a/drivers/clk/spear/clk.h +++ b/drivers/clk/spear/clk.h @@ -2,7 +2,7 @@ * Clock framework definitions for SPEAr platform * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/clk/spear/spear1310_clock.c b/drivers/clk/spear/spear1310_clock.c index 42b68df9aeef..8f05652d53e6 100644 --- a/drivers/clk/spear/spear1310_clock.c +++ b/drivers/clk/spear/spear1310_clock.c @@ -4,7 +4,7 @@ * SPEAr1310 machine clock framework source file * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/clk/spear/spear1340_clock.c b/drivers/clk/spear/spear1340_clock.c index f130919d5bf8..e3ea72162236 100644 --- a/drivers/clk/spear/spear1340_clock.c +++ b/drivers/clk/spear/spear1340_clock.c @@ -4,7 +4,7 @@ * SPEAr1340 machine clock framework source file * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/clk/spear/spear3xx_clock.c b/drivers/clk/spear/spear3xx_clock.c index 440bb3e4c971..01dd6daff2a1 100644 --- a/drivers/clk/spear/spear3xx_clock.c +++ b/drivers/clk/spear/spear3xx_clock.c @@ -2,7 +2,7 @@ * SPEAr3xx machines clock framework source file * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/clk/spear/spear6xx_clock.c b/drivers/clk/spear/spear6xx_clock.c index f9a20b382304..554d64b062a1 100644 --- a/drivers/clk/spear/spear6xx_clock.c +++ b/drivers/clk/spear/spear6xx_clock.c @@ -2,7 +2,7 @@ * SPEAr6xx machines clock framework source file * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c index e23dc82d43ac..721296157577 100644 --- a/drivers/dma/dw_dmac.c +++ b/drivers/dma/dw_dmac.c @@ -1626,4 +1626,4 @@ module_exit(dw_exit); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("Synopsys DesignWare DMA Controller driver"); MODULE_AUTHOR("Haavard Skinnemoen (Atmel)"); -MODULE_AUTHOR("Viresh Kumar "); +MODULE_AUTHOR("Viresh Kumar "); diff --git a/drivers/mfd/stmpe-i2c.c b/drivers/mfd/stmpe-i2c.c index 373f423b1181..947a06a1845f 100644 --- a/drivers/mfd/stmpe-i2c.c +++ b/drivers/mfd/stmpe-i2c.c @@ -6,7 +6,7 @@ * * License Terms: GNU General Public License, version 2 * Author: Rabin Vincent for ST-Ericsson - * Author: Viresh Kumar for ST Microelectronics + * Author: Viresh Kumar for ST Microelectronics */ #include diff --git a/drivers/mfd/stmpe-spi.c b/drivers/mfd/stmpe-spi.c index afd459013ecb..9edfe864cc05 100644 --- a/drivers/mfd/stmpe-spi.c +++ b/drivers/mfd/stmpe-spi.c @@ -4,7 +4,7 @@ * Copyright (C) ST Microelectronics SA 2011 * * License Terms: GNU General Public License, version 2 - * Author: Viresh Kumar for ST Microelectronics + * Author: Viresh Kumar for ST Microelectronics */ #include @@ -146,4 +146,4 @@ module_exit(stmpe_exit); MODULE_LICENSE("GPL v2"); MODULE_DESCRIPTION("STMPE MFD SPI Interface Driver"); -MODULE_AUTHOR("Viresh Kumar "); +MODULE_AUTHOR("Viresh Kumar "); diff --git a/drivers/mmc/host/sdhci-spear.c b/drivers/mmc/host/sdhci-spear.c index 1fe32dfa7cd4..423da8194cd8 100644 --- a/drivers/mmc/host/sdhci-spear.c +++ b/drivers/mmc/host/sdhci-spear.c @@ -4,7 +4,7 @@ * Support of SDHCI platform devices for spear soc family * * Copyright (C) 2010 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * Inspired by sdhci-pltfm.c * @@ -289,5 +289,5 @@ static struct platform_driver sdhci_driver = { module_platform_driver(sdhci_driver); MODULE_DESCRIPTION("SPEAr Secure Digital Host Controller Interface driver"); -MODULE_AUTHOR("Viresh Kumar "); +MODULE_AUTHOR("Viresh Kumar "); MODULE_LICENSE("GPL v2"); diff --git a/drivers/pinctrl/spear/pinctrl-spear.c b/drivers/pinctrl/spear/pinctrl-spear.c index 5ae50aadf885..b3f6b2873fdd 100644 --- a/drivers/pinctrl/spear/pinctrl-spear.c +++ b/drivers/pinctrl/spear/pinctrl-spear.c @@ -2,7 +2,7 @@ * Driver for the ST Microelectronics SPEAr pinmux * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * Inspired from: * - U300 Pinctl drivers diff --git a/drivers/pinctrl/spear/pinctrl-spear.h b/drivers/pinctrl/spear/pinctrl-spear.h index 9155783bb47f..d950eb78d939 100644 --- a/drivers/pinctrl/spear/pinctrl-spear.h +++ b/drivers/pinctrl/spear/pinctrl-spear.h @@ -2,7 +2,7 @@ * Driver header file for the ST Microelectronics SPEAr pinmux * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/pinctrl/spear/pinctrl-spear1310.c b/drivers/pinctrl/spear/pinctrl-spear1310.c index fff168be7f00..d6cca8c81b92 100644 --- a/drivers/pinctrl/spear/pinctrl-spear1310.c +++ b/drivers/pinctrl/spear/pinctrl-spear1310.c @@ -2,7 +2,7 @@ * Driver for the ST Microelectronics SPEAr1310 pinmux * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any @@ -2192,7 +2192,7 @@ static void __exit spear1310_pinctrl_exit(void) } module_exit(spear1310_pinctrl_exit); -MODULE_AUTHOR("Viresh Kumar "); +MODULE_AUTHOR("Viresh Kumar "); MODULE_DESCRIPTION("ST Microelectronics SPEAr1310 pinctrl driver"); MODULE_LICENSE("GPL v2"); MODULE_DEVICE_TABLE(of, spear1310_pinctrl_of_match); diff --git a/drivers/pinctrl/spear/pinctrl-spear1340.c b/drivers/pinctrl/spear/pinctrl-spear1340.c index a8ab2a6f51bf..a0eb057e55bd 100644 --- a/drivers/pinctrl/spear/pinctrl-spear1340.c +++ b/drivers/pinctrl/spear/pinctrl-spear1340.c @@ -2,7 +2,7 @@ * Driver for the ST Microelectronics SPEAr1340 pinmux * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any @@ -1983,7 +1983,7 @@ static void __exit spear1340_pinctrl_exit(void) } module_exit(spear1340_pinctrl_exit); -MODULE_AUTHOR("Viresh Kumar "); +MODULE_AUTHOR("Viresh Kumar "); MODULE_DESCRIPTION("ST Microelectronics SPEAr1340 pinctrl driver"); MODULE_LICENSE("GPL v2"); MODULE_DEVICE_TABLE(of, spear1340_pinctrl_of_match); diff --git a/drivers/pinctrl/spear/pinctrl-spear300.c b/drivers/pinctrl/spear/pinctrl-spear300.c index 9c82a35e4e78..4dfc2849b172 100644 --- a/drivers/pinctrl/spear/pinctrl-spear300.c +++ b/drivers/pinctrl/spear/pinctrl-spear300.c @@ -2,7 +2,7 @@ * Driver for the ST Microelectronics SPEAr300 pinmux * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any @@ -702,7 +702,7 @@ static void __exit spear300_pinctrl_exit(void) } module_exit(spear300_pinctrl_exit); -MODULE_AUTHOR("Viresh Kumar "); +MODULE_AUTHOR("Viresh Kumar "); MODULE_DESCRIPTION("ST Microelectronics SPEAr300 pinctrl driver"); MODULE_LICENSE("GPL v2"); MODULE_DEVICE_TABLE(of, spear300_pinctrl_of_match); diff --git a/drivers/pinctrl/spear/pinctrl-spear310.c b/drivers/pinctrl/spear/pinctrl-spear310.c index 1a9707605125..96883693fb7e 100644 --- a/drivers/pinctrl/spear/pinctrl-spear310.c +++ b/drivers/pinctrl/spear/pinctrl-spear310.c @@ -2,7 +2,7 @@ * Driver for the ST Microelectronics SPEAr310 pinmux * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any @@ -425,7 +425,7 @@ static void __exit spear310_pinctrl_exit(void) } module_exit(spear310_pinctrl_exit); -MODULE_AUTHOR("Viresh Kumar "); +MODULE_AUTHOR("Viresh Kumar "); MODULE_DESCRIPTION("ST Microelectronics SPEAr310 pinctrl driver"); MODULE_LICENSE("GPL v2"); MODULE_DEVICE_TABLE(of, SPEAr310_pinctrl_of_match); diff --git a/drivers/pinctrl/spear/pinctrl-spear320.c b/drivers/pinctrl/spear/pinctrl-spear320.c index de726e6c283a..020b1e0bdb3e 100644 --- a/drivers/pinctrl/spear/pinctrl-spear320.c +++ b/drivers/pinctrl/spear/pinctrl-spear320.c @@ -2,7 +2,7 @@ * Driver for the ST Microelectronics SPEAr320 pinmux * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any @@ -3462,7 +3462,7 @@ static void __exit spear320_pinctrl_exit(void) } module_exit(spear320_pinctrl_exit); -MODULE_AUTHOR("Viresh Kumar "); +MODULE_AUTHOR("Viresh Kumar "); MODULE_DESCRIPTION("ST Microelectronics SPEAr320 pinctrl driver"); MODULE_LICENSE("GPL v2"); MODULE_DEVICE_TABLE(of, spear320_pinctrl_of_match); diff --git a/drivers/pinctrl/spear/pinctrl-spear3xx.c b/drivers/pinctrl/spear/pinctrl-spear3xx.c index 91c883bc46a6..0242378f7cb8 100644 --- a/drivers/pinctrl/spear/pinctrl-spear3xx.c +++ b/drivers/pinctrl/spear/pinctrl-spear3xx.c @@ -2,7 +2,7 @@ * Driver for the ST Microelectronics SPEAr3xx pinmux * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/pinctrl/spear/pinctrl-spear3xx.h b/drivers/pinctrl/spear/pinctrl-spear3xx.h index 5d5fdd8df7b8..31f44347f17c 100644 --- a/drivers/pinctrl/spear/pinctrl-spear3xx.h +++ b/drivers/pinctrl/spear/pinctrl-spear3xx.h @@ -2,7 +2,7 @@ * Header file for the ST Microelectronics SPEAr3xx pinmux * * Copyright (C) 2012 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/drivers/watchdog/sp805_wdt.c b/drivers/watchdog/sp805_wdt.c index afcd13676542..e4841c36798b 100644 --- a/drivers/watchdog/sp805_wdt.c +++ b/drivers/watchdog/sp805_wdt.c @@ -4,7 +4,7 @@ * Watchdog driver for ARM SP805 watchdog module * * Copyright (C) 2010 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2 or later. This program is licensed "as is" without any @@ -331,6 +331,6 @@ static struct amba_driver sp805_wdt_driver = { module_amba_driver(sp805_wdt_driver); -MODULE_AUTHOR("Viresh Kumar "); +MODULE_AUTHOR("Viresh Kumar "); MODULE_DESCRIPTION("ARM SP805 Watchdog Driver"); MODULE_LICENSE("GPL"); diff --git a/include/linux/mmc/sdhci-spear.h b/include/linux/mmc/sdhci-spear.h index 5cdc96da9dd5..e78c0e236e9d 100644 --- a/include/linux/mmc/sdhci-spear.h +++ b/include/linux/mmc/sdhci-spear.h @@ -4,7 +4,7 @@ * SDHCI declarations specific to ST SPEAr platform * * Copyright (C) 2010 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any diff --git a/include/linux/pata_arasan_cf_data.h b/include/linux/pata_arasan_cf_data.h index a6ee9aa898bb..a7b4fc386e63 100644 --- a/include/linux/pata_arasan_cf_data.h +++ b/include/linux/pata_arasan_cf_data.h @@ -4,7 +4,7 @@ * Arasan Compact Flash host controller platform data header file * * Copyright (C) 2011 ST Microelectronics - * Viresh Kumar + * Viresh Kumar * * This file is licensed under the terms of the GNU General Public * License version 2. This program is licensed "as is" without any -- cgit v1.2.3-59-g8ed1b From f39cdaebb89dc3e6dd4f3e75b6d4e87ef12190af Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Wed, 20 Jun 2012 12:53:03 -0700 Subject: fault-inject: avoid call to random32() if fault injection is disabled After enabling CONFIG_FAILSLAB I noticed random32 in profiles even if slub fault injection wasn't enabled at runtime. should_fail forces a comparison against random32() even if probability is 0: if (attr->probability <= random32() % 100) return false; Add a check up front for probability == 0 and avoid all of the more complicated checks. Signed-off-by: Anton Blanchard Acked-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- lib/fault-inject.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/lib/fault-inject.c b/lib/fault-inject.c index 6805453c18e7..f7210ad6cffd 100644 --- a/lib/fault-inject.c +++ b/lib/fault-inject.c @@ -101,6 +101,10 @@ static inline bool fail_stacktrace(struct fault_attr *attr) bool should_fail(struct fault_attr *attr, ssize_t size) { + /* No need to check any other properties if the probability is 0 */ + if (attr->probability == 0) + return false; + if (attr->task_filter && !fail_task(attr, current)) return false; -- cgit v1.2.3-59-g8ed1b From 6347e90091041e34bea625370794c92f4ce71228 Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Wed, 20 Jun 2012 12:53:03 -0700 Subject: pidns: guarantee that the pidns init will be the last pidns process reaped Today we have a twofold bug. Sometimes release_task on pid == 1 in a pid namespace can run before other processes in a pid namespace have had release task called. With the result that pid_ns_release_proc can be called before the last proc_flus_task() is done using upid->ns->proc_mnt, resulting in the use of a stale pointer. This same set of circumstances can lead to waitpid(...) returning for a processes started with clone(CLONE_NEWPID) before the every process in the pid namespace has actually exited. To fix this modify zap_pid_ns_processess wait until all other processes in the pid namespace have exited, even EXIT_DEAD zombies. The delay_group_leader and related tests ensure that the thread gruop leader will be the last thread of a process group to be reaped, or to become EXIT_DEAD and self reap. With the change to zap_pid_ns_processes we get the guarantee that pid == 1 in a pid namespace will be the last task that release_task is called on. With pid == 1 being the last task to pass through release_task pid_ns_release_proc can no longer be called too early nor can wait return before all of the EXIT_DEAD tasks in a pid namespace have exited. Signed-off-by: Eric W. Biederman Signed-off-by: Oleg Nesterov Cc: Louis Rilling Cc: Mike Galbraith Acked-by: Pavel Emelyanov Tested-by: Andrew Wagin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/exit.c | 14 +++++++++++++- kernel/pid_namespace.c | 20 ++++++++++++++++++++ 2 files changed, 33 insertions(+), 1 deletion(-) diff --git a/kernel/exit.c b/kernel/exit.c index c0277d3f1aaa..a85efd2348bd 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -64,7 +64,6 @@ static void exit_mm(struct task_struct * tsk); static void __unhash_process(struct task_struct *p, bool group_dead) { nr_threads--; - detach_pid(p, PIDTYPE_PID); if (group_dead) { detach_pid(p, PIDTYPE_PGID); detach_pid(p, PIDTYPE_SID); @@ -72,7 +71,20 @@ static void __unhash_process(struct task_struct *p, bool group_dead) list_del_rcu(&p->tasks); list_del_init(&p->sibling); __this_cpu_dec(process_counts); + /* + * If we are the last child process in a pid namespace to be + * reaped, notify the reaper sleeping zap_pid_ns_processes(). + */ + if (IS_ENABLED(CONFIG_PID_NS)) { + struct task_struct *parent = p->real_parent; + + if ((task_active_pid_ns(p)->child_reaper == parent) && + list_empty(&parent->children) && + (parent->flags & PF_EXITING)) + wake_up_process(parent); + } } + detach_pid(p, PIDTYPE_PID); list_del_rcu(&p->thread_group); } diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c index 16b20e38c4a1..b3c7fd554250 100644 --- a/kernel/pid_namespace.c +++ b/kernel/pid_namespace.c @@ -184,11 +184,31 @@ void zap_pid_ns_processes(struct pid_namespace *pid_ns) } read_unlock(&tasklist_lock); + /* Firstly reap the EXIT_ZOMBIE children we may have. */ do { clear_thread_flag(TIF_SIGPENDING); rc = sys_wait4(-1, NULL, __WALL, NULL); } while (rc != -ECHILD); + /* + * sys_wait4() above can't reap the TASK_DEAD children. + * Make sure they all go away, see __unhash_process(). + */ + for (;;) { + bool need_wait = false; + + read_lock(&tasklist_lock); + if (!list_empty(¤t->children)) { + __set_current_state(TASK_UNINTERRUPTIBLE); + need_wait = true; + } + read_unlock(&tasklist_lock); + + if (!need_wait) + break; + schedule(); + } + if (pid_ns->reboot) current->signal->group_exit_code = pid_ns->reboot; -- cgit v1.2.3-59-g8ed1b From 50d75f8daead8a1f850c40a3b6c6575ab19b48cf Mon Sep 17 00:00:00 2001 From: Oleg Nesterov Date: Wed, 20 Jun 2012 12:53:04 -0700 Subject: pidns: find_new_reaper() can no longer switch to init_pid_ns.child_reaper find_new_reaper() changes pid_ns->child_reaper, see add0d4df ("pid_ns: zap_pid_ns_processes: fix the ->child_reaper changing"). The original reason has gone away after the previous patch, ->children list must be empty after zap_pid_ns_processes(). However now we can not switch to init_pid_ns.child_reaper. __unhash_process() relies on the "->child_reaper == parent" check, but this check does not work if the last exiting task is also the child reaper. As Eric sugested, we can change __unhash_process() to use the parent's pid_ns and remove this code. Also, with this change we can move detach_pid(PIDTYPE_PID) back, where it was before the previous fix. Signed-off-by: Oleg Nesterov Acked-by: "Eric W. Biederman" Cc: Louis Rilling Cc: Mike Galbraith Acked-by: Pavel Emelyanov Tested-by: Andrew Wagin Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/exit.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/kernel/exit.c b/kernel/exit.c index a85efd2348bd..2f59cc334516 100644 --- a/kernel/exit.c +++ b/kernel/exit.c @@ -64,6 +64,7 @@ static void exit_mm(struct task_struct * tsk); static void __unhash_process(struct task_struct *p, bool group_dead) { nr_threads--; + detach_pid(p, PIDTYPE_PID); if (group_dead) { detach_pid(p, PIDTYPE_PGID); detach_pid(p, PIDTYPE_SID); @@ -78,13 +79,12 @@ static void __unhash_process(struct task_struct *p, bool group_dead) if (IS_ENABLED(CONFIG_PID_NS)) { struct task_struct *parent = p->real_parent; - if ((task_active_pid_ns(p)->child_reaper == parent) && + if ((task_active_pid_ns(parent)->child_reaper == parent) && list_empty(&parent->children) && (parent->flags & PF_EXITING)) wake_up_process(parent); } } - detach_pid(p, PIDTYPE_PID); list_del_rcu(&p->thread_group); } @@ -732,12 +732,6 @@ static struct task_struct *find_new_reaper(struct task_struct *father) zap_pid_ns_processes(pid_ns); write_lock_irq(&tasklist_lock); - /* - * We can not clear ->child_reaper or leave it alone. - * There may by stealth EXIT_DEAD tasks on ->children, - * forget_original_parent() must move them somewhere. - */ - pid_ns->child_reaper = init_pid_ns.child_reaper; } else if (father->signal->has_child_subreaper) { struct task_struct *reaper; -- cgit v1.2.3-59-g8ed1b From 5702c5eeab959e86ee2d9b4fe7f2d87e65b25d46 Mon Sep 17 00:00:00 2001 From: Cyrill Gorcunov Date: Wed, 20 Jun 2012 12:53:04 -0700 Subject: c/r: prctl: Move PR_GET_TID_ADDRESS to a proper place During merging of PR_GET_TID_ADDRESS patch the code has been misplaced (it happened to appear under PR_MCE_KILL) in result noone can use this option. Fix it by moving code snippet to a proper place. Signed-off-by: Cyrill Gorcunov Acked-by: Kees Cook Cc: Oleg Nesterov Cc: Pavel Emelyanov Cc: Andrey Vagin Cc: Serge Hallyn Cc: KAMEZAWA Hiroyuki Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/sys.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/kernel/sys.c b/kernel/sys.c index f0ec44dcd415..e0c8ffc50d7f 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -2127,9 +2127,6 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, else return -EINVAL; break; - case PR_GET_TID_ADDRESS: - error = prctl_get_tid_address(me, (int __user **)arg2); - break; default: return -EINVAL; } @@ -2147,6 +2144,9 @@ SYSCALL_DEFINE5(prctl, int, option, unsigned long, arg2, unsigned long, arg3, case PR_SET_MM: error = prctl_set_mm(arg2, arg3, arg4, arg5); break; + case PR_GET_TID_ADDRESS: + error = prctl_get_tid_address(me, (int __user **)arg2); + break; case PR_SET_CHILD_SUBREAPER: me->signal->is_child_subreaper = !!arg2; error = 0; -- cgit v1.2.3-59-g8ed1b From 48c3b583bbddad2220ca4c22319ca5d1f78b2090 Mon Sep 17 00:00:00 2001 From: Greg Pearson Date: Wed, 20 Jun 2012 12:53:05 -0700 Subject: mm/memblock: fix overlapping allocation when doubling reserved array __alloc_memory_core_early() asks memblock for a range of memory then try to reserve it. If the reserved region array lacks space for the new range, memblock_double_array() is called to allocate more space for the array. If memblock is used to allocate memory for the new array it can end up using a range that overlaps with the range originally allocated in __alloc_memory_core_early(), leading to possible data corruption. With this patch memblock_double_array() now calls memblock_find_in_range() with a narrowed candidate range (in cases where the reserved.regions array is being doubled) so any memory allocated will not overlap with the original range that was being reserved. The range is narrowed by passing in the starting address and size of the previously allocated range. Then the range above the ending address is searched and if a candidate is not found, the range below the starting address is searched. Signed-off-by: Greg Pearson Signed-off-by: Yinghai Lu Acked-by: Tejun Heo Cc: Benjamin Herrenschmidt Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- mm/memblock.c | 36 ++++++++++++++++++++++++++++++++---- 1 file changed, 32 insertions(+), 4 deletions(-) diff --git a/mm/memblock.c b/mm/memblock.c index b65b687e2362..d4382095f8bd 100644 --- a/mm/memblock.c +++ b/mm/memblock.c @@ -184,7 +184,24 @@ static void __init_memblock memblock_remove_region(struct memblock_type *type, u } } -static int __init_memblock memblock_double_array(struct memblock_type *type) +/** + * memblock_double_array - double the size of the memblock regions array + * @type: memblock type of the regions array being doubled + * @new_area_start: starting address of memory range to avoid overlap with + * @new_area_size: size of memory range to avoid overlap with + * + * Double the size of the @type regions array. If memblock is being used to + * allocate memory for a new reserved regions array and there is a previously + * allocated memory range [@new_area_start,@new_area_start+@new_area_size] + * waiting to be reserved, ensure the memory used by the new array does + * not overlap. + * + * RETURNS: + * 0 on success, -1 on failure. + */ +static int __init_memblock memblock_double_array(struct memblock_type *type, + phys_addr_t new_area_start, + phys_addr_t new_area_size) { struct memblock_region *new_array, *old_array; phys_addr_t old_size, new_size, addr; @@ -222,7 +239,18 @@ static int __init_memblock memblock_double_array(struct memblock_type *type) new_array = kmalloc(new_size, GFP_KERNEL); addr = new_array ? __pa(new_array) : 0; } else { - addr = memblock_find_in_range(0, MEMBLOCK_ALLOC_ACCESSIBLE, new_size, sizeof(phys_addr_t)); + /* only exclude range when trying to double reserved.regions */ + if (type != &memblock.reserved) + new_area_start = new_area_size = 0; + + addr = memblock_find_in_range(new_area_start + new_area_size, + memblock.current_limit, + new_size, sizeof(phys_addr_t)); + if (!addr && new_area_size) + addr = memblock_find_in_range(0, + min(new_area_start, memblock.current_limit), + new_size, sizeof(phys_addr_t)); + new_array = addr ? __va(addr) : 0; } if (!addr) { @@ -399,7 +427,7 @@ repeat: */ if (!insert) { while (type->cnt + nr_new > type->max) - if (memblock_double_array(type) < 0) + if (memblock_double_array(type, obase, size) < 0) return -ENOMEM; insert = true; goto repeat; @@ -450,7 +478,7 @@ static int __init_memblock memblock_isolate_range(struct memblock_type *type, /* we'll create at most two more regions */ while (type->cnt + 2 > type->max) - if (memblock_double_array(type) < 0) + if (memblock_double_array(type, base, size) < 0) return -ENOMEM; for (i = 0; i < type->cnt; i++) { -- cgit v1.2.3-59-g8ed1b From 1e2c4e59d2b8797973471b4a287a43eac12a0f40 Mon Sep 17 00:00:00 2001 From: Dmitry Shmygov Date: Wed, 20 Jun 2012 15:51:40 +0400 Subject: USB: option: add id for Cellient MEN-200 Add vendor and product ID to option.c driver for Cellient MEN-200 EVDO Rev.B 450MHz data module. http://cellient.com Signed-off-by: Dmitry Shmygov Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index e668a2460bd4..396d968dddd9 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -497,6 +497,10 @@ static void option_instat_callback(struct urb *urb); /* MediaTek products */ #define MEDIATEK_VENDOR_ID 0x0e8d +/* Cellient products */ +#define CELLIENT_VENDOR_ID 0x2692 +#define CELLIENT_PRODUCT_MEN200 0x9005 + /* some devices interfaces need special handling due to a number of reasons */ enum option_blacklist_reason { OPTION_BLACKLIST_NONE = 0, @@ -1233,6 +1237,7 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a1, 0xff, 0x02, 0x01) }, { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a2, 0xff, 0x00, 0x00) }, { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a2, 0xff, 0x02, 0x01) }, /* MediaTek MT6276M modem & app port */ + { USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) }, { } /* Terminating entry */ }; MODULE_DEVICE_TABLE(usb, option_ids); -- cgit v1.2.3-59-g8ed1b From 0e3534c0417fef6e6535db8867a04798f2024e3f Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 20 Jun 2012 18:30:30 -0700 Subject: media: pms.c needs linux/slab.h drivers/media/video/pms.c uses kzalloc() and kfree() so it should include to fix build errors and a warning. drivers/media/video/pms.c:1047:2: error: implicit declaration of function 'kzalloc' drivers/media/video/pms.c:1047:6: warning: assignment makes pointer from integer without a cast drivers/media/video/pms.c:1116:2: error: implicit declaration of function 'kfree' Found in mmotm but applies to mainline. Signed-off-by: Randy Dunlap Cc: Hans Verkuil Signed-off-by: Linus Torvalds --- drivers/media/video/pms.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/video/pms.c b/drivers/media/video/pms.c index af2d9086d7e8..c370c2d87c17 100644 --- a/drivers/media/video/pms.c +++ b/drivers/media/video/pms.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3-59-g8ed1b From c4c0e9e544a0eb640798cc66e68f394fa4a561bf Mon Sep 17 00:00:00 2001 From: David Rientjes Date: Wed, 20 Jun 2012 18:00:12 -0700 Subject: mm, mempolicy: fix mbind() to do synchronous migration If the range passed to mbind() is not allocated on nodes set in the nodemask, it migrates the pages to respect the constraint. The final formal of migrate_pages() is a mode of type enum migrate_mode, not a boolean. do_mbind() is currently passing "true" which is the equivalent of MIGRATE_SYNC_LIGHT. This should instead be MIGRATE_SYNC for synchronous page migration. Signed-off-by: David Rientjes Signed-off-by: Linus Torvalds --- mm/mempolicy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/mempolicy.c b/mm/mempolicy.c index f15c1b24ca18..1d771e4200d2 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1177,7 +1177,7 @@ static long do_mbind(unsigned long start, unsigned long len, if (!list_empty(&pagelist)) { nr_failed = migrate_pages(&pagelist, new_vma_page, (unsigned long)vma, - false, true); + false, MIGRATE_SYNC); if (nr_failed) putback_lru_pages(&pagelist); } -- cgit v1.2.3-59-g8ed1b From d3decf3a0c1d28c80c76be170373f4c7a7217f09 Mon Sep 17 00:00:00 2001 From: Ozan Çağlayan Date: Thu, 14 Jun 2012 15:02:35 +0300 Subject: vga_switcheroo: Add include guard MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Guard vga_switcheroo.h against multiple inclusion. Signed-off-by: Ozan Çağlayan Signed-off-by: Dave Airlie --- include/linux/vga_switcheroo.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/include/linux/vga_switcheroo.h b/include/linux/vga_switcheroo.h index d844b7790ea6..ddb419cf4530 100644 --- a/include/linux/vga_switcheroo.h +++ b/include/linux/vga_switcheroo.h @@ -7,6 +7,9 @@ * vga_switcheroo.h - Support for laptop with dual GPU using one set of outputs */ +#ifndef _LINUX_VGA_SWITCHEROO_H_ +#define _LINUX_VGA_SWITCHEROO_H_ + #include struct pci_dev; @@ -73,3 +76,4 @@ static inline int vga_switcheroo_get_client_state(struct pci_dev *dev) { return #endif +#endif /* _LINUX_VGA_SWITCHEROO_H_ */ -- cgit v1.2.3-59-g8ed1b From b196a4980ff7bb54db478e2a408dc8b12be15304 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Tue, 19 Jun 2012 11:33:06 +0200 Subject: drm/edid: don't return stack garbage from supports_rb We need to initialize this to false, because the is_rb callback only ever sets it to true. Noticed while reading through the code. Cc: stable@vger.kernel.org Signed-Off-by: Daniel Vetter Reviewed-by: Adam Jackson Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_edid.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index eb92fe257a39..5873e481e5d2 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -610,7 +610,7 @@ static bool drm_monitor_supports_rb(struct edid *edid) { if (edid->revision >= 4) { - bool ret; + bool ret = false; drm_for_each_detailed_block((u8 *)edid, is_rb, &ret); return ret; } -- cgit v1.2.3-59-g8ed1b From 37f971b68009b8fadd322130787d693137302925 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Wed, 20 Jun 2012 12:53:25 +0200 Subject: ARM: mach-shmobile: armadillo800eva: Use late init machine hook Since commit 21cc1b7ede3cf456cf1d51f8a906093261f7c111 ("ARM: shmobile: use machine specific hook for late init") suspend and CPU idle are not initialized automatically anymore. Set shmobile_init_late() as the machine late init hook to initialize them. Signed-off-by: Laurent Pinchart Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/board-armadillo800eva.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-shmobile/board-armadillo800eva.c b/arch/arm/mach-shmobile/board-armadillo800eva.c index 9e37026ef9dd..9bd135531d76 100644 --- a/arch/arm/mach-shmobile/board-armadillo800eva.c +++ b/arch/arm/mach-shmobile/board-armadillo800eva.c @@ -779,6 +779,7 @@ DT_MACHINE_START(ARMADILLO800EVA_DT, "armadillo800eva") .init_irq = r8a7740_init_irq, .handle_irq = shmobile_handle_irq_intc, .init_machine = eva_init, + .init_late = shmobile_init_late, .timer = &shmobile_timer, .dt_compat = eva_boards_compat_dt, MACHINE_END -- cgit v1.2.3-59-g8ed1b From 14dd52f4389e206537488aeb2b85d6b21fc27196 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 20 Jun 2012 22:40:08 -0700 Subject: ARM: shmobile: kzm9g: use late init machine hook Since commit 21cc1b7ede3cf456cf1d51f8a906093261f7c111 ("ARM: shmobile: use machine specific hook for late init") suspend and CPU idle are not initialized automatically anymore. Set shmobile_init_late() as the machine late init hook to initialize them. Signed-off-by: Kuninori Morimoto Acked-by: Laurent Pinchart Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/board-kzm9g.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-shmobile/board-kzm9g.c b/arch/arm/mach-shmobile/board-kzm9g.c index d8e33b682832..c0ae815e7beb 100644 --- a/arch/arm/mach-shmobile/board-kzm9g.c +++ b/arch/arm/mach-shmobile/board-kzm9g.c @@ -455,6 +455,7 @@ DT_MACHINE_START(KZM9G_DT, "kzm9g") .init_irq = sh73a0_init_irq, .handle_irq = gic_handle_irq, .init_machine = kzm_init, + .init_late = shmobile_init_late, .timer = &shmobile_timer, .dt_compat = kzm9g_boards_compat_dt, MACHINE_END -- cgit v1.2.3-59-g8ed1b From c207d2df1c1b2a160b7d52229e5a43feea6a7d26 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Wed, 20 Jun 2012 22:41:34 -0700 Subject: ARM: shmobile: kzm9d: use late init machine hook Since commit 21cc1b7ede3cf456cf1d51f8a906093261f7c111 ("ARM: shmobile: use machine specific hook for late init") suspend and CPU idle are not initialized automatically anymore. Set shmobile_init_late() as the machine late init hook to initialize them. Signed-off-by: Kuninori Morimoto Acked-by: Laurent Pinchart Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/board-kzm9d.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-shmobile/board-kzm9d.c b/arch/arm/mach-shmobile/board-kzm9d.c index 7bc5e7d39f9b..6a33cf393428 100644 --- a/arch/arm/mach-shmobile/board-kzm9d.c +++ b/arch/arm/mach-shmobile/board-kzm9d.c @@ -80,6 +80,7 @@ DT_MACHINE_START(KZM9D_DT, "kzm9d") .init_irq = emev2_init_irq, .handle_irq = gic_handle_irq, .init_machine = kzm9d_add_standard_devices, + .init_late = shmobile_init_late, .timer = &shmobile_timer, .dt_compat = kzm9d_boards_compat_dt, MACHINE_END -- cgit v1.2.3-59-g8ed1b From 1c8f52a5e9539600543347bcdefafa1854e07986 Mon Sep 17 00:00:00 2001 From: Alexander Block Date: Tue, 19 Jun 2012 07:42:25 -0600 Subject: Btrfs: introduce btrfs_next_old_item We introduce btrfs_next_old_item that uses btrfs_next_old_leaf instead of btrfs_next_leaf. btrfs_next_item is also changed to simply call btrfs_next_old_item with time_seq being 0. Signed-off-by: Alexander Block Signed-off-by: Chris Mason --- fs/btrfs/ctree.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h index db15e9e7b91c..84ac723f58f8 100644 --- a/fs/btrfs/ctree.h +++ b/fs/btrfs/ctree.h @@ -2755,13 +2755,18 @@ static inline int btrfs_insert_empty_item(struct btrfs_trans_handle *trans, int btrfs_next_leaf(struct btrfs_root *root, struct btrfs_path *path); int btrfs_next_old_leaf(struct btrfs_root *root, struct btrfs_path *path, u64 time_seq); -static inline int btrfs_next_item(struct btrfs_root *root, struct btrfs_path *p) +static inline int btrfs_next_old_item(struct btrfs_root *root, + struct btrfs_path *p, u64 time_seq) { ++p->slots[0]; if (p->slots[0] >= btrfs_header_nritems(p->nodes[0])) - return btrfs_next_leaf(root, p); + return btrfs_next_old_leaf(root, p, time_seq); return 0; } +static inline int btrfs_next_item(struct btrfs_root *root, struct btrfs_path *p) +{ + return btrfs_next_old_item(root, p, 0); +} int btrfs_prev_leaf(struct btrfs_root *root, struct btrfs_path *path); int btrfs_leaf_free_space(struct btrfs_root *root, struct extent_buffer *leaf); int __must_check btrfs_drop_snapshot(struct btrfs_root *root, -- cgit v1.2.3-59-g8ed1b From 69bca40d41c613927b150c5392505f1894fe3010 Mon Sep 17 00:00:00 2001 From: Alexander Block Date: Tue, 19 Jun 2012 07:42:26 -0600 Subject: Btrfs: don't assume to be on the correct extent in add_all_parents add_all_parents did assume that path is already at a correct extent data item, which may not be true in case of data extents that were partly rewritten and splitted. We need to check if we're on a matching extent for every item and only for the ones after the first. The loop is changed to do this now. This patch also fixes a bug introduced with commit 3b127fd8 "Btrfs: remove obsolete btrfs_next_leaf call from __resolve_indirect_ref". The removal of next_leaf did sometimes result in slot==nritems when the above described case happens, and thus resulting in invalid values (e.g. wanted_obejctid) in add_all_parents (leading to missed backrefs or even crashes). Signed-off-by: Alexander Block Signed-off-by: Jan Schmidt Signed-off-by: Chris Mason --- fs/btrfs/backref.c | 94 ++++++++++++++++++++++++++++++------------------------ 1 file changed, 52 insertions(+), 42 deletions(-) diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index 8f7d1237b7a0..7301cdb4b2cb 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -179,61 +179,74 @@ static int __add_prelim_ref(struct list_head *head, u64 root_id, static int add_all_parents(struct btrfs_root *root, struct btrfs_path *path, struct ulist *parents, int level, - struct btrfs_key *key, u64 time_seq, + struct btrfs_key *key_for_search, u64 time_seq, u64 wanted_disk_byte, const u64 *extent_item_pos) { - int ret; - int slot = path->slots[level]; - struct extent_buffer *eb = path->nodes[level]; + int ret = 0; + int slot; + struct extent_buffer *eb; + struct btrfs_key key; struct btrfs_file_extent_item *fi; struct extent_inode_elem *eie = NULL; u64 disk_byte; - u64 wanted_objectid = key->objectid; -add_parent: - if (level == 0 && extent_item_pos) { - fi = btrfs_item_ptr(eb, slot, struct btrfs_file_extent_item); - ret = check_extent_in_eb(key, eb, fi, *extent_item_pos, &eie); + if (level != 0) { + eb = path->nodes[level]; + ret = ulist_add(parents, eb->start, 0, GFP_NOFS); if (ret < 0) return ret; - } - ret = ulist_add(parents, eb->start, (unsigned long)eie, GFP_NOFS); - if (ret < 0) - return ret; - - if (level != 0) return 0; + } /* - * if the current leaf is full with EXTENT_DATA items, we must - * check the next one if that holds a reference as well. - * ref->count cannot be used to skip this check. - * repeat this until we don't find any additional EXTENT_DATA items. + * We normally enter this function with the path already pointing to + * the first item to check. But sometimes, we may enter it with + * slot==nritems. In that case, go to the next leaf before we continue. */ - while (1) { - eie = NULL; + if (path->slots[0] >= btrfs_header_nritems(path->nodes[0])) ret = btrfs_next_old_leaf(root, path, time_seq); - if (ret < 0) - return ret; - if (ret) - return 0; + while (!ret) { eb = path->nodes[0]; - for (slot = 0; slot < btrfs_header_nritems(eb); ++slot) { - btrfs_item_key_to_cpu(eb, key, slot); - if (key->objectid != wanted_objectid || - key->type != BTRFS_EXTENT_DATA_KEY) - return 0; - fi = btrfs_item_ptr(eb, slot, - struct btrfs_file_extent_item); - disk_byte = btrfs_file_extent_disk_bytenr(eb, fi); - if (disk_byte == wanted_disk_byte) - goto add_parent; + slot = path->slots[0]; + + btrfs_item_key_to_cpu(eb, &key, slot); + + if (key.objectid != key_for_search->objectid || + key.type != BTRFS_EXTENT_DATA_KEY) + break; + + fi = btrfs_item_ptr(eb, slot, struct btrfs_file_extent_item); + disk_byte = btrfs_file_extent_disk_bytenr(eb, fi); + + if (disk_byte == wanted_disk_byte) { + eie = NULL; + if (extent_item_pos) { + ret = check_extent_in_eb(&key, eb, fi, + *extent_item_pos, + &eie); + if (ret < 0) + break; + } + if (!ret) { + ret = ulist_add(parents, eb->start, + (unsigned long)eie, GFP_NOFS); + if (ret < 0) + break; + if (!extent_item_pos) { + ret = btrfs_next_old_leaf(root, path, + time_seq); + continue; + } + } } + ret = btrfs_next_old_item(root, path, time_seq); } - return 0; + if (ret > 0) + ret = 0; + return ret; } /* @@ -250,7 +263,6 @@ static int __resolve_indirect_ref(struct btrfs_fs_info *fs_info, struct btrfs_path *path; struct btrfs_root *root; struct btrfs_key root_key; - struct btrfs_key key = {0}; struct extent_buffer *eb; int ret = 0; int root_level; @@ -295,11 +307,9 @@ static int __resolve_indirect_ref(struct btrfs_fs_info *fs_info, goto out; } - if (level == 0) - btrfs_item_key_to_cpu(eb, &key, path->slots[0]); - - ret = add_all_parents(root, path, parents, level, &key, time_seq, - ref->wanted_disk_byte, extent_item_pos); + ret = add_all_parents(root, path, parents, level, &ref->key_for_search, + time_seq, ref->wanted_disk_byte, + extent_item_pos); out: btrfs_free_path(path); return ret; -- cgit v1.2.3-59-g8ed1b From e18fca734278784bd6591de63ca148cc27344ca9 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Mon, 18 Jun 2012 07:23:18 -0600 Subject: Btrfs: add a missing spin_lock When fixing up the locking in the delayed ref destruction work I accidently broke the locking myself ;(. Add back a spin_lock that should be there and we are now all set. Thanks, Btrfs: add a missing spin_lock When fixing up the locking in the delayed ref destruction work I accidently broke the locking myself ;(. Add back a spin_lock that should be there and we are now all set. Thanks, Reported-by: Dan Carpenter Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/disk-io.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index e22c5bbf0223..7d7bc8eace86 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -3426,6 +3426,7 @@ int btrfs_destroy_delayed_refs(struct btrfs_transaction *trans, mutex_unlock(&head->mutex); btrfs_put_delayed_ref(ref); + spin_lock(&delayed_refs->lock); continue; } -- cgit v1.2.3-59-g8ed1b From cb77fcd88569cd2b7b25ecd4086ea932a53be9b3 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Fri, 15 Jun 2012 12:19:48 -0600 Subject: Btrfs: delay iput with async extents There is some concern that these iput()'s could be the final iputs and could induce lockups on people waiting on writeback. This would happen in the rare case that we don't create ordered extents because of an error, but it is theoretically possible and we already have a mechanism to deal with this so just make them delayed iputs to negate any worry. Signed-off-by: Josef Bacik Signed-off-by: Chris Mason --- fs/btrfs/inode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 3f2c8cbe5ba6..4a4f2d59a64b 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -987,7 +987,7 @@ static noinline void async_cow_start(struct btrfs_work *work) async_cow->start, async_cow->end, async_cow, &num_added); if (num_added == 0) { - iput(async_cow->inode); + btrfs_add_delayed_iput(async_cow->inode); async_cow->inode = NULL; } } @@ -1023,7 +1023,7 @@ static noinline void async_cow_free(struct btrfs_work *work) struct async_cow *async_cow; async_cow = container_of(work, struct async_cow, work); if (async_cow->inode) - iput(async_cow->inode); + btrfs_add_delayed_iput(async_cow->inode); kfree(async_cow); } -- cgit v1.2.3-59-g8ed1b From ce7d16a1752accbff1ff7c813594aad0b7168563 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 21 Jun 2012 10:05:56 -0300 Subject: [media] smiapp-core: fix compilation build error smiapp-core.c:2472:3: error: implicit declaration of function 'kzalloc' [-Werror=implicit-function-declaration] Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/smiapp/smiapp-core.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/video/smiapp/smiapp-core.c b/drivers/media/video/smiapp/smiapp-core.c index e8c93c89265a..9cf5bda35fbe 100644 --- a/drivers/media/video/smiapp/smiapp-core.c +++ b/drivers/media/video/smiapp/smiapp-core.c @@ -31,6 +31,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3-59-g8ed1b From b6a509df59c6abd0a2177e3be29642207711145d Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Wed, 20 Jun 2012 21:30:30 -0300 Subject: [media] media: pms.c needs linux/slab.h drivers/media/video/pms.c uses kzalloc() and kfree() so it should include to fix build errors and a warning. drivers/media/video/pms.c:1047:2: error: implicit declaration of function 'kzalloc' drivers/media/video/pms.c:1047:6: warning: assignment makes pointer from integer without a cast drivers/media/video/pms.c:1116:2: error: implicit declaration of function 'kfree' Found in mmotm but applies to mainline. Signed-off-by: Randy Dunlap Acked-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/pms.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/video/pms.c b/drivers/media/video/pms.c index 77f9c92186f4..b4c679b3fb0f 100644 --- a/drivers/media/video/pms.c +++ b/drivers/media/video/pms.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3-59-g8ed1b From 8e5a050901a16a62a7d2d4d4ef285eec8ae7203e Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 21 Jun 2012 15:49:33 +0200 Subject: ALSA: hda - Fix ALC272X codec detection The codec ALC272X is a special codec for some Dell machines, and its detection got broken in the recent kernel because SSID check (required by ALC272X check) was moved to the later point. Now we need to move this codec check to the right place, too. Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 12 ++++++------ 1 file changed, 6 insertions(+), 6 deletions(-) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index f8f4906e498d..41475ae0e769 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -6705,6 +6705,12 @@ static int patch_alc662(struct hda_codec *codec) alc_fix_pll_init(codec, 0x20, 0x04, 15); + alc_pick_fixup(codec, alc662_fixup_models, + alc662_fixup_tbl, alc662_fixups); + alc_apply_fixup(codec, ALC_FIXUP_ACT_PRE_PROBE); + + alc_auto_parse_customize_define(codec); + if ((alc_get_coef0(codec) & (1 << 14)) && codec->bus->pci->subsystem_vendor == 0x1025 && spec->cdefine.platform_type == 1) { @@ -6712,12 +6718,6 @@ static int patch_alc662(struct hda_codec *codec) goto error; } - alc_pick_fixup(codec, alc662_fixup_models, - alc662_fixup_tbl, alc662_fixups); - alc_apply_fixup(codec, ALC_FIXUP_ACT_PRE_PROBE); - - alc_auto_parse_customize_define(codec); - /* automatic parse from the BIOS config */ err = alc662_parse_auto_config(codec); if (err < 0) -- cgit v1.2.3-59-g8ed1b From e734568b675c985db2026848fefaac01c22977a5 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Fri, 8 Jun 2012 16:16:04 +0100 Subject: oprofile: perf: use NR_CPUS instead or nr_cpumask_bits for static array The OProfile perf backend uses a static array to keep track of the perf events on the system. When compiling with CONFIG_CPUMASK_OFFSTACK=y && SMP, nr_cpumask_bits is not a compile-time constant and the build will fail with: oprofile_perf.c:28: error: variably modified 'perf_events' at file scope This patch uses NR_CPUs instead of nr_cpumask_bits for the array initialisation. If this causes space problems in the future, we can always move to dynamic allocation for the events array. Cc: Matt Fleming Reported-by: Russell King - ARM Linux Signed-off-by: Will Deacon Cc: # v2.6.37+ Signed-off-by: Robert Richter --- drivers/oprofile/oprofile_perf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/oprofile/oprofile_perf.c b/drivers/oprofile/oprofile_perf.c index da14432806c6..efc4b7f308cf 100644 --- a/drivers/oprofile/oprofile_perf.c +++ b/drivers/oprofile/oprofile_perf.c @@ -25,7 +25,7 @@ static int oprofile_perf_enabled; static DEFINE_MUTEX(oprofile_perf_mutex); static struct op_counter_config *counter_config; -static struct perf_event **perf_events[nr_cpumask_bits]; +static struct perf_event **perf_events[NR_CPUS]; static int num_counters; /* -- cgit v1.2.3-59-g8ed1b From b3c5dce81584391af8b6dedb0647e65c17aab3a2 Mon Sep 17 00:00:00 2001 From: David Henningsson Date: Thu, 21 Jun 2012 16:03:01 +0200 Subject: ALSA: HDA: Add inverted internal mic quirk for Lenovo S205 The Lenovo Ideapad S205 has an internal mic where the right channel is phase inverted. BugLink: https://bugs.launchpad.net/bugs/884652 Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_conexant.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index 172370b3793b..2af0868f78ad 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -4466,6 +4466,7 @@ static const struct snd_pci_quirk cxt5066_fixups[] = { SND_PCI_QUIRK(0x17aa, 0x21ce, "Lenovo T420", CXT_PINCFG_LENOVO_TP410), SND_PCI_QUIRK(0x17aa, 0x21cf, "Lenovo T520", CXT_PINCFG_LENOVO_TP410), SND_PCI_QUIRK(0x17aa, 0x3975, "Lenovo U300s", CXT_FIXUP_STEREO_DMIC), + SND_PCI_QUIRK(0x17aa, 0x397b, "Lenovo S205", CXT_FIXUP_STEREO_DMIC), {} }; -- cgit v1.2.3-59-g8ed1b From 9a3a5dab63461b84213052888bf38a962b22d035 Mon Sep 17 00:00:00 2001 From: Brian Foster Date: Mon, 11 Jun 2012 10:39:43 -0400 Subject: xfs: check for stale inode before acquiring iflock on push An inode in the AIL can be flush locked and marked stale if a cluster free transaction occurs at the right time. The inode item is then marked as flushing, which causes xfsaild to spin and leaves the filesystem stalled. This is reproduced by running xfstests 273 in a loop for an extended period of time. Check for stale inodes before the flush lock. This marks the inode as pinned, leads to a log flush and allows the filesystem to proceed. Signed-off-by: Brian Foster Reviewed-by: Dave Chinner Reviewed-by: Christoph Hellwig Reviewed-by: Mark Tinguely Signed-off-by: Ben Myers --- fs/xfs/xfs_inode_item.c | 17 ++++++++--------- 1 file changed, 8 insertions(+), 9 deletions(-) diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c index 6cdbf90c6f7b..d041d47d9d86 100644 --- a/fs/xfs/xfs_inode_item.c +++ b/fs/xfs/xfs_inode_item.c @@ -504,6 +504,14 @@ xfs_inode_item_push( goto out_unlock; } + /* + * Stale inode items should force out the iclog. + */ + if (ip->i_flags & XFS_ISTALE) { + rval = XFS_ITEM_PINNED; + goto out_unlock; + } + /* * Someone else is already flushing the inode. Nothing we can do * here but wait for the flush to finish and remove the item from @@ -514,15 +522,6 @@ xfs_inode_item_push( goto out_unlock; } - /* - * Stale inode items should force out the iclog. - */ - if (ip->i_flags & XFS_ISTALE) { - xfs_ifunlock(ip); - xfs_iunlock(ip, XFS_ILOCK_SHARED); - return XFS_ITEM_PINNED; - } - ASSERT(iip->ili_fields != 0 || XFS_FORCED_SHUTDOWN(ip->i_mount)); ASSERT(iip->ili_logged == 0 || XFS_FORCED_SHUTDOWN(ip->i_mount)); -- cgit v1.2.3-59-g8ed1b From 76d095388b040229ea1aad7dea45be0cfa20f589 Mon Sep 17 00:00:00 2001 From: Dave Chinner Date: Tue, 12 Jun 2012 14:20:26 +1000 Subject: xfs: fix allocbt cursor leak in xfs_alloc_ag_vextent_near When we fail to find an matching extent near the requested extent specification during a left-right distance search in xfs_alloc_ag_vextent_near, we fail to free the original cursor that we used to look up the XFS_BTNUM_CNT tree and hence leak it. Reported-by: Chris J Arges Signed-off-by: Dave Chinner Reviewed-by: Christoph Hellwig Signed-off-by: Ben Myers --- fs/xfs/xfs_alloc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/xfs/xfs_alloc.c b/fs/xfs/xfs_alloc.c index a996e398692b..9d1aeb7e2734 100644 --- a/fs/xfs/xfs_alloc.c +++ b/fs/xfs/xfs_alloc.c @@ -1080,6 +1080,7 @@ restart: goto restart; } + xfs_btree_del_cursor(cnt_cur, XFS_BTREE_NOERROR); trace_xfs_alloc_size_neither(args); args->agbno = NULLAGBLOCK; return 0; -- cgit v1.2.3-59-g8ed1b From 59c84ed0ddc11f1823b4a33ace4fbcc948261bb2 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 6 Jun 2012 00:32:26 +0200 Subject: xfs: Fix overallocation in xfs_buf_allocate_memory() Commit de1cbee which removed b_file_offset in favor of b_bn introduced a bug causing xfs_buf_allocate_memory() to overestimate the number of necessary pages. The problem is that xfs_buf_alloc() sets b_bn to -1 and thus effectively every buffer is straddling a page boundary which causes xfs_buf_allocate_memory() to allocate two pages and use vmalloc() for access which is unnecessary. Dave says xfs_buf_alloc() doesn't need to set b_bn to -1 anymore since the buffer is inserted into the cache only after being fully initialized now. So just make xfs_buf_alloc() fill in proper block number from the beginning. CC: David Chinner Signed-off-by: Jan Kara Reviewed-by: Christoph Hellwig Reviewed-by: Dave Chinner Signed-off-by: Ben Myers --- fs/xfs/xfs_buf.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) diff --git a/fs/xfs/xfs_buf.c b/fs/xfs/xfs_buf.c index 172d3cc8f8cb..a4beb421018a 100644 --- a/fs/xfs/xfs_buf.c +++ b/fs/xfs/xfs_buf.c @@ -201,14 +201,7 @@ xfs_buf_alloc( bp->b_length = numblks; bp->b_io_length = numblks; bp->b_flags = flags; - - /* - * We do not set the block number here in the buffer because we have not - * finished initialising the buffer. We insert the buffer into the cache - * in this state, so this ensures that we are unable to do IO on a - * buffer that hasn't been fully initialised. - */ - bp->b_bn = XFS_BUF_DADDR_NULL; + bp->b_bn = blkno; atomic_set(&bp->b_pin_count, 0); init_waitqueue_head(&bp->b_waiters); @@ -567,11 +560,6 @@ xfs_buf_get( if (bp != new_bp) xfs_buf_free(new_bp); - /* - * Now we have a workable buffer, fill in the block number so - * that we can do IO on it. - */ - bp->b_bn = blkno; bp->b_io_length = bp->b_length; found: @@ -772,7 +760,7 @@ xfs_buf_get_uncached( int error, i; xfs_buf_t *bp; - bp = xfs_buf_alloc(target, 0, numblks, 0); + bp = xfs_buf_alloc(target, XFS_BUF_DADDR_NULL, numblks, 0); if (unlikely(bp == NULL)) goto fail; -- cgit v1.2.3-59-g8ed1b From 8866fc6fa55e31b2bce931b7963ff16641b39dc7 Mon Sep 17 00:00:00 2001 From: Ben Myers Date: Fri, 25 May 2012 15:45:36 -0500 Subject: xfs: shutdown xfs_sync_worker before the log Revert commit 1307bbd, which uses the s_umount semaphore to provide exclusion between xfs_sync_worker and unmount, in favor of shutting down the sync worker before freeing the log in xfs_log_unmount. This is a cleaner way of resolving the race between xfs_sync_worker and unmount than using s_umount. Signed-off-by: Ben Myers Reviewed-by: Mark Tinguely Reviewed-by: Dave Chinner --- fs/xfs/xfs_log.c | 1 + fs/xfs/xfs_sync.c | 32 ++++++++++++++++---------------- 2 files changed, 17 insertions(+), 16 deletions(-) diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index f30d9807dc48..0e1a64f0439c 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -810,6 +810,7 @@ xfs_log_unmount_write(xfs_mount_t *mp) void xfs_log_unmount(xfs_mount_t *mp) { + cancel_delayed_work_sync(&mp->m_sync_work); xfs_trans_ail_destroy(mp); xlog_dealloc_log(mp->m_log); } diff --git a/fs/xfs/xfs_sync.c b/fs/xfs/xfs_sync.c index c9d3409c5ca3..1e9ee064dbb2 100644 --- a/fs/xfs/xfs_sync.c +++ b/fs/xfs/xfs_sync.c @@ -386,23 +386,23 @@ xfs_sync_worker( * We shouldn't write/force the log if we are in the mount/unmount * process or on a read only filesystem. The workqueue still needs to be * active in both cases, however, because it is used for inode reclaim - * during these times. Use the s_umount semaphore to provide exclusion - * with unmount. + * during these times. Use the MS_ACTIVE flag to avoid doing anything + * during mount. Doing work during unmount is avoided by calling + * cancel_delayed_work_sync on this work queue before tearing down + * the ail and the log in xfs_log_unmount. */ - if (down_read_trylock(&mp->m_super->s_umount)) { - if (!(mp->m_flags & XFS_MOUNT_RDONLY)) { - /* dgc: errors ignored here */ - if (mp->m_super->s_frozen == SB_UNFROZEN && - xfs_log_need_covered(mp)) - error = xfs_fs_log_dummy(mp); - else - xfs_log_force(mp, 0); - - /* start pushing all the metadata that is currently - * dirty */ - xfs_ail_push_all(mp->m_ail); - } - up_read(&mp->m_super->s_umount); + if (!(mp->m_super->s_flags & MS_ACTIVE) && + !(mp->m_flags & XFS_MOUNT_RDONLY)) { + /* dgc: errors ignored here */ + if (mp->m_super->s_frozen == SB_UNFROZEN && + xfs_log_need_covered(mp)) + error = xfs_fs_log_dummy(mp); + else + xfs_log_force(mp, 0); + + /* start pushing all the metadata that is currently + * dirty */ + xfs_ail_push_all(mp->m_ail); } /* queue us up again */ -- cgit v1.2.3-59-g8ed1b From f7bdf03a99efc083608cd9c0c3e03abff311c79e Mon Sep 17 00:00:00 2001 From: Mark Tinguely Date: Thu, 14 Jun 2012 09:22:15 -0500 Subject: xfs: rename log structure to xlog Rename the XFS log structure to xlog to help crash distinquish it from the other logs in Linux. Signed-off-by: Mark Tinguely Reviewed-by: Christoph Hellwig Signed-off-by: Ben Myers --- fs/xfs/xfs_log.c | 76 ++++++++++++++++++++++++++++-------------------- fs/xfs/xfs_log_cil.c | 22 +++++++------- fs/xfs/xfs_log_priv.h | 46 +++++++++++++++++++---------- fs/xfs/xfs_log_recover.c | 38 ++++++++++++------------ fs/xfs/xfs_mount.h | 4 +-- fs/xfs/xfs_trace.h | 18 ++++++------ 6 files changed, 116 insertions(+), 88 deletions(-) diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c index 0e1a64f0439c..d90d4a388609 100644 --- a/fs/xfs/xfs_log.c +++ b/fs/xfs/xfs_log.c @@ -38,13 +38,21 @@ kmem_zone_t *xfs_log_ticket_zone; /* Local miscellaneous function prototypes */ -STATIC int xlog_commit_record(struct log *log, struct xlog_ticket *ticket, - xlog_in_core_t **, xfs_lsn_t *); +STATIC int +xlog_commit_record( + struct xlog *log, + struct xlog_ticket *ticket, + struct xlog_in_core **iclog, + xfs_lsn_t *commitlsnp); + STATIC xlog_t * xlog_alloc_log(xfs_mount_t *mp, xfs_buftarg_t *log_target, xfs_daddr_t blk_offset, int num_bblks); -STATIC int xlog_space_left(struct log *log, atomic64_t *head); +STATIC int +xlog_space_left( + struct xlog *log, + atomic64_t *head); STATIC int xlog_sync(xlog_t *log, xlog_in_core_t *iclog); STATIC void xlog_dealloc_log(xlog_t *log); @@ -64,8 +72,10 @@ STATIC void xlog_state_switch_iclogs(xlog_t *log, int eventual_size); STATIC void xlog_state_want_sync(xlog_t *log, xlog_in_core_t *iclog); -STATIC void xlog_grant_push_ail(struct log *log, - int need_bytes); +STATIC void +xlog_grant_push_ail( + struct xlog *log, + int need_bytes); STATIC void xlog_regrant_reserve_log_space(xlog_t *log, xlog_ticket_t *ticket); STATIC void xlog_ungrant_log_space(xlog_t *log, @@ -73,7 +83,9 @@ STATIC void xlog_ungrant_log_space(xlog_t *log, #if defined(DEBUG) STATIC void xlog_verify_dest_ptr(xlog_t *log, char *ptr); -STATIC void xlog_verify_grant_tail(struct log *log); +STATIC void +xlog_verify_grant_tail( + struct xlog *log); STATIC void xlog_verify_iclog(xlog_t *log, xlog_in_core_t *iclog, int count, boolean_t syncing); STATIC void xlog_verify_tail_lsn(xlog_t *log, xlog_in_core_t *iclog, @@ -89,9 +101,9 @@ STATIC int xlog_iclogs_empty(xlog_t *log); static void xlog_grant_sub_space( - struct log *log, - atomic64_t *head, - int bytes) + struct xlog *log, + atomic64_t *head, + int bytes) { int64_t head_val = atomic64_read(head); int64_t new, old; @@ -115,9 +127,9 @@ xlog_grant_sub_space( static void xlog_grant_add_space( - struct log *log, - atomic64_t *head, - int bytes) + struct xlog *log, + atomic64_t *head, + int bytes) { int64_t head_val = atomic64_read(head); int64_t new, old; @@ -165,7 +177,7 @@ xlog_grant_head_wake_all( static inline int xlog_ticket_reservation( - struct log *log, + struct xlog *log, struct xlog_grant_head *head, struct xlog_ticket *tic) { @@ -182,7 +194,7 @@ xlog_ticket_reservation( STATIC bool xlog_grant_head_wake( - struct log *log, + struct xlog *log, struct xlog_grant_head *head, int *free_bytes) { @@ -204,7 +216,7 @@ xlog_grant_head_wake( STATIC int xlog_grant_head_wait( - struct log *log, + struct xlog *log, struct xlog_grant_head *head, struct xlog_ticket *tic, int need_bytes) @@ -256,7 +268,7 @@ shutdown: */ STATIC int xlog_grant_head_check( - struct log *log, + struct xlog *log, struct xlog_grant_head *head, struct xlog_ticket *tic, int *need_bytes) @@ -323,7 +335,7 @@ xfs_log_regrant( struct xfs_mount *mp, struct xlog_ticket *tic) { - struct log *log = mp->m_log; + struct xlog *log = mp->m_log; int need_bytes; int error = 0; @@ -389,7 +401,7 @@ xfs_log_reserve( bool permanent, uint t_type) { - struct log *log = mp->m_log; + struct xlog *log = mp->m_log; struct xlog_ticket *tic; int need_bytes; int error = 0; @@ -465,7 +477,7 @@ xfs_log_done( struct xlog_in_core **iclog, uint flags) { - struct log *log = mp->m_log; + struct xlog *log = mp->m_log; xfs_lsn_t lsn = 0; if (XLOG_FORCED_SHUTDOWN(log) || @@ -839,7 +851,7 @@ void xfs_log_space_wake( struct xfs_mount *mp) { - struct log *log = mp->m_log; + struct xlog *log = mp->m_log; int free_bytes; if (XLOG_FORCED_SHUTDOWN(log)) @@ -917,7 +929,7 @@ xfs_lsn_t xlog_assign_tail_lsn_locked( struct xfs_mount *mp) { - struct log *log = mp->m_log; + struct xlog *log = mp->m_log; struct xfs_log_item *lip; xfs_lsn_t tail_lsn; @@ -966,7 +978,7 @@ xlog_assign_tail_lsn( */ STATIC int xlog_space_left( - struct log *log, + struct xlog *log, atomic64_t *head) { int free_bytes; @@ -1278,7 +1290,7 @@ out: */ STATIC int xlog_commit_record( - struct log *log, + struct xlog *log, struct xlog_ticket *ticket, struct xlog_in_core **iclog, xfs_lsn_t *commitlsnp) @@ -1312,7 +1324,7 @@ xlog_commit_record( */ STATIC void xlog_grant_push_ail( - struct log *log, + struct xlog *log, int need_bytes) { xfs_lsn_t threshold_lsn = 0; @@ -1791,7 +1803,7 @@ xlog_write_start_rec( static xlog_op_header_t * xlog_write_setup_ophdr( - struct log *log, + struct xlog *log, struct xlog_op_header *ophdr, struct xlog_ticket *ticket, uint flags) @@ -1874,7 +1886,7 @@ xlog_write_setup_copy( static int xlog_write_copy_finish( - struct log *log, + struct xlog *log, struct xlog_in_core *iclog, uint flags, int *record_cnt, @@ -1959,7 +1971,7 @@ xlog_write_copy_finish( */ int xlog_write( - struct log *log, + struct xlog *log, struct xfs_log_vec *log_vector, struct xlog_ticket *ticket, xfs_lsn_t *start_lsn, @@ -2822,7 +2834,7 @@ _xfs_log_force( uint flags, int *log_flushed) { - struct log *log = mp->m_log; + struct xlog *log = mp->m_log; struct xlog_in_core *iclog; xfs_lsn_t lsn; @@ -2970,7 +2982,7 @@ _xfs_log_force_lsn( uint flags, int *log_flushed) { - struct log *log = mp->m_log; + struct xlog *log = mp->m_log; struct xlog_in_core *iclog; int already_slept = 0; @@ -3148,7 +3160,7 @@ xfs_log_ticket_get( */ xlog_ticket_t * xlog_ticket_alloc( - struct log *log, + struct xlog *log, int unit_bytes, int cnt, char client, @@ -3279,7 +3291,7 @@ xlog_ticket_alloc( */ void xlog_verify_dest_ptr( - struct log *log, + struct xlog *log, char *ptr) { int i; @@ -3308,7 +3320,7 @@ xlog_verify_dest_ptr( */ STATIC void xlog_verify_grant_tail( - struct log *log) + struct xlog *log) { int tail_cycle, tail_blocks; int cycle, space; diff --git a/fs/xfs/xfs_log_cil.c b/fs/xfs/xfs_log_cil.c index 7d6197c58493..ddc4529d07d3 100644 --- a/fs/xfs/xfs_log_cil.c +++ b/fs/xfs/xfs_log_cil.c @@ -44,7 +44,7 @@ */ static struct xlog_ticket * xlog_cil_ticket_alloc( - struct log *log) + struct xlog *log) { struct xlog_ticket *tic; @@ -72,7 +72,7 @@ xlog_cil_ticket_alloc( */ void xlog_cil_init_post_recovery( - struct log *log) + struct xlog *log) { log->l_cilp->xc_ctx->ticket = xlog_cil_ticket_alloc(log); log->l_cilp->xc_ctx->sequence = 1; @@ -182,7 +182,7 @@ xlog_cil_prepare_log_vecs( */ STATIC void xfs_cil_prepare_item( - struct log *log, + struct xlog *log, struct xfs_log_vec *lv, int *len, int *diff_iovecs) @@ -231,7 +231,7 @@ xfs_cil_prepare_item( */ static void xlog_cil_insert_items( - struct log *log, + struct xlog *log, struct xfs_log_vec *log_vector, struct xlog_ticket *ticket) { @@ -373,7 +373,7 @@ xlog_cil_committed( */ STATIC int xlog_cil_push( - struct log *log) + struct xlog *log) { struct xfs_cil *cil = log->l_cilp; struct xfs_log_vec *lv; @@ -601,7 +601,7 @@ xlog_cil_push_work( */ static void xlog_cil_push_background( - struct log *log) + struct xlog *log) { struct xfs_cil *cil = log->l_cilp; @@ -629,7 +629,7 @@ xlog_cil_push_background( static void xlog_cil_push_foreground( - struct log *log, + struct xlog *log, xfs_lsn_t push_seq) { struct xfs_cil *cil = log->l_cilp; @@ -683,7 +683,7 @@ xfs_log_commit_cil( xfs_lsn_t *commit_lsn, int flags) { - struct log *log = mp->m_log; + struct xlog *log = mp->m_log; int log_flags = 0; struct xfs_log_vec *log_vector; @@ -754,7 +754,7 @@ xfs_log_commit_cil( */ xfs_lsn_t xlog_cil_force_lsn( - struct log *log, + struct xlog *log, xfs_lsn_t sequence) { struct xfs_cil *cil = log->l_cilp; @@ -833,7 +833,7 @@ xfs_log_item_in_current_chkpt( */ int xlog_cil_init( - struct log *log) + struct xlog *log) { struct xfs_cil *cil; struct xfs_cil_ctx *ctx; @@ -869,7 +869,7 @@ xlog_cil_init( void xlog_cil_destroy( - struct log *log) + struct xlog *log) { if (log->l_cilp->xc_ctx) { if (log->l_cilp->xc_ctx->ticket) diff --git a/fs/xfs/xfs_log_priv.h b/fs/xfs/xfs_log_priv.h index 5bc33261f5be..72eba2201b14 100644 --- a/fs/xfs/xfs_log_priv.h +++ b/fs/xfs/xfs_log_priv.h @@ -19,7 +19,7 @@ #define __XFS_LOG_PRIV_H__ struct xfs_buf; -struct log; +struct xlog; struct xlog_ticket; struct xfs_mount; @@ -352,7 +352,7 @@ typedef struct xlog_in_core { struct xlog_in_core *ic_next; struct xlog_in_core *ic_prev; struct xfs_buf *ic_bp; - struct log *ic_log; + struct xlog *ic_log; int ic_size; int ic_offset; int ic_bwritecnt; @@ -409,7 +409,7 @@ struct xfs_cil_ctx { * operations almost as efficient as the old logging methods. */ struct xfs_cil { - struct log *xc_log; + struct xlog *xc_log; struct list_head xc_cil; spinlock_t xc_cil_lock; struct xfs_cil_ctx *xc_ctx; @@ -487,7 +487,7 @@ struct xlog_grant_head { * overflow 31 bits worth of byte offset, so using a byte number will mean * that round off problems won't occur when releasing partial reservations. */ -typedef struct log { +typedef struct xlog { /* The following fields don't need locking */ struct xfs_mount *l_mp; /* mount point */ struct xfs_ail *l_ailp; /* AIL log is working with */ @@ -553,9 +553,14 @@ extern int xlog_recover_finish(xlog_t *log); extern void xlog_pack_data(xlog_t *log, xlog_in_core_t *iclog, int); extern kmem_zone_t *xfs_log_ticket_zone; -struct xlog_ticket *xlog_ticket_alloc(struct log *log, int unit_bytes, - int count, char client, bool permanent, - xfs_km_flags_t alloc_flags); +struct xlog_ticket * +xlog_ticket_alloc( + struct xlog *log, + int unit_bytes, + int count, + char client, + bool permanent, + xfs_km_flags_t alloc_flags); static inline void @@ -567,9 +572,14 @@ xlog_write_adv_cnt(void **ptr, int *len, int *off, size_t bytes) } void xlog_print_tic_res(struct xfs_mount *mp, struct xlog_ticket *ticket); -int xlog_write(struct log *log, struct xfs_log_vec *log_vector, - struct xlog_ticket *tic, xfs_lsn_t *start_lsn, - xlog_in_core_t **commit_iclog, uint flags); +int +xlog_write( + struct xlog *log, + struct xfs_log_vec *log_vector, + struct xlog_ticket *tic, + xfs_lsn_t *start_lsn, + struct xlog_in_core **commit_iclog, + uint flags); /* * When we crack an atomic LSN, we sample it first so that the value will not @@ -629,17 +639,23 @@ xlog_assign_grant_head(atomic64_t *head, int cycle, int space) /* * Committed Item List interfaces */ -int xlog_cil_init(struct log *log); -void xlog_cil_init_post_recovery(struct log *log); -void xlog_cil_destroy(struct log *log); +int +xlog_cil_init(struct xlog *log); +void +xlog_cil_init_post_recovery(struct xlog *log); +void +xlog_cil_destroy(struct xlog *log); /* * CIL force routines */ -xfs_lsn_t xlog_cil_force_lsn(struct log *log, xfs_lsn_t sequence); +xfs_lsn_t +xlog_cil_force_lsn( + struct xlog *log, + xfs_lsn_t sequence); static inline void -xlog_cil_force(struct log *log) +xlog_cil_force(struct xlog *log) { xlog_cil_force_lsn(log, log->l_cilp->xc_current_sequence); } diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c index ca386909131a..a7be98abd6a9 100644 --- a/fs/xfs/xfs_log_recover.c +++ b/fs/xfs/xfs_log_recover.c @@ -1471,8 +1471,8 @@ xlog_recover_add_item( STATIC int xlog_recover_add_to_cont_trans( - struct log *log, - xlog_recover_t *trans, + struct xlog *log, + struct xlog_recover *trans, xfs_caddr_t dp, int len) { @@ -1517,8 +1517,8 @@ xlog_recover_add_to_cont_trans( */ STATIC int xlog_recover_add_to_trans( - struct log *log, - xlog_recover_t *trans, + struct xlog *log, + struct xlog_recover *trans, xfs_caddr_t dp, int len) { @@ -1588,8 +1588,8 @@ xlog_recover_add_to_trans( */ STATIC int xlog_recover_reorder_trans( - struct log *log, - xlog_recover_t *trans, + struct xlog *log, + struct xlog_recover *trans, int pass) { xlog_recover_item_t *item, *n; @@ -1642,8 +1642,8 @@ xlog_recover_reorder_trans( */ STATIC int xlog_recover_buffer_pass1( - struct log *log, - xlog_recover_item_t *item) + struct xlog *log, + struct xlog_recover_item *item) { xfs_buf_log_format_t *buf_f = item->ri_buf[0].i_addr; struct list_head *bucket; @@ -1696,7 +1696,7 @@ xlog_recover_buffer_pass1( */ STATIC int xlog_check_buffer_cancelled( - struct log *log, + struct xlog *log, xfs_daddr_t blkno, uint len, ushort flags) @@ -2689,9 +2689,9 @@ xlog_recover_free_trans( STATIC int xlog_recover_commit_pass1( - struct log *log, - struct xlog_recover *trans, - xlog_recover_item_t *item) + struct xlog *log, + struct xlog_recover *trans, + struct xlog_recover_item *item) { trace_xfs_log_recover_item_recover(log, trans, item, XLOG_RECOVER_PASS1); @@ -2716,10 +2716,10 @@ xlog_recover_commit_pass1( STATIC int xlog_recover_commit_pass2( - struct log *log, - struct xlog_recover *trans, - struct list_head *buffer_list, - xlog_recover_item_t *item) + struct xlog *log, + struct xlog_recover *trans, + struct list_head *buffer_list, + struct xlog_recover_item *item) { trace_xfs_log_recover_item_recover(log, trans, item, XLOG_RECOVER_PASS2); @@ -2753,7 +2753,7 @@ xlog_recover_commit_pass2( */ STATIC int xlog_recover_commit_trans( - struct log *log, + struct xlog *log, struct xlog_recover *trans, int pass) { @@ -2793,8 +2793,8 @@ out: STATIC int xlog_recover_unmount_trans( - struct log *log, - xlog_recover_t *trans) + struct xlog *log, + struct xlog_recover *trans) { /* Do nothing now */ xfs_warn(log->l_mp, "%s: Unmount LR", __func__); diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h index 8b89c5ac72d9..90c1fc9eaea4 100644 --- a/fs/xfs/xfs_mount.h +++ b/fs/xfs/xfs_mount.h @@ -53,7 +53,7 @@ typedef struct xfs_trans_reservations { #include "xfs_sync.h" -struct log; +struct xlog; struct xfs_mount_args; struct xfs_inode; struct xfs_bmbt_irec; @@ -133,7 +133,7 @@ typedef struct xfs_mount { uint m_readio_blocks; /* min read size blocks */ uint m_writeio_log; /* min write size log bytes */ uint m_writeio_blocks; /* min write size blocks */ - struct log *m_log; /* log specific stuff */ + struct xlog *m_log; /* log specific stuff */ int m_logbufs; /* number of log buffers */ int m_logbsize; /* size of each log buffer */ uint m_rsumlevels; /* rt summary levels */ diff --git a/fs/xfs/xfs_trace.h b/fs/xfs/xfs_trace.h index 7cf9d3529e51..caf5dabfd553 100644 --- a/fs/xfs/xfs_trace.h +++ b/fs/xfs/xfs_trace.h @@ -32,7 +32,7 @@ struct xfs_da_node_entry; struct xfs_dquot; struct xfs_log_item; struct xlog_ticket; -struct log; +struct xlog; struct xlog_recover; struct xlog_recover_item; struct xfs_buf_log_format; @@ -762,7 +762,7 @@ DEFINE_DQUOT_EVENT(xfs_dqflush_force); DEFINE_DQUOT_EVENT(xfs_dqflush_done); DECLARE_EVENT_CLASS(xfs_loggrant_class, - TP_PROTO(struct log *log, struct xlog_ticket *tic), + TP_PROTO(struct xlog *log, struct xlog_ticket *tic), TP_ARGS(log, tic), TP_STRUCT__entry( __field(dev_t, dev) @@ -830,7 +830,7 @@ DECLARE_EVENT_CLASS(xfs_loggrant_class, #define DEFINE_LOGGRANT_EVENT(name) \ DEFINE_EVENT(xfs_loggrant_class, name, \ - TP_PROTO(struct log *log, struct xlog_ticket *tic), \ + TP_PROTO(struct xlog *log, struct xlog_ticket *tic), \ TP_ARGS(log, tic)) DEFINE_LOGGRANT_EVENT(xfs_log_done_nonperm); DEFINE_LOGGRANT_EVENT(xfs_log_done_perm); @@ -1664,7 +1664,7 @@ DEFINE_SWAPEXT_EVENT(xfs_swap_extent_before); DEFINE_SWAPEXT_EVENT(xfs_swap_extent_after); DECLARE_EVENT_CLASS(xfs_log_recover_item_class, - TP_PROTO(struct log *log, struct xlog_recover *trans, + TP_PROTO(struct xlog *log, struct xlog_recover *trans, struct xlog_recover_item *item, int pass), TP_ARGS(log, trans, item, pass), TP_STRUCT__entry( @@ -1698,7 +1698,7 @@ DECLARE_EVENT_CLASS(xfs_log_recover_item_class, #define DEFINE_LOG_RECOVER_ITEM(name) \ DEFINE_EVENT(xfs_log_recover_item_class, name, \ - TP_PROTO(struct log *log, struct xlog_recover *trans, \ + TP_PROTO(struct xlog *log, struct xlog_recover *trans, \ struct xlog_recover_item *item, int pass), \ TP_ARGS(log, trans, item, pass)) @@ -1709,7 +1709,7 @@ DEFINE_LOG_RECOVER_ITEM(xfs_log_recover_item_reorder_tail); DEFINE_LOG_RECOVER_ITEM(xfs_log_recover_item_recover); DECLARE_EVENT_CLASS(xfs_log_recover_buf_item_class, - TP_PROTO(struct log *log, struct xfs_buf_log_format *buf_f), + TP_PROTO(struct xlog *log, struct xfs_buf_log_format *buf_f), TP_ARGS(log, buf_f), TP_STRUCT__entry( __field(dev_t, dev) @@ -1739,7 +1739,7 @@ DECLARE_EVENT_CLASS(xfs_log_recover_buf_item_class, #define DEFINE_LOG_RECOVER_BUF_ITEM(name) \ DEFINE_EVENT(xfs_log_recover_buf_item_class, name, \ - TP_PROTO(struct log *log, struct xfs_buf_log_format *buf_f), \ + TP_PROTO(struct xlog *log, struct xfs_buf_log_format *buf_f), \ TP_ARGS(log, buf_f)) DEFINE_LOG_RECOVER_BUF_ITEM(xfs_log_recover_buf_not_cancel); @@ -1752,7 +1752,7 @@ DEFINE_LOG_RECOVER_BUF_ITEM(xfs_log_recover_buf_reg_buf); DEFINE_LOG_RECOVER_BUF_ITEM(xfs_log_recover_buf_dquot_buf); DECLARE_EVENT_CLASS(xfs_log_recover_ino_item_class, - TP_PROTO(struct log *log, struct xfs_inode_log_format *in_f), + TP_PROTO(struct xlog *log, struct xfs_inode_log_format *in_f), TP_ARGS(log, in_f), TP_STRUCT__entry( __field(dev_t, dev) @@ -1790,7 +1790,7 @@ DECLARE_EVENT_CLASS(xfs_log_recover_ino_item_class, ) #define DEFINE_LOG_RECOVER_INO_ITEM(name) \ DEFINE_EVENT(xfs_log_recover_ino_item_class, name, \ - TP_PROTO(struct log *log, struct xfs_inode_log_format *in_f), \ + TP_PROTO(struct xlog *log, struct xfs_inode_log_format *in_f), \ TP_ARGS(log, in_f)) DEFINE_LOG_RECOVER_INO_ITEM(xfs_log_recover_inode_recover); -- cgit v1.2.3-59-g8ed1b From 88a9e31c506c00c8b7a2f1611406d0e38dcb33b3 Mon Sep 17 00:00:00 2001 From: Eliad Peller Date: Fri, 1 Jun 2012 11:14:03 +0300 Subject: mac80211: clear ifmgd->bssid only after building DELBA ieee80211_set_disassoc() clears ifmgd->bssid before building DELBA frames, resulting in frames with invalid bssid ("00:00:00:00:00:00"). Fix it by clearing ifmgd->bssid only after building all the needed frames. After this change, we no longer need to save the bssid (before clearing it), so remove the local array. Reported-by: Ido Yariv Cc: stable@vger.kernel.org Signed-off-by: Eliad Peller Signed-off-by: Johannes Berg --- net/mac80211/mlme.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 66e4fcdd1c6b..a4bb856de08f 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -1342,7 +1342,6 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct sta_info *sta; u32 changed = 0; - u8 bssid[ETH_ALEN]; ASSERT_MGD_MTX(ifmgd); @@ -1354,10 +1353,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, ieee80211_stop_poll(sdata); - memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN); - ifmgd->associated = NULL; - memset(ifmgd->bssid, 0, ETH_ALEN); /* * we need to commit the associated = NULL change because the @@ -1377,7 +1373,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, netif_carrier_off(sdata->dev); mutex_lock(&local->sta_mtx); - sta = sta_info_get(sdata, bssid); + sta = sta_info_get(sdata, ifmgd->bssid); if (sta) { set_sta_flag(sta, WLAN_STA_BLOCK_BA); ieee80211_sta_tear_down_BA_sessions(sta, tx); @@ -1386,13 +1382,16 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata, /* deauthenticate/disassociate now */ if (tx || frame_buf) - ieee80211_send_deauth_disassoc(sdata, bssid, stype, reason, - tx, frame_buf); + ieee80211_send_deauth_disassoc(sdata, ifmgd->bssid, stype, + reason, tx, frame_buf); /* flush out frame */ if (tx) drv_flush(local, false); + /* clear bssid only after building the needed mgmt frames */ + memset(ifmgd->bssid, 0, ETH_ALEN); + /* remove AP and TDLS peers */ sta_info_flush(local, sdata); -- cgit v1.2.3-59-g8ed1b From 561038f0a8aa1de272a2ac5dad24cc8246d9f496 Mon Sep 17 00:00:00 2001 From: Djamil Elaidi Date: Sun, 17 Jun 2012 11:57:51 -0600 Subject: ARM: OMAP4+: hwmod: fix issue causing IPs not going back to Smart-Standby If an IP is configured in Smart-Standby-Wakeup, when disabling wakeup feature the IP will not go back to Smart-Standby, but will remain in Smart-Standby-Wakeup. Signed-off-by: Djamil Elaidi Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index bf86f7e8f91f..773193670ea2 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -530,7 +530,7 @@ static int _disable_wakeup(struct omap_hwmod *oh, u32 *v) if (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP) _set_slave_idlemode(oh, HWMOD_IDLEMODE_SMART, v); if (oh->class->sysc->idlemodes & MSTANDBY_SMART_WKUP) - _set_master_standbymode(oh, HWMOD_IDLEMODE_SMART_WKUP, v); + _set_master_standbymode(oh, HWMOD_IDLEMODE_SMART, v); /* XXX test pwrdm_get_wken for this hwmod's subsystem */ -- cgit v1.2.3-59-g8ed1b From 252a4c5443ec4d0bd310ae5b0d1b7f9c5b1e7f46 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Sun, 17 Jun 2012 11:57:51 -0600 Subject: ARM: OMAP4: hwmod data: fix 32k sync timer idle modes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The 32k sync timer IP block target idle modes in the hwmod data are incorrect. The IP block does not support any smart-idle modes. Update the data to reflect the correct modes. This problem was initially identified and a diff fragment posted to the lists by Benoît Cousson . A patch description bug in the first version was also identified by Benoît. Signed-off-by: Paul Walmsley Cc: Benoît Cousson Cc: Tero Kristo --- arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 950454a3fa31..c4c9cdd4c0cf 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -393,8 +393,7 @@ static struct omap_hwmod_class_sysconfig omap44xx_counter_sysc = { .rev_offs = 0x0000, .sysc_offs = 0x0004, .sysc_flags = SYSC_HAS_SIDLEMODE, - .idlemodes = (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART | - SIDLE_SMART_WKUP), + .idlemodes = (SIDLE_FORCE | SIDLE_NO), .sysc_fields = &omap_hwmod_sysc_type1, }; -- cgit v1.2.3-59-g8ed1b From 9a47d32d5c4b91a4ce4c459f3b7b0290185e7578 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Sun, 17 Jun 2012 11:57:52 -0600 Subject: ARM: OMAP4: clock data: add clockdomains for clocks used as main clocks MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Until the OMAP4 code is converted to disable the use of the clock framework-based clockdomain enable/disable sequence, any clock used as a hwmod main_clk must have a clockdomain associated with it. This patch populates some clock structure clockdomain names to resolve the following warnings during kernel init: omap_hwmod: dpll_mpu_m2_ck: missing clockdomain for dpll_mpu_m2_ck. omap_hwmod: trace_clk_div_ck: missing clockdomain for trace_clk_div_ck. omap_hwmod: l3_div_ck: missing clockdomain for l3_div_ck. omap_hwmod: ddrphy_ck: missing clockdomain for ddrphy_ck. Signed-off-by: Paul Walmsley Cc: Rajendra Nayak Cc: Benoît Cousson --- arch/arm/mach-omap2/clock44xx_data.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c index 2172f6603848..e2b701e164f6 100644 --- a/arch/arm/mach-omap2/clock44xx_data.c +++ b/arch/arm/mach-omap2/clock44xx_data.c @@ -84,6 +84,7 @@ static struct clk slimbus_clk = { static struct clk sys_32k_ck = { .name = "sys_32k_ck", + .clkdm_name = "prm_clkdm", .rate = 32768, .ops = &clkops_null, }; @@ -512,6 +513,7 @@ static struct clk ddrphy_ck = { .name = "ddrphy_ck", .parent = &dpll_core_m2_ck, .ops = &clkops_null, + .clkdm_name = "l3_emif_clkdm", .fixed_div = 2, .recalc = &omap_fixed_divisor_recalc, }; @@ -769,6 +771,7 @@ static const struct clksel dpll_mpu_m2_div[] = { static struct clk dpll_mpu_m2_ck = { .name = "dpll_mpu_m2_ck", .parent = &dpll_mpu_ck, + .clkdm_name = "cm_clkdm", .clksel = dpll_mpu_m2_div, .clksel_reg = OMAP4430_CM_DIV_M2_DPLL_MPU, .clksel_mask = OMAP4430_DPLL_CLKOUT_DIV_MASK, @@ -1149,6 +1152,7 @@ static const struct clksel l3_div_div[] = { static struct clk l3_div_ck = { .name = "l3_div_ck", .parent = &div_core_ck, + .clkdm_name = "cm_clkdm", .clksel = l3_div_div, .clksel_reg = OMAP4430_CM_CLKSEL_CORE, .clksel_mask = OMAP4430_CLKSEL_L3_MASK, @@ -2824,6 +2828,7 @@ static const struct clksel trace_clk_div_div[] = { static struct clk trace_clk_div_ck = { .name = "trace_clk_div_ck", .parent = &pmd_trace_clk_mux_ck, + .clkdm_name = "emu_sys_clkdm", .clksel = trace_clk_div_div, .clksel_reg = OMAP4430_CM_EMU_DEBUGSS_CLKCTRL, .clksel_mask = OMAP4430_CLKSEL_PMD_TRACE_CLK_MASK, -- cgit v1.2.3-59-g8ed1b From b8f15b7e1dd3638d35cfff85571df1d7ea96e35e Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Sun, 17 Jun 2012 11:57:53 -0600 Subject: ARM: OMAP2+: CM: increase the module disable timeout Increase the timeout for disabling an IP block to five milliseconds. This is to handle the usb_host_fs idle latency, which takes almost four milliseconds after a host controller reset. This is the second of two patches needed to resolve the following boot warning: omap_hwmod: usb_host_fs: _wait_target_disable failed Thanks to Sergei Shtylyov for finding an unrelated hunk in a previous version of this patch. Signed-off-by: Paul Walmsley Cc: Sergei Shtylyov Cc: Tero Kristo --- arch/arm/mach-omap2/cm.h | 11 +++++++++++ arch/arm/mach-omap2/cminst44xx.c | 4 ++-- 2 files changed, 13 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-omap2/cm.h b/arch/arm/mach-omap2/cm.h index a7bc096bd407..f24e3f7a2bbc 100644 --- a/arch/arm/mach-omap2/cm.h +++ b/arch/arm/mach-omap2/cm.h @@ -22,4 +22,15 @@ */ #define MAX_MODULE_READY_TIME 2000 +/* + * MAX_MODULE_DISABLE_TIME: max duration in microseconds to wait for + * the PRCM to request that a module enter the inactive state in the + * case of OMAP2 & 3. In the case of OMAP4 this is the max duration + * in microseconds for the module to reach the inactive state from + * a functional state. + * XXX FSUSB on OMAP4430 takes ~4ms to idle after reset during + * kernel init. + */ +#define MAX_MODULE_DISABLE_TIME 5000 + #endif diff --git a/arch/arm/mach-omap2/cminst44xx.c b/arch/arm/mach-omap2/cminst44xx.c index 8c86d294b1a3..1a39945d9ff8 100644 --- a/arch/arm/mach-omap2/cminst44xx.c +++ b/arch/arm/mach-omap2/cminst44xx.c @@ -313,9 +313,9 @@ int omap4_cminst_wait_module_idle(u8 part, u16 inst, s16 cdoffs, u16 clkctrl_off omap_test_timeout((_clkctrl_idlest(part, inst, cdoffs, clkctrl_offs) == CLKCTRL_IDLEST_DISABLED), - MAX_MODULE_READY_TIME, i); + MAX_MODULE_DISABLE_TIME, i); - return (i < MAX_MODULE_READY_TIME) ? 0 : -EBUSY; + return (i < MAX_MODULE_DISABLE_TIME) ? 0 : -EBUSY; } /** -- cgit v1.2.3-59-g8ed1b From 65e25976b75c4996c5650afadc4180db09ec7475 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Sun, 17 Jun 2012 12:00:58 -0600 Subject: ARM: OMAP2+: mux: fix sparse warning Commit bbd707acee279a61177a604822db92e8164d00db ("ARM: omap2: use machine specific hook for late init") resulted in the addition of this sparse warning: arch/arm/mach-omap2/mux.c:791:12: warning: symbol 'omap_mux_late_init' was not declared. Should it be static? Fix by including the header file containing the prototype. Signed-off-by: Paul Walmsley Cc: Shawn Guo Cc: Tony Lindgren --- arch/arm/mach-omap2/mux.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c index 80e55c5c9998..d3ef99c5cad8 100644 --- a/arch/arm/mach-omap2/mux.c +++ b/arch/arm/mach-omap2/mux.c @@ -41,6 +41,7 @@ #include "control.h" #include "mux.h" #include "prm.h" +#include "common.h" #define OMAP_MUX_BASE_OFFSET 0x30 /* Offset from CTRL_BASE */ #define OMAP_MUX_BASE_SZ 0x5ca -- cgit v1.2.3-59-g8ed1b From dc57aef503859dbf724f6126c58b2e1672e215f3 Mon Sep 17 00:00:00 2001 From: Ricardo Neri Date: Thu, 21 Jun 2012 10:08:53 +0200 Subject: ARM: OMAP4: hwmod data: Force HDMI in no-idle while enabled As per the OMAP4 documentation, audio over HDMI must be transmitted in no-idle mode. This patch adds the HWMOD_SWSUP_SIDLE so that omap_hwmod uses no-idle/force-idle settings instead of smart-idle mode. This is required as the DSS interface clock is used as functional clock for the HDMI wrapper audio FIFO. If no-idle mode is not used, audio could be choppy, have bad quality or not be audible at all. Signed-off-by: Ricardo Neri [b-cousson@ti.com: Update the subject and align the .flags location with the script template] Signed-off-by: Benoit Cousson Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index c4c9cdd4c0cf..f30e861ce6d9 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -853,6 +853,11 @@ static struct omap_hwmod omap44xx_dss_hdmi_hwmod = { .name = "dss_hdmi", .class = &omap44xx_hdmi_hwmod_class, .clkdm_name = "l3_dss_clkdm", + /* + * HDMI audio requires to use no-idle mode. Hence, + * set idle mode by software. + */ + .flags = HWMOD_SWSUP_SIDLE, .mpu_irqs = omap44xx_dss_hdmi_irqs, .sdma_reqs = omap44xx_dss_hdmi_sdma_reqs, .main_clk = "dss_48mhz_clk", -- cgit v1.2.3-59-g8ed1b From 59bbe27ba0f6bae1d85f1521e43181d98ee9c5ab Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Fri, 22 Jun 2012 11:04:55 +0100 Subject: drm: drop comment about this header being autogenerated. This comment is well out of date. Signed-off-by: Dave Airlie --- include/drm/drm_pciids.h | 4 ---- 1 file changed, 4 deletions(-) diff --git a/include/drm/drm_pciids.h b/include/drm/drm_pciids.h index 81368ab6c611..a7aec391b7b7 100644 --- a/include/drm/drm_pciids.h +++ b/include/drm/drm_pciids.h @@ -1,7 +1,3 @@ -/* - This file is auto-generated from the drm_pciids.txt in the DRM CVS - Please contact dri-devel@lists.sf.net to add new cards to this list -*/ #define radeon_PCI_IDS \ {0x1002, 0x3150, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY}, \ {0x1002, 0x3151, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RV380|RADEON_IS_MOBILITY|RADEON_NEW_MEMMAP}, \ -- cgit v1.2.3-59-g8ed1b From dc8738d95bb45d20b2141f1fe3e1cafb05be09f9 Mon Sep 17 00:00:00 2001 From: Moiz Sonasath Date: Tue, 12 Jun 2012 20:17:12 +0300 Subject: usb: otg: twl6030-usb: Fix twl writes There were mistakes in writing to few twl registers. There was interchange in the parameters being passed to twl6030_writeb(). Signed-off-by: Moiz Sonasath Signed-off-by: Ruslan Bilovol Signed-off-by: Felipe Balbi --- drivers/usb/otg/twl6030-usb.c | 15 ++++++--------- 1 file changed, 6 insertions(+), 9 deletions(-) diff --git a/drivers/usb/otg/twl6030-usb.c b/drivers/usb/otg/twl6030-usb.c index d2a9a8e691b9..0eabb049b6a9 100644 --- a/drivers/usb/otg/twl6030-usb.c +++ b/drivers/usb/otg/twl6030-usb.c @@ -305,9 +305,8 @@ static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl) regulator_enable(twl->usb3v3); twl->asleep = 1; - twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_EN_HI_CLR, 0x1); - twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_EN_HI_SET, - 0x10); + twl6030_writeb(twl, TWL_MODULE_USB, 0x1, USB_ID_INT_EN_HI_CLR); + twl6030_writeb(twl, TWL_MODULE_USB, 0x10, USB_ID_INT_EN_HI_SET); status = USB_EVENT_ID; otg->default_a = true; twl->phy.state = OTG_STATE_A_IDLE; @@ -316,12 +315,10 @@ static irqreturn_t twl6030_usbotg_irq(int irq, void *_twl) atomic_notifier_call_chain(&twl->phy.notifier, status, otg->gadget); } else { - twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_EN_HI_CLR, - 0x10); - twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_EN_HI_SET, - 0x1); + twl6030_writeb(twl, TWL_MODULE_USB, 0x10, USB_ID_INT_EN_HI_CLR); + twl6030_writeb(twl, TWL_MODULE_USB, 0x1, USB_ID_INT_EN_HI_SET); } - twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_LATCH_CLR, status); + twl6030_writeb(twl, TWL_MODULE_USB, status, USB_ID_INT_LATCH_CLR); return IRQ_HANDLED; } @@ -343,7 +340,7 @@ static int twl6030_enable_irq(struct usb_phy *x) { struct twl6030_usb *twl = phy_to_twl(x); - twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_EN_HI_SET, 0x1); + twl6030_writeb(twl, TWL_MODULE_USB, 0x1, USB_ID_INT_EN_HI_SET); twl6030_interrupt_unmask(0x05, REG_INT_MSK_LINE_C); twl6030_interrupt_unmask(0x05, REG_INT_MSK_STS_C); -- cgit v1.2.3-59-g8ed1b From d7dbdb5e5fe809aa3d4c33b33943c94321dfdd06 Mon Sep 17 00:00:00 2001 From: Alexandre Pereira da Silva Date: Wed, 20 Jun 2012 09:37:57 -0300 Subject: usb: gadget: lpc32xx_udc: fix build error with debugfs enabled If CONFIG_USB_GADGET_DEBUG_FILES is enabled, lpc32xx_udc breaks compilation because of a missing include file. Signed-off-by: Alexandre Pereira da Silva Signed-off-by: Felipe Balbi --- drivers/usb/gadget/lpc32xx_udc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/usb/gadget/lpc32xx_udc.c b/drivers/usb/gadget/lpc32xx_udc.c index 262acfd53e32..2ab0388d93eb 100644 --- a/drivers/usb/gadget/lpc32xx_udc.c +++ b/drivers/usb/gadget/lpc32xx_udc.c @@ -61,6 +61,7 @@ #include #include #ifdef CONFIG_USB_GADGET_DEBUG_FILES +#include #include #endif -- cgit v1.2.3-59-g8ed1b From 8c778db9f01a1b6c785890b5fd83c7addfd3eb3a Mon Sep 17 00:00:00 2001 From: Ajay Kumar Gupta Date: Thu, 21 Jun 2012 17:18:12 +0530 Subject: usb: musb: host: release dma channels if no active io Currently DMA channels are allocated and they remain allocated even if there is no active data transfer. Added channel_release() whenever there is no pending request. Signed-off-by: Ajay Kumar Gupta Signed-off-by: Felipe Balbi --- drivers/usb/musb/musb_host.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index ef8d744800ac..e090c799d87b 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -375,11 +375,21 @@ static void musb_advance_schedule(struct musb *musb, struct urb *urb, */ if (list_empty(&qh->hep->urb_list)) { struct list_head *head; + struct dma_controller *dma = musb->dma_controller; - if (is_in) + if (is_in) { ep->rx_reinit = 1; - else + if (ep->rx_channel) { + dma->channel_release(ep->rx_channel); + ep->rx_channel = NULL; + } + } else { ep->tx_reinit = 1; + if (ep->tx_channel) { + dma->channel_release(ep->tx_channel); + ep->tx_channel = NULL; + } + } /* Clobber old pointers to this qh */ musb_ep_set_qh(ep, is_in, NULL); -- cgit v1.2.3-59-g8ed1b From 925839243dc9aa4ef25305f5afd10ed18258a4ac Mon Sep 17 00:00:00 2001 From: Stone Piao Date: Wed, 20 Jun 2012 20:21:10 -0700 Subject: mwifiex: fix 11n rx packet drop issue Currently we check the sequence number of last packet received against start_win. If a sequence hole is detected, start_win is updated to next sequence number. Since the rx sequence number is initialized to 0, a corner case exists when BA setup happens immediately after association. As 0 is a valid sequence number, start_win gets increased to 1 incorrectly. This causes the first packet with sequence number 0 being dropped. Initialize rx sequence number as 0xffff and skip adjusting start_win if the sequence number remains 0xffff. The sequence number will be updated once the first packet is received. Cc: "3.0.y, 3.1.y, 3.2.y, 3.3.y, 3.4.y" Signed-off-by: Stone Piao Signed-off-by: Avinash Patil Signed-off-by: Kiran Divekar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/11n_rxreorder.c | 5 +++-- drivers/net/wireless/mwifiex/11n_rxreorder.h | 7 +++++++ drivers/net/wireless/mwifiex/wmm.c | 2 ++ 3 files changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/mwifiex/11n_rxreorder.c b/drivers/net/wireless/mwifiex/11n_rxreorder.c index 9c44088054dd..900ee129e825 100644 --- a/drivers/net/wireless/mwifiex/11n_rxreorder.c +++ b/drivers/net/wireless/mwifiex/11n_rxreorder.c @@ -256,7 +256,8 @@ mwifiex_11n_create_rx_reorder_tbl(struct mwifiex_private *priv, u8 *ta, else last_seq = priv->rx_seq[tid]; - if (last_seq >= new_node->start_win) + if (last_seq != MWIFIEX_DEF_11N_RX_SEQ_NUM && + last_seq >= new_node->start_win) new_node->start_win = last_seq + 1; new_node->win_size = win_size; @@ -596,5 +597,5 @@ void mwifiex_11n_cleanup_reorder_tbl(struct mwifiex_private *priv) spin_unlock_irqrestore(&priv->rx_reorder_tbl_lock, flags); INIT_LIST_HEAD(&priv->rx_reorder_tbl_ptr); - memset(priv->rx_seq, 0, sizeof(priv->rx_seq)); + mwifiex_reset_11n_rx_seq_num(priv); } diff --git a/drivers/net/wireless/mwifiex/11n_rxreorder.h b/drivers/net/wireless/mwifiex/11n_rxreorder.h index f1bffebabc60..6c9815a0f5d8 100644 --- a/drivers/net/wireless/mwifiex/11n_rxreorder.h +++ b/drivers/net/wireless/mwifiex/11n_rxreorder.h @@ -37,6 +37,13 @@ #define ADDBA_RSP_STATUS_ACCEPT 0 +#define MWIFIEX_DEF_11N_RX_SEQ_NUM 0xffff + +static inline void mwifiex_reset_11n_rx_seq_num(struct mwifiex_private *priv) +{ + memset(priv->rx_seq, 0xff, sizeof(priv->rx_seq)); +} + int mwifiex_11n_rx_reorder_pkt(struct mwifiex_private *, u16 seqNum, u16 tid, u8 *ta, diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c index f3fc65515857..8c2b5c0aa754 100644 --- a/drivers/net/wireless/mwifiex/wmm.c +++ b/drivers/net/wireless/mwifiex/wmm.c @@ -404,6 +404,8 @@ mwifiex_wmm_init(struct mwifiex_adapter *adapter) priv->add_ba_param.tx_win_size = MWIFIEX_AMPDU_DEF_TXWINSIZE; priv->add_ba_param.rx_win_size = MWIFIEX_AMPDU_DEF_RXWINSIZE; + mwifiex_reset_11n_rx_seq_num(priv); + atomic_set(&priv->wmm.tx_pkts_queued, 0); atomic_set(&priv->wmm.highest_queued_prio, HIGH_PRIO_TID); } -- cgit v1.2.3-59-g8ed1b From f03ba7e9a24e5e9efaad56bd1713b994ea556b16 Mon Sep 17 00:00:00 2001 From: Stone Piao Date: Wed, 20 Jun 2012 20:21:11 -0700 Subject: mwifiex: fix WPS eapol handshake failure After association, STA will go through eapol handshake with WPS enabled AP. It's observed that WPS handshake fails with some 11n AP. The reason for the failure is that the eapol packet is sent via 11n frame aggregation. The eapol packet should be sent directly without 11n aggregation. This patch fixes the problem by adding WPS session control while dequeuing Tx packets for transmission. Cc: "3.4.y" Signed-off-by: Stone Piao Signed-off-by: Avinash Patil Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/wmm.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/mwifiex/wmm.c b/drivers/net/wireless/mwifiex/wmm.c index 8c2b5c0aa754..3fa4d4176993 100644 --- a/drivers/net/wireless/mwifiex/wmm.c +++ b/drivers/net/wireless/mwifiex/wmm.c @@ -1223,6 +1223,7 @@ mwifiex_dequeue_tx_packet(struct mwifiex_adapter *adapter) if (!ptr->is_11n_enabled || mwifiex_is_ba_stream_setup(priv, ptr, tid) || + priv->wps.session_enable || ((priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled) && !priv->wpa_is_gtk_set)) { -- cgit v1.2.3-59-g8ed1b From e80c81dc1416e326482c601af3a19d0f9989638e Mon Sep 17 00:00:00 2001 From: Amitkumar Karwar Date: Wed, 20 Jun 2012 20:21:12 -0700 Subject: mwifiex: fix bugs in event handling code This patch ensures uniformity in event skb sent by interface code (USB/PCIe/SDIO) which automatically fixes following bugs. 1) For USB interface, same buffer is reused for receiving cmd and events from firmware. While handling events, we perform skb_pull(skb, 4) to remove event header. Corresponding skb_push() call is missing while submitting the buffer. 2) For PCIe interface, event skb is passed with event header. Recently added uAP events EVENT_UAP_STA_ASSOC, EVENT_UAP_STA_DEAUTH will not work for PCIe, as they assume event skb points to event body. Signed-off-by: Amitkumar Karwar Signed-off-by: Kiran Divekar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/sdio.c | 6 +++--- drivers/net/wireless/mwifiex/sta_event.c | 9 ++++----- drivers/net/wireless/mwifiex/usb.c | 6 +++--- 3 files changed, 10 insertions(+), 11 deletions(-) diff --git a/drivers/net/wireless/mwifiex/sdio.c b/drivers/net/wireless/mwifiex/sdio.c index e0377473282f..fc8a9bfa1248 100644 --- a/drivers/net/wireless/mwifiex/sdio.c +++ b/drivers/net/wireless/mwifiex/sdio.c @@ -978,10 +978,10 @@ static int mwifiex_decode_rx_packet(struct mwifiex_adapter *adapter, dev_dbg(adapter->dev, "info: --- Rx: Event ---\n"); adapter->event_cause = *(u32 *) skb->data; - skb_pull(skb, MWIFIEX_EVENT_HEADER_LEN); - if ((skb->len > 0) && (skb->len < MAX_EVENT_SIZE)) - memcpy(adapter->event_body, skb->data, skb->len); + memcpy(adapter->event_body, + skb->data + MWIFIEX_EVENT_HEADER_LEN, + skb->len); /* event cause has been saved to adapter->event_cause */ adapter->event_received = true; diff --git a/drivers/net/wireless/mwifiex/sta_event.c b/drivers/net/wireless/mwifiex/sta_event.c index 4ace5a3dcd23..11e731f3581c 100644 --- a/drivers/net/wireless/mwifiex/sta_event.c +++ b/drivers/net/wireless/mwifiex/sta_event.c @@ -406,9 +406,9 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv) break; case EVENT_UAP_STA_ASSOC: - skb_pull(adapter->event_skb, MWIFIEX_UAP_EVENT_EXTRA_HEADER); memset(&sinfo, 0, sizeof(sinfo)); - event = (struct mwifiex_assoc_event *)adapter->event_skb->data; + event = (struct mwifiex_assoc_event *) + (adapter->event_body + MWIFIEX_UAP_EVENT_EXTRA_HEADER); if (le16_to_cpu(event->type) == TLV_TYPE_UAP_MGMT_FRAME) { len = -1; @@ -433,9 +433,8 @@ int mwifiex_process_sta_event(struct mwifiex_private *priv) GFP_KERNEL); break; case EVENT_UAP_STA_DEAUTH: - skb_pull(adapter->event_skb, MWIFIEX_UAP_EVENT_EXTRA_HEADER); - cfg80211_del_sta(priv->netdev, adapter->event_skb->data, - GFP_KERNEL); + cfg80211_del_sta(priv->netdev, adapter->event_body + + MWIFIEX_UAP_EVENT_EXTRA_HEADER, GFP_KERNEL); break; case EVENT_UAP_BSS_IDLE: priv->media_connected = false; diff --git a/drivers/net/wireless/mwifiex/usb.c b/drivers/net/wireless/mwifiex/usb.c index 49ebf20c56eb..e6d796fabab5 100644 --- a/drivers/net/wireless/mwifiex/usb.c +++ b/drivers/net/wireless/mwifiex/usb.c @@ -91,7 +91,6 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, } skb_copy_from_linear_data(skb, &tmp, sizeof(u32)); adapter->event_cause = le32_to_cpu(tmp); - skb_pull(skb, sizeof(u32)); dev_dbg(dev, "event_cause %#x\n", adapter->event_cause); if (skb->len > MAX_EVENT_SIZE) { @@ -99,8 +98,9 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, return -1; } - skb_copy_from_linear_data(skb, adapter->event_body, - skb->len); + memcpy(adapter->event_body, skb->data + + MWIFIEX_EVENT_HEADER_LEN, skb->len); + adapter->event_received = true; adapter->event_skb = skb; break; -- cgit v1.2.3-59-g8ed1b From 8311f0da95d483ceb76bafae6e0a8c90531fb577 Mon Sep 17 00:00:00 2001 From: Amitkumar Karwar Date: Wed, 20 Jun 2012 20:21:13 -0700 Subject: mwifiex: improve error path handling in usb.c skb allocated during initialisation is reused for receiving commands/events by USB interface. We miss to reset skb->data in failure cases. This patch takes care of it. Signed-off-by: Amitkumar Karwar Signed-off-by: Kiran Divekar Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/usb.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/mwifiex/usb.c b/drivers/net/wireless/mwifiex/usb.c index e6d796fabab5..22a5916564b8 100644 --- a/drivers/net/wireless/mwifiex/usb.c +++ b/drivers/net/wireless/mwifiex/usb.c @@ -49,6 +49,7 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, struct device *dev = adapter->dev; u32 recv_type; __le32 tmp; + int ret; if (adapter->hs_activated) mwifiex_process_hs_config(adapter); @@ -69,16 +70,19 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, case MWIFIEX_USB_TYPE_CMD: if (skb->len > MWIFIEX_SIZE_OF_CMD_BUFFER) { dev_err(dev, "CMD: skb->len too large\n"); - return -1; + ret = -1; + goto exit_restore_skb; } else if (!adapter->curr_cmd) { dev_dbg(dev, "CMD: no curr_cmd\n"); if (adapter->ps_state == PS_STATE_SLEEP_CFM) { mwifiex_process_sleep_confirm_resp( adapter, skb->data, skb->len); - return 0; + ret = 0; + goto exit_restore_skb; } - return -1; + ret = -1; + goto exit_restore_skb; } adapter->curr_cmd->resp_skb = skb; @@ -87,7 +91,8 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, case MWIFIEX_USB_TYPE_EVENT: if (skb->len < sizeof(u32)) { dev_err(dev, "EVENT: skb->len too small\n"); - return -1; + ret = -1; + goto exit_restore_skb; } skb_copy_from_linear_data(skb, &tmp, sizeof(u32)); adapter->event_cause = le32_to_cpu(tmp); @@ -95,7 +100,8 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, if (skb->len > MAX_EVENT_SIZE) { dev_err(dev, "EVENT: event body too large\n"); - return -1; + ret = -1; + goto exit_restore_skb; } memcpy(adapter->event_body, skb->data + @@ -124,6 +130,12 @@ static int mwifiex_usb_recv(struct mwifiex_adapter *adapter, } return -EINPROGRESS; + +exit_restore_skb: + /* The buffer will be reused for further cmds/events */ + skb_push(skb, INTF_HEADER_LEN); + + return ret; } static void mwifiex_usb_rx_complete(struct urb *urb) -- cgit v1.2.3-59-g8ed1b From 9973290ce20ace7cac8ad06f753468c0b826fd0f Mon Sep 17 00:00:00 2001 From: David Brown Date: Wed, 20 Jun 2012 22:52:24 +0100 Subject: ARM: 7428/1: Prevent KALLSYM size mismatch on ARM. ARM builds seem to be plagued by an occasional build error: Inconsistent kallsyms data This is a bug - please report about it Try "make KALLSYMS_EXTRA_PASS=1" as a workaround The problem has to do with alignment of some sections by the linker. The kallsyms data is built in two passes by first linking the kernel without it, and then linking the kernel again with the symbols included. Normally, this just shifts the symbols, without changing their order, and the compression used by the kallsyms gives the same result. On non SMP, the per CPU data is empty. Depending on the where the alignment ends up, it can come out as either: +-------------------+ | last text segment | +-------------------+ /* padding */ +-------------------+ <- L1_CACHE_BYTES alignemnt | per cpu (empty) | +-------------------+ __per_cpu_end: /* padding */ __data_loc: +-------------------+ <- THREAD_SIZE alignment | data | +-------------------+ or +-------------------+ | last text segment | +-------------------+ /* padding */ +-------------------+ <- L1_CACHE_BYTES alignemnt | per cpu (empty) | +-------------------+ __per_cpu_end: /* no padding */ __data_loc: +-------------------+ <- THREAD_SIZE alignment | data | +-------------------+ if the alignment satisfies both. Because symbols that have the same address are sorted by 'nm -n', the second case will be in a different order than the first case. This changes the compression, changing the size of the kallsym data, causing the build failure. The KALLSYMS_EXTRA_PASS=1 workaround usually works, but it is still possible to have the alignment change between the second and third pass. It's probably even possible for it to never reach a fixedpoint. The problem only occurs on non-SMP, when the per-cpu data is empty, and when the data segment has alignment (and immediately follows the text segments). Fix this by only including the per_cpu section on SMP, when it is not empty. Signed-off-by: David Brown Signed-off-by: Russell King --- arch/arm/kernel/vmlinux.lds.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/kernel/vmlinux.lds.S b/arch/arm/kernel/vmlinux.lds.S index 43a31fb06318..36ff15bbfdd4 100644 --- a/arch/arm/kernel/vmlinux.lds.S +++ b/arch/arm/kernel/vmlinux.lds.S @@ -183,7 +183,9 @@ SECTIONS } #endif +#ifdef CONFIG_SMP PERCPU_SECTION(L1_CACHE_BYTES) +#endif #ifdef CONFIG_XIP_KERNEL __data_loc = ALIGN(4); /* location in binary */ -- cgit v1.2.3-59-g8ed1b From 58bf8062d0b293b8e1028e5b0342082002886bd4 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Thu, 21 Jun 2012 14:55:22 +0200 Subject: drm/i915: rip out the PM_IIR WARN After banging my head against this for the past few months, I still don't see how this could possible race under the premise that once an irq bit is masked in PM_IMR and reset in PM_IIR it won't show up again until we unmask it in PM_IMR. Still, we have reports of this being seen in the wild. Now Bspec has this little bit of lovely language in the PMIIR register: Public SNB Docs, Vol3Part2, 2.5.14 "PMIIR": "For each bit, the IIR can store a second pending interrupt if two or more of the same interrupt conditions occur before the first condition is cleared. Upon clearing the interrupt, the IIR bit will momentarily go low, then return high to indicate there is another interrupt pending." Now if we presume that PMIMR only prevent new interrupts from being queued, we could easily end up masking an interrupt and clearing it, but the 2nd pending interrupt setting the bit in PMIIR right away again. Which leads, the next time the irq handler runs, to hitting the WARN. Also, no bad side effects of this have ever been reported. And we've tracked down our issues with the gpu turbo getting stuck to bogus interrupt generation limits in th RPLIMIT register. So let's just rip out this WARN as bogus and call it a day. The only shallow thing here is that this 2-deep irq queue in the hw makes you wonder how racy the windows irq handler is ... Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=42907 Cc: stable@vger.kernel.org Acked-by: Chris Wilson Signed-Off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_irq.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index b1fe0edda955..ed3224c37423 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -412,7 +412,6 @@ static void gen6_queue_rps_work(struct drm_i915_private *dev_priv, */ spin_lock_irqsave(&dev_priv->rps_lock, flags); - WARN(dev_priv->pm_iir & pm_iir, "Missed a PM interrupt\n"); dev_priv->pm_iir |= pm_iir; I915_WRITE(GEN6_PMIMR, dev_priv->pm_iir); POSTING_READ(GEN6_PMIMR); -- cgit v1.2.3-59-g8ed1b From 6db65cbb941f9d433659bdad02b307f6d94465df Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Thu, 21 Jun 2012 15:30:41 +0200 Subject: drm/i915: Fix eDP blank screen after S3 resume on HP desktops This patch fixes the problem on some HP desktop machines with eDP which give blank screens after S3 resume. It turned out that BLC_PWM_CPU_CTL must be written after BLC_PWM_CPU_CTL2. Otherwise it doesn't take effect on these SNB machines. Tested with 3.5-rc3 kernel. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=49233 Cc: Signed-off-by: Takashi Iwai Signed-off-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_suspend.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_suspend.c b/drivers/gpu/drm/i915/i915_suspend.c index 0ede02a99d91..a748e5cabe14 100644 --- a/drivers/gpu/drm/i915/i915_suspend.c +++ b/drivers/gpu/drm/i915/i915_suspend.c @@ -740,8 +740,11 @@ static void i915_restore_display(struct drm_device *dev) if (HAS_PCH_SPLIT(dev)) { I915_WRITE(BLC_PWM_PCH_CTL1, dev_priv->saveBLC_PWM_CTL); I915_WRITE(BLC_PWM_PCH_CTL2, dev_priv->saveBLC_PWM_CTL2); - I915_WRITE(BLC_PWM_CPU_CTL, dev_priv->saveBLC_CPU_PWM_CTL); + /* NOTE: BLC_PWM_CPU_CTL must be written after BLC_PWM_CPU_CTL2; + * otherwise we get blank eDP screen after S3 on some machines + */ I915_WRITE(BLC_PWM_CPU_CTL2, dev_priv->saveBLC_CPU_PWM_CTL2); + I915_WRITE(BLC_PWM_CPU_CTL, dev_priv->saveBLC_CPU_PWM_CTL); I915_WRITE(PCH_PP_ON_DELAYS, dev_priv->savePP_ON_DELAYS); I915_WRITE(PCH_PP_OFF_DELAYS, dev_priv->savePP_OFF_DELAYS); I915_WRITE(PCH_PP_DIVISOR, dev_priv->savePP_DIVISOR); -- cgit v1.2.3-59-g8ed1b From 86f887c105b909a2cea7b06f2136d66b3438b038 Mon Sep 17 00:00:00 2001 From: Phil Edworthy Date: Sat, 23 Jun 2012 01:12:09 +0200 Subject: ARM: shmobile: r8a7779: Route all interrupts to ARM Without this, the interrupts for I2C, VIN, GPIO, SDHC, HSCIF and HPB-DMAC are sent to the SH processor. Signed-off-by: Phil Edworthy Acked-by: Magnus Damm Signed-off-by: Rafael J. Wysocki --- arch/arm/mach-shmobile/intc-r8a7779.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm/mach-shmobile/intc-r8a7779.c b/arch/arm/mach-shmobile/intc-r8a7779.c index 550b23df4fd4..f04fad4ec4fb 100644 --- a/arch/arm/mach-shmobile/intc-r8a7779.c +++ b/arch/arm/mach-shmobile/intc-r8a7779.c @@ -35,6 +35,9 @@ #define INT2SMSKCR3 0xfe7822ac #define INT2SMSKCR4 0xfe7822b0 +#define INT2NTSR0 0xfe700060 +#define INT2NTSR1 0xfe700064 + static int r8a7779_set_wake(struct irq_data *data, unsigned int on) { return 0; /* always allow wakeup */ @@ -49,6 +52,10 @@ void __init r8a7779_init_irq(void) gic_init(0, 29, gic_dist_base, gic_cpu_base); gic_arch_extn.irq_set_wake = r8a7779_set_wake; + /* route all interrupts to ARM */ + __raw_writel(0xffffffff, INT2NTSR0); + __raw_writel(0x3fffffff, INT2NTSR1); + /* unmask all known interrupts in INTCS2 */ __raw_writel(0xfffffff0, INT2SMSKCR0); __raw_writel(0xfff7ffff, INT2SMSKCR1); -- cgit v1.2.3-59-g8ed1b From b9f90eb2740203ff2592efe640409ad48335d1c2 Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Thu, 21 Jun 2012 02:45:58 +0000 Subject: net: qmi_wwan: fix Gobi device probing MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Ignoring interfaces with additional descriptors is not a reliable method for locating the correct interface on Gobi devices. There is at least one device where this method fails: https://bbs.archlinux.org/viewtopic.php?id=143506 The result is that the AT command port (interface #2) is hidden from qcserial, preventing traditional serial modem usage: [ 15.562552] qmi_wwan 4-1.6:1.0: cdc-wdm0: USB WDM device [ 15.562691] qmi_wwan 4-1.6:1.0: wwan0: register 'qmi_wwan' at usb-0000:00:1d.0-1.6, Qualcomm Gobi wwan/QMI device, 1e:df:3c:3a:4e:3b [ 15.563383] qmi_wwan: probe of 4-1.6:1.1 failed with error -22 [ 15.564189] qmi_wwan 4-1.6:1.2: cdc-wdm1: USB WDM device [ 15.564302] qmi_wwan 4-1.6:1.2: wwan1: register 'qmi_wwan' at usb-0000:00:1d.0-1.6, Qualcomm Gobi wwan/QMI device, 1e:df:3c:3a:4e:3b [ 15.564328] qmi_wwan: probe of 4-1.6:1.3 failed with error -22 [ 15.569376] qcserial 4-1.6:1.1: Qualcomm USB modem converter detected [ 15.569440] usb 4-1.6: Qualcomm USB modem converter now attached to ttyUSB0 [ 15.570372] qcserial 4-1.6:1.3: Qualcomm USB modem converter detected [ 15.570430] usb 4-1.6: Qualcomm USB modem converter now attached to ttyUSB1 Use static interface numbers taken from the interface map in qcserial for all Gobi devices instead: Gobi 1K USB layout: 0: serial port (doesn't respond) 1: serial port (doesn't respond) 2: AT-capable modem port 3: QMI/net Gobi 2K+ USB layout: 0: QMI/net 1: DM/DIAG (use libqcdm from ModemManager for communication) 2: AT-capable modem port 3: NMEA This should be more reliable over all, and will also prevent the noisy "probe failed" messages. The whitelisting logic is expected to be replaced by direct interface number matching in 3.6. Reported-by: Heinrich Siebmanns (Harvey) Cc: # v3.4: 0000188 USB: qmi_wwan: Make forced int 4 whitelist generic Cc: # v3.4: f7142e6 USB: qmi_wwan: Add ZTE (Vodafone) K3520-Z Cc: # v3.4 Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/qmi_wwan.c | 83 ++++++++++++++++++++++------------------------ 1 file changed, 40 insertions(+), 43 deletions(-) diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 3b206786b5e7..3767a1225860 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -257,29 +257,6 @@ err: return rv; } -/* Gobi devices uses identical class/protocol codes for all interfaces regardless - * of function. Some of these are CDC ACM like and have the exact same endpoints - * we are looking for. This leaves two possible strategies for identifying the - * correct interface: - * a) hardcoding interface number, or - * b) use the fact that the wwan interface is the only one lacking additional - * (CDC functional) descriptors - * - * Let's see if we can get away with the generic b) solution. - */ -static int qmi_wwan_bind_gobi(struct usbnet *dev, struct usb_interface *intf) -{ - int rv = -EINVAL; - - /* ignore any interface with additional descriptors */ - if (intf->cur_altsetting->extralen) - goto err; - - rv = qmi_wwan_bind_shared(dev, intf); -err: - return rv; -} - static void qmi_wwan_unbind_shared(struct usbnet *dev, struct usb_interface *intf) { struct usb_driver *subdriver = (void *)dev->data[0]; @@ -347,15 +324,15 @@ static const struct driver_info qmi_wwan_shared = { .manage_power = qmi_wwan_manage_power, }; -static const struct driver_info qmi_wwan_gobi = { - .description = "Qualcomm Gobi wwan/QMI device", +static const struct driver_info qmi_wwan_force_int0 = { + .description = "Qualcomm WWAN/QMI device", .flags = FLAG_WWAN, - .bind = qmi_wwan_bind_gobi, + .bind = qmi_wwan_bind_shared, .unbind = qmi_wwan_unbind_shared, .manage_power = qmi_wwan_manage_power, + .data = BIT(0), /* interface whitelist bitmap */ }; -/* ZTE suck at making USB descriptors */ static const struct driver_info qmi_wwan_force_int1 = { .description = "Qualcomm WWAN/QMI device", .flags = FLAG_WWAN, @@ -365,6 +342,15 @@ static const struct driver_info qmi_wwan_force_int1 = { .data = BIT(1), /* interface whitelist bitmap */ }; +static const struct driver_info qmi_wwan_force_int3 = { + .description = "Qualcomm WWAN/QMI device", + .flags = FLAG_WWAN, + .bind = qmi_wwan_bind_shared, + .unbind = qmi_wwan_unbind_shared, + .manage_power = qmi_wwan_manage_power, + .data = BIT(3), /* interface whitelist bitmap */ +}; + static const struct driver_info qmi_wwan_force_int4 = { .description = "Qualcomm WWAN/QMI device", .flags = FLAG_WWAN, @@ -390,16 +376,23 @@ static const struct driver_info qmi_wwan_force_int4 = { static const struct driver_info qmi_wwan_sierra = { .description = "Sierra Wireless wwan/QMI device", .flags = FLAG_WWAN, - .bind = qmi_wwan_bind_gobi, + .bind = qmi_wwan_bind_shared, .unbind = qmi_wwan_unbind_shared, .manage_power = qmi_wwan_manage_power, .data = BIT(8) | BIT(19), /* interface whitelist bitmap */ }; #define HUAWEI_VENDOR_ID 0x12D1 + +/* Gobi 1000 QMI/wwan interface number is 3 according to qcserial */ +#define QMI_GOBI1K_DEVICE(vend, prod) \ + USB_DEVICE(vend, prod), \ + .driver_info = (unsigned long)&qmi_wwan_force_int3 + +/* Gobi 2000 and Gobi 3000 QMI/wwan interface number is 0 according to qcserial */ #define QMI_GOBI_DEVICE(vend, prod) \ USB_DEVICE(vend, prod), \ - .driver_info = (unsigned long)&qmi_wwan_gobi + .driver_info = (unsigned long)&qmi_wwan_force_int0 static const struct usb_device_id products[] = { { /* Huawei E392, E398 and possibly others sharing both device id and more... */ @@ -510,20 +503,24 @@ static const struct usb_device_id products[] = { .bInterfaceProtocol = 0xff, .driver_info = (unsigned long)&qmi_wwan_sierra, }, - {QMI_GOBI_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ - {QMI_GOBI_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */ - {QMI_GOBI_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Mobile Broadband Module */ - {QMI_GOBI_DEVICE(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */ - {QMI_GOBI_DEVICE(0x413c, 0x8172)}, /* Dell Gobi Modem device */ - {QMI_GOBI_DEVICE(0x1410, 0xa001)}, /* Novatel Gobi Modem device */ - {QMI_GOBI_DEVICE(0x0b05, 0x1776)}, /* Asus Gobi Modem device */ - {QMI_GOBI_DEVICE(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */ - {QMI_GOBI_DEVICE(0x05c6, 0x9001)}, /* Generic Gobi Modem device */ - {QMI_GOBI_DEVICE(0x05c6, 0x9002)}, /* Generic Gobi Modem device */ - {QMI_GOBI_DEVICE(0x05c6, 0x9202)}, /* Generic Gobi Modem device */ - {QMI_GOBI_DEVICE(0x05c6, 0x9203)}, /* Generic Gobi Modem device */ - {QMI_GOBI_DEVICE(0x05c6, 0x9222)}, /* Generic Gobi Modem device */ - {QMI_GOBI_DEVICE(0x05c6, 0x9009)}, /* Generic Gobi Modem device */ + + /* Gobi 1000 devices */ + {QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */ + {QMI_GOBI1K_DEVICE(0x03f0, 0x1f1d)}, /* HP un2400 Gobi Modem Device */ + {QMI_GOBI1K_DEVICE(0x03f0, 0x371d)}, /* HP un2430 Mobile Broadband Module */ + {QMI_GOBI1K_DEVICE(0x04da, 0x250d)}, /* Panasonic Gobi Modem device */ + {QMI_GOBI1K_DEVICE(0x413c, 0x8172)}, /* Dell Gobi Modem device */ + {QMI_GOBI1K_DEVICE(0x1410, 0xa001)}, /* Novatel Gobi Modem device */ + {QMI_GOBI1K_DEVICE(0x0b05, 0x1776)}, /* Asus Gobi Modem device */ + {QMI_GOBI1K_DEVICE(0x19d2, 0xfff3)}, /* ONDA Gobi Modem device */ + {QMI_GOBI1K_DEVICE(0x05c6, 0x9001)}, /* Generic Gobi Modem device */ + {QMI_GOBI1K_DEVICE(0x05c6, 0x9002)}, /* Generic Gobi Modem device */ + {QMI_GOBI1K_DEVICE(0x05c6, 0x9202)}, /* Generic Gobi Modem device */ + {QMI_GOBI1K_DEVICE(0x05c6, 0x9203)}, /* Generic Gobi Modem device */ + {QMI_GOBI1K_DEVICE(0x05c6, 0x9222)}, /* Generic Gobi Modem device */ + {QMI_GOBI1K_DEVICE(0x05c6, 0x9009)}, /* Generic Gobi Modem device */ + + /* Gobi 2000 and 3000 devices */ {QMI_GOBI_DEVICE(0x413c, 0x8186)}, /* Dell Gobi 2000 Modem device (N0218, VU936) */ {QMI_GOBI_DEVICE(0x05c6, 0x920b)}, /* Generic Gobi 2000 Modem device */ {QMI_GOBI_DEVICE(0x05c6, 0x9225)}, /* Sony Gobi 2000 Modem device (N0279, VU730) */ -- cgit v1.2.3-59-g8ed1b From fb13c47b8e5ce707268bd38cfd082da377eac4b7 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 19 Jun 2012 21:15:51 +0000 Subject: usbnet: clear OPEN flag in failure path Without clearing OPEN flag in failure path, runtime or system resume may submit interrupt/rx URB and start tx queue mistakenly on a interface in DOWN state. Signed-off-by: Ming Lei Acked-by: Oliver Neukum Signed-off-by: David S. Miller --- drivers/net/usb/usbnet.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index d4f7256a607d..815493caea7f 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -796,11 +796,13 @@ int usbnet_open (struct net_device *net) if (info->manage_power) { retval = info->manage_power(dev, 1); if (retval < 0) - goto done; + goto done_manage_power_error; usb_autopm_put_interface(dev->intf); } return retval; +done_manage_power_error: + clear_bit(EVENT_DEV_OPEN, &dev->flags); done: usb_autopm_put_interface(dev->intf); done_nopm: -- cgit v1.2.3-59-g8ed1b From 5eeb3132eb4c5e9ca92e5247fe4575fe9f8c3efe Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 19 Jun 2012 21:15:52 +0000 Subject: usbnet: decrease suspend count if returning -EBUSY for runtime suspend This patch decreases dev->suspend_count in the -EBUSY failure path of usbnet_suspend. Without the change, the later runtime suspend will do nothing except for increasing dev->suspend_count. Signed-off-by: Ming Lei Acked-by: Oliver Neukum Signed-off-by: David S. Miller --- drivers/net/usb/usbnet.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 815493caea7f..1e46f693eb47 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1515,6 +1515,7 @@ int usbnet_suspend (struct usb_interface *intf, pm_message_t message) spin_lock_irq(&dev->txq.lock); /* don't autosuspend while transmitting */ if (dev->txq.qlen && PMSG_IS_AUTO(message)) { + dev->suspend_count--; spin_unlock_irq(&dev->txq.lock); return -EBUSY; } else { -- cgit v1.2.3-59-g8ed1b From 65841fd5132c3941cdf5df09e70df3ed28323212 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Tue, 19 Jun 2012 21:15:53 +0000 Subject: usbnet: handle remote wakeup asap If usbnet is resumed by remote wakeup, generally there are some packets comming to be handled, so allocate and submit rx URBs in usbnet_resume to avoid delays introduced by tasklet. Otherwise, usbnet may have been runtime suspended before the usbnet_bh is executed to schedule Rx URBs. Without the patch, usbnet can't recieve any packets from peer in runtime suspend state if runtime PM is enabled and autosuspend_delay is set as zero. Signed-off-by: Ming Lei Acked-by: Oliver Neukum Signed-off-by: David S. Miller --- drivers/net/usb/usbnet.c | 42 ++++++++++++++++++++++++++---------------- 1 file changed, 26 insertions(+), 16 deletions(-) diff --git a/drivers/net/usb/usbnet.c b/drivers/net/usb/usbnet.c index 1e46f693eb47..aba769d77459 100644 --- a/drivers/net/usb/usbnet.c +++ b/drivers/net/usb/usbnet.c @@ -1204,6 +1204,21 @@ deferred: } EXPORT_SYMBOL_GPL(usbnet_start_xmit); +static void rx_alloc_submit(struct usbnet *dev, gfp_t flags) +{ + struct urb *urb; + int i; + + /* don't refill the queue all at once */ + for (i = 0; i < 10 && dev->rxq.qlen < RX_QLEN(dev); i++) { + urb = usb_alloc_urb(0, flags); + if (urb != NULL) { + if (rx_submit(dev, urb, flags) == -ENOLINK) + return; + } + } +} + /*-------------------------------------------------------------------------*/ // tasklet (work deferred from completions, in_irq) or timer @@ -1243,26 +1258,14 @@ static void usbnet_bh (unsigned long param) !timer_pending (&dev->delay) && !test_bit (EVENT_RX_HALT, &dev->flags)) { int temp = dev->rxq.qlen; - int qlen = RX_QLEN (dev); - - if (temp < qlen) { - struct urb *urb; - int i; - - // don't refill the queue all at once - for (i = 0; i < 10 && dev->rxq.qlen < qlen; i++) { - urb = usb_alloc_urb (0, GFP_ATOMIC); - if (urb != NULL) { - if (rx_submit (dev, urb, GFP_ATOMIC) == - -ENOLINK) - return; - } - } + + if (temp < RX_QLEN(dev)) { + rx_alloc_submit(dev, GFP_ATOMIC); if (temp != dev->rxq.qlen) netif_dbg(dev, link, dev->net, "rxqlen %d --> %d\n", temp, dev->rxq.qlen); - if (dev->rxq.qlen < qlen) + if (dev->rxq.qlen < RX_QLEN(dev)) tasklet_schedule (&dev->bh); } if (dev->txq.qlen < TX_QLEN (dev)) @@ -1572,6 +1575,13 @@ int usbnet_resume (struct usb_interface *intf) spin_unlock_irq(&dev->txq.lock); if (test_bit(EVENT_DEV_OPEN, &dev->flags)) { + /* handle remote wakeup ASAP */ + if (!dev->wait && + netif_device_present(dev->net) && + !timer_pending(&dev->delay) && + !test_bit(EVENT_RX_HALT, &dev->flags)) + rx_alloc_submit(dev, GFP_KERNEL); + if (!(dev->txq.qlen >= TX_QLEN(dev))) netif_tx_wake_all_queues(dev->net); tasklet_schedule (&dev->bh); -- cgit v1.2.3-59-g8ed1b From eb2dc35d99028b698cdedba4f5522bc43e576bd2 Mon Sep 17 00:00:00 2001 From: françois romieu Date: Wed, 20 Jun 2012 12:09:18 +0000 Subject: r8169: RxConfig hack for the 8168evl. The 8168evl (RTL_GIGA_MAC_VER_34) based Gigabyte GA-990FXA motherboards are very prone to NETDEV watchdog problems without this change. See https://bugzilla.kernel.org/show_bug.cgi?id=42899 for instance. I don't know why it *works*. It's depressingly effective though. For the record: - the problem may go along IOMMU (AMD-Vi) errors but it really looks like a red herring. - the patch sets the RX_MULTI_EN bit. If the 8168c doc is any guide, the chipset now fetches several Rx descriptors at a time. - long ago the driver ignored the RX_MULTI_EN bit. e542a2269f232d61270ceddd42b73a4348dee2bb changed the RxConfig settings. Whatever the problem it's now labeled a regression. - Realtek's own driver can identify two different 8168evl devices (CFG_METHOD_16 and CFG_METHOD_17) where the r8169 driver only sees one. It sucks. Signed-off-by: Francois Romieu Signed-off-by: David S. Miller --- drivers/net/ethernet/realtek/r8169.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/realtek/r8169.c b/drivers/net/ethernet/realtek/r8169.c index 7260aa79466a..d7a04e091101 100644 --- a/drivers/net/ethernet/realtek/r8169.c +++ b/drivers/net/ethernet/realtek/r8169.c @@ -3894,6 +3894,7 @@ static void rtl_init_rxcfg(struct rtl8169_private *tp) case RTL_GIGA_MAC_VER_22: case RTL_GIGA_MAC_VER_23: case RTL_GIGA_MAC_VER_24: + case RTL_GIGA_MAC_VER_34: RTL_W32(RxConfig, RX128_INT_EN | RX_MULTI_EN | RX_DMA_BURST); break; default: -- cgit v1.2.3-59-g8ed1b From a18e08bdcf845efb7344cea146e683df746bbfb4 Mon Sep 17 00:00:00 2001 From: Yoshihiro Shimoda Date: Wed, 20 Jun 2012 15:26:34 +0000 Subject: net: sh_eth: fix the condition to fix the cur_tx/dirty_rx The following commit couldn't work if the RMCR is not set to 1. "net: sh_eth: fix the rxdesc pointer when rx descriptor empty happens" commit id 79fba9f51755c704c0a7d7b7f0df10874dc0a744 If RMCR is not set, the controller will clear the EDRRR after it received a frame. In this case, the driver doesn't need to fix the value of cur_rx/dirty_rx. The driver only needs it when the controll detects receive descriptors are empty. Signed-off-by: Yoshihiro Shimoda Tested-by: Guennadi Liakhovetski Signed-off-by: David S. Miller --- drivers/net/ethernet/renesas/sh_eth.c | 12 +++++++----- 1 file changed, 7 insertions(+), 5 deletions(-) diff --git a/drivers/net/ethernet/renesas/sh_eth.c b/drivers/net/ethernet/renesas/sh_eth.c index 667169b82526..79bf09b41971 100644 --- a/drivers/net/ethernet/renesas/sh_eth.c +++ b/drivers/net/ethernet/renesas/sh_eth.c @@ -1011,7 +1011,7 @@ static int sh_eth_txfree(struct net_device *ndev) } /* Packet receive function */ -static int sh_eth_rx(struct net_device *ndev) +static int sh_eth_rx(struct net_device *ndev, u32 intr_status) { struct sh_eth_private *mdp = netdev_priv(ndev); struct sh_eth_rxdesc *rxdesc; @@ -1102,9 +1102,11 @@ static int sh_eth_rx(struct net_device *ndev) /* Restart Rx engine if stopped. */ /* If we don't need to check status, don't. -KDU */ if (!(sh_eth_read(ndev, EDRRR) & EDRRR_R)) { - /* fix the values for the next receiving */ - mdp->cur_rx = mdp->dirty_rx = (sh_eth_read(ndev, RDFAR) - - sh_eth_read(ndev, RDLAR)) >> 4; + /* fix the values for the next receiving if RDE is set */ + if (intr_status & EESR_RDE) + mdp->cur_rx = mdp->dirty_rx = + (sh_eth_read(ndev, RDFAR) - + sh_eth_read(ndev, RDLAR)) >> 4; sh_eth_write(ndev, EDRRR_R, EDRRR); } @@ -1273,7 +1275,7 @@ static irqreturn_t sh_eth_interrupt(int irq, void *netdev) EESR_RTSF | /* short frame recv */ EESR_PRE | /* PHY-LSI recv error */ EESR_CERF)){ /* recv frame CRC error */ - sh_eth_rx(ndev); + sh_eth_rx(ndev, intr_status); } /* Tx Check */ -- cgit v1.2.3-59-g8ed1b From 6a0bdffa0073857870a4ed1b4489762146359eb4 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 20 Jun 2012 16:04:19 -0400 Subject: SCSI & usb-storage: add try_rc_10_first flag Several bug reports have been received recently for USB mass-storage devices that don't handle READ CAPACITY(16) commands properly. They report bogus sizes, in some cases becoming unusable as a result. The bugs were triggered by commit 09b6b51b0b6c1b9bb61815baf205e4d74c89ff04 (SCSI & usb-storage: add flags for VPD pages and REPORT LUNS), which caused usb-storage to stop overriding the SCSI level reported by devices. By default, the sd driver will try READ CAPACITY(16) first for any device whose level is above SCSI_SPC_2. It seems likely that any device large enough to require the use of READ CAPACITY(16) (i.e., 2 TB or more) would be able to handle READ CAPACITY(10) commands properly. Indeed, I don't know of any devices that don't handle READ CAPACITY(10) properly. Therefore this patch (as1559) adds a new flag telling the sd driver to try READ CAPACITY(10) before READ CAPACITY(16), and sets this flag for every USB mass-storage device. If a device really is larger than 2 TB, sd will fall back to READ CAPACITY(16) just as it used to. This fixes Bugzilla #43391. Signed-off-by: Alan Stern Acked-by: Hans de Goede CC: "James E.J. Bottomley" CC: Matthew Dharm Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/sd.c | 2 ++ drivers/usb/storage/scsiglue.c | 6 ++++++ include/scsi/scsi_device.h | 1 + 3 files changed, 9 insertions(+) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 6f0a4c612b3b..6f72b80121a0 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -1899,6 +1899,8 @@ static int sd_try_rc16_first(struct scsi_device *sdp) { if (sdp->host->max_cmd_len < 16) return 0; + if (sdp->try_rc_10_first) + return 0; if (sdp->scsi_level > SCSI_SPC_2) return 1; if (scsi_device_protection(sdp)) diff --git a/drivers/usb/storage/scsiglue.c b/drivers/usb/storage/scsiglue.c index a324a5d21e99..11418da9bc09 100644 --- a/drivers/usb/storage/scsiglue.c +++ b/drivers/usb/storage/scsiglue.c @@ -202,6 +202,12 @@ static int slave_configure(struct scsi_device *sdev) if (us->fflags & US_FL_NO_READ_CAPACITY_16) sdev->no_read_capacity_16 = 1; + /* + * Many devices do not respond properly to READ_CAPACITY_16. + * Tell the SCSI layer to try READ_CAPACITY_10 first. + */ + sdev->try_rc_10_first = 1; + /* assume SPC3 or latter devices support sense size > 18 */ if (sdev->scsi_level > SCSI_SPC_2) us->fflags |= US_FL_SANE_SENSE; diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index 6efb2e1416e0..ba9698852321 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -151,6 +151,7 @@ struct scsi_device { SD_LAST_BUGGY_SECTORS */ unsigned no_read_disc_info:1; /* Avoid READ_DISC_INFO cmds */ unsigned no_read_capacity_16:1; /* Avoid READ_CAPACITY_16 cmds */ + unsigned try_rc_10_first:1; /* Try READ_CAPACACITY_10 first */ unsigned is_visible:1; /* is the device visible in sysfs */ DECLARE_BITMAP(supported_events, SDEV_EVT_MAXBITS); /* supported events */ -- cgit v1.2.3-59-g8ed1b From 0070513b5e005161a7a7fd9a3f48f982b41eb094 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Wed, 20 Jun 2012 16:04:30 -0400 Subject: usb-storage: revert commit afff07e61a52 (Add 090c:1000 to unusal-devs) This patch (as1560) reverts commit afff07e61a5243e14ee3f0a272a0380cd744a8a3 (usb-storage: Add 090c:1000 to unusal-devs). It is no longer needed, because usb-storage now tells the sd driver to try READ CAPACITY(10) before READ CAPACITY(16) for every USB mass-storage device. Signed-off-by: Alan Stern Acked-by: Hans de Goede CC: Matthew Dharm Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/storage/unusual_devs.h | 7 ------- 1 file changed, 7 deletions(-) diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index caf22bf5f822..1719886bb9be 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1107,13 +1107,6 @@ UNUSUAL_DEV( 0x090a, 0x1200, 0x0000, 0x9999, USB_SC_RBC, USB_PR_BULK, NULL, 0 ), -/* Feiya QDI U2 DISK, reported by Hans de Goede */ -UNUSUAL_DEV( 0x090c, 0x1000, 0x0000, 0xffff, - "Feiya", - "QDI U2 DISK", - USB_SC_DEVICE, USB_PR_DEVICE, NULL, - US_FL_NO_READ_CAPACITY_16 ), - /* aeb */ UNUSUAL_DEV( 0x090c, 0x1132, 0x0000, 0xffff, "Feiya", -- cgit v1.2.3-59-g8ed1b From a68de074613abd028b2ce63366d18db9c29e15d2 Mon Sep 17 00:00:00 2001 From: Graeme Gregory Date: Fri, 22 Jun 2012 13:36:20 +0100 Subject: regulator: palmas: fix regmap offsets for enable/disable I forgot to apply the offsets for the regmap helper functions for enable/disable on SMPS10 and the LDO regulators. This means regulators will not enable/disable correctly. Signed-off-by: Graeme Gregory Tested-by: Sebastien Guiriec Signed-off-by: Mark Brown --- drivers/regulator/palmas-regulator.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c index 9b7ca90057d5..795f75a6ac33 100644 --- a/drivers/regulator/palmas-regulator.c +++ b/drivers/regulator/palmas-regulator.c @@ -673,7 +673,9 @@ static __devinit int palmas_probe(struct platform_device *pdev) pmic->desc[id].ops = &palmas_ops_smps10; pmic->desc[id].vsel_reg = PALMAS_SMPS10_CTRL; pmic->desc[id].vsel_mask = SMPS10_VSEL; - pmic->desc[id].enable_reg = PALMAS_SMPS10_STATUS; + pmic->desc[id].enable_reg = + PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE, + PALMAS_SMPS10_STATUS); pmic->desc[id].enable_mask = SMPS10_BOOST_EN; } @@ -739,7 +741,8 @@ static __devinit int palmas_probe(struct platform_device *pdev) pmic->desc[id].type = REGULATOR_VOLTAGE; pmic->desc[id].owner = THIS_MODULE; - pmic->desc[id].enable_reg = palmas_regs_info[id].ctrl_addr; + pmic->desc[id].enable_reg = PALMAS_BASE_TO_REG(PALMAS_LDO_BASE, + palmas_regs_info[id].ctrl_addr); pmic->desc[id].enable_mask = PALMAS_LDO1_CTRL_MODE_ACTIVE; if (pdata && pdata->reg_data) -- cgit v1.2.3-59-g8ed1b From 5870adc68fc39d81089f1e80efdf64b97e5c37a1 Mon Sep 17 00:00:00 2001 From: Marek Lindner Date: Wed, 20 Jun 2012 17:16:05 +0200 Subject: batman-adv: only drop packets of known wifi clients bug introduced with 59b699cdee039d75915c354da06937102d1f9a84 If the source or destination mac address of an ethernet packet could not be found in the translation table the packet was dropped if AP isolation was turned on. This behavior would make it impossible to send broadcast packets over the mesh as the broadcast address will never enter the translation table. Signed-off-by: Marek Lindner Acked-by: Antonio Quartulli --- net/batman-adv/translation-table.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index a66c2dcd1088..660c40fe13ea 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -2031,10 +2031,10 @@ bool is_ap_isolated(struct bat_priv *bat_priv, uint8_t *src, uint8_t *dst) { struct tt_local_entry *tt_local_entry = NULL; struct tt_global_entry *tt_global_entry = NULL; - bool ret = true; + bool ret = false; if (!atomic_read(&bat_priv->ap_isolation)) - return false; + goto out; tt_local_entry = tt_local_hash_find(bat_priv, dst); if (!tt_local_entry) @@ -2044,10 +2044,10 @@ bool is_ap_isolated(struct bat_priv *bat_priv, uint8_t *src, uint8_t *dst) if (!tt_global_entry) goto out; - if (_is_ap_isolated(tt_local_entry, tt_global_entry)) + if (!_is_ap_isolated(tt_local_entry, tt_global_entry)) goto out; - ret = false; + ret = true; out: if (tt_global_entry) -- cgit v1.2.3-59-g8ed1b From 8b8e4bc0391f8abbcdb9e1c54415bcc0f4f5a2a0 Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Wed, 20 Jun 2012 14:12:56 +0200 Subject: batman-adv: fix race condition in TT full-table replacement bug introduced with cea194d90b11aff7fc289149e4c7f305fad3535a In the current TT code, when a TT_Response containing a full table is received from an originator, first the node purges all the clients for that originator in the global translation-table and then merges the newly received table. During the purging phase each client deletion is done by means of a call_rcu() invocation and at the end of this phase the global entry counter for that originator is set to 0. However the invoked rcu function decreases the global entry counter for that originator by one too and since the rcu invocation is likely to be postponed, the node will end up in first setting the counter to 0 and then decreasing it one by one for each deleted client. This bug leads to having a wrong global entry counter for the related node, say X. Then when the node with the broken counter will answer to a TT_REQUEST on behalf of node X, it will create faulty TT_RESPONSE that will generate an unrecoverable situation on the node that asked for the full table recover. The non-recoverability is given by the fact that the node with the broken counter will keep answering on behalf of X because its knowledge about X's state (ttvn + tt_crc) is correct. To solve this problem the counter is not explicitly set to 0 anymore and the counter decrement is performed right before the invocation of call_rcu(). Signed-off-by: Antonio Quartulli --- net/batman-adv/translation-table.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index 660c40fe13ea..2ab83d7fb1f8 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -141,13 +141,14 @@ static void tt_orig_list_entry_free_rcu(struct rcu_head *rcu) struct tt_orig_list_entry *orig_entry; orig_entry = container_of(rcu, struct tt_orig_list_entry, rcu); - atomic_dec(&orig_entry->orig_node->tt_size); orig_node_free_ref(orig_entry->orig_node); kfree(orig_entry); } static void tt_orig_list_entry_free_ref(struct tt_orig_list_entry *orig_entry) { + /* to avoid race conditions, immediately decrease the tt counter */ + atomic_dec(&orig_entry->orig_node->tt_size); call_rcu(&orig_entry->rcu, tt_orig_list_entry_free_rcu); } @@ -910,7 +911,6 @@ void tt_global_del_orig(struct bat_priv *bat_priv, } spin_unlock_bh(list_lock); } - atomic_set(&orig_node->tt_size, 0); orig_node->tt_initialised = false; } -- cgit v1.2.3-59-g8ed1b From b5e12229a4850ae9b19ee5252508749da8844b3c Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Fri, 22 Jun 2012 20:57:57 +0200 Subject: ARM: Orion5x - Restore parts of io.h, with rework Commit 4d5fc58dbe34b78157c05b319669bb3e064ba8bd (ARM: remove bunch of now unused mach/io.h files) removed the orion5x io.h. Unfortunately, this is still needed for the definition of IO_SPACE_LIMIT which overrides the default 64K. All Orion based systems have 1Mbyte of IO space per PCI[e] bus, and try to request_resource() this size. Orion5x has two such PCI buses. It is likely that the original, removed version, was broken. This version might be less broken. However, it has not been tested on hardware with a PCI card, let alone hardware with a PCI card with IO capabilities. Signed-off-by: Andrew Lunn Acked-by: Rob Herring Signed-off-by: Olof Johansson --- arch/arm/Kconfig | 1 + arch/arm/mach-orion5x/include/mach/io.h | 22 ++++++++++++++++++++++ 2 files changed, 23 insertions(+) create mode 100644 arch/arm/mach-orion5x/include/mach/io.h diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index b1b27525b24d..a91009c61870 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -589,6 +589,7 @@ config ARCH_ORION5X select PCI select ARCH_REQUIRE_GPIOLIB select GENERIC_CLOCKEVENTS + select NEED_MACH_IO_H select PLAT_ORION help Support for the following Marvell Orion 5x series SoCs: diff --git a/arch/arm/mach-orion5x/include/mach/io.h b/arch/arm/mach-orion5x/include/mach/io.h new file mode 100644 index 000000000000..1aa5d0a50a0b --- /dev/null +++ b/arch/arm/mach-orion5x/include/mach/io.h @@ -0,0 +1,22 @@ +/* + * arch/arm/mach-orion5x/include/mach/io.h + * + * This file is licensed under the terms of the GNU General Public + * License version 2. This program is licensed "as is" without any + * warranty of any kind, whether express or implied. + */ + +#ifndef __ASM_ARCH_IO_H +#define __ASM_ARCH_IO_H + +#include +#include + +#define IO_SPACE_LIMIT SZ_2M +static inline void __iomem *__io(unsigned long addr) +{ + return (void __iomem *)(addr + ORION5X_PCIE_IO_VIRT_BASE); +} + +#define __io(a) __io(a) +#endif -- cgit v1.2.3-59-g8ed1b From 5fb2ce119c113e5c987fa81ed89e73b2653e28e4 Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Fri, 22 Jun 2012 08:54:01 +0200 Subject: ARM: Kirkwood: clk_register_gate_fn: add fn assignment In commit: 98d9986 ARM: Kirkwood: Replace clock gating the kirkwood clock gating has been reworked. A custom variant of clock gating, that calls a custom function before gating the clock off, has been introduced. However in clk_register_gate_fn() this custom function "fn" is never assigned. This patch adds the missing fn assignment. Cc: stable Signed-off-by: Marc Kleine-Budde Tested-by: Andrew Lunn Acked-by: Andrew Lunn Signed-off-by: Olof Johansson --- arch/arm/mach-kirkwood/common.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c index e1d2c6def5e6..f261cd242643 100644 --- a/arch/arm/mach-kirkwood/common.c +++ b/arch/arm/mach-kirkwood/common.c @@ -159,6 +159,7 @@ static struct clk __init *clk_register_gate_fn(struct device *dev, gate_fn->gate.flags = clk_gate_flags; gate_fn->gate.lock = lock; gate_fn->gate.hw.init = &init; + gate_fn->fn = fn; /* ops is the gate ops, but with our disable function */ if (clk_gate_fn_ops.disable != clk_gate_fn_disable) { -- cgit v1.2.3-59-g8ed1b From 0fa1f0609a0c1fe8b2be3c0089a2cb48f7fda521 Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Fri, 22 Jun 2012 08:54:02 +0200 Subject: ARM: Orion: Fix Virtual/Physical mixup with watchdog The orion watchdog is expecting to be passed the physcial address of the hardware, and will ioremap() it to give a virtual address it will use as the base address for the hardware. However, when creating the platform resource record, a virtual address was being used. Add the necassary #define's so we can pass the physical address as expected. Tested on Kirkwood and Orion5x. Cc: stable Signed-off-by: Andrew Lunn Signed-off-by: Olof Johansson --- arch/arm/mach-kirkwood/include/mach/bridge-regs.h | 1 + arch/arm/mach-kirkwood/include/mach/kirkwood.h | 1 + arch/arm/mach-orion5x/include/mach/bridge-regs.h | 2 +- arch/arm/mach-orion5x/include/mach/orion5x.h | 1 + arch/arm/plat-orion/common.c | 2 +- 5 files changed, 5 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-kirkwood/include/mach/bridge-regs.h b/arch/arm/mach-kirkwood/include/mach/bridge-regs.h index 3eee37a3b501..a115142f8690 100644 --- a/arch/arm/mach-kirkwood/include/mach/bridge-regs.h +++ b/arch/arm/mach-kirkwood/include/mach/bridge-regs.h @@ -38,6 +38,7 @@ #define IRQ_MASK_HIGH_OFF 0x0014 #define TIMER_VIRT_BASE (BRIDGE_VIRT_BASE | 0x0300) +#define TIMER_PHYS_BASE (BRIDGE_PHYS_BASE | 0x0300) #define L2_CONFIG_REG (BRIDGE_VIRT_BASE | 0x0128) #define L2_WRITETHROUGH 0x00000010 diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h index fede3d503efa..c5b68510776b 100644 --- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h +++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h @@ -80,6 +80,7 @@ #define UART1_VIRT_BASE (DEV_BUS_VIRT_BASE | 0x2100) #define BRIDGE_VIRT_BASE (KIRKWOOD_REGS_VIRT_BASE | 0x20000) +#define BRIDGE_PHYS_BASE (KIRKWOOD_REGS_PHYS_BASE | 0x20000) #define CRYPTO_PHYS_BASE (KIRKWOOD_REGS_PHYS_BASE | 0x30000) diff --git a/arch/arm/mach-orion5x/include/mach/bridge-regs.h b/arch/arm/mach-orion5x/include/mach/bridge-regs.h index 96484bcd34ca..11a3c1e9801f 100644 --- a/arch/arm/mach-orion5x/include/mach/bridge-regs.h +++ b/arch/arm/mach-orion5x/include/mach/bridge-regs.h @@ -35,5 +35,5 @@ #define MAIN_IRQ_MASK (ORION5X_BRIDGE_VIRT_BASE | 0x204) #define TIMER_VIRT_BASE (ORION5X_BRIDGE_VIRT_BASE | 0x300) - +#define TIMER_PHYS_BASE (ORION5X_BRIDGE_PHYS_BASE | 0x300) #endif diff --git a/arch/arm/mach-orion5x/include/mach/orion5x.h b/arch/arm/mach-orion5x/include/mach/orion5x.h index 2745f5d95b3f..683e085ce162 100644 --- a/arch/arm/mach-orion5x/include/mach/orion5x.h +++ b/arch/arm/mach-orion5x/include/mach/orion5x.h @@ -82,6 +82,7 @@ #define UART1_VIRT_BASE (ORION5X_DEV_BUS_VIRT_BASE | 0x2100) #define ORION5X_BRIDGE_VIRT_BASE (ORION5X_REGS_VIRT_BASE | 0x20000) +#define ORION5X_BRIDGE_PHYS_BASE (ORION5X_REGS_PHYS_BASE | 0x20000) #define ORION5X_PCI_VIRT_BASE (ORION5X_REGS_VIRT_BASE | 0x30000) diff --git a/arch/arm/plat-orion/common.c b/arch/arm/plat-orion/common.c index 61fd837624a8..c1793786aea9 100644 --- a/arch/arm/plat-orion/common.c +++ b/arch/arm/plat-orion/common.c @@ -582,7 +582,7 @@ void __init orion_spi_1_init(unsigned long mapbase) * Watchdog ****************************************************************************/ static struct resource orion_wdt_resource = - DEFINE_RES_MEM(TIMER_VIRT_BASE, 0x28); + DEFINE_RES_MEM(TIMER_PHYS_BASE, 0x28); static struct platform_device orion_wdt_device = { .name = "orion_wdt", -- cgit v1.2.3-59-g8ed1b From 02b7d83436ae4b1d86a5df03e72c1c69af7e239d Mon Sep 17 00:00:00 2001 From: Anatol Pomozov Date: Sat, 23 Jun 2012 15:54:34 -0700 Subject: Fix typo in printed messages Coult -> Could Signed-off-by: Linus Torvalds --- arch/sparc/kernel/vio.c | 2 +- drivers/net/wireless/b43/main.c | 2 +- drivers/net/wireless/b43legacy/main.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/arch/sparc/kernel/vio.c b/arch/sparc/kernel/vio.c index 5cffdc55f075..3e244f31e56b 100644 --- a/arch/sparc/kernel/vio.c +++ b/arch/sparc/kernel/vio.c @@ -443,7 +443,7 @@ static int __init vio_init(void) root_vdev = vio_create_one(hp, root, NULL); err = -ENODEV; if (!root_vdev) { - printk(KERN_ERR "VIO: Coult not create root device.\n"); + printk(KERN_ERR "VIO: Could not create root device.\n"); goto out_release; } diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c index acd03a4f9730..1b988f26bdf1 100644 --- a/drivers/net/wireless/b43/main.c +++ b/drivers/net/wireless/b43/main.c @@ -3767,7 +3767,7 @@ static int b43_switch_band(struct b43_wl *wl, struct ieee80211_channel *chan) if (prev_status >= B43_STAT_STARTED) { err = b43_wireless_core_start(up_dev); if (err) { - b43err(wl, "Fatal: Coult not start device for " + b43err(wl, "Fatal: Could not start device for " "selected %s-GHz band\n", band_to_string(chan->band)); b43_wireless_core_exit(up_dev); diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c index cd9c9bc186d9..eae691e2f7dd 100644 --- a/drivers/net/wireless/b43legacy/main.c +++ b/drivers/net/wireless/b43legacy/main.c @@ -2633,7 +2633,7 @@ static int b43legacy_switch_phymode(struct b43legacy_wl *wl, if (prev_status >= B43legacy_STAT_STARTED) { err = b43legacy_wireless_core_start(up_dev); if (err) { - b43legacyerr(wl, "Fatal: Coult not start device for " + b43legacyerr(wl, "Fatal: Could not start device for " "newly selected %s-PHY mode\n", phymode_to_string(new_mode)); b43legacy_wireless_core_exit(up_dev); -- cgit v1.2.3-59-g8ed1b From 6b16351acbd415e66ba16bf7d473ece1574cf0bc Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 24 Jun 2012 12:53:04 -0700 Subject: Linux 3.5-rc4 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 462a0b4794b6..3fdfde2c1b7d 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 5 SUBLEVEL = 0 -EXTRAVERSION = -rc3 +EXTRAVERSION = -rc4 NAME = Saber-toothed Squirrel # *DOCUMENTATION* -- cgit v1.2.3-59-g8ed1b From 1f758b23177d588a71b96ad02990e715949bb82f Mon Sep 17 00:00:00 2001 From: Mandeep Singh Baines Date: Sun, 24 Jun 2012 23:31:09 +0200 Subject: PM / Sleep: Prevent waiting forever on asynchronous suspend after abort __device_suspend() must always send a completion. Otherwise, parent devices will wait forever. Commit 1e2ef05b, "PM: Limit race conditions between runtime PM and system sleep (v2)", introduced a regression by short-circuiting the complete_all() for certain error cases. This patch fixes the bug by always signalling a completion. Addresses http://crosbug.com/31972 Tested by injecting an abort. Signed-off-by: Mandeep Singh Baines Cc: stable@vger.kernel.org Signed-off-by: Rafael J. Wysocki --- drivers/base/power/main.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c index e0fb5b0435a3..9cb845e49334 100644 --- a/drivers/base/power/main.c +++ b/drivers/base/power/main.c @@ -1031,7 +1031,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async) dpm_wait_for_children(dev, async); if (async_error) - return 0; + goto Complete; pm_runtime_get_noresume(dev); if (pm_runtime_barrier(dev) && device_may_wakeup(dev)) @@ -1040,7 +1040,7 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async) if (pm_wakeup_pending()) { pm_runtime_put_sync(dev); async_error = -EBUSY; - return 0; + goto Complete; } device_lock(dev); @@ -1097,6 +1097,8 @@ static int __device_suspend(struct device *dev, pm_message_t state, bool async) } device_unlock(dev); + + Complete: complete_all(&dev->power.completion); if (error) { -- cgit v1.2.3-59-g8ed1b From 19a1d332cc8ca599578111b9ff8cd6963f75c387 Mon Sep 17 00:00:00 2001 From: Greg Ungerer Date: Tue, 12 Jun 2012 13:27:31 +1000 Subject: m68knommu: define a local devm_clk_get() function Commit f4d40de39a23f0c39cca55ac63e1175c69c3d2f7 ("net fec: do not depend on grouped clocks") breaks compilation of the FEC driver for non iMX platforms in linux-3.5-rc1. For example when compiling for ColdFire I get: LD vmlinux drivers/built-in.o: In function `fec_probe': fec.c:(.devinit.text+0x1e0): undefined reference to `devm_clk_get' Define a simple devm_clk_get() function for the m68knommu architecture. Signed-off-by: Greg Ungerer --- arch/m68k/platform/coldfire/clk.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/m68k/platform/coldfire/clk.c b/arch/m68k/platform/coldfire/clk.c index 9f1260c5e2ad..44da406897e5 100644 --- a/arch/m68k/platform/coldfire/clk.c +++ b/arch/m68k/platform/coldfire/clk.c @@ -42,4 +42,11 @@ unsigned long clk_get_rate(struct clk *clk) return MCF_CLK; } EXPORT_SYMBOL(clk_get_rate); + +struct clk *devm_clk_get(struct device *dev, const char *id) +{ + return NULL; +} +EXPORT_SYMBOL(devm_clk_get); + /***************************************************************************/ -- cgit v1.2.3-59-g8ed1b From aa8521ec2889d5d1f2f0ed00c3295b8229135f98 Mon Sep 17 00:00:00 2001 From: Jesper Juhl Date: Wed, 20 Jun 2012 21:18:48 +0200 Subject: hwmon: (applesmc) correct email address for Jesper Juhl I've not had a gmail address for years. This commit updates the address to my actual working one. Signed-off-by: Jesper Juhl Signed-off-by: Guenter Roeck --- drivers/hwmon/applesmc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/hwmon/applesmc.c b/drivers/hwmon/applesmc.c index 70d62f5bc909..2cde9ecf7731 100644 --- a/drivers/hwmon/applesmc.c +++ b/drivers/hwmon/applesmc.c @@ -8,7 +8,7 @@ * * Based on hdaps.c driver: * Copyright (C) 2005 Robert Love - * Copyright (C) 2005 Jesper Juhl + * Copyright (C) 2005 Jesper Juhl * * Fan control based on smcFanControl: * Copyright (C) 2006 Hendrik Holtmann -- cgit v1.2.3-59-g8ed1b From d42f0349f3fed647c61c2d432e974bbdafcfb3fb Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Mon, 25 Jun 2012 07:32:14 +0100 Subject: drm/udl: Make sure to get correct endian keys from vendor descriptor This is a port of commit b49f184b640dcfab7ede394cf2a1ff4fe3d154f5 Author: Ben Collins from udlfb to udl kms driver. The driver was not using le16_to_cpu when reading keys from the vendor descriptor, causing incorrect parsing. Mainly, sku_pixel_limit was not being parsed on big-endian systems. This would result in a blank screen on big-endian CPUs where the DL chips's max mode was smaller than the monitor's native mode. Signed-off-by: Dave Airlie --- drivers/gpu/drm/udl/udl_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c index a8d5f09428c7..4c2d836a0893 100644 --- a/drivers/gpu/drm/udl/udl_main.c +++ b/drivers/gpu/drm/udl/udl_main.c @@ -61,7 +61,7 @@ static int udl_parse_vendor_descriptor(struct drm_device *dev, u8 length; u16 key; - key = *((u16 *) desc); + key = le16_to_cpu(*((u16 *) desc)); desc += sizeof(u16); length = *desc; desc++; -- cgit v1.2.3-59-g8ed1b From 593f47355467b9ef44293698817e2bdb347e2d11 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Thu, 21 Jun 2012 11:48:11 +0200 Subject: ARM: dma-mapping: fix buffer chunk allocation order IOMMU-aware dma_alloc_attrs() implementation allocates buffers in power-of-two chunks to improve performance and take advantage of large page mappings provided by some IOMMU hardware. However current code, due to a subtle bug, allocated those chunks in the smallest-to-largest order, what completely killed all the advantages of using larger than page chunks. If a 4KiB chunk has been mapped as a first chunk, the consecutive chunks are not aligned correctly to the power-of-two which match their size and IOMMU drivers were not able to use internal mappings of size other than the 4KiB (largest common denominator of alignment and chunk size). This patch fixes this issue by changing to the correct largest-to-smallest chunk size allocation sequence. Signed-off-by: Marek Szyprowski --- arch/arm/mm/dma-mapping.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index d766e4256b74..4044abcf6f9d 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -1067,7 +1067,7 @@ static struct page **__iommu_alloc_buffer(struct device *dev, size_t size, gfp_t return NULL; while (count) { - int j, order = __ffs(count); + int j, order = __fls(count); pages[i] = alloc_pages(gfp | __GFP_NOWARN, order); while (!pages[i] && order) -- cgit v1.2.3-59-g8ed1b From 74953e201001b9582bf3125858cf6955650edb48 Mon Sep 17 00:00:00 2001 From: Clemens Ladisch Date: Sat, 23 Jun 2012 17:30:47 +0200 Subject: ALSA: usb-audio: add BOSS GT-100 support Reported-by: John McFarland Tested-by: John McFarland Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai --- sound/usb/quirks-table.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h index d89ab4c7d44b..79780fa57a43 100644 --- a/sound/usb/quirks-table.h +++ b/sound/usb/quirks-table.h @@ -1831,6 +1831,36 @@ YAMAHA_DEVICE(0x7010, "UB99"), } } }, +{ + USB_DEVICE(0x0582, 0x014d), + .driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) { + /* .vendor_name = "BOSS", */ + /* .product_name = "GT-100", */ + .ifnum = QUIRK_ANY_INTERFACE, + .type = QUIRK_COMPOSITE, + .data = (const struct snd_usb_audio_quirk[]) { + { + .ifnum = 1, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 2, + .type = QUIRK_AUDIO_STANDARD_INTERFACE + }, + { + .ifnum = 3, + .type = QUIRK_MIDI_FIXED_ENDPOINT, + .data = & (const struct snd_usb_midi_endpoint_info) { + .out_cables = 0x0001, + .in_cables = 0x0001 + } + }, + { + .ifnum = -1 + } + } + } +}, /* Guillemot devices */ { -- cgit v1.2.3-59-g8ed1b From 6cab3e1e65bfe070f09bb091eeda182b171d5929 Mon Sep 17 00:00:00 2001 From: Jaroslav Kysela Date: Mon, 28 May 2012 11:14:33 +0200 Subject: ASoC: wm8994: remove duplicate code It seems that the code duplication was added at a merge operation. Signed-off-by: Jaroslav Kysela Signed-off-by: Takashi Iwai --- sound/soc/codecs/wm8994.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/sound/soc/codecs/wm8994.c b/sound/soc/codecs/wm8994.c index aa8c98b628da..1436b6ce74d1 100644 --- a/sound/soc/codecs/wm8994.c +++ b/sound/soc/codecs/wm8994.c @@ -724,9 +724,6 @@ static void wm1811_jackdet_set_mode(struct snd_soc_codec *codec, u16 mode) { struct wm8994_priv *wm8994 = snd_soc_codec_get_drvdata(codec); - if (!wm8994->jackdet || !wm8994->jack_cb) - return; - if (!wm8994->jackdet || !wm8994->jack_cb) return; -- cgit v1.2.3-59-g8ed1b From ef5b6e127761667f78d99b7510a3876077fe9abe Mon Sep 17 00:00:00 2001 From: Florian Westphal Date: Sun, 17 Jun 2012 09:56:46 +0000 Subject: netfilter: ipset: fix interface comparision in hash-netiface sets ifname_compare() assumes that skb->dev is zero-padded, e.g 'eth1\0\0\0\0\0...'. This isn't always the case. e1000 driver does strncpy(netdev->name, pci_name(pdev), sizeof(netdev->name) - 1); in e1000_probe(), so once device is registered dev->name memory contains 'eth1\0:0:3\0\0\0' (or something like that), which makes eth1 compare fail. Use plain strcmp() instead. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso --- net/netfilter/ipset/ip_set_hash_netiface.c | 32 ++++-------------------------- 1 file changed, 4 insertions(+), 28 deletions(-) diff --git a/net/netfilter/ipset/ip_set_hash_netiface.c b/net/netfilter/ipset/ip_set_hash_netiface.c index ee863943c826..d5d3607ae7bc 100644 --- a/net/netfilter/ipset/ip_set_hash_netiface.c +++ b/net/netfilter/ipset/ip_set_hash_netiface.c @@ -38,30 +38,6 @@ struct iface_node { #define iface_data(n) (rb_entry(n, struct iface_node, node)->iface) -static inline long -ifname_compare(const char *_a, const char *_b) -{ - const long *a = (const long *)_a; - const long *b = (const long *)_b; - - BUILD_BUG_ON(IFNAMSIZ > 4 * sizeof(unsigned long)); - if (a[0] != b[0]) - return a[0] - b[0]; - if (IFNAMSIZ > sizeof(long)) { - if (a[1] != b[1]) - return a[1] - b[1]; - } - if (IFNAMSIZ > 2 * sizeof(long)) { - if (a[2] != b[2]) - return a[2] - b[2]; - } - if (IFNAMSIZ > 3 * sizeof(long)) { - if (a[3] != b[3]) - return a[3] - b[3]; - } - return 0; -} - static void rbtree_destroy(struct rb_root *root) { @@ -99,7 +75,7 @@ iface_test(struct rb_root *root, const char **iface) while (n) { const char *d = iface_data(n); - long res = ifname_compare(*iface, d); + int res = strcmp(*iface, d); if (res < 0) n = n->rb_left; @@ -121,7 +97,7 @@ iface_add(struct rb_root *root, const char **iface) while (*n) { char *ifname = iface_data(*n); - long res = ifname_compare(*iface, ifname); + int res = strcmp(*iface, ifname); p = *n; if (res < 0) @@ -366,7 +342,7 @@ hash_netiface4_uadt(struct ip_set *set, struct nlattr *tb[], struct hash_netiface4_elem data = { .cidr = HOST_MASK }; u32 ip = 0, ip_to, last; u32 timeout = h->timeout; - char iface[IFNAMSIZ] = {}; + char iface[IFNAMSIZ]; int ret; if (unlikely(!tb[IPSET_ATTR_IP] || @@ -663,7 +639,7 @@ hash_netiface6_uadt(struct ip_set *set, struct nlattr *tb[], ipset_adtfn adtfn = set->variant->adt[adt]; struct hash_netiface6_elem data = { .cidr = HOST_MASK }; u32 timeout = h->timeout; - char iface[IFNAMSIZ] = {}; + char iface[IFNAMSIZ]; int ret; if (unlikely(!tb[IPSET_ATTR_IP] || -- cgit v1.2.3-59-g8ed1b From c24584c028a62900ea6b541b312030f0feac93b8 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Sun, 24 Jun 2012 21:58:23 +0000 Subject: netfilter: ipvs: fix dst leak in __ip_vs_addr_is_local_v6 After call to ip6_route_output() we must release dst or we leak it. Also should test dst->error, as ip6_route_output() never returns NULL. Use boolean while we are at it. Signed-off-by: Eric Dumazet Signed-off-by: Pablo Neira Ayuso --- net/netfilter/ipvs/ip_vs_ctl.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/net/netfilter/ipvs/ip_vs_ctl.c b/net/netfilter/ipvs/ip_vs_ctl.c index dd811b8dd97c..d43e3c122f7b 100644 --- a/net/netfilter/ipvs/ip_vs_ctl.c +++ b/net/netfilter/ipvs/ip_vs_ctl.c @@ -76,19 +76,19 @@ static void __ip_vs_del_service(struct ip_vs_service *svc); #ifdef CONFIG_IP_VS_IPV6 /* Taken from rt6_fill_node() in net/ipv6/route.c, is there a better way? */ -static int __ip_vs_addr_is_local_v6(struct net *net, - const struct in6_addr *addr) +static bool __ip_vs_addr_is_local_v6(struct net *net, + const struct in6_addr *addr) { - struct rt6_info *rt; struct flowi6 fl6 = { .daddr = *addr, }; + struct dst_entry *dst = ip6_route_output(net, NULL, &fl6); + bool is_local; - rt = (struct rt6_info *)ip6_route_output(net, NULL, &fl6); - if (rt && rt->dst.dev && (rt->dst.dev->flags & IFF_LOOPBACK)) - return 1; + is_local = !dst->error && dst->dev && (dst->dev->flags & IFF_LOOPBACK); - return 0; + dst_release(dst); + return is_local; } #endif -- cgit v1.2.3-59-g8ed1b From a2da399823ccb0f4ddf83700bf297803e5320f7e Mon Sep 17 00:00:00 2001 From: Pablo Neira Ayuso Date: Mon, 25 Jun 2012 12:07:18 +0200 Subject: netfilter: update location of my trees Signed-off-by: Pablo Neira Ayuso --- MAINTAINERS | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index f6e62def61cd..302aa00e8309 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -4654,8 +4654,8 @@ L: netfilter@vger.kernel.org L: coreteam@netfilter.org W: http://www.netfilter.org/ W: http://www.iptables.org/ -T: git git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-2.6.git -T: git git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf-next-2.6.git +T: git git://1984.lsi.us.es/nf +T: git git://1984.lsi.us.es/nf-next S: Supported F: include/linux/netfilter* F: include/linux/netfilter/ -- cgit v1.2.3-59-g8ed1b From ac1534a55d1e87d59a21c09c570605933b551480 Mon Sep 17 00:00:00 2001 From: Joerg Roedel Date: Thu, 21 Jun 2012 14:52:40 +0200 Subject: iommu/amd: Initialize dma_ops for hotplug and sriov devices When a device is added to the system at runtime the AMD IOMMU driver initializes the necessary data structures to handle translation for it. But it forgets to change the per-device dma_ops to point to the AMD IOMMU driver. So mapping actually never happens and all DMA accesses end in an IO_PAGE_FAULT. Fix this. Reported-by: Stefan Assmann Cc: stable@vger.kernel.org Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index a2e418cba0ff..dfe7d37c82c5 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -83,6 +83,8 @@ static struct iommu_ops amd_iommu_ops; static ATOMIC_NOTIFIER_HEAD(ppr_notifier); int amd_iommu_max_glx_val = -1; +static struct dma_map_ops amd_iommu_dma_ops; + /* * general struct to manage commands send to an IOMMU */ @@ -2267,6 +2269,13 @@ static int device_change_notifier(struct notifier_block *nb, list_add_tail(&dma_domain->list, &iommu_pd_list); spin_unlock_irqrestore(&iommu_pd_list_lock, flags); + dev_data = get_dev_data(dev); + + if (!dev_data->passthrough) + dev->archdata.dma_ops = &amd_iommu_dma_ops; + else + dev->archdata.dma_ops = &nommu_dma_ops; + break; case BUS_NOTIFY_DEL_DEVICE: -- cgit v1.2.3-59-g8ed1b From 90e614bb4c581eb588ec26f130fcdd65aa047fa8 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Wed, 16 May 2012 11:35:04 -0300 Subject: [media] s5p-fimc: Fix bug in capture node open() When video pipeline initialization fails, the ST_CAPT_BUSY flag needs to be cleared before pm_runtime_put_sync is called. Otherwise the runtime suspend routine tries to suspend device, rather than just turning it off. Also fix potential null pointer dereference in fimc_pipeline_shutdown(). Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 2 +- drivers/media/video/s5p-fimc/fimc-mdevice.c | 6 +++++- 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 354574591908..7083107c2b37 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -499,10 +499,10 @@ static int fimc_capture_open(struct file *file) if (ret < 0) { dev_err(&fimc->pdev->dev, "Video pipeline initialization failed\n"); + clear_bit(ST_CAPT_BUSY, &fimc->state); pm_runtime_put_sync(&fimc->pdev->dev); fimc->vid_cap.refcnt--; v4l2_fh_release(file); - clear_bit(ST_CAPT_BUSY, &fimc->state); return ret; } ret = fimc_capture_ctrls_create(fimc); diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c index 6753c45631b8..7450dcdafc87 100644 --- a/drivers/media/video/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c @@ -193,9 +193,13 @@ int __fimc_pipeline_shutdown(struct fimc_pipeline *p) int fimc_pipeline_shutdown(struct fimc_pipeline *p) { - struct media_entity *me = &p->subdevs[IDX_SENSOR]->entity; + struct media_entity *me; int ret; + if (!p || !p->subdevs[IDX_SENSOR]) + return -EINVAL; + + me = &p->subdevs[IDX_SENSOR]->entity; mutex_lock(&me->parent->graph_mutex); ret = __fimc_pipeline_shutdown(p); mutex_unlock(&me->parent->graph_mutex); -- cgit v1.2.3-59-g8ed1b From d0da3c3565a1dd3cdfa374038d6ccae4b90fe142 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Wed, 16 May 2012 13:08:30 -0300 Subject: [media] s5p-fimc: Don't create multiple active links to same sink entity The driver is supposed to create active media link from sensor N (or its corresponding s5p-mipi-csis entity) to FIMC.N by default. Instead s5p-mipi-csis.N entity gets always connected by a default active link to FIMC.N, regardless of there are parallel bus sensor entities already connected to FIMC.N. Correct this. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-mdevice.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c index 7450dcdafc87..dffe4da5eaa0 100644 --- a/drivers/media/video/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c @@ -502,12 +502,12 @@ static void fimc_md_unregister_entities(struct fimc_md *fmd) * @source: the source entity to create links to all fimc entities from * @sensor: sensor subdev linked to FIMC[fimc_id] entity, may be null * @pad: the source entity pad index - * @fimc_id: index of the fimc device for which link should be enabled + * @link_mask: bitmask of the fimc devices for which link should be enabled */ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, struct media_entity *source, struct v4l2_subdev *sensor, - int pad, int fimc_id) + int pad, int link_mask) { struct fimc_sensor_info *s_info; struct media_entity *sink; @@ -524,7 +524,7 @@ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, if (!fmd->fimc[i]->variant->has_cam_if) continue; - flags = (i == fimc_id) ? MEDIA_LNK_FL_ENABLED : 0; + flags = ((1 << i) & link_mask) ? MEDIA_LNK_FL_ENABLED : 0; sink = &fmd->fimc[i]->vid_cap.subdev.entity; ret = media_entity_create_link(source, pad, sink, @@ -556,7 +556,10 @@ static int __fimc_md_create_fimc_sink_links(struct fimc_md *fmd, if (!fmd->fimc_lite[i]) continue; - flags = (i == fimc_id) ? MEDIA_LNK_FL_ENABLED : 0; + if (link_mask & (1 << (i + FIMC_MAX_DEVS))) + flags = MEDIA_LNK_FL_ENABLED; + else + flags = 0; sink = &fmd->fimc_lite[i]->subdev.entity; ret = media_entity_create_link(source, pad, sink, @@ -618,9 +621,8 @@ static int fimc_md_create_links(struct fimc_md *fmd) struct s5p_fimc_isp_info *pdata; struct fimc_sensor_info *s_info; struct media_entity *source, *sink; - int i, pad, fimc_id = 0; - int ret = 0; - u32 flags; + int i, pad, fimc_id = 0, ret = 0; + u32 flags, link_mask = 0; for (i = 0; i < fmd->num_sensors; i++) { if (fmd->sensor[i].subdev == NULL) @@ -672,19 +674,20 @@ static int fimc_md_create_links(struct fimc_md *fmd) if (source == NULL) continue; + link_mask = 1 << fimc_id++; ret = __fimc_md_create_fimc_sink_links(fmd, source, sensor, - pad, fimc_id++); + pad, link_mask); } - fimc_id = 0; for (i = 0; i < ARRAY_SIZE(fmd->csis); i++) { if (fmd->csis[i].sd == NULL) continue; source = &fmd->csis[i].sd->entity; pad = CSIS_PAD_SOURCE; + link_mask = 1 << fimc_id++; ret = __fimc_md_create_fimc_sink_links(fmd, source, NULL, - pad, fimc_id++); + pad, link_mask); } /* Create immutable links between each FIMC's subdev and video node */ -- cgit v1.2.3-59-g8ed1b From d547ab66e275e2f6bf703572e943018ef7c391c5 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Wed, 16 May 2012 15:00:26 -0300 Subject: [media] s5p-fimc: Honour sizeimage in VIDIOC_S_FMT Allow memory buffer size to be increased by means of struct v4l2_pix_plane_format::sizeimage at VIDIOC_S_FMT ioctl. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 7 ++++--- drivers/media/video/s5p-fimc/fimc-core.c | 9 +++++---- 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 7083107c2b37..13df7230c8d8 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -350,7 +350,8 @@ static int queue_setup(struct vb2_queue *vq, const struct v4l2_format *pfmt, if (pixm) sizes[i] = max(size, pixm->plane_fmt[i].sizeimage); else - sizes[i] = size; + sizes[i] = max_t(u32, size, frame->payload[i]); + allocators[i] = ctx->fimc_dev->alloc_ctx; } @@ -924,10 +925,10 @@ static int fimc_capture_set_format(struct fimc_dev *fimc, struct v4l2_format *f) pix->width = mf->width; pix->height = mf->height; } + fimc_adjust_mplane_format(ff->fmt, pix->width, pix->height, pix); for (i = 0; i < ff->fmt->colplanes; i++) - ff->payload[i] = - (pix->width * pix->height * ff->fmt->depth[i]) / 8; + ff->payload[i] = pix->plane_fmt[i].sizeimage; set_frame_bounds(ff, pix->width, pix->height); /* Reset the composition rectangle if not yet configured */ diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c index 92fc5a20fb76..65124a24c30f 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.c +++ b/drivers/media/video/s5p-fimc/fimc-core.c @@ -741,8 +741,8 @@ void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height, pix->width = width; for (i = 0; i < pix->num_planes; ++i) { - u32 bpl = pix->plane_fmt[i].bytesperline; - u32 *sizeimage = &pix->plane_fmt[i].sizeimage; + struct v4l2_plane_pix_format *plane_fmt = &pix->plane_fmt[i]; + u32 bpl = plane_fmt->bytesperline; if (fmt->colplanes > 1 && (bpl == 0 || bpl < pix->width)) bpl = pix->width; /* Planar */ @@ -754,8 +754,9 @@ void fimc_adjust_mplane_format(struct fimc_fmt *fmt, u32 width, u32 height, if (i == 0) /* Same bytesperline for each plane. */ bytesperline = bpl; - pix->plane_fmt[i].bytesperline = bytesperline; - *sizeimage = (pix->width * pix->height * fmt->depth[i]) / 8; + plane_fmt->bytesperline = bytesperline; + plane_fmt->sizeimage = max((pix->width * pix->height * + fmt->depth[i]) / 8, plane_fmt->sizeimage); } } -- cgit v1.2.3-59-g8ed1b From 0b4b1f199d367762ddb68cb3303431fa6c84a7d6 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Wed, 16 May 2012 15:03:50 -0300 Subject: [media] s5p-fimc: Remove superfluous checks for buffer type The checks are already done at the v4l2 framework. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 13df7230c8d8..0fd12dfbd3db 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -819,9 +819,6 @@ static int fimc_cap_g_fmt_mplane(struct file *file, void *fh, struct fimc_dev *fimc = video_drvdata(file); struct fimc_ctx *ctx = fimc->vid_cap.ctx; - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) - return -EINVAL; - return fimc_fill_format(&ctx->d_frame, f); } @@ -834,9 +831,6 @@ static int fimc_cap_try_fmt_mplane(struct file *file, void *fh, struct v4l2_mbus_framefmt mf; struct fimc_fmt *ffmt = NULL; - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) - return -EINVAL; - if (pix->pixelformat == V4L2_PIX_FMT_JPEG) { fimc_capture_try_format(ctx, &pix->width, &pix->height, NULL, &pix->pixelformat, @@ -888,8 +882,6 @@ static int fimc_capture_set_format(struct fimc_dev *fimc, struct v4l2_format *f) struct fimc_fmt *s_fmt = NULL; int ret, i; - if (f->type != V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE) - return -EINVAL; if (vb2_is_busy(&fimc->vid_cap.vbq)) return -EBUSY; -- cgit v1.2.3-59-g8ed1b From e3fc82e8b9f550d28f05600b98bcc8c26beef2ef Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Thu, 17 May 2012 14:22:10 -0300 Subject: [media] s5p-fimc: Prevent lock-up in multiple sensor systems The camera clocks managed by the driver were improperly reference counted and remained disabled when multiple video nodes were opened simultaneously. It manifested itself with following warning: [12.920000] WARNING: at drivers/media/video/s5p-fimc/fimc-mdevice.c:787 __fimc_md_set_camclk+0x1c0/0x1dc() [13.005000] Modules linked in: [13.005000] Backtrace: [13.040000] [] (dump_backtrace+0x0/0x10c) from [] (dump_stack+0x18/0x1c) [13.070000] r7:00000009 r6:00000313 r5:c02d576c r4:00000000 [13.155000] [] (dump_stack+0x0/0x1c) from [] (warn_slowpath_common+0x54/0x6c) [13.285000] [] (warn_slowpath_common+0x0/0x6c) from [] (warn_slowpath_null+0x24/0x2c) [13.360000] r9:e1981010 r8:00000000 r7:c061d3fc r6:e1981010 r5:e1981030 [13.430000] r4:00000000 [13.430000] [] (warn_slowpath_null+0x0/0x2c) from [] (__fimc_md_set_camclk+0x1c0/0x1dc) [13.550000] [] (__fimc_md_set_camclk+0x0/0x1dc) from [] (fimc_md_set_camclk+0x28/0x2c) [13.630000] [] (fimc_md_set_camclk+0x0/0x2c) from [] (__fimc_pipeline_shutdown+0x34/0x50) [13.705000] [] (__fimc_pipeline_shutdown+0x0/0x50) from [] (fimc_pipeline_shutdown+0x40/0x58) [13.765000] r5:e2391200 r4:e2357704 [13.805000] [] (fimc_pipeline_shutdown+0x0/0x58) from [] (fimc_capture_close+0xcc/0xe4) [13.915000] r5:e1b396c0 r4:e2357410 [13.915000] [] (fimc_capture_close+0x0/0xe4) from [] (v4l2_release+0x5c/0x80) [13.970000] r7:00000010 r6:e1d2d990 r5:e1b396c0 r4:e2394800 [14.000000] [] (v4l2_release+0x0/0x80) from [] (fput+0xc0/0x22c) [14.015000] r5:c157ef30 r4:e1b396c0 [14.015000] [] (fput+0x0/0x22c) from [] (filp_close+0x60/0x80) [14.080000] [] (filp_close+0x0/0x80) from [] (sys_close+0xb8/0xf4) [14.125000] r7:00000001 r6:e1b396c0 r5:c1400340 r4:c1400300 [14.125000] [] (sys_close+0x0/0xf4) from [] (ret_fast_syscall+0x0/0x30) [14.205000] r7:00000006 r6:beee5b94 r5:00000003 r4:b6f64fac Fix this, as well as potential memory leaks due to not calling v4l2_fh_release() on some error paths. Also remove some error logs printed for events that aren't critical and are normal conditions for some system configurations. Also check if the device have been properly run-time enabled during video node open. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 46 +++++++++++++++-------------- drivers/media/video/s5p-fimc/fimc-lite.c | 14 +++++---- drivers/media/video/s5p-fimc/fimc-mdevice.c | 19 ++++-------- drivers/media/video/s5p-fimc/fimc-mdevice.h | 2 -- 4 files changed, 38 insertions(+), 43 deletions(-) diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 0fd12dfbd3db..71e483847a17 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -480,37 +480,39 @@ static int fimc_capture_set_default_format(struct fimc_dev *fimc); static int fimc_capture_open(struct file *file) { struct fimc_dev *fimc = video_drvdata(file); - int ret = v4l2_fh_open(file); - - if (ret) - return ret; + int ret; dbg("pid: %d, state: 0x%lx", task_pid_nr(current), fimc->state); - /* Return if the corresponding video mem2mem node is already opened. */ if (fimc_m2m_active(fimc)) return -EBUSY; set_bit(ST_CAPT_BUSY, &fimc->state); - pm_runtime_get_sync(&fimc->pdev->dev); - - if (++fimc->vid_cap.refcnt == 1) { - ret = fimc_pipeline_initialize(&fimc->pipeline, - &fimc->vid_cap.vfd->entity, true); - if (ret < 0) { - dev_err(&fimc->pdev->dev, - "Video pipeline initialization failed\n"); - clear_bit(ST_CAPT_BUSY, &fimc->state); - pm_runtime_put_sync(&fimc->pdev->dev); - fimc->vid_cap.refcnt--; - v4l2_fh_release(file); - return ret; - } - ret = fimc_capture_ctrls_create(fimc); + ret = pm_runtime_get_sync(&fimc->pdev->dev); + if (ret < 0) + return ret; + + ret = v4l2_fh_open(file); + if (ret) + return ret; + + if (++fimc->vid_cap.refcnt != 1) + return 0; - if (!ret && !fimc->vid_cap.user_subdev_api) - ret = fimc_capture_set_default_format(fimc); + ret = fimc_pipeline_initialize(&fimc->pipeline, + &fimc->vid_cap.vfd->entity, true); + if (ret < 0) { + clear_bit(ST_CAPT_BUSY, &fimc->state); + pm_runtime_put_sync(&fimc->pdev->dev); + fimc->vid_cap.refcnt--; + v4l2_fh_release(file); + return ret; } + ret = fimc_capture_ctrls_create(fimc); + + if (!ret && !fimc->vid_cap.user_subdev_api) + ret = fimc_capture_set_default_format(fimc); + return ret; } diff --git a/drivers/media/video/s5p-fimc/fimc-lite.c b/drivers/media/video/s5p-fimc/fimc-lite.c index 400d701aef04..bbe93e4a8731 100644 --- a/drivers/media/video/s5p-fimc/fimc-lite.c +++ b/drivers/media/video/s5p-fimc/fimc-lite.c @@ -451,21 +451,23 @@ static void fimc_lite_clear_event_counters(struct fimc_lite *fimc) static int fimc_lite_open(struct file *file) { struct fimc_lite *fimc = video_drvdata(file); - int ret = v4l2_fh_open(file); - - if (ret) - return ret; + int ret; set_bit(ST_FLITE_IN_USE, &fimc->state); - pm_runtime_get_sync(&fimc->pdev->dev); + ret = pm_runtime_get_sync(&fimc->pdev->dev); + if (ret < 0) + return ret; if (++fimc->ref_count != 1 || fimc->out_path != FIMC_IO_DMA) + return 0; + + ret = v4l2_fh_open(file); + if (ret < 0) return ret; ret = fimc_pipeline_initialize(&fimc->pipeline, &fimc->vfd->entity, true); if (ret < 0) { - v4l2_err(fimc->vfd, "Video pipeline initialization failed\n"); pm_runtime_put_sync(&fimc->pdev->dev); fimc->ref_count--; v4l2_fh_release(file); diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.c b/drivers/media/video/s5p-fimc/fimc-mdevice.c index dffe4da5eaa0..52cef4865423 100644 --- a/drivers/media/video/s5p-fimc/fimc-mdevice.c +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.c @@ -741,8 +741,8 @@ static void fimc_md_put_clocks(struct fimc_md *fmd) } static int __fimc_md_set_camclk(struct fimc_md *fmd, - struct fimc_sensor_info *s_info, - bool on) + struct fimc_sensor_info *s_info, + bool on) { struct s5p_fimc_isp_info *pdata = s_info->pdata; struct fimc_camclk_info *camclk; @@ -751,12 +751,10 @@ static int __fimc_md_set_camclk(struct fimc_md *fmd, if (WARN_ON(pdata->clk_id >= FIMC_MAX_CAMCLKS) || fmd == NULL) return -EINVAL; - if (s_info->clk_on == on) - return 0; camclk = &fmd->camclk[pdata->clk_id]; - dbg("camclk %d, f: %lu, clk: %p, on: %d", - pdata->clk_id, pdata->clk_frequency, camclk, on); + dbg("camclk %d, f: %lu, use_count: %d, on: %d", + pdata->clk_id, pdata->clk_frequency, camclk->use_count, on); if (on) { if (camclk->use_count > 0 && @@ -767,11 +765,9 @@ static int __fimc_md_set_camclk(struct fimc_md *fmd, clk_set_rate(camclk->clock, pdata->clk_frequency); camclk->frequency = pdata->clk_frequency; ret = clk_enable(camclk->clock); + dbg("Enabled camclk %d: f: %lu", pdata->clk_id, + clk_get_rate(camclk->clock)); } - s_info->clk_on = 1; - dbg("Enabled camclk %d: f: %lu", pdata->clk_id, - clk_get_rate(camclk->clock)); - return ret; } @@ -780,7 +776,6 @@ static int __fimc_md_set_camclk(struct fimc_md *fmd, if (--camclk->use_count == 0) { clk_disable(camclk->clock); - s_info->clk_on = 0; dbg("Disabled camclk %d", pdata->clk_id); } return ret; @@ -796,8 +791,6 @@ static int __fimc_md_set_camclk(struct fimc_md *fmd, * devices to which sensors can be attached, either directly or through * the MIPI CSI receiver. The clock is allowed here to be used by * multiple sensors concurrently if they use same frequency. - * The per sensor subdev clk_on attribute helps to synchronize accesses - * to the sclk_cam clocks from the video and media device nodes. * This function should only be called when the graph mutex is held. */ int fimc_md_set_camclk(struct v4l2_subdev *sd, bool on) diff --git a/drivers/media/video/s5p-fimc/fimc-mdevice.h b/drivers/media/video/s5p-fimc/fimc-mdevice.h index 3b8a3492a176..1f5dbaff5442 100644 --- a/drivers/media/video/s5p-fimc/fimc-mdevice.h +++ b/drivers/media/video/s5p-fimc/fimc-mdevice.h @@ -47,7 +47,6 @@ struct fimc_camclk_info { * @pdata: sensor's atrributes passed as media device's platform data * @subdev: image sensor v4l2 subdev * @host: fimc device the sensor is currently linked to - * @clk_on: sclk_cam clock's state associated with this subdev * * This data structure applies to image sensor and the writeback subdevs. */ @@ -55,7 +54,6 @@ struct fimc_sensor_info { struct s5p_fimc_isp_info *pdata; struct v4l2_subdev *subdev; struct fimc_dev *host; - bool clk_on; }; /** -- cgit v1.2.3-59-g8ed1b From 316efab3e949e4fbdacb0975bf33adbad89115db Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Fri, 18 May 2012 13:31:28 -0300 Subject: [media] s5p-fimc: Fix fimc-lite system wide suspend procedure Only suspend the video pipeline devices if they were active before the pm.suspend() helper is called. This patch prevents following error: /# echo mem > /sys/power/state [ 34.965000] PM: Syncing filesystems ... done. [ 35.035000] Freezing user space processes ... (elapsed 0.01 seconds) done. ... [ 35.105000] dpm_run_callback(): platform_pm_suspend+0x0/0x5c returns -22 [ 35.105000] PM: Device exynos-fimc-lite.1 failed to suspend: error -22 [ 35.105000] PM: Some devices failed to suspend Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-lite.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/s5p-fimc/fimc-lite.c b/drivers/media/video/s5p-fimc/fimc-lite.c index bbe93e4a8731..b0a8ce61ebf2 100644 --- a/drivers/media/video/s5p-fimc/fimc-lite.c +++ b/drivers/media/video/s5p-fimc/fimc-lite.c @@ -1510,7 +1510,7 @@ static int fimc_lite_suspend(struct device *dev) return 0; ret = fimc_lite_stop_capture(fimc, suspend); - if (ret) + if (ret < 0 || !fimc_lite_active(fimc)) return ret; return fimc_pipeline_shutdown(&fimc->pipeline); -- cgit v1.2.3-59-g8ed1b From 0a198bcd511fcc60dc5daa203d221aafc95e0471 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Tue, 22 May 2012 13:50:14 -0300 Subject: [media] s5p-fimc: Shorten pixel formats description Shorten pixel format descriptions that exceed 32 characters so they're not being truncated when queried from user space. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-core.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c index 65124a24c30f..987bff20cc34 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.c +++ b/drivers/media/video/s5p-fimc/fimc-core.c @@ -153,7 +153,7 @@ static struct fimc_fmt fimc_formats[] = { .colplanes = 2, .flags = FMT_FLAGS_M2M, }, { - .name = "YUV 4:2:0 non-contiguous 2-planar, Y/CbCr", + .name = "YUV 4:2:0 non-contig. 2p, Y/CbCr", .fourcc = V4L2_PIX_FMT_NV12M, .color = FIMC_FMT_YCBCR420, .depth = { 8, 4 }, @@ -161,7 +161,7 @@ static struct fimc_fmt fimc_formats[] = { .colplanes = 2, .flags = FMT_FLAGS_M2M, }, { - .name = "YUV 4:2:0 non-contiguous 3-planar, Y/Cb/Cr", + .name = "YUV 4:2:0 non-contig. 3p, Y/Cb/Cr", .fourcc = V4L2_PIX_FMT_YUV420M, .color = FIMC_FMT_YCBCR420, .depth = { 8, 2, 2 }, @@ -169,7 +169,7 @@ static struct fimc_fmt fimc_formats[] = { .colplanes = 3, .flags = FMT_FLAGS_M2M, }, { - .name = "YUV 4:2:0 non-contiguous 2-planar, Y/CbCr, tiled", + .name = "YUV 4:2:0 non-contig. 2p, tiled", .fourcc = V4L2_PIX_FMT_NV12MT, .color = FIMC_FMT_YCBCR420, .depth = { 8, 4 }, -- cgit v1.2.3-59-g8ed1b From 8183e7a7e2a4b542bd3044c5e3b0e116b0a7d2a1 Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Fri, 25 May 2012 07:04:01 -0300 Subject: [media] s5p-fimc: Update to the control handler lock changes MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 77e7c4e624404c6edb5686b3d5f873c6008ed6b0 "v4l: Allow changing control handler lock" changed the lock field of struct v4l2_ctrl_handler to a pointer and this driver wasn't updated properly. This patch fixes following warning: drivers/media/video/s5p-fimc/fimc-core.c: In function ‘fimc_ctrls_activate’: drivers/media/video/s5p-fimc/fimc-core.c:644: warning: passing argument 1 of ‘mutex_lock’ from incompatible pointer type include/linux/mutex.h:152: note: expected ‘struct mutex *’ but argument is of type ‘struct mutex **’ drivers/media/video/s5p-fimc/fimc-core.c:663: warning: passing argument 1 of ‘mutex_unlock’ from incompatible pointer type include/linux/mutex.h:169: note: expected ‘struct mutex *’ but argument is of type ‘struct mutex **’ Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/video/s5p-fimc/fimc-core.c b/drivers/media/video/s5p-fimc/fimc-core.c index 987bff20cc34..a4646ca1d56f 100644 --- a/drivers/media/video/s5p-fimc/fimc-core.c +++ b/drivers/media/video/s5p-fimc/fimc-core.c @@ -641,7 +641,7 @@ void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active) if (!ctrls->ready) return; - mutex_lock(&ctrls->handler.lock); + mutex_lock(ctrls->handler.lock); v4l2_ctrl_activate(ctrls->rotate, active); v4l2_ctrl_activate(ctrls->hflip, active); v4l2_ctrl_activate(ctrls->vflip, active); @@ -660,7 +660,7 @@ void fimc_ctrls_activate(struct fimc_ctx *ctx, bool active) ctx->hflip = 0; ctx->vflip = 0; } - mutex_unlock(&ctrls->handler.lock); + mutex_unlock(ctrls->handler.lock); } /* Update maximum value of the alpha color control */ -- cgit v1.2.3-59-g8ed1b From a60a295986edcbca6603cd42b4e38d7c83d87fb6 Mon Sep 17 00:00:00 2001 From: Sakari Ailus Date: Fri, 25 May 2012 07:08:05 -0300 Subject: [media] s5p-fimc: media_entity_pipeline_start() may fail Take into account media_entity_pipeline_start() may fail. [s.nawrocki: rebased onto latest tree] Signed-off-by: Sakari Ailus Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 71e483847a17..7ace324d30cd 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -1045,8 +1045,10 @@ static int fimc_cap_streamon(struct file *file, void *priv, if (fimc_capture_active(fimc)) return -EBUSY; - media_entity_pipeline_start(&p->subdevs[IDX_SENSOR]->entity, + ret = media_entity_pipeline_start(&p->subdevs[IDX_SENSOR]->entity, p->m_pipeline); + if (ret < 0) + return ret; if (fimc->vid_cap.user_subdev_api) { ret = fimc_pipeline_validate(fimc); -- cgit v1.2.3-59-g8ed1b From a1a5861bd9ca3a6cb7ab89dd836da8cd158986b0 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Fri, 25 May 2012 03:29:38 -0300 Subject: [media] s5p-fimc: Fix compiler warning in fimc-lite.c MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This patch is an update to changed media_entity_pipeline_start() signature in commit af88be3887c1a0b20d0792c3c237a67c73ef3286, "media: Add link_validate() op to check links to the sink pad" It fixes the following warning: drivers/media/video/s5p-fimc/fimc-lite.c: In function ‘fimc_lite_streamon’: drivers/media/video/s5p-fimc/fimc-lite.c:765:29: warning: ignoring return value of ‘media_entity_pipeline_start’, declared with attribute warn_unused_result [-Wunused-result] Signed-off-by: Sachin Kamat Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-lite.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/media/video/s5p-fimc/fimc-lite.c b/drivers/media/video/s5p-fimc/fimc-lite.c index b0a8ce61ebf2..4d269b8fa1ef 100644 --- a/drivers/media/video/s5p-fimc/fimc-lite.c +++ b/drivers/media/video/s5p-fimc/fimc-lite.c @@ -764,7 +764,9 @@ static int fimc_lite_streamon(struct file *file, void *priv, if (fimc_lite_active(fimc)) return -EBUSY; - media_entity_pipeline_start(&sensor->entity, p->m_pipeline); + ret = media_entity_pipeline_start(&sensor->entity, p->m_pipeline); + if (ret < 0) + return ret; ret = fimc_pipeline_validate(fimc); if (ret) { -- cgit v1.2.3-59-g8ed1b From f676fa068819357f716953920b764554fe116b3c Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Fri, 25 May 2012 03:29:40 -0300 Subject: [media] s5p-fimc: Stop media entity pipeline if fimc_pipeline_validate fails Stops the media entity pipeline which was started earlier if fimc_pipeline_validate fails. [s.nawrocki: reworked to not exceed 80 characters line length] Signed-off-by: Sachin Kamat Signed-off-by: Sylwester Nawrocki Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-capture.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/media/video/s5p-fimc/fimc-capture.c b/drivers/media/video/s5p-fimc/fimc-capture.c index 7ace324d30cd..725812aa0c30 100644 --- a/drivers/media/video/s5p-fimc/fimc-capture.c +++ b/drivers/media/video/s5p-fimc/fimc-capture.c @@ -1040,20 +1040,22 @@ static int fimc_cap_streamon(struct file *file, void *priv, { struct fimc_dev *fimc = video_drvdata(file); struct fimc_pipeline *p = &fimc->pipeline; + struct v4l2_subdev *sd = p->subdevs[IDX_SENSOR]; int ret; if (fimc_capture_active(fimc)) return -EBUSY; - ret = media_entity_pipeline_start(&p->subdevs[IDX_SENSOR]->entity, - p->m_pipeline); + ret = media_entity_pipeline_start(&sd->entity, p->m_pipeline); if (ret < 0) return ret; if (fimc->vid_cap.user_subdev_api) { ret = fimc_pipeline_validate(fimc); - if (ret) + if (ret < 0) { + media_entity_pipeline_stop(&sd->entity); return ret; + } } return vb2_streamon(&fimc->vid_cap.vbq, type); } -- cgit v1.2.3-59-g8ed1b From 55d52ea86898f7b8fed437d400e6e28f4ef47665 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 25 Jun 2012 14:36:43 +0200 Subject: ALSA: hda - Remove obsoleted CONFIG_SND_HDA_ENABLE_REALTEK_QUIRKS I simply forgot to remove this entry although all Realtek quirks have been dropped. Signed-off-by: Takashi Iwai --- sound/pci/hda/Kconfig | 13 ------------- 1 file changed, 13 deletions(-) diff --git a/sound/pci/hda/Kconfig b/sound/pci/hda/Kconfig index 163b6b5de3eb..d03079764189 100644 --- a/sound/pci/hda/Kconfig +++ b/sound/pci/hda/Kconfig @@ -97,19 +97,6 @@ config SND_HDA_CODEC_REALTEK snd-hda-codec-realtek. This module is automatically loaded at probing. -config SND_HDA_ENABLE_REALTEK_QUIRKS - bool "Build static quirks for Realtek codecs" - depends on SND_HDA_CODEC_REALTEK - default y - help - Say Y here to build the static quirks codes for Realtek codecs. - If you need the "model" preset that the default BIOS auto-parser - can't handle, turn this option on. - - If your device works with model=auto option, basically you don't - need the quirk code. By turning this off, you can reduce the - module size quite a lot. - config SND_HDA_CODEC_ANALOG bool "Build Analog Device HD-audio codec support" default y -- cgit v1.2.3-59-g8ed1b From e75561b3d2a4eb15080ed73f59f7dc2965c01423 Mon Sep 17 00:00:00 2001 From: Yufeng Shen Date: Fri, 22 Jun 2012 12:31:53 -0400 Subject: HID: magicmouse: Correct report range of major / minor axes In patch "HID: magicmouse: Adjust major / minor axes to scale", touch_major and touch_minor axes are scaled by a factor of four when reported but the max touch_major/minor is not scaled accordingly. This patch scales the max touch_major/minor to be consistent with the reported value. Signed-off-by: Yufeng Shen Acked-by: Henrik Rydberg Signed-off-by: Jiri Kosina --- drivers/hid/hid-magicmouse.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index 7cf3ffe4b7bc..40ac6654f1d1 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -426,8 +426,10 @@ static void magicmouse_setup_input(struct input_dev *input, struct hid_device *h __set_bit(EV_ABS, input->evbit); input_set_abs_params(input, ABS_MT_TRACKING_ID, 0, 15, 0, 0); - input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 255, 4, 0); - input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 255, 4, 0); + input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, 255 << 2, + 4, 0); + input_set_abs_params(input, ABS_MT_TOUCH_MINOR, 0, 255 << 2, + 4, 0); input_set_abs_params(input, ABS_MT_ORIENTATION, -31, 32, 1, 0); /* Note: Touch Y position from the device is inverted relative -- cgit v1.2.3-59-g8ed1b From bb9a80e5719abae235c7e9c7391a3a17b64a217b Mon Sep 17 00:00:00 2001 From: Guenter Roeck Date: Fri, 22 Jun 2012 12:07:25 -0700 Subject: hwmon: Update my e-mail address My old e-mail address won't be valid for much longer. Time to update it. Signed-off-by: Guenter Roeck Acked-by: Jean Delvare --- drivers/hwmon/jc42.c | 2 +- drivers/hwmon/lineage-pem.c | 2 +- drivers/hwmon/ltc4261.c | 2 +- drivers/hwmon/max16065.c | 2 +- 4 files changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/hwmon/jc42.c b/drivers/hwmon/jc42.c index a9bfd6736d9a..e72ba5d2a824 100644 --- a/drivers/hwmon/jc42.c +++ b/drivers/hwmon/jc42.c @@ -590,6 +590,6 @@ abort: module_i2c_driver(jc42_driver); -MODULE_AUTHOR("Guenter Roeck "); +MODULE_AUTHOR("Guenter Roeck "); MODULE_DESCRIPTION("JC42 driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/lineage-pem.c b/drivers/hwmon/lineage-pem.c index d264937c7f5e..bd75d2415432 100644 --- a/drivers/hwmon/lineage-pem.c +++ b/drivers/hwmon/lineage-pem.c @@ -567,6 +567,6 @@ static struct i2c_driver pem_driver = { module_i2c_driver(pem_driver); -MODULE_AUTHOR("Guenter Roeck "); +MODULE_AUTHOR("Guenter Roeck "); MODULE_DESCRIPTION("Lineage CPL PEM hardware monitoring driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/ltc4261.c b/drivers/hwmon/ltc4261.c index 069b7d34d8f9..77476a575c4e 100644 --- a/drivers/hwmon/ltc4261.c +++ b/drivers/hwmon/ltc4261.c @@ -292,6 +292,6 @@ static struct i2c_driver ltc4261_driver = { module_i2c_driver(ltc4261_driver); -MODULE_AUTHOR("Guenter Roeck "); +MODULE_AUTHOR("Guenter Roeck "); MODULE_DESCRIPTION("LTC4261 driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/hwmon/max16065.c b/drivers/hwmon/max16065.c index 822261be84dd..019427d7a5fd 100644 --- a/drivers/hwmon/max16065.c +++ b/drivers/hwmon/max16065.c @@ -692,6 +692,6 @@ static struct i2c_driver max16065_driver = { module_i2c_driver(max16065_driver); -MODULE_AUTHOR("Guenter Roeck "); +MODULE_AUTHOR("Guenter Roeck "); MODULE_DESCRIPTION("MAX16065 driver"); MODULE_LICENSE("GPL"); -- cgit v1.2.3-59-g8ed1b From 67de956ff5dc1d4f321e16cfbd63f5be3b691b43 Mon Sep 17 00:00:00 2001 From: Dan Rosenberg Date: Mon, 25 Jun 2012 16:05:27 +0200 Subject: NFC: Prevent multiple buffer overflows in NCI Fix multiple remotely-exploitable stack-based buffer overflows due to the NCI code pulling length fields directly from incoming frames and copying too much data into statically-sized arrays. Signed-off-by: Dan Rosenberg Cc: stable@kernel.org Cc: security@kernel.org Cc: Lauro Ramos Venancio Cc: Aloisio Almeida Jr Cc: Samuel Ortiz Cc: David S. Miller Acked-by: Ilan Elias Signed-off-by: Samuel Ortiz --- net/nfc/nci/ntf.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/net/nfc/nci/ntf.c b/net/nfc/nci/ntf.c index cb2646179e5f..2ab196a9f228 100644 --- a/net/nfc/nci/ntf.c +++ b/net/nfc/nci/ntf.c @@ -106,7 +106,7 @@ static __u8 *nci_extract_rf_params_nfca_passive_poll(struct nci_dev *ndev, nfca_poll->sens_res = __le16_to_cpu(*((__u16 *)data)); data += 2; - nfca_poll->nfcid1_len = *data++; + nfca_poll->nfcid1_len = min_t(__u8, *data++, NFC_NFCID1_MAXSIZE); pr_debug("sens_res 0x%x, nfcid1_len %d\n", nfca_poll->sens_res, nfca_poll->nfcid1_len); @@ -130,7 +130,7 @@ static __u8 *nci_extract_rf_params_nfcb_passive_poll(struct nci_dev *ndev, struct rf_tech_specific_params_nfcb_poll *nfcb_poll, __u8 *data) { - nfcb_poll->sensb_res_len = *data++; + nfcb_poll->sensb_res_len = min_t(__u8, *data++, NFC_SENSB_RES_MAXSIZE); pr_debug("sensb_res_len %d\n", nfcb_poll->sensb_res_len); @@ -145,7 +145,7 @@ static __u8 *nci_extract_rf_params_nfcf_passive_poll(struct nci_dev *ndev, __u8 *data) { nfcf_poll->bit_rate = *data++; - nfcf_poll->sensf_res_len = *data++; + nfcf_poll->sensf_res_len = min_t(__u8, *data++, NFC_SENSF_RES_MAXSIZE); pr_debug("bit_rate %d, sensf_res_len %d\n", nfcf_poll->bit_rate, nfcf_poll->sensf_res_len); @@ -331,7 +331,7 @@ static int nci_extract_activation_params_iso_dep(struct nci_dev *ndev, switch (ntf->activation_rf_tech_and_mode) { case NCI_NFC_A_PASSIVE_POLL_MODE: nfca_poll = &ntf->activation_params.nfca_poll_iso_dep; - nfca_poll->rats_res_len = *data++; + nfca_poll->rats_res_len = min_t(__u8, *data++, 20); pr_debug("rats_res_len %d\n", nfca_poll->rats_res_len); if (nfca_poll->rats_res_len > 0) { memcpy(nfca_poll->rats_res, @@ -341,7 +341,7 @@ static int nci_extract_activation_params_iso_dep(struct nci_dev *ndev, case NCI_NFC_B_PASSIVE_POLL_MODE: nfcb_poll = &ntf->activation_params.nfcb_poll_iso_dep; - nfcb_poll->attrib_res_len = *data++; + nfcb_poll->attrib_res_len = min_t(__u8, *data++, 50); pr_debug("attrib_res_len %d\n", nfcb_poll->attrib_res_len); if (nfcb_poll->attrib_res_len > 0) { memcpy(nfcb_poll->attrib_res, -- cgit v1.2.3-59-g8ed1b From 1f41a6a9947615dca37d80b044ab81616e956a67 Mon Sep 17 00:00:00 2001 From: Henrik Rydberg Date: Mon, 25 Jun 2012 16:55:41 +0200 Subject: HID: Fix the generic Kconfig options The generic HID driver is obviously not a special driver, so move it outside of the special drivers menu. Explain the usage and make the default follow the HID setting. This should simplify migration from older kernels. While at it, remove the redundant HID_SUPPORT option and modify the HID and USB_HID entries to better explain the bus structure. Reported-by: Jan Beulich Signed-off-by: Henrik Rydberg Signed-off-by: Jiri Kosina --- drivers/hid/Kconfig | 43 ++++++++++++++++++++----------------------- drivers/hid/usbhid/Kconfig | 8 ++++---- net/bluetooth/hidp/Kconfig | 2 +- 3 files changed, 25 insertions(+), 28 deletions(-) diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index e9c68fedfcff..3089cd6c5755 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -1,20 +1,11 @@ # # HID driver configuration # -menuconfig HID_SUPPORT - bool "HID Devices" - depends on INPUT - default y - ---help--- - Say Y here to get to see options for various computer-human interface - device drivers. This option alone does not add any kernel code. - - If you say N, all options in this submenu will be skipped and disabled. - -if HID_SUPPORT +menu "HID support" + depends on INPUT config HID - tristate "Generic HID support" + tristate "HID bus support" depends on INPUT default y ---help--- @@ -23,14 +14,17 @@ config HID most commonly used to refer to the USB-HID specification, but other devices (such as, but not strictly limited to, Bluetooth) are designed using HID specification (this involves certain keyboards, - mice, tablets, etc). This option compiles into kernel the generic - HID layer code (parser, usages, etc.), which can then be used by - transport-specific HID implementation (like USB or Bluetooth). + mice, tablets, etc). This option adds the HID bus to the kernel, + together with generic HID layer code. The HID devices are added and + removed from the HID bus by the transport-layer drivers, such as + usbhid (USB_HID) and hidp (BT_HIDP). For docs and specs, see http://www.usb.org/developers/hidpage/ If unsure, say Y. +if HID + config HID_BATTERY_STRENGTH bool "Battery level reporting for HID devices" depends on HID && POWER_SUPPLY && HID = POWER_SUPPLY @@ -59,23 +53,22 @@ config HIDRAW If unsure, say Y. -source "drivers/hid/usbhid/Kconfig" - -menu "Special HID drivers" - depends on HID - config HID_GENERIC tristate "Generic HID driver" depends on HID - default y + default HID ---help--- - Support for generic HID devices. + Support for generic devices on the HID bus. This includes most + keyboards and mice, joysticks, tablets and digitizers. To compile this driver as a module, choose M here: the module will be called hid-generic. If unsure, say Y. +menu "Special HID drivers" + depends on HID + config HID_A4TECH tristate "A4 tech mice" if EXPERT depends on USB_HID @@ -662,4 +655,8 @@ config HID_ZYDACRON endmenu -endif # HID_SUPPORT +endif # HID + +source "drivers/hid/usbhid/Kconfig" + +endmenu diff --git a/drivers/hid/usbhid/Kconfig b/drivers/hid/usbhid/Kconfig index 0f20fd17cf06..0108c5991a04 100644 --- a/drivers/hid/usbhid/Kconfig +++ b/drivers/hid/usbhid/Kconfig @@ -1,13 +1,13 @@ -comment "USB Input Devices" +menu "USB HID support" depends on USB config USB_HID - tristate "USB Human Interface Device (full HID) support" + tristate "USB HID transport layer" default y depends on USB && INPUT select HID ---help--- - Say Y here if you want full HID support to connect USB keyboards, + Say Y here if you want to connect USB keyboards, mice, joysticks, graphic tablets, or any other HID based devices to your computer via USB, as well as Uninterruptible Power Supply (UPS) and monitor control devices. @@ -81,4 +81,4 @@ config USB_MOUSE endmenu - +endmenu diff --git a/net/bluetooth/hidp/Kconfig b/net/bluetooth/hidp/Kconfig index 4deaca78e91e..9332bc7aa851 100644 --- a/net/bluetooth/hidp/Kconfig +++ b/net/bluetooth/hidp/Kconfig @@ -1,6 +1,6 @@ config BT_HIDP tristate "HIDP protocol support" - depends on BT && INPUT && HID_SUPPORT + depends on BT && INPUT select HID help HIDP (Human Interface Device Protocol) is a transport layer -- cgit v1.2.3-59-g8ed1b From 4ad33411308596f2f918603509729922a1ec4411 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Fri, 22 Jun 2012 10:58:06 -0700 Subject: x86, cpufeature: Rename X86_FEATURE_DTS to X86_FEATURE_DTHERM It makes sense to label "Digital Thermal Sensor" as "DTS", but unfortunately the string "dts" was already used for "Debug Store", and /proc/cpuinfo is a user space ABI. Therefore, rename this to "dtherm". This conflict went into mainline via the hwmon tree without any x86 maintainer ack, and without any kind of hint in the subject. a4659053 x86/hwmon: fix initialization of coretemp Reported-by: Jean Delvare Link: http://lkml.kernel.org/r/4FE34BCB.5050305@linux.intel.com Cc: Jan Beulich Cc: v2.6.36..v3.4 Signed-off-by: H. Peter Anvin --- arch/x86/include/asm/cpufeature.h | 2 +- arch/x86/kernel/cpu/scattered.c | 2 +- drivers/hwmon/coretemp.c | 4 ++-- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index 340ee49961a6..f91e80f4f180 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -176,7 +176,7 @@ #define X86_FEATURE_XSAVEOPT (7*32+ 4) /* Optimized Xsave */ #define X86_FEATURE_PLN (7*32+ 5) /* Intel Power Limit Notification */ #define X86_FEATURE_PTS (7*32+ 6) /* Intel Package Thermal Status */ -#define X86_FEATURE_DTS (7*32+ 7) /* Digital Thermal Sensor */ +#define X86_FEATURE_DTHERM (7*32+ 7) /* Digital Thermal Sensor */ #define X86_FEATURE_HW_PSTATE (7*32+ 8) /* AMD HW-PState */ /* Virtualization flags: Linux defined, word 8 */ diff --git a/arch/x86/kernel/cpu/scattered.c b/arch/x86/kernel/cpu/scattered.c index addf9e82a7f2..ee8e9abc859f 100644 --- a/arch/x86/kernel/cpu/scattered.c +++ b/arch/x86/kernel/cpu/scattered.c @@ -31,7 +31,7 @@ void __cpuinit init_scattered_cpuid_features(struct cpuinfo_x86 *c) const struct cpuid_bit *cb; static const struct cpuid_bit __cpuinitconst cpuid_bits[] = { - { X86_FEATURE_DTS, CR_EAX, 0, 0x00000006, 0 }, + { X86_FEATURE_DTHERM, CR_EAX, 0, 0x00000006, 0 }, { X86_FEATURE_IDA, CR_EAX, 1, 0x00000006, 0 }, { X86_FEATURE_ARAT, CR_EAX, 2, 0x00000006, 0 }, { X86_FEATURE_PLN, CR_EAX, 4, 0x00000006, 0 }, diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c index b9d512331ed4..0f52799973d4 100644 --- a/drivers/hwmon/coretemp.c +++ b/drivers/hwmon/coretemp.c @@ -664,7 +664,7 @@ static void __cpuinit get_core_online(unsigned int cpu) * sensors. We check this bit only, all the early CPUs * without thermal sensors will be filtered out. */ - if (!cpu_has(c, X86_FEATURE_DTS)) + if (!cpu_has(c, X86_FEATURE_DTHERM)) return; if (!pdev) { @@ -765,7 +765,7 @@ static struct notifier_block coretemp_cpu_notifier __refdata = { }; static const struct x86_cpu_id coretemp_ids[] = { - { X86_VENDOR_INTEL, X86_FAMILY_ANY, X86_MODEL_ANY, X86_FEATURE_DTS }, + { X86_VENDOR_INTEL, X86_FAMILY_ANY, X86_MODEL_ANY, X86_FEATURE_DTHERM }, {} }; MODULE_DEVICE_TABLE(x86cpu, coretemp_ids); -- cgit v1.2.3-59-g8ed1b From 55f6cb9d0b364e7e8cb65b51193f5e4743c44fde Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Fri, 22 Jun 2012 11:47:15 -0700 Subject: x86, cpufeature: Catch duplicate CPU feature strings We had a case of duplicate CPU feature strings, a user space ABI violation, for almost two years. Make it a build error so that doesn't happen again. Link: http://lkml.kernel.org/r/4FE34BCB.5050305@linux.intel.com Cc: Jan Beulich Cc: Jean Delvare --- arch/x86/kernel/cpu/mkcapflags.pl | 23 ++++++++++++++++++----- 1 file changed, 18 insertions(+), 5 deletions(-) diff --git a/arch/x86/kernel/cpu/mkcapflags.pl b/arch/x86/kernel/cpu/mkcapflags.pl index dfea390e1608..0c5b54919c7b 100644 --- a/arch/x86/kernel/cpu/mkcapflags.pl +++ b/arch/x86/kernel/cpu/mkcapflags.pl @@ -11,22 +11,35 @@ open(OUT, "> $out\0") or die "$0: cannot create: $out: $!\n"; print OUT "#include \n\n"; print OUT "const char * const x86_cap_flags[NCAPINTS*32] = {\n"; +%features = (); +$err = 0; + while (defined($line = )) { if ($line =~ /^\s*\#\s*define\s+(X86_FEATURE_(\S+))\s+(.*)$/) { $macro = $1; - $feature = $2; + $feature = "\L$2"; $tail = $3; if ($tail =~ /\/\*\s*\"([^"]*)\".*\*\//) { - $feature = $1; + $feature = "\L$1"; } - if ($feature ne '') { - printf OUT "\t%-32s = \"%s\",\n", - "[$macro]", "\L$feature"; + next if ($feature eq ''); + + if ($features{$feature}++) { + print STDERR "$in: duplicate feature name: $feature\n"; + $err++; } + printf OUT "\t%-32s = \"%s\",%s\n", "[$macro]", $feature; } } print OUT "};\n"; close(IN); close(OUT); + +if ($err) { + unlink($out); + exit(1); +} + +exit(0); -- cgit v1.2.3-59-g8ed1b From 09682c1dd3820445a27d32dcbeee6a6eafff3dc9 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 25 Jun 2012 17:15:31 +0900 Subject: bug.h: Fix up CONFIG_BUG=n implicit function declarations. Commit 2603efa31a03 ("bug.h: Fix up powerpc build regression") corrected the powerpc build case and extended the __ASSEMBLY__ guards, but it also got caught in pre-processor hell accidentally matching the else case of CONFIG_BUG resulting in the BUG disabled case tripping up on -Werror=implicit-function-declaration. It's not possible to __ASSEMBLY__ guard the entire file as architecture code needs to get at the BUGFLAG_WARNING definition in the GENERIC_BUG case, but the rest of the CONFIG_BUG=y/n case needs to be guarded. Rather than littering endless __ASSEMBLY__ checks in each of the if/else cases we just move the BUGFLAG definitions up under their own GENERIC_BUG test and then shove everything else under one big __ASSEMBLY__ guard. Build tested on all of x86 CONFIG_BUG=y, CONFIG_BUG=n, powerpc (due to it's dependence on BUGFLAG definitions in assembly code), and sh (due to not bringing in linux/kernel.h to satisfy the taint flag definitions used by the generic bug code). Hopefully that's the end of the corner cases and I can abstain from ever having to touch this infernal header ever again. Reported-by: Fengguang Wu Tested-by: Fengguang Wu Acked-by: Randy Dunlap Cc: Arnd Bergmann Signed-off-by: Paul Mundt Signed-off-by: Linus Torvalds --- include/asm-generic/bug.h | 19 +++++++++---------- 1 file changed, 9 insertions(+), 10 deletions(-) diff --git a/include/asm-generic/bug.h b/include/asm-generic/bug.h index 506ec19a3736..7d10f962aa13 100644 --- a/include/asm-generic/bug.h +++ b/include/asm-generic/bug.h @@ -3,10 +3,18 @@ #include +#ifdef CONFIG_GENERIC_BUG +#define BUGFLAG_WARNING (1 << 0) +#define BUGFLAG_TAINT(taint) (BUGFLAG_WARNING | ((taint) << 8)) +#define BUG_GET_TAINT(bug) ((bug)->flags >> 8) +#endif + +#ifndef __ASSEMBLY__ +#include + #ifdef CONFIG_BUG #ifdef CONFIG_GENERIC_BUG -#ifndef __ASSEMBLY__ struct bug_entry { #ifndef CONFIG_GENERIC_BUG_RELATIVE_POINTERS unsigned long bug_addr; @@ -23,17 +31,8 @@ struct bug_entry { #endif unsigned short flags; }; -#endif /* __ASSEMBLY__ */ - -#define BUGFLAG_WARNING (1 << 0) -#define BUGFLAG_TAINT(taint) (BUGFLAG_WARNING | ((taint) << 8)) -#define BUG_GET_TAINT(bug) ((bug)->flags >> 8) - #endif /* CONFIG_GENERIC_BUG */ -#ifndef __ASSEMBLY__ -#include - /* * Don't use BUG() or BUG_ON() unless there's really no way out; one * example might be detecting data structure corruption in the middle -- cgit v1.2.3-59-g8ed1b From eb3979f64d25120d60b9e761a4c58f70b1a02f86 Mon Sep 17 00:00:00 2001 From: Mel Gorman Date: Thu, 21 Jun 2012 11:36:50 +0100 Subject: stable: Allow merging of backports for serious user-visible performance issues Distribution kernel maintainers routinely backport fixes for users that were deemed important but not "something critical" as defined by the rules. To users of these kernels they are very serious and failing to fix them reduces the value of -stable. The problem is that the patches fixing these issues are often subtle and prone to regressions in other ways and need greater care and attention. To combat this, these "serious" backports should have a higher barrier to entry. This patch relaxes the rules to allow a distribution maintainer to merge to -stable a backported patch or small series that fixes a "serious" user-visible performance issue. They should include additional information on the user-visible bug affected and a link to the bugzilla entry if available. The same rules about the patch being already in mainline still apply. Signed-off-by: Mel Gorman Cc: stable Signed-off-by: Greg Kroah-Hartman --- Documentation/stable_kernel_rules.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/Documentation/stable_kernel_rules.txt b/Documentation/stable_kernel_rules.txt index f0ab5cf28fca..4a7b54bd37e8 100644 --- a/Documentation/stable_kernel_rules.txt +++ b/Documentation/stable_kernel_rules.txt @@ -12,6 +12,12 @@ Rules on what kind of patches are accepted, and which ones are not, into the marked CONFIG_BROKEN), an oops, a hang, data corruption, a real security issue, or some "oh, that's not good" issue. In short, something critical. + - Serious issues as reported by a user of a distribution kernel may also + be considered if they fix a notable performance or interactivity issue. + As these fixes are not as obvious and have a higher risk of a subtle + regression they should only be submitted by a distribution kernel + maintainer and include an addendum linking to a bugzilla entry if it + exists and additional information on the user-visible impact. - New device IDs and quirks are also accepted. - No "theoretical race condition" issues, unless an explanation of how the race can be exploited is also provided. -- cgit v1.2.3-59-g8ed1b From 4661e3568a7d14a93d4e428d246cdb86f4bac6e7 Mon Sep 17 00:00:00 2001 From: Alan Stern Date: Fri, 22 Jun 2012 17:12:19 -0400 Subject: printk: fix regression in SYSLOG_ACTION_CLEAR Commit 7ff9554bb578ba02166071d2d487b7fc7d860d62 (printk: convert byte-buffer to variable-length record buffer) introduced a regression by accidentally removing a "break" statement from inside the big switch in printk's do_syslog(). The symptom of this bug is that the "dmesg -C" command doesn't only clear the kernel's log buffer; it also disables console logging. This patch (as1561) fixes the regression by adding the missing "break". Signed-off-by: Alan Stern CC: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- kernel/printk.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/printk.c b/kernel/printk.c index a2276b916769..d6a1412f6b09 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -1040,6 +1040,7 @@ int do_syslog(int type, char __user *buf, int len, bool from_file) /* Clear ring buffer */ case SYSLOG_ACTION_CLEAR: syslog_print_all(NULL, 0, true); + break; /* Disable logging to console */ case SYSLOG_ACTION_CONSOLE_OFF: if (saved_console_loglevel == -1) -- cgit v1.2.3-59-g8ed1b From bed3d9c0b71f9afbfec905cb6db3b9f16be29d4d Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sat, 23 Jun 2012 19:23:31 +0200 Subject: ath9k: fix dynamic WEP related regression commit 7a532fe7131216a02c81a6c1b1f8632da1195a58 ath9k_hw: fix interpretation of the rx KeyMiss flag This commit used the rx key miss indication to detect packets that were passed from the hardware without being decrypted, however it seems that this bit is not only undefined in the static WEP case, but also for dynamically allocated WEP keys. This caused a regression when using WEP-LEAP. This patch fixes the regression by keeping track of which key indexes refer to CCMP keys and only using the key miss indication for those. Reported-by: Stanislaw Gruszka Signed-off-by: Felix Fietkau Cc: stable@vger.kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath.h | 1 + drivers/net/wireless/ath/ath9k/recv.c | 3 ++- drivers/net/wireless/ath/key.c | 4 ++++ 3 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath.h b/drivers/net/wireless/ath/ath.h index c54b7d37bff1..420d69b2674c 100644 --- a/drivers/net/wireless/ath/ath.h +++ b/drivers/net/wireless/ath/ath.h @@ -143,6 +143,7 @@ struct ath_common { u32 keymax; DECLARE_BITMAP(keymap, ATH_KEYMAX); DECLARE_BITMAP(tkip_keymap, ATH_KEYMAX); + DECLARE_BITMAP(ccmp_keymap, ATH_KEYMAX); enum ath_crypt_caps crypt_caps; unsigned int clockrate; diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index e1fcc68124dc..599667ababee 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -822,7 +822,8 @@ static bool ath9k_rx_accept(struct ath_common *common, * descriptor does contain a valid key index. This has been observed * mostly with CCMP encryption. */ - if (rx_stats->rs_keyix == ATH9K_RXKEYIX_INVALID) + if (rx_stats->rs_keyix == ATH9K_RXKEYIX_INVALID || + !test_bit(rx_stats->rs_keyix, common->ccmp_keymap)) rx_stats->rs_status &= ~ATH9K_RXERR_KEYMISS; if (!rx_stats->rs_datalen) { diff --git a/drivers/net/wireless/ath/key.c b/drivers/net/wireless/ath/key.c index 0e81904956cf..5c54aa43ca2d 100644 --- a/drivers/net/wireless/ath/key.c +++ b/drivers/net/wireless/ath/key.c @@ -556,6 +556,9 @@ int ath_key_config(struct ath_common *common, return -EIO; set_bit(idx, common->keymap); + if (key->cipher == WLAN_CIPHER_SUITE_CCMP) + set_bit(idx, common->ccmp_keymap); + if (key->cipher == WLAN_CIPHER_SUITE_TKIP) { set_bit(idx + 64, common->keymap); set_bit(idx, common->tkip_keymap); @@ -582,6 +585,7 @@ void ath_key_delete(struct ath_common *common, struct ieee80211_key_conf *key) return; clear_bit(key->hw_key_idx, common->keymap); + clear_bit(key->hw_key_idx, common->ccmp_keymap); if (key->cipher != WLAN_CIPHER_SUITE_TKIP) return; -- cgit v1.2.3-59-g8ed1b From ff0b804632f025b072f81fc0cd585102b0a43534 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sun, 24 Jun 2012 19:17:00 -0700 Subject: wlcore: drop INET dependency Mainline build reports: warning: (WL12XX) selects WLCORE which has unmet direct dependencies (NETDEVICES && WLAN && WL_TI && GENERIC_HARDIRQS && MAC80211 && INET) The INET dependency was added in commit 3c6af5b54fe74b6e56efadc22927e4055d00e9fc: wl1271_main.c:(.text+0x271052): undefined reference to `unregister_inetaddr_ notifier' wl1271_main.c:(.text+0x2714d7): undefined reference to `register_inetaddr_no tifier' Driver is doing some filtering based on IP addresses... but this driver no longer has that code and it builds fine even when CONFIG_INET is not enabled, so drop that dependency and eliminate the kconfig warning message. Signed-off-by: Randy Dunlap Cc: Luciano Coelho Cc: John W. Linville Acked-by: Luciano Coelho Signed-off-by: John W. Linville --- drivers/net/wireless/ti/wlcore/Kconfig | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/net/wireless/ti/wlcore/Kconfig b/drivers/net/wireless/ti/wlcore/Kconfig index 54156b0b5c2d..d7b907e67170 100644 --- a/drivers/net/wireless/ti/wlcore/Kconfig +++ b/drivers/net/wireless/ti/wlcore/Kconfig @@ -1,7 +1,6 @@ config WLCORE tristate "TI wlcore support" depends on WL_TI && GENERIC_HARDIRQS && MAC80211 - depends on INET select FW_LOADER ---help--- This module contains the main code for TI WLAN chips. It abstracts -- cgit v1.2.3-59-g8ed1b From eac9ac6d1f5d0e9d33e4ded682187b630e7606cd Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Mon, 25 Jun 2012 09:36:41 +0200 Subject: iwlwifi: fix activating inactive stations When authentication/association timed out, the driver would complain bitterly, printing the message ACTIVATE a non DRIVER active station id ... addr ... The cause turns out to be that when the AP station is added but we don't associate, the IWL_STA_UCODE_INPROGRESS is set but never cleared. This then causes iwl_restore_stations() to attempt to resend it because it uses the flag internally and uploads even if it didn't set it itself. To fix this issue and not upload the station again when it has already been removed by mac80211, clear the flag after adding it in case we add it only for association. Cc: stable@vger.kernel.org Reviewed-by: Meenakshi Venkataraman Reviewed-by: Emmanuel Grumbach Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- drivers/net/wireless/iwlwifi/iwl-mac80211.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/wireless/iwlwifi/iwl-mac80211.c b/drivers/net/wireless/iwlwifi/iwl-mac80211.c index 3ee23134c02b..013680332f07 100644 --- a/drivers/net/wireless/iwlwifi/iwl-mac80211.c +++ b/drivers/net/wireless/iwlwifi/iwl-mac80211.c @@ -796,6 +796,18 @@ int iwlagn_mac_sta_state(struct ieee80211_hw *hw, switch (op) { case ADD: ret = iwlagn_mac_sta_add(hw, vif, sta); + if (ret) + break; + /* + * Clear the in-progress flag, the AP station entry was added + * but we'll initialize LQ only when we've associated (which + * would also clear the in-progress flag). This is necessary + * in case we never initialize LQ because association fails. + */ + spin_lock_bh(&priv->sta_lock); + priv->stations[iwl_sta_id(sta)].used &= + ~IWL_STA_UCODE_INPROGRESS; + spin_unlock_bh(&priv->sta_lock); break; case REMOVE: ret = iwlagn_mac_sta_remove(hw, vif, sta); -- cgit v1.2.3-59-g8ed1b From befae82e2906cb7155020876a531b0b8c6c8d8c8 Mon Sep 17 00:00:00 2001 From: David Henningsson Date: Mon, 25 Jun 2012 19:49:28 +0200 Subject: ALSA: hda - Add Realtek ALC280 codec support This chip looks very similar to ALC269 and ALC27* variants. The bug reporter has verified that sound was working after this patch had been applied. Cc: stable@kernel.org BugLink: https://bugs.launchpad.net/bugs/1017017 Tested-by: Richard Crossley Signed-off-by: David Henningsson Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 41475ae0e769..a5534b384609 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -6800,6 +6800,7 @@ static const struct hda_codec_preset snd_hda_preset_realtek[] = { { .id = 0x10ec0272, .name = "ALC272", .patch = patch_alc662 }, { .id = 0x10ec0275, .name = "ALC275", .patch = patch_alc269 }, { .id = 0x10ec0276, .name = "ALC276", .patch = patch_alc269 }, + { .id = 0x10ec0280, .name = "ALC280", .patch = patch_alc269 }, { .id = 0x10ec0861, .rev = 0x100340, .name = "ALC660", .patch = patch_alc861 }, { .id = 0x10ec0660, .name = "ALC660-VD", .patch = patch_alc861vd }, -- cgit v1.2.3-59-g8ed1b From b41772abebc27c61dd578b76da99aa5240b4c99a Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Thu, 21 Jun 2012 20:50:42 -0700 Subject: rcu: Stop rcu_do_batch() from multiplexing the "count" variable Commit b1420f1c (Make rcu_barrier() less disruptive) rearranged the code in rcu_do_batch(), moving the ->qlen manipulation to follow the requeueing of the callbacks. Unfortunately, this rearrangement clobbered the value of the "count" local variable before the value of rdp->qlen was adjusted, resulting in the value of rdp->qlen being inaccurate. This commit therefore introduces an index variable "i", avoiding the inadvertent multiplexing. Signed-off-by: Paul E. McKenney Signed-off-by: Paul E. McKenney Reviewed-by: Josh Triplett --- kernel/rcutree.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/kernel/rcutree.c b/kernel/rcutree.c index 3b0f1337f75b..38ecdda3f55f 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -1530,7 +1530,7 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp) { unsigned long flags; struct rcu_head *next, *list, **tail; - int bl, count, count_lazy; + int bl, count, count_lazy, i; /* If no callbacks are ready, just return.*/ if (!cpu_has_callbacks_ready_to_invoke(rdp)) { @@ -1553,9 +1553,9 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp) rdp->nxtlist = *rdp->nxttail[RCU_DONE_TAIL]; *rdp->nxttail[RCU_DONE_TAIL] = NULL; tail = rdp->nxttail[RCU_DONE_TAIL]; - for (count = RCU_NEXT_SIZE - 1; count >= 0; count--) - if (rdp->nxttail[count] == rdp->nxttail[RCU_DONE_TAIL]) - rdp->nxttail[count] = &rdp->nxtlist; + for (i = RCU_NEXT_SIZE - 1; i >= 0; i--) + if (rdp->nxttail[i] == rdp->nxttail[RCU_DONE_TAIL]) + rdp->nxttail[i] = &rdp->nxtlist; local_irq_restore(flags); /* Invoke callbacks. */ @@ -1583,9 +1583,9 @@ static void rcu_do_batch(struct rcu_state *rsp, struct rcu_data *rdp) if (list != NULL) { *tail = rdp->nxtlist; rdp->nxtlist = list; - for (count = 0; count < RCU_NEXT_SIZE; count++) - if (&rdp->nxtlist == rdp->nxttail[count]) - rdp->nxttail[count] = tail; + for (i = 0; i < RCU_NEXT_SIZE; i++) + if (&rdp->nxtlist == rdp->nxttail[i]) + rdp->nxttail[i] = tail; else break; } -- cgit v1.2.3-59-g8ed1b From fa809e2fd6e317226c046202a88520962672eac0 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 25 Jun 2012 15:37:19 -0700 Subject: ipv6: fib: fix fib dump restart Commit 2bec5a369ee79576a3 (ipv6: fib: fix crash when changing large fib while dumping it) introduced ability to restart the dump at tree root, but failed to skip correctly a count of already dumped entries. Code didn't match Patrick intent. We must skip exactly the number of already dumped entries. Note that like other /proc/net files or netlink producers, we could still dump some duplicates entries. Reported-by: Debabrata Banerjee Reported-by: Josh Hunt Signed-off-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv6/ip6_fib.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 74c21b924a79..608327661960 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -1349,8 +1349,8 @@ static int fib6_walk_continue(struct fib6_walker_t *w) if (w->leaf && fn->fn_flags & RTN_RTINFO) { int err; - if (w->count < w->skip) { - w->count++; + if (w->skip) { + w->skip--; continue; } -- cgit v1.2.3-59-g8ed1b From 437c5b53f63b468996090200df66ef2f3f588c80 Mon Sep 17 00:00:00 2001 From: Neal Cardwell Date: Sat, 23 Jun 2012 19:22:00 +0000 Subject: tcp: heed result of security_inet_conn_request() in tcp_v6_conn_request() If security_inet_conn_request() returns non-zero then TCP/IPv6 should drop the request, just as in TCP/IPv4 and DCCP in both IPv4 and IPv6. Signed-off-by: Neal Cardwell Acked-by: Eric Dumazet Signed-off-by: David S. Miller --- net/ipv6/tcp_ipv6.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 3a9aec29581a..9df64a50b075 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -1212,7 +1212,8 @@ have_isn: tcp_rsk(req)->snt_isn = isn; tcp_rsk(req)->snt_synack = tcp_time_stamp; - security_inet_conn_request(sk, skb, req); + if (security_inet_conn_request(sk, skb, req)) + goto drop_and_release; if (tcp_v6_send_synack(sk, req, (struct request_values *)&tmp_ext, -- cgit v1.2.3-59-g8ed1b From eaa8c5f3cf6555294632c176e81439ca420ad07f Mon Sep 17 00:00:00 2001 From: Sjur Brændeland Date: Sun, 24 Jun 2012 11:01:36 +0000 Subject: caif: Clear shutdown mask to zero at reconnect. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Clear caif sockets's shutdown mask at (re)connect. Signed-off-by: Sjur Brændeland Signed-off-by: David S. Miller --- net/caif/caif_socket.c | 1 + 1 file changed, 1 insertion(+) diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c index fb8944355264..78f1cdad5b33 100644 --- a/net/caif/caif_socket.c +++ b/net/caif/caif_socket.c @@ -220,6 +220,7 @@ static void caif_ctrl_cb(struct cflayer *layr, cfsk_hold, cfsk_put); cf_sk->sk.sk_state = CAIF_CONNECTED; set_tx_flow_on(cf_sk); + cf_sk->sk.sk_shutdown = 0; cf_sk->sk.sk_state_change(&cf_sk->sk); break; -- cgit v1.2.3-59-g8ed1b From 3935600a7f341c00b0def2ed8870669ab2c05493 Mon Sep 17 00:00:00 2001 From: Per Ellefsen Date: Sun, 24 Jun 2012 11:01:37 +0000 Subject: caif-hsi: Bugfix - Piggyback'ed embedded CAIF frame lost MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When receiving a piggyback'ed descriptor containing an embedded frame, but no payload, the embedded frame was lost. Signed-off-by: Per Ellefsen Signed-off-by: Sjur Brændeland Signed-off-by: David S. Miller --- drivers/net/caif/caif_hsi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c index 1520814c77c7..1f52ff3076b4 100644 --- a/drivers/net/caif/caif_hsi.c +++ b/drivers/net/caif/caif_hsi.c @@ -693,8 +693,6 @@ static void cfhsi_rx_done(struct cfhsi *cfhsi) */ memcpy(rx_buf, (u8 *)piggy_desc, CFHSI_DESC_SHORT_SZ); - /* Mark no embedded frame here */ - piggy_desc->offset = 0; if (desc_pld_len == -EPROTO) goto out_of_sync; } @@ -737,6 +735,8 @@ static void cfhsi_rx_done(struct cfhsi *cfhsi) /* Extract any payload in piggyback descriptor. */ if (cfhsi_rx_desc(piggy_desc, cfhsi) < 0) goto out_of_sync; + /* Mark no embedded frame after extracting it */ + piggy_desc->offset = 0; } } -- cgit v1.2.3-59-g8ed1b From 1fdc7630b2cba4a5aeb5fc3834c7189716fdbcb0 Mon Sep 17 00:00:00 2001 From: Sjur Brændeland Date: Sun, 24 Jun 2012 11:01:38 +0000 Subject: caif-hsi: Add missing return in error path MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Fix a missing return, causing access to freed memory. Signed-off-by: Sjur Brændeland Signed-off-by: David S. Miller --- drivers/net/caif/caif_hsi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/caif/caif_hsi.c b/drivers/net/caif/caif_hsi.c index 1f52ff3076b4..4a27adb7ae67 100644 --- a/drivers/net/caif/caif_hsi.c +++ b/drivers/net/caif/caif_hsi.c @@ -1178,6 +1178,7 @@ int cfhsi_probe(struct platform_device *pdev) dev_err(&ndev->dev, "%s: Registration error: %d.\n", __func__, res); free_netdev(ndev); + return -ENODEV; } /* Add CAIF HSI device to list. */ spin_lock(&cfhsi_list_lock); -- cgit v1.2.3-59-g8ed1b From 6de0298ec9c1edaf330b71b57346241ece8f3346 Mon Sep 17 00:00:00 2001 From: Davide Gerhard Date: Mon, 25 Jun 2012 09:04:47 +0200 Subject: ipheth: add support for iPad This adds support for the iPad to the ipheth driver. (product id = 0x129a) Signed-off-by: Davide Gerhard Signed-off-by: David S. Miller --- drivers/net/usb/ipheth.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c index 964031e3da87..a28a983d465e 100644 --- a/drivers/net/usb/ipheth.c +++ b/drivers/net/usb/ipheth.c @@ -59,6 +59,7 @@ #define USB_PRODUCT_IPHONE_3G 0x1292 #define USB_PRODUCT_IPHONE_3GS 0x1294 #define USB_PRODUCT_IPHONE_4 0x1297 +#define USB_PRODUCT_IPAD 0x129a #define USB_PRODUCT_IPHONE_4_VZW 0x129c #define USB_PRODUCT_IPHONE_4S 0x12a0 @@ -100,6 +101,10 @@ static struct usb_device_id ipheth_table[] = { USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4, IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, IPHETH_USBINTF_PROTO) }, + { USB_DEVICE_AND_INTERFACE_INFO( + USB_VENDOR_APPLE, USB_PRODUCT_IPAD, + IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, + IPHETH_USBINTF_PROTO) }, { USB_DEVICE_AND_INTERFACE_INFO( USB_VENDOR_APPLE, USB_PRODUCT_IPHONE_4_VZW, IPHETH_USBINTF_CLASS, IPHETH_USBINTF_SUBCLASS, -- cgit v1.2.3-59-g8ed1b From 5c8e9046662889265c0ff390c144188721cb0844 Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin Date: Mon, 25 Jun 2012 00:24:11 +0000 Subject: net/mlx4_en: Set correct port parameters during device initialization Set valid port parameters: MTU and flow control configuration when configuring the port during HW device initialization, prior to the net device open() being called. Using invalid parameters (such as all zeros) could lead to bad firmware behavior. Signed-off-by: Yevgeny Petrilin Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index 926d8aac941c..a80280eee06e 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -1204,9 +1204,11 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port, en_warn(priv, "Using %d RX rings\n", prof->rx_ring_num); /* Configure port */ + mlx4_en_calc_rx_buf(dev); err = mlx4_SET_PORT_general(mdev->dev, priv->port, - MLX4_EN_MIN_MTU, - 0, 0, 0, 0); + priv->rx_skb_size + ETH_FCS_LEN, + prof->tx_pause, prof->tx_ppp, + prof->rx_pause, prof->rx_ppp); if (err) { en_err(priv, "Failed setting port general configurations " "for port %d, with error %d\n", priv->port, err); -- cgit v1.2.3-59-g8ed1b From 9858d2d1acf82758f779e0756d92a011f1d170b3 Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin Date: Mon, 25 Jun 2012 00:24:12 +0000 Subject: net/mlx4: Use single completion vector after NOP failure Fix a crash at the error flow of NOP command which caused the driver to try and use a completion vector which wasn't allocated. Signed-off-by: Yevgeny Petrilin Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/main.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index ee6f4fe00837..a0313de122de 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -1975,6 +1975,8 @@ slave_start: if (err == -EBUSY && (dev->flags & MLX4_FLAG_MSI_X) && !mlx4_is_mfunc(dev)) { dev->flags &= ~MLX4_FLAG_MSI_X; + dev->caps.num_comp_vectors = 1; + dev->caps.comp_pool = 0; pci_disable_msix(pdev); err = mlx4_setup_hca(dev); } -- cgit v1.2.3-59-g8ed1b From 044ca2a5f2f781c7e4b49c7c0a256913648297ea Mon Sep 17 00:00:00 2001 From: Yevgeny Petrilin Date: Mon, 25 Jun 2012 00:24:13 +0000 Subject: net/mlx4_en: Release QP range in free_resources Add a missing resource release in ring cleanup. Not doing this leaves a range of QPs that are being reserved, and no one can use them. Signed-off-by: Yevgeny Petrilin Signed-off-by: David S. Miller --- drivers/net/ethernet/mellanox/mlx4/en_netdev.c | 12 ++++++++---- drivers/net/ethernet/mellanox/mlx4/mlx4_en.h | 1 + 2 files changed, 9 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c index a80280eee06e..073b85b45fc5 100644 --- a/drivers/net/ethernet/mellanox/mlx4/en_netdev.c +++ b/drivers/net/ethernet/mellanox/mlx4/en_netdev.c @@ -929,15 +929,20 @@ void mlx4_en_free_resources(struct mlx4_en_priv *priv) if (priv->rx_cq[i].buf) mlx4_en_destroy_cq(priv, &priv->rx_cq[i]); } + + if (priv->base_tx_qpn) { + mlx4_qp_release_range(priv->mdev->dev, priv->base_tx_qpn, priv->tx_ring_num); + priv->base_tx_qpn = 0; + } } int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) { struct mlx4_en_port_profile *prof = priv->prof; int i; - int base_tx_qpn, err; + int err; - err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &base_tx_qpn); + err = mlx4_qp_reserve_range(priv->mdev->dev, priv->tx_ring_num, 256, &priv->base_tx_qpn); if (err) { en_err(priv, "failed reserving range for TX rings\n"); return err; @@ -949,7 +954,7 @@ int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) prof->tx_ring_size, i, TX)) goto err; - if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], base_tx_qpn + i, + if (mlx4_en_create_tx_ring(priv, &priv->tx_ring[i], priv->base_tx_qpn + i, prof->tx_ring_size, TXBB_SIZE)) goto err; } @@ -969,7 +974,6 @@ int mlx4_en_alloc_resources(struct mlx4_en_priv *priv) err: en_err(priv, "Failed to allocate NIC resources\n"); - mlx4_qp_release_range(priv->mdev->dev, base_tx_qpn, priv->tx_ring_num); return -ENOMEM; } diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h index 6ae350921b1a..225c20d47900 100644 --- a/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h +++ b/drivers/net/ethernet/mellanox/mlx4/mlx4_en.h @@ -495,6 +495,7 @@ struct mlx4_en_priv { int vids[128]; bool wol; struct device *ddev; + int base_tx_qpn; #ifdef CONFIG_MLX4_EN_DCB struct ieee_ets ets; -- cgit v1.2.3-59-g8ed1b From aa214de0595eecf5079a172a16333fa638b64915 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 25 Jun 2012 00:45:14 +0000 Subject: net: l2tp_eth: fix l2tp_eth_dev_xmit race Its illegal to dereference skb after giving it to l2tp_xmit_skb() as it might be already freed/reused. Signed-off-by: Eric Dumazet Cc: James Chapman Signed-off-by: David S. Miller --- net/l2tp/l2tp_eth.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c index 185f12f4a5fa..c3738f49646a 100644 --- a/net/l2tp/l2tp_eth.c +++ b/net/l2tp/l2tp_eth.c @@ -88,12 +88,12 @@ static int l2tp_eth_dev_xmit(struct sk_buff *skb, struct net_device *dev) struct l2tp_eth *priv = netdev_priv(dev); struct l2tp_session *session = priv->session; - l2tp_xmit_skb(session, skb, session->hdr_len); - dev->stats.tx_bytes += skb->len; dev->stats.tx_packets++; - return 0; + l2tp_xmit_skb(session, skb, session->hdr_len); + + return NETDEV_TX_OK; } static struct net_device_ops l2tp_eth_netdev_ops = { -- cgit v1.2.3-59-g8ed1b From 03e934f620101ca2cfc9383bd76172dd3e1f8567 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Tue, 12 Jun 2012 00:47:58 +0200 Subject: NFC: Return from rawsock_release when sk is NULL Sasha Levin reported following panic : [ 2136.383310] BUG: unable to handle kernel NULL pointer dereference at 00000000000003b0 [ 2136.384022] IP: [] __lock_acquire+0xc0/0x4b0 [ 2136.384022] PGD 131c4067 PUD 11c0c067 PMD 0 [ 2136.388106] Oops: 0000 [#1] PREEMPT SMP DEBUG_PAGEALLOC [ 2136.388106] CPU 1 [ 2136.388106] Pid: 24855, comm: trinity-child1 Tainted: G W 3.5.0-rc2-sasha-00015-g7b268f7 #374 [ 2136.388106] RIP: 0010:[] [] __lock_acquire+0xc0/0x4b0 [ 2136.388106] RSP: 0018:ffff8800130b3ca8 EFLAGS: 00010046 [ 2136.388106] RAX: 0000000000000086 RBX: ffff88001186b000 RCX: 0000000000000000 [ 2136.388106] RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 [ 2136.388106] RBP: ffff8800130b3d08 R08: 0000000000000001 R09: 0000000000000000 [ 2136.388106] R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000002 [ 2136.388106] R13: 00000000000003b0 R14: 0000000000000000 R15: 0000000000000000 [ 2136.388106] FS: 00007fa5b1bd4700(0000) GS:ffff88001b800000(0000) knlGS:0000000000000000 [ 2136.388106] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 2136.388106] CR2: 00000000000003b0 CR3: 0000000011d1f000 CR4: 00000000000406e0 [ 2136.388106] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 2136.388106] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 [ 2136.388106] Process trinity-child1 (pid: 24855, threadinfo ffff8800130b2000, task ffff88001186b000) [ 2136.388106] Stack: [ 2136.388106] ffff8800130b3cd8 ffffffff81121785 ffffffff81236774 000080d000000001 [ 2136.388106] ffff88001b9d6c00 00000000001d6c00 ffffffff130b3d08 ffff88001186b000 [ 2136.388106] 0000000000000000 0000000000000002 0000000000000000 0000000000000000 [ 2136.388106] Call Trace: [ 2136.388106] [] ? sched_clock_local+0x25/0x90 [ 2136.388106] [] ? get_empty_filp+0x74/0x220 [ 2136.388106] [] lock_acquire+0x18a/0x1e0 [ 2136.388106] [] ? rawsock_release+0x4f/0xa0 [ 2136.388106] [] _raw_write_lock_bh+0x40/0x80 [ 2136.388106] [] ? rawsock_release+0x4f/0xa0 [ 2136.388106] [] rawsock_release+0x4f/0xa0 [ 2136.388106] [] sock_release+0x18/0x70 [ 2136.388106] [] sock_close+0x29/0x30 [ 2136.388106] [] __fput+0x11a/0x2c0 [ 2136.388106] [] fput+0x15/0x20 [ 2136.388106] [] sys_accept4+0x1b4/0x200 [ 2136.388106] [] ? _raw_spin_unlock_irq+0x4c/0x80 [ 2136.388106] [] ? _raw_spin_unlock_irq+0x59/0x80 [ 2136.388106] [] ? sysret_check+0x22/0x5d [ 2136.388106] [] sys_accept+0xb/0x10 [ 2136.388106] [] system_call_fastpath+0x16/0x1b [ 2136.388106] Code: ec 04 00 0f 85 ea 03 00 00 be d5 0b 00 00 48 c7 c7 8a c1 40 84 e8 b1 a5 f8 ff 31 c0 e9 d4 03 00 00 66 2e 0f 1f 84 00 00 00 00 00 <49> 81 7d 00 60 73 5e 85 b8 01 00 00 00 44 0f 44 e0 83 fe 01 77 [ 2136.388106] RIP [] __lock_acquire+0xc0/0x4b0 [ 2136.388106] RSP [ 2136.388106] CR2: 00000000000003b0 [ 2136.388106] ---[ end trace 6d450e935ee18982 ]--- [ 2136.388106] Kernel panic - not syncing: Fatal exception in interrupt rawsock_release() should test if sock->sk is NULL before calling sock_orphan()/sock_put() Reported-by: Sasha Levin Tested-by: Sasha Levin Cc: stable@kernel.org Signed-off-by: Eric Dumazet Signed-off-by: Samuel Ortiz --- net/nfc/rawsock.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/nfc/rawsock.c b/net/nfc/rawsock.c index ec1134c9e07f..8b8a6a2b2bad 100644 --- a/net/nfc/rawsock.c +++ b/net/nfc/rawsock.c @@ -54,7 +54,10 @@ static int rawsock_release(struct socket *sock) { struct sock *sk = sock->sk; - pr_debug("sock=%p\n", sock); + pr_debug("sock=%p sk=%p\n", sock, sk); + + if (!sk) + return 0; sock_orphan(sk); sock_put(sk); -- cgit v1.2.3-59-g8ed1b From 8a8e28b8e2c27362f24cf06513c05d5e3a304e03 Mon Sep 17 00:00:00 2001 From: "alex.bluesman.smirnov@gmail.com" Date: Mon, 25 Jun 2012 03:30:13 +0000 Subject: mac802154: add missed braces Add missed braces after 'if' operator. Signed-off-by: Alexander Smirnov Signed-off-by: David S. Miller --- net/mac802154/tx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/net/mac802154/tx.c b/net/mac802154/tx.c index 8781d8f904d9..434b6873b352 100644 --- a/net/mac802154/tx.c +++ b/net/mac802154/tx.c @@ -83,9 +83,10 @@ netdev_tx_t mac802154_tx(struct mac802154_priv *priv, struct sk_buff *skb, { struct xmit_work *work; - if (!(priv->phy->channels_supported[page] & (1 << chan))) + if (!(priv->phy->channels_supported[page] & (1 << chan))) { WARN_ON(1); return NETDEV_TX_OK; + } if (!(priv->hw.flags & IEEE802154_HW_OMIT_CKSUM)) { u16 crc = crc_ccitt(0, skb->data, skb->len); -- cgit v1.2.3-59-g8ed1b From 3a35fc3a13333e7c137de82d8bf12bbc18639633 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Fri, 11 May 2012 10:41:18 +0200 Subject: clk: SPEAr600: Fix ethernet clock name for DT based probing Signed-off-by: Stefan Roese Cc: Viresh Kumar Cc: Viresh Kumar Signed-off-by: Mike Turquette --- drivers/clk/spear/spear6xx_clock.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/spear/spear6xx_clock.c b/drivers/clk/spear/spear6xx_clock.c index 554d64b062a1..61026ae564ab 100644 --- a/drivers/clk/spear/spear6xx_clock.c +++ b/drivers/clk/spear/spear6xx_clock.c @@ -298,7 +298,7 @@ void __init spear6xx_clk_init(void) clk = clk_register_gate(NULL, "gmac_clk", "ahb_clk", 0, PERIP1_CLK_ENB, GMAC_CLK_ENB, 0, &_lock); - clk_register_clkdev(clk, NULL, "gmac"); + clk_register_clkdev(clk, NULL, "e0800000.ethernet"); clk = clk_register_gate(NULL, "i2c_clk", "ahb_clk", 0, PERIP1_CLK_ENB, I2C_CLK_ENB, 0, &_lock); -- cgit v1.2.3-59-g8ed1b From 7975059db572eb47f0fb272a62afeae272a4b209 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Wed, 6 Jun 2012 14:41:31 +0530 Subject: clk: Allow late cache allocation for clk->parents Parent clocks for muxes are cached in clk->parents to avoid frequent lookups, however the cache allocation happens only during clock registeration and later clk_set_parent() assumes a cache space available and allocated. This is not entirely true for platforms which do early clock registerations wherein the cache allocation using kzalloc could fail during clock registeration. Allow cache allocation to happen later as part of clk_set_parent() to help such cases and avoid crashes assuming a cache being available. While here also replace existing kmalloc() with kzalloc() in the file. Signed-off-by: Rajendra Nayak Signed-off-by: Mike Turquette Cc: stable@kernel.org --- drivers/clk/clk.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index 687b00d67c8a..df89cbfc1bd0 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -999,7 +999,7 @@ static struct clk *__clk_init_parent(struct clk *clk) if (!clk->parents) clk->parents = - kmalloc((sizeof(struct clk*) * clk->num_parents), + kzalloc((sizeof(struct clk*) * clk->num_parents), GFP_KERNEL); if (!clk->parents) @@ -1065,9 +1065,13 @@ static int __clk_set_parent(struct clk *clk, struct clk *parent) old_parent = clk->parent; /* find index of new parent clock using cached parent ptrs */ - for (i = 0; i < clk->num_parents; i++) - if (clk->parents[i] == parent) - break; + if (clk->parents) + for (i = 0; i < clk->num_parents; i++) + if (clk->parents[i] == parent) + break; + else + clk->parents = kzalloc((sizeof(struct clk*) * clk->num_parents), + GFP_KERNEL); /* * find index of new parent clock using string name comparison @@ -1076,7 +1080,8 @@ static int __clk_set_parent(struct clk *clk, struct clk *parent) if (i == clk->num_parents) for (i = 0; i < clk->num_parents; i++) if (!strcmp(clk->parent_names[i], parent->name)) { - clk->parents[i] = __clk_lookup(parent->name); + if (clk->parents) + clk->parents[i] = __clk_lookup(parent->name); break; } -- cgit v1.2.3-59-g8ed1b From bf47b4fd8f9f81cd5ce40e1945c6334d088226d1 Mon Sep 17 00:00:00 2001 From: Pawel Moll Date: Fri, 8 Jun 2012 14:04:06 +0100 Subject: clk: Check parent for NULL in clk_change_rate clk_change_rate() is accessing parent's rate without checking if the parent exists at all. In case of root clocks this will cause NULL pointer dereference. This patch follows what clk_calc_new_rates() does in such situation. Signed-off-by: Pawel Moll Signed-off-by: Mike Turquette Cc: stable@kernel.org --- drivers/clk/clk.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index df89cbfc1bd0..dcbe05616090 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -850,18 +850,21 @@ static void clk_change_rate(struct clk *clk) { struct clk *child; unsigned long old_rate; + unsigned long best_parent_rate = 0; struct hlist_node *tmp; old_rate = clk->rate; + if (clk->parent) + best_parent_rate = clk->parent->rate; + if (clk->ops->set_rate) - clk->ops->set_rate(clk->hw, clk->new_rate, clk->parent->rate); + clk->ops->set_rate(clk->hw, clk->new_rate, best_parent_rate); if (clk->ops->recalc_rate) - clk->rate = clk->ops->recalc_rate(clk->hw, - clk->parent->rate); + clk->rate = clk->ops->recalc_rate(clk->hw, best_parent_rate); else - clk->rate = clk->parent->rate; + clk->rate = best_parent_rate; if (clk->notifier_count && old_rate != clk->rate) __clk_notify(clk, POST_RATE_CHANGE, old_rate, clk->rate); -- cgit v1.2.3-59-g8ed1b From d6dc55c1857ff1911780881b74537785d8a4e6e1 Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Fri, 22 Jun 2012 10:13:20 +0800 Subject: clk: mxs: fix ref_io clock definition The definition of clocks ref_io0 and ref_io1 were inverted. It causes a mmc regression on some boards right away. Fix the regression by correcting the ref_io clock definition. Reported-by: Maxime Ripard Signed-off-by: Shawn Guo Signed-off-by: Mike Turquette --- drivers/clk/mxs/clk-imx28.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c index 2826a2606a29..17e85a1f28ab 100644 --- a/drivers/clk/mxs/clk-imx28.c +++ b/drivers/clk/mxs/clk-imx28.c @@ -245,8 +245,8 @@ int __init mx28_clocks_init(void) clks[pll2] = mxs_clk_pll("pll2", "ref_xtal", PLL2CTRL0, 23, 50000000); clks[ref_cpu] = mxs_clk_ref("ref_cpu", "pll0", FRAC0, 0); clks[ref_emi] = mxs_clk_ref("ref_emi", "pll0", FRAC0, 1); - clks[ref_io0] = mxs_clk_ref("ref_io0", "pll0", FRAC0, 2); - clks[ref_io1] = mxs_clk_ref("ref_io1", "pll0", FRAC0, 3); + clks[ref_io1] = mxs_clk_ref("ref_io1", "pll0", FRAC0, 2); + clks[ref_io0] = mxs_clk_ref("ref_io0", "pll0", FRAC0, 3); clks[ref_pix] = mxs_clk_ref("ref_pix", "pll0", FRAC1, 0); clks[ref_hsadc] = mxs_clk_ref("ref_hsadc", "pll0", FRAC1, 1); clks[ref_gpmi] = mxs_clk_ref("ref_gpmi", "pll0", FRAC1, 2); -- cgit v1.2.3-59-g8ed1b From d03ac61daa8d4d17cd83a5ab98e85b616b90c7ac Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Thu, 21 Jun 2012 20:04:25 +0200 Subject: clk: mxs: fix clock lookup after freeing init memory The struct clk_lookup are marked as __initdata, resulting in being removed from memory after the kernel finished booting. However this leads to a NULL pointer de-ref if loading a module which uses clk_get. This patch removes the __initdata from the struct clk_lookup. Signed-off-by: Marc Kleine-Budde Signed-off-by: Shawn Guo Signed-off-by: Mike Turquette --- drivers/clk/mxs/clk-imx23.c | 12 ++++++------ drivers/clk/mxs/clk-imx28.c | 28 ++++++++++++++-------------- 2 files changed, 20 insertions(+), 20 deletions(-) diff --git a/drivers/clk/mxs/clk-imx23.c b/drivers/clk/mxs/clk-imx23.c index f7be225f544c..db2391c054ee 100644 --- a/drivers/clk/mxs/clk-imx23.c +++ b/drivers/clk/mxs/clk-imx23.c @@ -71,7 +71,7 @@ static void __init clk_misc_init(void) __mxs_setl(30 << BP_FRAC_IOFRAC, FRAC); } -static struct clk_lookup uart_lookups[] __initdata = { +static struct clk_lookup uart_lookups[] = { { .dev_id = "duart", }, { .dev_id = "mxs-auart.0", }, { .dev_id = "mxs-auart.1", }, @@ -80,31 +80,31 @@ static struct clk_lookup uart_lookups[] __initdata = { { .dev_id = "80070000.serial", }, }; -static struct clk_lookup hbus_lookups[] __initdata = { +static struct clk_lookup hbus_lookups[] = { { .dev_id = "imx23-dma-apbh", }, { .dev_id = "80004000.dma-apbh", }, }; -static struct clk_lookup xbus_lookups[] __initdata = { +static struct clk_lookup xbus_lookups[] = { { .dev_id = "duart", .con_id = "apb_pclk"}, { .dev_id = "80070000.serial", .con_id = "apb_pclk"}, { .dev_id = "imx23-dma-apbx", }, { .dev_id = "80024000.dma-apbx", }, }; -static struct clk_lookup ssp_lookups[] __initdata = { +static struct clk_lookup ssp_lookups[] = { { .dev_id = "imx23-mmc.0", }, { .dev_id = "imx23-mmc.1", }, { .dev_id = "80010000.ssp", }, { .dev_id = "80034000.ssp", }, }; -static struct clk_lookup lcdif_lookups[] __initdata = { +static struct clk_lookup lcdif_lookups[] = { { .dev_id = "imx23-fb", }, { .dev_id = "80030000.lcdif", }, }; -static struct clk_lookup gpmi_lookups[] __initdata = { +static struct clk_lookup gpmi_lookups[] = { { .dev_id = "imx23-gpmi-nand", }, { .dev_id = "8000c000.gpmi", }, }; diff --git a/drivers/clk/mxs/clk-imx28.c b/drivers/clk/mxs/clk-imx28.c index 17e85a1f28ab..7fad6c8c13d2 100644 --- a/drivers/clk/mxs/clk-imx28.c +++ b/drivers/clk/mxs/clk-imx28.c @@ -120,7 +120,7 @@ static void __init clk_misc_init(void) writel_relaxed(val, FRAC0); } -static struct clk_lookup uart_lookups[] __initdata = { +static struct clk_lookup uart_lookups[] = { { .dev_id = "duart", }, { .dev_id = "mxs-auart.0", }, { .dev_id = "mxs-auart.1", }, @@ -135,71 +135,71 @@ static struct clk_lookup uart_lookups[] __initdata = { { .dev_id = "80074000.serial", }, }; -static struct clk_lookup hbus_lookups[] __initdata = { +static struct clk_lookup hbus_lookups[] = { { .dev_id = "imx28-dma-apbh", }, { .dev_id = "80004000.dma-apbh", }, }; -static struct clk_lookup xbus_lookups[] __initdata = { +static struct clk_lookup xbus_lookups[] = { { .dev_id = "duart", .con_id = "apb_pclk"}, { .dev_id = "80074000.serial", .con_id = "apb_pclk"}, { .dev_id = "imx28-dma-apbx", }, { .dev_id = "80024000.dma-apbx", }, }; -static struct clk_lookup ssp0_lookups[] __initdata = { +static struct clk_lookup ssp0_lookups[] = { { .dev_id = "imx28-mmc.0", }, { .dev_id = "80010000.ssp", }, }; -static struct clk_lookup ssp1_lookups[] __initdata = { +static struct clk_lookup ssp1_lookups[] = { { .dev_id = "imx28-mmc.1", }, { .dev_id = "80012000.ssp", }, }; -static struct clk_lookup ssp2_lookups[] __initdata = { +static struct clk_lookup ssp2_lookups[] = { { .dev_id = "imx28-mmc.2", }, { .dev_id = "80014000.ssp", }, }; -static struct clk_lookup ssp3_lookups[] __initdata = { +static struct clk_lookup ssp3_lookups[] = { { .dev_id = "imx28-mmc.3", }, { .dev_id = "80016000.ssp", }, }; -static struct clk_lookup lcdif_lookups[] __initdata = { +static struct clk_lookup lcdif_lookups[] = { { .dev_id = "imx28-fb", }, { .dev_id = "80030000.lcdif", }, }; -static struct clk_lookup gpmi_lookups[] __initdata = { +static struct clk_lookup gpmi_lookups[] = { { .dev_id = "imx28-gpmi-nand", }, { .dev_id = "8000c000.gpmi", }, }; -static struct clk_lookup fec_lookups[] __initdata = { +static struct clk_lookup fec_lookups[] = { { .dev_id = "imx28-fec.0", }, { .dev_id = "imx28-fec.1", }, { .dev_id = "800f0000.ethernet", }, { .dev_id = "800f4000.ethernet", }, }; -static struct clk_lookup can0_lookups[] __initdata = { +static struct clk_lookup can0_lookups[] = { { .dev_id = "flexcan.0", }, { .dev_id = "80032000.can", }, }; -static struct clk_lookup can1_lookups[] __initdata = { +static struct clk_lookup can1_lookups[] = { { .dev_id = "flexcan.1", }, { .dev_id = "80034000.can", }, }; -static struct clk_lookup saif0_lookups[] __initdata = { +static struct clk_lookup saif0_lookups[] = { { .dev_id = "mxs-saif.0", }, { .dev_id = "80042000.saif", }, }; -static struct clk_lookup saif1_lookups[] __initdata = { +static struct clk_lookup saif1_lookups[] = { { .dev_id = "mxs-saif.1", }, { .dev_id = "80046000.saif", }, }; -- cgit v1.2.3-59-g8ed1b From bb44c30e53053c653302b53c8671c3c5ca62e881 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Tue, 26 Jun 2012 03:29:57 -0700 Subject: ARM: OMAP2+: nand: fix build error when CONFIG_MTD_ONENAND_OMAP2=n MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit commit 8259573b (ARM: OMAP2+: nand: Make board_onenand_init() visible to board code) broke the build for configs with OneNAND disabled. By removing the static in the header file, it created a duplicate definition in the .c and the .h files, resuling in a build error: /work/kernel/omap/dev/arch/arm/mach-omap2/board-flash.c:102:111: error: redefinition of 'board_onenand_init' /work/kernel/omap/dev/arch/arm/mach-omap2/board-flash.h:56:51: note: previous definition of 'board_onenand_init' was here make[2]: *** [arch/arm/mach-omap2/board-flash.o] Error 1 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [arch/arm/mach-omap2] Error 2 make: *** [sub-make] Error 2 Fix this by removing the duplicate dummy entry from the C file. Cc: Enric Balletbò i Serra Cc: Javier Martinez Canillas Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-flash.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/arch/arm/mach-omap2/board-flash.c b/arch/arm/mach-omap2/board-flash.c index 70a81f900bb5..53c39d239d6e 100644 --- a/arch/arm/mach-omap2/board-flash.c +++ b/arch/arm/mach-omap2/board-flash.c @@ -97,11 +97,6 @@ __init board_onenand_init(struct mtd_partition *onenand_parts, gpmc_onenand_init(&board_onenand_data); } -#else -void -__init board_onenand_init(struct mtd_partition *nor_parts, u8 nr_parts, u8 cs) -{ -} #endif /* CONFIG_MTD_ONENAND_OMAP2 || CONFIG_MTD_ONENAND_OMAP2_MODULE */ #if defined(CONFIG_MTD_NAND_OMAP2) || \ -- cgit v1.2.3-59-g8ed1b From 9bd0c15fcfb42f6245447c53347d65ad9e72080b Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 26 Jun 2012 12:12:30 +1000 Subject: drm/nouveau/fbcon: using nv_two_heads is not a good idea nv_two_heads() was never meant to be used outside of pre-nv50 code. The code checks for >= NV_10 for 2 CRTCs, then downgrades a few specific chipsets to 1 CRTC based on (pci_device & 0x0ff0). The breakage example seen is on GTX 560Ti, with a pciid of 0x1200, which gets detected as an NV20 (0x020x) with 1 CRTC by nv_two_heads(), causing memory corruption because there's actually 2 CRTCs.. This switches fbcon to use the CRTC count directly from the mode_config structure, which will also fix the same issue on Kepler boards which have 4 CRTCs. Signed-off-by: Ben Skeggs Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/nouveau/nouveau_fbcon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c index 153b9a15469b..1074bc5dd418 100644 --- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c +++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c @@ -467,7 +467,7 @@ int nouveau_fbcon_init(struct drm_device *dev) nfbdev->helper.funcs = &nouveau_fbcon_helper_funcs; ret = drm_fb_helper_init(dev, &nfbdev->helper, - nv_two_heads(dev) ? 2 : 1, 4); + dev->mode_config.num_crtc, 4); if (ret) { kfree(nfbdev); return ret; -- cgit v1.2.3-59-g8ed1b From ee48df57c920ab876dd8cf0dcfe5b8893b98e934 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 26 Jun 2012 14:54:32 +0200 Subject: ALSA: hda - Fix memory leaks in Realtek & Conexant codec parsers When moved to the helper code, forgot to release the verb arrays. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_auto_parser.c | 1 - sound/pci/hda/hda_auto_parser.h | 10 ++++++++++ sound/pci/hda/patch_conexant.c | 5 ++++- sound/pci/hda/patch_realtek.c | 2 ++ 4 files changed, 16 insertions(+), 2 deletions(-) diff --git a/sound/pci/hda/hda_auto_parser.c b/sound/pci/hda/hda_auto_parser.c index 6e9ef3e25093..f7520b9f909c 100644 --- a/sound/pci/hda/hda_auto_parser.c +++ b/sound/pci/hda/hda_auto_parser.c @@ -618,7 +618,6 @@ int snd_hda_gen_add_verbs(struct hda_gen_spec *spec, const struct hda_verb *list) { const struct hda_verb **v; - snd_array_init(&spec->verbs, sizeof(struct hda_verb *), 8); v = snd_array_new(&spec->verbs); if (!v) return -ENOMEM; diff --git a/sound/pci/hda/hda_auto_parser.h b/sound/pci/hda/hda_auto_parser.h index 2a7889dfbd1b..632ad0ad3007 100644 --- a/sound/pci/hda/hda_auto_parser.h +++ b/sound/pci/hda/hda_auto_parser.h @@ -157,4 +157,14 @@ void snd_hda_pick_fixup(struct hda_codec *codec, const struct snd_pci_quirk *quirk, const struct hda_fixup *fixlist); +static inline void snd_hda_gen_init(struct hda_gen_spec *spec) +{ + snd_array_init(&spec->verbs, sizeof(struct hda_verb *), 8); +} + +static inline void snd_hda_gen_free(struct hda_gen_spec *spec) +{ + snd_array_free(&spec->verbs); +} + #endif /* __SOUND_HDA_AUTO_PARSER_H */ diff --git a/sound/pci/hda/patch_conexant.c b/sound/pci/hda/patch_conexant.c index 2af0868f78ad..2bf99fc1cbf2 100644 --- a/sound/pci/hda/patch_conexant.c +++ b/sound/pci/hda/patch_conexant.c @@ -445,8 +445,10 @@ static int conexant_init(struct hda_codec *codec) static void conexant_free(struct hda_codec *codec) { + struct conexant_spec *spec = codec->spec; + snd_hda_gen_free(&spec->gen); snd_hda_detach_beep_device(codec); - kfree(codec->spec); + kfree(spec); } static const struct snd_kcontrol_new cxt_capture_mixers[] = { @@ -4498,6 +4500,7 @@ static int patch_conexant_auto(struct hda_codec *codec) if (!spec) return -ENOMEM; codec->spec = spec; + snd_hda_gen_init(&spec->gen); switch (codec->vendor_id) { case 0x14f15045: diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index a5534b384609..5ccf10a4d593 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -2289,6 +2289,7 @@ static void alc_free(struct hda_codec *codec) alc_shutup(codec); alc_free_kctls(codec); alc_free_bind_ctls(codec); + snd_hda_gen_free(&spec->gen); kfree(spec); snd_hda_detach_beep_device(codec); } @@ -4253,6 +4254,7 @@ static int alc_alloc_spec(struct hda_codec *codec, hda_nid_t mixer_nid) return -ENOMEM; codec->spec = spec; spec->mixer_nid = mixer_nid; + snd_hda_gen_init(&spec->gen); err = alc_codec_rename_from_preset(codec); if (err < 0) { -- cgit v1.2.3-59-g8ed1b From 59cad16bc6deb85bd2a464da92bbaae289f0286f Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 26 Jun 2012 15:00:20 +0200 Subject: ALSA: hda - Fix memory leaks at module unload Some caches aren't released properly at module unloading time. Cc: [v3.4+] Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 7504e62188d6..854dd0c25f89 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -1184,6 +1184,7 @@ static void snd_hda_codec_free(struct hda_codec *codec) { if (!codec) return; + snd_hda_jack_tbl_clear(codec); restore_init_pincfgs(codec); #ifdef CONFIG_SND_HDA_POWER_SAVE cancel_delayed_work(&codec->power_work); @@ -1192,6 +1193,7 @@ static void snd_hda_codec_free(struct hda_codec *codec) list_del(&codec->list); snd_array_free(&codec->mixers); snd_array_free(&codec->nids); + snd_array_free(&codec->cvt_setups); snd_array_free(&codec->conn_lists); snd_array_free(&codec->spdif_out); codec->bus->caddr_tbl[codec->addr] = NULL; -- cgit v1.2.3-59-g8ed1b From 09a6071bfe0ecf41376ad6a143508c8b2f93f52b Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 26 Jun 2012 15:01:33 +0200 Subject: ALSA: hda - Initialize caches at codec reconfiguration Better to clean up the caches for avoiding inconsistent codec state after the reconfiguration. Signed-off-by: Takashi Iwai --- sound/pci/hda/hda_codec.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/sound/pci/hda/hda_codec.c b/sound/pci/hda/hda_codec.c index 854dd0c25f89..51cb2a2e4fce 100644 --- a/sound/pci/hda/hda_codec.c +++ b/sound/pci/hda/hda_codec.c @@ -2335,6 +2335,8 @@ int snd_hda_codec_reset(struct hda_codec *codec) /* free only driver_pins so that init_pins + user_pins are restored */ snd_array_free(&codec->driver_pins); restore_pincfgs(codec); + snd_array_free(&codec->cvt_setups); + snd_array_free(&codec->spdif_out); codec->num_pcms = 0; codec->pcm_info = NULL; codec->preset = NULL; -- cgit v1.2.3-59-g8ed1b From 1b6b7c9ff3514772958c075f8c89e42dddf6a4d8 Mon Sep 17 00:00:00 2001 From: "H. Peter Anvin" Date: Tue, 26 Jun 2012 07:58:23 -0700 Subject: x86, cpufeature: Remove stray %s, add -w to mkcapflags.pl There was a stray %s left from testing, remove it. Add -w to the #! line (which is parsed by Perl even if the Perl interpreter is invoked explicitly on the command line) to catch these kinds of errors in the future. Reported-by: Jean Delvare Link: http://lkml.kernel.org/r/20120626143246.0c9bf301@endymion.delvare Signed-off-by: H. Peter Anvin --- arch/x86/kernel/cpu/mkcapflags.pl | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/x86/kernel/cpu/mkcapflags.pl b/arch/x86/kernel/cpu/mkcapflags.pl index 0c5b54919c7b..c7b3fe2d72e0 100644 --- a/arch/x86/kernel/cpu/mkcapflags.pl +++ b/arch/x86/kernel/cpu/mkcapflags.pl @@ -1,4 +1,4 @@ -#!/usr/bin/perl +#!/usr/bin/perl -w # # Generate the x86_cap_flags[] array from include/asm-x86/cpufeature.h # @@ -29,7 +29,7 @@ while (defined($line = )) { print STDERR "$in: duplicate feature name: $feature\n"; $err++; } - printf OUT "\t%-32s = \"%s\",%s\n", "[$macro]", $feature; + printf OUT "\t%-32s = \"%s\",\n", "[$macro]", $feature; } } print OUT "};\n"; -- cgit v1.2.3-59-g8ed1b From 6e1c39c6b00d9141a82c231ba7c5e5b1716974b2 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 26 Jun 2012 17:35:10 +0200 Subject: ALSA: hda - Fix power-map regression for HP dv6 & co The recent fix for power-map controls (commit b0791dda813) caused regressions on some other HP laptops. They have fixed pins but these pins are exposed as jack-detectable. Thus the driver tries to control the power-map dynamically per jack detection where it never gets on. This patch adds the check of connection and it assumes the no jack detection is available for fixed pins no matter what pin capability says. BugLink: http://bugs.launchpad.net/bugs/1013183 Reported-by: Luis Henriques Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_sigmatel.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/sound/pci/hda/patch_sigmatel.c b/sound/pci/hda/patch_sigmatel.c index 7db8228f1b88..07675282015a 100644 --- a/sound/pci/hda/patch_sigmatel.c +++ b/sound/pci/hda/patch_sigmatel.c @@ -4367,7 +4367,7 @@ static int stac92xx_init(struct hda_codec *codec) AC_PINCTL_IN_EN); for (i = 0; i < spec->num_pwrs; i++) { hda_nid_t nid = spec->pwr_nids[i]; - int pinctl, def_conf; + unsigned int pinctl, def_conf; def_conf = snd_hda_codec_get_pincfg(codec, nid); def_conf = get_defcfg_connect(def_conf); @@ -4376,6 +4376,11 @@ static int stac92xx_init(struct hda_codec *codec) stac_toggle_power_map(codec, nid, 0); continue; } + if (def_conf == AC_JACK_PORT_FIXED) { + /* no need for jack detection for fixed pins */ + stac_toggle_power_map(codec, nid, 1); + continue; + } /* power on when no jack detection is available */ /* or when the VREF is used for controlling LED */ if (!spec->hp_detect || -- cgit v1.2.3-59-g8ed1b From 4069d6f86bebce1a1e3456ef721511b4b81958f8 Mon Sep 17 00:00:00 2001 From: Mattia Dongili Date: Sat, 9 Jun 2012 13:18:08 +0900 Subject: sony-laptop: use an enum for SNC event types Signed-off-by: Mattia Dongili Signed-off-by: Matthew Garrett --- drivers/platform/x86/sony-laptop.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index 210d4ae547c2..615ab06b6cd3 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -1172,6 +1172,10 @@ static int sony_nc_hotkeys_decode(u32 event, unsigned int handle) /* * ACPI callbacks */ +enum event_types { + HOTKEY = 1, + KILLSWITCH +}; static void sony_nc_notify(struct acpi_device *device, u32 event) { u32 real_ev = event; @@ -1196,7 +1200,7 @@ static void sony_nc_notify(struct acpi_device *device, u32 event) /* hotkey event */ case 0x0100: case 0x0127: - ev_type = 1; + ev_type = HOTKEY; real_ev = sony_nc_hotkeys_decode(event, handle); if (real_ev > 0) @@ -1216,7 +1220,7 @@ static void sony_nc_notify(struct acpi_device *device, u32 event) * update the rfkill device status when the * switch is moved. */ - ev_type = 2; + ev_type = KILLSWITCH; sony_call_snc_handle(handle, 0x0100, &result); real_ev = result & 0x03; @@ -1238,7 +1242,7 @@ static void sony_nc_notify(struct acpi_device *device, u32 event) } else { /* old style event */ - ev_type = 1; + ev_type = HOTKEY; sony_laptop_report_input_event(real_ev); } -- cgit v1.2.3-59-g8ed1b From bb384b5295323ed58260aeaff22d8bbe32988396 Mon Sep 17 00:00:00 2001 From: Marco Chiappero Date: Sat, 9 Jun 2012 13:18:09 +0900 Subject: sony-laptop: notify userspace of GFX switch position changes Some Vaios come with both integrated and discrete graphics, plus a switch for choosing one of the two. When the switch position is changed, a notification is generated. Signed-off-by: Marco Chiappero Signed-off-by: Mattia Dongili Signed-off-by: Matthew Garrett --- drivers/platform/x86/sony-laptop.c | 21 ++++++++++++++++++++- 1 file changed, 20 insertions(+), 1 deletion(-) diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index 615ab06b6cd3..4f42e5661bf5 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -1174,7 +1174,8 @@ static int sony_nc_hotkeys_decode(u32 event, unsigned int handle) */ enum event_types { HOTKEY = 1, - KILLSWITCH + KILLSWITCH, + GFX_SWITCH }; static void sony_nc_notify(struct acpi_device *device, u32 event) { @@ -1230,6 +1231,24 @@ static void sony_nc_notify(struct acpi_device *device, u32 event) break; + case 0x0128: + case 0x0146: + /* Hybrid GFX switching */ + sony_call_snc_handle(handle, 0x0000, &result); + dprintk("GFX switch event received (reason: %s)\n", + (result & 0x01) ? + "switch change" : "unknown"); + + /* verify the switch state + * 1: discrete GFX + * 0: integrated GFX + */ + sony_call_snc_handle(handle, 0x0100, &result); + + ev_type = GFX_SWITCH; + real_ev = result & 0xff; + break; + default: dprintk("Unknown event 0x%x for handle 0x%x\n", event, handle); -- cgit v1.2.3-59-g8ed1b From 15aa5c75468a103cdee1a0e0ec26aad979bf71a5 Mon Sep 17 00:00:00 2001 From: Mattia Dongili Date: Mon, 11 Jun 2012 07:18:31 +0900 Subject: sony-laptop: store battery care limits on batteries Some models offer the option to store the limits on the battery (firmware?). Signed-off-by: Mattia Dongili Signed-off-by: Matthew Garrett --- drivers/platform/x86/sony-laptop.c | 41 +++++++++++++++++++------------------- 1 file changed, 21 insertions(+), 20 deletions(-) diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index 4f42e5661bf5..f045e3e59cd6 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -1916,32 +1916,33 @@ static ssize_t sony_nc_battery_care_limit_store(struct device *dev, * bits 4,5: store the limit into the EC * bits 6,7: store the limit into the battery */ + cmd = 0; - /* - * handle 0x0115 should allow storing on battery too; - * handle 0x0136 same as 0x0115 + health status; - * handle 0x013f, same as 0x0136 but no storing on the battery - * - * Store only inside the EC for now, regardless the handle number - */ - if (value == 0) - /* disable limits */ - cmd = 0x0; + if (value > 0) { + if (value <= 50) + cmd = 0x20; - else if (value <= 50) - cmd = 0x21; + else if (value <= 80) + cmd = 0x10; - else if (value <= 80) - cmd = 0x11; + else if (value <= 100) + cmd = 0x30; + + else + return -EINVAL; - else if (value <= 100) - cmd = 0x31; + /* + * handle 0x0115 should allow storing on battery too; + * handle 0x0136 same as 0x0115 + health status; + * handle 0x013f, same as 0x0136 but no storing on the battery + */ + if (bcare_ctl->handle != 0x013f) + cmd = cmd | (cmd << 2); - else - return -EINVAL; + cmd = (cmd | 0x1) << 0x10; + } - if (sony_call_snc_handle(bcare_ctl->handle, (cmd << 0x10) | 0x0100, - &result)) + if (sony_call_snc_handle(bcare_ctl->handle, cmd | 0x0100, &result)) return -EIO; return count; -- cgit v1.2.3-59-g8ed1b From 014fc8fbece33d42e2aa92d289fffa213a159321 Mon Sep 17 00:00:00 2001 From: Mattia Dongili Date: Sat, 9 Jun 2012 13:18:11 +0900 Subject: sony-laptop: add lid backlight support for handle 0x143 Signed-off-by: Mattia Dongili Signed-off-by: Matthew Garrett --- drivers/platform/x86/sony-laptop.c | 27 ++++++++++++++++++++++++--- 1 file changed, 24 insertions(+), 3 deletions(-) diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index f045e3e59cd6..a94e13fe1f42 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -1010,6 +1010,7 @@ static ssize_t sony_nc_sysfs_store(struct device *dev, struct sony_backlight_props { struct backlight_device *dev; int handle; + int cmd_base; u8 offset; u8 maxlvl; }; @@ -1037,7 +1038,7 @@ static int sony_nc_get_brightness_ng(struct backlight_device *bd) struct sony_backlight_props *sdev = (struct sony_backlight_props *)bl_get_data(bd); - sony_call_snc_handle(sdev->handle, 0x0200, &result); + sony_call_snc_handle(sdev->handle, sdev->cmd_base + 0x100, &result); return (result & 0xff) - sdev->offset; } @@ -1049,7 +1050,8 @@ static int sony_nc_update_status_ng(struct backlight_device *bd) (struct sony_backlight_props *)bl_get_data(bd); value = bd->props.brightness + sdev->offset; - if (sony_call_snc_handle(sdev->handle, 0x0100 | (value << 16), &result)) + if (sony_call_snc_handle(sdev->handle, sdev->cmd_base | (value << 0x10), + &result)) return -EIO; return value; @@ -2496,6 +2498,7 @@ static void sony_nc_backlight_ng_read_limits(int handle, { u64 offset; int i; + int lvl_table_len = 0; u8 min = 0xff, max = 0x00; unsigned char buffer[32] = { 0 }; @@ -2515,11 +2518,21 @@ static void sony_nc_backlight_ng_read_limits(int handle, if (i < 0) return; + switch (handle) { + case 0x012f: + case 0x0137: + lvl_table_len = 9; + break; + case 0x143: + lvl_table_len = 16; + break; + } + /* the buffer lists brightness levels available, brightness levels are * from position 0 to 8 in the array, other values are used by ALS * control. */ - for (i = 0; i < 9 && i < ARRAY_SIZE(buffer); i++) { + for (i = 0; i < lvl_table_len && i < ARRAY_SIZE(buffer); i++) { dprintk("Brightness level: %d\n", buffer[i]); @@ -2546,14 +2559,22 @@ static void sony_nc_backlight_setup(void) if (sony_find_snc_handle(0x12f) != -1) { ops = &sony_backlight_ng_ops; + sony_bl_props.cmd_base = 0x0100; sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props); max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset; } else if (sony_find_snc_handle(0x137) != -1) { ops = &sony_backlight_ng_ops; + sony_bl_props.cmd_base = 0x0100; sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props); max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset; + } else if (sony_find_snc_handle(0x143) != -1) { + ops = &sony_backlight_ng_ops; + sony_bl_props.cmd_base = 0x3000; + sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props); + max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset; + } else if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "GBRT", &unused))) { ops = &sony_backlight_ops; -- cgit v1.2.3-59-g8ed1b From ca3c2c706de39b3400e57254dce054bf7350efa2 Mon Sep 17 00:00:00 2001 From: Mattia Dongili Date: Sat, 9 Jun 2012 13:18:12 +0900 Subject: sony-laptop: input initialization should be done before SNC SNC needs input devices so better have those ready before starting handle events. Signed-off-by: Mattia Dongili Signed-off-by: Matthew Garrett --- drivers/platform/x86/sony-laptop.c | 25 ++++++++++++------------- 1 file changed, 12 insertions(+), 13 deletions(-) diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index a94e13fe1f42..89ff6d845f34 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -2642,6 +2642,12 @@ static int sony_nc_add(struct acpi_device *device) } } + result = sony_laptop_setup_input(device); + if (result) { + pr_err("Unable to create input devices\n"); + goto outplatform; + } + if (ACPI_SUCCESS(acpi_get_handle(sony_nc_acpi_handle, "ECON", &handle))) { int arg = 1; @@ -2659,12 +2665,6 @@ static int sony_nc_add(struct acpi_device *device) } /* setup input devices and helper fifo */ - result = sony_laptop_setup_input(device); - if (result) { - pr_err("Unable to create input devices\n"); - goto outsnc; - } - if (acpi_video_backlight_support()) { pr_info("brightness ignored, must be controlled by ACPI video driver\n"); } else { @@ -2712,22 +2712,21 @@ static int sony_nc_add(struct acpi_device *device) return 0; - out_sysfs: +out_sysfs: for (item = sony_nc_values; item->name; ++item) { device_remove_file(&sony_pf_device->dev, &item->devattr); } sony_nc_backlight_cleanup(); - - sony_laptop_remove_input(); - - outsnc: sony_nc_function_cleanup(sony_pf_device); sony_nc_handles_cleanup(sony_pf_device); - outpresent: +outplatform: + sony_laptop_remove_input(); + +outpresent: sony_pf_remove(); - outwalk: +outwalk: sony_nc_rfkill_cleanup(); return result; } -- cgit v1.2.3-59-g8ed1b From c7a2918373983b32db3ca35823d930641747e26f Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 9 Jun 2012 13:18:13 +0900 Subject: sony-laptop: fix sony_nc_sysfs_store() We made this an unsigned long and it causes a bug on 64 bit big endian systems when we try to pass the value to sony_nc_int_call(). Also value has to be signed because validate() returns negative error codes. Signed-off-by: Dan Carpenter Signed-off-by: Mattia Dongili Signed-off-by: Matthew Garrett --- drivers/platform/x86/sony-laptop.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index 89ff6d845f34..78e6389d2cae 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -973,7 +973,7 @@ static ssize_t sony_nc_sysfs_store(struct device *dev, struct device_attribute *attr, const char *buffer, size_t count) { - unsigned long value = 0; + int value; int ret = 0; struct sony_nc_value *item = container_of(attr, struct sony_nc_value, devattr); @@ -984,7 +984,7 @@ static ssize_t sony_nc_sysfs_store(struct device *dev, if (count > 31) return -EINVAL; - if (kstrtoul(buffer, 10, &value)) + if (kstrtoint(buffer, 10, &value)) return -EINVAL; if (item->validate) @@ -994,7 +994,7 @@ static ssize_t sony_nc_sysfs_store(struct device *dev, return value; ret = sony_nc_int_call(sony_nc_acpi_handle, *item->acpiset, - (int *)&value, NULL); + &value, NULL); if (ret < 0) return -EIO; -- cgit v1.2.3-59-g8ed1b From 56f4a9f76d8ce7c7cef92905c909aad0c7e5c9db Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 9 Jun 2012 13:18:14 +0900 Subject: sony-laptop: fix a couple signedness bugs This needs to be signed to handle negative error codes. Remove a redundant check, read_limits is always called with a valid handle. Signed-off-by: Dan Carpenter Signed-off-by: Mattia Dongili Signed-off-by: Matthew Garrett --- drivers/platform/x86/sony-laptop.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index 78e6389d2cae..b9499b65c1cd 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -2139,7 +2139,7 @@ static ssize_t sony_nc_thermal_mode_show(struct device *dev, struct device_attribute *attr, char *buffer) { ssize_t count = 0; - unsigned int mode = sony_nc_thermal_mode_get(); + int mode = sony_nc_thermal_mode_get(); if (mode < 0) return mode; @@ -2507,8 +2507,6 @@ static void sony_nc_backlight_ng_read_limits(int handle, props->maxlvl = 0xff; offset = sony_find_snc_handle(handle); - if (offset < 0) - return; /* try to read the boundaries from ACPI tables, if we fail the above * defaults should be reasonable -- cgit v1.2.3-59-g8ed1b From a1071a5abf1f4d4a7f8324e21b8b32b1342013c7 Mon Sep 17 00:00:00 2001 From: Mattia Dongili Date: Thu, 14 Jun 2012 06:36:02 +0900 Subject: sony-laptop: correct find_snc_handle failure checks Since bab7084c745bf4d75b760728387f375fd34dc683, find_snc_handle returns -EINVAL, not -1. Signed-off-by: Mattia Dongili Signed-off-by: Matthew Garrett --- drivers/platform/x86/sony-laptop.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index b9499b65c1cd..d456ff0c73b7 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -2555,19 +2555,19 @@ static void sony_nc_backlight_setup(void) const struct backlight_ops *ops = NULL; struct backlight_properties props; - if (sony_find_snc_handle(0x12f) != -1) { + if (sony_find_snc_handle(0x12f) >= 0) { ops = &sony_backlight_ng_ops; sony_bl_props.cmd_base = 0x0100; sony_nc_backlight_ng_read_limits(0x12f, &sony_bl_props); max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset; - } else if (sony_find_snc_handle(0x137) != -1) { + } else if (sony_find_snc_handle(0x137) >= 0) { ops = &sony_backlight_ng_ops; sony_bl_props.cmd_base = 0x0100; sony_nc_backlight_ng_read_limits(0x137, &sony_bl_props); max_brightness = sony_bl_props.maxlvl - sony_bl_props.offset; - } else if (sony_find_snc_handle(0x143) != -1) { + } else if (sony_find_snc_handle(0x143) >= 0) { ops = &sony_backlight_ng_ops; sony_bl_props.cmd_base = 0x3000; sony_nc_backlight_ng_read_limits(0x143, &sony_bl_props); -- cgit v1.2.3-59-g8ed1b From 57f9616b79549e772cf4dd3aa1d2df5b6c8acdfa Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 12 Jun 2012 19:28:50 +0300 Subject: ideapad: uninitialized data in ideapad_acpi_add() We only initialize the high bits of "cfg". It probably doesn't cause a problem given that this is platform specific code and doesn't have to worry about endianness etc. But it's sort of messy. Signed-off-by: Dan Carpenter Signed-off-by: Matthew Garrett --- drivers/platform/x86/ideapad-laptop.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index 4f20f8dd3d7c..17f6dfd8dbfb 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -694,10 +694,10 @@ MODULE_DEVICE_TABLE(acpi, ideapad_device_ids); static int __devinit ideapad_acpi_add(struct acpi_device *adevice) { int ret, i; - unsigned long cfg; + int cfg; struct ideapad_private *priv; - if (read_method_int(adevice->handle, "_CFG", (int *)&cfg)) + if (read_method_int(adevice->handle, "_CFG", &cfg)) return -ENODEV; priv = kzalloc(sizeof(*priv), GFP_KERNEL); @@ -721,7 +721,7 @@ static int __devinit ideapad_acpi_add(struct acpi_device *adevice) goto input_failed; for (i = 0; i < IDEAPAD_RFKILL_DEV_NUM; i++) { - if (test_bit(ideapad_rfk_data[i].cfgbit, &cfg)) + if (test_bit(ideapad_rfk_data[i].cfgbit, &priv->cfg)) ideapad_register_rfkill(adevice, i); else priv->rfk[i] = NULL; -- cgit v1.2.3-59-g8ed1b From 88ca518b0bb4161e5f20f8a1d9cc477cae294e54 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Mon, 25 Jun 2012 15:07:17 +0200 Subject: intel_ips: blacklist HP ProBook laptops intel_ips driver spews the warning message "ME failed to update for more than 1s, likely hung" at each second endlessly on HP ProBook laptops with IronLake. As this has never worked, better to blacklist the driver for now. Cc: Signed-off-by: Takashi Iwai Signed-off-by: Matthew Garrett --- drivers/platform/x86/intel_ips.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c index 0ffdb3cde2bb..9af4257d4901 100644 --- a/drivers/platform/x86/intel_ips.c +++ b/drivers/platform/x86/intel_ips.c @@ -72,6 +72,7 @@ #include #include #include +#include #include #include #include @@ -1485,6 +1486,24 @@ static DEFINE_PCI_DEVICE_TABLE(ips_id_table) = { MODULE_DEVICE_TABLE(pci, ips_id_table); +static int ips_blacklist_callback(const struct dmi_system_id *id) +{ + pr_info("Blacklisted intel_ips for %s\n", id->ident); + return 1; +} + +static const struct dmi_system_id ips_blacklist[] = { + { + .callback = ips_blacklist_callback, + .ident = "HP ProBook", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP ProBook"), + }, + }, + { } /* terminating entry */ +}; + static int ips_probe(struct pci_dev *dev, const struct pci_device_id *id) { u64 platform_info; @@ -1494,6 +1513,9 @@ static int ips_probe(struct pci_dev *dev, const struct pci_device_id *id) u16 htshi, trc, trc_required_mask; u8 tse; + if (dmi_check_system(ips_blacklist)) + return -ENODEV; + ips = kzalloc(sizeof(struct ips_driver), GFP_KERNEL); if (!ips) return -ENOMEM; -- cgit v1.2.3-59-g8ed1b From 6fda135c908d0f38a0167adcbd71094572e3059b Mon Sep 17 00:00:00 2001 From: Greg Kroah-Hartman Date: Tue, 26 Jun 2012 12:35:24 -0700 Subject: Revert "printk: return -EINVAL if the message len is bigger than the buf size" This reverts commit b56a39ac263e5b8cafedd551a49c2105e68b98c2. A better patch from Jan will follow this to resolve the issue. Acked-by: Kay Sievers Cc: Fengguang Wu Cc: Yuanhan Liu Cc: Jan Beulich Signed-off-by: Greg Kroah-Hartman --- kernel/printk.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/kernel/printk.c b/kernel/printk.c index d6a1412f6b09..ff05361962e1 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -880,9 +880,7 @@ static int syslog_print(char __user *buf, int size) syslog_seq++; raw_spin_unlock_irq(&logbuf_lock); - if (len > size) - len = -EINVAL; - else if (len > 0 && copy_to_user(buf, text, len)) + if (len > 0 && copy_to_user(buf, text, len)) len = -EFAULT; kfree(text); -- cgit v1.2.3-59-g8ed1b From 116e90b23f74d303e8d607c7a7d54f60f14ab9f2 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Fri, 22 Jun 2012 16:36:09 +0100 Subject: syslog: fill buffer with more than a single message for SYSLOG_ACTION_READ The recent changes to the printk buffer management resulted in SYSLOG_ACTION_READ to only return a single message, whereas previously the buffer would get filled as much as possible. As, when too small to fit everything, filling it to the last byte would be pretty ugly with the new code, the patch arranges for as many messages as possible to get returned in a single invocation. User space tools in at least all SLES versions depend on the old behavior. This at once addresses the issue attempted to get fixed with commit b56a39ac263e5b8cafedd551a49c2105e68b98c2 ("printk: return -EINVAL if the message len is bigger than the buf size"), and since that commit widened the possibility for losing a message altogether, the patch here assumes that this other commit would get reverted first (otherwise the patch here won't apply). Furthermore, this patch also addresses the problem dealt with in commit 4a77a5a06ec66ed05199b301e7c25f42f979afdc ("printk: use mutex lock to stop syslog_seq from going wild"), so I'd recommend reverting that one too (albeit there's no direct collision between the two). Signed-off-by: Jan Beulich Acked-by: Kay Sievers Cc: Yuanhan Liu Signed-off-by: Greg Kroah-Hartman --- kernel/printk.c | 51 +++++++++++++++++++++++++++++++++++++-------------- 1 file changed, 37 insertions(+), 14 deletions(-) diff --git a/kernel/printk.c b/kernel/printk.c index ff05361962e1..cdfba44fedf0 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -862,26 +862,49 @@ static int syslog_print(char __user *buf, int size) { char *text; struct log *msg; - int len; + int len = 0; text = kmalloc(LOG_LINE_MAX, GFP_KERNEL); if (!text) return -ENOMEM; - raw_spin_lock_irq(&logbuf_lock); - if (syslog_seq < log_first_seq) { - /* messages are gone, move to first one */ - syslog_seq = log_first_seq; - syslog_idx = log_first_idx; - } - msg = log_from_idx(syslog_idx); - len = msg_print_text(msg, true, text, LOG_LINE_MAX); - syslog_idx = log_next(syslog_idx); - syslog_seq++; - raw_spin_unlock_irq(&logbuf_lock); + while (size > 0) { + size_t n; + + raw_spin_lock_irq(&logbuf_lock); + if (syslog_seq < log_first_seq) { + /* messages are gone, move to first one */ + syslog_seq = log_first_seq; + syslog_idx = log_first_idx; + } + if (syslog_seq == log_next_seq) { + raw_spin_unlock_irq(&logbuf_lock); + break; + } + msg = log_from_idx(syslog_idx); + n = msg_print_text(msg, true, text, LOG_LINE_MAX); + if (n <= size) { + syslog_idx = log_next(syslog_idx); + syslog_seq++; + } else + n = 0; + raw_spin_unlock_irq(&logbuf_lock); + + if (!n) + break; - if (len > 0 && copy_to_user(buf, text, len)) - len = -EFAULT; + len += n; + size -= n; + buf += n; + n = copy_to_user(buf - n, text, n); + + if (n) { + len -= n; + if (!len) + len = -EFAULT; + break; + } + } kfree(text); return len; -- cgit v1.2.3-59-g8ed1b From d380443cd0271903bf9516bc04cead81676be034 Mon Sep 17 00:00:00 2001 From: Subhash Jadavani Date: Wed, 13 Jun 2012 17:10:43 +0530 Subject: mmc: block: fix the data timeout issue with ACMD22 If multi block write operation fails for SD card, during error handling we send the SD_APP_SEND_NUM_WR_BLKS (ACMD22) to know how many blocks were already programmed by card. But mmc_sd_num_wr_blocks() function which sends the ACMD22 calculates the data timeout value from csd.tacc_ns and csd.tacc_clks parameters which will be 0 for block addressed (>2GB cards) SD card. This would result in timeout_ns and timeout_clks being 0 in the mmc_request passed to host driver. This means host controller would program its data timeout timer value with 0 which could result in DATA TIMEOUT errors from controller. To fix this issue, mmc_sd_num_wr_blocks() should instead just call the mmc_set_data_timeout() to calculate the data timeout value. mmc_set_data_timeout() function ensures that non zero timeout value is set even for block addressed SD cards. Signed-off-by: Subhash Jadavani Reviewed-by: Venkatraman S Signed-off-by: Chris Ball --- drivers/mmc/card/block.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) diff --git a/drivers/mmc/card/block.c b/drivers/mmc/card/block.c index dd2d374dcc7a..276d21ce6bc1 100644 --- a/drivers/mmc/card/block.c +++ b/drivers/mmc/card/block.c @@ -554,7 +554,6 @@ static u32 mmc_sd_num_wr_blocks(struct mmc_card *card) struct mmc_request mrq = {NULL}; struct mmc_command cmd = {0}; struct mmc_data data = {0}; - unsigned int timeout_us; struct scatterlist sg; @@ -574,23 +573,12 @@ static u32 mmc_sd_num_wr_blocks(struct mmc_card *card) cmd.arg = 0; cmd.flags = MMC_RSP_SPI_R1 | MMC_RSP_R1 | MMC_CMD_ADTC; - data.timeout_ns = card->csd.tacc_ns * 100; - data.timeout_clks = card->csd.tacc_clks * 100; - - timeout_us = data.timeout_ns / 1000; - timeout_us += data.timeout_clks * 1000 / - (card->host->ios.clock / 1000); - - if (timeout_us > 100000) { - data.timeout_ns = 100000000; - data.timeout_clks = 0; - } - data.blksz = 4; data.blocks = 1; data.flags = MMC_DATA_READ; data.sg = &sg; data.sg_len = 1; + mmc_set_data_timeout(&data, card); mrq.cmd = &cmd; mrq.data = &data; -- cgit v1.2.3-59-g8ed1b From fe85227347738eb9b871bc163e7fb0db8b6cd2a0 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Fri, 22 Jun 2012 18:49:35 +0800 Subject: Revert "mmc: omap_hsmmc: Enable Auto CMD12" This patch reverts the commit dba3c29ea4a1d5d544. After bisecting, this commit dba3c29 is found to ruin micro-SD card data (writing incorrect file, or fs is corrupt after several times mount) on the beagle-xm revB, and reverting the commit will fix the problem. Also from TRM of OMAP3/OMAP4/DM37x, the below is mentioned about the Auto CMD12 Enable bit. - SDIO does not support this feature. - SD card only. Looks it is not suitable to always enable Auto CMD12 in host controller driver. Considered that the commit is not mature enough, so ask to revert it first. Cc: Balaji T K Cc: Venkatraman S Buglink: https://lkml.org/lkml/2012/6/10/225 Reported-by: Paolo Pisati Reported-bisected-and-tested-by: Ming Lei Signed-off-by: Ming Lei Acked-by: Venkatraman S Signed-off-by: Chris Ball --- drivers/mmc/host/omap_hsmmc.c | 15 +++------------ 1 file changed, 3 insertions(+), 12 deletions(-) diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c index 9a7a60aeb19e..389a3eedfc24 100644 --- a/drivers/mmc/host/omap_hsmmc.c +++ b/drivers/mmc/host/omap_hsmmc.c @@ -85,7 +85,6 @@ #define BRR_ENABLE (1 << 5) #define DTO_ENABLE (1 << 20) #define INIT_STREAM (1 << 1) -#define ACEN_ACMD12 (1 << 2) #define DP_SELECT (1 << 21) #define DDIR (1 << 4) #define DMA_EN 0x1 @@ -117,7 +116,6 @@ #define OMAP_MMC_MAX_CLOCK 52000000 #define DRIVER_NAME "omap_hsmmc" -#define AUTO_CMD12 (1 << 0) /* Auto CMD12 support */ /* * One controller can have multiple slots, like on some omap boards using * omap.c controller driver. Luckily this is not currently done on any known @@ -177,7 +175,6 @@ struct omap_hsmmc_host { int reqs_blocked; int use_reg; int req_in_progress; - unsigned int flags; struct omap_hsmmc_next next_data; struct omap_mmc_platform_data *pdata; @@ -773,8 +770,6 @@ omap_hsmmc_start_command(struct omap_hsmmc_host *host, struct mmc_command *cmd, cmdtype = 0x3; cmdreg = (cmd->opcode << 24) | (resptype << 16) | (cmdtype << 22); - if ((host->flags & AUTO_CMD12) && mmc_op_multi(cmd->opcode)) - cmdreg |= ACEN_ACMD12; if (data) { cmdreg |= DP_SELECT | MSBS | BCE; @@ -847,14 +842,11 @@ omap_hsmmc_xfer_done(struct omap_hsmmc_host *host, struct mmc_data *data) else data->bytes_xfered = 0; - if (data->stop && ((!(host->flags & AUTO_CMD12)) || data->error)) { - omap_hsmmc_start_command(host, data->stop, NULL); - } else { - if (data->stop) - data->stop->resp[0] = OMAP_HSMMC_READ(host->base, - RSP76); + if (!data->stop) { omap_hsmmc_request_done(host, data->mrq); + return; } + omap_hsmmc_start_command(host, data->stop, NULL); } /* @@ -1859,7 +1851,6 @@ static int __devinit omap_hsmmc_probe(struct platform_device *pdev) host->mapbase = res->start + pdata->reg_offset; host->base = ioremap(host->mapbase, SZ_4K); host->power_mode = MMC_POWER_OFF; - host->flags = AUTO_CMD12; host->next_data.cookie = 1; platform_set_drvdata(pdev, host); -- cgit v1.2.3-59-g8ed1b From c6156328dec52a55f90688cbfad21c83f8711d84 Mon Sep 17 00:00:00 2001 From: Alexandre Pereira da Silva Date: Tue, 26 Jun 2012 11:56:48 -0300 Subject: usb: phy: Fix Kconfig dependency for Phy drivers USB phy layer driver are only built if usb host is selected, but they are used too by USB_GADGET drivers Signed-off-by: Alexandre Pereira da Silva Acked-by: Roland Stigge Signed-off-by: Greg Kroah-Hartman --- drivers/usb/Makefile | 2 +- drivers/usb/phy/Kconfig | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile index c691eea51537..f5ed3d75fa5a 100644 --- a/drivers/usb/Makefile +++ b/drivers/usb/Makefile @@ -46,7 +46,7 @@ obj-$(CONFIG_USB_MICROTEK) += image/ obj-$(CONFIG_USB_SERIAL) += serial/ obj-$(CONFIG_USB) += misc/ -obj-$(CONFIG_USB) += phy/ +obj-$(CONFIG_USB_COMMON) += phy/ obj-$(CONFIG_EARLY_PRINTK_DBGP) += early/ obj-$(CONFIG_USB_ATM) += atm/ diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig index 3cfabcba7447..e7cf84f0751a 100644 --- a/drivers/usb/phy/Kconfig +++ b/drivers/usb/phy/Kconfig @@ -2,11 +2,11 @@ # Physical Layer USB driver configuration # comment "USB Physical Layer drivers" - depends on USB + depends on USB || USB_GADGET config USB_ISP1301 tristate "NXP ISP1301 USB transceiver support" - depends on USB + depends on USB || USB_GADGET depends on I2C help Say Y here to add support for the NXP ISP1301 USB transceiver driver. -- cgit v1.2.3-59-g8ed1b From 065b07e7a14676f4138ce4619d229c0be5a74230 Mon Sep 17 00:00:00 2001 From: Forest Bond Date: Fri, 22 Jun 2012 10:30:38 -0400 Subject: USB: option: Add USB ID for Novatel Ovation MC551 This device is also known as the Verizon USB551L. Signed-off-by: Forest Bond Acked-by: Dan Williams Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 396d968dddd9..adf8ce72be50 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -236,6 +236,7 @@ static void option_instat_callback(struct urb *urb); #define NOVATELWIRELESS_PRODUCT_G1 0xA001 #define NOVATELWIRELESS_PRODUCT_G1_M 0xA002 #define NOVATELWIRELESS_PRODUCT_G2 0xA010 +#define NOVATELWIRELESS_PRODUCT_MC551 0xB001 /* AMOI PRODUCTS */ #define AMOI_VENDOR_ID 0x1614 @@ -738,6 +739,8 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_G1) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_G1_M) }, { USB_DEVICE(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_G2) }, + /* Novatel Ovation MC551 a.k.a. Verizon USB551L */ + { USB_DEVICE_AND_INTERFACE_INFO(NOVATELWIRELESS_VENDOR_ID, NOVATELWIRELESS_PRODUCT_MC551, 0xff, 0xff, 0xff) }, { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01) }, { USB_DEVICE(AMOI_VENDOR_ID, AMOI_PRODUCT_H01A) }, -- cgit v1.2.3-59-g8ed1b From 3fcc8f96829776cf181918461923d1e3bbb831a2 Mon Sep 17 00:00:00 2001 From: Craig Shelley Date: Tue, 26 Jun 2012 23:20:04 +0100 Subject: USB: CP210x Add 10 Device IDs This patch adds 10 device IDs for CP210x based devices from the following manufacturers: Timewave Clipsal Festo Link Instruments Signed-off-by: Craig Shelley Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/cp210x.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c index 73d25cd8cba5..1e71079ce33b 100644 --- a/drivers/usb/serial/cp210x.c +++ b/drivers/usb/serial/cp210x.c @@ -93,6 +93,7 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10C4, 0x814B) }, /* West Mountain Radio RIGtalk */ { USB_DEVICE(0x10C4, 0x8156) }, /* B&G H3000 link cable */ { USB_DEVICE(0x10C4, 0x815E) }, /* Helicomm IP-Link 1220-DVM */ + { USB_DEVICE(0x10C4, 0x815F) }, /* Timewave HamLinkUSB */ { USB_DEVICE(0x10C4, 0x818B) }, /* AVIT Research USB to TTL */ { USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */ { USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */ @@ -134,7 +135,13 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x10CE, 0xEA6A) }, /* Silicon Labs MobiData GPRS USB Modem 100EU */ { USB_DEVICE(0x13AD, 0x9999) }, /* Baltech card reader */ { USB_DEVICE(0x1555, 0x0004) }, /* Owen AC4 USB-RS485 Converter */ + { USB_DEVICE(0x166A, 0x0201) }, /* Clipsal 5500PACA C-Bus Pascal Automation Controller */ + { USB_DEVICE(0x166A, 0x0301) }, /* Clipsal 5800PC C-Bus Wireless PC Interface */ { USB_DEVICE(0x166A, 0x0303) }, /* Clipsal 5500PCU C-Bus USB interface */ + { USB_DEVICE(0x166A, 0x0304) }, /* Clipsal 5000CT2 C-Bus Black and White Touchscreen */ + { USB_DEVICE(0x166A, 0x0305) }, /* Clipsal C-5000CT2 C-Bus Spectrum Colour Touchscreen */ + { USB_DEVICE(0x166A, 0x0401) }, /* Clipsal L51xx C-Bus Architectural Dimmer */ + { USB_DEVICE(0x166A, 0x0101) }, /* Clipsal 5560884 C-Bus Multi-room Audio Matrix Switcher */ { USB_DEVICE(0x16D6, 0x0001) }, /* Jablotron serial interface */ { USB_DEVICE(0x16DC, 0x0010) }, /* W-IE-NE-R Plein & Baus GmbH PL512 Power Supply */ { USB_DEVICE(0x16DC, 0x0011) }, /* W-IE-NE-R Plein & Baus GmbH RCM Remote Control for MARATON Power Supply */ @@ -146,7 +153,11 @@ static const struct usb_device_id id_table[] = { { USB_DEVICE(0x1843, 0x0200) }, /* Vaisala USB Instrument Cable */ { USB_DEVICE(0x18EF, 0xE00F) }, /* ELV USB-I2C-Interface */ { USB_DEVICE(0x1BE3, 0x07A6) }, /* WAGO 750-923 USB Service Cable */ + { USB_DEVICE(0x1E29, 0x0102) }, /* Festo CPX-USB */ + { USB_DEVICE(0x1E29, 0x0501) }, /* Festo CMSP */ { USB_DEVICE(0x3195, 0xF190) }, /* Link Instruments MSO-19 */ + { USB_DEVICE(0x3195, 0xF280) }, /* Link Instruments MSO-28 */ + { USB_DEVICE(0x3195, 0xF281) }, /* Link Instruments MSO-28 */ { USB_DEVICE(0x413C, 0x9500) }, /* DW700 GPS USB interface */ { } /* Terminating Entry */ }; -- cgit v1.2.3-59-g8ed1b From a2842a1e66329798d66563b52faec1a299ec4f73 Mon Sep 17 00:00:00 2001 From: Eric Dumazet Date: Mon, 25 Jun 2012 05:35:45 +0000 Subject: net: l2tp_eth: use LLTX to avoid LOCKDEP splats Denys Fedoryshchenko reported a LOCKDEP issue with l2tp code. [ 8683.927442] ====================================================== [ 8683.927555] [ INFO: possible circular locking dependency detected ] [ 8683.927672] 3.4.1-build-0061 #14 Not tainted [ 8683.927782] ------------------------------------------------------- [ 8683.927895] swapper/0/0 is trying to acquire lock: [ 8683.928007] (slock-AF_INET){+.-...}, at: [] l2tp_xmit_skb+0x173/0x47e [l2tp_core] [ 8683.928121] [ 8683.928121] but task is already holding lock: [ 8683.928121] (_xmit_ETHER#2){+.-...}, at: [] sch_direct_xmit+0x36/0x119 [ 8683.928121] [ 8683.928121] which lock already depends on the new lock. [ 8683.928121] [ 8683.928121] [ 8683.928121] the existing dependency chain (in reverse order) is: [ 8683.928121] [ 8683.928121] -> #1 (_xmit_ETHER#2){+.-...}: [ 8683.928121] [] lock_acquire+0x71/0x85 [ 8683.928121] [] _raw_spin_lock+0x33/0x40 [ 8683.928121] [] ip_send_reply+0xf2/0x1ce [ 8683.928121] [] tcp_v4_send_reset+0x153/0x16f [ 8683.928121] [] tcp_v4_do_rcv+0x172/0x194 [ 8683.928121] [] tcp_v4_rcv+0x387/0x5a0 [ 8683.928121] [] ip_local_deliver_finish+0x13a/0x1e9 [ 8683.928121] [] NF_HOOK.clone.11+0x46/0x4d [ 8683.928121] [] ip_local_deliver+0x41/0x45 [ 8683.928121] [] ip_rcv_finish+0x31a/0x33c [ 8683.928121] [] NF_HOOK.clone.11+0x46/0x4d [ 8683.928121] [] ip_rcv+0x201/0x23d [ 8683.928121] [] __netif_receive_skb+0x329/0x378 [ 8683.928121] [] netif_receive_skb+0x4e/0x7d [ 8683.928121] [] rtl8139_poll+0x243/0x33d [8139too] [ 8683.928121] [] net_rx_action+0x90/0x15d [ 8683.928121] [] __do_softirq+0x7b/0x118 [ 8683.928121] [ 8683.928121] -> #0 (slock-AF_INET){+.-...}: [ 8683.928121] [] __lock_acquire+0x9a3/0xc27 [ 8683.928121] [] lock_acquire+0x71/0x85 [ 8683.928121] [] _raw_spin_lock+0x33/0x40 [ 8683.928121] [] l2tp_xmit_skb+0x173/0x47e [l2tp_core] [ 8683.928121] [] l2tp_eth_dev_xmit+0x1a/0x2f [l2tp_eth] [ 8683.928121] [] dev_hard_start_xmit+0x333/0x3f2 [ 8683.928121] [] sch_direct_xmit+0x55/0x119 [ 8683.928121] [] dev_queue_xmit+0x282/0x418 [ 8683.928121] [] NF_HOOK.clone.19+0x45/0x4c [ 8683.928121] [] arp_xmit+0x22/0x24 [ 8683.928121] [] arp_send+0x41/0x48 [ 8683.928121] [] arp_process+0x289/0x491 [ 8683.928121] [] NF_HOOK.clone.19+0x45/0x4c [ 8683.928121] [] arp_rcv+0xb1/0xc3 [ 8683.928121] [] __netif_receive_skb+0x329/0x378 [ 8683.928121] [] process_backlog+0x69/0x130 [ 8683.928121] [] net_rx_action+0x90/0x15d [ 8683.928121] [] __do_softirq+0x7b/0x118 [ 8683.928121] [ 8683.928121] other info that might help us debug this: [ 8683.928121] [ 8683.928121] Possible unsafe locking scenario: [ 8683.928121] [ 8683.928121] CPU0 CPU1 [ 8683.928121] ---- ---- [ 8683.928121] lock(_xmit_ETHER#2); [ 8683.928121] lock(slock-AF_INET); [ 8683.928121] lock(_xmit_ETHER#2); [ 8683.928121] lock(slock-AF_INET); [ 8683.928121] [ 8683.928121] *** DEADLOCK *** [ 8683.928121] [ 8683.928121] 3 locks held by swapper/0/0: [ 8683.928121] #0: (rcu_read_lock){.+.+..}, at: [] rcu_lock_acquire+0x0/0x30 [ 8683.928121] #1: (rcu_read_lock_bh){.+....}, at: [] rcu_lock_acquire+0x0/0x30 [ 8683.928121] #2: (_xmit_ETHER#2){+.-...}, at: [] sch_direct_xmit+0x36/0x119 [ 8683.928121] [ 8683.928121] stack backtrace: [ 8683.928121] Pid: 0, comm: swapper/0 Not tainted 3.4.1-build-0061 #14 [ 8683.928121] Call Trace: [ 8683.928121] [] ? printk+0x18/0x1a [ 8683.928121] [] print_circular_bug+0x1ac/0x1b6 [ 8683.928121] [] __lock_acquire+0x9a3/0xc27 [ 8683.928121] [] lock_acquire+0x71/0x85 [ 8683.928121] [] ? l2tp_xmit_skb+0x173/0x47e [l2tp_core] [ 8683.928121] [] _raw_spin_lock+0x33/0x40 [ 8683.928121] [] ? l2tp_xmit_skb+0x173/0x47e [l2tp_core] [ 8683.928121] [] l2tp_xmit_skb+0x173/0x47e [l2tp_core] [ 8683.928121] [] l2tp_eth_dev_xmit+0x1a/0x2f [l2tp_eth] [ 8683.928121] [] dev_hard_start_xmit+0x333/0x3f2 [ 8683.928121] [] sch_direct_xmit+0x55/0x119 [ 8683.928121] [] dev_queue_xmit+0x282/0x418 [ 8683.928121] [] ? dev_hard_start_xmit+0x3f2/0x3f2 [ 8683.928121] [] NF_HOOK.clone.19+0x45/0x4c [ 8683.928121] [] arp_xmit+0x22/0x24 [ 8683.928121] [] ? dev_hard_start_xmit+0x3f2/0x3f2 [ 8683.928121] [] arp_send+0x41/0x48 [ 8683.928121] [] arp_process+0x289/0x491 [ 8683.928121] [] ? __neigh_lookup.clone.20+0x42/0x42 [ 8683.928121] [] NF_HOOK.clone.19+0x45/0x4c [ 8683.928121] [] arp_rcv+0xb1/0xc3 [ 8683.928121] [] ? __neigh_lookup.clone.20+0x42/0x42 [ 8683.928121] [] __netif_receive_skb+0x329/0x378 [ 8683.928121] [] process_backlog+0x69/0x130 [ 8683.928121] [] net_rx_action+0x90/0x15d [ 8683.928121] [] __do_softirq+0x7b/0x118 [ 8683.928121] [] ? local_bh_enable+0xd/0xd [ 8683.928121] [] ? irq_exit+0x41/0x91 [ 8683.928121] [] ? do_IRQ+0x79/0x8d [ 8683.928121] [] ? trace_hardirqs_off_caller+0x2e/0x86 [ 8683.928121] [] ? common_interrupt+0x2e/0x34 [ 8683.928121] [] ? default_idle+0x23/0x38 [ 8683.928121] [] ? cpu_idle+0x55/0x6f [ 8683.928121] [] ? rest_init+0xa1/0xa7 [ 8683.928121] [] ? __read_lock_failed+0x14/0x14 [ 8683.928121] [] ? start_kernel+0x303/0x30a [ 8683.928121] [] ? repair_env_string+0x51/0x51 [ 8683.928121] [] ? i386_start_kernel+0xa8/0xaf It appears that like most virtual devices, l2tp should be converted to LLTX mode. This patch takes care of statistics using atomic_long in both RX and TX paths, and fix a bug in l2tp_eth_dev_recv(), which was caching skb->data before a pskb_may_pull() call. Signed-off-by: Eric Dumazet Reported-by: Denys Fedoryshchenko Cc: James Chapman Cc: Hong zhi guo Cc: Francois Romieu Signed-off-by: David S. Miller --- net/l2tp/l2tp_eth.c | 43 ++++++++++++++++++++++++++++++++----------- 1 file changed, 32 insertions(+), 11 deletions(-) diff --git a/net/l2tp/l2tp_eth.c b/net/l2tp/l2tp_eth.c index c3738f49646a..47b259fccd27 100644 --- a/net/l2tp/l2tp_eth.c +++ b/net/l2tp/l2tp_eth.c @@ -42,6 +42,11 @@ struct l2tp_eth { struct sock *tunnel_sock; struct l2tp_session *session; struct list_head list; + atomic_long_t tx_bytes; + atomic_long_t tx_packets; + atomic_long_t rx_bytes; + atomic_long_t rx_packets; + atomic_long_t rx_errors; }; /* via l2tp_session_priv() */ @@ -88,24 +93,40 @@ static int l2tp_eth_dev_xmit(struct sk_buff *skb, struct net_device *dev) struct l2tp_eth *priv = netdev_priv(dev); struct l2tp_session *session = priv->session; - dev->stats.tx_bytes += skb->len; - dev->stats.tx_packets++; + atomic_long_add(skb->len, &priv->tx_bytes); + atomic_long_inc(&priv->tx_packets); l2tp_xmit_skb(session, skb, session->hdr_len); return NETDEV_TX_OK; } +static struct rtnl_link_stats64 *l2tp_eth_get_stats64(struct net_device *dev, + struct rtnl_link_stats64 *stats) +{ + struct l2tp_eth *priv = netdev_priv(dev); + + stats->tx_bytes = atomic_long_read(&priv->tx_bytes); + stats->tx_packets = atomic_long_read(&priv->tx_packets); + stats->rx_bytes = atomic_long_read(&priv->rx_bytes); + stats->rx_packets = atomic_long_read(&priv->rx_packets); + stats->rx_errors = atomic_long_read(&priv->rx_errors); + return stats; +} + + static struct net_device_ops l2tp_eth_netdev_ops = { .ndo_init = l2tp_eth_dev_init, .ndo_uninit = l2tp_eth_dev_uninit, .ndo_start_xmit = l2tp_eth_dev_xmit, + .ndo_get_stats64 = l2tp_eth_get_stats64, }; static void l2tp_eth_dev_setup(struct net_device *dev) { ether_setup(dev); - dev->priv_flags &= ~IFF_TX_SKB_SHARING; + dev->priv_flags &= ~IFF_TX_SKB_SHARING; + dev->features |= NETIF_F_LLTX; dev->netdev_ops = &l2tp_eth_netdev_ops; dev->destructor = free_netdev; } @@ -114,17 +135,17 @@ static void l2tp_eth_dev_recv(struct l2tp_session *session, struct sk_buff *skb, { struct l2tp_eth_sess *spriv = l2tp_session_priv(session); struct net_device *dev = spriv->dev; + struct l2tp_eth *priv = netdev_priv(dev); if (session->debug & L2TP_MSG_DATA) { unsigned int length; - u8 *ptr = skb->data; length = min(32u, skb->len); if (!pskb_may_pull(skb, length)) goto error; pr_debug("%s: eth recv\n", session->name); - print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, ptr, length); + print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, skb->data, length); } if (!pskb_may_pull(skb, sizeof(ETH_HLEN))) @@ -139,15 +160,15 @@ static void l2tp_eth_dev_recv(struct l2tp_session *session, struct sk_buff *skb, nf_reset(skb); if (dev_forward_skb(dev, skb) == NET_RX_SUCCESS) { - dev->stats.rx_packets++; - dev->stats.rx_bytes += data_len; - } else - dev->stats.rx_errors++; - + atomic_long_inc(&priv->rx_packets); + atomic_long_add(data_len, &priv->rx_bytes); + } else { + atomic_long_inc(&priv->rx_errors); + } return; error: - dev->stats.rx_errors++; + atomic_long_inc(&priv->rx_errors); kfree_skb(skb); } -- cgit v1.2.3-59-g8ed1b From 57efd44c8cad440fb00ef8078cb018ab2f221373 Mon Sep 17 00:00:00 2001 From: Alexander Duyck Date: Mon, 25 Jun 2012 21:54:46 +0000 Subject: ixgbe: Do not pad FCoE frames as this can cause issues with FCoE DDP FCoE target mode was experiencing issues due to the fact that we were sending up data frames that were padded to 60 bytes after the DDP logic had already stripped the frame down to 52 or 56 depending on the use of VLANs. This was resulting in the FCoE DDP logic having issues since it thought the frame still had data in it due to the padding. To resolve this, adding code so that we do not pad FCoE frames prior to handling them to the stack. CC: Signed-off-by: Alexander Duyck Tested-by: Phil Schmitt Tested-by: Ross Brattain Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/ixgbe/ixgbe.h | 4 ++-- drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c | 2 +- drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 14 ++++++++++---- 3 files changed, 13 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe.h b/drivers/net/ethernet/intel/ixgbe/ixgbe.h index 3ef3c5284e52..7af291e236bf 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe.h +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe.h @@ -196,7 +196,7 @@ enum ixgbe_ring_state_t { __IXGBE_HANG_CHECK_ARMED, __IXGBE_RX_RSC_ENABLED, __IXGBE_RX_CSUM_UDP_ZERO_ERR, - __IXGBE_RX_FCOE_BUFSZ, + __IXGBE_RX_FCOE, }; #define check_for_tx_hang(ring) \ @@ -290,7 +290,7 @@ struct ixgbe_ring_feature { #if defined(IXGBE_FCOE) && (PAGE_SIZE < 8192) static inline unsigned int ixgbe_rx_pg_order(struct ixgbe_ring *ring) { - return test_bit(__IXGBE_RX_FCOE_BUFSZ, &ring->state) ? 1 : 0; + return test_bit(__IXGBE_RX_FCOE, &ring->state) ? 1 : 0; } #else #define ixgbe_rx_pg_order(_ring) 0 diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c index af1a5314b494..c377706e81a8 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_lib.c @@ -634,7 +634,7 @@ static int ixgbe_alloc_q_vector(struct ixgbe_adapter *adapter, f = &adapter->ring_feature[RING_F_FCOE]; if ((rxr_idx >= f->mask) && (rxr_idx < f->mask + f->indices)) - set_bit(__IXGBE_RX_FCOE_BUFSZ, &ring->state); + set_bit(__IXGBE_RX_FCOE, &ring->state); } #endif /* IXGBE_FCOE */ diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c index cbb05d65960f..18ca3bcadf0c 100644 --- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c +++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c @@ -1058,17 +1058,17 @@ static inline void ixgbe_rx_hash(struct ixgbe_ring *ring, #ifdef IXGBE_FCOE /** * ixgbe_rx_is_fcoe - check the rx desc for incoming pkt type - * @adapter: address of board private structure + * @ring: structure containing ring specific data * @rx_desc: advanced rx descriptor * * Returns : true if it is FCoE pkt */ -static inline bool ixgbe_rx_is_fcoe(struct ixgbe_adapter *adapter, +static inline bool ixgbe_rx_is_fcoe(struct ixgbe_ring *ring, union ixgbe_adv_rx_desc *rx_desc) { __le16 pkt_info = rx_desc->wb.lower.lo_dword.hs_rss.pkt_info; - return (adapter->flags & IXGBE_FLAG_FCOE_ENABLED) && + return test_bit(__IXGBE_RX_FCOE, &ring->state) && ((pkt_info & cpu_to_le16(IXGBE_RXDADV_PKTTYPE_ETQF_MASK)) == (cpu_to_le16(IXGBE_ETQF_FILTER_FCOE << IXGBE_RXDADV_PKTTYPE_ETQF_SHIFT))); @@ -1549,6 +1549,12 @@ static bool ixgbe_cleanup_headers(struct ixgbe_ring *rx_ring, skb->truesize -= ixgbe_rx_bufsz(rx_ring); } +#ifdef IXGBE_FCOE + /* do not attempt to pad FCoE Frames as this will disrupt DDP */ + if (ixgbe_rx_is_fcoe(rx_ring, rx_desc)) + return false; + +#endif /* if skb_pad returns an error the skb was freed */ if (unlikely(skb->len < 60)) { int pad_len = 60 - skb->len; @@ -1775,7 +1781,7 @@ static bool ixgbe_clean_rx_irq(struct ixgbe_q_vector *q_vector, #ifdef IXGBE_FCOE /* if ddp, not passing to ULD unless for FCP_RSP or error */ - if (ixgbe_rx_is_fcoe(adapter, rx_desc)) { + if (ixgbe_rx_is_fcoe(rx_ring, rx_desc)) { ddp_bytes = ixgbe_fcoe_ddp(adapter, rx_desc, skb); if (!ddp_bytes) { dev_kfree_skb_any(skb); -- cgit v1.2.3-59-g8ed1b From 58c553d4d4637e1955a571350888530cd0073276 Mon Sep 17 00:00:00 2001 From: Sachin Kamat Date: Wed, 27 Jun 2012 10:03:00 +0900 Subject: ARM: EXYNOS: Fix EXYNOS_DEV_DMA Kconfig entry Commit 20ef9e08 ("ARM: EXYNOS: Support DMA for EXYNOS5250 SoC") renamed EXYNOS4_DEV_DMA to EXYNOS_DEV_DMA. But some machine entries still had EXYNOS4_DEV_DMA. Changed them to EXYNOS_DEV_DMA. Signed-off-by: Sachin Kamat Signed-off-by: Kukjin Kim --- arch/arm/mach-exynos/Kconfig | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig index 573be57d3d28..6f6d13f91e4c 100644 --- a/arch/arm/mach-exynos/Kconfig +++ b/arch/arm/mach-exynos/Kconfig @@ -212,7 +212,7 @@ config MACH_SMDKV310 select EXYNOS_DEV_SYSMMU select EXYNOS4_DEV_AHCI select SAMSUNG_DEV_KEYPAD - select EXYNOS4_DEV_DMA + select EXYNOS_DEV_DMA select SAMSUNG_DEV_PWM select EXYNOS4_DEV_USB_OHCI select EXYNOS4_SETUP_FIMD0 @@ -264,7 +264,7 @@ config MACH_UNIVERSAL_C210 select S5P_DEV_ONENAND select S5P_DEV_TV select EXYNOS_DEV_SYSMMU - select EXYNOS4_DEV_DMA + select EXYNOS_DEV_DMA select EXYNOS_DEV_DRM select EXYNOS4_SETUP_FIMD0 select EXYNOS4_SETUP_I2C1 @@ -303,7 +303,7 @@ config MACH_NURI select S5P_DEV_MFC select S5P_DEV_USB_EHCI select S5P_SETUP_MIPIPHY - select EXYNOS4_DEV_DMA + select EXYNOS_DEV_DMA select EXYNOS_DEV_DRM select EXYNOS4_SETUP_FIMC select EXYNOS4_SETUP_FIMD0 @@ -341,7 +341,7 @@ config MACH_ORIGEN select SAMSUNG_DEV_PWM select EXYNOS_DEV_DRM select EXYNOS_DEV_SYSMMU - select EXYNOS4_DEV_DMA + select EXYNOS_DEV_DMA select EXYNOS4_DEV_USB_OHCI select EXYNOS4_SETUP_FIMD0 select EXYNOS4_SETUP_SDHCI -- cgit v1.2.3-59-g8ed1b From 9e303f228c24d529bf479196d290eedc2a04cd5e Mon Sep 17 00:00:00 2001 From: Grazvydas Ignotas Date: Sat, 16 Jun 2012 22:01:25 +0300 Subject: gpio/omap: fix irq loss while in idle with debounce on It seems that currently GPIO module is not working correctly during idle when debounce is enabled - the system almost never responds to button presses (observed on OMAP3530 ES2.1 and OMAP3630 ES1.2 pandora boards). Even though wakeups are probably working, it seems that the GPIO module itself is unable to detect input events and generate interrupts. OMAP35x TRM also states that: "If the debounce clock is inactive, the debounce cell gates all input signals and thus cannot be used." So whenever we are disabling debounce clocks (for PM or other reasons), be sure the module's debounce feature is disabled too. Cc: Kevin Hilman Signed-off-by: Grazvydas Ignotas Signed-off-by: Kevin Hilman --- drivers/gpio/gpio-omap.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index c4ed1722734c..ff213e70fa5a 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -174,12 +174,22 @@ static inline void _gpio_dbck_enable(struct gpio_bank *bank) if (bank->dbck_enable_mask && !bank->dbck_enabled) { clk_enable(bank->dbck); bank->dbck_enabled = true; + + __raw_writel(bank->dbck_enable_mask, + bank->base + bank->regs->debounce_en); } } static inline void _gpio_dbck_disable(struct gpio_bank *bank) { if (bank->dbck_enable_mask && bank->dbck_enabled) { + /* + * Disable debounce before cutting it's clock. If debounce is + * enabled but the clock is not, GPIO module seems to be unable + * to detect events and generate interrupts at least on OMAP3. + */ + __raw_writel(0, bank->base + bank->regs->debounce_en); + clk_disable(bank->dbck); bank->dbck_enabled = false; } -- cgit v1.2.3-59-g8ed1b From d7ffde35e31a81100d2d0d2c4013cbf527bb32ea Mon Sep 17 00:00:00 2001 From: Jens Freimann Date: Tue, 26 Jun 2012 00:59:58 +0000 Subject: vhost: use USER_DS in vhost_worker thread On some architectures address spaces are set up in a way that this is not necessary to work properly but on some others (like s390) it is. Make sure we operate on the user address space to allow copy_xxx_user() from the vhost_worker() thread by setting it explicitly before calling use_mm() and revert it after unuse_mm(). Signed-off-by: Jens Freimann Signed-off-by: Christian Borntraeger Acked-by: Michael S. Tsirkin Signed-off-by: David S. Miller --- drivers/vhost/vhost.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index 94dbd25caa30..112156f68afb 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -191,7 +191,9 @@ static int vhost_worker(void *data) struct vhost_dev *dev = data; struct vhost_work *work = NULL; unsigned uninitialized_var(seq); + mm_segment_t oldfs = get_fs(); + set_fs(USER_DS); use_mm(dev->mm); for (;;) { @@ -229,6 +231,7 @@ static int vhost_worker(void *data) } unuse_mm(dev->mm); + set_fs(oldfs); return 0; } -- cgit v1.2.3-59-g8ed1b From 149ddd83a92b02c658d6c61f3276eb6500d585e8 Mon Sep 17 00:00:00 2001 From: stephen hemminger Date: Tue, 26 Jun 2012 05:48:45 +0000 Subject: bridge: Assign rtnl_link_ops to bridge devices created via ioctl (v2) This ensures that bridges created with brctl(8) or ioctl(2) directly also carry IFLA_LINKINFO when dumped over netlink. This also allows to create a bridge with ioctl(2) and delete it with RTM_DELLINK. Signed-off-by: Thomas Graf Signed-off-by: Stephen Hemminger Signed-off-by: David S. Miller --- net/bridge/br_if.c | 1 + net/bridge/br_netlink.c | 2 +- net/bridge/br_private.h | 1 + 3 files changed, 3 insertions(+), 1 deletion(-) diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index 0a942fbccc9a..e1144e1617be 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -240,6 +240,7 @@ int br_add_bridge(struct net *net, const char *name) return -ENOMEM; dev_net_set(dev, net); + dev->rtnl_link_ops = &br_link_ops; res = register_netdev(dev); if (res) diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c index 2080485515f1..fe41260fbf38 100644 --- a/net/bridge/br_netlink.c +++ b/net/bridge/br_netlink.c @@ -208,7 +208,7 @@ static int br_validate(struct nlattr *tb[], struct nlattr *data[]) return 0; } -static struct rtnl_link_ops br_link_ops __read_mostly = { +struct rtnl_link_ops br_link_ops __read_mostly = { .kind = "bridge", .priv_size = sizeof(struct net_bridge), .setup = br_dev_setup, diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 1a8ad4fb9a6b..a768b2408edf 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -549,6 +549,7 @@ extern int (*br_fdb_test_addr_hook)(struct net_device *dev, unsigned char *addr) #endif /* br_netlink.c */ +extern struct rtnl_link_ops br_link_ops; extern int br_netlink_init(void); extern void br_netlink_fini(void); extern void br_ifinfo_notify(int event, struct net_bridge_port *port); -- cgit v1.2.3-59-g8ed1b From 6bc96d047fe32d76ef79f3195c52a542edf7c705 Mon Sep 17 00:00:00 2001 From: Ian Campbell Date: Mon, 25 Jun 2012 22:48:41 +0000 Subject: xen/netfront: teardown the device before unregistering it. Fixes: [ 15.470311] WARNING: at /local/scratch/ianc/devel/kernels/linux/fs/sysfs/file.c:498 sysfs_attr_ns+0x95/0xa0() [ 15.470326] sysfs: kobject eth0 without dirent [ 15.470333] Modules linked in: [ 15.470342] Pid: 12, comm: xenwatch Not tainted 3.4.0-x86_32p-xenU #93 and [ 9.150554] BUG: unable to handle kernel paging request at 2b359000 [ 9.150577] IP: [] linkwatch_do_dev+0x81/0xc0 [ 9.150592] *pdpt = 000000002c3c9027 *pde = 0000000000000000 [ 9.150604] Oops: 0002 [#1] SMP [ 9.150613] Modules linked in: This is http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=675190 Reported-by: George Shuklin Signed-off-by: Ian Campbell Tested-by: William Dauchy Cc: stable@kernel.org Cc: 675190@bugs.debian.org Signed-off-by: David S. Miller --- drivers/net/xen-netfront.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c index 2027afe405fe..30899901aef5 100644 --- a/drivers/net/xen-netfront.c +++ b/drivers/net/xen-netfront.c @@ -1935,14 +1935,14 @@ static int __devexit xennet_remove(struct xenbus_device *dev) dev_dbg(&dev->dev, "%s\n", dev->nodename); - unregister_netdev(info->netdev); - xennet_disconnect_backend(info); - del_timer_sync(&info->rx_refill_timer); - xennet_sysfs_delif(info->netdev); + unregister_netdev(info->netdev); + + del_timer_sync(&info->rx_refill_timer); + free_percpu(info->stats); free_netdev(info->netdev); -- cgit v1.2.3-59-g8ed1b From e9bf5f36b09f8ec6c168ef58ee7d4890545ede1c Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 27 Jun 2012 09:26:01 +0100 Subject: drm/nouveau: add license header to prime. Just forgot this when I posted it, and yes I'm the only person to have changed the file since. Signed-off-by: Dave Airlie --- drivers/gpu/drm/nouveau/nouveau_prime.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) diff --git a/drivers/gpu/drm/nouveau/nouveau_prime.c b/drivers/gpu/drm/nouveau/nouveau_prime.c index a89240e5fb29..a25cf2cb931f 100644 --- a/drivers/gpu/drm/nouveau/nouveau_prime.c +++ b/drivers/gpu/drm/nouveau/nouveau_prime.c @@ -1,3 +1,26 @@ +/* + * Copyright 2011 Red Hat Inc. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Dave Airlie + */ #include "drmP.h" #include "drm.h" -- cgit v1.2.3-59-g8ed1b From 85f2f834e85517307f13e30e630a5fc86f757cb5 Mon Sep 17 00:00:00 2001 From: Hui Wang Date: Wed, 27 Jun 2012 16:19:18 +0800 Subject: can: flexcan: use be32_to_cpup to handle the value of dt entry The freescale arm i.MX series platform can support this driver, and usually the arm cpu works in the little endian mode by default, while device tree entry value is stored in big endian format, we should use be32_to_cpup() to handle them, after modification, it can work well both on the le cpu and be cpu. Cc: stable # v3.2+ Cc: Shawn Guo Signed-off-by: Hui Wang Signed-off-by: Marc Kleine-Budde --- drivers/net/can/flexcan.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c index 38c0690df5c8..81d474102378 100644 --- a/drivers/net/can/flexcan.c +++ b/drivers/net/can/flexcan.c @@ -939,12 +939,12 @@ static int __devinit flexcan_probe(struct platform_device *pdev) return PTR_ERR(pinctrl); if (pdev->dev.of_node) { - const u32 *clock_freq_p; + const __be32 *clock_freq_p; clock_freq_p = of_get_property(pdev->dev.of_node, "clock-frequency", NULL); if (clock_freq_p) - clock_freq = *clock_freq_p; + clock_freq = be32_to_cpup(clock_freq_p); } if (!clock_freq) { -- cgit v1.2.3-59-g8ed1b From 2d4cf5ae123e4a7bd26a88e600581aa809bcad7f Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Mon, 18 Jun 2012 16:31:22 -0700 Subject: UBIFS: correct usage of IS_ENABLED() Commit "818039c UBIFS: fix debugfs-less systems support" fixed one regression but introduced a different regression - the debugfs is now always compiled out. Root cause: IS_ENABLED() arguments should be used with the CONFIG_* prefix. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- fs/ubifs/debug.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/fs/ubifs/debug.c b/fs/ubifs/debug.c index 84a7e6f3c046..92df3b081539 100644 --- a/fs/ubifs/debug.c +++ b/fs/ubifs/debug.c @@ -2918,7 +2918,7 @@ int dbg_debugfs_init_fs(struct ubifs_info *c) struct dentry *dent; struct ubifs_debug_info *d = c->dbg; - if (!IS_ENABLED(DEBUG_FS)) + if (!IS_ENABLED(CONFIG_DEBUG_FS)) return 0; n = snprintf(d->dfs_dir_name, UBIFS_DFS_DIR_LEN + 1, UBIFS_DFS_DIR_NAME, @@ -3013,7 +3013,7 @@ out: */ void dbg_debugfs_exit_fs(struct ubifs_info *c) { - if (IS_ENABLED(DEBUG_FS)) + if (IS_ENABLED(CONFIG_DEBUG_FS)) debugfs_remove_recursive(c->dbg->dfs_dir); } @@ -3099,7 +3099,7 @@ int dbg_debugfs_init(void) const char *fname; struct dentry *dent; - if (!IS_ENABLED(DEBUG_FS)) + if (!IS_ENABLED(CONFIG_DEBUG_FS)) return 0; fname = "ubifs"; @@ -3166,7 +3166,7 @@ out: */ void dbg_debugfs_exit(void) { - if (IS_ENABLED(DEBUG_FS)) + if (IS_ENABLED(CONFIG_DEBUG_FS)) debugfs_remove_recursive(dfs_rootdir); } -- cgit v1.2.3-59-g8ed1b From 903e0e4ef9120c3d7693599acb95e76e8263fb35 Mon Sep 17 00:00:00 2001 From: Brian Norris Date: Mon, 18 Jun 2012 16:31:23 -0700 Subject: UBI: correct usage of IS_ENABLED() Commit "e9b4cf2 UBI: fix debugfs-less systems support" fixed one regression but introduced a different regression - the debugfs is now always compiled out. Root cause: IS_ENABLED() arguments should be used with the CONFIG_* prefix. Signed-off-by: Brian Norris Signed-off-by: Artem Bityutskiy --- drivers/mtd/ubi/debug.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c index 09d4f8d9d592..7c1380305219 100644 --- a/drivers/mtd/ubi/debug.c +++ b/drivers/mtd/ubi/debug.c @@ -264,7 +264,7 @@ static struct dentry *dfs_rootdir; */ int ubi_debugfs_init(void) { - if (!IS_ENABLED(DEBUG_FS)) + if (!IS_ENABLED(CONFIG_DEBUG_FS)) return 0; dfs_rootdir = debugfs_create_dir("ubi", NULL); @@ -284,7 +284,7 @@ int ubi_debugfs_init(void) */ void ubi_debugfs_exit(void) { - if (IS_ENABLED(DEBUG_FS)) + if (IS_ENABLED(CONFIG_DEBUG_FS)) debugfs_remove(dfs_rootdir); } @@ -407,7 +407,7 @@ int ubi_debugfs_init_dev(struct ubi_device *ubi) struct dentry *dent; struct ubi_debug_info *d = ubi->dbg; - if (!IS_ENABLED(DEBUG_FS)) + if (!IS_ENABLED(CONFIG_DEBUG_FS)) return 0; n = snprintf(d->dfs_dir_name, UBI_DFS_DIR_LEN + 1, UBI_DFS_DIR_NAME, @@ -477,6 +477,6 @@ out: */ void ubi_debugfs_exit_dev(struct ubi_device *ubi) { - if (IS_ENABLED(DEBUG_FS)) + if (IS_ENABLED(CONFIG_DEBUG_FS)) debugfs_remove_recursive(ubi->dbg->dfs_dir); } -- cgit v1.2.3-59-g8ed1b From 8ca78f3eda4bf1799e8c4ba02035623fd7a347df Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Wed, 27 Jun 2012 15:05:48 +0200 Subject: Btrfs: avoid waiting for delayed refs when we must not We track two conditions to decide if we should sleep while waiting for more delayed refs, the number of delayed refs (num_refs) and the first entry in the list of blockers (first_seq). When we suspect staleness, we save num_refs and do one more cycle. If nothing changes, we then save first_seq for later comparison and do wait_event. We ought to save first_seq the very same moment we're saving num_refs. Otherwise we cannot be sure that nothing has changed and we might start waiting when we shouldn't, which could lead to starvation. Signed-off-by: Jan Schmidt --- fs/btrfs/extent-tree.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/fs/btrfs/extent-tree.c b/fs/btrfs/extent-tree.c index 4b5a1e1bdefb..6e1d36702ff7 100644 --- a/fs/btrfs/extent-tree.c +++ b/fs/btrfs/extent-tree.c @@ -2347,12 +2347,10 @@ next: return count; } - static void wait_for_more_refs(struct btrfs_delayed_ref_root *delayed_refs, - unsigned long num_refs) + unsigned long num_refs, + struct list_head *first_seq) { - struct list_head *first_seq = delayed_refs->seq_head.next; - spin_unlock(&delayed_refs->lock); pr_debug("waiting for more refs (num %ld, first %p)\n", num_refs, first_seq); @@ -2381,6 +2379,7 @@ int btrfs_run_delayed_refs(struct btrfs_trans_handle *trans, struct btrfs_delayed_ref_root *delayed_refs; struct btrfs_delayed_ref_node *ref; struct list_head cluster; + struct list_head *first_seq = NULL; int ret; u64 delayed_start; int run_all = count == (unsigned long)-1; @@ -2436,8 +2435,10 @@ again: */ consider_waiting = 1; num_refs = delayed_refs->num_entries; + first_seq = root->fs_info->tree_mod_seq_list.next; } else { - wait_for_more_refs(delayed_refs, num_refs); + wait_for_more_refs(delayed_refs, + num_refs, first_seq); /* * after waiting, things have changed. we * dropped the lock and someone else might have -- cgit v1.2.3-59-g8ed1b From 9345457f4a539a40056431aeb6f068750857472f Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Wed, 27 Jun 2012 15:23:09 +0200 Subject: Btrfs: support root level changes in __resolve_indirect_ref With the tree mod log, we can have a tree that's two levels high, but btrfs_search_old_slot may still return a path with the tree root at level one instead. __resolve_indirect_ref must care for this and accept parents in a lower level than expected. Signed-off-by: Jan Schmidt --- fs/btrfs/backref.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index 7301cdb4b2cb..cf0df904347f 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -301,10 +301,14 @@ static int __resolve_indirect_ref(struct btrfs_fs_info *fs_info, goto out; eb = path->nodes[level]; - if (!eb) { - WARN_ON(1); - ret = 1; - goto out; + while (!eb) { + if (!level) { + WARN_ON(1); + ret = 1; + goto out; + } + level--; + eb = path->nodes[level]; } ret = add_all_parents(root, path, parents, level, &ref->key_for_search, -- cgit v1.2.3-59-g8ed1b From 28da9fb4467f7a650cd31af6dfad3a4e4a3abf6e Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Thu, 21 Jun 2012 10:59:13 +0200 Subject: Btrfs: fix tree mod log for root replacements at leaf level For the tree mod log, we don't log any operations at leaf level. If the root is at the leaf level (i.e. the tree consists only of the root), then __tree_mod_log_oldest_root will find a ROOT_REPLACE operation in the log (because we always log that one no matter which level), but no other operations. With this patch __tree_mod_log_oldest_root exits cleanly instead of BUGging in this situation. get_old_root checks if its really a root at leaf level in case we don't have any operations and WARNs if this assumption breaks. Signed-off-by: Jan Schmidt --- fs/btrfs/ctree.c | 28 +++++++++++++++------------- 1 file changed, 15 insertions(+), 13 deletions(-) diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 15cbc2bf4ff0..7d1e4fc5fb6a 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1024,11 +1024,18 @@ __tree_mod_log_oldest_root(struct btrfs_fs_info *fs_info, if (!looped && !tm) return 0; /* - * we must have key remove operations in the log before the - * replace operation. + * if there are no tree operation for the oldest root, we simply + * return it. this should only happen if that (old) root is at + * level 0. */ - BUG_ON(!tm); + if (!tm) + break; + /* + * if there's an operation that's not a root replacement, we + * found the oldest version of our root. normally, we'll find a + * MOD_LOG_KEY_REMOVE_WHILE_FREEING operation here. + */ if (tm->op != MOD_LOG_ROOT_REPLACE) break; @@ -1192,16 +1199,8 @@ get_old_root(struct btrfs_root *root, u64 time_seq) } tm = tree_mod_log_search(root->fs_info, logical, time_seq); - /* - * there was an item in the log when __tree_mod_log_oldest_root - * returned. this one must not go away, because the time_seq passed to - * us must be blocking its removal. - */ - BUG_ON(!tm); - if (old_root) - eb = alloc_dummy_extent_buffer(tm->index << PAGE_CACHE_SHIFT, - root->nodesize); + eb = alloc_dummy_extent_buffer(logical, root->nodesize); else eb = btrfs_clone_extent_buffer(root->node); btrfs_tree_read_unlock(root->node); @@ -1216,7 +1215,10 @@ get_old_root(struct btrfs_root *root, u64 time_seq) btrfs_set_header_level(eb, old_root->level); btrfs_set_header_generation(eb, old_generation); } - __tree_mod_log_rewind(eb, time_seq, tm); + if (tm) + __tree_mod_log_rewind(eb, time_seq, tm); + else + WARN_ON(btrfs_header_level(eb) != 0); extent_buffer_get(eb); return eb; -- cgit v1.2.3-59-g8ed1b From c3e0696523862c48b4d8c73ffb2867e9db478338 Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Thu, 21 Jun 2012 11:01:06 +0200 Subject: Btrfs: always put insert_ptr modifications into the tree mod log Several callers of insert_ptr set the tree_mod_log parameter to 0 to avoid addition to the tree mod log. In fact, we need all of those operations. This commit simply removes the additional parameter and makes addition to the tree mod log unconditional. Signed-off-by: Jan Schmidt --- fs/btrfs/ctree.c | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index 7d1e4fc5fb6a..e005d9b04616 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -2997,7 +2997,7 @@ static noinline int insert_new_root(struct btrfs_trans_handle *trans, static void insert_ptr(struct btrfs_trans_handle *trans, struct btrfs_root *root, struct btrfs_path *path, struct btrfs_disk_key *key, u64 bytenr, - int slot, int level, int tree_mod_log) + int slot, int level) { struct extent_buffer *lower; int nritems; @@ -3010,7 +3010,7 @@ static void insert_ptr(struct btrfs_trans_handle *trans, BUG_ON(slot > nritems); BUG_ON(nritems == BTRFS_NODEPTRS_PER_BLOCK(root)); if (slot != nritems) { - if (tree_mod_log && level) + if (level) tree_mod_log_eb_move(root->fs_info, lower, slot + 1, slot, nritems - slot); memmove_extent_buffer(lower, @@ -3018,7 +3018,7 @@ static void insert_ptr(struct btrfs_trans_handle *trans, btrfs_node_key_ptr_offset(slot), (nritems - slot) * sizeof(struct btrfs_key_ptr)); } - if (tree_mod_log && level) { + if (level) { ret = tree_mod_log_insert_key(root->fs_info, lower, slot, MOD_LOG_KEY_ADD); BUG_ON(ret < 0); @@ -3106,7 +3106,7 @@ static noinline int split_node(struct btrfs_trans_handle *trans, btrfs_mark_buffer_dirty(split); insert_ptr(trans, root, path, &disk_key, split->start, - path->slots[level + 1] + 1, level + 1, 1); + path->slots[level + 1] + 1, level + 1); if (path->slots[level] >= mid) { path->slots[level] -= mid; @@ -3643,7 +3643,7 @@ static noinline void copy_for_split(struct btrfs_trans_handle *trans, btrfs_set_header_nritems(l, mid); btrfs_item_key(right, &disk_key, 0); insert_ptr(trans, root, path, &disk_key, right->start, - path->slots[1] + 1, 1, 0); + path->slots[1] + 1, 1); btrfs_mark_buffer_dirty(right); btrfs_mark_buffer_dirty(l); @@ -3850,7 +3850,7 @@ again: if (mid <= slot) { btrfs_set_header_nritems(right, 0); insert_ptr(trans, root, path, &disk_key, right->start, - path->slots[1] + 1, 1, 0); + path->slots[1] + 1, 1); btrfs_tree_unlock(path->nodes[0]); free_extent_buffer(path->nodes[0]); path->nodes[0] = right; @@ -3859,7 +3859,7 @@ again: } else { btrfs_set_header_nritems(right, 0); insert_ptr(trans, root, path, &disk_key, right->start, - path->slots[1], 1, 0); + path->slots[1], 1); btrfs_tree_unlock(path->nodes[0]); free_extent_buffer(path->nodes[0]); path->nodes[0] = right; -- cgit v1.2.3-59-g8ed1b From 155725c9c051a343be5e555bf943da827e6cf721 Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Fri, 22 Jun 2012 14:01:00 +0200 Subject: Btrfs: leave critical region in btrfs_find_all_roots as soon as possible When delayed refs exist, btrfs_find_all_roots used to hold the delayed ref mutex way longer than actually required. We ought to drop it immediately after we're done collecting all the delayed refs. Signed-off-by: Jan Schmidt --- fs/btrfs/backref.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/fs/btrfs/backref.c b/fs/btrfs/backref.c index cf0df904347f..a383c18e74e8 100644 --- a/fs/btrfs/backref.c +++ b/fs/btrfs/backref.c @@ -839,6 +839,7 @@ again: } ret = __add_delayed_refs(head, delayed_ref_seq, &prefs_delayed); + mutex_unlock(&head->mutex); if (ret) { spin_unlock(&delayed_refs->lock); goto out; @@ -932,8 +933,6 @@ again: } out: - if (head) - mutex_unlock(&head->mutex); btrfs_free_path(path); while (!list_empty(&prefs)) { ref = list_first_entry(&prefs, struct __prelim_ref, list); -- cgit v1.2.3-59-g8ed1b From 19956c7e94a7a58d6df8c4db5ae62f9109a7c663 Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Fri, 22 Jun 2012 14:52:13 +0200 Subject: Btrfs: fix tree mod log rewind of ADD operations When a MOD_LOG_KEY_ADD operation is rewinded, we remove the key from the tree block. If its not the last key, removal involves a move operation. This move operation was explicitly done before this commit. However, at insertion time, there's a move operation before the actual addition to make room for the new key, which is recorded in the tree mod log as well. This means, we must drop the move operation when rewinding the add operation, because the next operation we'll be rewinding will be the corresponding MOD_LOG_MOVE_KEYS operation. Signed-off-by: Jan Schmidt --- fs/btrfs/ctree.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index e005d9b04616..b98f8604f4f6 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -1094,11 +1094,7 @@ __tree_mod_log_rewind(struct extent_buffer *eb, u64 time_seq, tm->generation); break; case MOD_LOG_KEY_ADD: - if (tm->slot != n - 1) { - o_dst = btrfs_node_key_ptr_offset(tm->slot); - o_src = btrfs_node_key_ptr_offset(tm->slot + 1); - memmove_extent_buffer(eb, o_dst, o_src, p_size); - } + /* if a move operation is needed it's in the log */ n--; break; case MOD_LOG_MOVE_KEYS: -- cgit v1.2.3-59-g8ed1b From d42244a0d36ad0939c5f173ebf15841a0678899c Mon Sep 17 00:00:00 2001 From: Jan Schmidt Date: Fri, 22 Jun 2012 14:51:15 +0200 Subject: Btrfs: resolve tree mod log locking issue in btrfs_next_leaf With the tree mod log, we may end up with two roots (the current root and a rewinded version of it) both pointing to two leaves, l1 and l2, of which l2 had already been cow-ed in the current transaction. If we don't rewind any tree blocks, we cannot have two roots both pointing to an already cowed tree block. Now there is btrfs_next_leaf, which has a leaf locked and wants a lock on the next (right) leaf. And there is push_leaf_left, which has a (cowed!) leaf locked and wants a lock on the previous (left) leaf. In order to solve this dead lock situation, we use try_lock in btrfs_next_leaf (only in case it's called with a tree mod log time_seq paramter) and if we fail to get a lock on the next leaf, we give up our lock on the current leaf and retry from the very beginning. Signed-off-by: Jan Schmidt --- fs/btrfs/ctree.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/fs/btrfs/ctree.c b/fs/btrfs/ctree.c index b98f8604f4f6..8206b3900587 100644 --- a/fs/btrfs/ctree.c +++ b/fs/btrfs/ctree.c @@ -5119,6 +5119,18 @@ again: if (!path->skip_locking) { ret = btrfs_try_tree_read_lock(next); + if (!ret && time_seq) { + /* + * If we don't get the lock, we may be racing + * with push_leaf_left, holding that lock while + * itself waiting for the leaf we've currently + * locked. To solve this situation, we give up + * on our lock and cycle. + */ + btrfs_release_path(path); + cond_resched(); + goto again; + } if (!ret) { btrfs_set_path_blocking(path); btrfs_tree_read_lock(next); -- cgit v1.2.3-59-g8ed1b From e90b833ee1aae64b6fca2455001323ffe29e1698 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Mon, 25 Jun 2012 12:38:23 -0500 Subject: ARM: OMAP4470: Fix OMAP4470 boot failure OMAP4470 currently fails to boot, printing various messages such as ... omap_hwmod: mpu: cannot clk_get main_clk dpll_mpu_m2_ck omap_hwmod: mpu: cannot _init_clocks ------------[ cut here ]------------ WARNING: at arch/arm/mach-omap2/omap_hwmod.c:2062 _init+0x2a0/0x2e4() omap_hwmod: mpu: couldn't init clocks Modules linked in: [] (unwind_backtrace+0x0/0xf4) from [] (warn_slowpath_common+0x4c/0x64) [] (warn_slowpath_common+0x4c/0x64) from [] (warn_slowpath_fmt+0x30/0x40) [] (warn_slowpath_fmt+0x30/0x40) from [] (_init+0x2a0/0x2e4) [] (_init+0x2a0/0x2e4) from [] (omap_hwmod_setup_one+0x40/0x60) [] (omap_hwmod_setup_one+0x40/0x60) from [] (omap_hwmod_setup_one+0x34/0x60) [] (omap_hwmod_setup_one+0x34/0x60) from [] (omap_dm_timer_init_one+0x30/0x250) [] (omap_dm_timer_init_one+0x30/0x250) from [] (omap2_gp_clockevent_init+0x1c/0x108) [] (omap2_gp_clockevent_init+0x1c/0x108) from [] (omap4_timer_init+0x10/0x5c) [] (omap4_timer_init+0x10/0x5c) from [] (time_init+0x20/0x30) [] (time_init+0x20/0x30) from [] (start_kernel+0x1b0/0x304) [] (start_kernel+0x1b0/0x304) from [<80008044>] (0x80008044) ---[ end trace 1b75b31a2719ed1c ]--- The problem is that currently none of the clocks are being registered for OMAP4470 devices and so on boot-up no clocks can be found and the kernel panics. This fix allows the kernel to boot without failure using a simple RAMDISK file system on OMAP4470 blaze board. Per feedback from Paul and Benoit the 4470 clock data is incomplete for new modules such as the 2D graphics block that has been added to the 4470. Therefore add a warning to indicate that the clock data is incomplete. Cc: Paul Walmsley Cc: Benoit Cousson Signed-off-by: Jon Hunter [tony@atomide.com: updated comments] Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/clock44xx_data.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c index e2b701e164f6..ba6f9a0a43e9 100644 --- a/arch/arm/mach-omap2/clock44xx_data.c +++ b/arch/arm/mach-omap2/clock44xx_data.c @@ -3417,9 +3417,12 @@ int __init omap4xxx_clk_init(void) if (cpu_is_omap443x()) { cpu_mask = RATE_IN_4430; cpu_clkflg = CK_443X; - } else if (cpu_is_omap446x()) { + } else if (cpu_is_omap446x() || cpu_is_omap447x()) { cpu_mask = RATE_IN_4460 | RATE_IN_4430; cpu_clkflg = CK_446X | CK_443X; + + if (cpu_is_omap447x()) + pr_warn("WARNING: OMAP4470 clock data incomplete!\n"); } else { return 0; } -- cgit v1.2.3-59-g8ed1b From 75cc52358799bd6001e7d1a47847f997f5ae99f0 Mon Sep 17 00:00:00 2001 From: Deepthi Dharwar Date: Mon, 25 Jun 2012 23:59:54 +0200 Subject: PM / ACPI: Fix suspend/resume regression caused by cpuidle cleanup. Commit e978aa7d7d57d04eb5f88a7507c4fb98577def77 ( cpuidle: Move dev->last_residency update to driver enter routine; remove dev->last_state) was breaking suspend on laptops, as reported in the below link - https://lkml.org/lkml/2011/11/11/164 This was fixed in commit 3439a8da16bcad6b0982ece938c9f8299bb53584 (ACPI / cpuidle: Remove acpi_idle_suspend (to fix suspend regression) by removing acpi_idle_suspend flag. - https://lkml.org/lkml/2011/11/14/74 But this did fix did not work on all systems as Suspend/resume regression was reported on Lenovo S10-3 recently by Dave. - https://lkml.org/lkml/2012/5/27/115 It looked like with commit e978aa7d broke suspend and with commit 3439a8da resume was not working with acpi_idle driver. This patch fixes the regression that caused this issue in the first place. acpi_idle_suspend flag is essential on some x86 systems to prevent the cpus from going to deeper C-states when suspend is triggered ( commit b04e7bdb984 ) So reverting the commit 3439a8da is essential. By default, irqs are disabled in cpu_idle arch specific call and re-enabled in idle state return path . During suspend, the acpi_idle_suspend flag is set, which prevents the cpus from going to deeper idle states, it is essential to enabling the irqs in this return path too. To address the suspend issue, we were not re-enabling the interrupts while returning from acpi_idle_enter_bm() routine if acpi_idle_suspend flag is set. and this caused suspend failure. In addition to the above, to improve the readability of the code, return of -ENIVAL is replaced with -EBUSY in acpi_idle_suspend return path. Implying that the system is currently busy when suspend is in progress, which prevents the cpus from entering deeper C-states. Reported-and-Tested-by: Dav Hansen Tested-by: Preeti Murthy Signed-off-by: Deepthi Dharwar Reviewed-by: Srivatsa S Bhat Signed-off-by: Rafael J. Wysocki --- drivers/acpi/processor_idle.c | 32 ++++++++++++++++++++++++++++++-- 1 file changed, 30 insertions(+), 2 deletions(-) diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index f3decb30223f..47a8caa89dbe 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -224,6 +224,7 @@ static void lapic_timer_state_broadcast(struct acpi_processor *pr, /* * Suspend / resume control */ +static int acpi_idle_suspend; static u32 saved_bm_rld; static void acpi_idle_bm_rld_save(void) @@ -242,13 +243,21 @@ static void acpi_idle_bm_rld_restore(void) int acpi_processor_suspend(struct acpi_device * device, pm_message_t state) { + if (acpi_idle_suspend == 1) + return 0; + acpi_idle_bm_rld_save(); + acpi_idle_suspend = 1; return 0; } int acpi_processor_resume(struct acpi_device * device) { + if (acpi_idle_suspend == 0) + return 0; + acpi_idle_bm_rld_restore(); + acpi_idle_suspend = 0; return 0; } @@ -754,6 +763,12 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev, local_irq_disable(); + if (acpi_idle_suspend) { + local_irq_enable(); + cpu_relax(); + return -EBUSY; + } + lapic_timer_state_broadcast(pr, cx, 1); kt1 = ktime_get_real(); acpi_idle_do_entry(cx); @@ -823,6 +838,12 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, local_irq_disable(); + if (acpi_idle_suspend) { + local_irq_enable(); + cpu_relax(); + return -EBUSY; + } + if (cx->entry_method != ACPI_CSTATE_FFH) { current_thread_info()->status &= ~TS_POLLING; /* @@ -907,14 +928,21 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, drv, drv->safe_state_index); } else { local_irq_disable(); - acpi_safe_halt(); + if (!acpi_idle_suspend) + acpi_safe_halt(); local_irq_enable(); - return -EINVAL; + return -EBUSY; } } local_irq_disable(); + if (acpi_idle_suspend) { + local_irq_enable(); + cpu_relax(); + return -EBUSY; + } + if (cx->entry_method != ACPI_CSTATE_FFH) { current_thread_info()->status &= ~TS_POLLING; /* -- cgit v1.2.3-59-g8ed1b From 7aa1e7f06d6ea1bce3b27630d50769d13da28b1a Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Wed, 27 Jun 2012 16:43:36 +0200 Subject: Revert "drm/i915: allow PCH PWM override on IVB" This reverts commit f82cfb6bcda164ef3a66b8c3fc549b1f9bdd09ad. This breaks the backlight controls on my IVB asus zenbook with an eDP panel. I guess the right fix would be to read this bit and use either the pch or the cpu register to frob the backlight values. But that is stuff for -next. Cc: Jesse Barnes Signed-Off-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_display.c | 16 ---------------- 1 file changed, 16 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index a7c727d0c105..a8538ac0299d 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -6921,19 +6921,6 @@ static void i915_disable_vga(struct drm_device *dev) POSTING_READ(vga_reg); } -static void ivb_pch_pwm_override(struct drm_device *dev) -{ - struct drm_i915_private *dev_priv = dev->dev_private; - - /* - * IVB has CPU eDP backlight regs too, set things up to let the - * PCH regs control the backlight - */ - I915_WRITE(BLC_PWM_CPU_CTL2, PWM_ENABLE); - I915_WRITE(BLC_PWM_CPU_CTL, 0); - I915_WRITE(BLC_PWM_PCH_CTL1, PWM_ENABLE | (1<<30)); -} - void intel_modeset_init_hw(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; @@ -6950,9 +6937,6 @@ void intel_modeset_init_hw(struct drm_device *dev) gen6_enable_rps(dev_priv); gen6_update_ring_freq(dev_priv); } - - if (IS_IVYBRIDGE(dev)) - ivb_pch_pwm_override(dev); } void intel_modeset_init(struct drm_device *dev) -- cgit v1.2.3-59-g8ed1b From f63d7dabd5da9ef41f28f6d69b29bc084db0ca5a Mon Sep 17 00:00:00 2001 From: Larry Finger Date: Mon, 25 Jun 2012 18:01:12 -0500 Subject: rtlwifi: rtl8192cu: New USB IDs The latest Realtek driver for the RTL8188CU and RTL8192CU chips adds three new USB IDs. Reported-by: Xose Vazquez Perez Signed-off-by: Larry Finger Cc: Stable Signed-off-by: John W. Linville --- drivers/net/wireless/rtlwifi/rtl8192cu/sw.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c index d228358e6a40..9970c2b1b199 100644 --- a/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c +++ b/drivers/net/wireless/rtlwifi/rtl8192cu/sw.c @@ -301,9 +301,11 @@ static struct usb_device_id rtl8192c_usb_ids[] = { {RTL_USB_DEVICE(0x07b8, 0x8188, rtl92cu_hal_cfg)}, /*Abocom - Abocom*/ {RTL_USB_DEVICE(0x07b8, 0x8189, rtl92cu_hal_cfg)}, /*Funai - Abocom*/ {RTL_USB_DEVICE(0x0846, 0x9041, rtl92cu_hal_cfg)}, /*NetGear WNA1000M*/ + {RTL_USB_DEVICE(0x0bda, 0x5088, rtl92cu_hal_cfg)}, /*Thinkware-CC&C*/ {RTL_USB_DEVICE(0x0df6, 0x0052, rtl92cu_hal_cfg)}, /*Sitecom - Edimax*/ {RTL_USB_DEVICE(0x0df6, 0x005c, rtl92cu_hal_cfg)}, /*Sitecom - Edimax*/ {RTL_USB_DEVICE(0x0eb0, 0x9071, rtl92cu_hal_cfg)}, /*NO Brand - Etop*/ + {RTL_USB_DEVICE(0x4856, 0x0091, rtl92cu_hal_cfg)}, /*NetweeN - Feixun*/ /* HP - Lite-On ,8188CUS Slim Combo */ {RTL_USB_DEVICE(0x103c, 0x1629, rtl92cu_hal_cfg)}, {RTL_USB_DEVICE(0x13d3, 0x3357, rtl92cu_hal_cfg)}, /* AzureWave */ @@ -346,6 +348,7 @@ static struct usb_device_id rtl8192c_usb_ids[] = { {RTL_USB_DEVICE(0x07b8, 0x8178, rtl92cu_hal_cfg)}, /*Funai -Abocom*/ {RTL_USB_DEVICE(0x0846, 0x9021, rtl92cu_hal_cfg)}, /*Netgear-Sercomm*/ {RTL_USB_DEVICE(0x0b05, 0x17ab, rtl92cu_hal_cfg)}, /*ASUS-Edimax*/ + {RTL_USB_DEVICE(0x0bda, 0x8186, rtl92cu_hal_cfg)}, /*Realtek 92CE-VAU*/ {RTL_USB_DEVICE(0x0df6, 0x0061, rtl92cu_hal_cfg)}, /*Sitecom-Edimax*/ {RTL_USB_DEVICE(0x0e66, 0x0019, rtl92cu_hal_cfg)}, /*Hawking-Edimax*/ {RTL_USB_DEVICE(0x2001, 0x3307, rtl92cu_hal_cfg)}, /*D-Link-Cameo*/ -- cgit v1.2.3-59-g8ed1b From 7508b657967cf664b5aa0f6367d05016e7e3bc2a Mon Sep 17 00:00:00 2001 From: Panayiotis Karabassis Date: Tue, 26 Jun 2012 23:37:17 +0300 Subject: ath9k: enable serialize_regmode for non-PCIE AR9287 https://bugzilla.kernel.org/show_bug.cgi?id=42903 Based on the work of Signed-off-by: Panayiotis Karabassis Cc: stable@vger.kernel.org Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/hw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/wireless/ath/ath9k/hw.c b/drivers/net/wireless/ath/ath9k/hw.c index 1c68e564f503..995ca8e1302e 100644 --- a/drivers/net/wireless/ath/ath9k/hw.c +++ b/drivers/net/wireless/ath/ath9k/hw.c @@ -622,7 +622,7 @@ static int __ath9k_hw_init(struct ath_hw *ah) if (NR_CPUS > 1 && ah->config.serialize_regmode == SER_REG_MODE_AUTO) { if (ah->hw_version.macVersion == AR_SREV_VERSION_5416_PCI || - ((AR_SREV_9160(ah) || AR_SREV_9280(ah)) && + ((AR_SREV_9160(ah) || AR_SREV_9280(ah) || AR_SREV_9287(ah)) && !ah->is_pciexpress)) { ah->config.serialize_regmode = SER_REG_MODE_ON; -- cgit v1.2.3-59-g8ed1b From 4b5ebccc40843104d980f0714bc86bfcd5568941 Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Wed, 27 Jun 2012 15:38:56 +0200 Subject: mac80211: correct behaviour on unrecognised action frames When receiving an "individually addressed" action frame, the receiver is required to return it to the sender. mac80211 gets this wrong as it also returns group addressed (mcast) frames to the sender. Fix this and update the reference to the new 802.11 standards version since things were shuffled around significantly. Cc: stable@kernel.org Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/rx.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 7bcecf73aafb..965e6ec0adb6 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -2455,7 +2455,7 @@ ieee80211_rx_h_action_return(struct ieee80211_rx_data *rx) * frames that we didn't handle, including returning unknown * ones. For all other modes we will return them to the sender, * setting the 0x80 bit in the action category, as required by - * 802.11-2007 7.3.1.11. + * 802.11-2012 9.24.4. * Newer versions of hostapd shall also use the management frame * registration mechanisms, but older ones still use cooked * monitor interfaces so push all frames there. @@ -2465,6 +2465,9 @@ ieee80211_rx_h_action_return(struct ieee80211_rx_data *rx) sdata->vif.type == NL80211_IFTYPE_AP_VLAN)) return RX_DROP_MONITOR; + if (is_multicast_ether_addr(mgmt->da)) + return RX_DROP_MONITOR; + /* do not return rejected action frames */ if (mgmt->u.action.category & 0x80) return RX_DROP_UNUSABLE; -- cgit v1.2.3-59-g8ed1b From 6bb51c70cabaadddc54a6454844eceba91a56083 Mon Sep 17 00:00:00 2001 From: Tom Hughes Date: Wed, 27 Jun 2012 18:21:15 +0100 Subject: ath9k: fix panic caused by returning a descriptor we have queued for reuse Commit 3a2923e83c introduced a bug when a corrupt descriptor is encountered - although the following descriptor is discarded and returned to the queue for reuse the associated frame is also returned for processing. This leads to a panic: BUG: unable to handle kernel NULL pointer dereference at 000000000000003a IP: [] ath_rx_tasklet+0x165/0x1b00 [ath9k] Call Trace: [] ? map_single+0x60/0x60 [] ? ath9k_ioread32+0x34/0x90 [ath9k] [] athk9k_tasklet+0xdc/0x160 [ath9k] [] tasklet_action+0x63/0xd0 [] __do_softirq+0xc0/0x1e0 [] ? native_sched_clock+0x13/0x80 [] call_softirq+0x1c/0x30 [] do_softirq+0x75/0xb0 [] irq_exit+0xb5/0xc0 [] do_IRQ+0x63/0xe0 [] common_interrupt+0x6a/0x6a [] ? intel_idle+0xea/0x150 [] ? intel_idle+0xcb/0x150 [] cpuidle_enter+0x19/0x20 [] cpuidle_idle_call+0xa9/0x240 [] cpu_idle+0xaf/0x120 [] rest_init+0x72/0x74 [] start_kernel+0x3b7/0x3c4 [] ? repair_env_string+0x5e/0x5e [] x86_64_start_reservations+0x131/0x135 [] x86_64_start_kernel+0x100/0x10f Making sure bf is cleared to NULL in this case restores the old behaviour. Signed-off-by: Tom Hughes Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/recv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/recv.c b/drivers/net/wireless/ath/ath9k/recv.c index 599667ababee..0735aeb3b26c 100644 --- a/drivers/net/wireless/ath/ath9k/recv.c +++ b/drivers/net/wireless/ath/ath9k/recv.c @@ -695,9 +695,9 @@ static bool ath_edma_get_buffers(struct ath_softc *sc, __skb_unlink(skb, &rx_edma->rx_fifo); list_add_tail(&bf->list, &sc->rx.rxbuf); ath_rx_edma_buf_link(sc, qtype); - } else { - bf = NULL; } + + bf = NULL; } *dest = bf; -- cgit v1.2.3-59-g8ed1b From 6b44695e100ab12f4b2294d834d0b7944d353120 Mon Sep 17 00:00:00 2001 From: Dave Jones Date: Tue, 26 Jun 2012 19:56:10 -0400 Subject: chmod +x scripts/gfp-translate This script lacks an executable bit. Signed-off-by: Dave Jones Signed-off-by: Linus Torvalds --- scripts/gfp-translate | 0 1 file changed, 0 insertions(+), 0 deletions(-) mode change 100644 => 100755 scripts/gfp-translate diff --git a/scripts/gfp-translate b/scripts/gfp-translate old mode 100644 new mode 100755 -- cgit v1.2.3-59-g8ed1b From c9015b24b262bc7ea56cfd5d78983a73fb5ebd7d Mon Sep 17 00:00:00 2001 From: Avinash Patil Date: Wed, 27 Jun 2012 12:46:24 -0700 Subject: mwifiex: fix memory leak associated with IE manamgement Free ap_custom_ie before return from function. Signed-off-by: Avinash Patil Signed-off-by: Bing Zhao Signed-off-by: John W. Linville --- drivers/net/wireless/mwifiex/ie.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/wireless/mwifiex/ie.c b/drivers/net/wireless/mwifiex/ie.c index ceb82cd749cc..383820a52beb 100644 --- a/drivers/net/wireless/mwifiex/ie.c +++ b/drivers/net/wireless/mwifiex/ie.c @@ -213,6 +213,7 @@ mwifiex_update_uap_custom_ie(struct mwifiex_private *priv, /* save assoc resp ie index after auto-indexing */ *assoc_idx = *((u16 *)pos); + kfree(ap_custom_ie); return ret; } -- cgit v1.2.3-59-g8ed1b From d31bb4f0621756528d11d310c44cd8076b22bc03 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 26 Jun 2012 23:01:41 +0000 Subject: 9p: fix min_t() casting in p9pdu_vwritef() I don't think we're actually likely to hit this limit but if we do then the comparison should be done as size_t. The original code is equivalent to: len = strlen(sptr) % USHRT_MAX; Signed-off-by: Dan Carpenter Signed-off-by: David S. Miller --- net/9p/protocol.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/9p/protocol.c b/net/9p/protocol.c index 9ee48cb30179..3d33ecf13327 100644 --- a/net/9p/protocol.c +++ b/net/9p/protocol.c @@ -368,7 +368,7 @@ p9pdu_vwritef(struct p9_fcall *pdu, int proto_version, const char *fmt, const char *sptr = va_arg(ap, const char *); uint16_t len = 0; if (sptr) - len = min_t(uint16_t, strlen(sptr), + len = min_t(size_t, strlen(sptr), USHRT_MAX); errcode = p9pdu_writef(pdu, proto_version, -- cgit v1.2.3-59-g8ed1b From bc404e9128dd69654f5fda6320fc6af4ee94474c Mon Sep 17 00:00:00 2001 From: Guennadi Liakhovetski Date: Wed, 27 Jun 2012 11:26:34 +0200 Subject: sh: kfr2r09: fix compile breakage Fix compile breakage caused by commit aa82f9fcd0062782dcbe29a2c820ba7c04dbe572 Author: Paul Mundt sh: kfr2r09 evt2irq migration. Signed-off-by: Guennadi Liakhovetski Signed-off-by: Paul Mundt --- arch/sh/boards/mach-kfr2r09/setup.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/sh/boards/mach-kfr2r09/setup.c b/arch/sh/boards/mach-kfr2r09/setup.c index 158c9176e42a..43a179ce9afc 100644 --- a/arch/sh/boards/mach-kfr2r09/setup.c +++ b/arch/sh/boards/mach-kfr2r09/setup.c @@ -201,8 +201,8 @@ static struct resource kfr2r09_usb0_gadget_resources[] = { .flags = IORESOURCE_MEM, }, [1] = { - .start = evtirq(0xa20), - .end = evtirq(0xa20), + .start = evt2irq(0xa20), + .end = evt2irq(0xa20), .flags = IORESOURCE_IRQ | IRQF_TRIGGER_LOW, }, }; -- cgit v1.2.3-59-g8ed1b From ad3337cb38bf1f4c677ce2d05f9c049b35f7147e Mon Sep 17 00:00:00 2001 From: Nobuhiro Iwamatsu Date: Wed, 27 Jun 2012 09:59:40 +0900 Subject: sh: Convert sh_clk_mstp32_register to sh_clk_mstp_register sh_clk_mstp32_register is deprecated. This convert to sh_clk_mstp_register. Signed-off-by: Nobuhiro Iwamatsu Signed-off-by: Paul Mundt --- arch/sh/drivers/pci/pcie-sh7786.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7343.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7366.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7722.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7723.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7724.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7734.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7757.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7785.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-sh7786.c | 2 +- arch/sh/kernel/cpu/sh4a/clock-shx3.c | 2 +- 11 files changed, 11 insertions(+), 11 deletions(-) diff --git a/arch/sh/drivers/pci/pcie-sh7786.c b/arch/sh/drivers/pci/pcie-sh7786.c index c045142f7338..9e702f2f8045 100644 --- a/arch/sh/drivers/pci/pcie-sh7786.c +++ b/arch/sh/drivers/pci/pcie-sh7786.c @@ -239,7 +239,7 @@ static int __init pcie_clk_init(struct sh7786_pcie_port *port) clk->enable_reg = (void __iomem *)(chan->reg_base + SH4A_PCIEPHYCTLR); clk->enable_bit = BITS_CKE; - ret = sh_clk_mstp32_register(clk, 1); + ret = sh_clk_mstp_register(clk, 1); if (unlikely(ret < 0)) goto err_phy; diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7343.c b/arch/sh/kernel/cpu/sh4a/clock-sh7343.c index ea01a72f1b94..53638e231cd0 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7343.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7343.c @@ -283,7 +283,7 @@ int __init arch_clk_init(void) ret = sh_clk_div6_register(div6_clks, DIV6_NR); if (!ret) - ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR); + ret = sh_clk_mstp_register(mstp_clks, MSTP_NR); return ret; } diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7366.c b/arch/sh/kernel/cpu/sh4a/clock-sh7366.c index 7ac07b4f75de..22e485d1990b 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7366.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7366.c @@ -276,7 +276,7 @@ int __init arch_clk_init(void) ret = sh_clk_div6_register(div6_clks, DIV6_NR); if (!ret) - ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR); + ret = sh_clk_mstp_register(mstp_clks, MSTP_NR); return ret; } diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c index 8e1f97010c0d..c4cb740e4d10 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7722.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7722.c @@ -261,7 +261,7 @@ int __init arch_clk_init(void) ret = sh_clk_div6_register(div6_clks, DIV6_NR); if (!ret) - ret = sh_clk_mstp32_register(mstp_clks, HWBLK_NR); + ret = sh_clk_mstp_register(mstp_clks, HWBLK_NR); return ret; } diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7723.c b/arch/sh/kernel/cpu/sh4a/clock-sh7723.c index 35f75cf0c7e5..37c41c7747a3 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7723.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7723.c @@ -311,7 +311,7 @@ int __init arch_clk_init(void) ret = sh_clk_div6_register(div6_clks, DIV6_NR); if (!ret) - ret = sh_clk_mstp32_register(mstp_clks, HWBLK_NR); + ret = sh_clk_mstp_register(mstp_clks, HWBLK_NR); return ret; } diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c index 2a87901673fe..c87e78f73234 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7724.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7724.c @@ -375,7 +375,7 @@ int __init arch_clk_init(void) ret = sh_clk_div6_reparent_register(div6_clks, DIV6_NR); if (!ret) - ret = sh_clk_mstp32_register(mstp_clks, HWBLK_NR); + ret = sh_clk_mstp_register(mstp_clks, HWBLK_NR); return ret; } diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7734.c b/arch/sh/kernel/cpu/sh4a/clock-sh7734.c index 1697642c1f73..deb683abacf0 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7734.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7734.c @@ -260,7 +260,7 @@ int __init arch_clk_init(void) &div4_table); if (!ret) - ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR); + ret = sh_clk_mstp_register(mstp_clks, MSTP_NR); return ret; } diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7757.c b/arch/sh/kernel/cpu/sh4a/clock-sh7757.c index 04ab5aeaf920..e84a43229b9c 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7757.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7757.c @@ -148,7 +148,7 @@ int __init arch_clk_init(void) ret = sh_clk_div4_register(div4_clks, ARRAY_SIZE(div4_clks), &div4_table); if (!ret) - ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR); + ret = sh_clk_mstp_register(mstp_clks, MSTP_NR); return ret; } diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7785.c b/arch/sh/kernel/cpu/sh4a/clock-sh7785.c index ab1c58f2d101..1c83788db76a 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7785.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7785.c @@ -175,7 +175,7 @@ int __init arch_clk_init(void) ret = sh_clk_div4_register(div4_clks, ARRAY_SIZE(div4_clks), &div4_table); if (!ret) - ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR); + ret = sh_clk_mstp_register(mstp_clks, MSTP_NR); return ret; } diff --git a/arch/sh/kernel/cpu/sh4a/clock-sh7786.c b/arch/sh/kernel/cpu/sh4a/clock-sh7786.c index 491709483e10..8bba6f159023 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-sh7786.c +++ b/arch/sh/kernel/cpu/sh4a/clock-sh7786.c @@ -194,7 +194,7 @@ int __init arch_clk_init(void) ret = sh_clk_div4_register(div4_clks, ARRAY_SIZE(div4_clks), &div4_table); if (!ret) - ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR); + ret = sh_clk_mstp_register(mstp_clks, MSTP_NR); return ret; } diff --git a/arch/sh/kernel/cpu/sh4a/clock-shx3.c b/arch/sh/kernel/cpu/sh4a/clock-shx3.c index 0f11b392bf46..a9422dab0ce7 100644 --- a/arch/sh/kernel/cpu/sh4a/clock-shx3.c +++ b/arch/sh/kernel/cpu/sh4a/clock-shx3.c @@ -149,7 +149,7 @@ int __init arch_clk_init(void) ret = sh_clk_div4_register(div4_clks, ARRAY_SIZE(div4_clks), &div4_table); if (!ret) - ret = sh_clk_mstp32_register(mstp_clks, MSTP_NR); + ret = sh_clk_mstp_register(mstp_clks, MSTP_NR); return ret; } -- cgit v1.2.3-59-g8ed1b From cb14d340ef1737c24125dd663eff77734a482d47 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 27 Jun 2012 20:08:44 +0200 Subject: udf: Use 'ret' instead of abusing 'i' in udf_load_logicalvol() Signed-off-by: Jan Kara --- fs/udf/super.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/fs/udf/super.c b/fs/udf/super.c index ac8a348dcb69..9da6f4ee112c 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -1233,11 +1233,9 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block, BUG_ON(ident != TAG_IDENT_LVD); lvd = (struct logicalVolDesc *)bh->b_data; - i = udf_sb_alloc_partition_maps(sb, le32_to_cpu(lvd->numPartitionMaps)); - if (i != 0) { - ret = i; + ret = udf_sb_alloc_partition_maps(sb, le32_to_cpu(lvd->numPartitionMaps)); + if (ret) goto out_bh; - } for (i = 0, offset = 0; i < sbi->s_partitions && offset < le32_to_cpu(lvd->mapTableLength); -- cgit v1.2.3-59-g8ed1b From adee11b2085bee90bd8f4f52123ffb07882d6256 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 27 Jun 2012 20:20:22 +0200 Subject: udf: Avoid run away loop when partition table length is corrupted Check provided length of partition table so that (possibly maliciously) corrupted partition table cannot cause accessing data beyond current buffer. Signed-off-by: Jan Kara --- fs/udf/super.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/fs/udf/super.c b/fs/udf/super.c index 9da6f4ee112c..ce911f50b39d 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -1225,6 +1225,7 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block, struct genericPartitionMap *gpm; uint16_t ident; struct buffer_head *bh; + unsigned int table_len; int ret = 0; bh = udf_read_tagged(sb, block, block, &ident); @@ -1232,13 +1233,20 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block, return 1; BUG_ON(ident != TAG_IDENT_LVD); lvd = (struct logicalVolDesc *)bh->b_data; + table_len = le32_to_cpu(lvd->mapTableLength); + if (sizeof(*lvd) + table_len > sb->s_blocksize) { + udf_err(sb, "error loading logical volume descriptor: " + "Partition table too long (%u > %lu)\n", table_len, + sb->s_blocksize - sizeof(*lvd)); + goto out_bh; + } ret = udf_sb_alloc_partition_maps(sb, le32_to_cpu(lvd->numPartitionMaps)); if (ret) goto out_bh; for (i = 0, offset = 0; - i < sbi->s_partitions && offset < le32_to_cpu(lvd->mapTableLength); + i < sbi->s_partitions && offset < table_len; i++, offset += gpm->partitionMapLength) { struct udf_part_map *map = &sbi->s_partmaps[i]; gpm = (struct genericPartitionMap *) -- cgit v1.2.3-59-g8ed1b From 1df2ae31c724e57be9d7ac00d78db8a5dabdd050 Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Wed, 27 Jun 2012 21:23:07 +0200 Subject: udf: Fortify loading of sparing table Add sanity checks when loading sparing table from disk to avoid accessing unallocated memory or writing to it. Signed-off-by: Jan Kara --- fs/udf/super.c | 86 ++++++++++++++++++++++++++++++++++++---------------------- 1 file changed, 53 insertions(+), 33 deletions(-) diff --git a/fs/udf/super.c b/fs/udf/super.c index ce911f50b39d..8d86a8706c0e 100644 --- a/fs/udf/super.c +++ b/fs/udf/super.c @@ -56,6 +56,7 @@ #include #include #include +#include #include #include "udf_sb.h" @@ -1215,11 +1216,59 @@ out_bh: return ret; } +static int udf_load_sparable_map(struct super_block *sb, + struct udf_part_map *map, + struct sparablePartitionMap *spm) +{ + uint32_t loc; + uint16_t ident; + struct sparingTable *st; + struct udf_sparing_data *sdata = &map->s_type_specific.s_sparing; + int i; + struct buffer_head *bh; + + map->s_partition_type = UDF_SPARABLE_MAP15; + sdata->s_packet_len = le16_to_cpu(spm->packetLength); + if (!is_power_of_2(sdata->s_packet_len)) { + udf_err(sb, "error loading logical volume descriptor: " + "Invalid packet length %u\n", + (unsigned)sdata->s_packet_len); + return -EIO; + } + if (spm->numSparingTables > 4) { + udf_err(sb, "error loading logical volume descriptor: " + "Too many sparing tables (%d)\n", + (int)spm->numSparingTables); + return -EIO; + } + + for (i = 0; i < spm->numSparingTables; i++) { + loc = le32_to_cpu(spm->locSparingTable[i]); + bh = udf_read_tagged(sb, loc, loc, &ident); + if (!bh) + continue; + + st = (struct sparingTable *)bh->b_data; + if (ident != 0 || + strncmp(st->sparingIdent.ident, UDF_ID_SPARING, + strlen(UDF_ID_SPARING)) || + sizeof(*st) + le16_to_cpu(st->reallocationTableLen) > + sb->s_blocksize) { + brelse(bh); + continue; + } + + sdata->s_spar_map[i] = bh; + } + map->s_partition_func = udf_get_pblock_spar15; + return 0; +} + static int udf_load_logicalvol(struct super_block *sb, sector_t block, struct kernel_lb_addr *fileset) { struct logicalVolDesc *lvd; - int i, j, offset; + int i, offset; uint8_t type; struct udf_sb_info *sbi = UDF_SB(sb); struct genericPartitionMap *gpm; @@ -1281,38 +1330,9 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block, } else if (!strncmp(upm2->partIdent.ident, UDF_ID_SPARABLE, strlen(UDF_ID_SPARABLE))) { - uint32_t loc; - struct sparingTable *st; - struct sparablePartitionMap *spm = - (struct sparablePartitionMap *)gpm; - - map->s_partition_type = UDF_SPARABLE_MAP15; - map->s_type_specific.s_sparing.s_packet_len = - le16_to_cpu(spm->packetLength); - for (j = 0; j < spm->numSparingTables; j++) { - struct buffer_head *bh2; - - loc = le32_to_cpu( - spm->locSparingTable[j]); - bh2 = udf_read_tagged(sb, loc, loc, - &ident); - map->s_type_specific.s_sparing. - s_spar_map[j] = bh2; - - if (bh2 == NULL) - continue; - - st = (struct sparingTable *)bh2->b_data; - if (ident != 0 || strncmp( - st->sparingIdent.ident, - UDF_ID_SPARING, - strlen(UDF_ID_SPARING))) { - brelse(bh2); - map->s_type_specific.s_sparing. - s_spar_map[j] = NULL; - } - } - map->s_partition_func = udf_get_pblock_spar15; + if (udf_load_sparable_map(sb, map, + (struct sparablePartitionMap *)gpm) < 0) + goto out_bh; } else if (!strncmp(upm2->partIdent.ident, UDF_ID_METADATA, strlen(UDF_ID_METADATA))) { -- cgit v1.2.3-59-g8ed1b From e5de32e3ec9d4d5a355659760d5045b80c0a05d8 Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Fri, 22 Jun 2012 16:41:00 +0100 Subject: watchdog: iTCO_wdt: add platform driver module alias The recent conversion of iTCO_wdt resulted in the driver no longer getting loaded automatically, since it no longer has a MODULE_DEVICE_TABLE() included. As the lpc_ich driver now creates a platform device, auto-loading can easily be done by having a respective module alias in place. Signed-off-by: Jan Beulich Cc: Aaron Sierra Acked-by: Guenter Roeck Cc: Samuel Ortiz Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/iTCO_wdt.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/watchdog/iTCO_wdt.c b/drivers/watchdog/iTCO_wdt.c index bc47e9012f37..9c2c27c3b424 100644 --- a/drivers/watchdog/iTCO_wdt.c +++ b/drivers/watchdog/iTCO_wdt.c @@ -699,3 +699,4 @@ MODULE_DESCRIPTION("Intel TCO WatchDog Timer Driver"); MODULE_VERSION(DRV_VERSION); MODULE_LICENSE("GPL"); MODULE_ALIAS_MISCDEV(WATCHDOG_MINOR); +MODULE_ALIAS("platform:" DRV_NAME); -- cgit v1.2.3-59-g8ed1b From a089361cf5f1d6a5295aa5385238bd044998e1e9 Mon Sep 17 00:00:00 2001 From: "Mingarelli, Thomas" Date: Tue, 26 Jun 2012 10:27:00 +0200 Subject: watchdog: hpwdt: Unregister NMI events on exit. This patch is to unregister for NMI events upon exit. Also we are now making the default setting for allow_kdump enabled. Signed-off-by: Thomas Mingarelli Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/hpwdt.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c index 2b763815aeec..1eff743ec497 100644 --- a/drivers/watchdog/hpwdt.c +++ b/drivers/watchdog/hpwdt.c @@ -146,7 +146,7 @@ struct cmn_registers { } __attribute__((packed)); static unsigned int hpwdt_nmi_decoding; -static unsigned int allow_kdump; +static unsigned int allow_kdump = 1; static unsigned int is_icru; static DEFINE_SPINLOCK(rom_lock); static void *cru_rom_addr; @@ -756,6 +756,8 @@ error: static void hpwdt_exit_nmi_decoding(void) { unregister_nmi_handler(NMI_UNKNOWN, "hpwdt"); + unregister_nmi_handler(NMI_SERR, "hpwdt"); + unregister_nmi_handler(NMI_IO_CHECK, "hpwdt"); if (cru_rom_addr) iounmap(cru_rom_addr); } -- cgit v1.2.3-59-g8ed1b From 8b9468d496abd357cc797b27a79d4402f5e0e94d Mon Sep 17 00:00:00 2001 From: Wim Van Sebroeck Date: Tue, 26 Jun 2012 20:07:21 +0200 Subject: watchdog: core: fix WDIOC_GETSTATUS return value In commit 7a87982420e5e126bfefeb42232d1fd92052794e we added a wrapper for the WDIOC_GETSTATUS ioctl call. The code results however in a different behaviour: it returns an error if the driver doesn't support the status operation. This is not according to the API that says that when we don't support the status operation, that we just should return a 0 value. Only when the device isn't there anymore, we should return an error. Signed-off-by: Wim Van Sebroeck --- drivers/watchdog/watchdog_dev.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/watchdog/watchdog_dev.c b/drivers/watchdog/watchdog_dev.c index 672d169bf1da..ef8edecfc526 100644 --- a/drivers/watchdog/watchdog_dev.c +++ b/drivers/watchdog/watchdog_dev.c @@ -349,7 +349,7 @@ static long watchdog_ioctl(struct file *file, unsigned int cmd, sizeof(struct watchdog_info)) ? -EFAULT : 0; case WDIOC_GETSTATUS: err = watchdog_get_status(wdd, &val); - if (err) + if (err == -ENODEV) return err; return put_user(val, p); case WDIOC_GETBOOTSTATUS: -- cgit v1.2.3-59-g8ed1b From d9b8706843a501034d09bea63ca6723a2ed02b11 Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Thu, 21 Jun 2012 23:11:18 +0000 Subject: net: qmi_wwan: fix Oops while disconnecting MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit usbnet_disconnect() will set intfdata to NULL before calling the minidriver unbind function. The cdc_wdm subdriver cannot know that it is disconnecting until the qmi_wwan unbind function has called its disconnect function. This means that we must be able to support the cdc_wdm subdriver operating normally while usbnet_disconnect() is running, and in particular that intfdata may be NULL. The only place this matters is in qmi_wwan_cdc_wdm_manage_power which is called from cdc_wdm. Simply testing for NULL intfdata there is sufficient to allow it to continue working at all times. Fixes this Oops where a cdc-wdm device was closed while the USB device was disconnecting, causing wdm_release to call qmi_wwan_cdc_wdm_manage_power after intfdata was set to NULL by usbnet_disconnect: [41819.087460] BUG: unable to handle kernel NULL pointer dereference at 00000080 [41819.087815] IP: [] qmi_wwan_manage_power+0x68/0x90 [qmi_wwan] [41819.088028] *pdpt = 000000000314f001 *pde = 0000000000000000 [41819.088028] Oops: 0002 [#1] SMP [41819.088028] Modules linked in: qmi_wwan option usb_wwan usbserial usbnet cdc_wdm nls_iso8859_1 nls_cp437 vfat fat usb_storage bnep rfcomm bluetooth parport_pc ppdev binfmt_misc iptable_nat nf_nat nf_conntrack_ipv4 nf_conntrack nf_defrag_ipv4 iptable_mangle iptable_filter ip_tables x_tables dm_crypt uvcvideo snd_hda_codec_realtek snd_hda_intel videobuf2_core snd_hda_codec joydev videodev videobuf2_vmalloc hid_multitouch snd_hwdep arc4 videobuf2_memops snd_pcm snd_seq_midi snd_rawmidi snd_seq_midi_event ath9k mac80211 snd_seq ath9k_common ath9k_hw ath snd_timer snd_seq_device sparse_keymap dm_multipath scsi_dh coretemp mac_hid snd soundcore cfg80211 snd_page_alloc psmouse serio_raw microcode lp parport dm_mirror dm_region_hash dm_log usbhid hid i915 drm_kms_helper drm r8169 i2c_algo_bit wmi video [last unloaded: qmi_wwan] [41819.088028] [41819.088028] Pid: 23292, comm: qmicli Not tainted 3.4.0-5-generic #11-Ubuntu GIGABYTE T1005/T1005 [41819.088028] EIP: 0060:[] EFLAGS: 00010246 CPU: 1 [41819.088028] EIP is at qmi_wwan_manage_power+0x68/0x90 [qmi_wwan] [41819.088028] EAX: 00000000 EBX: 00000000 ECX: 000000c3 EDX: 00000000 [41819.088028] ESI: c3b27658 EDI: 00000000 EBP: c298bea4 ESP: c298be98 [41819.088028] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 [41819.088028] CR0: 8005003b CR2: 00000080 CR3: 3605e000 CR4: 000007f0 [41819.088028] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 [41819.088028] DR6: ffff0ff0 DR7: 00000400 [41819.088028] Process qmicli (pid: 23292, ti=c298a000 task=f343b280 task.ti=c298a000) [41819.088028] Stack: [41819.088028] 00000000 c3b27658 e2a80d00 c298beb0 f864051a c3b27600 c298bec0 f9027099 [41819.088028] c2fd6000 00000008 c298bef0 c1147f96 00000001 00000000 00000000 f4e54790 [41819.088028] ecf43a00 ecf43a00 c2fd6008 c2fd6000 ebbd7600 ffffffb9 c298bf08 c1144474 [41819.088028] Call Trace: [41819.088028] [] qmi_wwan_cdc_wdm_manage_power+0x1a/0x20 [qmi_wwan] [41819.088028] [] wdm_release+0x69/0x70 [cdc_wdm] [41819.088028] [] fput+0xe6/0x210 [41819.088028] [] filp_close+0x54/0x80 [41819.088028] [] put_files_struct+0x75/0xc0 [41819.088028] [] exit_files+0x46/0x60 [41819.088028] [] do_exit+0x141/0x780 [41819.088028] [] ? wake_up_state+0xf/0x20 [41819.088028] [] ? signal_wake_up+0x28/0x40 [41819.088028] [] ? zap_other_threads+0x6b/0x80 [41819.088028] [] do_group_exit+0x34/0xa0 [41819.088028] [] sys_exit_group+0x18/0x20 [41819.088028] [] sysenter_do_call+0x12/0x28 [41819.088028] Code: 04 83 e7 01 c1 e7 03 0f b6 42 18 83 e0 f7 09 f8 88 42 18 8b 43 04 e8 48 9a dd c8 89 f0 8b 5d f4 8b 75 f8 8b 7d fc 89 ec 5d c3 90 ff 88 80 00 00 00 0f 94 c0 84 c0 75 b7 31 f6 8b 5d f4 89 f0 [41819.088028] EIP: [] qmi_wwan_manage_power+0x68/0x90 [qmi_wwan] SS:ESP 0068:c298be98 [41819.088028] CR2: 0000000000000080 [41819.149492] ---[ end trace 0944479ff8257f55 ]--- Reported-by: Marius Bjørnstad Kotsbak Cc: # v3.4 Signed-off-by: Bjørn Mork Signed-off-by: David S. Miller --- drivers/net/usb/qmi_wwan.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c index 3767a1225860..b01960fcfbc9 100644 --- a/drivers/net/usb/qmi_wwan.c +++ b/drivers/net/usb/qmi_wwan.c @@ -197,6 +197,10 @@ err: static int qmi_wwan_cdc_wdm_manage_power(struct usb_interface *intf, int on) { struct usbnet *dev = usb_get_intfdata(intf); + + /* can be called while disconnecting */ + if (!dev) + return 0; return qmi_wwan_manage_power(dev, on); } -- cgit v1.2.3-59-g8ed1b From 7cecb523adedcaf8acba5e14d47559d8bc3f40d7 Mon Sep 17 00:00:00 2001 From: Vinson Lee Date: Wed, 27 Jun 2012 14:32:07 +0000 Subject: net: Downgrade CAP_SYS_MODULE deprecated message from error to warning. Make logging level consistent with other deprecation messages in net subsystem. Signed-off-by: Vinson Lee Cc: David Mackey Signed-off-by: David S. Miller --- net/core/dev.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/net/core/dev.c b/net/core/dev.c index 6df214041a5e..84f01ba81a34 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -1136,8 +1136,8 @@ void dev_load(struct net *net, const char *name) no_module = request_module("netdev-%s", name); if (no_module && capable(CAP_SYS_MODULE)) { if (!request_module("%s", name)) - pr_err("Loading kernel module for a network device with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%s instead.\n", - name); + pr_warn("Loading kernel module for a network device with CAP_SYS_MODULE (deprecated). Use CAP_NET_ADMIN and alias netdev-%s instead.\n", + name); } } EXPORT_SYMBOL(dev_load); -- cgit v1.2.3-59-g8ed1b From 9740e001932f59ee007d13ee3f39bb1b61086651 Mon Sep 17 00:00:00 2001 From: Claudiu Manoil Date: Thu, 28 Jun 2012 04:40:53 +0000 Subject: gianfar: Fix RXICr/TXICr programming for multi-queue mode The correct behavior is to program the interrupt coalescing regs (RXICr/TXICr) in accordance with the Rx/Tx Q's "rx/txcoalescing" flag. That is, if the coalescing flag is 0 for a given Rx/Tx queue then the corresponding coalescing register should be cleared. This behavior is correctly implemented for the single-queue mode (SQ_SG_MODE), but not for the multi-queue mode (MQ_MG_MODE). This fixes the later case. Signed-off-by: Claudiu Manoil Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/gianfar.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index 0741aded9eb0..f2db8fca46a1 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -1804,18 +1804,16 @@ void gfar_configure_coalescing(struct gfar_private *priv, if (priv->mode == MQ_MG_MODE) { baddr = ®s->txic0; for_each_set_bit(i, &tx_mask, priv->num_tx_queues) { - if (likely(priv->tx_queue[i]->txcoalescing)) { - gfar_write(baddr + i, 0); + gfar_write(baddr + i, 0); + if (likely(priv->tx_queue[i]->txcoalescing)) gfar_write(baddr + i, priv->tx_queue[i]->txic); - } } baddr = ®s->rxic0; for_each_set_bit(i, &rx_mask, priv->num_rx_queues) { - if (likely(priv->rx_queue[i]->rxcoalescing)) { - gfar_write(baddr + i, 0); + gfar_write(baddr + i, 0); + if (likely(priv->rx_queue[i]->rxcoalescing)) gfar_write(baddr + i, priv->rx_queue[i]->rxic); - } } } } -- cgit v1.2.3-59-g8ed1b From 61c91dd4a58b21a783e37208f4d02e3cb4b637c4 Mon Sep 17 00:00:00 2001 From: Ping Cheng Date: Thu, 28 Jun 2012 16:46:27 -0700 Subject: Input: wacom - fix retrieving touch_max bug rep_data is not an array anymore, so taking it's address when passing to wacom_get_report() is wrong. Signed-off-by: Ping Cheng Tested-by: Rafi Rubin Reviewed-by: Jason Gerecke Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_sys.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index b3a8bd3514b2..23a933da75cd 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -213,7 +213,7 @@ static void wacom_retrieve_report_data(struct usb_interface *intf, rep_data[0] = 12; result = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, - rep_data[0], &rep_data, 2, + rep_data[0], rep_data, 2, WAC_MSG_RETRIES); if (result >= 0 && rep_data[1] > 2) -- cgit v1.2.3-59-g8ed1b From 1cecc5cc0658e128bcad0b29edb96f286066571d Mon Sep 17 00:00:00 2001 From: Ping Cheng Date: Thu, 28 Jun 2012 16:47:30 -0700 Subject: Input: wacom - don't retrieve touch_max when it is predefined Some models, such as 0xE6, report more fingers than we process. Reported-by: Jonathan Nieder Signed-off-by: Ping Cheng Tested-by: Nils Kanning Tested-by: Rafi Rubin Reviewed-by: Jason Gerecke Signed-off-by: Dmitry Torokhov --- drivers/input/tablet/wacom_sys.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c index 23a933da75cd..b145841bdbe7 100644 --- a/drivers/input/tablet/wacom_sys.c +++ b/drivers/input/tablet/wacom_sys.c @@ -398,7 +398,9 @@ static int wacom_parse_hid(struct usb_interface *intf, break; case HID_USAGE_CONTACTMAX: - wacom_retrieve_report_data(intf, features); + /* leave touch_max as is if predefined */ + if (!features->touch_max) + wacom_retrieve_report_data(intf, features); i++; break; } -- cgit v1.2.3-59-g8ed1b From 76fbc247b9aebc30f6d2c8ec1f69edcb68eaa328 Mon Sep 17 00:00:00 2001 From: Daniel Mack Date: Thu, 28 Jun 2012 06:12:32 +0000 Subject: davinci_cpdma: include linux/module.h MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This fixes a number of warnings such as: CC drivers/net/ethernet/ti/davinci_cpdma.o drivers/net/ethernet/ti/davinci_cpdma.c:279:1: warning: data definition has no type or storage class drivers/net/ethernet/ti/davinci_cpdma.c:279:1: warning: type defaults to ‘int’ in declaration of ‘EXPORT_SYMBOL_GPL’ drivers/net/ethernet/ti/davinci_cpdma.c:279:1: warning: parameter names (without types) in function declaration Signed-off-by: Daniel Mack Cc: Vaibhav Hiremath Cc: David S. Miller Cc: Christian Riesch Signed-off-by: David S. Miller --- drivers/net/ethernet/ti/davinci_cpdma.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/ti/davinci_cpdma.c b/drivers/net/ethernet/ti/davinci_cpdma.c index d614c374ed9d..3b5c4571b55e 100644 --- a/drivers/net/ethernet/ti/davinci_cpdma.c +++ b/drivers/net/ethernet/ti/davinci_cpdma.c @@ -15,6 +15,7 @@ #include #include #include +#include #include #include #include -- cgit v1.2.3-59-g8ed1b From 7784655acc5a946aac49af423cc1099c5d593d73 Mon Sep 17 00:00:00 2001 From: Michael Ellerman Date: Thu, 21 Jun 2012 17:50:27 +0000 Subject: powerpc: Fix BPF_JIT code to link with multiple TOCs If the kernel is big enough (eg. allyesconfig), the linker may need to switch TOCs when calling from the BPF JIT code out to the external helpers (skb_copy_bits() & bpf_internal_load_pointer_neg_helper()). In order to do that we need to leave space after the bl for the linker to insert a reload of our TOC pointer. Signed-off-by: Michael Ellerman Acked-by: Matt Evans Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/net/bpf_jit_64.S | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/powerpc/net/bpf_jit_64.S b/arch/powerpc/net/bpf_jit_64.S index 55ba3855a97f..7d3a3b5619a2 100644 --- a/arch/powerpc/net/bpf_jit_64.S +++ b/arch/powerpc/net/bpf_jit_64.S @@ -105,6 +105,7 @@ sk_load_byte_msh_positive_offset: mr r4, r_addr; \ li r6, SIZE; \ bl skb_copy_bits; \ + nop; \ /* R3 = 0 on success */ \ addi r1, r1, BPF_PPC_SLOWPATH_FRAME; \ ld r0, 16(r1); \ @@ -156,6 +157,7 @@ bpf_slow_path_byte_msh: mr r4, r_addr; \ li r5, SIZE; \ bl bpf_internal_load_pointer_neg_helper; \ + nop; \ /* R3 != 0 on success */ \ addi r1, r1, BPF_PPC_SLOWPATH_FRAME; \ ld r0, 16(r1); \ -- cgit v1.2.3-59-g8ed1b From 82b2521d257b5c0efd51821cf5fa306e53bbb6ba Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Tue, 19 Jun 2012 20:01:45 +0000 Subject: powerpc: Fix uninitialised error in numa.c chroma_defconfig currently gives me this with gcc 4.6: arch/powerpc/mm/numa.c:638:13: error: 'dm' may be used uninitialized in this function [-Werror=uninitialized] It's a bogus warning/error since of_get_drconf_memory() only writes it anyway. Signed-off-by: Michael Neuling cc: [v3.3+] Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/mm/numa.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index b6edbb3b4a54..6e8f677f5646 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -635,7 +635,7 @@ static inline int __init read_usm_ranges(const u32 **usm) */ static void __init parse_drconf_memory(struct device_node *memory) { - const u32 *dm, *usm; + const u32 *uninitialized_var(dm), *usm; unsigned int n, rc, ranges, is_kexec_kdump = 0; unsigned long lmb_size, base, size, sz; int nid; -- cgit v1.2.3-59-g8ed1b From c58ce2b1e3c75c55e7ebf751afce9f5a30f60b42 Mon Sep 17 00:00:00 2001 From: Tiejun Chen Date: Wed, 6 Jun 2012 20:56:43 +0000 Subject: ppc64: fix missing to check all bits of _TIF_USER_WORK_MASK in preempt In entry_64.S version of ret_from_except_lite, you'll notice that in the !preempt case, after we've checked MSR_PR we test for any TIF flag in _TIF_USER_WORK_MASK to decide whether to go to do_work or not. However, in the preempt case, we do a convoluted trick to test SIGPENDING only if PR was set and always test NEED_RESCHED ... but we forget to test any other bit of _TIF_USER_WORK_MASK !!! So that means that with preempt, we completely fail to test for things like single step, syscall tracing, etc... This should be fixed as the following path: - Test PR. If not set, go to resume_kernel, else continue. - If go resume_kernel, to do that original do_work. - If else, then always test for _TIF_USER_WORK_MASK to decide to do that original user_work, else restore directly. Signed-off-by: Tiejun Chen Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/entry_64.S | 97 +++++++++++++++++------------------------- 1 file changed, 40 insertions(+), 57 deletions(-) diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S index ed1718feb9d9..5971c85df136 100644 --- a/arch/powerpc/kernel/entry_64.S +++ b/arch/powerpc/kernel/entry_64.S @@ -558,27 +558,54 @@ _GLOBAL(ret_from_except_lite) mtmsrd r10,1 /* Update machine state */ #endif /* CONFIG_PPC_BOOK3E */ -#ifdef CONFIG_PREEMPT clrrdi r9,r1,THREAD_SHIFT /* current_thread_info() */ - li r0,_TIF_NEED_RESCHED /* bits to check */ ld r3,_MSR(r1) ld r4,TI_FLAGS(r9) - /* Move MSR_PR bit in r3 to _TIF_SIGPENDING position in r0 */ - rlwimi r0,r3,32+TIF_SIGPENDING-MSR_PR_LG,_TIF_SIGPENDING - and. r0,r4,r0 /* check NEED_RESCHED and maybe SIGPENDING */ - bne do_work - -#else /* !CONFIG_PREEMPT */ - ld r3,_MSR(r1) /* Returning to user mode? */ andi. r3,r3,MSR_PR - beq restore /* if not, just restore regs and return */ + beq resume_kernel /* Check current_thread_info()->flags */ + andi. r0,r4,_TIF_USER_WORK_MASK + beq restore + + andi. r0,r4,_TIF_NEED_RESCHED + beq 1f + bl .restore_interrupts + bl .schedule + b .ret_from_except_lite + +1: bl .save_nvgprs + bl .restore_interrupts + addi r3,r1,STACK_FRAME_OVERHEAD + bl .do_notify_resume + b .ret_from_except + +resume_kernel: +#ifdef CONFIG_PREEMPT + /* Check if we need to preempt */ + andi. r0,r4,_TIF_NEED_RESCHED + beq+ restore + /* Check that preempt_count() == 0 and interrupts are enabled */ + lwz r8,TI_PREEMPT(r9) + cmpwi cr1,r8,0 + ld r0,SOFTE(r1) + cmpdi r0,0 + crandc eq,cr1*4+eq,eq + bne restore + + /* + * Here we are preempting the current task. We want to make + * sure we are soft-disabled first + */ + SOFT_DISABLE_INTS(r3,r4) +1: bl .preempt_schedule_irq + + /* Re-test flags and eventually loop */ clrrdi r9,r1,THREAD_SHIFT ld r4,TI_FLAGS(r9) - andi. r0,r4,_TIF_USER_WORK_MASK - bne do_work -#endif /* !CONFIG_PREEMPT */ + andi. r0,r4,_TIF_NEED_RESCHED + bne 1b +#endif /* CONFIG_PREEMPT */ .globl fast_exc_return_irq fast_exc_return_irq: @@ -759,50 +786,6 @@ restore_check_irq_replay: #endif /* CONFIG_PPC_BOOK3E */ 1: b .ret_from_except /* What else to do here ? */ - - -3: -do_work: -#ifdef CONFIG_PREEMPT - andi. r0,r3,MSR_PR /* Returning to user mode? */ - bne user_work - /* Check that preempt_count() == 0 and interrupts are enabled */ - lwz r8,TI_PREEMPT(r9) - cmpwi cr1,r8,0 - ld r0,SOFTE(r1) - cmpdi r0,0 - crandc eq,cr1*4+eq,eq - bne restore - - /* - * Here we are preempting the current task. We want to make - * sure we are soft-disabled first - */ - SOFT_DISABLE_INTS(r3,r4) -1: bl .preempt_schedule_irq - - /* Re-test flags and eventually loop */ - clrrdi r9,r1,THREAD_SHIFT - ld r4,TI_FLAGS(r9) - andi. r0,r4,_TIF_NEED_RESCHED - bne 1b - b restore - -user_work: -#endif /* CONFIG_PREEMPT */ - - andi. r0,r4,_TIF_NEED_RESCHED - beq 1f - bl .restore_interrupts - bl .schedule - b .ret_from_except_lite - -1: bl .save_nvgprs - bl .restore_interrupts - addi r3,r1,STACK_FRAME_OVERHEAD - bl .do_notify_resume - b .ret_from_except - unrecov_restore: addi r3,r1,STACK_FRAME_OVERHEAD bl .unrecoverable_exception -- cgit v1.2.3-59-g8ed1b From 2cb387ae758d97ee7396a82528c824b8dc510b8a Mon Sep 17 00:00:00 2001 From: Li Zhong Date: Thu, 7 Jun 2012 17:44:23 +0000 Subject: powerpc: Fix Section mismatch warnings in prom_init.c This patches tries to fix a couple of Section mismatch warnings like following one: WARNING: arch/powerpc/kernel/built-in.o(.text+0x2923c): Section mismatch in reference from the function .prom_query_opal() to the function .init.text:.call_prom() The function .prom_query_opal() references the function __init .call_prom(). This is often because .prom_query_opal lacks a __init annotation or the annotation of .call_prom is wrong. Signed-off-by: Li Zhong Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/prom_init.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c index 1b488e5305c5..0794a3017b1b 100644 --- a/arch/powerpc/kernel/prom_init.c +++ b/arch/powerpc/kernel/prom_init.c @@ -1312,7 +1312,7 @@ static struct opal_secondary_data { extern char opal_secondary_entry; -static void prom_query_opal(void) +static void __init prom_query_opal(void) { long rc; @@ -1436,7 +1436,7 @@ static void __init prom_opal_hold_cpus(void) prom_debug("prom_opal_hold_cpus: end...\n"); } -static void prom_opal_takeover(void) +static void __init prom_opal_takeover(void) { struct opal_secondary_data *data = &RELOC(opal_secondary_data); struct opal_takeover_args *args = &data->args; -- cgit v1.2.3-59-g8ed1b From 2d773aa4810d4a612d1c879faacc38594cc3f841 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Mon, 4 Jun 2012 16:27:54 +0000 Subject: powerpc/ftrace: Do not trace restore_interrupts() As I was adding code that affects all archs, I started testing function tracer against PPC64 and found that it currently locks up with 3.4 kernel. I figured it was due to tracing a function that shouldn't be, so I went through the following process to bisect to find the culprit: cat /debug/tracing/available_filter_functions > t num=`wc -l t` sed -ne "1,${num}p" t > t1 let num=num+1 sed -ne "${num},$p" t > t2 cat t1 > /debug/tracing/set_ftrace_filter echo function /debug/tracing/current_tracer It finally came down to this function: restore_interrupts() I'm not sure why this locks up the system. It just seems to prevent scheduling from occurring. Interrupts seem to still work, as I can ping the box. But all user processes freeze. When restore_interrupts() is not traced, function tracing works fine. Cc: stable@kernel.org Signed-off-by: Steven Rostedt Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kernel/irq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c index 7835a5e1ea5f..1b415027ec0e 100644 --- a/arch/powerpc/kernel/irq.c +++ b/arch/powerpc/kernel/irq.c @@ -277,7 +277,7 @@ EXPORT_SYMBOL(arch_local_irq_restore); * NOTE: This is called with interrupts hard disabled but not marked * as such in paca->irq_happened, so we need to resync this. */ -void restore_interrupts(void) +void notrace restore_interrupts(void) { if (irqs_disabled()) { local_paca->irq_happened |= PACA_IRQ_HARD_DIS; -- cgit v1.2.3-59-g8ed1b From 0b17ba7258db83cd02da560884e053b85de371f2 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Wed, 27 Jun 2012 13:13:52 +0000 Subject: powerpc: check_and_cede_processor() never cedes Commit f948501b36c6 ("Make hard_irq_disable() actually hard-disable interrupts") caused check_and_cede_processor to stop working. ->irq_happened will never be zero right after a hard_irq_disable so the compiler removes the call to cede_processor completely. The bug was introduced back in the lazy interrupt handling rework of 3.4 but was hidden until recently because hard_irq_disable did nothing. This issue will eventually appear in 3.4 stable since the hard_irq_disable fix is marked stable, so mark this one for stable too. Signed-off-by: Anton Blanchard Cc: stable@vger.kernel.org Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/include/asm/hw_irq.h | 5 +++++ arch/powerpc/platforms/pseries/processor_idle.c | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h index 32b394f3b854..6eb75b80488c 100644 --- a/arch/powerpc/include/asm/hw_irq.h +++ b/arch/powerpc/include/asm/hw_irq.h @@ -103,6 +103,11 @@ static inline void hard_irq_disable(void) /* include/linux/interrupt.h needs hard_irq_disable to be a macro */ #define hard_irq_disable hard_irq_disable +static inline bool lazy_irq_pending(void) +{ + return !!(get_paca()->irq_happened & ~PACA_IRQ_HARD_DIS); +} + /* * This is called by asynchronous interrupts to conditionally * re-enable hard interrupts when soft-disabled after having diff --git a/arch/powerpc/platforms/pseries/processor_idle.c b/arch/powerpc/platforms/pseries/processor_idle.c index 41a34bc4a9a2..e61483e8e960 100644 --- a/arch/powerpc/platforms/pseries/processor_idle.c +++ b/arch/powerpc/platforms/pseries/processor_idle.c @@ -106,7 +106,7 @@ static void check_and_cede_processor(void) * we first hard disable then check. */ hard_irq_disable(); - if (get_paca()->irq_happened == 0) + if (!lazy_irq_pending()) cede_processor(); } -- cgit v1.2.3-59-g8ed1b From bc6dc752f35488160ffac07ae91bed1bddaea32a Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Tue, 26 Jun 2012 21:26:37 +0000 Subject: powerpc/pseries: Fix software invalidate TCE The following added support for powernv but broke pseries/BML: 1f1616e powerpc/powernv: Add TCE SW invalidation support TCE_PCI_SW_INVAL was split into FREE and CREATE flags but the tests in the pseries code were not updated to reflect this. Signed-off-by: Michael Neuling cc: stable@kernel.org [v3.3+] Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/platforms/pseries/iommu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index 0915b1ad66ce..2d311c0caf8e 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -106,7 +106,7 @@ static int tce_build_pSeries(struct iommu_table *tbl, long index, tcep++; } - if (tbl->it_type == TCE_PCI_SWINV_CREATE) + if (tbl->it_type & TCE_PCI_SWINV_CREATE) tce_invalidate_pSeries_sw(tbl, tces, tcep - 1); return 0; } @@ -121,7 +121,7 @@ static void tce_free_pSeries(struct iommu_table *tbl, long index, long npages) while (npages--) *(tcep++) = 0; - if (tbl->it_type == TCE_PCI_SWINV_FREE) + if (tbl->it_type & TCE_PCI_SWINV_FREE) tce_invalidate_pSeries_sw(tbl, tces, tcep - 1); } -- cgit v1.2.3-59-g8ed1b From b0dfa4541e48ac4cc5f017285432c89923ad0f58 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Wed, 20 Jun 2012 14:16:57 +0100 Subject: ASoC: wm2200: Add missing BCLK rate Without this very high BCLKs will be configured incorrectly. Reported-by: Axel Lin Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- sound/soc/codecs/wm2200.c | 1 + 1 file changed, 1 insertion(+) diff --git a/sound/soc/codecs/wm2200.c b/sound/soc/codecs/wm2200.c index acbdc5fde923..32682c1b7cde 100644 --- a/sound/soc/codecs/wm2200.c +++ b/sound/soc/codecs/wm2200.c @@ -1491,6 +1491,7 @@ static int wm2200_bclk_rates_dat[WM2200_NUM_BCLK_RATES] = { static int wm2200_bclk_rates_cd[WM2200_NUM_BCLK_RATES] = { 5644800, + 3763200, 2882400, 1881600, 1411200, -- cgit v1.2.3-59-g8ed1b From c9fe573a6584034670c1a55ee8162d623519cbbf Mon Sep 17 00:00:00 2001 From: "Hebbar, Gururaja" Date: Tue, 26 Jun 2012 19:25:11 +0530 Subject: ASoC: tlv320aic3x: Fix codec pll configure bug In sound/soc/codecs/tlv320aic3x.c data = snd_soc_read(codec, AIC3X_PLL_PROGA_REG); snd_soc_write(codec, AIC3X_PLL_PROGA_REG, data | (pll_p << PLLP_SHIFT)); In the above code, pll-p value is OR'ed with previous value without clearing it. Bug is not seen if pll-p value doesn't change across Sampling frequency. However on some platforms (like AM335x EVM-SK), pll-p may have different values across different sampling frequencies. In such case, above code configures the pll with a wrong value. Because of this bug, when a audio stream is played with pll value different from previous stream, audio is heard as differently(like its stretched). Signed-off-by: Hebbar, Gururaja Signed-off-by: Mark Brown Cc: stable@vger.kernel.org --- sound/soc/codecs/tlv320aic3x.c | 4 +--- sound/soc/codecs/tlv320aic3x.h | 1 + 2 files changed, 2 insertions(+), 3 deletions(-) diff --git a/sound/soc/codecs/tlv320aic3x.c b/sound/soc/codecs/tlv320aic3x.c index 64d2a4fa34b2..e9b62b5ea637 100644 --- a/sound/soc/codecs/tlv320aic3x.c +++ b/sound/soc/codecs/tlv320aic3x.c @@ -935,9 +935,7 @@ static int aic3x_hw_params(struct snd_pcm_substream *substream, } found: - data = snd_soc_read(codec, AIC3X_PLL_PROGA_REG); - snd_soc_write(codec, AIC3X_PLL_PROGA_REG, - data | (pll_p << PLLP_SHIFT)); + snd_soc_update_bits(codec, AIC3X_PLL_PROGA_REG, PLLP_MASK, pll_p); snd_soc_write(codec, AIC3X_OVRF_STATUS_AND_PLLR_REG, pll_r << PLLR_SHIFT); snd_soc_write(codec, AIC3X_PLL_PROGB_REG, pll_j << PLLJ_SHIFT); diff --git a/sound/soc/codecs/tlv320aic3x.h b/sound/soc/codecs/tlv320aic3x.h index 6f097fb60683..08c7f6685ff0 100644 --- a/sound/soc/codecs/tlv320aic3x.h +++ b/sound/soc/codecs/tlv320aic3x.h @@ -166,6 +166,7 @@ /* PLL registers bitfields */ #define PLLP_SHIFT 0 +#define PLLP_MASK 7 #define PLLQ_SHIFT 3 #define PLLR_SHIFT 0 #define PLLJ_SHIFT 2 -- cgit v1.2.3-59-g8ed1b From 8663ff75cdca0a66f808e124c5592735793926af Mon Sep 17 00:00:00 2001 From: Kailang Yang Date: Fri, 29 Jun 2012 09:35:52 +0200 Subject: ALSA: hda - Fix no sound from ALC662 after Windows reboot Windows use hidden register to control EAPD. Linux use verb to control EAPD. If windows reboot to Linux, it must change the EAPD control to verb control. Signed-off-by: Kailang Yang Signed-off-by: Takashi Iwai --- sound/pci/hda/patch_realtek.c | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c index 5ccf10a4d593..aa4c25e0f327 100644 --- a/sound/pci/hda/patch_realtek.c +++ b/sound/pci/hda/patch_realtek.c @@ -6688,6 +6688,31 @@ static const struct alc_model_fixup alc662_fixup_models[] = { {} }; +static void alc662_fill_coef(struct hda_codec *codec) +{ + int val, coef; + + coef = alc_get_coef0(codec); + + switch (codec->vendor_id) { + case 0x10ec0662: + if ((coef & 0x00f0) == 0x0030) { + val = alc_read_coef_idx(codec, 0x4); /* EAPD Ctrl */ + alc_write_coef_idx(codec, 0x4, val & ~(1<<10)); + } + break; + case 0x10ec0272: + case 0x10ec0273: + case 0x10ec0663: + case 0x10ec0665: + case 0x10ec0670: + case 0x10ec0671: + case 0x10ec0672: + val = alc_read_coef_idx(codec, 0xd); /* EAPD Ctrl */ + alc_write_coef_idx(codec, 0xd, val | (1<<14)); + break; + } +} /* */ @@ -6707,6 +6732,9 @@ static int patch_alc662(struct hda_codec *codec) alc_fix_pll_init(codec, 0x20, 0x04, 15); + spec->init_hook = alc662_fill_coef; + alc662_fill_coef(codec); + alc_pick_fixup(codec, alc662_fixup_models, alc662_fixup_tbl, alc662_fixups); alc_apply_fixup(codec, ALC_FIXUP_ACT_PRE_PROBE); -- cgit v1.2.3-59-g8ed1b From d31f4d448f7671dc3e6a7a1c92a4c085a36058bb Mon Sep 17 00:00:00 2001 From: Tomasz Bursztyka Date: Thu, 28 Jun 2012 02:57:48 +0000 Subject: netfilter: ipset: fix crash if IPSET_CMD_NONE command is sent This patch fixes a crash if that ipset command is sent over nfnetlink. Signed-off-by: Tomasz Bursztyka Acked-by: Jozsef Kadlecsik Signed-off-by: Pablo Neira Ayuso --- net/netfilter/ipset/ip_set_core.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c index 819c342f5b30..9730882697aa 100644 --- a/net/netfilter/ipset/ip_set_core.c +++ b/net/netfilter/ipset/ip_set_core.c @@ -639,6 +639,14 @@ find_free_id(const char *name, ip_set_id_t *index, struct ip_set **set) return 0; } +static int +ip_set_none(struct sock *ctnl, struct sk_buff *skb, + const struct nlmsghdr *nlh, + const struct nlattr * const attr[]) +{ + return -EOPNOTSUPP; +} + static int ip_set_create(struct sock *ctnl, struct sk_buff *skb, const struct nlmsghdr *nlh, @@ -1539,6 +1547,10 @@ nlmsg_failure: } static const struct nfnl_callback ip_set_netlink_subsys_cb[IPSET_MSG_MAX] = { + [IPSET_CMD_NONE] = { + .call = ip_set_none, + .attr_count = IPSET_ATTR_CMD_MAX, + }, [IPSET_CMD_CREATE] = { .call = ip_set_create, .attr_count = IPSET_ATTR_CMD_MAX, -- cgit v1.2.3-59-g8ed1b From 4009e18851ea555959c6017d848983b3d60bf667 Mon Sep 17 00:00:00 2001 From: Tomasz Bursztyka Date: Thu, 28 Jun 2012 02:57:49 +0000 Subject: netfilter: nfnetlink: fix missing rcu_read_unlock in nfnetlink_rcv_msg Bug added in commit 6b75e3e8d664a9a (netfilter: nfnetlink: add RCU in nfnetlink_rcv_msg()) Signed-off-by: Tomasz Bursztyka Acked-by: Eric Dumazet Signed-off-by: Pablo Neira Ayuso --- net/netfilter/nfnetlink.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/net/netfilter/nfnetlink.c b/net/netfilter/nfnetlink.c index 3e797d1fcb94..791d56bbd74a 100644 --- a/net/netfilter/nfnetlink.c +++ b/net/netfilter/nfnetlink.c @@ -169,8 +169,10 @@ replay: err = nla_parse(cda, ss->cb[cb_id].attr_count, attr, attrlen, ss->cb[cb_id].policy); - if (err < 0) + if (err < 0) { + rcu_read_unlock(); return err; + } if (nc->call_rcu) { err = nc->call_rcu(net->nfnl, skb, nlh, -- cgit v1.2.3-59-g8ed1b From c21b328ea8c7c71cd2daf50557db440bbaa7ef55 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Thu, 28 Jun 2012 17:53:07 -0400 Subject: drm/radeon: fix VM page table setup on SI Cayman and trinity allow for variable sized VM page tables, but SI requires that all page tables be the same size. The current code assumes variablely sized VM page tables so SI may end up with part of each page table overlapping with other memory which could end up being interpreted by the VM hw as garbage. Change the code to better accomodate SI. Allocate enough space for at least 2 full page tables and always set last_pfn to max_pfn on SI so each VM is backed by a full page table. This limits us to only 2 VMs active at any given time on SI. This will be rectified and the code can be reunified once we move to two level page tables. Signed-off-by: Alex Deucher Reviewed-by: Jerome Glisse Cc: stable@vger.kernel.org Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_gart.c | 13 +++++++++++-- drivers/gpu/drm/radeon/si.c | 4 ++-- 2 files changed, 13 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c index 59d44937dd9f..84b648a7ddd8 100644 --- a/drivers/gpu/drm/radeon/radeon_gart.c +++ b/drivers/gpu/drm/radeon/radeon_gart.c @@ -289,8 +289,9 @@ int radeon_vm_manager_init(struct radeon_device *rdev) rdev->vm_manager.enabled = false; /* mark first vm as always in use, it's the system one */ + /* allocate enough for 2 full VM pts */ r = radeon_sa_bo_manager_init(rdev, &rdev->vm_manager.sa_manager, - rdev->vm_manager.max_pfn * 8, + rdev->vm_manager.max_pfn * 8 * 2, RADEON_GEM_DOMAIN_VRAM); if (r) { dev_err(rdev->dev, "failed to allocate vm bo (%dKB)\n", @@ -633,7 +634,15 @@ int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm) mutex_init(&vm->mutex); INIT_LIST_HEAD(&vm->list); INIT_LIST_HEAD(&vm->va); - vm->last_pfn = 0; + /* SI requires equal sized PTs for all VMs, so always set + * last_pfn to max_pfn. cayman allows variable sized + * pts so we can grow then as needed. Once we switch + * to two level pts we can unify this again. + */ + if (rdev->family >= CHIP_TAHITI) + vm->last_pfn = rdev->vm_manager.max_pfn; + else + vm->last_pfn = 0; /* map the ib pool buffer at 0 in virtual address space, set * read only */ diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c index c7b61f16ecfd..0b0279291a73 100644 --- a/drivers/gpu/drm/radeon/si.c +++ b/drivers/gpu/drm/radeon/si.c @@ -2365,12 +2365,12 @@ int si_pcie_gart_enable(struct radeon_device *rdev) WREG32(0x15DC, 0); /* empty context1-15 */ - /* FIXME start with 1G, once using 2 level pt switch to full + /* FIXME start with 4G, once using 2 level pt switch to full * vm size space */ /* set vm size, must be a multiple of 4 */ WREG32(VM_CONTEXT1_PAGE_TABLE_START_ADDR, 0); - WREG32(VM_CONTEXT1_PAGE_TABLE_END_ADDR, (1 << 30) / RADEON_GPU_PAGE_SIZE); + WREG32(VM_CONTEXT1_PAGE_TABLE_END_ADDR, rdev->vm_manager.max_pfn); for (i = 1; i < 16; i++) { if (i < 8) WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (i << 2), -- cgit v1.2.3-59-g8ed1b From 084681d14e429cb6192262ac7437f00e2c02f26a Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Thu, 28 Jun 2012 09:38:53 +0200 Subject: printk: flush continuation lines immediately to console Continuation lines are buffered internally, intended to merge the chunked printk()s into a single record, and to isolate potentially racy continuation users from usual terminated line users. This though, has the effect that partial lines are not printed to the console in the moment they are emitted. In case the kernel crashes in the meantime, the potentially interesting printed information would never reach the consoles. Here we share the continuation buffer with the console copy logic, and partial lines are always immediately flushed to the available consoles. They are still buffered internally to improve the readability and integrity of the messages and minimize the amount of needed record headers to store. Signed-off-by: Kay Sievers Tested-by: Steven Rostedt Acked-by: Steven Rostedt Signed-off-by: Greg Kroah-Hartman --- kernel/printk.c | 244 ++++++++++++++++++++++++++++++++++++++++---------------- 1 file changed, 176 insertions(+), 68 deletions(-) diff --git a/kernel/printk.c b/kernel/printk.c index cdfba44fedf0..fbf4d0b22a1d 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -193,12 +193,19 @@ static int console_may_schedule; * separated by ',', and find the message after the ';' character. */ +enum log_flags { + LOG_DEFAULT = 0, + LOG_NOCONS = 1, /* already flushed, do not print to console */ +}; + struct log { u64 ts_nsec; /* timestamp in nanoseconds */ u16 len; /* length of entire record */ u16 text_len; /* length of text buffer */ u16 dict_len; /* length of dictionary buffer */ - u16 level; /* syslog level + facility */ + u8 facility; /* syslog facility */ + u8 flags:5; /* internal record flags */ + u8 level:3; /* syslog level */ }; /* @@ -286,6 +293,7 @@ static u32 log_next(u32 idx) /* insert record into the buffer, discard old ones, update heads */ static void log_store(int facility, int level, + enum log_flags flags, u64 ts_nsec, const char *dict, u16 dict_len, const char *text, u16 text_len) { @@ -329,8 +337,13 @@ static void log_store(int facility, int level, msg->text_len = text_len; memcpy(log_dict(msg), dict, dict_len); msg->dict_len = dict_len; - msg->level = (facility << 3) | (level & 7); - msg->ts_nsec = local_clock(); + msg->facility = facility; + msg->level = level & 7; + msg->flags = flags & 0x1f; + if (ts_nsec > 0) + msg->ts_nsec = ts_nsec; + else + msg->ts_nsec = local_clock(); memset(log_dict(msg) + dict_len, 0, pad_len); msg->len = sizeof(struct log) + text_len + dict_len + pad_len; @@ -446,7 +459,7 @@ static ssize_t devkmsg_read(struct file *file, char __user *buf, ts_usec = msg->ts_nsec; do_div(ts_usec, 1000); len = sprintf(user->buf, "%u,%llu,%llu;", - msg->level, user->seq, ts_usec); + (msg->facility << 3) | msg->level, user->seq, ts_usec); /* escape non-printable characters */ for (i = 0; i < msg->text_len; i++) { @@ -787,6 +800,21 @@ static bool printk_time; #endif module_param_named(time, printk_time, bool, S_IRUGO | S_IWUSR); +static size_t print_time(u64 ts, char *buf) +{ + unsigned long rem_nsec; + + if (!printk_time) + return 0; + + if (!buf) + return 15; + + rem_nsec = do_div(ts, 1000000000); + return sprintf(buf, "[%5lu.%06lu] ", + (unsigned long)ts, rem_nsec / 1000); +} + static size_t print_prefix(const struct log *msg, bool syslog, char *buf) { size_t len = 0; @@ -803,18 +831,7 @@ static size_t print_prefix(const struct log *msg, bool syslog, char *buf) } } - if (printk_time) { - if (buf) { - unsigned long long ts = msg->ts_nsec; - unsigned long rem_nsec = do_div(ts, 1000000000); - - len += sprintf(buf + len, "[%5lu.%06lu] ", - (unsigned long) ts, rem_nsec / 1000); - } else { - len += 15; - } - } - + len += print_time(msg->ts_nsec, buf ? buf + len : NULL); return len; } @@ -1294,15 +1311,92 @@ static inline void printk_delay(void) } } +/* + * Continuation lines are buffered, and not committed to the record buffer + * until the line is complete, or a race forces it. The line fragments + * though, are printed immediately to the consoles to ensure everything has + * reached the console in case of a kernel crash. + */ +static struct cont { + char buf[LOG_LINE_MAX]; + size_t len; /* length == 0 means unused buffer */ + size_t cons; /* bytes written to console */ + struct task_struct *owner; /* task of first print*/ + u64 ts_nsec; /* time of first print */ + u8 level; /* log level of first message */ + u8 facility; /* log level of first message */ + bool flushed:1; /* buffer sealed and committed */ +} cont; + +static void cont_flush(void) +{ + if (cont.flushed) + return; + if (cont.len == 0) + return; + + log_store(cont.facility, cont.level, LOG_NOCONS, cont.ts_nsec, + NULL, 0, cont.buf, cont.len); + + cont.flushed = true; +} + +static bool cont_add(int facility, int level, const char *text, size_t len) +{ + if (cont.len && cont.flushed) + return false; + + if (cont.len + len > sizeof(cont.buf)) { + cont_flush(); + return false; + } + + if (!cont.len) { + cont.facility = facility; + cont.level = level; + cont.owner = current; + cont.ts_nsec = local_clock(); + cont.cons = 0; + cont.flushed = false; + } + + memcpy(cont.buf + cont.len, text, len); + cont.len += len; + return true; +} + +static size_t cont_print_text(char *text, size_t size) +{ + size_t textlen = 0; + size_t len; + + if (cont.cons == 0) { + textlen += print_time(cont.ts_nsec, text); + size -= textlen; + } + + len = cont.len - cont.cons; + if (len > 0) { + if (len+1 > size) + len = size-1; + memcpy(text + textlen, cont.buf + cont.cons, len); + textlen += len; + cont.cons = cont.len; + } + + if (cont.flushed) { + text[textlen++] = '\n'; + /* got everything, release buffer */ + cont.len = 0; + } + return textlen; +} + asmlinkage int vprintk_emit(int facility, int level, const char *dict, size_t dictlen, const char *fmt, va_list args) { static int recursion_bug; - static char cont_buf[LOG_LINE_MAX]; - static size_t cont_len; - static int cont_level; - static struct task_struct *cont_task; static char textbuf[LOG_LINE_MAX]; char *text = textbuf; size_t text_len; @@ -1348,7 +1442,8 @@ asmlinkage int vprintk_emit(int facility, int level, recursion_bug = 0; printed_len += strlen(recursion_msg); /* emit KERN_CRIT message */ - log_store(0, 2, NULL, 0, recursion_msg, printed_len); + log_store(0, 2, LOG_DEFAULT, 0, + NULL, 0, recursion_msg, printed_len); } /* @@ -1386,55 +1481,38 @@ asmlinkage int vprintk_emit(int facility, int level, } if (!newline) { - if (cont_len && (prefix || cont_task != current)) { - /* - * Flush earlier buffer, which is either from a - * different thread, or when we got a new prefix. - */ - log_store(facility, cont_level, NULL, 0, cont_buf, cont_len); - cont_len = 0; - } - - if (!cont_len) { - cont_level = level; - cont_task = current; - } + /* + * Flush the conflicting buffer. An earlier newline was missing, + * or another task also prints continuation lines. + */ + if (cont.len && (prefix || cont.owner != current)) + cont_flush(); - /* buffer or append to earlier buffer from the same thread */ - if (cont_len + text_len > sizeof(cont_buf)) - text_len = sizeof(cont_buf) - cont_len; - memcpy(cont_buf + cont_len, text, text_len); - cont_len += text_len; + /* buffer line if possible, otherwise store it right away */ + if (!cont_add(facility, level, text, text_len)) + log_store(facility, level, LOG_DEFAULT, 0, + dict, dictlen, text, text_len); } else { - if (cont_len && cont_task == current) { - if (prefix) { - /* - * New prefix from the same thread; flush. We - * either got no earlier newline, or we race - * with an interrupt. - */ - log_store(facility, cont_level, - NULL, 0, cont_buf, cont_len); - cont_len = 0; - } + bool stored = false; - /* append to the earlier buffer and flush */ - if (cont_len + text_len > sizeof(cont_buf)) - text_len = sizeof(cont_buf) - cont_len; - memcpy(cont_buf + cont_len, text, text_len); - cont_len += text_len; - log_store(facility, cont_level, - NULL, 0, cont_buf, cont_len); - cont_len = 0; - cont_task = NULL; - printed_len = cont_len; - } else { - /* ordinary single and terminated line */ - log_store(facility, level, - dict, dictlen, text, text_len); - printed_len = text_len; + /* + * Flush the conflicting buffer. An earlier newline was missing, + * or we race with a continuation line from an interrupt. + */ + if (cont.len && prefix && cont.owner == current) + cont_flush(); + + /* Merge with our buffer if possible; flush it in any case */ + if (cont.len && cont.owner == current) { + stored = cont_add(facility, level, text, text_len); + cont_flush(); } + + if (!stored) + log_store(facility, level, LOG_DEFAULT, 0, + dict, dictlen, text, text_len); } + printed_len += text_len; /* * Try to acquire and then immediately release the console semaphore. @@ -1521,11 +1599,18 @@ EXPORT_SYMBOL(printk); #else #define LOG_LINE_MAX 0 +static struct cont { + size_t len; + size_t cons; + u8 level; + bool flushed:1; +} cont; static struct log *log_from_idx(u32 idx) { return NULL; } static u32 log_next(u32 idx) { return 0; } static void call_console_drivers(int level, const char *text, size_t len) {} static size_t msg_print_text(const struct log *msg, bool syslog, char *buf, size_t size) { return 0; } +static size_t cont_print_text(char *text, size_t size) { return 0; } #endif /* CONFIG_PRINTK */ @@ -1817,6 +1902,7 @@ static u32 console_idx; */ void console_unlock(void) { + static char text[LOG_LINE_MAX]; static u64 seen_seq; unsigned long flags; bool wake_klogd = false; @@ -1829,10 +1915,23 @@ void console_unlock(void) console_may_schedule = 0; + /* flush buffered message fragment immediately to console */ + raw_spin_lock_irqsave(&logbuf_lock, flags); + if (cont.len && (cont.cons < cont.len || cont.flushed)) { + size_t len; + + len = cont_print_text(text, sizeof(text)); + raw_spin_unlock(&logbuf_lock); + stop_critical_timings(); + call_console_drivers(cont.level, text, len); + start_critical_timings(); + local_irq_restore(flags); + } else + raw_spin_unlock_irqrestore(&logbuf_lock, flags); + again: for (;;) { struct log *msg; - static char text[LOG_LINE_MAX]; size_t len; int level; @@ -1847,13 +1946,22 @@ again: console_seq = log_first_seq; console_idx = log_first_idx; } - +skip: if (console_seq == log_next_seq) break; msg = log_from_idx(console_idx); - level = msg->level & 7; + if (msg->flags & LOG_NOCONS) { + /* + * Skip record we have buffered and already printed + * directly to the console when we received it. + */ + console_idx = log_next(console_idx); + console_seq++; + goto skip; + } + level = msg->level; len = msg_print_text(msg, false, text, sizeof(text)); console_idx = log_next(console_idx); -- cgit v1.2.3-59-g8ed1b From 44b99462d9d776522e174d6c531ce5ccef309e26 Mon Sep 17 00:00:00 2001 From: Vaibhav Nagarnaik Date: Fri, 22 Jun 2012 11:50:05 -0700 Subject: ring-buffer: Fix crash due to uninitialized new_pages list head The new_pages list head in the cpu_buffer is not initialized. When adding pages to the ring buffer, if the memory allocation fails in ring_buffer_resize, the clean up handler tries to free up the allocated pages from all the cpu buffers. The panic is caused by referencing the uninitialized new_pages list head. Initializing the new_pages list head in rb_allocate_cpu_buffer fixes this. Link: http://lkml.kernel.org/r/1340391005-10880-1-git-send-email-vnagarnaik@google.com Cc: Justin Teravest Cc: David Sharp Signed-off-by: Vaibhav Nagarnaik Signed-off-by: Steven Rostedt --- kernel/trace/ring_buffer.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index 1d0f6a8a0e5e..ba39cbabdc9f 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1075,6 +1075,7 @@ rb_allocate_cpu_buffer(struct ring_buffer *buffer, int nr_pages, int cpu) rb_init_page(bpage->page); INIT_LIST_HEAD(&cpu_buffer->reader_page->list); + INIT_LIST_HEAD(&cpu_buffer->new_pages); ret = rb_allocate_pages(cpu_buffer, nr_pages); if (ret < 0) -- cgit v1.2.3-59-g8ed1b From 48fdc72f23ad9a9956e524a47843135d0bbc3317 Mon Sep 17 00:00:00 2001 From: Vaibhav Nagarnaik Date: Fri, 29 Jun 2012 12:31:41 -0700 Subject: ring-buffer: Fix accounting of entries when removing pages When removing pages from the ring buffer, its state is not reset. This means that the counters need to be correctly updated to account for the pages removed. Update the overrun counter to reflect the removed events from the pages. Link: http://lkml.kernel.org/r/1340998301-1715-1-git-send-email-vnagarnaik@google.com Cc: Justin Teravest Cc: David Sharp Signed-off-by: Vaibhav Nagarnaik Signed-off-by: Steven Rostedt --- kernel/trace/ring_buffer.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c index ba39cbabdc9f..f765465bffe4 100644 --- a/kernel/trace/ring_buffer.c +++ b/kernel/trace/ring_buffer.c @@ -1347,10 +1347,9 @@ rb_remove_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned int nr_pages) * If something was added to this page, it was full * since it is not the tail page. So we deduct the * bytes consumed in ring buffer from here. - * No need to update overruns, since this page is - * deleted from ring buffer and its entries are - * already accounted for. + * Increment overrun to account for the lost events. */ + local_add(page_entries, &cpu_buffer->overrun); local_sub(BUF_PAGE_SIZE, &cpu_buffer->entries_bytes); } -- cgit v1.2.3-59-g8ed1b From d36208227d03c44c0a74cd702cc94528162e1703 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Fri, 29 Jun 2012 11:40:11 -0400 Subject: printk: Optimize if statement logic where newline exists In reviewing Kay's fix up patch: "printk: Have printk() never buffer its data", I found two if statements that could be combined and optimized. Put together the two 'cont.len && cont.owner == current' if statements into a single one, and check if we need to call cont_add(). This also removes the unneeded double cont_flush() calls. Link: http://lkml.kernel.org/r/1340869133.876.10.camel@mop Signed-off-by: Steven Rostedt Cc: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- kernel/printk.c | 13 ++++++------- 1 file changed, 6 insertions(+), 7 deletions(-) diff --git a/kernel/printk.c b/kernel/printk.c index fbf4d0b22a1d..5ae6b09e3805 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -1496,15 +1496,14 @@ asmlinkage int vprintk_emit(int facility, int level, bool stored = false; /* - * Flush the conflicting buffer. An earlier newline was missing, - * or we race with a continuation line from an interrupt. + * If an earlier newline was missing and it was the same task, + * either merge it with the current buffer and flush, or if + * there was a race with interrupts (prefix == true) then just + * flush it out and store this line separately. */ - if (cont.len && prefix && cont.owner == current) - cont_flush(); - - /* Merge with our buffer if possible; flush it in any case */ if (cont.len && cont.owner == current) { - stored = cont_add(facility, level, text, text_len); + if (!prefix) + stored = cont_add(facility, level, text, text_len); cont_flush(); } -- cgit v1.2.3-59-g8ed1b From b03738430c7537d5f87948e0b35d8aaf2688c6b4 Mon Sep 17 00:00:00 2001 From: Zhang Rui Date: Wed, 20 Jun 2012 09:48:43 +0800 Subject: ACPI video: Still use ACPI backlight control if _DOS doesn't exist This fixes a regression in 3.4-rc1 caused by commit ea9f8856bd6d4ed45885b06a338f7362cd6c60e5 (ACPI video: Harden video bus adding.) Some platforms don't have _DOS control method, but the ACPI backlight still works. We should not invoke _DOS for these platforms. https://bugzilla.kernel.org/show_bug.cgi?id=43168 Cc: Igor Murzov Cc: stable@vger.kernel.org Signed-off-by: Zhang Rui Signed-off-by: Len Brown --- drivers/acpi/video.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 9577b6fa2650..4134b300b9cd 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -558,6 +558,8 @@ acpi_video_bus_DOS(struct acpi_video_bus *video, int bios_flag, int lcd_flag) union acpi_object arg0 = { ACPI_TYPE_INTEGER }; struct acpi_object_list args = { 1, &arg0 }; + if (!video->cap._DOS) + return 0; if (bios_flag < 0 || bios_flag > 3 || lcd_flag < 0 || lcd_flag > 1) return -EINVAL; -- cgit v1.2.3-59-g8ed1b From 5f1601261050251a5ca293378b492a69d590dacb Mon Sep 17 00:00:00 2001 From: Stuart Hayes Date: Wed, 13 Jun 2012 16:10:45 -0500 Subject: acpi_pad: fix power_saving thread deadlock The acpi_pad driver can get stuck in destroy_power_saving_task() waiting for kthread_stop() to stop a power_saving thread. The problem is that the isolated_cpus_lock mutex is owned when destroy_power_saving_task() calls kthread_stop(), which waits for a power_saving thread to end, and the power_saving thread tries to acquire the isolated_cpus_lock when it calls round_robin_cpu(). This patch fixes the issue by making round_robin_cpu() use its own mutex. https://bugzilla.kernel.org/show_bug.cgi?id=42981 Cc: stable@vger.kernel.org Signed-off-by: Stuart Hayes Signed-off-by: Len Brown --- drivers/acpi/acpi_pad.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c index a43fa1a57d57..1502c50273b5 100644 --- a/drivers/acpi/acpi_pad.c +++ b/drivers/acpi/acpi_pad.c @@ -36,6 +36,7 @@ #define ACPI_PROCESSOR_AGGREGATOR_DEVICE_NAME "Processor Aggregator" #define ACPI_PROCESSOR_AGGREGATOR_NOTIFY 0x80 static DEFINE_MUTEX(isolated_cpus_lock); +static DEFINE_MUTEX(round_robin_lock); static unsigned long power_saving_mwait_eax; @@ -107,7 +108,7 @@ static void round_robin_cpu(unsigned int tsk_index) if (!alloc_cpumask_var(&tmp, GFP_KERNEL)) return; - mutex_lock(&isolated_cpus_lock); + mutex_lock(&round_robin_lock); cpumask_clear(tmp); for_each_cpu(cpu, pad_busy_cpus) cpumask_or(tmp, tmp, topology_thread_cpumask(cpu)); @@ -116,7 +117,7 @@ static void round_robin_cpu(unsigned int tsk_index) if (cpumask_empty(tmp)) cpumask_andnot(tmp, cpu_online_mask, pad_busy_cpus); if (cpumask_empty(tmp)) { - mutex_unlock(&isolated_cpus_lock); + mutex_unlock(&round_robin_lock); return; } for_each_cpu(cpu, tmp) { @@ -131,7 +132,7 @@ static void round_robin_cpu(unsigned int tsk_index) tsk_in_cpu[tsk_index] = preferred_cpu; cpumask_set_cpu(preferred_cpu, pad_busy_cpus); cpu_weight[preferred_cpu]++; - mutex_unlock(&isolated_cpus_lock); + mutex_unlock(&round_robin_lock); set_cpus_allowed_ptr(current, cpumask_of(preferred_cpu)); } -- cgit v1.2.3-59-g8ed1b From 5ae95aefb73b32ec4e7c46554304042ba82230ca Mon Sep 17 00:00:00 2001 From: Shawn Guo Date: Tue, 5 Jun 2012 15:16:43 +0800 Subject: ARM: imx6q: fix suspend regression caused by common clk migration When moving to common clk framework, the imx6q clks rom and mmdc_ch1_axi get different on/off states than old clk driver, which breaks suspend function. There might be a better way to manage these clocks, but let's takes the old clk driver approach to fix the regression first. Signed-off-by: Shawn Guo Signed-off-by: Olof Johansson --- arch/arm/mach-imx/clk-imx6q.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-imx/clk-imx6q.c b/arch/arm/mach-imx/clk-imx6q.c index 17dc66a085a5..e1a17ac7b3b4 100644 --- a/arch/arm/mach-imx/clk-imx6q.c +++ b/arch/arm/mach-imx/clk-imx6q.c @@ -152,13 +152,14 @@ enum mx6q_clks { ssi2, ssi3, uart_ipg, uart_serial, usboh3, usdhc1, usdhc2, usdhc3, usdhc4, vdo_axi, vpu_axi, cko1, pll1_sys, pll2_bus, pll3_usb_otg, pll4_audio, pll5_video, pll6_mlb, pll7_usb_host, pll8_enet, ssi1_ipg, - ssi2_ipg, ssi3_ipg, clk_max + ssi2_ipg, ssi3_ipg, rom, + clk_max }; static struct clk *clk[clk_max]; static enum mx6q_clks const clks_init_on[] __initconst = { - mmdc_ch0_axi, mmdc_ch1_axi, + mmdc_ch0_axi, rom, }; int __init mx6q_clocks_init(void) @@ -364,6 +365,7 @@ int __init mx6q_clocks_init(void) clk[gpmi_bch] = imx_clk_gate2("gpmi_bch", "usdhc4", base + 0x78, 26); clk[gpmi_io] = imx_clk_gate2("gpmi_io", "enfc", base + 0x78, 28); clk[gpmi_apb] = imx_clk_gate2("gpmi_apb", "usdhc3", base + 0x78, 30); + clk[rom] = imx_clk_gate2("rom", "ahb", base + 0x7c, 0); clk[sata] = imx_clk_gate2("sata", "ipg", base + 0x7c, 4); clk[sdma] = imx_clk_gate2("sdma", "ahb", base + 0x7c, 6); clk[spba] = imx_clk_gate2("spba", "ipg", base + 0x7c, 12); -- cgit v1.2.3-59-g8ed1b From 87fac288083db40b5d5ab845393be268357c8827 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sat, 30 Jun 2012 15:30:46 -0700 Subject: linux/irq.h: fix kernel-doc warning Fix kernel-doc warning. This struct member was removed in commit 875682648b89 ("irq: Remove irq_chip->release()") so remove its associated kernel-doc entry also. Warning(include/linux/irq.h:338): Excess struct/union/enum/typedef member 'release' description in 'irq_chip' Signed-off-by: Randy Dunlap Cc: Richard Weinberger Cc: Thomas Gleixner Signed-off-by: Linus Torvalds --- include/linux/irq.h | 2 -- 1 file changed, 2 deletions(-) diff --git a/include/linux/irq.h b/include/linux/irq.h index 61f5cec031e0..a5261e3d2e3c 100644 --- a/include/linux/irq.h +++ b/include/linux/irq.h @@ -301,8 +301,6 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d) * @irq_pm_shutdown: function called from core code on shutdown once per chip * @irq_print_chip: optional to print special chip info in show_interrupts * @flags: chip specific flags - * - * @release: release function solely used by UML */ struct irq_chip { const char *name; -- cgit v1.2.3-59-g8ed1b From 4f0f4af59cb07bcf44d3c07a9e8c26df54d9fff8 Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Sat, 30 Jun 2012 15:37:24 -0700 Subject: printk.c: fix kernel-doc warnings Fix kernel-doc warnings in printk.c: use correct parameter name. Warning(kernel/printk.c:2429): No description found for parameter 'buf' Warning(kernel/printk.c:2429): Excess function parameter 'line' description in 'kmsg_dump_get_buffer' Signed-off-by: Randy Dunlap Signed-off-by: Linus Torvalds --- kernel/printk.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/printk.c b/kernel/printk.c index 5ae6b09e3805..dba18211685e 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -2538,7 +2538,7 @@ EXPORT_SYMBOL_GPL(kmsg_dump_get_line); * kmsg_dump_get_buffer - copy kmsg log lines * @dumper: registered kmsg dumper * @syslog: include the "<4>" prefixes - * @line: buffer to copy the line to + * @buf: buffer to copy the line to * @size: maximum size of the buffer * @len: length of line placed into buffer * -- cgit v1.2.3-59-g8ed1b From 6887a4131da3adaab011613776d865f4bcfb5678 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 30 Jun 2012 16:08:57 -0700 Subject: Linux 3.5-rc5 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 3fdfde2c1b7d..81ea15450049 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 5 SUBLEVEL = 0 -EXTRAVERSION = -rc4 +EXTRAVERSION = -rc5 NAME = Saber-toothed Squirrel # *DOCUMENTATION* -- cgit v1.2.3-59-g8ed1b From 0e90b49ca4b891f085b57559a3071a4feefb496c Mon Sep 17 00:00:00 2001 From: Mitch A Williams Date: Sat, 30 Jun 2012 00:23:19 +0000 Subject: igbvf: fix divide by zero Using ethtool -C ethX rx-usecs 0 crashes with a divide by zero. Refactor this function to fix this issue and make it more clear what the intent of each conditional is. Add comment regarding using a setting of zero. CC: stable [3.3+] CC: David Ahern Signed-off-by: Mitch Williams Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/igbvf/ethtool.c | 29 ++++++++++++++++++----------- 1 file changed, 18 insertions(+), 11 deletions(-) diff --git a/drivers/net/ethernet/intel/igbvf/ethtool.c b/drivers/net/ethernet/intel/igbvf/ethtool.c index 8ce67064b9c5..90eef07943f4 100644 --- a/drivers/net/ethernet/intel/igbvf/ethtool.c +++ b/drivers/net/ethernet/intel/igbvf/ethtool.c @@ -357,21 +357,28 @@ static int igbvf_set_coalesce(struct net_device *netdev, struct igbvf_adapter *adapter = netdev_priv(netdev); struct e1000_hw *hw = &adapter->hw; - if ((ec->rx_coalesce_usecs > IGBVF_MAX_ITR_USECS) || - ((ec->rx_coalesce_usecs > 3) && - (ec->rx_coalesce_usecs < IGBVF_MIN_ITR_USECS)) || - (ec->rx_coalesce_usecs == 2)) - return -EINVAL; - - /* convert to rate of irq's per second */ - if (ec->rx_coalesce_usecs && ec->rx_coalesce_usecs <= 3) { + if ((ec->rx_coalesce_usecs >= IGBVF_MIN_ITR_USECS) && + (ec->rx_coalesce_usecs <= IGBVF_MAX_ITR_USECS)) { + adapter->current_itr = ec->rx_coalesce_usecs << 2; + adapter->requested_itr = 1000000000 / + (adapter->current_itr * 256); + } else if ((ec->rx_coalesce_usecs == 3) || + (ec->rx_coalesce_usecs == 2)) { adapter->current_itr = IGBVF_START_ITR; adapter->requested_itr = ec->rx_coalesce_usecs; - } else { - adapter->current_itr = ec->rx_coalesce_usecs << 2; + } else if (ec->rx_coalesce_usecs == 0) { + /* + * The user's desire is to turn off interrupt throttling + * altogether, but due to HW limitations, we can't do that. + * Instead we set a very small value in EITR, which would + * allow ~967k interrupts per second, but allow the adapter's + * internal clocking to still function properly. + */ + adapter->current_itr = 4; adapter->requested_itr = 1000000000 / (adapter->current_itr * 256); - } + } else + return -EINVAL; writel(adapter->current_itr, hw->hw_addr + adapter->rx_ring->itr_register); -- cgit v1.2.3-59-g8ed1b From 4244854d22bf8f782698c5224b9191c8d2d42610 Mon Sep 17 00:00:00 2001 From: Neil Horman Date: Sat, 30 Jun 2012 03:04:26 +0000 Subject: sctp: be more restrictive in transport selection on bundled sacks It was noticed recently that when we send data on a transport, its possible that we might bundle a sack that arrived on a different transport. While this isn't a major problem, it does go against the SHOULD requirement in section 6.4 of RFC 2960: An endpoint SHOULD transmit reply chunks (e.g., SACK, HEARTBEAT ACK, etc.) to the same destination transport address from which it received the DATA or control chunk to which it is replying. This rule should also be followed if the endpoint is bundling DATA chunks together with the reply chunk. This patch seeks to correct that. It restricts the bundling of sack operations to only those transports which have moved the ctsn of the association forward since the last sack. By doing this we guarantee that we only bundle outbound saks on a transport that has received a chunk since the last sack. This brings us into stricter compliance with the RFC. Vlad had initially suggested that we strictly allow only sack bundling on the transport that last moved the ctsn forward. While this makes sense, I was concerned that doing so prevented us from bundling in the case where we had received chunks that moved the ctsn on multiple transports. In those cases, the RFC allows us to select any of the transports having received chunks to bundle the sack on. so I've modified the approach to allow for that, by adding a state variable to each transport that tracks weather it has moved the ctsn since the last sack. This I think keeps our behavior (and performance), close enough to our current profile that I think we can do this without a sysctl knob to enable/disable it. Signed-off-by: Neil Horman CC: Vlad Yaseivch CC: David S. Miller CC: linux-sctp@vger.kernel.org Reported-by: Michele Baldessari Reported-by: sorin serban Acked-by: Vlad Yasevich Signed-off-by: David S. Miller --- include/net/sctp/structs.h | 4 ++++ include/net/sctp/tsnmap.h | 3 ++- net/sctp/associola.c | 1 + net/sctp/output.c | 5 +++++ net/sctp/sm_make_chunk.c | 16 ++++++++++++++++ net/sctp/sm_sideeffect.c | 2 +- net/sctp/transport.c | 2 ++ net/sctp/tsnmap.c | 6 +++++- net/sctp/ulpevent.c | 3 ++- net/sctp/ulpqueue.c | 2 +- 10 files changed, 39 insertions(+), 5 deletions(-) diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index e4652fe58958..fecdf31816f2 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -912,6 +912,9 @@ struct sctp_transport { /* Is this structure kfree()able? */ malloced:1; + /* Has this transport moved the ctsn since we last sacked */ + __u32 sack_generation; + struct flowi fl; /* This is the peer's IP address and port. */ @@ -1584,6 +1587,7 @@ struct sctp_association { */ __u8 sack_needed; /* Do we need to sack the peer? */ __u32 sack_cnt; + __u32 sack_generation; /* These are capabilities which our peer advertised. */ __u8 ecn_capable:1, /* Can peer do ECN? */ diff --git a/include/net/sctp/tsnmap.h b/include/net/sctp/tsnmap.h index e7728bc14ccf..2c5d2b4d5d1e 100644 --- a/include/net/sctp/tsnmap.h +++ b/include/net/sctp/tsnmap.h @@ -117,7 +117,8 @@ void sctp_tsnmap_free(struct sctp_tsnmap *map); int sctp_tsnmap_check(const struct sctp_tsnmap *, __u32 tsn); /* Mark this TSN as seen. */ -int sctp_tsnmap_mark(struct sctp_tsnmap *, __u32 tsn); +int sctp_tsnmap_mark(struct sctp_tsnmap *, __u32 tsn, + struct sctp_transport *trans); /* Mark this TSN and all lower as seen. */ void sctp_tsnmap_skip(struct sctp_tsnmap *map, __u32 tsn); diff --git a/net/sctp/associola.c b/net/sctp/associola.c index 5bc9ab161b37..b16517ee1aaf 100644 --- a/net/sctp/associola.c +++ b/net/sctp/associola.c @@ -271,6 +271,7 @@ static struct sctp_association *sctp_association_init(struct sctp_association *a */ asoc->peer.sack_needed = 1; asoc->peer.sack_cnt = 0; + asoc->peer.sack_generation = 1; /* Assume that the peer will tell us if he recognizes ASCONF * as part of INIT exchange. diff --git a/net/sctp/output.c b/net/sctp/output.c index f1b7d4bb591e..6ae47acaaec6 100644 --- a/net/sctp/output.c +++ b/net/sctp/output.c @@ -248,6 +248,11 @@ static sctp_xmit_t sctp_packet_bundle_sack(struct sctp_packet *pkt, /* If the SACK timer is running, we have a pending SACK */ if (timer_pending(timer)) { struct sctp_chunk *sack; + + if (pkt->transport->sack_generation != + pkt->transport->asoc->peer.sack_generation) + return retval; + asoc->a_rwnd = asoc->rwnd; sack = sctp_make_sack(asoc); if (sack) { diff --git a/net/sctp/sm_make_chunk.c b/net/sctp/sm_make_chunk.c index a85eeeb55dd0..b6de71efb140 100644 --- a/net/sctp/sm_make_chunk.c +++ b/net/sctp/sm_make_chunk.c @@ -734,8 +734,10 @@ struct sctp_chunk *sctp_make_sack(const struct sctp_association *asoc) int len; __u32 ctsn; __u16 num_gabs, num_dup_tsns; + struct sctp_association *aptr = (struct sctp_association *)asoc; struct sctp_tsnmap *map = (struct sctp_tsnmap *)&asoc->peer.tsn_map; struct sctp_gap_ack_block gabs[SCTP_MAX_GABS]; + struct sctp_transport *trans; memset(gabs, 0, sizeof(gabs)); ctsn = sctp_tsnmap_get_ctsn(map); @@ -805,6 +807,20 @@ struct sctp_chunk *sctp_make_sack(const struct sctp_association *asoc) sctp_addto_chunk(retval, sizeof(__u32) * num_dup_tsns, sctp_tsnmap_get_dups(map)); + /* Once we have a sack generated, check to see what our sack + * generation is, if its 0, reset the transports to 0, and reset + * the association generation to 1 + * + * The idea is that zero is never used as a valid generation for the + * association so no transport will match after a wrap event like this, + * Until the next sack + */ + if (++aptr->peer.sack_generation == 0) { + list_for_each_entry(trans, &asoc->peer.transport_addr_list, + transports) + trans->sack_generation = 0; + aptr->peer.sack_generation = 1; + } nodata: return retval; } diff --git a/net/sctp/sm_sideeffect.c b/net/sctp/sm_sideeffect.c index c96d1a81cf42..8716da1a8592 100644 --- a/net/sctp/sm_sideeffect.c +++ b/net/sctp/sm_sideeffect.c @@ -1268,7 +1268,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type, case SCTP_CMD_REPORT_TSN: /* Record the arrival of a TSN. */ error = sctp_tsnmap_mark(&asoc->peer.tsn_map, - cmd->obj.u32); + cmd->obj.u32, NULL); break; case SCTP_CMD_REPORT_FWDTSN: diff --git a/net/sctp/transport.c b/net/sctp/transport.c index b026ba0c6992..1dcceb6e0ce6 100644 --- a/net/sctp/transport.c +++ b/net/sctp/transport.c @@ -68,6 +68,8 @@ static struct sctp_transport *sctp_transport_init(struct sctp_transport *peer, peer->af_specific = sctp_get_af_specific(addr->sa.sa_family); memset(&peer->saddr, 0, sizeof(union sctp_addr)); + peer->sack_generation = 0; + /* From 6.3.1 RTO Calculation: * * C1) Until an RTT measurement has been made for a packet sent to the diff --git a/net/sctp/tsnmap.c b/net/sctp/tsnmap.c index f1e40cebc981..b5fb7c409023 100644 --- a/net/sctp/tsnmap.c +++ b/net/sctp/tsnmap.c @@ -114,7 +114,8 @@ int sctp_tsnmap_check(const struct sctp_tsnmap *map, __u32 tsn) /* Mark this TSN as seen. */ -int sctp_tsnmap_mark(struct sctp_tsnmap *map, __u32 tsn) +int sctp_tsnmap_mark(struct sctp_tsnmap *map, __u32 tsn, + struct sctp_transport *trans) { u16 gap; @@ -133,6 +134,9 @@ int sctp_tsnmap_mark(struct sctp_tsnmap *map, __u32 tsn) */ map->max_tsn_seen++; map->cumulative_tsn_ack_point++; + if (trans) + trans->sack_generation = + trans->asoc->peer.sack_generation; map->base_tsn++; } else { /* Either we already have a gap, or about to record a gap, so diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c index 8a84017834c2..33d894776192 100644 --- a/net/sctp/ulpevent.c +++ b/net/sctp/ulpevent.c @@ -715,7 +715,8 @@ struct sctp_ulpevent *sctp_ulpevent_make_rcvmsg(struct sctp_association *asoc, * can mark it as received so the tsn_map is updated correctly. */ if (sctp_tsnmap_mark(&asoc->peer.tsn_map, - ntohl(chunk->subh.data_hdr->tsn))) + ntohl(chunk->subh.data_hdr->tsn), + chunk->transport)) goto fail_mark; /* First calculate the padding, so we don't inadvertently diff --git a/net/sctp/ulpqueue.c b/net/sctp/ulpqueue.c index f2d1de7f2ffb..f5a6a4f4faf7 100644 --- a/net/sctp/ulpqueue.c +++ b/net/sctp/ulpqueue.c @@ -1051,7 +1051,7 @@ void sctp_ulpq_renege(struct sctp_ulpq *ulpq, struct sctp_chunk *chunk, if (chunk && (freed >= needed)) { __u32 tsn; tsn = ntohl(chunk->subh.data_hdr->tsn); - sctp_tsnmap_mark(&asoc->peer.tsn_map, tsn); + sctp_tsnmap_mark(&asoc->peer.tsn_map, tsn, chunk->transport); sctp_ulpq_tail_data(ulpq, chunk, gfp); sctp_ulpq_partial_delivery(ulpq, chunk, gfp); -- cgit v1.2.3-59-g8ed1b From 6416c0409dda00aa66b2a4615044fb59d80f6bb2 Mon Sep 17 00:00:00 2001 From: Paul Parsons Date: Mon, 11 Jun 2012 15:31:14 +0100 Subject: ARM: pxa: hx4700: Fix basic suspend/resume Basic suspend/resume is fixed by ensuring that the PGSR registers are set correctly before sleep mode is entered. In particular four of the active low resets need to be driven high while in sleep mode, otherwise the unit resets itself instead of suspending. Another problem was that the PCFR_GPROD bit is set by the HTC bootloader; this caused GPIO reset (i.e. the reset button) to fail immediately after returning from sleep mode. Signed-off-by: Paul Parsons Cc: Philipp Zabel Signed-off-by: Haojian Zhuang --- arch/arm/mach-pxa/hx4700.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c index d09da6a746b8..d3de84b0dcbe 100644 --- a/arch/arm/mach-pxa/hx4700.c +++ b/arch/arm/mach-pxa/hx4700.c @@ -127,7 +127,11 @@ static unsigned long hx4700_pin_config[] __initdata = { GPIO19_SSP2_SCLK, GPIO86_SSP2_RXD, GPIO87_SSP2_TXD, - GPIO88_GPIO, + GPIO88_GPIO | MFP_LPM_DRIVE_HIGH, /* TSC2046_CS */ + + /* BQ24022 Regulator */ + GPIO72_GPIO | MFP_LPM_KEEP_OUTPUT, /* BQ24022_nCHARGE_EN */ + GPIO96_GPIO | MFP_LPM_KEEP_OUTPUT, /* BQ24022_ISET2 */ /* HX4700 specific input GPIOs */ GPIO12_GPIO | WAKEUP_ON_EDGE_RISE, /* ASIC3_IRQ */ @@ -135,6 +139,10 @@ static unsigned long hx4700_pin_config[] __initdata = { GPIO14_GPIO, /* nWLAN_IRQ */ /* HX4700 specific output GPIOs */ + GPIO61_GPIO | MFP_LPM_DRIVE_HIGH, /* W3220_nRESET */ + GPIO71_GPIO | MFP_LPM_DRIVE_HIGH, /* ASIC3_nRESET */ + GPIO81_GPIO | MFP_LPM_DRIVE_HIGH, /* CPU_GP_nRESET */ + GPIO116_GPIO | MFP_LPM_DRIVE_HIGH, /* CPU_HW_nRESET */ GPIO102_GPIO | MFP_LPM_DRIVE_LOW, /* SYNAPTICS_POWER_ON */ GPIO10_GPIO, /* GSM_IRQ */ @@ -872,14 +880,19 @@ static struct gpio global_gpios[] = { { GPIO110_HX4700_LCD_LVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_LVDD" }, { GPIO111_HX4700_LCD_AVDD_3V3_ON, GPIOF_OUT_INIT_HIGH, "LCD_AVDD" }, { GPIO32_HX4700_RS232_ON, GPIOF_OUT_INIT_HIGH, "RS232_ON" }, + { GPIO61_HX4700_W3220_nRESET, GPIOF_OUT_INIT_HIGH, "W3220_nRESET" }, { GPIO71_HX4700_ASIC3_nRESET, GPIOF_OUT_INIT_HIGH, "ASIC3_nRESET" }, + { GPIO81_HX4700_CPU_GP_nRESET, GPIOF_OUT_INIT_HIGH, "CPU_GP_nRESET" }, { GPIO82_HX4700_EUART_RESET, GPIOF_OUT_INIT_HIGH, "EUART_RESET" }, + { GPIO116_HX4700_CPU_HW_nRESET, GPIOF_OUT_INIT_HIGH, "CPU_HW_nRESET" }, }; static void __init hx4700_init(void) { int ret; + PCFR = PCFR_GPR_EN | PCFR_OPDE; + pxa2xx_mfp_config(ARRAY_AND_SIZE(hx4700_pin_config)); gpio_set_wake(GPIO12_HX4700_ASIC3_IRQ, 1); ret = gpio_request_array(ARRAY_AND_SIZE(global_gpios)); -- cgit v1.2.3-59-g8ed1b From 2e1706f234f86ff71056ef69683d734fbf7e9e40 Mon Sep 17 00:00:00 2001 From: Bruce Allan Date: Sat, 30 Jun 2012 20:02:42 +0000 Subject: e1000e: remove use of IP payload checksum Currently only used when packet split mode is enabled with jumbo frames, IP payload checksum (for fragmented UDP packets) is mutually exclusive with receive hashing offload since the hardware uses the same space in the receive descriptor for the hardware-provided packet checksum and the RSS hash, respectively. Users currently must disable jumbos when receive hashing offload is enabled, or vice versa, because of this incompatibility. Since testing has shown that IP payload checksum does not provide any real benefit, just remove it so that there is no longer a choice between jumbos or receive hashing offload but not both as done in other Intel GbE drivers (e.g. e1000, igb). Also, add a missing check for IP checksum error reported by the hardware; let the stack verify the checksum when this happens. CC: stable [3.4] Signed-off-by: Bruce Allan Tested-by: Aaron Brown Signed-off-by: Jeff Kirsher Signed-off-by: David S. Miller --- drivers/net/ethernet/intel/e1000e/defines.h | 1 + drivers/net/ethernet/intel/e1000e/netdev.c | 75 ++++++----------------------- 2 files changed, 15 insertions(+), 61 deletions(-) diff --git a/drivers/net/ethernet/intel/e1000e/defines.h b/drivers/net/ethernet/intel/e1000e/defines.h index 351a4097b2ba..76edbc1be33b 100644 --- a/drivers/net/ethernet/intel/e1000e/defines.h +++ b/drivers/net/ethernet/intel/e1000e/defines.h @@ -103,6 +103,7 @@ #define E1000_RXD_ERR_SEQ 0x04 /* Sequence Error */ #define E1000_RXD_ERR_CXE 0x10 /* Carrier Extension Error */ #define E1000_RXD_ERR_TCPE 0x20 /* TCP/UDP Checksum Error */ +#define E1000_RXD_ERR_IPE 0x40 /* IP Checksum Error */ #define E1000_RXD_ERR_RXE 0x80 /* Rx Data Error */ #define E1000_RXD_SPC_VLAN_MASK 0x0FFF /* VLAN ID is in lower 12 bits */ diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c index 31d37a2b5ba8..623e30b9964d 100644 --- a/drivers/net/ethernet/intel/e1000e/netdev.c +++ b/drivers/net/ethernet/intel/e1000e/netdev.c @@ -496,7 +496,7 @@ static void e1000_receive_skb(struct e1000_adapter *adapter, * @sk_buff: socket buffer with received data **/ static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err, - __le16 csum, struct sk_buff *skb) + struct sk_buff *skb) { u16 status = (u16)status_err; u8 errors = (u8)(status_err >> 24); @@ -511,8 +511,8 @@ static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err, if (status & E1000_RXD_STAT_IXSM) return; - /* TCP/UDP checksum error bit is set */ - if (errors & E1000_RXD_ERR_TCPE) { + /* TCP/UDP checksum error bit or IP checksum error bit is set */ + if (errors & (E1000_RXD_ERR_TCPE | E1000_RXD_ERR_IPE)) { /* let the stack verify checksum errors */ adapter->hw_csum_err++; return; @@ -523,19 +523,7 @@ static void e1000_rx_checksum(struct e1000_adapter *adapter, u32 status_err, return; /* It must be a TCP or UDP packet with a valid checksum */ - if (status & E1000_RXD_STAT_TCPCS) { - /* TCP checksum is good */ - skb->ip_summed = CHECKSUM_UNNECESSARY; - } else { - /* - * IP fragment with UDP payload - * Hardware complements the payload checksum, so we undo it - * and then put the value in host order for further stack use. - */ - __sum16 sum = (__force __sum16)swab16((__force u16)csum); - skb->csum = csum_unfold(~sum); - skb->ip_summed = CHECKSUM_COMPLETE; - } + skb->ip_summed = CHECKSUM_UNNECESSARY; adapter->hw_csum_good++; } @@ -954,8 +942,7 @@ static bool e1000_clean_rx_irq(struct e1000_ring *rx_ring, int *work_done, skb_put(skb, length); /* Receive Checksum Offload */ - e1000_rx_checksum(adapter, staterr, - rx_desc->wb.lower.hi_dword.csum_ip.csum, skb); + e1000_rx_checksum(adapter, staterr, skb); e1000_rx_hash(netdev, rx_desc->wb.lower.hi_dword.rss, skb); @@ -1341,8 +1328,7 @@ copydone: total_rx_bytes += skb->len; total_rx_packets++; - e1000_rx_checksum(adapter, staterr, - rx_desc->wb.lower.hi_dword.csum_ip.csum, skb); + e1000_rx_checksum(adapter, staterr, skb); e1000_rx_hash(netdev, rx_desc->wb.lower.hi_dword.rss, skb); @@ -1512,9 +1498,8 @@ static bool e1000_clean_jumbo_rx_irq(struct e1000_ring *rx_ring, int *work_done, } } - /* Receive Checksum Offload XXX recompute due to CRC strip? */ - e1000_rx_checksum(adapter, staterr, - rx_desc->wb.lower.hi_dword.csum_ip.csum, skb); + /* Receive Checksum Offload */ + e1000_rx_checksum(adapter, staterr, skb); e1000_rx_hash(netdev, rx_desc->wb.lower.hi_dword.rss, skb); @@ -3098,19 +3083,10 @@ static void e1000_configure_rx(struct e1000_adapter *adapter) /* Enable Receive Checksum Offload for TCP and UDP */ rxcsum = er32(RXCSUM); - if (adapter->netdev->features & NETIF_F_RXCSUM) { + if (adapter->netdev->features & NETIF_F_RXCSUM) rxcsum |= E1000_RXCSUM_TUOFL; - - /* - * IPv4 payload checksum for UDP fragments must be - * used in conjunction with packet-split. - */ - if (adapter->rx_ps_pages) - rxcsum |= E1000_RXCSUM_IPPCSE; - } else { + else rxcsum &= ~E1000_RXCSUM_TUOFL; - /* no need to clear IPPCSE as it defaults to 0 */ - } ew32(RXCSUM, rxcsum); if (adapter->hw.mac.type == e1000_pch2lan) { @@ -5241,22 +5217,10 @@ static int e1000_change_mtu(struct net_device *netdev, int new_mtu) int max_frame = new_mtu + ETH_HLEN + ETH_FCS_LEN; /* Jumbo frame support */ - if (max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) { - if (!(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) { - e_err("Jumbo Frames not supported.\n"); - return -EINVAL; - } - - /* - * IP payload checksum (enabled with jumbos/packet-split when - * Rx checksum is enabled) and generation of RSS hash is - * mutually exclusive in the hardware. - */ - if ((netdev->features & NETIF_F_RXCSUM) && - (netdev->features & NETIF_F_RXHASH)) { - e_err("Jumbo frames cannot be enabled when both receive checksum offload and receive hashing are enabled. Disable one of the receive offload features before enabling jumbos.\n"); - return -EINVAL; - } + if ((max_frame > ETH_FRAME_LEN + ETH_FCS_LEN) && + !(adapter->flags & FLAG_HAS_JUMBO_FRAMES)) { + e_err("Jumbo Frames not supported.\n"); + return -EINVAL; } /* Supported frame sizes */ @@ -6030,17 +5994,6 @@ static int e1000_set_features(struct net_device *netdev, NETIF_F_RXALL))) return 0; - /* - * IP payload checksum (enabled with jumbos/packet-split when Rx - * checksum is enabled) and generation of RSS hash is mutually - * exclusive in the hardware. - */ - if (adapter->rx_ps_pages && - (features & NETIF_F_RXCSUM) && (features & NETIF_F_RXHASH)) { - e_err("Enabling both receive checksum offload and receive hashing is not possible with jumbo frames. Disable jumbos or enable only one of the receive offload features.\n"); - return -EINVAL; - } - if (changed & NETIF_F_RXFCS) { if (features & NETIF_F_RXFCS) { adapter->flags2 &= ~FLAG2_CRC_STRIPPING; -- cgit v1.2.3-59-g8ed1b From 19b52abe3c5d759661500a1dc810924369b2ad46 Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Wed, 27 Jun 2012 17:28:57 +0100 Subject: ARM: 7438/1: fill possible PMD empty section gaps On ARM with the 2-level page table format, a PMD entry is represented by two consecutive section entries covering 2MB of virtual space. However, static mappings always were allowed to use separate 1MB section entries. This means in practice that a static mapping may create half populated PMDs via create_mapping(). Since commit 0536bdf33f (ARM: move iotable mappings within the vmalloc region) those static mappings are located in the vmalloc area. We must ensure no such half populated PMDs are accessible once vmalloc() or ioremap() start looking at the vmalloc area for nearby free virtual address ranges, or various things leading to a kernel crash will happen. Signed-off-by: Nicolas Pitre Reported-by: Santosh Shilimkar Tested-by: "R, Sricharan" Reviewed-by: Catalin Marinas Cc: stable@vger.kernel.org Signed-off-by: Russell King --- arch/arm/mm/mmu.c | 74 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index e5dad60b558b..cf4528d51774 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -791,6 +791,79 @@ void __init iotable_init(struct map_desc *io_desc, int nr) } } +#ifndef CONFIG_ARM_LPAE + +/* + * The Linux PMD is made of two consecutive section entries covering 2MB + * (see definition in include/asm/pgtable-2level.h). However a call to + * create_mapping() may optimize static mappings by using individual + * 1MB section mappings. This leaves the actual PMD potentially half + * initialized if the top or bottom section entry isn't used, leaving it + * open to problems if a subsequent ioremap() or vmalloc() tries to use + * the virtual space left free by that unused section entry. + * + * Let's avoid the issue by inserting dummy vm entries covering the unused + * PMD halves once the static mappings are in place. + */ + +static void __init pmd_empty_section_gap(unsigned long addr) +{ + struct vm_struct *vm; + + vm = early_alloc_aligned(sizeof(*vm), __alignof__(*vm)); + vm->addr = (void *)addr; + vm->size = SECTION_SIZE; + vm->flags = VM_IOREMAP | VM_ARM_STATIC_MAPPING; + vm->caller = pmd_empty_section_gap; + vm_area_add_early(vm); +} + +static void __init fill_pmd_gaps(void) +{ + struct vm_struct *vm; + unsigned long addr, next = 0; + pmd_t *pmd; + + /* we're still single threaded hence no lock needed here */ + for (vm = vmlist; vm; vm = vm->next) { + if (!(vm->flags & VM_ARM_STATIC_MAPPING)) + continue; + addr = (unsigned long)vm->addr; + if (addr < next) + continue; + + /* + * Check if this vm starts on an odd section boundary. + * If so and the first section entry for this PMD is free + * then we block the corresponding virtual address. + */ + if ((addr & ~PMD_MASK) == SECTION_SIZE) { + pmd = pmd_off_k(addr); + if (pmd_none(*pmd)) + pmd_empty_section_gap(addr & PMD_MASK); + } + + /* + * Then check if this vm ends on an odd section boundary. + * If so and the second section entry for this PMD is empty + * then we block the corresponding virtual address. + */ + addr += vm->size; + if ((addr & ~PMD_MASK) == SECTION_SIZE) { + pmd = pmd_off_k(addr) + 1; + if (pmd_none(*pmd)) + pmd_empty_section_gap(addr); + } + + /* no need to look at any vm entry until we hit the next PMD */ + next = (addr + PMD_SIZE - 1) & PMD_MASK; + } +} + +#else +#define fill_pmd_gaps() do { } while (0) +#endif + static void * __initdata vmalloc_min = (void *)(VMALLOC_END - (240 << 20) - VMALLOC_OFFSET); @@ -1072,6 +1145,7 @@ static void __init devicemaps_init(struct machine_desc *mdesc) */ if (mdesc->map_io) mdesc->map_io(); + fill_pmd_gaps(); /* * Finally flush the caches and tlb to ensure that we're in a -- cgit v1.2.3-59-g8ed1b From bc1d7702910c7c7e88eb60b58429dbfe293683ce Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Thu, 28 Jun 2012 19:28:57 +0000 Subject: powerpc/xmon: Use cpumask iterator to avoid warning We have a bug report where the kernel hits a warning in the cpumask code: WARNING: at include/linux/cpumask.h:107 Which is: WARN_ON_ONCE(cpu >= nr_cpumask_bits); The backtrace is: cpu_cmd cmds xmon_core xmon die xmon is iterating through 0 to NR_CPUS. I'm not sure why we are still open coding this but iterating above nr_cpu_ids is definitely a bug. This patch iterates through all possible cpus, in case we issue a system reset and CPUs in an offline state call in. Perhaps the old code was trying to handle CPUs that were in the partition but were never started (eg kexec into a kernel with an nr_cpus= boot option). They are going to die way before we get into xmon since we haven't set any kernel state up for them. Signed-off-by: Anton Blanchard CC: Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/xmon/xmon.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 0f3ab06d2222..eab3492a45c5 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -971,7 +971,7 @@ static int cpu_cmd(void) /* print cpus waiting or in xmon */ printf("cpus stopped:"); count = 0; - for (cpu = 0; cpu < NR_CPUS; ++cpu) { + for_each_possible_cpu(cpu) { if (cpumask_test_cpu(cpu, &cpus_in_xmon)) { if (count == 0) printf(" %x", cpu); -- cgit v1.2.3-59-g8ed1b From 2f584a146a2965b82fce89b8d2f95dc5cfe468d0 Mon Sep 17 00:00:00 2001 From: Michael Neuling Date: Mon, 25 Jun 2012 13:33:11 +0000 Subject: powerpc/kvm: sldi should be sld Since we are taking a registers, this should never have been an sldi. Talking to paulus offline, this is the correct fix. Was introduced by: commit 19ccb76a1938ab364a412253daec64613acbf3df Author: Paul Mackerras Date: Sat Jul 23 17:42:46 2011 +1000 Talking to paulus, this shouldn't be a literal. Signed-off-by: Michael Neuling CC: [v3.2+] Signed-off-by: Benjamin Herrenschmidt --- arch/powerpc/kvm/book3s_hv_rmhandlers.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index a84aafce2a12..a1044f43becd 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -810,7 +810,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201) lwz r3,VCORE_NAPPING_THREADS(r5) lwz r4,VCPU_PTID(r9) li r0,1 - sldi r0,r0,r4 + sld r0,r0,r4 andc. r3,r3,r0 /* no sense IPI'ing ourselves */ beq 43f mulli r4,r4,PACA_SIZE /* get paca for thread 0 */ -- cgit v1.2.3-59-g8ed1b From 64941d8930e619ef37227f88c6ee17e2624c65d2 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 2 Jul 2012 15:06:22 +0900 Subject: sh: Fix up se7721 GPIOLIB=y build warnings. Presently the SH7720/21 serial code uses asm/gpio.h to get at the CPU GPIO port definitions, but in the case of GPIOLIB=y this also includes references to generic GPIOLIB routines that we don't have any function declarations for, tripping up on -Werror=implicit-function-declaration with newer gcc versions: CC arch/sh/kernel/cpu/sh3/serial-sh7720.o In file included from include/linux/sh_pfc.h:14:0, from arch/sh/include/asm/gpio.h:23, from arch/sh/kernel/cpu/sh3/serial-sh7720.c:5: include/asm-generic/gpio.h: In function 'gpio_get_value_cansleep': include/asm-generic/gpio.h:220:2: error: implicit declaration of function '__gpio_get_value' [-Werror=implicit-function-declaration] include/asm-generic/gpio.h: In function 'gpio_set_value_cansleep': include/asm-generic/gpio.h:226:2: error: implicit declaration of function '__gpio_set_value' [-Werror=implicit-function-declaration] In file included from arch/sh/include/asm/gpio.h:23:0, from arch/sh/kernel/cpu/sh3/serial-sh7720.c:5: include/linux/sh_pfc.h: At top level: include/linux/sh_pfc.h:121:19: error: field 'chip' has incomplete type Switch to using the cpu/ version for the port definitions explicitly. Signed-off-by: Paul Mundt --- arch/sh/kernel/cpu/sh3/serial-sh7720.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/sh/kernel/cpu/sh3/serial-sh7720.c b/arch/sh/kernel/cpu/sh3/serial-sh7720.c index 8832c526cdf9..c4a0336660dd 100644 --- a/arch/sh/kernel/cpu/sh3/serial-sh7720.c +++ b/arch/sh/kernel/cpu/sh3/serial-sh7720.c @@ -2,7 +2,7 @@ #include #include #include -#include +#include static void sh7720_sci_init_pins(struct uart_port *port, unsigned int cflag) { -- cgit v1.2.3-59-g8ed1b From 396c89b327269c5a90bdd6152b5339e4cd2b8e73 Mon Sep 17 00:00:00 2001 From: Fabio Estevam Date: Mon, 25 Jun 2012 01:17:02 -0300 Subject: ARM: imx27_visstrim_m10: Do not include commit 435ca24 (ARM i.MX: Visstrim_M10: Add board version detection) included , which is a header file about to be deleted according to 9f97da (Disintegrate asm/system.h for ARM) Include instead. Reported-by: Russell King Signed-off-by: Fabio Estevam Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/mach-imx27_visstrim_m10.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c index f76edb96a48a..ba09552fe5fe 100644 --- a/arch/arm/mach-imx/mach-imx27_visstrim_m10.c +++ b/arch/arm/mach-imx/mach-imx27_visstrim_m10.c @@ -38,7 +38,7 @@ #include #include #include -#include +#include #include #include -- cgit v1.2.3-59-g8ed1b From 8f53dc724a83a0082184fa27df80c25c7df47340 Mon Sep 17 00:00:00 2001 From: Hiroshi DOYU Date: Wed, 27 Jun 2012 12:54:01 +0300 Subject: iommu/tegra: smmu: Fix unsleepable memory allocation allo_pdir() is called in smmu_iommu_domain_init() with spin_lock held. memory allocations in it have to be atomic/unsleepable. Signed-off-by: Hiroshi DOYU Reported-by: Chris Wright Acked-by: Chris Wright Cc: stable@vger.kernel.org Signed-off-by: Joerg Roedel --- drivers/iommu/tegra-smmu.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/iommu/tegra-smmu.c b/drivers/iommu/tegra-smmu.c index ecd679043d77..3f3d09d560ea 100644 --- a/drivers/iommu/tegra-smmu.c +++ b/drivers/iommu/tegra-smmu.c @@ -550,13 +550,13 @@ static int alloc_pdir(struct smmu_as *as) return 0; as->pte_count = devm_kzalloc(smmu->dev, - sizeof(as->pte_count[0]) * SMMU_PDIR_COUNT, GFP_KERNEL); + sizeof(as->pte_count[0]) * SMMU_PDIR_COUNT, GFP_ATOMIC); if (!as->pte_count) { dev_err(smmu->dev, "failed to allocate smmu_device PTE cunters\n"); return -ENOMEM; } - as->pdir_page = alloc_page(GFP_KERNEL | __GFP_DMA); + as->pdir_page = alloc_page(GFP_ATOMIC | __GFP_DMA); if (!as->pdir_page) { dev_err(smmu->dev, "failed to allocate smmu_device page directory\n"); -- cgit v1.2.3-59-g8ed1b From 68ee6d22376411f8ec668413f1b632a34192a807 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 27 Jun 2012 12:08:55 +0300 Subject: dma-debug: debugfs_create_bool() takes a u32 pointer Even though it has "bool" in the name, you have pass a u32 pointer to debugfs_create_bool(). Otherwise you get memory corruption in write_file_bool(). Fortunately in this case the corruption happens in an alignment hole between variables so it doesn't cause any problems. Signed-off-by: Dan Carpenter Signed-off-by: Joerg Roedel --- lib/dma-debug.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/lib/dma-debug.c b/lib/dma-debug.c index 518aea714d21..66ce41489133 100644 --- a/lib/dma-debug.c +++ b/lib/dma-debug.c @@ -78,7 +78,7 @@ static LIST_HEAD(free_entries); static DEFINE_SPINLOCK(free_entries_lock); /* Global disable flag - will be set in case of an error */ -static bool global_disable __read_mostly; +static u32 global_disable __read_mostly; /* Global error count */ static u32 error_count; @@ -657,7 +657,7 @@ static int dma_debug_fs_init(void) global_disable_dent = debugfs_create_bool("disabled", 0444, dma_debug_dent, - (u32 *)&global_disable); + &global_disable); if (!global_disable_dent) goto out_err; -- cgit v1.2.3-59-g8ed1b From 3775d4818d72081e2afa2aed2442a2b9ecfc5eab Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Wed, 27 Jun 2012 12:09:18 +0300 Subject: iommu/amd: fix type bug in flush code write_file_bool() modifies 32 bits of data, so "amd_iommu_unmap_flush" needs to be 32 bits as well or we'll corrupt memory. Fortunately it looks like the data is aligned with a gap after the declaration so this is harmless in production. Signed-off-by: Dan Carpenter Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu.c | 2 +- drivers/iommu/amd_iommu_init.c | 2 +- drivers/iommu/amd_iommu_types.h | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index dfe7d37c82c5..625626391f2d 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -404,7 +404,7 @@ static void amd_iommu_stats_init(void) return; de_fflush = debugfs_create_bool("fullflush", 0444, stats_dir, - (u32 *)&amd_iommu_unmap_flush); + &amd_iommu_unmap_flush); amd_iommu_stats_add(&compl_wait); amd_iommu_stats_add(&cnt_map_single); diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index c04ddca7f12f..a33612f3206f 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -129,7 +129,7 @@ u16 amd_iommu_last_bdf; /* largest PCI device id we have to handle */ LIST_HEAD(amd_iommu_unity_map); /* a list of required unity mappings we find in ACPI */ -bool amd_iommu_unmap_flush; /* if true, flush on every unmap */ +u32 amd_iommu_unmap_flush; /* if true, flush on every unmap */ LIST_HEAD(amd_iommu_list); /* list of all AMD IOMMUs in the system */ diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h index 24355559a2ad..c1b1d489817e 100644 --- a/drivers/iommu/amd_iommu_types.h +++ b/drivers/iommu/amd_iommu_types.h @@ -652,7 +652,7 @@ extern unsigned long *amd_iommu_pd_alloc_bitmap; * If true, the addresses will be flushed on unmap time, not when * they are reused */ -extern bool amd_iommu_unmap_flush; +extern u32 amd_iommu_unmap_flush; /* Smallest number of PASIDs supported by any IOMMU in the system */ extern u32 amd_iommu_max_pasids; -- cgit v1.2.3-59-g8ed1b From 95669d788192d351890bfb16785336c2db816356 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Thu, 28 Jun 2012 10:01:31 -0700 Subject: ARM: OMAP2: Overo: init I2C before MMC to fix MMC suspend/resume failure In order for suspend/resume dependencies to work correctly, I2C has to be initialized (more specifically, registered with the driver core) before MMC. Without this, the MMC driver fails to adjust the VMMC regulator (using i2c writes) during the suspend path. Problem found testing suspend/resume on 3730/OveroSTORM platform. Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/board-overo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/board-overo.c b/arch/arm/mach-omap2/board-overo.c index 8fa2fc3a4c3c..779734d8ba37 100644 --- a/arch/arm/mach-omap2/board-overo.c +++ b/arch/arm/mach-omap2/board-overo.c @@ -494,8 +494,8 @@ static void __init overo_init(void) regulator_register_fixed(0, dummy_supplies, ARRAY_SIZE(dummy_supplies)); omap3_mux_init(board_mux, OMAP_PACKAGE_CBB); - omap_hsmmc_init(mmc); overo_i2c_init(); + omap_hsmmc_init(mmc); omap_display_init(&overo_dss_data); omap_serial_init(); omap_sdrc_init(mt46h32m32lf6_sdrc_params, -- cgit v1.2.3-59-g8ed1b From 5941b8142e9f4d7b8b99562e833067b307b3f390 Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Thu, 28 Jun 2012 10:01:32 -0700 Subject: ARM: OMAP4: TWL6030: ensure sys_nirq1 is mux'd and wakeup enabled The SYS_NIRQ1 pin is the interupt line for the PMIC part of the TWL6030 and interrupts from the PMIC are needed as wakeup sources. Ensure this pin is mux'd as input and has wakeup enabled so PMIC interupts (e.g. RTC) can be used as wakeup sources. Tested on OMAP4430/Panda. Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/twl-common.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-omap2/twl-common.c b/arch/arm/mach-omap2/twl-common.c index 119d5a910f3a..43a979075338 100644 --- a/arch/arm/mach-omap2/twl-common.c +++ b/arch/arm/mach-omap2/twl-common.c @@ -32,6 +32,7 @@ #include "twl-common.h" #include "pm.h" #include "voltage.h" +#include "mux.h" static struct i2c_board_info __initdata pmic_i2c_board_info = { .addr = 0x48, @@ -77,6 +78,7 @@ void __init omap4_pmic_init(const char *pmic_type, struct twl6040_platform_data *twl6040_data, int twl6040_irq) { /* PMIC part*/ + omap_mux_init_signal("sys_nirq1", OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE); strncpy(omap4_i2c1_board_info[0].type, pmic_type, sizeof(omap4_i2c1_board_info[0].type)); omap4_i2c1_board_info[0].irq = OMAP44XX_IRQ_SYS_1N; -- cgit v1.2.3-59-g8ed1b From 76a8349dfdb775d387e9767db3092e410403138a Mon Sep 17 00:00:00 2001 From: David Ahern Date: Thu, 14 Jun 2012 12:36:17 -0600 Subject: perf script: Fix format regression due to libtraceevent merge Consider the commands: perf record -e sched:sched_switch -fo /tmp/perf.data -a -- sleep 1 perf script -i /tmp/perf.data In v3.4 the output has the form (lines wrapped here) perf 29214 [005] 821043.582596: sched_switch: prev_comm=perf prev_pid=29214 prev_prio=120 prev_state=S ==> next_comm=swapper/5 next_pid=0 next_prio=120 In 3.5 that same line has become: perf 29214 [005] 821043.582596: sched_switch: <...>-29214 [005] 0.000000000: sched_switch: prev_comm=perf prev_pid=29214 prev_prio=120 prev_state=S ==> next_comm=swapper/5 next_pid=0 next_prio=120 Note the duplicates in the output -- pid, cpu, event name. With this patch the v3.4 output is restored: perf 29214 [005] 821043.582596: sched_switch: prev_comm=perf prev_pid=29214 prev_prio=120 prev_state=S ==> next_comm=swapper/5 next_pid=0 next_prio=120 v3: Remove that pesky newline too. Output now matches v3.4 (pre-libtracevent). v2: Change print_trace_event function local to perf per Steve's comments. Signed-off-by: David Ahern Acked-by: Steven Rostedt Cc: Frederic Weisbecker Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Steven Rostedt Link: http://lkml.kernel.org/r/1339698977-68962-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/trace-event-parse.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c index df2fddbf0cd2..5dd3b5ec8411 100644 --- a/tools/perf/util/trace-event-parse.c +++ b/tools/perf/util/trace-event-parse.c @@ -198,9 +198,8 @@ void print_trace_event(int cpu, void *data, int size) record.data = data; trace_seq_init(&s); - pevent_print_event(pevent, &s, &record); + pevent_event_info(&s, event, &record); trace_seq_do_printf(&s); - printf("\n"); } void print_event(int cpu, void *data, int size, unsigned long long nsecs, -- cgit v1.2.3-59-g8ed1b From 207b5792696206663a38e525b9793644895bad3b Mon Sep 17 00:00:00 2001 From: David Ahern Date: Sun, 1 Jul 2012 16:11:37 -0600 Subject: perf kvm: Fix regression with guest machine creation Commit 743eb868657bdb1b26c7b24077ca21c67c82c777 reworked when the machines were created. Prior to this commit guest machines could be created in perf_event__process_kernel_mmap() while processing kernel MMAP events. This commit assumes that the machines exist by the time perf_session_deliver_event is called (e.g., during processing of build id events) - which is not always correct. One example is the use of default guest args (--guestkallsyms and --guestmodules) for short times where no samples hit within a guest module. For this case no build id is added to the file header. No build id == no machine created. That leads to the next example -- the use of no-buildid (-B) on the record for all perf-kvm invocations. In both cases perf report dies with a SEGFAULT of the form: (gdb) bt 0 0x000000000046dd7b in machine__mmap_name (self=0x0, bf=0x7fffffffbd20 "q\021", size=4096) at util/map.c:715 1 0x0000000000444161 in perf_event__process_kernel_mmap (tool=0x7fffffffdd80, event=0x7ffff7fb4120, machine=0x0) at util/event.c:562 2 0x0000000000444642 in perf_event__process_mmap (tool=0x7fffffffdd80, event=0x7ffff7fb4120, sample=0x7fffffffd210, machine=0x0) at util/event.c:668 3 0x0000000000470e0b in perf_session_deliver_event (session=0x915ca0, event=0x7ffff7fb4120, sample=0x7fffffffd210, tool=0x7fffffffdd80, file_offset=8480) at util/session.c:979 4 0x000000000047032e in flush_sample_queue (s=0x915ca0, tool=0x7fffffffdd80) at util/session.c:679 5 0x0000000000471c8d in __perf_session__process_events (session=0x915ca0, data_offset=400, data_size=150448, file_size=150848, tool= 0x7fffffffdd80) at util/session.c:1363 6 0x0000000000471d42 in perf_session__process_events (self=0x915ca0, tool=0x7fffffffdd80) at util/session.c:1379 7 0x000000000042484a in __cmd_report (rep=0x7fffffffdd80) at builtin-report.c:368 8 0x0000000000425bf1 in cmd_report (argc=0, argv=0x915b00, prefix=0x0) at builtin-report.c:756 9 0x0000000000438505 in __cmd_report (argc=4, argv=0x7fffffffe260) at builtin-kvm.c:84 10 0x000000000043882a in cmd_kvm (argc=4, argv=0x7fffffffe260, prefix=0x0) at builtin-kvm.c:131 11 0x00000000004152cd in run_builtin (p=0x7a54e8, argc=9, argv=0x7fffffffe260) at perf.c:273 12 0x00000000004154c7 in handle_internal_command (argc=9, argv=0x7fffffffe260) at perf.c:345 13 0x0000000000415613 in run_argv (argcp=0x7fffffffe14c, argv=0x7fffffffe140) at perf.c:389 14 0x0000000000415899 in main (argc=9, argv=0x7fffffffe260) at perf.c:487 Fix by allowing the machine to be created in perf_session_deliver_event. Tested with --guestmount option and default guest args, with and without -B arg on record for both and for short (10 seconds) and long (10 minutes) windows. Reported-by: Pradeep Kumar Surisetty Signed-off-by: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Pradeep Kumar Surisetty Link: http://lkml.kernel.org/r/1341180697-64515-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/session.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index c3e399bcf18d..56142d0fb8d7 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -926,7 +926,7 @@ static struct machine * else pid = event->ip.pid; - return perf_session__find_machine(session, pid); + return perf_session__findnew_machine(session, pid); } return perf_session__find_host_machine(session); -- cgit v1.2.3-59-g8ed1b From 7ed97ad41ffa94040dfd593948962a7e9e7b0db9 Mon Sep 17 00:00:00 2001 From: David Ahern Date: Mon, 2 Jul 2012 09:12:57 -0600 Subject: perf kvm: Fix segfault with report and mixed guestmount use Using the guestmount option on record: $ perf kvm --guest --host --guestmount=/tmp/guest-mount record -ag But not the subsequent report: $ perf kvm report causes a SEGFAULT in the usual place: (gdb) bt 0 0x0000000000470356 in machine__mmap_name (self=0x0, bf=0x7fffffffbdb0 " z\370\367\377\177", size= 4096) at util/map.c:712 1 0x00000000004453e8 in perf_event__process_kernel_mmap (tool=0x7fffffffde10, event=0x7ffff7f87e38, machine=0x0) at util/event.c:550 2 0x00000000004458c9 in perf_event__process_mmap (tool=0x7fffffffde10, event=0x7ffff7f87e38, sample= 0x7fffffffd2a0, machine=0x0) at util/event.c:656 3 0x00000000004733e0 in perf_session_deliver_event (session=0x91aca0, event=0x7ffff7f87e38, sample= 0x7fffffffd2a0, tool=0x7fffffffde10, file_offset=7736) at util/session.c:979 ... The MMAP events in this case already contain the full path to the module. No need to require it for the report path to. Signed-off-by: David Ahern Cc: Frederic Weisbecker Cc: Ingo Molnar Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/1341241977-71535-1-git-send-email-dsahern@gmail.com Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/util/map.c | 29 +++++++++++++++-------------- 1 file changed, 15 insertions(+), 14 deletions(-) diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c index 35ae56864e4f..a1f4e3669142 100644 --- a/tools/perf/util/map.c +++ b/tools/perf/util/map.c @@ -669,25 +669,26 @@ struct machine *machines__find(struct rb_root *self, pid_t pid) struct machine *machines__findnew(struct rb_root *self, pid_t pid) { char path[PATH_MAX]; - const char *root_dir; + const char *root_dir = ""; struct machine *machine = machines__find(self, pid); - if (!machine || machine->pid != pid) { - if (pid == HOST_KERNEL_ID || pid == DEFAULT_GUEST_KERNEL_ID) - root_dir = ""; - else { - if (!symbol_conf.guestmount) - goto out; - sprintf(path, "%s/%d", symbol_conf.guestmount, pid); - if (access(path, R_OK)) { - pr_err("Can't access file %s\n", path); - goto out; - } - root_dir = path; + if (machine && (machine->pid == pid)) + goto out; + + if ((pid != HOST_KERNEL_ID) && + (pid != DEFAULT_GUEST_KERNEL_ID) && + (symbol_conf.guestmount)) { + sprintf(path, "%s/%d", symbol_conf.guestmount, pid); + if (access(path, R_OK)) { + pr_err("Can't access file %s\n", path); + machine = NULL; + goto out; } - machine = machines__add(self, pid, root_dir); + root_dir = path; } + machine = machines__add(self, pid, root_dir); + out: return machine; } -- cgit v1.2.3-59-g8ed1b From cba6d0d64ee53772b285d0c0c288deefbeaf7775 Mon Sep 17 00:00:00 2001 From: "Paul E. McKenney" Date: Mon, 2 Jul 2012 07:08:42 -0700 Subject: Revert "rcu: Move PREEMPT_RCU preemption to switch_to() invocation" This reverts commit 616c310e83b872024271c915c1b9ab505b9efad9. (Move PREEMPT_RCU preemption to switch_to() invocation). Testing by Sasha Levin showed that this can result in deadlock due to invoking the scheduler when one of the runqueue locks is held. Because this commit was simply a performance optimization, revert it. Reported-by: Sasha Levin Signed-off-by: Paul E. McKenney Tested-by: Sasha Levin --- arch/um/drivers/mconsole_kern.c | 1 - include/linux/rcupdate.h | 1 - include/linux/rcutiny.h | 6 ++++++ include/linux/sched.h | 10 ---------- kernel/rcutree.c | 1 + kernel/rcutree.h | 1 + kernel/rcutree_plugin.h | 14 +++++++++++--- kernel/sched/core.c | 1 - 8 files changed, 19 insertions(+), 16 deletions(-) diff --git a/arch/um/drivers/mconsole_kern.c b/arch/um/drivers/mconsole_kern.c index 88e466b159dc..43b39d61b538 100644 --- a/arch/um/drivers/mconsole_kern.c +++ b/arch/um/drivers/mconsole_kern.c @@ -705,7 +705,6 @@ static void stack_proc(void *arg) struct task_struct *from = current, *to = arg; to->thread.saved_task = from; - rcu_switch_from(from); switch_to(from, to, from); } diff --git a/include/linux/rcupdate.h b/include/linux/rcupdate.h index 26d1a47591f1..9cac722b169c 100644 --- a/include/linux/rcupdate.h +++ b/include/linux/rcupdate.h @@ -184,7 +184,6 @@ static inline int rcu_preempt_depth(void) /* Internal to kernel */ extern void rcu_sched_qs(int cpu); extern void rcu_bh_qs(int cpu); -extern void rcu_preempt_note_context_switch(void); extern void rcu_check_callbacks(int cpu, int user); struct notifier_block; extern void rcu_idle_enter(void); diff --git a/include/linux/rcutiny.h b/include/linux/rcutiny.h index 854dc4c5c271..4e56a9c69a35 100644 --- a/include/linux/rcutiny.h +++ b/include/linux/rcutiny.h @@ -87,6 +87,10 @@ static inline void kfree_call_rcu(struct rcu_head *head, #ifdef CONFIG_TINY_RCU +static inline void rcu_preempt_note_context_switch(void) +{ +} + static inline int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies) { *delta_jiffies = ULONG_MAX; @@ -95,6 +99,7 @@ static inline int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies) #else /* #ifdef CONFIG_TINY_RCU */ +void rcu_preempt_note_context_switch(void); int rcu_preempt_needs_cpu(void); static inline int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies) @@ -108,6 +113,7 @@ static inline int rcu_needs_cpu(int cpu, unsigned long *delta_jiffies) static inline void rcu_note_context_switch(int cpu) { rcu_sched_qs(cpu); + rcu_preempt_note_context_switch(); } /* diff --git a/include/linux/sched.h b/include/linux/sched.h index 4059c0f33f07..06a4c5f4f55c 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1871,22 +1871,12 @@ static inline void rcu_copy_process(struct task_struct *p) INIT_LIST_HEAD(&p->rcu_node_entry); } -static inline void rcu_switch_from(struct task_struct *prev) -{ - if (prev->rcu_read_lock_nesting != 0) - rcu_preempt_note_context_switch(); -} - #else static inline void rcu_copy_process(struct task_struct *p) { } -static inline void rcu_switch_from(struct task_struct *prev) -{ -} - #endif #ifdef CONFIG_SMP diff --git a/kernel/rcutree.c b/kernel/rcutree.c index 38ecdda3f55f..4b97bba7396e 100644 --- a/kernel/rcutree.c +++ b/kernel/rcutree.c @@ -201,6 +201,7 @@ void rcu_note_context_switch(int cpu) { trace_rcu_utilization("Start context switch"); rcu_sched_qs(cpu); + rcu_preempt_note_context_switch(cpu); trace_rcu_utilization("End context switch"); } EXPORT_SYMBOL_GPL(rcu_note_context_switch); diff --git a/kernel/rcutree.h b/kernel/rcutree.h index ea056495783e..19b61ac1079f 100644 --- a/kernel/rcutree.h +++ b/kernel/rcutree.h @@ -444,6 +444,7 @@ DECLARE_PER_CPU(char, rcu_cpu_has_work); /* Forward declarations for rcutree_plugin.h */ static void rcu_bootup_announce(void); long rcu_batches_completed(void); +static void rcu_preempt_note_context_switch(int cpu); static int rcu_preempt_blocked_readers_cgp(struct rcu_node *rnp); #ifdef CONFIG_HOTPLUG_CPU static void rcu_report_unblock_qs_rnp(struct rcu_node *rnp, diff --git a/kernel/rcutree_plugin.h b/kernel/rcutree_plugin.h index 5271a020887e..3e4899459f3d 100644 --- a/kernel/rcutree_plugin.h +++ b/kernel/rcutree_plugin.h @@ -153,7 +153,7 @@ static void rcu_preempt_qs(int cpu) * * Caller must disable preemption. */ -void rcu_preempt_note_context_switch(void) +static void rcu_preempt_note_context_switch(int cpu) { struct task_struct *t = current; unsigned long flags; @@ -164,7 +164,7 @@ void rcu_preempt_note_context_switch(void) (t->rcu_read_unlock_special & RCU_READ_UNLOCK_BLOCKED) == 0) { /* Possibly blocking in an RCU read-side critical section. */ - rdp = __this_cpu_ptr(rcu_preempt_state.rda); + rdp = per_cpu_ptr(rcu_preempt_state.rda, cpu); rnp = rdp->mynode; raw_spin_lock_irqsave(&rnp->lock, flags); t->rcu_read_unlock_special |= RCU_READ_UNLOCK_BLOCKED; @@ -228,7 +228,7 @@ void rcu_preempt_note_context_switch(void) * means that we continue to block the current grace period. */ local_irq_save(flags); - rcu_preempt_qs(smp_processor_id()); + rcu_preempt_qs(cpu); local_irq_restore(flags); } @@ -1001,6 +1001,14 @@ void rcu_force_quiescent_state(void) } EXPORT_SYMBOL_GPL(rcu_force_quiescent_state); +/* + * Because preemptible RCU does not exist, we never have to check for + * CPUs being in quiescent states. + */ +static void rcu_preempt_note_context_switch(int cpu) +{ +} + /* * Because preemptible RCU does not exist, there are never any preempted * RCU readers. diff --git a/kernel/sched/core.c b/kernel/sched/core.c index d5594a4268d4..eaead2df6aa8 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2081,7 +2081,6 @@ context_switch(struct rq *rq, struct task_struct *prev, #endif /* Here we just switch the register state and the stack. */ - rcu_switch_from(prev); switch_to(prev, next, prev); barrier(); -- cgit v1.2.3-59-g8ed1b From 597a60fadedf9a40fdff8735054bf772b3dafd57 Mon Sep 17 00:00:00 2001 From: Stefan Behrens Date: Thu, 14 Jun 2012 16:42:31 +0200 Subject: Btrfs: don't count I/O statistic read errors for missing devices It is normal behaviour of the low level btrfs function btrfs_map_bio() to complete a bio with -EIO if the device is missing, instead of just preventing the bio creation in an earlier step. This used to cause I/O statistic read error increments and annoying printk_ratelimited messages. This commit fixes the issue. Signed-off-by: Stefan Behrens Reported-by: Carey Underwood --- fs/btrfs/volumes.c | 22 ++++++++++++---------- 1 file changed, 12 insertions(+), 10 deletions(-) diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 8a3d2594b807..3f292cf693a7 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -4061,16 +4061,18 @@ static void btrfs_end_bio(struct bio *bio, int err) BUG_ON(stripe_index >= bbio->num_stripes); dev = bbio->stripes[stripe_index].dev; - if (bio->bi_rw & WRITE) - btrfs_dev_stat_inc(dev, - BTRFS_DEV_STAT_WRITE_ERRS); - else - btrfs_dev_stat_inc(dev, - BTRFS_DEV_STAT_READ_ERRS); - if ((bio->bi_rw & WRITE_FLUSH) == WRITE_FLUSH) - btrfs_dev_stat_inc(dev, - BTRFS_DEV_STAT_FLUSH_ERRS); - btrfs_dev_stat_print_on_error(dev); + if (dev->bdev) { + if (bio->bi_rw & WRITE) + btrfs_dev_stat_inc(dev, + BTRFS_DEV_STAT_WRITE_ERRS); + else + btrfs_dev_stat_inc(dev, + BTRFS_DEV_STAT_READ_ERRS); + if ((bio->bi_rw & WRITE_FLUSH) == WRITE_FLUSH) + btrfs_dev_stat_inc(dev, + BTRFS_DEV_STAT_FLUSH_ERRS); + btrfs_dev_stat_print_on_error(dev); + } } } -- cgit v1.2.3-59-g8ed1b From c3473e830074ef04f974f2829690942dd8580619 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Tue, 19 Jun 2012 10:59:00 -0400 Subject: Btrfs: fix dio write vs buffered read race Miao pointed out there's a problem with mixing dio writes and buffered reads. If the read happens between us invalidating the page range and actually locking the extent we can bring in pages into page cache. Then once the write finishes if somebody tries to read again it will just find uptodate pages and we'll read stale data. So we need to lock the extent and check for uptodate bits in the range. If there are uptodate bits we need to unlock and invalidate again. This will keep this race from happening since we will hold the extent locked until we create the ordered extent, and then teh read side always waits for ordered extents. There was also a race in how we updated i_size, previously we were relying on the generic DIO stuff to adjust the i_size after the DIO had completed, but this happens outside of the extent lock which means reads could come in and not see the updated i_size. So instead move this work into where we create the extents, and then this way the update ordered i_size stuff works properly in the endio handlers. Thanks, Signed-off-by: Josef Bacik --- fs/btrfs/file.c | 13 ------------- fs/btrfs/inode.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++++++----- 2 files changed, 50 insertions(+), 18 deletions(-) diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c index 876cddd6b2f0..248d20265249 100644 --- a/fs/btrfs/file.c +++ b/fs/btrfs/file.c @@ -1334,7 +1334,6 @@ static ssize_t __btrfs_direct_write(struct kiocb *iocb, loff_t *ppos, size_t count, size_t ocount) { struct file *file = iocb->ki_filp; - struct inode *inode = fdentry(file)->d_inode; struct iov_iter i; ssize_t written; ssize_t written_buffered; @@ -1344,18 +1343,6 @@ static ssize_t __btrfs_direct_write(struct kiocb *iocb, written = generic_file_direct_write(iocb, iov, &nr_segs, pos, ppos, count, ocount); - /* - * the generic O_DIRECT will update in-memory i_size after the - * DIOs are done. But our endio handlers that update the on - * disk i_size never update past the in memory i_size. So we - * need one more update here to catch any additions to the - * file - */ - if (inode->i_size != BTRFS_I(inode)->disk_i_size) { - btrfs_ordered_update_i_size(inode, inode->i_size, NULL); - mark_inode_dirty(inode); - } - if (written < 0 || written == count) return written; diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 4a4f2d59a64b..6971fb5fc859 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -5904,8 +5904,17 @@ map: bh_result->b_size = len; bh_result->b_bdev = em->bdev; set_buffer_mapped(bh_result); - if (create && !test_bit(EXTENT_FLAG_PREALLOC, &em->flags)) - set_buffer_new(bh_result); + if (create) { + if (!test_bit(EXTENT_FLAG_PREALLOC, &em->flags)) + set_buffer_new(bh_result); + + /* + * Need to update the i_size under the extent lock so buffered + * readers will get the updated i_size when we unlock. + */ + if (start + len > i_size_read(inode)) + i_size_write(inode, start + len); + } free_extent_map(em); @@ -6388,12 +6397,48 @@ static ssize_t btrfs_direct_IO(int rw, struct kiocb *iocb, */ ordered = btrfs_lookup_ordered_range(inode, lockstart, lockend - lockstart + 1); - if (!ordered) + + /* + * We need to make sure there are no buffered pages in this + * range either, we could have raced between the invalidate in + * generic_file_direct_write and locking the extent. The + * invalidate needs to happen so that reads after a write do not + * get stale data. + */ + if (!ordered && (!writing || + !test_range_bit(&BTRFS_I(inode)->io_tree, + lockstart, lockend, EXTENT_UPTODATE, 0, + cached_state))) break; + unlock_extent_cached(&BTRFS_I(inode)->io_tree, lockstart, lockend, &cached_state, GFP_NOFS); - btrfs_start_ordered_extent(inode, ordered, 1); - btrfs_put_ordered_extent(ordered); + + if (ordered) { + btrfs_start_ordered_extent(inode, ordered, 1); + btrfs_put_ordered_extent(ordered); + } else { + /* Screw you mmap */ + ret = filemap_write_and_wait_range(file->f_mapping, + lockstart, + lockend); + if (ret) + goto out; + + /* + * If we found a page that couldn't be invalidated just + * fall back to buffered. + */ + ret = invalidate_inode_pages2_range(file->f_mapping, + lockstart >> PAGE_CACHE_SHIFT, + lockend >> PAGE_CACHE_SHIFT); + if (ret) { + if (ret == -EBUSY) + ret = 0; + goto out; + } + } + cond_resched(); } -- cgit v1.2.3-59-g8ed1b From 68310a5e42f93c2242ec1836c3b18d531e0065e2 Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Fri, 22 Jun 2012 12:24:12 -0600 Subject: Btrfs: restore restriper state on all mounts Fix a bug that triggered asserts in btrfs_balance() in both normal and resume modes -- restriper state was not properly restored on read-only mounts. This factors out resuming code from btrfs_restore_balance(), which is now also called earlier in the mount sequence to avoid the problem of some early writes getting the old profile. Signed-off-by: Ilya Dryomov --- fs/btrfs/disk-io.c | 10 ++++++---- fs/btrfs/volumes.c | 39 +++++++++++++++++++-------------------- fs/btrfs/volumes.h | 2 +- 3 files changed, 26 insertions(+), 25 deletions(-) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 7d7bc8eace86..3a7961ba161e 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2354,12 +2354,17 @@ retry_root_backup: BTRFS_CSUM_TREE_OBJECTID, csum_root); if (ret) goto recovery_tree_root; - csum_root->track_dirty = 1; fs_info->generation = generation; fs_info->last_trans_committed = generation; + ret = btrfs_recover_balance(fs_info); + if (ret) { + printk(KERN_WARNING "btrfs: failed to recover balance\n"); + goto fail_block_groups; + } + ret = btrfs_init_dev_stats(fs_info); if (ret) { printk(KERN_ERR "btrfs: failed to init dev_stats: %d\n", @@ -2492,9 +2497,6 @@ retry_root_backup: err = btrfs_orphan_cleanup(fs_info->tree_root); up_read(&fs_info->cleanup_work_sem); - if (!err) - err = btrfs_recover_balance(fs_info->tree_root); - if (err) { close_ctree(tree_root); return err; diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 3f292cf693a7..48943d0f861a 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2867,9 +2867,8 @@ static int balance_kthread(void *data) return ret; } -int btrfs_recover_balance(struct btrfs_root *tree_root) +int btrfs_recover_balance(struct btrfs_fs_info *fs_info) { - struct task_struct *tsk; struct btrfs_balance_control *bctl; struct btrfs_balance_item *item; struct btrfs_disk_balance_args disk_bargs; @@ -2882,29 +2881,30 @@ int btrfs_recover_balance(struct btrfs_root *tree_root) if (!path) return -ENOMEM; - bctl = kzalloc(sizeof(*bctl), GFP_NOFS); - if (!bctl) { - ret = -ENOMEM; - goto out; - } - key.objectid = BTRFS_BALANCE_OBJECTID; key.type = BTRFS_BALANCE_ITEM_KEY; key.offset = 0; - ret = btrfs_search_slot(NULL, tree_root, &key, path, 0, 0); + ret = btrfs_search_slot(NULL, fs_info->tree_root, &key, path, 0, 0); if (ret < 0) - goto out_bctl; + goto out; if (ret > 0) { /* ret = -ENOENT; */ ret = 0; - goto out_bctl; + goto out; + } + + bctl = kzalloc(sizeof(*bctl), GFP_NOFS); + if (!bctl) { + ret = -ENOMEM; + goto out; } leaf = path->nodes[0]; item = btrfs_item_ptr(leaf, path->slots[0], struct btrfs_balance_item); - bctl->fs_info = tree_root->fs_info; - bctl->flags = btrfs_balance_flags(leaf, item) | BTRFS_BALANCE_RESUME; + bctl->fs_info = fs_info; + bctl->flags = btrfs_balance_flags(leaf, item); + bctl->flags |= BTRFS_BALANCE_RESUME; btrfs_balance_data(leaf, item, &disk_bargs); btrfs_disk_balance_args_to_cpu(&bctl->data, &disk_bargs); @@ -2913,14 +2913,13 @@ int btrfs_recover_balance(struct btrfs_root *tree_root) btrfs_balance_sys(leaf, item, &disk_bargs); btrfs_disk_balance_args_to_cpu(&bctl->sys, &disk_bargs); - tsk = kthread_run(balance_kthread, bctl, "btrfs-balance"); - if (IS_ERR(tsk)) - ret = PTR_ERR(tsk); - else - goto out; + mutex_lock(&fs_info->volume_mutex); + mutex_lock(&fs_info->balance_mutex); -out_bctl: - kfree(bctl); + set_balance_control(bctl); + + mutex_unlock(&fs_info->balance_mutex); + mutex_unlock(&fs_info->volume_mutex); out: btrfs_free_path(path); return ret; diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index 74366f27a76b..e1b1a649fc5a 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -281,7 +281,7 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size); int btrfs_init_new_device(struct btrfs_root *root, char *path); int btrfs_balance(struct btrfs_balance_control *bctl, struct btrfs_ioctl_balance_args *bargs); -int btrfs_recover_balance(struct btrfs_root *tree_root); +int btrfs_recover_balance(struct btrfs_fs_info *fs_info); int btrfs_pause_balance(struct btrfs_fs_info *fs_info); int btrfs_cancel_balance(struct btrfs_fs_info *fs_info); int btrfs_chunk_readonly(struct btrfs_root *root, u64 chunk_offset); -- cgit v1.2.3-59-g8ed1b From 2b6ba629b5aac51e7099efbb43e2b403213aa7fb Mon Sep 17 00:00:00 2001 From: Ilya Dryomov Date: Fri, 22 Jun 2012 12:24:13 -0600 Subject: Btrfs: resume balance on rw (re)mounts properly This introduces btrfs_resume_balance_async(), which, given that restriper state was recovered earlier by btrfs_recover_balance(), resumes balance in btrfs-balance kthread. Signed-off-by: Ilya Dryomov --- fs/btrfs/disk-io.c | 24 +++++++++++++++--------- fs/btrfs/super.c | 4 ++++ fs/btrfs/volumes.c | 36 +++++++++++++++++++++++++++--------- fs/btrfs/volumes.h | 1 + 4 files changed, 47 insertions(+), 18 deletions(-) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 3a7961ba161e..8cc47103a32e 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -2490,17 +2490,23 @@ retry_root_backup: goto fail_trans_kthread; } - if (!(sb->s_flags & MS_RDONLY)) { - down_read(&fs_info->cleanup_work_sem); - err = btrfs_orphan_cleanup(fs_info->fs_root); - if (!err) - err = btrfs_orphan_cleanup(fs_info->tree_root); + if (sb->s_flags & MS_RDONLY) + return 0; + + down_read(&fs_info->cleanup_work_sem); + if ((ret = btrfs_orphan_cleanup(fs_info->fs_root)) || + (ret = btrfs_orphan_cleanup(fs_info->tree_root))) { up_read(&fs_info->cleanup_work_sem); + close_ctree(tree_root); + return ret; + } + up_read(&fs_info->cleanup_work_sem); - if (err) { - close_ctree(tree_root); - return err; - } + ret = btrfs_resume_balance_async(fs_info); + if (ret) { + printk(KERN_WARNING "btrfs: failed to resume balance\n"); + close_ctree(tree_root); + return ret; } return 0; diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 0eb9a4da069e..e23991574fdf 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -1187,6 +1187,10 @@ static int btrfs_remount(struct super_block *sb, int *flags, char *data) if (ret) goto restore; + ret = btrfs_resume_balance_async(fs_info); + if (ret) + goto restore; + sb->s_flags &= ~MS_RDONLY; } diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index 48943d0f861a..ecaad40e7ef4 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -2845,28 +2845,46 @@ out: static int balance_kthread(void *data) { - struct btrfs_balance_control *bctl = - (struct btrfs_balance_control *)data; - struct btrfs_fs_info *fs_info = bctl->fs_info; + struct btrfs_fs_info *fs_info = data; int ret = 0; mutex_lock(&fs_info->volume_mutex); mutex_lock(&fs_info->balance_mutex); - set_balance_control(bctl); - - if (btrfs_test_opt(fs_info->tree_root, SKIP_BALANCE)) { - printk(KERN_INFO "btrfs: force skipping balance\n"); - } else { + if (fs_info->balance_ctl) { printk(KERN_INFO "btrfs: continuing balance\n"); - ret = btrfs_balance(bctl, NULL); + ret = btrfs_balance(fs_info->balance_ctl, NULL); } mutex_unlock(&fs_info->balance_mutex); mutex_unlock(&fs_info->volume_mutex); + return ret; } +int btrfs_resume_balance_async(struct btrfs_fs_info *fs_info) +{ + struct task_struct *tsk; + + spin_lock(&fs_info->balance_lock); + if (!fs_info->balance_ctl) { + spin_unlock(&fs_info->balance_lock); + return 0; + } + spin_unlock(&fs_info->balance_lock); + + if (btrfs_test_opt(fs_info->tree_root, SKIP_BALANCE)) { + printk(KERN_INFO "btrfs: force skipping balance\n"); + return 0; + } + + tsk = kthread_run(balance_kthread, fs_info, "btrfs-balance"); + if (IS_ERR(tsk)) + return PTR_ERR(tsk); + + return 0; +} + int btrfs_recover_balance(struct btrfs_fs_info *fs_info) { struct btrfs_balance_control *bctl; diff --git a/fs/btrfs/volumes.h b/fs/btrfs/volumes.h index e1b1a649fc5a..95f6637614db 100644 --- a/fs/btrfs/volumes.h +++ b/fs/btrfs/volumes.h @@ -281,6 +281,7 @@ int btrfs_shrink_device(struct btrfs_device *device, u64 new_size); int btrfs_init_new_device(struct btrfs_root *root, char *path); int btrfs_balance(struct btrfs_balance_control *bctl, struct btrfs_ioctl_balance_args *bargs); +int btrfs_resume_balance_async(struct btrfs_fs_info *fs_info); int btrfs_recover_balance(struct btrfs_fs_info *fs_info); int btrfs_pause_balance(struct btrfs_fs_info *fs_info); int btrfs_cancel_balance(struct btrfs_fs_info *fs_info); -- cgit v1.2.3-59-g8ed1b From d3a94048c912e18e99a091d5ea2d0a1178152d6f Mon Sep 17 00:00:00 2001 From: Alexander Block Date: Mon, 25 Jun 2012 15:36:12 -0600 Subject: Btrfs: use _IOR for BTRFS_IOC_SUBVOL_GETFLAGS We used the wrong ioctl macro for the getflags ioctl before. As we don't have the set/getflags ioctls in the user space ioctl.h at the moment, it's safe to fix it now. Reviewed-by: David Sterba Signed-off-by: Alexander Block --- fs/btrfs/ioctl.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/ioctl.h b/fs/btrfs/ioctl.h index 497c530724cf..e440aa653c30 100644 --- a/fs/btrfs/ioctl.h +++ b/fs/btrfs/ioctl.h @@ -339,7 +339,7 @@ struct btrfs_ioctl_get_dev_stats { #define BTRFS_IOC_WAIT_SYNC _IOW(BTRFS_IOCTL_MAGIC, 22, __u64) #define BTRFS_IOC_SNAP_CREATE_V2 _IOW(BTRFS_IOCTL_MAGIC, 23, \ struct btrfs_ioctl_vol_args_v2) -#define BTRFS_IOC_SUBVOL_GETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 25, __u64) +#define BTRFS_IOC_SUBVOL_GETFLAGS _IOR(BTRFS_IOCTL_MAGIC, 25, __u64) #define BTRFS_IOC_SUBVOL_SETFLAGS _IOW(BTRFS_IOCTL_MAGIC, 26, __u64) #define BTRFS_IOC_SCRUB _IOWR(BTRFS_IOCTL_MAGIC, 27, \ struct btrfs_ioctl_scrub_args) -- cgit v1.2.3-59-g8ed1b From 6bf02314d9a5c29f6ec30285b9ad5361c2d4c85a Mon Sep 17 00:00:00 2001 From: Liu Bo Date: Mon, 25 Jun 2012 21:59:09 -0600 Subject: Btrfs: fix wrong check during log recovery When we're evicting an inode during log recovery, we need to ensure that the inode is not in orphan state any more, which means inode's run_time flags has _no_ BTRFS_INODE_HAS_ORPHAN_ITEM. Thus, the BUG_ON was triggered because of a wrong check for the flags. Reviewed-by: David Sterba Signed-off-by: Liu Bo Signed-off-by: Josef Bacik --- fs/btrfs/inode.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 6971fb5fc859..9f07bd121f66 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -3754,7 +3754,7 @@ void btrfs_evict_inode(struct inode *inode) btrfs_wait_ordered_range(inode, 0, (u64)-1); if (root->fs_info->log_root_recovering) { - BUG_ON(!test_bit(BTRFS_INODE_HAS_ORPHAN_ITEM, + BUG_ON(test_bit(BTRFS_INODE_HAS_ORPHAN_ITEM, &BTRFS_I(inode)->runtime_flags)); goto no_delete; } -- cgit v1.2.3-59-g8ed1b From bdb7d303b33c1648514c9f9461d7513a4c05ce48 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 27 Jun 2012 15:10:56 -0400 Subject: Btrfs: fix tree log remove space corner case The tree log stuff can have allocated space that we end up having split across a bitmap and a real extent. The free space code does not deal with this, it assumes that if it finds an extent or bitmap entry that the entire range must fall within the entry it finds. This isn't necessarily the case, so rework the remove function so it can handle this case properly. This fixed two panics the user hit, first in the case where the space was initially in a bitmap and then in an extent entry, and then the reverse case. Thanks, Reported-and-tested-by: Shaun Reich Signed-off-by: Josef Bacik --- fs/btrfs/free-space-cache.c | 145 ++++++++++++++++---------------------------- 1 file changed, 52 insertions(+), 93 deletions(-) diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c index 19a0d85b451c..a70c54e2e1be 100644 --- a/fs/btrfs/free-space-cache.c +++ b/fs/btrfs/free-space-cache.c @@ -1542,29 +1542,26 @@ again: end = bitmap_info->offset + (u64)(BITS_PER_BITMAP * ctl->unit) - 1; /* - * XXX - this can go away after a few releases. - * - * since the only user of btrfs_remove_free_space is the tree logging - * stuff, and the only way to test that is under crash conditions, we - * want to have this debug stuff here just in case somethings not - * working. Search the bitmap for the space we are trying to use to - * make sure its actually there. If its not there then we need to stop - * because something has gone wrong. + * We need to search for bits in this bitmap. We could only cover some + * of the extent in this bitmap thanks to how we add space, so we need + * to search for as much as it as we can and clear that amount, and then + * go searching for the next bit. */ search_start = *offset; - search_bytes = *bytes; + search_bytes = ctl->unit; search_bytes = min(search_bytes, end - search_start + 1); ret = search_bitmap(ctl, bitmap_info, &search_start, &search_bytes); BUG_ON(ret < 0 || search_start != *offset); - if (*offset > bitmap_info->offset && *offset + *bytes > end) { - bitmap_clear_bits(ctl, bitmap_info, *offset, end - *offset + 1); - *bytes -= end - *offset + 1; - *offset = end + 1; - } else if (*offset >= bitmap_info->offset && *offset + *bytes <= end) { - bitmap_clear_bits(ctl, bitmap_info, *offset, *bytes); - *bytes = 0; - } + /* We may have found more bits than what we need */ + search_bytes = min(search_bytes, *bytes); + + /* Cannot clear past the end of the bitmap */ + search_bytes = min(search_bytes, end - search_start + 1); + + bitmap_clear_bits(ctl, bitmap_info, search_start, search_bytes); + *offset += search_bytes; + *bytes -= search_bytes; if (*bytes) { struct rb_node *next = rb_next(&bitmap_info->offset_index); @@ -1595,7 +1592,7 @@ again: * everything over again. */ search_start = *offset; - search_bytes = *bytes; + search_bytes = ctl->unit; ret = search_bitmap(ctl, bitmap_info, &search_start, &search_bytes); if (ret < 0 || search_start != *offset) @@ -1878,12 +1875,14 @@ int btrfs_remove_free_space(struct btrfs_block_group_cache *block_group, { struct btrfs_free_space_ctl *ctl = block_group->free_space_ctl; struct btrfs_free_space *info; - struct btrfs_free_space *next_info = NULL; int ret = 0; spin_lock(&ctl->tree_lock); again: + if (!bytes) + goto out_lock; + info = tree_search_offset(ctl, offset, 0, 0); if (!info) { /* @@ -1904,88 +1903,48 @@ again: } } - if (info->bytes < bytes && rb_next(&info->offset_index)) { - u64 end; - next_info = rb_entry(rb_next(&info->offset_index), - struct btrfs_free_space, - offset_index); - - if (next_info->bitmap) - end = next_info->offset + - BITS_PER_BITMAP * ctl->unit - 1; - else - end = next_info->offset + next_info->bytes; - - if (next_info->bytes < bytes || - next_info->offset > offset || offset > end) { - printk(KERN_CRIT "Found free space at %llu, size %llu," - " trying to use %llu\n", - (unsigned long long)info->offset, - (unsigned long long)info->bytes, - (unsigned long long)bytes); - WARN_ON(1); - ret = -EINVAL; - goto out_lock; - } - - info = next_info; - } - - if (info->bytes == bytes) { + if (!info->bitmap) { unlink_free_space(ctl, info); - if (info->bitmap) { - kfree(info->bitmap); - ctl->total_bitmaps--; - } - kmem_cache_free(btrfs_free_space_cachep, info); - ret = 0; - goto out_lock; - } - - if (!info->bitmap && info->offset == offset) { - unlink_free_space(ctl, info); - info->offset += bytes; - info->bytes -= bytes; - ret = link_free_space(ctl, info); - WARN_ON(ret); - goto out_lock; - } + if (offset == info->offset) { + u64 to_free = min(bytes, info->bytes); + + info->bytes -= to_free; + info->offset += to_free; + if (info->bytes) { + ret = link_free_space(ctl, info); + WARN_ON(ret); + } else { + kmem_cache_free(btrfs_free_space_cachep, info); + } - if (!info->bitmap && info->offset <= offset && - info->offset + info->bytes >= offset + bytes) { - u64 old_start = info->offset; - /* - * we're freeing space in the middle of the info, - * this can happen during tree log replay - * - * first unlink the old info and then - * insert it again after the hole we're creating - */ - unlink_free_space(ctl, info); - if (offset + bytes < info->offset + info->bytes) { - u64 old_end = info->offset + info->bytes; + offset += to_free; + bytes -= to_free; + goto again; + } else { + u64 old_end = info->bytes + info->offset; - info->offset = offset + bytes; - info->bytes = old_end - info->offset; + info->bytes = offset - info->offset; ret = link_free_space(ctl, info); WARN_ON(ret); if (ret) goto out_lock; - } else { - /* the hole we're creating ends at the end - * of the info struct, just free the info - */ - kmem_cache_free(btrfs_free_space_cachep, info); - } - spin_unlock(&ctl->tree_lock); - /* step two, insert a new info struct to cover - * anything before the hole - */ - ret = btrfs_add_free_space(block_group, old_start, - offset - old_start); - WARN_ON(ret); /* -ENOMEM */ - goto out; + /* Not enough bytes in this entry to satisfy us */ + if (old_end < offset + bytes) { + bytes -= old_end - offset; + offset = old_end; + goto again; + } else if (old_end == offset + bytes) { + /* all done */ + goto out_lock; + } + spin_unlock(&ctl->tree_lock); + + ret = btrfs_add_free_space(block_group, offset + bytes, + old_end - (offset + bytes)); + WARN_ON(ret); + goto out; + } } ret = remove_from_bitmap(ctl, info, &offset, &bytes); -- cgit v1.2.3-59-g8ed1b From 7fd1a3f73f3743b4ffd520effe288a70b0ec47c9 Mon Sep 17 00:00:00 2001 From: Josef Bacik Date: Wed, 27 Jun 2012 17:18:41 -0400 Subject: Btrfs: hold a ref on the inode during writepages We can race with unlink and not actually be able to do our igrab in btrfs_add_ordered_extent. This will result in all sorts of problems. Instead of doing the complicated work to try and handle returning an error properly from btrfs_add_ordered_extent, just hold a ref to the inode during writepages. If we cannot grab a ref we know we're freeing this inode anyway and can just drop the dirty pages on the floor, because screw them we're going to invalidate them anyway. Thanks, Signed-off-by: Josef Bacik --- fs/btrfs/extent_io.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/fs/btrfs/extent_io.c b/fs/btrfs/extent_io.c index aaa12c1eb348..01c21b6c6d43 100644 --- a/fs/btrfs/extent_io.c +++ b/fs/btrfs/extent_io.c @@ -3324,6 +3324,7 @@ static int extent_write_cache_pages(struct extent_io_tree *tree, writepage_t writepage, void *data, void (*flush_fn)(void *)) { + struct inode *inode = mapping->host; int ret = 0; int done = 0; int nr_to_write_done = 0; @@ -3334,6 +3335,18 @@ static int extent_write_cache_pages(struct extent_io_tree *tree, int scanned = 0; int tag; + /* + * We have to hold onto the inode so that ordered extents can do their + * work when the IO finishes. The alternative to this is failing to add + * an ordered extent if the igrab() fails there and that is a huge pain + * to deal with, so instead just hold onto the inode throughout the + * writepages operation. If it fails here we are freeing up the inode + * anyway and we'd rather not waste our time writing out stuff that is + * going to be truncated anyway. + */ + if (!igrab(inode)) + return 0; + pagevec_init(&pvec, 0); if (wbc->range_cyclic) { index = mapping->writeback_index; /* Start from prev offset */ @@ -3428,6 +3441,7 @@ retry: index = 0; goto retry; } + btrfs_add_delayed_iput(inode); return ret; } -- cgit v1.2.3-59-g8ed1b From b6305567e7d31b0bec1b8cb9ec0cadd7f7086f5f Mon Sep 17 00:00:00 2001 From: Chris Mason Date: Mon, 2 Jul 2012 15:29:53 -0400 Subject: Btrfs: run delayed directory updates during log replay While we are resolving directory modifications in the tree log, we are triggering delayed metadata updates to the filesystem btrees. This commit forces the delayed updates to run so the replay code can find any modifications done. It stops us from crashing because the directory deleltion replay expects items to be removed immediately from the tree. Signed-off-by: Chris Mason cc: stable@kernel.org --- fs/btrfs/tree-log.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/fs/btrfs/tree-log.c b/fs/btrfs/tree-log.c index 2017d0ff511c..8abeae4224f9 100644 --- a/fs/btrfs/tree-log.c +++ b/fs/btrfs/tree-log.c @@ -690,6 +690,8 @@ static noinline int drop_one_dir_item(struct btrfs_trans_handle *trans, kfree(name); iput(inode); + + btrfs_run_delayed_items(trans, root); return ret; } @@ -895,6 +897,7 @@ again: ret = btrfs_unlink_inode(trans, root, dir, inode, victim_name, victim_name_len); + btrfs_run_delayed_items(trans, root); } kfree(victim_name); ptr = (unsigned long)(victim_ref + 1) + victim_name_len; @@ -1475,6 +1478,9 @@ again: ret = btrfs_unlink_inode(trans, root, dir, inode, name, name_len); BUG_ON(ret); + + btrfs_run_delayed_items(trans, root); + kfree(name); iput(inode); -- cgit v1.2.3-59-g8ed1b From 8bea2bd37df08aaa599aa361a9f8b836ba98e554 Mon Sep 17 00:00:00 2001 From: Stanislaw Ledwon Date: Mon, 18 Jun 2012 15:20:00 +0200 Subject: usb: Add support for root hub port status CAS The host controller port status register supports CAS (Cold Attach Status) bit. This bit could be set when USB3.0 device is connected when system is in Sx state. When the system wakes to S0 this port status with CAS bit is reported and this port can't be used by any device. When CAS bit is set the port should be reset by warm reset. This was not supported by xhci driver. The issue was found when pendrive was connected to suspended platform. The link state of "Compliance Mode" was reported together with CAS bit. This link state was also not supported by xhci and core/hub.c. The CAS bit is defined only for xhci root hub port and it is not supported on regular hubs. The link status is used to force warm reset on port. Make the USB core issue a warm reset when port is in ether the 'inactive' or 'compliance mode'. Change the xHCI driver to report 'compliance mode' when the CAS is set. This force warm reset on the root hub port. This patch should be backported to stable kernels as old as 3.2, that contain the commit 10d674a82e553cb8a1f41027bb3c3e309b3f6804 "USB: When hot reset for USB3 fails, try warm reset." Signed-off-by: Stanislaw Ledwon Signed-off-by: Sarah Sharp Acked-by: Andiry Xu Cc: stable@vger.kernel.org --- drivers/usb/core/hub.c | 18 ++++++++++-------- drivers/usb/host/xhci-hub.c | 44 ++++++++++++++++++++++++++++++++++++++------ drivers/usb/host/xhci.h | 6 +++++- 3 files changed, 53 insertions(+), 15 deletions(-) diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c index 25a7422ee657..8fb484984c86 100644 --- a/drivers/usb/core/hub.c +++ b/drivers/usb/core/hub.c @@ -2324,12 +2324,16 @@ static unsigned hub_is_wusb(struct usb_hub *hub) static int hub_port_reset(struct usb_hub *hub, int port1, struct usb_device *udev, unsigned int delay, bool warm); -/* Is a USB 3.0 port in the Inactive state? */ -static bool hub_port_inactive(struct usb_hub *hub, u16 portstatus) +/* Is a USB 3.0 port in the Inactive or Complinance Mode state? + * Port worm reset is required to recover + */ +static bool hub_port_warm_reset_required(struct usb_hub *hub, u16 portstatus) { return hub_is_superspeed(hub->hdev) && - (portstatus & USB_PORT_STAT_LINK_STATE) == - USB_SS_PORT_LS_SS_INACTIVE; + (((portstatus & USB_PORT_STAT_LINK_STATE) == + USB_SS_PORT_LS_SS_INACTIVE) || + ((portstatus & USB_PORT_STAT_LINK_STATE) == + USB_SS_PORT_LS_COMP_MOD)) ; } static int hub_port_wait_reset(struct usb_hub *hub, int port1, @@ -2365,7 +2369,7 @@ static int hub_port_wait_reset(struct usb_hub *hub, int port1, * * See https://bugzilla.kernel.org/show_bug.cgi?id=41752 */ - if (hub_port_inactive(hub, portstatus)) { + if (hub_port_warm_reset_required(hub, portstatus)) { int ret; if ((portchange & USB_PORT_STAT_C_CONNECTION)) @@ -4408,9 +4412,7 @@ static void hub_events(void) /* Warm reset a USB3 protocol port if it's in * SS.Inactive state. */ - if (hub_is_superspeed(hub->hdev) && - (portstatus & USB_PORT_STAT_LINK_STATE) - == USB_SS_PORT_LS_SS_INACTIVE) { + if (hub_port_warm_reset_required(hub, portstatus)) { dev_dbg(hub_dev, "warm reset port %d\n", i); hub_port_reset(hub, i, NULL, HUB_BH_RESET_TIME, true); diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c index 2732ef660c5c..7b01094d7993 100644 --- a/drivers/usb/host/xhci-hub.c +++ b/drivers/usb/host/xhci-hub.c @@ -462,6 +462,42 @@ void xhci_test_and_clear_bit(struct xhci_hcd *xhci, __le32 __iomem **port_array, } } +/* Updates Link Status for super Speed port */ +static void xhci_hub_report_link_state(u32 *status, u32 status_reg) +{ + u32 pls = status_reg & PORT_PLS_MASK; + + /* resume state is a xHCI internal state. + * Do not report it to usb core. + */ + if (pls == XDEV_RESUME) + return; + + /* When the CAS bit is set then warm reset + * should be performed on port + */ + if (status_reg & PORT_CAS) { + /* The CAS bit can be set while the port is + * in any link state. + * Only roothubs have CAS bit, so we + * pretend to be in compliance mode + * unless we're already in compliance + * or the inactive state. + */ + if (pls != USB_SS_PORT_LS_COMP_MOD && + pls != USB_SS_PORT_LS_SS_INACTIVE) { + pls = USB_SS_PORT_LS_COMP_MOD; + } + /* Return also connection bit - + * hub state machine resets port + * when this bit is set. + */ + pls |= USB_PORT_STAT_CONNECTION; + } + /* update status field */ + *status |= pls; +} + int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, u16 wIndex, char *buf, u16 wLength) { @@ -606,13 +642,9 @@ int xhci_hub_control(struct usb_hcd *hcd, u16 typeReq, u16 wValue, else status |= USB_PORT_STAT_POWER; } - /* Port Link State */ + /* Update Port Link State for super speed ports*/ if (hcd->speed == HCD_USB3) { - /* resume state is a xHCI internal state. - * Do not report it to usb core. - */ - if ((temp & PORT_PLS_MASK) != XDEV_RESUME) - status |= (temp & PORT_PLS_MASK); + xhci_hub_report_link_state(&status, temp); } if (bus_state->port_c_suspend & (1 << wIndex)) status |= 1 << USB_PORT_FEAT_C_SUSPEND; diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index de3d6e3e57be..55c0785810c9 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -341,7 +341,11 @@ struct xhci_op_regs { #define PORT_PLC (1 << 22) /* port configure error change - port failed to configure its link partner */ #define PORT_CEC (1 << 23) -/* bit 24 reserved */ +/* Cold Attach Status - xHC can set this bit to report device attached during + * Sx state. Warm port reset should be perfomed to clear this bit and move port + * to connected state. + */ +#define PORT_CAS (1 << 24) /* wake on connect (enable) */ #define PORT_WKCONN_E (1 << 25) /* wake on disconnect (enable) */ -- cgit v1.2.3-59-g8ed1b From 0d9f78a92ef5e97d9fe51d9215ebe22f6f0d289d Mon Sep 17 00:00:00 2001 From: Sarah Sharp Date: Thu, 21 Jun 2012 16:28:30 -0700 Subject: xhci: Fix hang on back-to-back Set TR Deq Ptr commands. The Microsoft LifeChat 3000 USB headset was causing a very reproducible hang whenever it was plugged in. At first, I thought the host controller was producing bad transfer events, because the log was filled with errors like: xhci_hcd 0000:00:14.0: ERROR Transfer event TRB DMA ptr not part of current TD However, it turned out to be an xHCI driver bug in the ring expansion patches. The bug is triggered When there are two ring segments, and a TD that ends just before a link TRB, like so: ______________ _____________ | | ---> | setup TRB B | ______________ | _____________ | | | | data TRB B | ______________ | _____________ | setup TRB A | <-- deq | | data TRB B | ______________ | _____________ | data TRB A | | | | <-- enq, deq'' ______________ | _____________ | status TRB A | | | | ______________ | _____________ | link TRB |--------------- | link TRB | _____________ <--- deq' _____________ TD A (the first control transfer) stalls on the data phase. That halts the ring. The xHCI driver moves the hardware dequeue pointer to the first TRB after the stalled transfer, which happens to be the link TRB. Once the Set TR dequeue pointer command completes, the function update_ring_for_set_deq_completion runs. That function is supposed to update the xHCI driver's dequeue pointer to match the internal hardware dequeue pointer. On the first call this would work fine, and the software dequeue pointer would move to deq'. However, if the transfer immediately after that stalled (TD B in this case), another Set TR Dequeue command would be issued. That would move the hardware dequeue pointer to deq''. Once that command completed, update_ring_for_set_deq_completion would run again. The original code would unconditionally increment the software dequeue pointer, which moved the pointer off the ring segment into la-la-land. The while loop would happy increment the dequeue pointer (possibly wrapping it) until it matched the hardware pointer value. The while loop would also access all the memory in between the first ring segment and the second ring segment to determine if it was a link TRB. This could cause general protection faults, although it was unlikely because the ring segments came from a DMA pool, and would often have consecutive memory addresses. If nothing in that space looked like a link TRB, the deq_seg pointer for the ring would remain on the first segment. Thus, the deq_seg and the software dequeue pointer would get out of sync. When the next transfer event came in after the stalled transfer, the xHCI driver code would attempt to convert the software dequeue pointer into a DMA address in order to compare the DMA address for the completed transfer. Since the deq_seg and the dequeue pointer were out of sync, xhci_trb_virt_to_dma would return NULL. The transfer event would get ignored, the transfer would eventually timeout, and we would mistakenly convert the finished transfer to no-op TRBs. Some kernel driver (maybe xHCI?) would then get stuck in an infinite loop in interrupt context, and the whole machine would hang. This patch should be backported to kernels as old as 3.4, that contain the commit b008df60c6369ba0290fa7daa177375407a12e07 "xHCI: count free TRBs on transfer ring" Signed-off-by: Sarah Sharp Cc: Andiry Xu Cc: stable@vger.kernel.org --- drivers/usb/host/xhci-ring.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c index 23b4aefd1036..8275645889da 100644 --- a/drivers/usb/host/xhci-ring.c +++ b/drivers/usb/host/xhci-ring.c @@ -885,6 +885,17 @@ static void update_ring_for_set_deq_completion(struct xhci_hcd *xhci, num_trbs_free_temp = ep_ring->num_trbs_free; dequeue_temp = ep_ring->dequeue; + /* If we get two back-to-back stalls, and the first stalled transfer + * ends just before a link TRB, the dequeue pointer will be left on + * the link TRB by the code in the while loop. So we have to update + * the dequeue pointer one segment further, or we'll jump off + * the segment into la-la-land. + */ + if (last_trb(xhci, ep_ring, ep_ring->deq_seg, ep_ring->dequeue)) { + ep_ring->deq_seg = ep_ring->deq_seg->next; + ep_ring->dequeue = ep_ring->deq_seg->trbs; + } + while (ep_ring->dequeue != dev->eps[ep_index].queued_deq_ptr) { /* We have more usable TRBs */ ep_ring->num_trbs_free++; -- cgit v1.2.3-59-g8ed1b From d4db2935e4fffeba42540b0dc9d85e3036701221 Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Fri, 29 Jun 2012 09:56:08 -0600 Subject: KVM: Pass kvm_irqfd to functions Prune this down to just the struct kvm_irqfd so we can avoid changing function definition for every flag or field we use. Signed-off-by: Alex Williamson Acked-by: Cornelia Huck Signed-off-by: Marcelo Tosatti --- include/linux/kvm_host.h | 4 ++-- virt/kvm/eventfd.c | 20 ++++++++++---------- virt/kvm/kvm_main.c | 2 +- 3 files changed, 13 insertions(+), 13 deletions(-) diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index c4464356b35b..96c158a37d3e 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -815,7 +815,7 @@ static inline void kvm_free_irq_routing(struct kvm *kvm) {} #ifdef CONFIG_HAVE_KVM_EVENTFD void kvm_eventfd_init(struct kvm *kvm); -int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags); +int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args); void kvm_irqfd_release(struct kvm *kvm); void kvm_irq_routing_update(struct kvm *, struct kvm_irq_routing_table *); int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); @@ -824,7 +824,7 @@ int kvm_ioeventfd(struct kvm *kvm, struct kvm_ioeventfd *args); static inline void kvm_eventfd_init(struct kvm *kvm) {} -static inline int kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags) +static inline int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args) { return -EINVAL; } diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index f59c1e8de7a2..c307c24c147a 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c @@ -198,7 +198,7 @@ static void irqfd_update(struct kvm *kvm, struct _irqfd *irqfd, } static int -kvm_irqfd_assign(struct kvm *kvm, int fd, int gsi) +kvm_irqfd_assign(struct kvm *kvm, struct kvm_irqfd *args) { struct kvm_irq_routing_table *irq_rt; struct _irqfd *irqfd, *tmp; @@ -212,12 +212,12 @@ kvm_irqfd_assign(struct kvm *kvm, int fd, int gsi) return -ENOMEM; irqfd->kvm = kvm; - irqfd->gsi = gsi; + irqfd->gsi = args->gsi; INIT_LIST_HEAD(&irqfd->list); INIT_WORK(&irqfd->inject, irqfd_inject); INIT_WORK(&irqfd->shutdown, irqfd_shutdown); - file = eventfd_fget(fd); + file = eventfd_fget(args->fd); if (IS_ERR(file)) { ret = PTR_ERR(file); goto fail; @@ -298,19 +298,19 @@ kvm_eventfd_init(struct kvm *kvm) * shutdown any irqfd's that match fd+gsi */ static int -kvm_irqfd_deassign(struct kvm *kvm, int fd, int gsi) +kvm_irqfd_deassign(struct kvm *kvm, struct kvm_irqfd *args) { struct _irqfd *irqfd, *tmp; struct eventfd_ctx *eventfd; - eventfd = eventfd_ctx_fdget(fd); + eventfd = eventfd_ctx_fdget(args->fd); if (IS_ERR(eventfd)) return PTR_ERR(eventfd); spin_lock_irq(&kvm->irqfds.lock); list_for_each_entry_safe(irqfd, tmp, &kvm->irqfds.items, list) { - if (irqfd->eventfd == eventfd && irqfd->gsi == gsi) { + if (irqfd->eventfd == eventfd && irqfd->gsi == args->gsi) { /* * This rcu_assign_pointer is needed for when * another thread calls kvm_irq_routing_update before @@ -338,12 +338,12 @@ kvm_irqfd_deassign(struct kvm *kvm, int fd, int gsi) } int -kvm_irqfd(struct kvm *kvm, int fd, int gsi, int flags) +kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args) { - if (flags & KVM_IRQFD_FLAG_DEASSIGN) - return kvm_irqfd_deassign(kvm, fd, gsi); + if (args->flags & KVM_IRQFD_FLAG_DEASSIGN) + return kvm_irqfd_deassign(kvm, args); - return kvm_irqfd_assign(kvm, fd, gsi); + return kvm_irqfd_assign(kvm, args); } /* diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 7e140683ff14..e98a5cac55c4 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2047,7 +2047,7 @@ static long kvm_vm_ioctl(struct file *filp, r = -EFAULT; if (copy_from_user(&data, argp, sizeof data)) goto out; - r = kvm_irqfd(kvm, data.fd, data.gsi, data.flags); + r = kvm_irqfd(kvm, &data); break; } case KVM_IOEVENTFD: { -- cgit v1.2.3-59-g8ed1b From f36992e31284131a978d07bb14e582ce67b46b64 Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Fri, 29 Jun 2012 09:56:16 -0600 Subject: KVM: Add missing KVM_IRQFD API documentation Signed-off-by: Alex Williamson Acked-by: Michael S. Tsirkin Signed-off-by: Marcelo Tosatti --- Documentation/virtual/kvm/api.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index 930126698a0f..2c9948379469 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -1930,6 +1930,23 @@ The "pte_enc" field provides a value that can OR'ed into the hash PTE's RPN field (ie, it needs to be shifted left by 12 to OR it into the hash PTE second double word). +4.75 KVM_IRQFD + +Capability: KVM_CAP_IRQFD +Architectures: x86 +Type: vm ioctl +Parameters: struct kvm_irqfd (in) +Returns: 0 on success, -1 on error + +Allows setting an eventfd to directly trigger a guest interrupt. +kvm_irqfd.fd specifies the file descriptor to use as the eventfd and +kvm_irqfd.gsi specifies the irqchip pin toggled by this event. When +an event is tiggered on the eventfd, an interrupt is injected into +the guest using the specified gsi pin. The irqfd is removed using +the KVM_IRQFD_FLAG_DEASSIGN flag, specifying both kvm_irqfd.fd +and kvm_irqfd.gsi. + + 5. The kvm_run structure ------------------------ -- cgit v1.2.3-59-g8ed1b From 326cf0334bacfdf43039cf75997a022b9e51535d Mon Sep 17 00:00:00 2001 From: Alex Williamson Date: Fri, 29 Jun 2012 09:56:24 -0600 Subject: KVM: Sanitize KVM_IRQFD flags We only know of one so far. Signed-off-by: Alex Williamson Signed-off-by: Marcelo Tosatti --- virt/kvm/eventfd.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/virt/kvm/eventfd.c b/virt/kvm/eventfd.c index c307c24c147a..7d7e2aaffece 100644 --- a/virt/kvm/eventfd.c +++ b/virt/kvm/eventfd.c @@ -340,6 +340,9 @@ kvm_irqfd_deassign(struct kvm *kvm, struct kvm_irqfd *args) int kvm_irqfd(struct kvm *kvm, struct kvm_irqfd *args) { + if (args->flags & ~KVM_IRQFD_FLAG_DEASSIGN) + return -EINVAL; + if (args->flags & KVM_IRQFD_FLAG_DEASSIGN) return kvm_irqfd_deassign(kvm, args); -- cgit v1.2.3-59-g8ed1b From fc448a18ae6219af9a73257b1fbcd009efab4a81 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 10:37:30 +1000 Subject: md/raid10: Don't try to recovery unmatched (and unused) chunks. If a RAID10 has an odd number of chunks - as might happen when there are an odd number of devices - the last chunk has no pair and so is not mirrored. We don't store data there, but when recovering the last device in an array we retry to recover that last chunk from a non-existent location. This results in an error, and the recovery aborts. When we get to that last chunk we should just stop - there is nothing more to do anyway. This bug has been present since the introduction of RAID10, so the patch is appropriate for any -stable kernel. Cc: stable@vger.kernel.org Reported-by: Christian Balzer Tested-by: Christian Balzer Signed-off-by: NeilBrown --- drivers/md/raid10.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index 99ae6068e456..bcf6ea8acc9f 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2890,6 +2890,12 @@ static sector_t sync_request(struct mddev *mddev, sector_t sector_nr, /* want to reconstruct this device */ rb2 = r10_bio; sect = raid10_find_virt(conf, sector_nr, i); + if (sect >= mddev->resync_max_sectors) { + /* last stripe is not complete - don't + * try to recover this sector. + */ + continue; + } /* Unless we are doing a full sync, or a replacement * we only need to recover the block if it is set in * the bitmap -- cgit v1.2.3-59-g8ed1b From 5cfb22a1f83e4f04c0a4df89b60053a077222e2b Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 11:46:53 +1000 Subject: md/raid5: prefer replacing failed devices over want-replacement devices. If a RAID5 has both a failed device and a device marked as 'WantReplacement', then we should preferentially replace the failed device. However the current code replaces whichever is found first. So split into 2 loops, check fail failed/missing first, and only check for WantReplacement if nothing is failed or missing. Reported-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/raid5.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index d26767246d26..95fcbbf3d6c9 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -5465,10 +5465,9 @@ static int raid5_add_disk(struct mddev *mddev, struct md_rdev *rdev) if (rdev->saved_raid_disk >= 0 && rdev->saved_raid_disk >= first && conf->disks[rdev->saved_raid_disk].rdev == NULL) - disk = rdev->saved_raid_disk; - else - disk = first; - for ( ; disk <= last ; disk++) { + first = rdev->saved_raid_disk; + + for (disk = first; disk <= last; disk++) { p = conf->disks + disk; if (p->rdev == NULL) { clear_bit(In_sync, &rdev->flags); @@ -5477,8 +5476,11 @@ static int raid5_add_disk(struct mddev *mddev, struct md_rdev *rdev) if (rdev->saved_raid_disk != disk) conf->fullsync = 1; rcu_assign_pointer(p->rdev, rdev); - break; + goto out; } + } + for (disk = first; disk <= last; disk++) { + p = conf->disks + disk; if (test_bit(WantReplacement, &p->rdev->flags) && p->replacement == NULL) { clear_bit(In_sync, &rdev->flags); @@ -5490,6 +5492,7 @@ static int raid5_add_disk(struct mddev *mddev, struct md_rdev *rdev) break; } } +out: print_raid5_conf(conf); return err; } -- cgit v1.2.3-59-g8ed1b From 6c0544e255dd6582a9899572e120fb55d9f672a4 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Tue, 12 Jun 2012 08:31:10 +0800 Subject: md/raid5: Do not add data_offset before call to is_badblock In chunk_aligned_read() we are adding data_offset before calling is_badblock. But is_badblock also adds data_offset, so that is bad. So move the addition of data_offset to after the call to is_badblock. This bug was introduced by commit 31c176ecdf3563140e639 md/raid5: avoid reading from known bad blocks. which first appeared in 3.0. So that patch is suitable for any -stable kernel from 3.0.y onwards. However it will need minor revision for most of those (as the comment didn't appear until recently). Cc: stable@vger.kernel.org Signed-off-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/raid5.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 95fcbbf3d6c9..9567a9c83a1f 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3881,8 +3881,6 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio) raid_bio->bi_next = (void*)rdev; align_bi->bi_bdev = rdev->bdev; align_bi->bi_flags &= ~(1 << BIO_SEG_VALID); - /* No reshape active, so we can trust rdev->data_offset */ - align_bi->bi_sector += rdev->data_offset; if (!bio_fits_rdev(align_bi) || is_badblock(rdev, align_bi->bi_sector, align_bi->bi_size>>9, @@ -3893,6 +3891,9 @@ static int chunk_aligned_read(struct mddev *mddev, struct bio * raid_bio) return 0; } + /* No reshape active, so we can trust rdev->data_offset */ + align_bi->bi_sector += rdev->data_offset; + spin_lock_irq(&conf->device_lock); wait_event_lock_irq(conf->wait_for_stripe, conf->quiesce == 0, -- cgit v1.2.3-59-g8ed1b From 1850753d2e6d9ca7856581ca5d3cf09521e6a5d7 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Tue, 3 Jul 2012 12:11:54 +1000 Subject: md/raid5: In ops_run_io, inc nr_pending before calling md_wait_for_blocked_rdev In ops_run_io(), the call to md_wait_for_blocked_rdev will decrement nr_pending so we lose the reference we hold on the rdev. So atomic_inc it first to maintain the reference. This bug was introduced by commit 73e92e51b7969ef5477d md/raid5. Don't write to known bad block on doubtful devices. which appeared in 3.0, so patch is suitable for stable kernels since then. Cc: stable@vger.kernel.org Signed-off-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/raid5.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 9567a9c83a1f..befadb41a11f 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -606,6 +606,12 @@ static void ops_run_io(struct stripe_head *sh, struct stripe_head_state *s) * a chance*/ md_check_recovery(conf->mddev); } + /* + * Because md_wait_for_blocked_rdev + * will dec nr_pending, we must + * increment it first. + */ + atomic_inc(&rdev->nr_pending); md_wait_for_blocked_rdev(rdev, conf->mddev); } else { /* Acknowledged bad block - skip the write */ -- cgit v1.2.3-59-g8ed1b From 7c2c57c9a98bf5961e438a376486f95346f6b0c5 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Tue, 3 Jul 2012 12:12:26 +1000 Subject: md:Add blk_plug in sync_thread. Add blk_plug in sync_thread will increase the performance of sync. Because sync_thread did not blk_plug,so when raid sync, the bio merge not well. Testing environment: SATA controller: Intel Corporation 82801JI (ICH10 Family) SATA AHCI Controller. OS:Linux xxx 3.5.0-rc2+ #340 SMP Tue Jun 12 09:00:25 CST 2012 x86_64 x86_64 x86_64 GNU/Linux. RAID5: four ST31000524NS disk. Without blk_plug:recovery speed about 63M/Sec; Add blk_plug:recovery speed about 120M/Sec. Using blktrace: blktrace -d /dev/sdb -w 60 -o -|blkparse -i - without blk_plug: Total (8,16): Reads Queued: 309811, 1239MiB Writes Queued: 0, 0KiB Read Dispatches: 283583, 1189MiB Write Dispatches: 0, 0KiB Reads Requeued: 0 Writes Requeued: 0 Reads Completed: 273351, 1149MiB Writes Completed: 0, 0KiB Read Merges: 23533, 94132KiB Write Merges: 0, 0KiB IO unplugs: 0 Timer unplugs: 0 add blk_plug: Total (8,16): Reads Queued: 428697, 1714MiB Writes Queued: 0, 0KiB Read Dispatches: 3954, 1714MiB Write Dispatches: 0, 0KiB Reads Requeued: 0 Writes Requeued: 0 Reads Completed: 3956, 1715MiB Writes Completed: 0, 0KiB Read Merges: 424743, 1698MiB Write Merges: 0, 0KiB IO unplugs: 0 Timer unplugs: 3384 The ratio of merge will be markedly increased. Signed-off-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/md.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/md/md.c b/drivers/md/md.c index 1c2f9048e1ae..973aa8459e98 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -7298,6 +7298,7 @@ void md_do_sync(struct mddev *mddev) int skipped = 0; struct md_rdev *rdev; char *desc; + struct blk_plug plug; /* just incase thread restarts... */ if (test_bit(MD_RECOVERY_DONE, &mddev->recovery)) @@ -7447,6 +7448,7 @@ void md_do_sync(struct mddev *mddev) } mddev->curr_resync_completed = j; + blk_start_plug(&plug); while (j < max_sectors) { sector_t sectors; @@ -7552,6 +7554,7 @@ void md_do_sync(struct mddev *mddev) * this also signals 'finished resyncing' to md_stop */ out: + blk_finish_plug(&plug); wait_event(mddev->recovery_wait, !atomic_read(&mddev->recovery_active)); /* tell personality that we are finished */ -- cgit v1.2.3-59-g8ed1b From 5f066c632fcfd2a33f2eb7077c15c630e9f5ea5b Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 12:13:29 +1000 Subject: md/raid5: fix refcount problem when blocked_rdev is set. commit 43220aa0f22cd3ce5b30246d50ccd696d119edea md/raid5: fix a hang on device failure. fixed a hang, but introduced a refcounting in-balance so that if the presence of bad-blocks ever caused an rdev to be 'blocked' we would increment the refcount on the rdev and never decrement it. So added the needed rdev_dec_pending when md_wait_for_blocked_rdev is not called. Reported-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/raid5.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index befadb41a11f..62b6b3a83abf 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3588,8 +3588,18 @@ static void handle_stripe(struct stripe_head *sh) finish: /* wait for this device to become unblocked */ - if (conf->mddev->external && unlikely(s.blocked_rdev)) - md_wait_for_blocked_rdev(s.blocked_rdev, conf->mddev); + if (unlikely(s.blocked_rdev)) { + if (conf->mddev->external) + md_wait_for_blocked_rdev(s.blocked_rdev, + conf->mddev); + else + /* Internal metadata will immediately + * be written by raid5d, so we don't + * need to wait here. + */ + rdev_dec_pending(s.blocked_rdev, + conf->mddev); + } if (s.handle_bad_blocks) for (i = disks; i--; ) { -- cgit v1.2.3-59-g8ed1b From 09b243577be319ef55310b45c65737008f3ebf12 Mon Sep 17 00:00:00 2001 From: Andy Lutomirski Date: Mon, 2 Jul 2012 14:03:58 -0700 Subject: security: document no_new_privs Document no_new_privs. Signed-off-by: Andy Lutomirski Acked-by: Kees Cook Signed-off-by: James Morris --- Documentation/prctl/no_new_privs.txt | 50 ++++++++++++++++++++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 Documentation/prctl/no_new_privs.txt diff --git a/Documentation/prctl/no_new_privs.txt b/Documentation/prctl/no_new_privs.txt new file mode 100644 index 000000000000..cb705ec69abe --- /dev/null +++ b/Documentation/prctl/no_new_privs.txt @@ -0,0 +1,50 @@ +The execve system call can grant a newly-started program privileges that +its parent did not have. The most obvious examples are setuid/setgid +programs and file capabilities. To prevent the parent program from +gaining these privileges as well, the kernel and user code must be +careful to prevent the parent from doing anything that could subvert the +child. For example: + + - The dynamic loader handles LD_* environment variables differently if + a program is setuid. + + - chroot is disallowed to unprivileged processes, since it would allow + /etc/passwd to be replaced from the point of view of a process that + inherited chroot. + + - The exec code has special handling for ptrace. + +These are all ad-hoc fixes. The no_new_privs bit (since Linux 3.5) is a +new, generic mechanism to make it safe for a process to modify its +execution environment in a manner that persists across execve. Any task +can set no_new_privs. Once the bit is set, it is inherited across fork, +clone, and execve and cannot be unset. With no_new_privs set, execve +promises not to grant the privilege to do anything that could not have +been done without the execve call. For example, the setuid and setgid +bits will no longer change the uid or gid; file capabilities will not +add to the permitted set, and LSMs will not relax constraints after +execve. + +Note that no_new_privs does not prevent privilege changes that do not +involve execve. An appropriately privileged task can still call +setuid(2) and receive SCM_RIGHTS datagrams. + +There are two main use cases for no_new_privs so far: + + - Filters installed for the seccomp mode 2 sandbox persist across + execve and can change the behavior of newly-executed programs. + Unprivileged users are therefore only allowed to install such filters + if no_new_privs is set. + + - By itself, no_new_privs can be used to reduce the attack surface + available to an unprivileged user. If everything running with a + given uid has no_new_privs set, then that uid will be unable to + escalate its privileges by directly attacking setuid, setgid, and + fcap-using binaries; it will need to compromise something without the + no_new_privs bit set first. + +In the future, other potentially dangerous kernel features could become +available to unprivileged tasks if no_new_privs is set. In principle, +several options to unshare(2) and clone(2) would be safe when +no_new_privs is set, and no_new_privs + chroot is considerable less +dangerous than chroot by itself. -- cgit v1.2.3-59-g8ed1b From 055d3747dbf00ce85c6872ecca4d466638e80c22 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 15:55:33 +1000 Subject: md/raid10: fix failure when trying to repair a read error. commit 58c54fcca3bac5bf9290cfed31c76e4c4bfbabaf md/raid10: handle further errors during fix_read_error better. in 3.1 added "r10_sync_page_io" which takes an IO size in sectors. But we were passing the IO size in bytes!!! This resulting in bio_add_page failing, and empty request being sent down, and a consequent BUG_ON in scsi_lib. [fix missing space in error message at same time] This fix is suitable for 3.1.y and later. Cc: stable@vger.kernel.org Reported-by: Christian Balzer Signed-off-by: NeilBrown --- drivers/md/raid10.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index bcf6ea8acc9f..ae73e29298b2 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -2310,7 +2310,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10 if (r10_sync_page_io(rdev, r10_bio->devs[sl].addr + sect, - s<<9, conf->tmppage, WRITE) + s, conf->tmppage, WRITE) == 0) { /* Well, this device is dead */ printk(KERN_NOTICE @@ -2349,7 +2349,7 @@ static void fix_read_error(struct r10conf *conf, struct mddev *mddev, struct r10 switch (r10_sync_page_io(rdev, r10_bio->devs[sl].addr + sect, - s<<9, conf->tmppage, + s, conf->tmppage, READ)) { case 0: /* Well, this device is dead */ @@ -2512,7 +2512,7 @@ read_more: slot = r10_bio->read_slot; printk_ratelimited( KERN_ERR - "md/raid10:%s: %s: redirecting" + "md/raid10:%s: %s: redirecting " "sector %llu to another mirror\n", mdname(mddev), bdevname(rdev->bdev, b), -- cgit v1.2.3-59-g8ed1b From 0232605d987d8230b254aa139805bbb56a7ca30c Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 15:56:52 +1000 Subject: md: make 'name' arg to md_register_thread non-optional. Having the 'name' arg optional and defaulting to the current personality name is no necessary and leads to errors, as when changing the level of an array we can end up using the name of the old level instead of the new one. So make it non-optional and always explicitly pass the name of the level that the array will be. Reported-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/md.c | 2 +- drivers/md/multipath.c | 3 ++- drivers/md/raid1.c | 2 +- drivers/md/raid10.c | 2 +- drivers/md/raid5.c | 4 +++- 5 files changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index 973aa8459e98..c601c4be77c7 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -6751,7 +6751,7 @@ struct md_thread *md_register_thread(void (*run) (struct mddev *), struct mddev thread->tsk = kthread_run(md_thread, thread, "%s_%s", mdname(thread->mddev), - name ?: mddev->pers->name); + name); if (IS_ERR(thread->tsk)) { kfree(thread); return NULL; diff --git a/drivers/md/multipath.c b/drivers/md/multipath.c index 9339e67fcc79..61a1833ebaf3 100644 --- a/drivers/md/multipath.c +++ b/drivers/md/multipath.c @@ -474,7 +474,8 @@ static int multipath_run (struct mddev *mddev) } { - mddev->thread = md_register_thread(multipathd, mddev, NULL); + mddev->thread = md_register_thread(multipathd, mddev, + "multipath"); if (!mddev->thread) { printk(KERN_ERR "multipath: couldn't allocate thread" " for %s\n", mdname(mddev)); diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index a9c7981ddd24..39b2a8aa3b23 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -2621,7 +2621,7 @@ static struct r1conf *setup_conf(struct mddev *mddev) goto abort; } err = -ENOMEM; - conf->thread = md_register_thread(raid1d, mddev, NULL); + conf->thread = md_register_thread(raid1d, mddev, "raid1"); if (!conf->thread) { printk(KERN_ERR "md/raid1:%s: couldn't allocate thread\n", diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index ae73e29298b2..edc1088a1320 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -3427,7 +3427,7 @@ static struct r10conf *setup_conf(struct mddev *mddev) spin_lock_init(&conf->resync_lock); init_waitqueue_head(&conf->wait_barrier); - conf->thread = md_register_thread(raid10d, mddev, NULL); + conf->thread = md_register_thread(raid10d, mddev, "raid10"); if (!conf->thread) goto out; diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 62b6b3a83abf..a5135e595866 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -4840,6 +4840,7 @@ static struct r5conf *setup_conf(struct mddev *mddev) int raid_disk, memory, max_disks; struct md_rdev *rdev; struct disk_info *disk; + char pers_name[6]; if (mddev->new_level != 5 && mddev->new_level != 4 @@ -4963,7 +4964,8 @@ static struct r5conf *setup_conf(struct mddev *mddev) printk(KERN_INFO "md/raid:%s: allocated %dkB\n", mdname(mddev), memory); - conf->thread = md_register_thread(raid5d, mddev, NULL); + sprintf(pers_name, "raid%d", mddev->new_level); + conf->thread = md_register_thread(raid5d, mddev, pers_name); if (!conf->thread) { printk(KERN_ERR "md/raid:%s: couldn't allocate thread.\n", -- cgit v1.2.3-59-g8ed1b From 2e8ac30312973dd20e6807365349ecb1c7e0ea45 Mon Sep 17 00:00:00 2001 From: majianpeng Date: Tue, 3 Jul 2012 15:57:02 +1000 Subject: md/raid456: When read error cannot be recovered, record bad block We may not be able to fix a bad block if: - the array is degraded - the over-write fails. In these cases we currently eject the device, but we should record a bad block if possible. Signed-off-by: majianpeng Signed-off-by: NeilBrown --- drivers/md/raid5.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index a5135e595866..51169ecd7787 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -1743,6 +1743,7 @@ static void raid5_end_read_request(struct bio * bi, int error) } else { const char *bdn = bdevname(rdev->bdev, b); int retry = 0; + int set_bad = 0; clear_bit(R5_UPTODATE, &sh->dev[i].flags); atomic_inc(&rdev->read_errors); @@ -1754,7 +1755,8 @@ static void raid5_end_read_request(struct bio * bi, int error) mdname(conf->mddev), (unsigned long long)s, bdn); - else if (conf->mddev->degraded >= conf->max_degraded) + else if (conf->mddev->degraded >= conf->max_degraded) { + set_bad = 1; printk_ratelimited( KERN_WARNING "md/raid:%s: read error not correctable " @@ -1762,8 +1764,9 @@ static void raid5_end_read_request(struct bio * bi, int error) mdname(conf->mddev), (unsigned long long)s, bdn); - else if (test_bit(R5_ReWrite, &sh->dev[i].flags)) + } else if (test_bit(R5_ReWrite, &sh->dev[i].flags)) { /* Oh, no!!! */ + set_bad = 1; printk_ratelimited( KERN_WARNING "md/raid:%s: read error NOT corrected!! " @@ -1771,7 +1774,7 @@ static void raid5_end_read_request(struct bio * bi, int error) mdname(conf->mddev), (unsigned long long)s, bdn); - else if (atomic_read(&rdev->read_errors) + } else if (atomic_read(&rdev->read_errors) > conf->max_nr_stripes) printk(KERN_WARNING "md/raid:%s: Too many read errors, failing device %s.\n", @@ -1783,7 +1786,11 @@ static void raid5_end_read_request(struct bio * bi, int error) else { clear_bit(R5_ReadError, &sh->dev[i].flags); clear_bit(R5_ReWrite, &sh->dev[i].flags); - md_error(conf->mddev, rdev); + if (!(set_bad + && test_bit(In_sync, &rdev->flags) + && rdev_set_badblocks( + rdev, sh->sector, STRIPE_SECTORS, 0))) + md_error(conf->mddev, rdev); } } rdev_dec_pending(rdev, conf->mddev); -- cgit v1.2.3-59-g8ed1b From fab363b5ff502d1b39ddcfec04271f5858d9f26e Mon Sep 17 00:00:00 2001 From: Shaohua Li Date: Tue, 3 Jul 2012 15:57:19 +1000 Subject: raid5: delayed stripe fix There isn't locking setting STRIPE_DELAYED and STRIPE_PREREAD_ACTIVE bits, but the two bits have relationship. A delayed stripe can be moved to hold list only when preread active stripe count is below IO_THRESHOLD. If a stripe has both the bits set, such stripe will be in delayed list and preread count not 0, which will make such stripe never leave delayed list. Signed-off-by: Shaohua Li Signed-off-by: NeilBrown --- drivers/md/raid5.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 51169ecd7787..7245a9df35a9 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -196,12 +196,14 @@ static void __release_stripe(struct r5conf *conf, struct stripe_head *sh) BUG_ON(!list_empty(&sh->lru)); BUG_ON(atomic_read(&conf->active_stripes)==0); if (test_bit(STRIPE_HANDLE, &sh->state)) { - if (test_bit(STRIPE_DELAYED, &sh->state)) + if (test_bit(STRIPE_DELAYED, &sh->state) && + !test_bit(STRIPE_PREREAD_ACTIVE, &sh->state)) list_add_tail(&sh->lru, &conf->delayed_list); else if (test_bit(STRIPE_BIT_DELAY, &sh->state) && sh->bm_seq - conf->seq_write > 0) list_add_tail(&sh->lru, &conf->bitmap_list); else { + clear_bit(STRIPE_DELAYED, &sh->state); clear_bit(STRIPE_BIT_DELAY, &sh->state); list_add_tail(&sh->lru, &conf->handle_list); } -- cgit v1.2.3-59-g8ed1b From 32644afd8975d19174bcb9ba34687c32dd810a09 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 15:58:42 +1000 Subject: md/raid1: fix bug in read_balance introduced by hot-replace When we added hot_replace we doubled the number of devices that could be in a RAID1 array. So we doubled how far read_balance would search. Unfortunately we didn't double the point at which it looped back to the beginning - so it effectively loops over all non-replacement disks twice. This doesn't cause bad behaviour, but it pointless and means we never read from replacement devices. Signed-off-by: NeilBrown --- drivers/md/raid1.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 39b2a8aa3b23..34b4665cb0b6 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -517,8 +517,8 @@ static int read_balance(struct r1conf *conf, struct r1bio *r1_bio, int *max_sect int bad_sectors; int disk = start_disk + i; - if (disk >= conf->raid_disks) - disk -= conf->raid_disks; + if (disk >= conf->raid_disks * 2) + disk -= conf->raid_disks * 2; rdev = rcu_dereference(conf->mirrors[disk].rdev); if (r1_bio->bios[disk] == IO_BLOCKED -- cgit v1.2.3-59-g8ed1b From f456309106e9657645c81bce1a6bb3230393564e Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 15:59:06 +1000 Subject: md: support re-add of recovering devices. We currently only allow a device to be re-added if it appear to be in-sync. This is overly restrictive as it may be desirable to re-add a device that is in the middle of recovery. So remove the test for "InSync" - the test on rdev->raid_disk is sufficient to ensure that the re-add will succeed. Reported-by: Alexander Lyakas Tested-by: Alexander Lyakas Signed-off-by: NeilBrown --- drivers/md/md.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/md/md.c b/drivers/md/md.c index c601c4be77c7..a4c219e3c859 100644 --- a/drivers/md/md.c +++ b/drivers/md/md.c @@ -5784,8 +5784,7 @@ static int add_new_disk(struct mddev * mddev, mdu_disk_info_t *info) super_types[mddev->major_version]. validate_super(mddev, rdev); if ((info->state & (1<flags) || - rdev->raid_disk != info->raid_disk)) { + rdev->raid_disk != info->raid_disk) { /* This was a hot-add request, but events doesn't * match, so reject it. */ -- cgit v1.2.3-59-g8ed1b From b357f04a67c2aeee828b240863cd3f21d6cb3179 Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Tue, 3 Jul 2012 17:45:31 +1000 Subject: md: fix up plugging (again). The value returned by "mddev_check_plug" is only valid until the next 'schedule' as that will unplug things. This could happen at any call to mempool_alloc. So just calling mddev_check_plug at the start doesn't really make sense. So call it just before, or just after, queuing things for the thread. As the action that happens at unplug is to wake the thread, this makes lots of sense. If we cannot add a plug (which requires a small GFP_ATOMIC alloc) we wake thread immediately. RAID5 is a bit different. Requests are queued for the thread and the thread is woken by release_stripe. So we don't need to wake the thread on failure. However the thread doesn't perform certain actions when there is any active plug, so it is important to install a plug before waking the thread. So for RAID5 we install the plug *before* queuing the request and waking the thread. Without this patch it is possible for raid1 or raid10 to queue a request without then waking the thread, resulting in the array locking up. Also change raid10 to only flush_pending_write when there are not active plugs, just like raid1. This patch is suitable for 3.0 or later. I plan to submit it to -stable, but I'll like to let it spend a few weeks in mainline first to be sure it is completely safe. Signed-off-by: NeilBrown --- drivers/md/raid1.c | 7 ++----- drivers/md/raid10.c | 12 ++++++------ drivers/md/raid5.c | 6 +----- 3 files changed, 9 insertions(+), 16 deletions(-) diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c index 34b4665cb0b6..8c2754f835ef 100644 --- a/drivers/md/raid1.c +++ b/drivers/md/raid1.c @@ -883,7 +883,6 @@ static void make_request(struct mddev *mddev, struct bio * bio) const unsigned long do_sync = (bio->bi_rw & REQ_SYNC); const unsigned long do_flush_fua = (bio->bi_rw & (REQ_FLUSH | REQ_FUA)); struct md_rdev *blocked_rdev; - int plugged; int first_clone; int sectors_handled; int max_sectors; @@ -1034,7 +1033,6 @@ read_again: * the bad blocks. Each set of writes gets it's own r1bio * with a set of bios attached. */ - plugged = mddev_check_plugged(mddev); disks = conf->raid_disks * 2; retry_write: @@ -1191,6 +1189,8 @@ read_again: bio_list_add(&conf->pending_bio_list, mbio); conf->pending_count++; spin_unlock_irqrestore(&conf->device_lock, flags); + if (!mddev_check_plugged(mddev)) + md_wakeup_thread(mddev->thread); } /* Mustn't call r1_bio_write_done before this next test, * as it could result in the bio being freed. @@ -1213,9 +1213,6 @@ read_again: /* In case raid1d snuck in to freeze_array */ wake_up(&conf->wait_barrier); - - if (do_sync || !bitmap || !plugged) - md_wakeup_thread(mddev->thread); } static void status(struct seq_file *seq, struct mddev *mddev) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index edc1088a1320..acf5a828c7e1 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1039,7 +1039,6 @@ static void make_request(struct mddev *mddev, struct bio * bio) const unsigned long do_fua = (bio->bi_rw & REQ_FUA); unsigned long flags; struct md_rdev *blocked_rdev; - int plugged; int sectors_handled; int max_sectors; int sectors; @@ -1239,7 +1238,6 @@ read_again: * of r10_bios is recored in bio->bi_phys_segments just as with * the read case. */ - plugged = mddev_check_plugged(mddev); r10_bio->read_slot = -1; /* make sure repl_bio gets freed */ raid10_find_phys(conf, r10_bio); @@ -1396,6 +1394,8 @@ retry_write: bio_list_add(&conf->pending_bio_list, mbio); conf->pending_count++; spin_unlock_irqrestore(&conf->device_lock, flags); + if (!mddev_check_plugged(mddev, 0, 0)) + md_wakeup_thread(mddev->thread); if (!r10_bio->devs[i].repl_bio) continue; @@ -1423,6 +1423,8 @@ retry_write: bio_list_add(&conf->pending_bio_list, mbio); conf->pending_count++; spin_unlock_irqrestore(&conf->device_lock, flags); + if (!mddev_check_plugged(mddev)) + md_wakeup_thread(mddev->thread); } /* Don't remove the bias on 'remaining' (one_write_done) until @@ -1448,9 +1450,6 @@ retry_write: /* In case raid10d snuck in to freeze_array */ wake_up(&conf->wait_barrier); - - if (do_sync || !mddev->bitmap || !plugged) - md_wakeup_thread(mddev->thread); } static void status(struct seq_file *seq, struct mddev *mddev) @@ -2661,7 +2660,8 @@ static void raid10d(struct mddev *mddev) blk_start_plug(&plug); for (;;) { - flush_pending_writes(conf); + if (atomic_read(&mddev->plug_cnt) == 0) + flush_pending_writes(conf); spin_lock_irqsave(&conf->device_lock, flags); if (list_empty(head)) { diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c index 7245a9df35a9..04348d76bb30 100644 --- a/drivers/md/raid5.c +++ b/drivers/md/raid5.c @@ -3997,7 +3997,6 @@ static void make_request(struct mddev *mddev, struct bio * bi) struct stripe_head *sh; const int rw = bio_data_dir(bi); int remaining; - int plugged; if (unlikely(bi->bi_rw & REQ_FLUSH)) { md_flush_request(mddev, bi); @@ -4016,7 +4015,6 @@ static void make_request(struct mddev *mddev, struct bio * bi) bi->bi_next = NULL; bi->bi_phys_segments = 1; /* over-loaded to count active stripes */ - plugged = mddev_check_plugged(mddev); for (;logical_sector < last_sector; logical_sector += STRIPE_SECTORS) { DEFINE_WAIT(w); int previous; @@ -4118,6 +4116,7 @@ static void make_request(struct mddev *mddev, struct bio * bi) if ((bi->bi_rw & REQ_SYNC) && !test_and_set_bit(STRIPE_PREREAD_ACTIVE, &sh->state)) atomic_inc(&conf->preread_active_stripes); + mddev_check_plugged(mddev); release_stripe(sh); } else { /* cannot get stripe for read-ahead, just give-up */ @@ -4125,10 +4124,7 @@ static void make_request(struct mddev *mddev, struct bio * bi) finish_wait(&conf->wait_for_overlap, &w); break; } - } - if (!plugged) - md_wakeup_thread(mddev->thread); spin_lock_irq(&conf->device_lock); remaining = raid5_dec_bi_phys_segments(bi); -- cgit v1.2.3-59-g8ed1b From 1ef5325b238676c7a16bcd374250b07e77682736 Mon Sep 17 00:00:00 2001 From: Jerome Glisse Date: Mon, 2 Jul 2012 12:40:54 -0400 Subject: drm/radeon: fix rare segfault MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In gem idle/busy ioctl the radeon object was derefenced after drm_gem_object_unreference_unlocked which in case the object have been destroyed lead to use of a possibly free pointer with possibly wrong data. Signed-off-by: Jerome Glisse Reviewed-by: Alex Deucher Reviewed-by: Christian König Signed-off-by: Dave Airlie --- drivers/gpu/drm/radeon/radeon_gem.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c index f28bd4b7ef98..21ec9f5653ce 100644 --- a/drivers/gpu/drm/radeon/radeon_gem.c +++ b/drivers/gpu/drm/radeon/radeon_gem.c @@ -292,6 +292,7 @@ int radeon_gem_mmap_ioctl(struct drm_device *dev, void *data, int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) { + struct radeon_device *rdev = dev->dev_private; struct drm_radeon_gem_busy *args = data; struct drm_gem_object *gobj; struct radeon_bo *robj; @@ -317,13 +318,14 @@ int radeon_gem_busy_ioctl(struct drm_device *dev, void *data, break; } drm_gem_object_unreference_unlocked(gobj); - r = radeon_gem_handle_lockup(robj->rdev, r); + r = radeon_gem_handle_lockup(rdev, r); return r; } int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) { + struct radeon_device *rdev = dev->dev_private; struct drm_radeon_gem_wait_idle *args = data; struct drm_gem_object *gobj; struct radeon_bo *robj; @@ -336,10 +338,10 @@ int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data, robj = gem_to_radeon_bo(gobj); r = radeon_bo_wait(robj, NULL, false); /* callback hw specific functions if any */ - if (robj->rdev->asic->ioctl_wait_idle) - robj->rdev->asic->ioctl_wait_idle(robj->rdev, robj); + if (rdev->asic->ioctl_wait_idle) + robj->rdev->asic->ioctl_wait_idle(rdev, robj); drm_gem_object_unreference_unlocked(gobj); - r = radeon_gem_handle_lockup(robj->rdev, r); + r = radeon_gem_handle_lockup(rdev, r); return r; } -- cgit v1.2.3-59-g8ed1b From 7b668ebe2fce517873b0c28dd70c10fef1d3dc2f Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Tue, 3 Jul 2012 11:22:11 +0200 Subject: drm: edid: Don't add inferred modes with higher resolution When a monitor EDID doesn't give the preferred bit, driver assumes that the mode with the higest resolution and rate is the preferred mode. Meanwhile the recent changes for allowing more modes in the GFT/CVT ranges give actually more modes, and some modes may be over the native size. Thus such a mode would be picked up as the preferred mode although it's no native resolution. For avoiding such a problem, this patch limits the addition of inferred modes by checking not to be greater than other modes. Also, it checks the duplicated mode entry at the same time. Reviewed-by: Adam Jackson Signed-off-by: Takashi Iwai Signed-off-by: Dave Airlie --- drivers/gpu/drm/drm_edid.c | 27 ++++++++++++++++++++++++--- 1 file changed, 24 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c index 5873e481e5d2..a8743c399e83 100644 --- a/drivers/gpu/drm/drm_edid.c +++ b/drivers/gpu/drm/drm_edid.c @@ -1039,6 +1039,24 @@ mode_in_range(const struct drm_display_mode *mode, struct edid *edid, return true; } +static bool valid_inferred_mode(const struct drm_connector *connector, + const struct drm_display_mode *mode) +{ + struct drm_display_mode *m; + bool ok = false; + + list_for_each_entry(m, &connector->probed_modes, head) { + if (mode->hdisplay == m->hdisplay && + mode->vdisplay == m->vdisplay && + drm_mode_vrefresh(mode) == drm_mode_vrefresh(m)) + return false; /* duplicated */ + if (mode->hdisplay <= m->hdisplay && + mode->vdisplay <= m->vdisplay) + ok = true; + } + return ok; +} + static int drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid, struct detailed_timing *timing) @@ -1048,7 +1066,8 @@ drm_dmt_modes_for_range(struct drm_connector *connector, struct edid *edid, struct drm_device *dev = connector->dev; for (i = 0; i < drm_num_dmt_modes; i++) { - if (mode_in_range(drm_dmt_modes + i, edid, timing)) { + if (mode_in_range(drm_dmt_modes + i, edid, timing) && + valid_inferred_mode(connector, drm_dmt_modes + i)) { newmode = drm_mode_duplicate(dev, &drm_dmt_modes[i]); if (newmode) { drm_mode_probed_add(connector, newmode); @@ -1088,7 +1107,8 @@ drm_gtf_modes_for_range(struct drm_connector *connector, struct edid *edid, return modes; fixup_mode_1366x768(newmode); - if (!mode_in_range(newmode, edid, timing)) { + if (!mode_in_range(newmode, edid, timing) || + !valid_inferred_mode(connector, newmode)) { drm_mode_destroy(dev, newmode); continue; } @@ -1116,7 +1136,8 @@ drm_cvt_modes_for_range(struct drm_connector *connector, struct edid *edid, return modes; fixup_mode_1366x768(newmode); - if (!mode_in_range(newmode, edid, timing)) { + if (!mode_in_range(newmode, edid, timing) || + !valid_inferred_mode(connector, newmode)) { drm_mode_destroy(dev, newmode); continue; } -- cgit v1.2.3-59-g8ed1b From 9f846a16d213523fbe6daea17e20df6b8ac5a1e5 Mon Sep 17 00:00:00 2001 From: Daniel Vetter Date: Sun, 1 Jul 2012 17:09:42 +0200 Subject: drm/i915: kick any firmware framebuffers before claiming the gtt Especially vesafb likes to map everything as uc- (yikes), and if that mapping hangs around still while we try to map the gtt as wc the kernel will downgrade our request to uc-, resulting in abyssal performance. Unfortunately we can't do this as early as readon does (i.e. as the first thing we do when initializing the hw) because our fb/mmio space region moves around on a per-gen basis. So I've had to move it below the gtt initialization, but that seems to work, too. The important thing is that we do this before we set up the gtt wc mapping. Now an altogether different question is why people compile their kernels with vesafb enabled, but I guess making things just work isn't bad per se ... v2: - s/radeondrmfb/inteldrmfb/ - fix up error handling v3: Kill #ifdef X86, this is Intel after all. Noticed by Ben Widawsky. v4: Jani Nikula complained about the pointless bool primary initialization. v5: Don't oops if we can't allocate, noticed by Chris Wilson. v6: Resolve conflicts with agp rework and fixup whitespace. This is commit e188719a2891f01b3100d in drm-next. Backport to 3.5 -fixes queue requested by Dave Airlie - due to grub using vesa on fedora their initrd seems to load vesafb before loading the real kms driver. So tons more people actually experience a dead-slow gpu. Hence also the Cc: stable. Cc: stable@vger.kernel.org Reported-and-tested-by: "Kilarski, Bernard R" Reviewed-by: Chris Wilson Signed-off-by: Daniel Vetter Signed-off-by: Dave Airlie --- drivers/gpu/drm/i915/i915_dma.c | 37 ++++++++++++++++++++++++++++++------- 1 file changed, 30 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index f94792626b94..36822b924eb1 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1401,6 +1401,27 @@ i915_mtrr_setup(struct drm_i915_private *dev_priv, unsigned long base, } } +static void i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv) +{ + struct apertures_struct *ap; + struct pci_dev *pdev = dev_priv->dev->pdev; + bool primary; + + ap = alloc_apertures(1); + if (!ap) + return; + + ap->ranges[0].base = dev_priv->dev->agp->base; + ap->ranges[0].size = + dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT; + primary = + pdev->resource[PCI_ROM_RESOURCE].flags & IORESOURCE_ROM_SHADOW; + + remove_conflicting_framebuffers(ap, "inteldrmfb", primary); + + kfree(ap); +} + /** * i915_driver_load - setup chip and create an initial config * @dev: DRM device @@ -1446,6 +1467,15 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) goto free_priv; } + dev_priv->mm.gtt = intel_gtt_get(); + if (!dev_priv->mm.gtt) { + DRM_ERROR("Failed to initialize GTT\n"); + ret = -ENODEV; + goto put_bridge; + } + + i915_kick_out_firmware_fb(dev_priv); + pci_set_master(dev->pdev); /* overlay on gen2 is broken and can't address above 1G */ @@ -1471,13 +1501,6 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags) goto put_bridge; } - dev_priv->mm.gtt = intel_gtt_get(); - if (!dev_priv->mm.gtt) { - DRM_ERROR("Failed to initialize GTT\n"); - ret = -ENODEV; - goto out_rmmap; - } - aperture_size = dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT; dev_priv->mm.gtt_mapping = -- cgit v1.2.3-59-g8ed1b From 75331a597cf4cde51d9b0bb22cbd03b9837ef9e4 Mon Sep 17 00:00:00 2001 From: Paul Mundt Date: Mon, 2 Jul 2012 14:34:11 +0900 Subject: security: Fix nommu build. The security + nommu configuration presently blows up with an undefined reference to BDI_CAP_EXEC_MAP: security/security.c: In function 'mmap_prot': security/security.c:687:36: error: dereferencing pointer to incomplete type security/security.c:688:16: error: 'BDI_CAP_EXEC_MAP' undeclared (first use in this function) security/security.c:688:16: note: each undeclared identifier is reported only once for each function it appears in include backing-dev.h directly to fix it up. Signed-off-by: Paul Mundt Signed-off-by: James Morris --- security/security.c | 1 + 1 file changed, 1 insertion(+) diff --git a/security/security.c b/security/security.c index 3efc9b12aef4..860aeb349cb3 100644 --- a/security/security.c +++ b/security/security.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #define MAX_LSM_EVM_XATTR 2 -- cgit v1.2.3-59-g8ed1b From 0d200aefd4ac51787b6b80de1bb7ce93bccd59f6 Mon Sep 17 00:00:00 2001 From: Joe Thornber Date: Tue, 3 Jul 2012 12:55:31 +0100 Subject: dm thin: commit metadata before creating metadata snapshot Userland sometimes sees a corrupt metadata block if metadata is changing rapidly when a metadata snapshot is reserved for userland, To make the problem go away, commit before we take the metadata snapshot (which is a sensible thing to do anyway). The checksums mean userland spots this corruption immediately so there's no risk of acting on incorrect data. No corruption exists from the kernel's point of view, and thin_check passes after pool shutdown. I believe this is to do with shared blocks at the first level of the {device, mapping} btree. Prior to the metadata-snap support no sharing at this level was possible, so this patch is only required after commit cc8394d86f045b86ff303d3c9e4ce47d97148951 ("dm thin: provide userspace access to pool metadata"). Signed-off-by: Joe Thornber Signed-off-by: Mike Snitzer Signed-off-by: Alasdair G Kergon --- drivers/md/dm-thin.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/md/dm-thin.c b/drivers/md/dm-thin.c index 37fdaf81bd1f..ce59824fb414 100644 --- a/drivers/md/dm-thin.c +++ b/drivers/md/dm-thin.c @@ -2292,6 +2292,13 @@ static int process_reserve_metadata_snap_mesg(unsigned argc, char **argv, struct if (r) return r; + r = dm_pool_commit_metadata(pool->pmd); + if (r) { + DMERR("%s: dm_pool_commit_metadata() failed, error = %d", + __func__, r); + return r; + } + r = dm_pool_reserve_metadata_snap(pool->pmd); if (r) DMWARN("reserve_metadata_snap message failed."); -- cgit v1.2.3-59-g8ed1b From 25d7cd6faa7ae6ed2565617c3ee2500ccb8a9f7f Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Tue, 3 Jul 2012 12:55:33 +0100 Subject: dm persistent data: fix shadow_info_leak on dm_tm_destroy Cleanup the shadow table before destroying the transaction manager. Reference: leak was identified with kmemleak when running test_discard_random_sectors in the thinp-test-suite. Signed-off-by: Mike Snitzer Cc: stable@vger.kernel.org Signed-off-by: Alasdair G Kergon --- drivers/md/persistent-data/dm-transaction-manager.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/md/persistent-data/dm-transaction-manager.c b/drivers/md/persistent-data/dm-transaction-manager.c index 400fe144c0cd..02bf78e9d10d 100644 --- a/drivers/md/persistent-data/dm-transaction-manager.c +++ b/drivers/md/persistent-data/dm-transaction-manager.c @@ -138,6 +138,9 @@ EXPORT_SYMBOL_GPL(dm_tm_create_non_blocking_clone); void dm_tm_destroy(struct dm_transaction_manager *tm) { + if (!tm->is_clone) + wipe_shadow_table(tm); + kfree(tm); } EXPORT_SYMBOL_GPL(dm_tm_destroy); -- cgit v1.2.3-59-g8ed1b From 62662303e7f590fdfbb0070ab820a0ad4267c119 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Tue, 3 Jul 2012 12:55:35 +0100 Subject: dm persistent data: handle space map checker creation failure If CONFIG_DM_DEBUG_SPACE_MAPS is enabled and dm_sm_checker_create() fails, dm_tm_create_internal() would still return success even though it cleaned up all resources it was supposed to have created. This will lead to a kernel crash: general protection fault: 0000 [#1] SMP DEBUG_PAGEALLOC ... RIP: 0010:[] [] dm_bufio_get_block_size+0x9/0x20 Call Trace: [] dm_bm_block_size+0xe/0x10 [] sm_ll_init+0x78/0xd0 [] sm_ll_new_disk+0x16/0xa0 [] dm_sm_disk_create+0xfe/0x160 [] dm_pool_metadata_open+0x16e/0x6a0 [] pool_ctr+0x3f0/0x900 [] dm_table_add_target+0x195/0x450 [] table_load+0xe4/0x330 [] ctl_ioctl+0x15a/0x2c0 [] dm_ctl_ioctl+0x13/0x20 [] do_vfs_ioctl+0x98/0x560 [] sys_ioctl+0x91/0xa0 [] system_call_fastpath+0x16/0x1b Fix the space map checker code to return an appropriate ERR_PTR and have dm_sm_disk_create() and dm_tm_create_internal() check for it with IS_ERR. Reported-by: Vivek Goyal Signed-off-by: Mike Snitzer Cc: stable@vger.kernel.org Signed-off-by: Alasdair G Kergon --- drivers/md/persistent-data/dm-space-map-checker.c | 24 +++++++++++----------- drivers/md/persistent-data/dm-space-map-disk.c | 11 +++++++++- .../md/persistent-data/dm-transaction-manager.c | 8 ++++++-- 3 files changed, 28 insertions(+), 15 deletions(-) diff --git a/drivers/md/persistent-data/dm-space-map-checker.c b/drivers/md/persistent-data/dm-space-map-checker.c index 50ed53bf4aa2..6d7c8329250f 100644 --- a/drivers/md/persistent-data/dm-space-map-checker.c +++ b/drivers/md/persistent-data/dm-space-map-checker.c @@ -343,25 +343,25 @@ struct dm_space_map *dm_sm_checker_create(struct dm_space_map *sm) int r; struct sm_checker *smc; - if (!sm) - return NULL; + if (IS_ERR_OR_NULL(sm)) + return ERR_PTR(-EINVAL); smc = kmalloc(sizeof(*smc), GFP_KERNEL); if (!smc) - return NULL; + return ERR_PTR(-ENOMEM); memcpy(&smc->sm, &ops_, sizeof(smc->sm)); r = ca_create(&smc->old_counts, sm); if (r) { kfree(smc); - return NULL; + return ERR_PTR(r); } r = ca_create(&smc->counts, sm); if (r) { ca_destroy(&smc->old_counts); kfree(smc); - return NULL; + return ERR_PTR(r); } smc->real_sm = sm; @@ -371,7 +371,7 @@ struct dm_space_map *dm_sm_checker_create(struct dm_space_map *sm) ca_destroy(&smc->counts); ca_destroy(&smc->old_counts); kfree(smc); - return NULL; + return ERR_PTR(r); } r = ca_commit(&smc->old_counts, &smc->counts); @@ -379,7 +379,7 @@ struct dm_space_map *dm_sm_checker_create(struct dm_space_map *sm) ca_destroy(&smc->counts); ca_destroy(&smc->old_counts); kfree(smc); - return NULL; + return ERR_PTR(r); } return &smc->sm; @@ -391,25 +391,25 @@ struct dm_space_map *dm_sm_checker_create_fresh(struct dm_space_map *sm) int r; struct sm_checker *smc; - if (!sm) - return NULL; + if (IS_ERR_OR_NULL(sm)) + return ERR_PTR(-EINVAL); smc = kmalloc(sizeof(*smc), GFP_KERNEL); if (!smc) - return NULL; + return ERR_PTR(-ENOMEM); memcpy(&smc->sm, &ops_, sizeof(smc->sm)); r = ca_create(&smc->old_counts, sm); if (r) { kfree(smc); - return NULL; + return ERR_PTR(r); } r = ca_create(&smc->counts, sm); if (r) { ca_destroy(&smc->old_counts); kfree(smc); - return NULL; + return ERR_PTR(r); } smc->real_sm = sm; diff --git a/drivers/md/persistent-data/dm-space-map-disk.c b/drivers/md/persistent-data/dm-space-map-disk.c index fc469ba9f627..3d0ed5332883 100644 --- a/drivers/md/persistent-data/dm-space-map-disk.c +++ b/drivers/md/persistent-data/dm-space-map-disk.c @@ -290,7 +290,16 @@ struct dm_space_map *dm_sm_disk_create(struct dm_transaction_manager *tm, dm_block_t nr_blocks) { struct dm_space_map *sm = dm_sm_disk_create_real(tm, nr_blocks); - return dm_sm_checker_create_fresh(sm); + struct dm_space_map *smc; + + if (IS_ERR_OR_NULL(sm)) + return sm; + + smc = dm_sm_checker_create_fresh(sm); + if (IS_ERR(smc)) + dm_sm_destroy(sm); + + return smc; } EXPORT_SYMBOL_GPL(dm_sm_disk_create); diff --git a/drivers/md/persistent-data/dm-transaction-manager.c b/drivers/md/persistent-data/dm-transaction-manager.c index 02bf78e9d10d..e5604b32d91f 100644 --- a/drivers/md/persistent-data/dm-transaction-manager.c +++ b/drivers/md/persistent-data/dm-transaction-manager.c @@ -347,8 +347,10 @@ static int dm_tm_create_internal(struct dm_block_manager *bm, } *sm = dm_sm_checker_create(inner); - if (!*sm) + if (IS_ERR(*sm)) { + r = PTR_ERR(*sm); goto bad2; + } } else { r = dm_bm_write_lock(dm_tm_get_bm(*tm), sb_location, @@ -367,8 +369,10 @@ static int dm_tm_create_internal(struct dm_block_manager *bm, } *sm = dm_sm_checker_create(inner); - if (!*sm) + if (IS_ERR(*sm)) { + r = PTR_ERR(*sm); goto bad2; + } } return 0; -- cgit v1.2.3-59-g8ed1b From b0239faaf87c38bb419c9264bf20817438ddc3a9 Mon Sep 17 00:00:00 2001 From: Mike Snitzer Date: Tue, 3 Jul 2012 12:55:37 +0100 Subject: dm persistent data: fix allocation failure in space map checker init If CONFIG_DM_DEBUG_SPACE_MAPS is enabled and memory is fragmented and a sufficiently-large metadata device is used in a thin pool then the space map checker will fail to allocate the memory it requires. Switch from kmalloc to vmalloc to allow larger virtually contiguous allocations for the space map checker's internal count arrays. Reported-by: Vivek Goyal Cc: stable@kernel.org Signed-off-by: Mike Snitzer Signed-off-by: Alasdair G Kergon --- drivers/md/persistent-data/dm-space-map-checker.c | 30 ++++++++++++++--------- 1 file changed, 19 insertions(+), 11 deletions(-) diff --git a/drivers/md/persistent-data/dm-space-map-checker.c b/drivers/md/persistent-data/dm-space-map-checker.c index 6d7c8329250f..fc90c11620ad 100644 --- a/drivers/md/persistent-data/dm-space-map-checker.c +++ b/drivers/md/persistent-data/dm-space-map-checker.c @@ -8,6 +8,7 @@ #include #include +#include #ifdef CONFIG_DM_DEBUG_SPACE_MAPS @@ -89,13 +90,23 @@ static int ca_create(struct count_array *ca, struct dm_space_map *sm) ca->nr = nr_blocks; ca->nr_free = nr_blocks; - ca->counts = kzalloc(sizeof(*ca->counts) * nr_blocks, GFP_KERNEL); - if (!ca->counts) - return -ENOMEM; + + if (!nr_blocks) + ca->counts = NULL; + else { + ca->counts = vzalloc(sizeof(*ca->counts) * nr_blocks); + if (!ca->counts) + return -ENOMEM; + } return 0; } +static void ca_destroy(struct count_array *ca) +{ + vfree(ca->counts); +} + static int ca_load(struct count_array *ca, struct dm_space_map *sm) { int r; @@ -126,12 +137,14 @@ static int ca_load(struct count_array *ca, struct dm_space_map *sm) static int ca_extend(struct count_array *ca, dm_block_t extra_blocks) { dm_block_t nr_blocks = ca->nr + extra_blocks; - uint32_t *counts = kzalloc(sizeof(*counts) * nr_blocks, GFP_KERNEL); + uint32_t *counts = vzalloc(sizeof(*counts) * nr_blocks); if (!counts) return -ENOMEM; - memcpy(counts, ca->counts, sizeof(*counts) * ca->nr); - kfree(ca->counts); + if (ca->counts) { + memcpy(counts, ca->counts, sizeof(*counts) * ca->nr); + ca_destroy(ca); + } ca->nr = nr_blocks; ca->nr_free += extra_blocks; ca->counts = counts; @@ -151,11 +164,6 @@ static int ca_commit(struct count_array *old, struct count_array *new) return 0; } -static void ca_destroy(struct count_array *ca) -{ - kfree(ca->counts); -} - /*----------------------------------------------------------------*/ struct sm_checker { -- cgit v1.2.3-59-g8ed1b From 18068bdd5f59229623b2fa518a6389e346642b0d Mon Sep 17 00:00:00 2001 From: Milan Broz Date: Tue, 3 Jul 2012 12:55:41 +0100 Subject: dm: verity fix documentation Veritysetup is now part of cryptsetup package. Remove on-disk header description (which is not parsed in kernel) and point users to cryptsetup where it the format is documented. Mention units for block size paramaters. Fix target line specification and dmsetup parameters. Signed-off-by: Milan Broz Cc: stable@kernel.org Signed-off-by: Alasdair G Kergon --- Documentation/device-mapper/verity.txt | 131 ++++++++++++--------------------- 1 file changed, 46 insertions(+), 85 deletions(-) diff --git a/Documentation/device-mapper/verity.txt b/Documentation/device-mapper/verity.txt index 32e48797a14f..9884681535ee 100644 --- a/Documentation/device-mapper/verity.txt +++ b/Documentation/device-mapper/verity.txt @@ -7,39 +7,39 @@ This target is read-only. Construction Parameters ======================= - + - This is the version number of the on-disk format. + This is the type of the on-disk hash format. 0 is the original format used in the Chromium OS. - The salt is appended when hashing, digests are stored continuously and - the rest of the block is padded with zeros. + The salt is appended when hashing, digests are stored continuously and + the rest of the block is padded with zeros. 1 is the current format that should be used for new devices. - The salt is prepended when hashing and each digest is - padded with zeros to the power of two. + The salt is prepended when hashing and each digest is + padded with zeros to the power of two. - This is the device containing the data the integrity of which needs to be + This is the device containing data, the integrity of which needs to be checked. It may be specified as a path, like /dev/sdaX, or a device number, :. - This is the device that that supplies the hash tree data. It may be + This is the device that supplies the hash tree data. It may be specified similarly to the device path and may be the same device. If the - same device is used, the hash_start should be outside of the dm-verity - configured device size. + same device is used, the hash_start should be outside the configured + dm-verity device. - The block size on a data device. Each block corresponds to one digest on - the hash device. + The block size on a data device in bytes. + Each block corresponds to one digest on the hash device. - The size of a hash block. + The size of a hash block in bytes. The number of data blocks on the data device. Additional blocks are @@ -65,7 +65,7 @@ Construction Parameters Theory of operation =================== -dm-verity is meant to be setup as part of a verified boot path. This +dm-verity is meant to be set up as part of a verified boot path. This may be anything ranging from a boot using tboot or trustedgrub to just booting from a known-good device (like a USB drive or CD). @@ -73,20 +73,20 @@ When a dm-verity device is configured, it is expected that the caller has been authenticated in some way (cryptographic signatures, etc). After instantiation, all hashes will be verified on-demand during disk access. If they cannot be verified up to the root node of the -tree, the root hash, then the I/O will fail. This should identify +tree, the root hash, then the I/O will fail. This should detect tampering with any data on the device and the hash data. Cryptographic hashes are used to assert the integrity of the device on a -per-block basis. This allows for a lightweight hash computation on first read -into the page cache. Block hashes are stored linearly-aligned to the nearest -block the size of a page. +per-block basis. This allows for a lightweight hash computation on first read +into the page cache. Block hashes are stored linearly, aligned to the nearest +block size. Hash Tree --------- Each node in the tree is a cryptographic hash. If it is a leaf node, the hash -is of some block data on disk. If it is an intermediary node, then the hash is -of a number of child nodes. +of some data block on disk is calculated. If it is an intermediary node, +the hash of a number of child nodes is calculated. Each entry in the tree is a collection of neighboring nodes that fit in one block. The number is determined based on block_size and the size of the @@ -110,63 +110,23 @@ alg = sha256, num_blocks = 32768, block_size = 4096 On-disk format ============== -Below is the recommended on-disk format. The verity kernel code does not -read the on-disk header. It only reads the hash blocks which directly -follow the header. It is expected that a user-space tool will verify the -integrity of the verity_header and then call dmsetup with the correct -parameters. Alternatively, the header can be omitted and the dmsetup -parameters can be passed via the kernel command-line in a rooted chain -of trust where the command-line is verified. +The verity kernel code does not read the verity metadata on-disk header. +It only reads the hash blocks which directly follow the header. +It is expected that a user-space tool will verify the integrity of the +verity header. -The on-disk format is especially useful in cases where the hash blocks -are on a separate partition. The magic number allows easy identification -of the partition contents. Alternatively, the hash blocks can be stored -in the same partition as the data to be verified. In such a configuration -the filesystem on the partition would be sized a little smaller than -the full-partition, leaving room for the hash blocks. - -struct superblock { - uint8_t signature[8] - "verity\0\0"; - - uint8_t version; - 1 - current format - - uint8_t data_block_bits; - log2(data block size) - - uint8_t hash_block_bits; - log2(hash block size) - - uint8_t pad1[1]; - zero padding - - uint16_t salt_size; - big-endian salt size - - uint8_t pad2[2]; - zero padding - - uint32_t data_blocks_hi; - big-endian high 32 bits of the 64-bit number of data blocks - - uint32_t data_blocks_lo; - big-endian low 32 bits of the 64-bit number of data blocks - - uint8_t algorithm[16]; - cryptographic algorithm - - uint8_t salt[384]; - salt (the salt size is specified above) - - uint8_t pad3[88]; - zero padding to 512-byte boundary -} +Alternatively, the header can be omitted and the dmsetup parameters can +be passed via the kernel command-line in a rooted chain of trust where +the command-line is verified. Directly following the header (and with sector number padded to the next hash block boundary) are the hash blocks which are stored a depth at a time (starting from the root), sorted in order of increasing index. +The full specification of kernel parameters and on-disk metadata format +is available at the cryptsetup project's wiki page + http://code.google.com/p/cryptsetup/wiki/DMVerity + Status ====== V (for Valid) is returned if every check performed so far was valid. @@ -174,21 +134,22 @@ If any check failed, C (for Corruption) is returned. Example ======= - -Setup a device: - dmsetup create vroot --table \ - "0 2097152 "\ - "verity 1 /dev/sda1 /dev/sda2 4096 4096 2097152 1 "\ +Set up a device: + # dmsetup create vroot --readonly --table \ + "0 2097152 verity 1 /dev/sda1 /dev/sda2 4096 4096 262144 1 sha256 "\ "4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076 "\ "1234000000000000000000000000000000000000000000000000000000000000" A command line tool veritysetup is available to compute or verify -the hash tree or activate the kernel driver. This is available from -the LVM2 upstream repository and may be supplied as a package called -device-mapper-verity-tools: - git://sources.redhat.com/git/lvm2 - http://sourceware.org/git/?p=lvm2.git - http://sourceware.org/cgi-bin/cvsweb.cgi/LVM2/verity?cvsroot=lvm2 - -veritysetup -a vroot /dev/sda1 /dev/sda2 \ - 4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076 +the hash tree or activate the kernel device. This is available from +the cryptsetup upstream repository http://code.google.com/p/cryptsetup/ +(as a libcryptsetup extension). + +Create hash on the device: + # veritysetup format /dev/sda1 /dev/sda2 + ... + Root hash: 4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076 + +Activate the device: + # veritysetup create vroot /dev/sda1 /dev/sda2 \ + 4392712ba01368efdf14b05c76f9e4df0d53664630b5d48632ed17a137f39076 -- cgit v1.2.3-59-g8ed1b From 7b86cef34afceeecf57d4d07f3cfab06f8b60b13 Mon Sep 17 00:00:00 2001 From: Jon Hunter Date: Tue, 3 Jul 2012 11:05:50 -0500 Subject: gpio/omap: fix invalid context restore of gpio bank-0 Currently the gpio _runtime_resume/suspend functions are calling the get_context_loss_count() platform function if the function is populated for a gpio bank. This function is used to determine if the gpio bank logic state needs to be restored due to a power transition. This function will be populated for all banks, but it should only be called for banks that have the "loses_context" variable set. It is pointless to call this if loses_context is false as we know the context will never be lost and will not need restoring. For all OMAP2+ devices gpio bank-0 is in an always-on power domain and so will never lose context. We found that the get_context_loss_count() was being called for bank-0 during the probe and returning 1 instead of 0 indicating that the context had been lost. This was causing the context restore function to be called at probe time for this bank and because the context had never been saved, was restoring an invalid state. This ultimately resulted in a crash [1]. This issue is a regression that was exposed by commit 1b1287032 (gpio/omap: fix missing check in *_runtime_suspend()). There are multiple bugs here that need to be addressed ... 1. Why the always-on power domain returns a context loss count of 1? This needs to be fixed in the power domain code [2]. However, the gpio driver should not assume the loss count is 0 to begin with. 2. The omap gpio driver should never be calling get_context_loss_count for a gpio bank in a always-on domain. This is pointless and adds unneccessary overhead. 3. The OMAP gpio driver assumes that the initial power domain context loss count will be 0 at the time the gpio driver is probed. However, it could be possible that this is not the case and an invalid context restore could be performed during the probe. To avoid this only populate the get_context_loss_count() function pointer after the initial call to pm_runtime_get() has occurred. This will ensure that the first pm_runtime_put() initialised the loss count correctly. This patch addresses issues 2 and 3 above. [1] http://marc.info/?l=linux-omap&m=134065775323775&w=2 [2] http://marc.info/?l=linux-omap&m=134100413303810&w=2 Cc: Kevin Hilman Cc: Grant Likely Cc: Linus Walleij Cc: Tarun Kanti DebBarma Cc: Franky Lin Cc: Santosh Shilimkar Cc: NeilBrown Reported-by: Franky Lin Reviewed-by: Santosh Shilimkar Tested-by: Franky Lin Acked-by: Kevin Hilman Tested-by: NeilBrown Signed-off-by: Jon Hunter Signed-off-by: Kevin Hilman --- drivers/gpio/gpio-omap.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c index ff213e70fa5a..4fbc208c32cf 100644 --- a/drivers/gpio/gpio-omap.c +++ b/drivers/gpio/gpio-omap.c @@ -1091,7 +1091,6 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev) bank->is_mpuio = pdata->is_mpuio; bank->non_wakeup_gpios = pdata->non_wakeup_gpios; bank->loses_context = pdata->loses_context; - bank->get_context_loss_count = pdata->get_context_loss_count; bank->regs = pdata->regs; #ifdef CONFIG_OF_GPIO bank->chip.of_node = of_node_get(node); @@ -1145,6 +1144,9 @@ static int __devinit omap_gpio_probe(struct platform_device *pdev) omap_gpio_chip_init(bank); omap_gpio_show_rev(bank); + if (bank->loses_context) + bank->get_context_loss_count = pdata->get_context_loss_count; + pm_runtime_put(bank->dev); list_add_tail(&bank->node, &omap_gpio_list); -- cgit v1.2.3-59-g8ed1b From ea8e867d9b505b1c852f9932ba75504bc4eebeaa Mon Sep 17 00:00:00 2001 From: Jayachandran C Date: Tue, 8 May 2012 18:11:55 +0530 Subject: MIPS: Netlogic: Fix PCIX irq on XLR chips The correct irq is PIC_PCIX_IRQ Signed-off-by: Jayachandran C Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3750/ Signed-off-by: Ralf Baechle --- arch/mips/pci/pci-xlr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/pci/pci-xlr.c b/arch/mips/pci/pci-xlr.c index 1644805a6730..50ff4dc28b4f 100644 --- a/arch/mips/pci/pci-xlr.c +++ b/arch/mips/pci/pci-xlr.c @@ -327,7 +327,7 @@ static int __init pcibios_init(void) } } else { /* XLR PCI controller ACK */ - irq_set_handler_data(PIC_PCIE_XLSB0_LINK3_IRQ, xlr_pci_ack); + irq_set_handler_data(PIC_PCIX_IRQ, xlr_pci_ack); } return 0; -- cgit v1.2.3-59-g8ed1b From 249e2a38fbd28ffaadba112290742ada16946900 Mon Sep 17 00:00:00 2001 From: Ganesan Ramalingam Date: Tue, 8 May 2012 18:11:56 +0530 Subject: MIPS: Netlogic: MSI enable fix for XLS MSI interrupts do not work on XLS after commit a776c49 ( "PCI: msi: Disable msi interrupts when we initialize a pci device" ) because the change disables MSI interrupts on the XLS PCIe bridges during the PCI enumeration. Fix this by enabling MSI interrupts on the bridge in the arch_setup_msi_irq() function. A new function xls_get_pcie_link() has been introduced to get the PCI device corresponding to the top level PCIe bridge on which MSI has to be enabled. Also, update get_irq_vector() to use the new xls_get_pcie_link() function and PCI_SLOT() macro for determining the IRQ of PCI devices. Signed-off-by: Ganesan Ramalingam Signed-off-by: Jayachandran C Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3753/ Signed-off-by: Ralf Baechle --- arch/mips/pci/pci-xlr.c | 59 +++++++++++++++++++++++++++++++++++++++++-------- 1 file changed, 50 insertions(+), 9 deletions(-) diff --git a/arch/mips/pci/pci-xlr.c b/arch/mips/pci/pci-xlr.c index 50ff4dc28b4f..172af1cd5867 100644 --- a/arch/mips/pci/pci-xlr.c +++ b/arch/mips/pci/pci-xlr.c @@ -41,6 +41,7 @@ #include #include #include +#include #include @@ -156,35 +157,55 @@ struct pci_controller nlm_pci_controller = { .io_offset = 0x00000000UL, }; +/* + * The top level PCIe links on the XLS PCIe controller appear as + * bridges. Given a device, this function finds which link it is + * on. + */ +static struct pci_dev *xls_get_pcie_link(const struct pci_dev *dev) +{ + struct pci_bus *bus, *p; + + /* Find the bridge on bus 0 */ + bus = dev->bus; + for (p = bus->parent; p && p->number != 0; p = p->parent) + bus = p; + + return p ? bus->self : NULL; +} + static int get_irq_vector(const struct pci_dev *dev) { + struct pci_dev *lnk; + if (!nlm_chip_is_xls()) - return PIC_PCIX_IRQ; /* for XLR just one IRQ*/ + return PIC_PCIX_IRQ; /* for XLR just one IRQ */ /* * For XLS PCIe, there is an IRQ per Link, find out which * link the device is on to assign interrupts - */ - if (dev->bus->self == NULL) + */ + lnk = xls_get_pcie_link(dev); + if (lnk == NULL) return 0; - switch (dev->bus->self->devfn) { - case 0x0: + switch (PCI_SLOT(lnk->devfn)) { + case 0: return PIC_PCIE_LINK0_IRQ; - case 0x8: + case 1: return PIC_PCIE_LINK1_IRQ; - case 0x10: + case 2: if (nlm_chip_is_xls_b()) return PIC_PCIE_XLSB0_LINK2_IRQ; else return PIC_PCIE_LINK2_IRQ; - case 0x18: + case 3: if (nlm_chip_is_xls_b()) return PIC_PCIE_XLSB0_LINK3_IRQ; else return PIC_PCIE_LINK3_IRQ; } - WARN(1, "Unexpected devfn %d\n", dev->bus->self->devfn); + WARN(1, "Unexpected devfn %d\n", lnk->devfn); return 0; } @@ -202,7 +223,27 @@ void arch_teardown_msi_irq(unsigned int irq) int arch_setup_msi_irq(struct pci_dev *dev, struct msi_desc *desc) { struct msi_msg msg; + struct pci_dev *lnk; int irq, ret; + u16 val; + + /* MSI not supported on XLR */ + if (!nlm_chip_is_xls()) + return 1; + + /* + * Enable MSI on the XLS PCIe controller bridge which was disabled + * at enumeration, the bridge MSI capability is at 0x50 + */ + lnk = xls_get_pcie_link(dev); + if (lnk == NULL) + return 1; + + pci_read_config_word(lnk, 0x50 + PCI_MSI_FLAGS, &val); + if ((val & PCI_MSI_FLAGS_ENABLE) == 0) { + val |= PCI_MSI_FLAGS_ENABLE; + pci_write_config_word(lnk, 0x50 + PCI_MSI_FLAGS, val); + } irq = get_irq_vector(dev); if (irq <= 0) -- cgit v1.2.3-59-g8ed1b From b876c1a0bcfe68a5eaf03f325cb2a09822bf11f2 Mon Sep 17 00:00:00 2001 From: Jayachandran C Date: Tue, 3 Jul 2012 19:04:02 +0200 Subject: MIPS: Netlogic: Fix TLB size of boot CPU. Starting other threads in the core will change the number of TLB entries of a CPU. Re-calculate current_cpu_data.tlbsize on the boot cpu after enabling and waking up other threads. The secondary CPUs do not need this logic because the threads are enabled on the secondary cores at wakeup and before cpu_probe. Signed-off-by: Jayachandran C Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3751/ Signed-off-by: Ralf Baechle --- arch/mips/netlogic/xlp/setup.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/arch/mips/netlogic/xlp/setup.c b/arch/mips/netlogic/xlp/setup.c index acb677a1227c..b3df7c2aad1e 100644 --- a/arch/mips/netlogic/xlp/setup.c +++ b/arch/mips/netlogic/xlp/setup.c @@ -82,8 +82,10 @@ void __init prom_free_prom_memory(void) void xlp_mmu_init(void) { + /* enable extended TLB and Large Fixed TLB */ write_c0_config6(read_c0_config6() | 0x24); - current_cpu_data.tlbsize = ((read_c0_config6() >> 16) & 0xffff) + 1; + + /* set page mask of Fixed TLB in config7 */ write_c0_config7(PM_DEFAULT_MASK >> (13 + (ffz(PM_DEFAULT_MASK >> 13) / 2))); } @@ -100,6 +102,10 @@ void __init prom_init(void) nlm_common_ebase = read_c0_ebase() & (~((1 << 12) - 1)); #ifdef CONFIG_SMP nlm_wakeup_secondary_cpus(0xffffffff); + + /* update TLB size after waking up threads */ + current_cpu_data.tlbsize = ((read_c0_config6() >> 16) & 0xffff) + 1; + register_smp_ops(&nlm_smp_ops); #endif } -- cgit v1.2.3-59-g8ed1b From ec01d738a1691dfc85b96b9f796020267a7be577 Mon Sep 17 00:00:00 2001 From: Jeff Layton Date: Mon, 2 Jul 2012 07:24:25 -0400 Subject: cifs: when server doesn't set CAP_LARGE_READ_X, cap default rsize at MaxBufferSize When the server doesn't advertise CAP_LARGE_READ_X, then MS-CIFS states that you must cap the size of the read at the client's MaxBufferSize. Unfortunately, testing with many older servers shows that they often can't service a read larger than their own MaxBufferSize. Since we can't assume what the server will do in this situation, we must be conservative here for the default. When the server can't do large reads, then assume that it can't satisfy any read larger than its MaxBufferSize either. Luckily almost all modern servers can do large reads, so this won't affect them. This is really just for older win9x and OS/2 era servers. Also, note that this patch just governs the default rsize. The admin can always override this if he so chooses. Cc: # 3.2 Reported-by: David H. Durgee Signed-off-by: Jeff Layton Signed-off-by: Steven French --- fs/cifs/connect.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/fs/cifs/connect.c b/fs/cifs/connect.c index 5b3840725d01..0ae86ddf2213 100644 --- a/fs/cifs/connect.c +++ b/fs/cifs/connect.c @@ -3495,18 +3495,15 @@ cifs_negotiate_rsize(struct cifs_tcon *tcon, struct smb_vol *pvolume_info) * MS-CIFS indicates that servers are only limited by the client's * bufsize for reads, testing against win98se shows that it throws * INVALID_PARAMETER errors if you try to request too large a read. + * OS/2 just sends back short reads. * - * If the server advertises a MaxBufferSize of less than one page, - * assume that it also can't satisfy reads larger than that either. - * - * FIXME: Is there a better heuristic for this? + * If the server doesn't advertise CAP_LARGE_READ_X, then assume that + * it can't handle a read request larger than its MaxBufferSize either. */ if (tcon->unix_ext && (unix_cap & CIFS_UNIX_LARGE_READ_CAP)) defsize = CIFS_DEFAULT_IOSIZE; else if (server->capabilities & CAP_LARGE_READ_X) defsize = CIFS_DEFAULT_NON_POSIX_RSIZE; - else if (server->maxBuf >= PAGE_CACHE_SIZE) - defsize = CIFSMaxBufSize; else defsize = server->maxBuf - sizeof(READ_RSP); -- cgit v1.2.3-59-g8ed1b From 863b13271f1608ab3af6f7a371047d9a66693e38 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Tue, 3 Jul 2012 12:11:41 +0530 Subject: clk: fix parent validation in __clk_set_parent() The below commit introduced a bug in __clk_set_parent() which could cause it to *skip* the parent validation which makes sure the parent passed to the api is a valid one. commit 7975059db572eb47f0fb272a62afeae272a4b209 Author: Rajendra Nayak Date: Wed Jun 6 14:41:31 2012 +0530 clk: Allow late cache allocation for clk->parents This was identified by the following compiler warning.. drivers/clk/clk.c: In function '__clk_set_parent': drivers/clk/clk.c:1083:5: warning: 'i' may be used uninitialized in this function [-Wuninitialized] .. as reported by Marc Kleine-Budde. There were various options discussed on how to fix this, one being initing 'i' to clk->num_parents, but the below approach was found to be more appropriate as it also makes the 'parent validation' code simpler to read. Reported-by: Marc Kleine-Budde Signed-off-by: Rajendra Nayak Signed-off-by: Mike Turquette Cc: stable@kernel.org --- drivers/clk/clk.c | 28 +++++++++++++--------------- 1 file changed, 13 insertions(+), 15 deletions(-) diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index dcbe05616090..9a1eb0cfa95f 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -1067,26 +1067,24 @@ static int __clk_set_parent(struct clk *clk, struct clk *parent) old_parent = clk->parent; - /* find index of new parent clock using cached parent ptrs */ - if (clk->parents) - for (i = 0; i < clk->num_parents; i++) - if (clk->parents[i] == parent) - break; - else + if (!clk->parents) clk->parents = kzalloc((sizeof(struct clk*) * clk->num_parents), GFP_KERNEL); /* - * find index of new parent clock using string name comparison - * also try to cache the parent to avoid future calls to __clk_lookup + * find index of new parent clock using cached parent ptrs, + * or if not yet cached, use string name comparison and cache + * them now to avoid future calls to __clk_lookup. */ - if (i == clk->num_parents) - for (i = 0; i < clk->num_parents; i++) - if (!strcmp(clk->parent_names[i], parent->name)) { - if (clk->parents) - clk->parents[i] = __clk_lookup(parent->name); - break; - } + for (i = 0; i < clk->num_parents; i++) { + if (clk->parents && clk->parents[i] == parent) + break; + else if (!strcmp(clk->parent_names[i], parent->name)) { + if (clk->parents) + clk->parents[i] = __clk_lookup(parent->name); + break; + } + } if (i == clk->num_parents) { pr_debug("%s: clock %s is not a possible parent of clock %s\n", -- cgit v1.2.3-59-g8ed1b From d92d95b6bf2722ffa0fefa7651c51bf336743dd7 Mon Sep 17 00:00:00 2001 From: Stephen Boyd Date: Mon, 2 Jul 2012 19:21:06 -0700 Subject: regulator: Fix recursive mutex lockdep warning A recursive lockdep warning occurs if you call regulator_set_optimum_mode() on a regulator with a supply because there is no nesting annotation for the rdev->mutex. To avoid this warning, get the supply's load before locking the regulator's mutex to avoid grabbing the same class of lock twice. ============================================= [ INFO: possible recursive locking detected ] 3.4.0 #3257 Tainted: G W --------------------------------------------- swapper/0/1 is trying to acquire lock: (&rdev->mutex){+.+.+.}, at: [] regulator_get_voltage+0x18/0x38 but task is already holding lock: (&rdev->mutex){+.+.+.}, at: [] regulator_set_optimum_mode+0x24/0x224 other info that might help us debug this: Possible unsafe locking scenario: CPU0 ---- lock(&rdev->mutex); lock(&rdev->mutex); *** DEADLOCK *** May be due to missing lock nesting notation 3 locks held by swapper/0/1: #0: (&__lockdep_no_validate__){......}, at: [] __driver_attach+0x40/0x8c #1: (&__lockdep_no_validate__){......}, at: [] __driver_attach+0x50/0x8c #2: (&rdev->mutex){+.+.+.}, at: [] regulator_set_optimum_mode+0x24/0x224 stack backtrace: [] (unwind_backtrace+0x0/0x12c) from [] (validate_chain+0x760/0x1080) [] (validate_chain+0x760/0x1080) from [] (__lock_acquire+0x950/0xa10) [] (__lock_acquire+0x950/0xa10) from [] (lock_acquire+0x18c/0x1e8) [] (lock_acquire+0x18c/0x1e8) from [] (mutex_lock_nested+0x68/0x3c4) [] (mutex_lock_nested+0x68/0x3c4) from [] (regulator_get_voltage+0x18/0x38) [] (regulator_get_voltage+0x18/0x38) from [] (regulator_set_optimum_mode+0xa4/0x224) ... Signed-off-by: Stephen Boyd Signed-off-by: Mark Brown --- drivers/regulator/core.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c index 09a737c868b5..8b4b3829d9e7 100644 --- a/drivers/regulator/core.c +++ b/drivers/regulator/core.c @@ -2519,9 +2519,12 @@ int regulator_set_optimum_mode(struct regulator *regulator, int uA_load) { struct regulator_dev *rdev = regulator->rdev; struct regulator *consumer; - int ret, output_uV, input_uV, total_uA_load = 0; + int ret, output_uV, input_uV = 0, total_uA_load = 0; unsigned int mode; + if (rdev->supply) + input_uV = regulator_get_voltage(rdev->supply); + mutex_lock(&rdev->mutex); /* @@ -2554,10 +2557,7 @@ int regulator_set_optimum_mode(struct regulator *regulator, int uA_load) goto out; } - /* get input voltage */ - input_uV = 0; - if (rdev->supply) - input_uV = regulator_get_voltage(rdev->supply); + /* No supply? Use constraint voltage */ if (input_uV <= 0) input_uV = rdev->constraints->input_uV; if (input_uV <= 0) { -- cgit v1.2.3-59-g8ed1b From f411930442e01f9cf1bf4df41ff7e89476575c4d Mon Sep 17 00:00:00 2001 From: Xiao Guangrong Date: Tue, 3 Jul 2012 14:31:01 +0800 Subject: KVM: fix fault page leak fault_page is forgot to be freed Signed-off-by: Xiao Guangrong Signed-off-by: Marcelo Tosatti --- virt/kvm/kvm_main.c | 1 + 1 file changed, 1 insertion(+) diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index e98a5cac55c4..44ee7124b16d 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -2845,6 +2845,7 @@ void kvm_exit(void) kvm_arch_hardware_unsetup(); kvm_arch_exit(); free_cpumask_var(cpus_hardware_enabled); + __free_page(fault_page); __free_page(hwpoison_page); __free_page(bad_page); } -- cgit v1.2.3-59-g8ed1b From 85b7059169e128c57a3a8a3e588fb89cb2031da1 Mon Sep 17 00:00:00 2001 From: Xiao Guangrong Date: Tue, 3 Jul 2012 14:31:43 +0800 Subject: KVM: MMU: fix shrinking page from the empty mmu Fix: [ 3190.059226] BUG: unable to handle kernel NULL pointer dereference at (null) [ 3190.062224] IP: [] mmu_page_zap_pte+0x10/0xa7 [kvm] [ 3190.063760] PGD 104f50067 PUD 112bea067 PMD 0 [ 3190.065309] Oops: 0000 [#1] SMP DEBUG_PAGEALLOC [ 3190.066860] CPU 1 [ ...... ] [ 3190.109629] Call Trace: [ 3190.111342] [] kvm_mmu_prepare_zap_page+0xa9/0x1fc [kvm] [ 3190.113091] [] mmu_shrink+0x11f/0x1f3 [kvm] [ 3190.114844] [] ? mmu_shrink+0x87/0x1f3 [kvm] [ 3190.116598] [] ? prune_super+0x142/0x154 [ 3190.118333] [] ? shrink_slab+0x39/0x31e [ 3190.120043] [] shrink_slab+0x1cc/0x31e [ 3190.121718] [] do_try_to_free_pages This is caused by shrinking page from the empty mmu, although we have checked n_used_mmu_pages, it is useless since the check is out of mmu-lock Signed-off-by: Xiao Guangrong Signed-off-by: Marcelo Tosatti --- arch/x86/kvm/mmu.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index be3cea4407ff..57e168e27b5b 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3934,6 +3934,9 @@ static void kvm_mmu_remove_some_alloc_mmu_pages(struct kvm *kvm, { struct kvm_mmu_page *page; + if (list_empty(&kvm->arch.active_mmu_pages)) + return; + page = container_of(kvm->arch.active_mmu_pages.prev, struct kvm_mmu_page, link); kvm_mmu_prepare_zap_page(kvm, page, invalid_list); -- cgit v1.2.3-59-g8ed1b From dab058fd5ff834cb3b9de1d930ce731a605eb0c6 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 3 Jul 2012 15:51:22 -0700 Subject: floppy: cancel any pending fd_timeouts before adding a new one In commit 070ad7e793dc ("floppy: convert to delayed work and single-thread wq") the 'fd_timeout' timer was converted to a delayed work. However, the "del_timer(&fd_timeout)" was lost in the process, and any previous pending timeouts would stay active when we then re-queued the timeout. This resulted in the floppy probe sequence having a (stale) 20s timeout rather than the intended 3s timeout, and thus made booting with the floppy driver (but no actual floppy controller) take much longer than it should. Of course, there's little reason for most people to compile the floppy driver into the kernel at all, which is why most people never noticed. Canceling the delayed work where we used to do the del_timer() fixes the issue, and makes the floppy probing use the proper new timeout instead. The three second timeout is still very wasteful, but better than the 20s one. Reported-and-tested-by: Andi Kleen Reported-and-tested-by: Calvin Walton Cc: Jiri Kosina Signed-off-by: Linus Torvalds --- drivers/block/floppy.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index cce7df367b79..553f43a90953 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -671,6 +671,7 @@ static void __reschedule_timeout(int drive, const char *message) if (drive == current_reqD) drive = current_drive; + __cancel_delayed_work(&fd_timeout); if (drive < 0 || drive >= N_DRIVE) { delay = 20UL * HZ; -- cgit v1.2.3-59-g8ed1b From 9fe79d7600497ed8a95c3981cbe5b73ab98222f0 Mon Sep 17 00:00:00 2001 From: Tyler Hicks Date: Tue, 12 Jun 2012 11:17:01 -0700 Subject: eCryptfs: Properly check for O_RDONLY flag before doing privileged open If the first attempt at opening the lower file read/write fails, eCryptfs will retry using a privileged kthread. However, the privileged retry should not happen if the lower file's inode is read-only because a read/write open will still be unsuccessful. The check for determining if the open should be retried was intended to be based on the access mode of the lower file's open flags being O_RDONLY, but the check was incorrectly performed. This would cause the open to be retried by the privileged kthread, resulting in a second failed open of the lower file. This patch corrects the check to determine if the open request should be handled by the privileged kthread. Signed-off-by: Tyler Hicks Reported-by: Dan Carpenter Acked-by: Dan Carpenter --- fs/ecryptfs/kthread.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ecryptfs/kthread.c b/fs/ecryptfs/kthread.c index 69f994a7d524..0dbe58a8b172 100644 --- a/fs/ecryptfs/kthread.c +++ b/fs/ecryptfs/kthread.c @@ -149,7 +149,7 @@ int ecryptfs_privileged_open(struct file **lower_file, (*lower_file) = dentry_open(lower_dentry, lower_mnt, flags, cred); if (!IS_ERR(*lower_file)) goto out; - if (flags & O_RDONLY) { + if ((flags & O_ACCMODE) == O_RDONLY) { rc = PTR_ERR((*lower_file)); goto out; } -- cgit v1.2.3-59-g8ed1b From 60d65f1f07a7d81d3eb3b91fc13fca80f2fdbb12 Mon Sep 17 00:00:00 2001 From: Tyler Hicks Date: Mon, 11 Jun 2012 10:21:34 -0700 Subject: eCryptfs: Fix lockdep warning in miscdev operations Don't grab the daemon mutex while holding the message context mutex. Addresses this lockdep warning: ecryptfsd/2141 is trying to acquire lock: (&ecryptfs_msg_ctx_arr[i].mux){+.+.+.}, at: [] ecryptfs_miscdev_read+0x143/0x470 [ecryptfs] but task is already holding lock: (&(*daemon)->mux){+.+...}, at: [] ecryptfs_miscdev_read+0x21c/0x470 [ecryptfs] which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&(*daemon)->mux){+.+...}: [] lock_acquire+0x9d/0x220 [] __mutex_lock_common+0x5a/0x4b0 [] mutex_lock_nested+0x44/0x50 [] ecryptfs_send_miscdev+0x97/0x120 [ecryptfs] [] ecryptfs_send_message+0x134/0x1e0 [ecryptfs] [] ecryptfs_generate_key_packet_set+0x2fe/0xa80 [ecryptfs] [] ecryptfs_write_metadata+0x108/0x250 [ecryptfs] [] ecryptfs_create+0x130/0x250 [ecryptfs] [] vfs_create+0xb4/0x120 [] do_last+0x8c5/0xa10 [] path_openat+0xd9/0x460 [] do_filp_open+0x42/0xa0 [] do_sys_open+0xf8/0x1d0 [] sys_open+0x21/0x30 [] system_call_fastpath+0x16/0x1b -> #0 (&ecryptfs_msg_ctx_arr[i].mux){+.+.+.}: [] __lock_acquire+0x1bf8/0x1c50 [] lock_acquire+0x9d/0x220 [] __mutex_lock_common+0x5a/0x4b0 [] mutex_lock_nested+0x44/0x50 [] ecryptfs_miscdev_read+0x143/0x470 [ecryptfs] [] vfs_read+0xb3/0x180 [] sys_read+0x4d/0x90 [] system_call_fastpath+0x16/0x1b Signed-off-by: Tyler Hicks --- fs/ecryptfs/miscdev.c | 25 +++++++++++++------------ 1 file changed, 13 insertions(+), 12 deletions(-) diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c index 3a06f4043df4..3c632ec412ec 100644 --- a/fs/ecryptfs/miscdev.c +++ b/fs/ecryptfs/miscdev.c @@ -191,31 +191,32 @@ int ecryptfs_send_miscdev(char *data, size_t data_size, struct ecryptfs_msg_ctx *msg_ctx, u8 msg_type, u16 msg_flags, struct ecryptfs_daemon *daemon) { - int rc = 0; + struct ecryptfs_message *msg; - mutex_lock(&msg_ctx->mux); - msg_ctx->msg = kmalloc((sizeof(*msg_ctx->msg) + data_size), - GFP_KERNEL); - if (!msg_ctx->msg) { - rc = -ENOMEM; + msg = kmalloc((sizeof(*msg) + data_size), GFP_KERNEL); + if (!msg) { printk(KERN_ERR "%s: Out of memory whilst attempting " "to kmalloc(%zd, GFP_KERNEL)\n", __func__, - (sizeof(*msg_ctx->msg) + data_size)); - goto out_unlock; + (sizeof(*msg) + data_size)); + return -ENOMEM; } + + mutex_lock(&msg_ctx->mux); + msg_ctx->msg = msg; msg_ctx->msg->index = msg_ctx->index; msg_ctx->msg->data_len = data_size; msg_ctx->type = msg_type; memcpy(msg_ctx->msg->data, data, data_size); msg_ctx->msg_size = (sizeof(*msg_ctx->msg) + data_size); - mutex_lock(&daemon->mux); list_add_tail(&msg_ctx->daemon_out_list, &daemon->msg_ctx_out_queue); + mutex_unlock(&msg_ctx->mux); + + mutex_lock(&daemon->mux); daemon->num_queued_msg_ctx++; wake_up_interruptible(&daemon->wait); mutex_unlock(&daemon->mux); -out_unlock: - mutex_unlock(&msg_ctx->mux); - return rc; + + return 0; } /* -- cgit v1.2.3-59-g8ed1b From 10684112c9d154172ac34e48a2ab68649e8f63ac Mon Sep 17 00:00:00 2001 From: NeilBrown Date: Wed, 4 Jul 2012 09:35:35 +1000 Subject: md/raid10: fix careless build error build error introduced by commit b357f04a67c2aeee8 That function doesn't get extra args until a later patch. Bother. Reported-by: Fengguang Wu Reported-by: Simon Kirby Reported-by: Tobias Klausmann Signed-off-by: NeilBrown --- drivers/md/raid10.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c index acf5a828c7e1..8da6282254c3 100644 --- a/drivers/md/raid10.c +++ b/drivers/md/raid10.c @@ -1394,7 +1394,7 @@ retry_write: bio_list_add(&conf->pending_bio_list, mbio); conf->pending_count++; spin_unlock_irqrestore(&conf->device_lock, flags); - if (!mddev_check_plugged(mddev, 0, 0)) + if (!mddev_check_plugged(mddev)) md_wakeup_thread(mddev->thread); if (!r10_bio->devs[i].repl_bio) -- cgit v1.2.3-59-g8ed1b From 3e5d3c35a68c9a933bdbdd8685bd1a205b57e806 Mon Sep 17 00:00:00 2001 From: Junxiao Bi Date: Wed, 27 Jun 2012 17:09:55 +0800 Subject: ocfs2: clear unaligned io flag when dio fails The unaligned io flag is set in the kiocb when an unaligned dio is issued, it should be cleared even when the dio fails, or it may affect the following io which are using the same kiocb. Signed-off-by: Junxiao Bi Cc: stable@vger.kernel.org Signed-off-by: Joel Becker --- fs/ocfs2/file.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c index 061591a3ab08..98513c8ed589 100644 --- a/fs/ocfs2/file.c +++ b/fs/ocfs2/file.c @@ -2422,8 +2422,10 @@ out_dio: unaligned_dio = 0; } - if (unaligned_dio) + if (unaligned_dio) { + ocfs2_iocb_clear_unaligned_aio(iocb); atomic_dec(&OCFS2_I(inode)->ip_unaligned_aio); + } out: if (rw_level != -1) -- cgit v1.2.3-59-g8ed1b From 16865b7c42fbce8a4d2b278460e387e719e289cb Mon Sep 17 00:00:00 2001 From: roel Date: Mon, 12 Dec 2011 23:40:51 +0100 Subject: ocfs2: Misplaced parens in unlikley Fix misplaced parentheses Signed-off-by: Roel Kluin Signed-off-by: Joel Becker --- fs/ocfs2/dlmglue.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 81a4cd22f80b..274529cce9c6 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -456,7 +456,7 @@ static void ocfs2_update_lock_stats(struct ocfs2_lock_res *res, int level, stats->ls_gets++; stats->ls_total += ktime_to_ns(kt); /* overflow */ - if (unlikely(stats->ls_gets) == 0) { + if (unlikely(stats->ls_gets == 0)) { stats->ls_gets++; stats->ls_total = ktime_to_ns(kt); } -- cgit v1.2.3-59-g8ed1b From a75e9ccabd925d16954739bd977c54695c9310d0 Mon Sep 17 00:00:00 2001 From: Srinivas Eeda Date: Mon, 30 Jan 2012 21:51:22 -0800 Subject: ocfs2: use spinlock irqsave for downconvert lock.patch When ocfs2dc thread holds dc_task_lock spinlock and receives soft IRQ it deadlock itself trying to get same spinlock in ocfs2_wake_downconvert_thread. Below is the stack snippet. The patch disables interrupts when acquiring dc_task_lock spinlock. ocfs2_wake_downconvert_thread ocfs2_rw_unlock ocfs2_dio_end_io dio_complete ..... bio_endio req_bio_endio .... scsi_io_completion blk_done_softirq __do_softirq do_softirq irq_exit do_IRQ ocfs2_downconvert_thread [kthread] Signed-off-by: Srinivas Eeda Signed-off-by: Joel Becker --- fs/ocfs2/dlmglue.c | 31 +++++++++++++++++++------------ 1 file changed, 19 insertions(+), 12 deletions(-) diff --git a/fs/ocfs2/dlmglue.c b/fs/ocfs2/dlmglue.c index 274529cce9c6..4f7795fb5fc0 100644 --- a/fs/ocfs2/dlmglue.c +++ b/fs/ocfs2/dlmglue.c @@ -3932,6 +3932,8 @@ unqueue: static void ocfs2_schedule_blocked_lock(struct ocfs2_super *osb, struct ocfs2_lock_res *lockres) { + unsigned long flags; + assert_spin_locked(&lockres->l_lock); if (lockres->l_flags & OCFS2_LOCK_FREEING) { @@ -3945,21 +3947,22 @@ static void ocfs2_schedule_blocked_lock(struct ocfs2_super *osb, lockres_or_flags(lockres, OCFS2_LOCK_QUEUED); - spin_lock(&osb->dc_task_lock); + spin_lock_irqsave(&osb->dc_task_lock, flags); if (list_empty(&lockres->l_blocked_list)) { list_add_tail(&lockres->l_blocked_list, &osb->blocked_lock_list); osb->blocked_lock_count++; } - spin_unlock(&osb->dc_task_lock); + spin_unlock_irqrestore(&osb->dc_task_lock, flags); } static void ocfs2_downconvert_thread_do_work(struct ocfs2_super *osb) { unsigned long processed; + unsigned long flags; struct ocfs2_lock_res *lockres; - spin_lock(&osb->dc_task_lock); + spin_lock_irqsave(&osb->dc_task_lock, flags); /* grab this early so we know to try again if a state change and * wake happens part-way through our work */ osb->dc_work_sequence = osb->dc_wake_sequence; @@ -3972,38 +3975,40 @@ static void ocfs2_downconvert_thread_do_work(struct ocfs2_super *osb) struct ocfs2_lock_res, l_blocked_list); list_del_init(&lockres->l_blocked_list); osb->blocked_lock_count--; - spin_unlock(&osb->dc_task_lock); + spin_unlock_irqrestore(&osb->dc_task_lock, flags); BUG_ON(!processed); processed--; ocfs2_process_blocked_lock(osb, lockres); - spin_lock(&osb->dc_task_lock); + spin_lock_irqsave(&osb->dc_task_lock, flags); } - spin_unlock(&osb->dc_task_lock); + spin_unlock_irqrestore(&osb->dc_task_lock, flags); } static int ocfs2_downconvert_thread_lists_empty(struct ocfs2_super *osb) { int empty = 0; + unsigned long flags; - spin_lock(&osb->dc_task_lock); + spin_lock_irqsave(&osb->dc_task_lock, flags); if (list_empty(&osb->blocked_lock_list)) empty = 1; - spin_unlock(&osb->dc_task_lock); + spin_unlock_irqrestore(&osb->dc_task_lock, flags); return empty; } static int ocfs2_downconvert_thread_should_wake(struct ocfs2_super *osb) { int should_wake = 0; + unsigned long flags; - spin_lock(&osb->dc_task_lock); + spin_lock_irqsave(&osb->dc_task_lock, flags); if (osb->dc_work_sequence != osb->dc_wake_sequence) should_wake = 1; - spin_unlock(&osb->dc_task_lock); + spin_unlock_irqrestore(&osb->dc_task_lock, flags); return should_wake; } @@ -4033,10 +4038,12 @@ static int ocfs2_downconvert_thread(void *arg) void ocfs2_wake_downconvert_thread(struct ocfs2_super *osb) { - spin_lock(&osb->dc_task_lock); + unsigned long flags; + + spin_lock_irqsave(&osb->dc_task_lock, flags); /* make sure the voting thread gets a swipe at whatever changes * the caller may have made to the voting state */ osb->dc_wake_sequence++; - spin_unlock(&osb->dc_task_lock); + spin_unlock_irqrestore(&osb->dc_task_lock, flags); wake_up(&osb->dc_event); } -- cgit v1.2.3-59-g8ed1b From 65622e647bfff3ed89f95576ec120693ed4085a6 Mon Sep 17 00:00:00 2001 From: Jeff Liu Date: Thu, 9 Feb 2012 14:42:22 +0800 Subject: ocfs2: for SEEK_DATA/SEEK_HOLE, return internal error unchanged if ocfs2_get_clusters_nocache() or ocfs2_inode_lock() call failed. Hello, Since ENXIO only means "offset beyond EOF" for SEEK_DATA/SEEK_HOLE, Hence we should return the internal error unchanged if ocfs2_inode_lock() or ocfs2_get_clusters_nocache() call failed rather than ENXIO. Otherwise, it will confuse the user applications when they trying to understand the root cause. Thanks Dave for pointing this out. Thanks, -Jeff Cc: Dave Chinner Signed-off-by: Jie Liu Signed-off-by: Joel Becker --- fs/ocfs2/extent_map.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c index 2f5b92ef0e53..70b5863a2d64 100644 --- a/fs/ocfs2/extent_map.c +++ b/fs/ocfs2/extent_map.c @@ -923,8 +923,6 @@ out_unlock: ocfs2_inode_unlock(inode, 0); out: - if (ret && ret != -ENXIO) - ret = -ENXIO; return ret; } -- cgit v1.2.3-59-g8ed1b From a4564ead763a9264edbec6d4e72aa273f05eb39c Mon Sep 17 00:00:00 2001 From: Jan Kara Date: Fri, 10 Feb 2012 10:50:07 +0100 Subject: ocfs2: Fix bogus error message from ocfs2_global_read_info 'status' variable in ocfs2_global_read_info() is always != 0 when leaving the function because it happens to contain number of read bytes. Thus we always log error message although everything is OK. Since all error cases properly call mlog_errno() before jumping to out_err, there's no reason to call mlog_errno() on exit at all. This is a fallout of c1e8d35e (conversion of mlog_exit() calls). Signed-off-by: Jan Kara Signed-off-by: Joel Becker --- fs/ocfs2/quota_global.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/fs/ocfs2/quota_global.c b/fs/ocfs2/quota_global.c index 92fcd575775a..0a86e302655f 100644 --- a/fs/ocfs2/quota_global.c +++ b/fs/ocfs2/quota_global.c @@ -399,8 +399,6 @@ int ocfs2_global_read_info(struct super_block *sb, int type) msecs_to_jiffies(oinfo->dqi_syncms)); out_err: - if (status) - mlog_errno(status); return status; out_unlock: ocfs2_unlock_global_qf(oinfo, 0); -- cgit v1.2.3-59-g8ed1b From c520c921eacdced7e2095ba6cbbb9921906c7b67 Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Mon, 2 Jul 2012 11:30:34 +0200 Subject: ARM: imx: assert SCC gate stays enabled MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The SCC clock is needed in internal boot mode and so must keep enabled. This same issue was fixed for the pre-common-clk code in commit 3d6e614 (mx35: Fix boot ROM hang in internal boot mode) Cc: John Ogness Cc: Hans J. Koch Signed-off-by: Uwe Kleine-König Signed-off-by: Sascha Hauer --- arch/arm/mach-imx/clk-imx35.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-imx/clk-imx35.c b/arch/arm/mach-imx/clk-imx35.c index 920a8cc42726..c6422fb10bae 100644 --- a/arch/arm/mach-imx/clk-imx35.c +++ b/arch/arm/mach-imx/clk-imx35.c @@ -201,7 +201,6 @@ int __init mx35_clocks_init() pr_err("i.MX35 clk %d: register failed with %ld\n", i, PTR_ERR(clk[i])); - clk_register_clkdev(clk[pata_gate], NULL, "pata_imx"); clk_register_clkdev(clk[can1_gate], NULL, "flexcan.0"); clk_register_clkdev(clk[can2_gate], NULL, "flexcan.1"); @@ -264,6 +263,14 @@ int __init mx35_clocks_init() clk_prepare_enable(clk[iim_gate]); clk_prepare_enable(clk[emi_gate]); + /* + * SCC is needed to boot via mmc after a watchdog reset. The clock code + * before conversion to common clk also enabled UART1 (which isn't + * handled here and not needed for mmc) and IIM (which is enabled + * unconditionally above). + */ + clk_prepare_enable(clk[scc_gate]); + imx_print_silicon_rev("i.MX35", mx35_revision()); #ifdef CONFIG_MXC_USE_EPIT -- cgit v1.2.3-59-g8ed1b From d50394266b340d930a7458fa669d36e99670f200 Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Sun, 1 Jul 2012 11:31:35 +0300 Subject: remoteproc/omap: fix randconfig unmet direct dependencies OMAP_REMOTEPROC selects REMOTEPROC and RPMSG, both of which depend on EXPERIMENTAL, so let's have OMAP_REMOTEPROC depend on EXPERIMENTAL too, in order to avoid the below randconfig warnings. warning: (OMAP_REMOTEPROC) selects REMOTEPROC which has unmet direct dependencies (EXPERIMENTAL) warning: (OMAP_REMOTEPROC) selects RPMSG which has unmet direct dependencies (EXPERIMENTAL) Cc: stable Reported-by: Tony Lindgren Signed-off-by: Ohad Ben-Cohen --- drivers/remoteproc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig index 24d880e78ec6..db4e39b9164a 100644 --- a/drivers/remoteproc/Kconfig +++ b/drivers/remoteproc/Kconfig @@ -7,6 +7,7 @@ config REMOTEPROC config OMAP_REMOTEPROC tristate "OMAP remoteproc support" + depends on EXPERIMENTAL depends on ARCH_OMAP4 depends on OMAP_IOMMU select REMOTEPROC -- cgit v1.2.3-59-g8ed1b From fb31fbeb647ed1910290712c13f11f1db09e5506 Mon Sep 17 00:00:00 2001 From: Alexander Holler Date: Tue, 3 Jul 2012 14:35:47 +0800 Subject: leds: heartbeat: fix bug on panic With commit 49dca5aebfdeadd4bf27b6cb4c60392147dc35a4 I introduced a bug (visible if CONFIG_PROVE_RCU is enabled) which occures when a panic has happened: [ 1526.520230] =============================== [ 1526.520230] [ INFO: suspicious RCU usage. ] [ 1526.520230] 3.5.0-rc1+ #12 Not tainted [ 1526.520230] ------------------------------- [ 1526.520230] /c/kernel-tests/mm/include/linux/rcupdate.h:436 Illegal context switch in RCU read-side critical section! [ 1526.520230] [ 1526.520230] other info that might help us debug this: [ 1526.520230] [ 1526.520230] [ 1526.520230] rcu_scheduler_active = 1, debug_locks = 0 [ 1526.520230] 3 locks held by net.agent/3279: [ 1526.520230] #0: (&mm->mmap_sem){++++++}, at: [] do_page_fault+0x193/0x390 [ 1526.520230] #1: (panic_lock){+.+...}, at: [] panic+0x37/0x1d3 [ 1526.520230] #2: (rcu_read_lock){.+.+..}, at: [] rcu_lock_acquire+0x0/0x29 [ 1526.520230] [ 1526.520230] stack backtrace: [ 1526.520230] Pid: 3279, comm: net.agent Not tainted 3.5.0-rc1+ #12 [ 1526.520230] Call Trace: [ 1526.520230] [] lockdep_rcu_suspicious+0x109/0x112 [ 1526.520230] [] rcu_preempt_sleep_check+0x45/0x47 [ 1526.520230] [] __might_sleep+0x1e/0x19a [ 1526.520230] [] down_write+0x26/0x81 [ 1526.520230] [] led_trigger_unregister+0x1f/0x9c [ 1526.520230] [] heartbeat_reboot_notifier+0x15/0x19 [ 1526.520230] [] notifier_call_chain+0x96/0xcd [ 1526.520230] [] __atomic_notifier_call_chain+0x8e/0xff [ 1526.520230] [] ? kmsg_dump+0x37/0x1eb [ 1526.520230] [] atomic_notifier_call_chain+0x14/0x16 [ 1526.520230] [] panic+0xe8/0x1d3 [ 1526.520230] [] out_of_memory+0x15d/0x1d3 So in case of a panic, now just turn of the LED. Other approaches like scheduling a work to unregister the trigger aren't working because there isn't much which still runs after a panic occured (except timers). Signed-off-by: Alexander Holler Signed-off-by: Bryan Wu --- drivers/leds/ledtrig-heartbeat.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) diff --git a/drivers/leds/ledtrig-heartbeat.c b/drivers/leds/ledtrig-heartbeat.c index 41dc76db4311..a019fbb70880 100644 --- a/drivers/leds/ledtrig-heartbeat.c +++ b/drivers/leds/ledtrig-heartbeat.c @@ -21,6 +21,8 @@ #include #include "leds.h" +static int panic_heartbeats; + struct heartbeat_trig_data { unsigned int phase; unsigned int period; @@ -34,6 +36,11 @@ static void led_heartbeat_function(unsigned long data) unsigned long brightness = LED_OFF; unsigned long delay = 0; + if (unlikely(panic_heartbeats)) { + led_set_brightness(led_cdev, LED_OFF); + return; + } + /* acts like an actual heart beat -- ie thump-thump-pause... */ switch (heartbeat_data->phase) { case 0: @@ -111,12 +118,19 @@ static int heartbeat_reboot_notifier(struct notifier_block *nb, return NOTIFY_DONE; } +static int heartbeat_panic_notifier(struct notifier_block *nb, + unsigned long code, void *unused) +{ + panic_heartbeats = 1; + return NOTIFY_DONE; +} + static struct notifier_block heartbeat_reboot_nb = { .notifier_call = heartbeat_reboot_notifier, }; static struct notifier_block heartbeat_panic_nb = { - .notifier_call = heartbeat_reboot_notifier, + .notifier_call = heartbeat_panic_notifier, }; static int __init heartbeat_trig_init(void) -- cgit v1.2.3-59-g8ed1b From c12a3cb9dca96768a5f048bb50f3395216346bda Mon Sep 17 00:00:00 2001 From: Paul Bolle Date: Mon, 2 Jul 2012 23:40:14 +0200 Subject: ARM: mmp: remove mach/gpio-pxa.h Commit 157d2644cb0c1e71a18baaffca56d2b1d0ebf10f ("ARM: pxa: change gpio to platform device") removed all includes of mach/gpio-pxa.h. It kept this unused header in the tree. Using it can't work, as it itself includes the non-existent header plat/gpio-pxa.h. This header can safely be removed. Signed-off-by: Paul Bolle Acked-by: Eric Miao Signed-off-by: Haojian Zhuang --- arch/arm/mach-mmp/include/mach/gpio-pxa.h | 29 ----------------------------- 1 file changed, 29 deletions(-) delete mode 100644 arch/arm/mach-mmp/include/mach/gpio-pxa.h diff --git a/arch/arm/mach-mmp/include/mach/gpio-pxa.h b/arch/arm/mach-mmp/include/mach/gpio-pxa.h deleted file mode 100644 index 0e135a599f3e..000000000000 --- a/arch/arm/mach-mmp/include/mach/gpio-pxa.h +++ /dev/null @@ -1,29 +0,0 @@ -#ifndef __ASM_MACH_GPIO_PXA_H -#define __ASM_MACH_GPIO_PXA_H - -#include -#include -#include - -#define GPIO_REGS_VIRT (APB_VIRT_BASE + 0x19000) - -#define BANK_OFF(n) (((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2)) -#define GPIO_REG(x) (*(volatile u32 *)(GPIO_REGS_VIRT + (x))) - -#define gpio_to_bank(gpio) ((gpio) >> 5) - -/* NOTE: these macros are defined here to make optimization of - * gpio_{get,set}_value() to work when 'gpio' is a constant. - * Usage of these macros otherwise is no longer recommended, - * use generic GPIO API whenever possible. - */ -#define GPIO_bit(gpio) (1 << ((gpio) & 0x1f)) - -#define GPLR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x00) -#define GPDR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x0c) -#define GPSR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x18) -#define GPCR(x) GPIO_REG(BANK_OFF(gpio_to_bank(x)) + 0x24) - -#include - -#endif /* __ASM_MACH_GPIO_PXA_H */ -- cgit v1.2.3-59-g8ed1b From e121aefa7d9f10eee5cf26ed47129237a05d940b Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Sun, 1 Jul 2012 11:53:36 +0300 Subject: remoteproc: fix missing CONFIG_FW_LOADER configurations Remoteproc requires user space firmware loading support, so let's select FW_LOADER explicitly to avoid painful misconfigurations (which only show up in runtime). Cc: stable Reported-by: Mark Grosen Signed-off-by: Ohad Ben-Cohen --- drivers/remoteproc/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig index db4e39b9164a..f8d818abf98c 100644 --- a/drivers/remoteproc/Kconfig +++ b/drivers/remoteproc/Kconfig @@ -4,6 +4,7 @@ menu "Remoteproc drivers (EXPERIMENTAL)" config REMOTEPROC tristate depends on EXPERIMENTAL + select FW_CONFIG config OMAP_REMOTEPROC tristate "OMAP remoteproc support" -- cgit v1.2.3-59-g8ed1b From 1e0c1ce00d83834d03f4d8d039734ca4703298df Mon Sep 17 00:00:00 2001 From: Andrew Lunn Date: Fri, 29 Jun 2012 09:25:58 +0200 Subject: ARM: Orion: Fix WDT compile for Dove and MV78xx0 Commit 0fa1f0609a0c1fe8b2be3c0089a2cb48f7fda521 (ARM: Orion: Fix Virtual/Physical mixup with watchdog) broke the Dove & MV78xx0 build. Although these two SoC don't use the watchdog, the shared platform code still needs to build. Add the necessary defines. Cc: stable@vger.kernel.org Reported-by: Nicolas Pitre Signed-off-by: Andrew Lunn Tested-by: Nicolas Pitre Signed-off-by: Arnd Bergmann --- arch/arm/mach-dove/include/mach/bridge-regs.h | 1 + arch/arm/mach-dove/include/mach/dove.h | 1 + arch/arm/mach-mv78xx0/include/mach/bridge-regs.h | 1 + arch/arm/mach-mv78xx0/include/mach/mv78xx0.h | 2 ++ 4 files changed, 5 insertions(+) diff --git a/arch/arm/mach-dove/include/mach/bridge-regs.h b/arch/arm/mach-dove/include/mach/bridge-regs.h index 226949dc4ac0..f953bb54aa9d 100644 --- a/arch/arm/mach-dove/include/mach/bridge-regs.h +++ b/arch/arm/mach-dove/include/mach/bridge-regs.h @@ -50,5 +50,6 @@ #define POWER_MANAGEMENT (BRIDGE_VIRT_BASE | 0x011c) #define TIMER_VIRT_BASE (BRIDGE_VIRT_BASE | 0x0300) +#define TIMER_PHYS_BASE (BRIDGE_PHYS_BASE | 0x0300) #endif diff --git a/arch/arm/mach-dove/include/mach/dove.h b/arch/arm/mach-dove/include/mach/dove.h index ad1165d488c1..d52b0ef313b7 100644 --- a/arch/arm/mach-dove/include/mach/dove.h +++ b/arch/arm/mach-dove/include/mach/dove.h @@ -78,6 +78,7 @@ /* North-South Bridge */ #define BRIDGE_VIRT_BASE (DOVE_SB_REGS_VIRT_BASE | 0x20000) +#define BRIDGE_PHYS_BASE (DOVE_SB_REGS_PHYS_BASE | 0x20000) /* Cryptographic Engine */ #define DOVE_CRYPT_PHYS_BASE (DOVE_SB_REGS_PHYS_BASE | 0x30000) diff --git a/arch/arm/mach-mv78xx0/include/mach/bridge-regs.h b/arch/arm/mach-mv78xx0/include/mach/bridge-regs.h index c64dbb96dbad..eb187e0e059b 100644 --- a/arch/arm/mach-mv78xx0/include/mach/bridge-regs.h +++ b/arch/arm/mach-mv78xx0/include/mach/bridge-regs.h @@ -31,5 +31,6 @@ #define IRQ_MASK_HIGH_OFF 0x0014 #define TIMER_VIRT_BASE (BRIDGE_VIRT_BASE | 0x0300) +#define TIMER_PHYS_BASE (BRIDGE_PHYS_BASE | 0x0300) #endif diff --git a/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h b/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h index 3674497162e3..e807c4c52a0b 100644 --- a/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h +++ b/arch/arm/mach-mv78xx0/include/mach/mv78xx0.h @@ -42,6 +42,7 @@ #define MV78XX0_CORE0_REGS_PHYS_BASE 0xf1020000 #define MV78XX0_CORE1_REGS_PHYS_BASE 0xf1024000 #define MV78XX0_CORE_REGS_VIRT_BASE 0xfe400000 +#define MV78XX0_CORE_REGS_PHYS_BASE 0xfe400000 #define MV78XX0_CORE_REGS_SIZE SZ_16K #define MV78XX0_PCIE_IO_PHYS_BASE(i) (0xf0800000 + ((i) << 20)) @@ -59,6 +60,7 @@ * Core-specific peripheral registers. */ #define BRIDGE_VIRT_BASE (MV78XX0_CORE_REGS_VIRT_BASE) +#define BRIDGE_PHYS_BASE (MV78XX0_CORE_REGS_PHYS_BASE) /* * Register Map -- cgit v1.2.3-59-g8ed1b From 5a081caa0414b9bbb82c17ffab9d6fe66edbb72f Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Wed, 6 Jun 2012 10:09:25 +0300 Subject: rpmsg: avoid premature deallocation of endpoints When an inbound message arrives, the rpmsg core looks up its associated endpoint and invokes the registered callback. If a message arrives while its endpoint is being removed (because the rpmsg driver was removed, or a recovery of a remote processor has kicked in) we must ensure atomicity, i.e.: - Either the ept is removed before it is found or - The ept is found but will not be freed until the callback returns This is achieved by maintaining a per-ept reference count, which, when drops to zero, will trigger deallocation of the ept. With this in hand, it is now forbidden to directly deallocate epts once they have been added to the endpoints idr. Cc: stable Reported-by: Fernando Guzman Lugo Signed-off-by: Ohad Ben-Cohen --- drivers/rpmsg/virtio_rpmsg_bus.c | 36 ++++++++++++++++++++++++++++++++++-- include/linux/rpmsg.h | 3 +++ 2 files changed, 37 insertions(+), 2 deletions(-) diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c index 75506ec2840e..9623327ba509 100644 --- a/drivers/rpmsg/virtio_rpmsg_bus.c +++ b/drivers/rpmsg/virtio_rpmsg_bus.c @@ -188,6 +188,26 @@ static int rpmsg_uevent(struct device *dev, struct kobj_uevent_env *env) rpdev->id.name); } +/** + * __ept_release() - deallocate an rpmsg endpoint + * @kref: the ept's reference count + * + * This function deallocates an ept, and is invoked when its @kref refcount + * drops to zero. + * + * Never invoke this function directly! + */ +static void __ept_release(struct kref *kref) +{ + struct rpmsg_endpoint *ept = container_of(kref, struct rpmsg_endpoint, + refcount); + /* + * At this point no one holds a reference to ept anymore, + * so we can directly free it + */ + kfree(ept); +} + /* for more info, see below documentation of rpmsg_create_ept() */ static struct rpmsg_endpoint *__rpmsg_create_ept(struct virtproc_info *vrp, struct rpmsg_channel *rpdev, rpmsg_rx_cb_t cb, @@ -206,6 +226,8 @@ static struct rpmsg_endpoint *__rpmsg_create_ept(struct virtproc_info *vrp, return NULL; } + kref_init(&ept->refcount); + ept->rpdev = rpdev; ept->cb = cb; ept->priv = priv; @@ -238,7 +260,7 @@ rem_idr: idr_remove(&vrp->endpoints, request); free_ept: mutex_unlock(&vrp->endpoints_lock); - kfree(ept); + kref_put(&ept->refcount, __ept_release); return NULL; } @@ -306,7 +328,7 @@ __rpmsg_destroy_ept(struct virtproc_info *vrp, struct rpmsg_endpoint *ept) idr_remove(&vrp->endpoints, ept->addr); mutex_unlock(&vrp->endpoints_lock); - kfree(ept); + kref_put(&ept->refcount, __ept_release); } /** @@ -790,7 +812,13 @@ static void rpmsg_recv_done(struct virtqueue *rvq) /* use the dst addr to fetch the callback of the appropriate user */ mutex_lock(&vrp->endpoints_lock); + ept = idr_find(&vrp->endpoints, msg->dst); + + /* let's make sure no one deallocates ept while we use it */ + if (ept) + kref_get(&ept->refcount); + mutex_unlock(&vrp->endpoints_lock); if (ept && ept->cb) @@ -798,6 +826,10 @@ static void rpmsg_recv_done(struct virtqueue *rvq) else dev_warn(dev, "msg received with no recepient\n"); + /* farewell, ept, we don't need you anymore */ + if (ept) + kref_put(&ept->refcount, __ept_release); + /* publish the real size of the buffer */ sg_init_one(&sg, msg, RPMSG_BUF_SIZE); diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h index a8e50e44203c..195f373590b8 100644 --- a/include/linux/rpmsg.h +++ b/include/linux/rpmsg.h @@ -38,6 +38,7 @@ #include #include #include +#include /* The feature bitmap for virtio rpmsg */ #define VIRTIO_RPMSG_F_NS 0 /* RP supports name service notifications */ @@ -120,6 +121,7 @@ typedef void (*rpmsg_rx_cb_t)(struct rpmsg_channel *, void *, int, void *, u32); /** * struct rpmsg_endpoint - binds a local rpmsg address to its user * @rpdev: rpmsg channel device + * @refcount: when this drops to zero, the ept is deallocated * @cb: rx callback handler * @addr: local rpmsg address * @priv: private data for the driver's use @@ -140,6 +142,7 @@ typedef void (*rpmsg_rx_cb_t)(struct rpmsg_channel *, void *, int, void *, u32); */ struct rpmsg_endpoint { struct rpmsg_channel *rpdev; + struct kref refcount; rpmsg_rx_cb_t cb; u32 addr; void *priv; -- cgit v1.2.3-59-g8ed1b From 15fd943af50dbc5f7f4de33835795c72595f7bf4 Mon Sep 17 00:00:00 2001 From: Ohad Ben-Cohen Date: Thu, 7 Jun 2012 15:39:35 +0300 Subject: rpmsg: make sure inflight messages don't invoke just-removed callbacks When inbound messages arrive, rpmsg core looks up their associated endpoint (by destination address) and then invokes their callback. We've made sure that endpoints will never be de-allocated after they were found by rpmsg core, but we also need to protect against the (rare) scenario where the rpmsg driver was just removed, and its callback function isn't available anymore. This is achieved by introducing a callback mutex, which must be taken before the callback is invoked, and, obviously, before it is removed. Cc: stable Reported-by: Fernando Guzman Lugo Signed-off-by: Ohad Ben-Cohen --- drivers/rpmsg/virtio_rpmsg_bus.c | 25 +++++++++++++++++++------ include/linux/rpmsg.h | 3 +++ 2 files changed, 22 insertions(+), 6 deletions(-) diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c index 9623327ba509..39d3aa41adda 100644 --- a/drivers/rpmsg/virtio_rpmsg_bus.c +++ b/drivers/rpmsg/virtio_rpmsg_bus.c @@ -227,6 +227,7 @@ static struct rpmsg_endpoint *__rpmsg_create_ept(struct virtproc_info *vrp, } kref_init(&ept->refcount); + mutex_init(&ept->cb_lock); ept->rpdev = rpdev; ept->cb = cb; @@ -324,10 +325,16 @@ EXPORT_SYMBOL(rpmsg_create_ept); static void __rpmsg_destroy_ept(struct virtproc_info *vrp, struct rpmsg_endpoint *ept) { + /* make sure new inbound messages can't find this ept anymore */ mutex_lock(&vrp->endpoints_lock); idr_remove(&vrp->endpoints, ept->addr); mutex_unlock(&vrp->endpoints_lock); + /* make sure in-flight inbound messages won't invoke cb anymore */ + mutex_lock(&ept->cb_lock); + ept->cb = NULL; + mutex_unlock(&ept->cb_lock); + kref_put(&ept->refcount, __ept_release); } @@ -821,14 +828,20 @@ static void rpmsg_recv_done(struct virtqueue *rvq) mutex_unlock(&vrp->endpoints_lock); - if (ept && ept->cb) - ept->cb(ept->rpdev, msg->data, msg->len, ept->priv, msg->src); - else - dev_warn(dev, "msg received with no recepient\n"); + if (ept) { + /* make sure ept->cb doesn't go away while we use it */ + mutex_lock(&ept->cb_lock); - /* farewell, ept, we don't need you anymore */ - if (ept) + if (ept->cb) + ept->cb(ept->rpdev, msg->data, msg->len, ept->priv, + msg->src); + + mutex_unlock(&ept->cb_lock); + + /* farewell, ept, we don't need you anymore */ kref_put(&ept->refcount, __ept_release); + } else + dev_warn(dev, "msg received with no recepient\n"); /* publish the real size of the buffer */ sg_init_one(&sg, msg, RPMSG_BUF_SIZE); diff --git a/include/linux/rpmsg.h b/include/linux/rpmsg.h index 195f373590b8..82a673905edb 100644 --- a/include/linux/rpmsg.h +++ b/include/linux/rpmsg.h @@ -39,6 +39,7 @@ #include #include #include +#include /* The feature bitmap for virtio rpmsg */ #define VIRTIO_RPMSG_F_NS 0 /* RP supports name service notifications */ @@ -123,6 +124,7 @@ typedef void (*rpmsg_rx_cb_t)(struct rpmsg_channel *, void *, int, void *, u32); * @rpdev: rpmsg channel device * @refcount: when this drops to zero, the ept is deallocated * @cb: rx callback handler + * @cb_lock: must be taken before accessing/changing @cb * @addr: local rpmsg address * @priv: private data for the driver's use * @@ -144,6 +146,7 @@ struct rpmsg_endpoint { struct rpmsg_channel *rpdev; struct kref refcount; rpmsg_rx_cb_t cb; + struct mutex cb_lock; u32 addr; void *priv; }; -- cgit v1.2.3-59-g8ed1b From b0a70cc80e754f5ad7d83c96e005fa1d5cb83514 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Wed, 4 Jul 2012 06:55:29 -0600 Subject: ARM: OMAP4: hwmod data: temporarily comment out data for the usb_host_fs and aess IP blocks MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The OMAP4 usb_host_fs (OHCI) and AESS IP blocks require some special programming for them to enter idle. Without this programming, they will prevent the rest of the chip from entering full chip idle. To implement the idle programming cleanly, this will take some coordination between maintainers. This is likely to take some time, so it is probably best to leave this for 3.6 or 3.7. So, in the meantime, prevent these IP blocks from being registered. Later, once the appropriate support is available, this patch can be reverted. This second version comments out the IP block data since Benoît didn't like removing it. Signed-off-by: Paul Walmsley Cc: Benoît Cousson --- arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 20 ++++++++++---------- 1 file changed, 10 insertions(+), 10 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index f30e861ce6d9..0a1b24702091 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -3864,7 +3864,7 @@ static struct omap_hwmod_ocp_if omap44xx_l4_cfg__l3_main_2 = { }; /* usb_host_fs -> l3_main_2 */ -static struct omap_hwmod_ocp_if omap44xx_usb_host_fs__l3_main_2 = { +static struct omap_hwmod_ocp_if __maybe_unused omap44xx_usb_host_fs__l3_main_2 = { .master = &omap44xx_usb_host_fs_hwmod, .slave = &omap44xx_l3_main_2_hwmod, .clk = "l3_div_ck", @@ -3922,7 +3922,7 @@ static struct omap_hwmod_ocp_if omap44xx_l4_cfg__l3_main_3 = { }; /* aess -> l4_abe */ -static struct omap_hwmod_ocp_if omap44xx_aess__l4_abe = { +static struct omap_hwmod_ocp_if __maybe_unused omap44xx_aess__l4_abe = { .master = &omap44xx_aess_hwmod, .slave = &omap44xx_l4_abe_hwmod, .clk = "ocp_abe_iclk", @@ -4013,7 +4013,7 @@ static struct omap_hwmod_addr_space omap44xx_aess_addrs[] = { }; /* l4_abe -> aess */ -static struct omap_hwmod_ocp_if omap44xx_l4_abe__aess = { +static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_abe__aess = { .master = &omap44xx_l4_abe_hwmod, .slave = &omap44xx_aess_hwmod, .clk = "ocp_abe_iclk", @@ -4031,7 +4031,7 @@ static struct omap_hwmod_addr_space omap44xx_aess_dma_addrs[] = { }; /* l4_abe -> aess (dma) */ -static struct omap_hwmod_ocp_if omap44xx_l4_abe__aess_dma = { +static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_abe__aess_dma = { .master = &omap44xx_l4_abe_hwmod, .slave = &omap44xx_aess_hwmod, .clk = "ocp_abe_iclk", @@ -5857,7 +5857,7 @@ static struct omap_hwmod_addr_space omap44xx_usb_host_fs_addrs[] = { }; /* l4_cfg -> usb_host_fs */ -static struct omap_hwmod_ocp_if omap44xx_l4_cfg__usb_host_fs = { +static struct omap_hwmod_ocp_if __maybe_unused omap44xx_l4_cfg__usb_host_fs = { .master = &omap44xx_l4_cfg_hwmod, .slave = &omap44xx_usb_host_fs_hwmod, .clk = "l4_div_ck", @@ -6014,13 +6014,13 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = { &omap44xx_iva__l3_main_2, &omap44xx_l3_main_1__l3_main_2, &omap44xx_l4_cfg__l3_main_2, - &omap44xx_usb_host_fs__l3_main_2, + /* &omap44xx_usb_host_fs__l3_main_2, */ &omap44xx_usb_host_hs__l3_main_2, &omap44xx_usb_otg_hs__l3_main_2, &omap44xx_l3_main_1__l3_main_3, &omap44xx_l3_main_2__l3_main_3, &omap44xx_l4_cfg__l3_main_3, - &omap44xx_aess__l4_abe, + /* &omap44xx_aess__l4_abe, */ &omap44xx_dsp__l4_abe, &omap44xx_l3_main_1__l4_abe, &omap44xx_mpu__l4_abe, @@ -6029,8 +6029,8 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = { &omap44xx_l4_cfg__l4_wkup, &omap44xx_mpu__mpu_private, &omap44xx_l4_cfg__ocp_wp_noc, - &omap44xx_l4_abe__aess, - &omap44xx_l4_abe__aess_dma, + /* &omap44xx_l4_abe__aess, */ + /* &omap44xx_l4_abe__aess_dma, */ &omap44xx_l3_main_2__c2c, &omap44xx_l4_wkup__counter_32k, &omap44xx_l4_cfg__ctrl_module_core, @@ -6136,7 +6136,7 @@ static struct omap_hwmod_ocp_if *omap44xx_hwmod_ocp_ifs[] __initdata = { &omap44xx_l4_per__uart2, &omap44xx_l4_per__uart3, &omap44xx_l4_per__uart4, - &omap44xx_l4_cfg__usb_host_fs, + /* &omap44xx_l4_cfg__usb_host_fs, */ &omap44xx_l4_cfg__usb_host_hs, &omap44xx_l4_cfg__usb_otg_hs, &omap44xx_l4_cfg__usb_tll_hs, -- cgit v1.2.3-59-g8ed1b From d7a0b5133f6b1d53d693b9b9873e64e3c8f0db0e Mon Sep 17 00:00:00 2001 From: Benoit Cousson Date: Wed, 4 Jul 2012 06:55:29 -0600 Subject: ARM: OMAP2+: hwmod data: Fix wrong McBSP clock alias on OMAP4 The commit 503d0ea24d1d3dd3db95e5e0edd693da7a2a23eb ARM: OMAP4: hwmod data: Add aliases for McBSP fclk clocks added a wrong "prcm_clk" alias for PRCM clock whereas the McBSP driver and previous OMAPs are using "prcm_fck". It thus lead to the following warning. [ 47.409729] omap-mcbsp: clks: could not clk_get() prcm_fck Fix that by changing the opt_clk role to prcm_fck. Reported-by: Misael Lopez Cruz Signed-off-by: Benoit Cousson Cc: Peter Ujfalusi Tested-by: Sebastien Guiriec Signed-off-by: Paul Walmsley --- arch/arm/mach-omap2/omap_hwmod_44xx_data.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c index 0a1b24702091..b7bcba5221ba 100644 --- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c +++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c @@ -1928,7 +1928,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp1_sdma_reqs[] = { static struct omap_hwmod_opt_clk mcbsp1_opt_clks[] = { { .role = "pad_fck", .clk = "pad_clks_ck" }, - { .role = "prcm_clk", .clk = "mcbsp1_sync_mux_ck" }, + { .role = "prcm_fck", .clk = "mcbsp1_sync_mux_ck" }, }; static struct omap_hwmod omap44xx_mcbsp1_hwmod = { @@ -1963,7 +1963,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp2_sdma_reqs[] = { static struct omap_hwmod_opt_clk mcbsp2_opt_clks[] = { { .role = "pad_fck", .clk = "pad_clks_ck" }, - { .role = "prcm_clk", .clk = "mcbsp2_sync_mux_ck" }, + { .role = "prcm_fck", .clk = "mcbsp2_sync_mux_ck" }, }; static struct omap_hwmod omap44xx_mcbsp2_hwmod = { @@ -1998,7 +1998,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp3_sdma_reqs[] = { static struct omap_hwmod_opt_clk mcbsp3_opt_clks[] = { { .role = "pad_fck", .clk = "pad_clks_ck" }, - { .role = "prcm_clk", .clk = "mcbsp3_sync_mux_ck" }, + { .role = "prcm_fck", .clk = "mcbsp3_sync_mux_ck" }, }; static struct omap_hwmod omap44xx_mcbsp3_hwmod = { @@ -2033,7 +2033,7 @@ static struct omap_hwmod_dma_info omap44xx_mcbsp4_sdma_reqs[] = { static struct omap_hwmod_opt_clk mcbsp4_opt_clks[] = { { .role = "pad_fck", .clk = "pad_clks_ck" }, - { .role = "prcm_clk", .clk = "mcbsp4_sync_mux_ck" }, + { .role = "prcm_fck", .clk = "mcbsp4_sync_mux_ck" }, }; static struct omap_hwmod omap44xx_mcbsp4_hwmod = { -- cgit v1.2.3-59-g8ed1b From 0c47935c5b5cd4916cf1c1ed4a2894807f7bcc3e Mon Sep 17 00:00:00 2001 From: Daniel Nicoletti Date: Wed, 4 Jul 2012 10:20:31 -0300 Subject: HID: add battery quirk for Apple Wireless ANSI Add USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI, to the quirk list since it report wrong feature type and wrong percentage range. Signed-off-by: Daniel Nicoletti Signed-off-by: Jiri Kosina --- drivers/hid/hid-input.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c index 132b0019365e..5301006f6c15 100644 --- a/drivers/hid/hid-input.c +++ b/drivers/hid/hid-input.c @@ -301,6 +301,9 @@ static const struct hid_device_id hid_battery_quirks[] = { { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI), HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, + { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, + USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI), + HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, {} }; -- cgit v1.2.3-59-g8ed1b From 32e1eb59f7042c03cb8dbb598e7c97fddbb62ac2 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 4 Jul 2012 17:04:57 +0100 Subject: ARM: fix mach-versatile/pci.c warning arch/arm/mach-versatile/pci.c: In function 'versatile_map_irq': arch/arm/mach-versatile/pci.c:342: warning: unused variable 'devslot' Signed-off-by: Russell King --- arch/arm/mach-versatile/pci.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm/mach-versatile/pci.c b/arch/arm/mach-versatile/pci.c index bec933b04ef0..e95bf84cc837 100644 --- a/arch/arm/mach-versatile/pci.c +++ b/arch/arm/mach-versatile/pci.c @@ -339,7 +339,6 @@ void __init pci_versatile_preinit(void) static int __init versatile_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) { int irq; - int devslot = PCI_SLOT(dev->devfn); /* slot, pin, irq * 24 1 27 -- cgit v1.2.3-59-g8ed1b From 9b7e31bbf4bb58b12e11a7f24b7c3e48bbd2f4da Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Wed, 4 Jul 2012 13:02:56 -0700 Subject: Input: request threaded-only IRQs with IRQF_ONESHOT Since commit 1c6c69525b ("genirq: Reject bogus threaded irq requests") threaded IRQs without a primary handler need to be requested with IRQF_ONESHOT, otherwise the request will fail. This patch adds the IRQF_ONESHOT to input drivers where it is missing. Not modified by this patch are those drivers where the requested IRQ will always be a nested IRQ (e.g. because it's part of an MFD), since for this special case IRQF_ONESHOT is not required to be specified when requesting the IRQ. Signed-off-by: Lars-Peter Clausen Signed-off-by: Dmitry Torokhov --- drivers/input/joystick/as5011.c | 5 +++-- drivers/input/keyboard/mcs_touchkey.c | 3 ++- drivers/input/keyboard/mpr121_touchkey.c | 2 +- drivers/input/keyboard/qt1070.c | 3 ++- drivers/input/keyboard/tca6416-keypad.c | 3 ++- drivers/input/keyboard/tca8418_keypad.c | 2 +- drivers/input/keyboard/tnetv107x-keypad.c | 8 ++++---- drivers/input/misc/ad714x.c | 8 +++++--- drivers/input/misc/dm355evm_keys.c | 3 ++- drivers/input/touchscreen/ad7879.c | 2 +- drivers/input/touchscreen/atmel_mxt_ts.c | 3 ++- drivers/input/touchscreen/bu21013_ts.c | 3 ++- drivers/input/touchscreen/cy8ctmg110_ts.c | 3 ++- drivers/input/touchscreen/intel-mid-touch.c | 2 +- drivers/input/touchscreen/pixcir_i2c_ts.c | 2 +- drivers/input/touchscreen/tnetv107x-ts.c | 2 +- drivers/input/touchscreen/tsc2005.c | 3 ++- 17 files changed, 34 insertions(+), 23 deletions(-) diff --git a/drivers/input/joystick/as5011.c b/drivers/input/joystick/as5011.c index 3063464474bf..feeefcb09e78 100644 --- a/drivers/input/joystick/as5011.c +++ b/drivers/input/joystick/as5011.c @@ -281,7 +281,8 @@ static int __devinit as5011_probe(struct i2c_client *client, error = request_threaded_irq(as5011->button_irq, NULL, as5011_button_interrupt, - IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_RISING | + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, "as5011_button", as5011); if (error < 0) { dev_err(&client->dev, @@ -295,7 +296,7 @@ static int __devinit as5011_probe(struct i2c_client *client, error = request_threaded_irq(as5011->axis_irq, NULL, as5011_axis_interrupt, - plat_data->axis_irqflags, + plat_data->axis_irqflags | IRQF_ONESHOT, "as5011_joystick", as5011); if (error) { dev_err(&client->dev, diff --git a/drivers/input/keyboard/mcs_touchkey.c b/drivers/input/keyboard/mcs_touchkey.c index 64a0ca4c92f3..0d77f6c84950 100644 --- a/drivers/input/keyboard/mcs_touchkey.c +++ b/drivers/input/keyboard/mcs_touchkey.c @@ -178,7 +178,8 @@ static int __devinit mcs_touchkey_probe(struct i2c_client *client, } error = request_threaded_irq(client->irq, NULL, mcs_touchkey_interrupt, - IRQF_TRIGGER_FALLING, client->dev.driver->name, data); + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + client->dev.driver->name, data); if (error) { dev_err(&client->dev, "Failed to register interrupt\n"); goto err_free_mem; diff --git a/drivers/input/keyboard/mpr121_touchkey.c b/drivers/input/keyboard/mpr121_touchkey.c index caa218a51b5a..7613f1cac951 100644 --- a/drivers/input/keyboard/mpr121_touchkey.c +++ b/drivers/input/keyboard/mpr121_touchkey.c @@ -248,7 +248,7 @@ static int __devinit mpr_touchkey_probe(struct i2c_client *client, error = request_threaded_irq(client->irq, NULL, mpr_touchkey_interrupt, - IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, client->dev.driver->name, mpr121); if (error) { dev_err(&client->dev, "Failed to register interrupt\n"); diff --git a/drivers/input/keyboard/qt1070.c b/drivers/input/keyboard/qt1070.c index 0b7b2f891752..ca68f2992d72 100644 --- a/drivers/input/keyboard/qt1070.c +++ b/drivers/input/keyboard/qt1070.c @@ -201,7 +201,8 @@ static int __devinit qt1070_probe(struct i2c_client *client, msleep(QT1070_RESET_TIME); err = request_threaded_irq(client->irq, NULL, qt1070_interrupt, - IRQF_TRIGGER_NONE, client->dev.driver->name, data); + IRQF_TRIGGER_NONE | IRQF_ONESHOT, + client->dev.driver->name, data); if (err) { dev_err(&client->dev, "fail to request irq\n"); goto err_free_mem; diff --git a/drivers/input/keyboard/tca6416-keypad.c b/drivers/input/keyboard/tca6416-keypad.c index 3afea3f89718..c355cdde8d22 100644 --- a/drivers/input/keyboard/tca6416-keypad.c +++ b/drivers/input/keyboard/tca6416-keypad.c @@ -278,7 +278,8 @@ static int __devinit tca6416_keypad_probe(struct i2c_client *client, error = request_threaded_irq(chip->irqnum, NULL, tca6416_keys_isr, - IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_FALLING | + IRQF_ONESHOT, "tca6416-keypad", chip); if (error) { dev_dbg(&client->dev, diff --git a/drivers/input/keyboard/tca8418_keypad.c b/drivers/input/keyboard/tca8418_keypad.c index 5f87b28b3192..893869b29ed9 100644 --- a/drivers/input/keyboard/tca8418_keypad.c +++ b/drivers/input/keyboard/tca8418_keypad.c @@ -360,7 +360,7 @@ static int __devinit tca8418_keypad_probe(struct i2c_client *client, client->irq = gpio_to_irq(client->irq); error = request_threaded_irq(client->irq, NULL, tca8418_irq_handler, - IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, client->name, keypad_data); if (error) { dev_dbg(&client->dev, diff --git a/drivers/input/keyboard/tnetv107x-keypad.c b/drivers/input/keyboard/tnetv107x-keypad.c index a4a445fb7020..4c34f21fbe2d 100644 --- a/drivers/input/keyboard/tnetv107x-keypad.c +++ b/drivers/input/keyboard/tnetv107x-keypad.c @@ -227,15 +227,15 @@ static int __devinit keypad_probe(struct platform_device *pdev) goto error_clk; } - error = request_threaded_irq(kp->irq_press, NULL, keypad_irq, 0, - dev_name(dev), kp); + error = request_threaded_irq(kp->irq_press, NULL, keypad_irq, + IRQF_ONESHOT, dev_name(dev), kp); if (error < 0) { dev_err(kp->dev, "Could not allocate keypad press key irq\n"); goto error_irq_press; } - error = request_threaded_irq(kp->irq_release, NULL, keypad_irq, 0, - dev_name(dev), kp); + error = request_threaded_irq(kp->irq_release, NULL, keypad_irq, + IRQF_ONESHOT, dev_name(dev), kp); if (error < 0) { dev_err(kp->dev, "Could not allocate keypad release key irq\n"); goto error_irq_release; diff --git a/drivers/input/misc/ad714x.c b/drivers/input/misc/ad714x.c index 0ac75bbad4d6..2e5d5e1de647 100644 --- a/drivers/input/misc/ad714x.c +++ b/drivers/input/misc/ad714x.c @@ -972,6 +972,7 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq, struct ad714x_platform_data *plat_data = dev->platform_data; struct ad714x_chip *ad714x; void *drv_mem; + unsigned long irqflags; struct ad714x_button_drv *bt_drv; struct ad714x_slider_drv *sd_drv; @@ -1162,10 +1163,11 @@ struct ad714x_chip *ad714x_probe(struct device *dev, u16 bus_type, int irq, alloc_idx++; } + irqflags = plat_data->irqflags ?: IRQF_TRIGGER_FALLING; + irqflags |= IRQF_ONESHOT; + error = request_threaded_irq(ad714x->irq, NULL, ad714x_interrupt_thread, - plat_data->irqflags ? - plat_data->irqflags : IRQF_TRIGGER_FALLING, - "ad714x_captouch", ad714x); + irqflags, "ad714x_captouch", ad714x); if (error) { dev_err(dev, "can't allocate irq %d\n", ad714x->irq); goto err_unreg_dev; diff --git a/drivers/input/misc/dm355evm_keys.c b/drivers/input/misc/dm355evm_keys.c index 35083c6836c3..c1313d8535c3 100644 --- a/drivers/input/misc/dm355evm_keys.c +++ b/drivers/input/misc/dm355evm_keys.c @@ -213,7 +213,8 @@ static int __devinit dm355evm_keys_probe(struct platform_device *pdev) /* REVISIT: flush the event queue? */ status = request_threaded_irq(keys->irq, NULL, dm355evm_keys_irq, - IRQF_TRIGGER_FALLING, dev_name(&pdev->dev), keys); + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, + dev_name(&pdev->dev), keys); if (status < 0) goto fail2; diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c index e2482b40da51..bd4eb4277697 100644 --- a/drivers/input/touchscreen/ad7879.c +++ b/drivers/input/touchscreen/ad7879.c @@ -597,7 +597,7 @@ struct ad7879 *ad7879_probe(struct device *dev, u8 devid, unsigned int irq, AD7879_TMR(ts->pen_down_acc_interval); err = request_threaded_irq(ts->irq, NULL, ad7879_irq, - IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, dev_name(dev), ts); if (err) { dev_err(dev, "irq %d busy?\n", ts->irq); diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c index 42e645062c20..25fd0561a17d 100644 --- a/drivers/input/touchscreen/atmel_mxt_ts.c +++ b/drivers/input/touchscreen/atmel_mxt_ts.c @@ -1149,7 +1149,8 @@ static int __devinit mxt_probe(struct i2c_client *client, goto err_free_object; error = request_threaded_irq(client->irq, NULL, mxt_interrupt, - pdata->irqflags, client->dev.driver->name, data); + pdata->irqflags | IRQF_ONESHOT, + client->dev.driver->name, data); if (error) { dev_err(&client->dev, "Failed to register interrupt\n"); goto err_free_object; diff --git a/drivers/input/touchscreen/bu21013_ts.c b/drivers/input/touchscreen/bu21013_ts.c index f2d03c06c2da..5c487d23f11c 100644 --- a/drivers/input/touchscreen/bu21013_ts.c +++ b/drivers/input/touchscreen/bu21013_ts.c @@ -509,7 +509,8 @@ static int __devinit bu21013_probe(struct i2c_client *client, input_set_drvdata(in_dev, bu21013_data); error = request_threaded_irq(pdata->irq, NULL, bu21013_gpio_irq, - IRQF_TRIGGER_FALLING | IRQF_SHARED, + IRQF_TRIGGER_FALLING | IRQF_SHARED | + IRQF_ONESHOT, DRIVER_TP, bu21013_data); if (error) { dev_err(&client->dev, "request irq %d failed\n", pdata->irq); diff --git a/drivers/input/touchscreen/cy8ctmg110_ts.c b/drivers/input/touchscreen/cy8ctmg110_ts.c index 237753ad1031..464f1bf4b61d 100644 --- a/drivers/input/touchscreen/cy8ctmg110_ts.c +++ b/drivers/input/touchscreen/cy8ctmg110_ts.c @@ -251,7 +251,8 @@ static int __devinit cy8ctmg110_probe(struct i2c_client *client, } err = request_threaded_irq(client->irq, NULL, cy8ctmg110_irq_thread, - IRQF_TRIGGER_RISING, "touch_reset_key", ts); + IRQF_TRIGGER_RISING | IRQF_ONESHOT, + "touch_reset_key", ts); if (err < 0) { dev_err(&client->dev, "irq %d busy? error %d\n", client->irq, err); diff --git a/drivers/input/touchscreen/intel-mid-touch.c b/drivers/input/touchscreen/intel-mid-touch.c index 3cd7a837f82b..cf299377fc49 100644 --- a/drivers/input/touchscreen/intel-mid-touch.c +++ b/drivers/input/touchscreen/intel-mid-touch.c @@ -620,7 +620,7 @@ static int __devinit mrstouch_probe(struct platform_device *pdev) MRST_PRESSURE_MIN, MRST_PRESSURE_MAX, 0, 0); err = request_threaded_irq(tsdev->irq, NULL, mrstouch_pendet_irq, - 0, "mrstouch", tsdev); + IRQF_ONESHOT, "mrstouch", tsdev); if (err) { dev_err(tsdev->dev, "unable to allocate irq\n"); goto err_free_mem; diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c index 72f6ba3a4709..953b4c105cad 100644 --- a/drivers/input/touchscreen/pixcir_i2c_ts.c +++ b/drivers/input/touchscreen/pixcir_i2c_ts.c @@ -165,7 +165,7 @@ static int __devinit pixcir_i2c_ts_probe(struct i2c_client *client, input_set_drvdata(input, tsdata); error = request_threaded_irq(client->irq, NULL, pixcir_ts_isr, - IRQF_TRIGGER_FALLING, + IRQF_TRIGGER_FALLING | IRQF_ONESHOT, client->name, tsdata); if (error) { dev_err(&client->dev, "Unable to request touchscreen IRQ.\n"); diff --git a/drivers/input/touchscreen/tnetv107x-ts.c b/drivers/input/touchscreen/tnetv107x-ts.c index 7e7488097359..368d2c6cf780 100644 --- a/drivers/input/touchscreen/tnetv107x-ts.c +++ b/drivers/input/touchscreen/tnetv107x-ts.c @@ -297,7 +297,7 @@ static int __devinit tsc_probe(struct platform_device *pdev) goto error_clk; } - error = request_threaded_irq(ts->tsc_irq, NULL, tsc_irq, 0, + error = request_threaded_irq(ts->tsc_irq, NULL, tsc_irq, IRQF_ONESHOT, dev_name(dev), ts); if (error < 0) { dev_err(ts->dev, "Could not allocate ts irq\n"); diff --git a/drivers/input/touchscreen/tsc2005.c b/drivers/input/touchscreen/tsc2005.c index b6adeaee9cc5..5ce3fa8ce646 100644 --- a/drivers/input/touchscreen/tsc2005.c +++ b/drivers/input/touchscreen/tsc2005.c @@ -650,7 +650,8 @@ static int __devinit tsc2005_probe(struct spi_device *spi) tsc2005_stop_scan(ts); error = request_threaded_irq(spi->irq, NULL, tsc2005_irq_thread, - IRQF_TRIGGER_RISING, "tsc2005", ts); + IRQF_TRIGGER_RISING | IRQF_ONESHOT, + "tsc2005", ts); if (error) { dev_err(&spi->dev, "Failed to request irq, err: %d\n", error); goto err_free_mem; -- cgit v1.2.3-59-g8ed1b From c46d2916f6c03d3c8a2c38148af2e45cdadaf61f Mon Sep 17 00:00:00 2001 From: Lauri Hintsala Date: Thu, 5 Jul 2012 10:31:36 +0300 Subject: ARM: apx4devkit: fix FEC enabling PHY clock Ethernet stopped to work after mxs clk framework change. Signed-off-by: Lauri Hintsala Signed-off-by: Shawn Guo --- arch/arm/mach-mxs/mach-apx4devkit.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/arch/arm/mach-mxs/mach-apx4devkit.c b/arch/arm/mach-mxs/mach-apx4devkit.c index 5e90b9dcdef8..f5f061757deb 100644 --- a/arch/arm/mach-mxs/mach-apx4devkit.c +++ b/arch/arm/mach-mxs/mach-apx4devkit.c @@ -205,6 +205,16 @@ static int apx4devkit_phy_fixup(struct phy_device *phy) return 0; } +static void __init apx4devkit_fec_phy_clk_enable(void) +{ + struct clk *clk; + + /* Enable fec phy clock */ + clk = clk_get_sys("enet_out", NULL); + if (!IS_ERR(clk)) + clk_prepare_enable(clk); +} + static void __init apx4devkit_init(void) { mx28_soc_init(); @@ -225,6 +235,7 @@ static void __init apx4devkit_init(void) phy_register_fixup_for_uid(PHY_ID_KS8051, MICREL_PHY_ID_MASK, apx4devkit_phy_fixup); + apx4devkit_fec_phy_clk_enable(); mx28_add_fec(0, &mx28_fec_pdata); mx28_add_mxs_mmc(0, &apx4devkit_mmc_pdata); -- cgit v1.2.3-59-g8ed1b From 2dfd06036ba7ae8e7be2daf5a2fff1dac42390bf Mon Sep 17 00:00:00 2001 From: Junxiao Bi Date: Wed, 27 Jun 2012 17:09:54 +0800 Subject: aio: make kiocb->private NUll in init_sync_kiocb() Ocfs2 uses kiocb.*private as a flag of unsigned long size. In commit a11f7e6 ocfs2: serialize unaligned aio, the unaligned io flag is involved in it to serialize the unaligned aio. As *private is not initialized in init_sync_kiocb() of do_sync_write(), this unaligned io flag may be unexpectly set in an aligned dio. And this will cause OCFS2_I(inode)->ip_unaligned_aio decreased to -1 in ocfs2_dio_end_io(), thus the following unaligned dio will hang forever at ocfs2_aiodio_wait() in ocfs2_file_aio_write(). Signed-off-by: Junxiao Bi Cc: stable@vger.kernel.org Acked-by: Jeff Moyer Signed-off-by: Joel Becker --- include/linux/aio.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/linux/aio.h b/include/linux/aio.h index 2314ad8b3c9c..b1a520ec8b59 100644 --- a/include/linux/aio.h +++ b/include/linux/aio.h @@ -140,6 +140,7 @@ struct kiocb { (x)->ki_dtor = NULL; \ (x)->ki_obj.tsk = tsk; \ (x)->ki_user_data = 0; \ + (x)->private = NULL; \ } while (0) #define AIO_RING_MAGIC 0xa10a10a1 -- cgit v1.2.3-59-g8ed1b From 82401bf105495c593544375b4748f48fce70d9c4 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 4 Jul 2012 17:05:28 +0100 Subject: ARM: fix set_domain() macro Avoid polluting drivers with a set_domain() macro, which interferes with structure member names: drivers/net/wireless/ath/ath9k/dfs_pattern_detector.c:294:33: error: macro "set_domain" passed 2 arguments, but takes just 1 Signed-off-by: Russell King --- arch/arm/include/asm/domain.h | 18 +++++++++--------- 1 file changed, 9 insertions(+), 9 deletions(-) diff --git a/arch/arm/include/asm/domain.h b/arch/arm/include/asm/domain.h index 3d2220498abc..6ddbe446425e 100644 --- a/arch/arm/include/asm/domain.h +++ b/arch/arm/include/asm/domain.h @@ -60,13 +60,13 @@ #ifndef __ASSEMBLY__ #ifdef CONFIG_CPU_USE_DOMAINS -#define set_domain(x) \ - do { \ - __asm__ __volatile__( \ - "mcr p15, 0, %0, c3, c0 @ set domain" \ - : : "r" (x)); \ - isb(); \ - } while (0) +static inline void set_domain(unsigned val) +{ + asm volatile( + "mcr p15, 0, %0, c3, c0 @ set domain" + : : "r" (val)); + isb(); +} #define modify_domain(dom,type) \ do { \ @@ -78,8 +78,8 @@ } while (0) #else -#define set_domain(x) do { } while (0) -#define modify_domain(dom,type) do { } while (0) +static inline void set_domain(unsigned val) { } +static inline void modify_domain(unsigned dom, unsigned type) { } #endif /* -- cgit v1.2.3-59-g8ed1b From 3b0c06226783ffc836217eb34f7eca311b1e63f7 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Wed, 4 Jul 2012 18:16:30 +0100 Subject: ARM: 7442/1: Revert "remove unused restart trampoline" This reverts commit fa18484d0947b976a769d15c83c50617493c81c1. We need the restart trampoline back so that we can revert a related problematic patch 6b5c8045ecc7e726cdaa2a9d9c8e5008050e1252 ("arm: new way of handling ERESTART_RESTARTBLOCK"). Acked-by: Catalin Marinas Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/kernel/signal.c | 13 +++++++++++++ arch/arm/kernel/signal.h | 2 ++ arch/arm/kernel/traps.c | 2 ++ 3 files changed, 17 insertions(+) diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index fd2392a17ac1..6d3bce5bd7bc 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -27,6 +27,7 @@ */ #define SWI_SYS_SIGRETURN (0xef000000|(__NR_sigreturn)|(__NR_OABI_SYSCALL_BASE)) #define SWI_SYS_RT_SIGRETURN (0xef000000|(__NR_rt_sigreturn)|(__NR_OABI_SYSCALL_BASE)) +#define SWI_SYS_RESTART (0xef000000|__NR_restart_syscall|__NR_OABI_SYSCALL_BASE) /* * With EABI, the syscall number has to be loaded into r7. @@ -46,6 +47,18 @@ const unsigned long sigreturn_codes[7] = { MOV_R7_NR_RT_SIGRETURN, SWI_SYS_RT_SIGRETURN, SWI_THUMB_RT_SIGRETURN, }; +/* + * Either we support OABI only, or we have EABI with the OABI + * compat layer enabled. In the later case we don't know if + * user space is EABI or not, and if not we must not clobber r7. + * Always using the OABI syscall solves that issue and works for + * all those cases. + */ +const unsigned long syscall_restart_code[2] = { + SWI_SYS_RESTART, /* swi __NR_restart_syscall */ + 0xe49df004, /* ldr pc, [sp], #4 */ +}; + /* * atomically swap in the new signal mask, and wait for a signal. */ diff --git a/arch/arm/kernel/signal.h b/arch/arm/kernel/signal.h index 5ff067b7c752..6fcfe8398aa4 100644 --- a/arch/arm/kernel/signal.h +++ b/arch/arm/kernel/signal.h @@ -8,5 +8,7 @@ * published by the Free Software Foundation. */ #define KERN_SIGRETURN_CODE (CONFIG_VECTORS_BASE + 0x00000500) +#define KERN_RESTART_CODE (KERN_SIGRETURN_CODE + sizeof(sigreturn_codes)) extern const unsigned long sigreturn_codes[7]; +extern const unsigned long syscall_restart_code[2]; diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c index 4928d89758f4..3647170e9a16 100644 --- a/arch/arm/kernel/traps.c +++ b/arch/arm/kernel/traps.c @@ -820,6 +820,8 @@ void __init early_trap_init(void *vectors_base) */ memcpy((void *)(vectors + KERN_SIGRETURN_CODE - CONFIG_VECTORS_BASE), sigreturn_codes, sizeof(sigreturn_codes)); + memcpy((void *)(vectors + KERN_RESTART_CODE - CONFIG_VECTORS_BASE), + syscall_restart_code, sizeof(syscall_restart_code)); flush_icache_range(vectors, vectors + PAGE_SIZE); modify_domain(DOMAIN_USER, DOMAIN_CLIENT); -- cgit v1.2.3-59-g8ed1b From 433e2f307beff8adba241646ce9108544e0c5a03 Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Wed, 4 Jul 2012 18:17:16 +0100 Subject: ARM: 7443/1: Revert "new way of handling ERESTART_RESTARTBLOCK" This reverts commit 6b5c8045ecc7e726cdaa2a9d9c8e5008050e1252. Conflicts: arch/arm/kernel/ptrace.c The new syscall restarting code can lead to problems if we take an interrupt in userspace just before restarting the svc instruction. If a signal is delivered when returning from the interrupt, the TIF_SYSCALL_RESTARTSYS will remain set and cause any syscalls executed from the signal handler to be treated as a restart of the previously interrupted system call. This includes the final sigreturn call, meaning that we may fail to exit from the signal context. Furthermore, if a system call made from the signal handler requires a restart via the restart_block, it is possible to clear the thread flag and fail to restart the originally interrupted system call. The right solution to this problem is to perform the restarting in the kernel, avoiding the possibility of handling a further signal before the restart is complete. Since we're almost at -rc6, let's revert the new method for now and aim for in-kernel restarting at a later date. Acked-by: Catalin Marinas Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/include/asm/thread_info.h | 5 +---- arch/arm/kernel/ptrace.c | 3 --- arch/arm/kernel/signal.c | 33 +++++++++++++++++++++++++++------ 3 files changed, 28 insertions(+), 13 deletions(-) diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h index b79f8e97f775..af7b0bda3355 100644 --- a/arch/arm/include/asm/thread_info.h +++ b/arch/arm/include/asm/thread_info.h @@ -148,7 +148,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *, #define TIF_NOTIFY_RESUME 2 /* callback before returning to user */ #define TIF_SYSCALL_TRACE 8 #define TIF_SYSCALL_AUDIT 9 -#define TIF_SYSCALL_RESTARTSYS 10 #define TIF_POLLING_NRFLAG 16 #define TIF_USING_IWMMXT 17 #define TIF_MEMDIE 18 /* is terminating due to OOM killer */ @@ -164,11 +163,9 @@ extern int vfp_restore_user_hwstate(struct user_vfp __user *, #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) #define _TIF_USING_IWMMXT (1 << TIF_USING_IWMMXT) #define _TIF_SECCOMP (1 << TIF_SECCOMP) -#define _TIF_SYSCALL_RESTARTSYS (1 << TIF_SYSCALL_RESTARTSYS) /* Checks for any syscall work in entry-common.S */ -#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \ - _TIF_SYSCALL_RESTARTSYS) +#define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT) /* * Change these and you break ASM code in entry-common.S diff --git a/arch/arm/kernel/ptrace.c b/arch/arm/kernel/ptrace.c index 5700a7ae7f0b..14e38261cd31 100644 --- a/arch/arm/kernel/ptrace.c +++ b/arch/arm/kernel/ptrace.c @@ -25,7 +25,6 @@ #include #include #include -#include #include #include @@ -918,8 +917,6 @@ asmlinkage int syscall_trace(int why, struct pt_regs *regs, int scno) audit_syscall_entry(AUDIT_ARCH_ARM, scno, regs->ARM_r0, regs->ARM_r1, regs->ARM_r2, regs->ARM_r3); - if (why == 0 && test_and_clear_thread_flag(TIF_SYSCALL_RESTARTSYS)) - scno = __NR_restart_syscall - __NR_SYSCALL_BASE; if (!test_thread_flag(TIF_SYSCALL_TRACE)) return scno; diff --git a/arch/arm/kernel/signal.c b/arch/arm/kernel/signal.c index 6d3bce5bd7bc..536c5d6b340b 100644 --- a/arch/arm/kernel/signal.c +++ b/arch/arm/kernel/signal.c @@ -605,10 +605,12 @@ static void do_signal(struct pt_regs *regs, int syscall) case -ERESTARTNOHAND: case -ERESTARTSYS: case -ERESTARTNOINTR: - case -ERESTART_RESTARTBLOCK: regs->ARM_r0 = regs->ARM_ORIG_r0; regs->ARM_pc = restart_addr; break; + case -ERESTART_RESTARTBLOCK: + regs->ARM_r0 = -EINTR; + break; } } @@ -624,14 +626,12 @@ static void do_signal(struct pt_regs *regs, int syscall) * debugger has chosen to restart at a different PC. */ if (regs->ARM_pc == restart_addr) { - if (retval == -ERESTARTNOHAND || - retval == -ERESTART_RESTARTBLOCK + if (retval == -ERESTARTNOHAND || (retval == -ERESTARTSYS && !(ka.sa.sa_flags & SA_RESTART))) { regs->ARM_r0 = -EINTR; regs->ARM_pc = continue_addr; } - clear_thread_flag(TIF_SYSCALL_RESTARTSYS); } handle_signal(signr, &ka, &info, regs); @@ -645,8 +645,29 @@ static void do_signal(struct pt_regs *regs, int syscall) * ignore the restart. */ if (retval == -ERESTART_RESTARTBLOCK - && regs->ARM_pc == restart_addr) - set_thread_flag(TIF_SYSCALL_RESTARTSYS); + && regs->ARM_pc == continue_addr) { + if (thumb_mode(regs)) { + regs->ARM_r7 = __NR_restart_syscall - __NR_SYSCALL_BASE; + regs->ARM_pc -= 2; + } else { +#if defined(CONFIG_AEABI) && !defined(CONFIG_OABI_COMPAT) + regs->ARM_r7 = __NR_restart_syscall; + regs->ARM_pc -= 4; +#else + u32 __user *usp; + + regs->ARM_sp -= 4; + usp = (u32 __user *)regs->ARM_sp; + + if (put_user(regs->ARM_pc, usp) == 0) { + regs->ARM_pc = KERN_RESTART_CODE; + } else { + regs->ARM_sp += 4; + force_sigsegv(0, current); + } +#endif + } + } } restore_saved_sigmask(); -- cgit v1.2.3-59-g8ed1b From fdeb8e35fd59e79dec385f98eb4b6d2e3398264b Mon Sep 17 00:00:00 2001 From: Will Deacon Date: Wed, 4 Jul 2012 18:15:42 +0100 Subject: ARM: 7441/1: perf: return -EOPNOTSUPP if requested mode exclusion is unavailable We currently return -EPERM if the user requests mode exclusion that is not supported by the CPU. This looks pretty confusing from userspace and is inconsistent with other architectures (ppc, x86). This patch returns -EOPNOTSUPP instead. Signed-off-by: Will Deacon Signed-off-by: Russell King --- arch/arm/kernel/perf_event.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index 186c8cb982c5..a02eada3aa5d 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -503,7 +503,7 @@ __hw_perf_event_init(struct perf_event *event) event_requires_mode_exclusion(&event->attr)) { pr_debug("ARM performance counters do not support " "mode exclusion\n"); - return -EPERM; + return -EOPNOTSUPP; } /* -- cgit v1.2.3-59-g8ed1b From f8b435bb918412c9410da4c4b0b02b6b3d99b27c Mon Sep 17 00:00:00 2001 From: Rabin Vincent Date: Wed, 4 Jul 2012 07:37:37 +0100 Subject: ARM: 7440/1: kprobes: only test 'sub pc, pc, #1b-2b+8-2' on ARMv6 'sub pc, pc, #1b-2b+8-2' results in address<1:0> == '10'. sub pc, pc, #const (== ADR pc, #const) performs an interworking branch (BXWritePC()) on ARMv7+ and a simple branch (BranchWritePC()) on earlier versions. In ARM state, BXWritePC() is UNPREDICTABLE when address<1:0> == '10'. In ARM state on ARMv6+, BranchWritePC() ignores address<1:0>. Before ARMv6, BranchWritePC() is UNPREDICTABLE if address<1:0> != '00' So the instruction is UNPREDICTABLE both before and after v6. Acked-by: Jon Medhurst Signed-off-by: Rabin Vincent Signed-off-by: Russell King --- arch/arm/kernel/kprobes-test-arm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/kernel/kprobes-test-arm.c b/arch/arm/kernel/kprobes-test-arm.c index ba32b393b3f0..38c1a3b103a0 100644 --- a/arch/arm/kernel/kprobes-test-arm.c +++ b/arch/arm/kernel/kprobes-test-arm.c @@ -187,8 +187,8 @@ void kprobe_arm_test_cases(void) TEST_BF_R ("mov pc, r",0,2f,"") TEST_BF_RR("mov pc, r",0,2f,", asl r",1,0,"") TEST_BB( "sub pc, pc, #1b-2b+8") -#if __LINUX_ARM_ARCH__ >= 6 - TEST_BB( "sub pc, pc, #1b-2b+8-2") /* UNPREDICTABLE before ARMv6 */ +#if __LINUX_ARM_ARCH__ == 6 && !defined(CONFIG_CPU_V7) + TEST_BB( "sub pc, pc, #1b-2b+8-2") /* UNPREDICTABLE before and after ARMv6 */ #endif TEST_BB_R( "sub pc, pc, r",14, 1f-2f+8,"") TEST_BB_R( "rsb pc, r",14,1f-2f+8,", pc") -- cgit v1.2.3-59-g8ed1b From b89d607b590397c04b63d94a9e2fca9649917955 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 5 Jul 2012 13:06:32 +0100 Subject: ARM: fix warnings about atomic64_read Fix: net/netfilter/xt_connbytes.c: In function 'connbytes_mt': net/netfilter/xt_connbytes.c:43: warning: passing argument 1 of 'atomic64_read' discards qualifiers from pointer target type ... by adding the missing const. Signed-off-by: Russell King --- arch/arm/include/asm/atomic.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/include/asm/atomic.h b/arch/arm/include/asm/atomic.h index 68374ba6a943..c79f61faa3a5 100644 --- a/arch/arm/include/asm/atomic.h +++ b/arch/arm/include/asm/atomic.h @@ -243,7 +243,7 @@ typedef struct { #define ATOMIC64_INIT(i) { (i) } -static inline u64 atomic64_read(atomic64_t *v) +static inline u64 atomic64_read(const atomic64_t *v) { u64 result; -- cgit v1.2.3-59-g8ed1b From 09b2ad13da3ac7c717dd86bfca7072d9b36f7449 Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 5 Jul 2012 13:11:31 +0100 Subject: ARM: fix warning caused by wrongly typed arm_dma_limit arch/arm/mm/init.c: In function 'arm_memblock_init': arch/arm/mm/init.c:380: warning: comparison of distinct pointer types lacks a cast by fixing the typecast in its definition when DMA_ZONE is disabled. This was missed in 4986e5c7c (ARM: mm: fix type of the arm_dma_limit global variable). Signed-off-by: Russell King --- arch/arm/mm/mm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/mm/mm.h b/arch/arm/mm/mm.h index c471436c7952..2e8a1efdf7b8 100644 --- a/arch/arm/mm/mm.h +++ b/arch/arm/mm/mm.h @@ -64,7 +64,7 @@ extern void __flush_dcache_page(struct address_space *mapping, struct page *page #ifdef CONFIG_ZONE_DMA extern phys_addr_t arm_dma_limit; #else -#define arm_dma_limit ((u32)~0) +#define arm_dma_limit ((phys_addr_t)~0) #endif extern phys_addr_t arm_lowmem_limit; -- cgit v1.2.3-59-g8ed1b From 2e2070c85aa19f6c5bb3642a1429abf42f101e8d Mon Sep 17 00:00:00 2001 From: Alessandro Rubini Date: Sun, 27 May 2012 22:55:41 +0200 Subject: gpio-sta2x11: don't use pdata if null If there is no platform data available, the driver shouldn't use the pointer or it will oops. Since things will mostly work nonetheless, (the BIOS may have set up the pins properly), I'd better not fail the probe even in this case. Signed-off-by: Alessandro Rubini Acked-by: Giancarlo Asnaghi Signed-off-by: Linus Walleij --- drivers/gpio/gpio-sta2x11.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpio/gpio-sta2x11.c b/drivers/gpio/gpio-sta2x11.c index 38416be8ba11..6064fb376e11 100644 --- a/drivers/gpio/gpio-sta2x11.c +++ b/drivers/gpio/gpio-sta2x11.c @@ -383,8 +383,9 @@ static int __devinit gsta_probe(struct platform_device *dev) } spin_lock_init(&chip->lock); gsta_gpio_setup(chip); - for (i = 0; i < GSTA_NR_GPIO; i++) - gsta_set_config(chip, i, gpio_pdata->pinconfig[i]); + if (gpio_pdata) + for (i = 0; i < GSTA_NR_GPIO; i++) + gsta_set_config(chip, i, gpio_pdata->pinconfig[i]); /* 384 was used in previous code: be compatible for other drivers */ err = irq_alloc_descs(-1, 384, GSTA_NR_GPIO, NUMA_NO_NODE); -- cgit v1.2.3-59-g8ed1b From afcc0f8c174ff34305146878c40e7dcc72fcbbdf Mon Sep 17 00:00:00 2001 From: Christian Dietrich Date: Thu, 31 May 2012 13:12:57 +0200 Subject: gpio/msm_v1: CONFIG_GPIO_MSM_V1 is only available on three SoCs MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The feature GPIO_MSM_V1 is only available on three SoCs. On all other MSM SoCs the INT_GPIO_GROUP{1,2} is undeclared, but Kconfig does allow such configurations. Therefore the produced configuration is valid, but does not compile. The problem is fixed by adding the missing Kconfig constraints. drivers/gpio/gpio-msm-v1.c: In function ‘msm_init_gpio’: drivers/gpio/gpio-msm-v1.c:629:26: error: 'INT_GPIO_GROUP1' undeclared drivers/gpio/gpio-msm-v1.c:630:26: error: 'INT_GPIO_GROUP2' undeclared Signed-off-by: Christian Dietrich Signed-off-by: Linus Walleij --- drivers/gpio/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig index c4067d0141f7..542f0c04b695 100644 --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -136,7 +136,7 @@ config GPIO_MPC8XXX config GPIO_MSM_V1 tristate "Qualcomm MSM GPIO v1" - depends on GPIOLIB && ARCH_MSM + depends on GPIOLIB && ARCH_MSM && (ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50) help Say yes here to support the GPIO interface on ARM v6 based Qualcomm MSM chips. Most of the pins on the MSM can be -- cgit v1.2.3-59-g8ed1b From 8cd578b6e28693f357867a77598a88ef3deb6b39 Mon Sep 17 00:00:00 2001 From: Mark Brown Date: Sat, 9 Jun 2012 11:07:56 +0800 Subject: gpiolib: wm8994: Pay attention to the value set when enabling as output Not paying attention to the value being set is a bad thing because it means that we'll not set the hardware up to reflect what was requested. Not setting the hardware up to reflect what was requested means that the caller won't get the results they wanted. Signed-off-by: Mark Brown Cc: stable@vger.kernel.org Signed-off-by: Linus Walleij --- drivers/gpio/gpio-wm8994.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/gpio/gpio-wm8994.c b/drivers/gpio/gpio-wm8994.c index 92ea5350dfe9..aa61ad2fcaaa 100644 --- a/drivers/gpio/gpio-wm8994.c +++ b/drivers/gpio/gpio-wm8994.c @@ -89,8 +89,11 @@ static int wm8994_gpio_direction_out(struct gpio_chip *chip, struct wm8994_gpio *wm8994_gpio = to_wm8994_gpio(chip); struct wm8994 *wm8994 = wm8994_gpio->wm8994; + if (value) + value = WM8994_GPN_LVL; + return wm8994_set_bits(wm8994, WM8994_GPIO_1 + offset, - WM8994_GPN_DIR, 0); + WM8994_GPN_DIR | WM8994_GPN_LVL, value); } static void wm8994_gpio_set(struct gpio_chip *chip, unsigned offset, int value) -- cgit v1.2.3-59-g8ed1b From 3996bfc787a3b3d7c7ad97b7519247f9f2ac4068 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Thu, 7 Jun 2012 17:56:09 -0600 Subject: gpio: export devm_gpio_request_one Without this, modules can't use this API, leading to build failures. Signed-off-by: Stephen Warren Signed-off-by: Linus Walleij --- drivers/gpio/devres.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpio/devres.c b/drivers/gpio/devres.c index 9e9947cb86a3..1077754f8289 100644 --- a/drivers/gpio/devres.c +++ b/drivers/gpio/devres.c @@ -98,6 +98,7 @@ int devm_gpio_request_one(struct device *dev, unsigned gpio, return 0; } +EXPORT_SYMBOL(devm_gpio_request_one); /** * devm_gpio_free - free an interrupt -- cgit v1.2.3-59-g8ed1b From 42b14cb037fefa33a2ff51c4d3915a49c71de3d5 Mon Sep 17 00:00:00 2001 From: Roland Stigge Date: Mon, 18 Jun 2012 11:28:26 +0200 Subject: mips: pci-lantiq: Fix check for valid gpio This patch fixes two checks for valid gpio number, formerly (wrongly) considering zero as invalid, now using gpio_is_valid(). Signed-off-by: Roland Stigge Signed-off-by: Linus Walleij --- arch/mips/pci/pci-lantiq.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/mips/pci/pci-lantiq.c b/arch/mips/pci/pci-lantiq.c index ea453532a33c..075d87acd12a 100644 --- a/arch/mips/pci/pci-lantiq.c +++ b/arch/mips/pci/pci-lantiq.c @@ -129,7 +129,7 @@ static int __devinit ltq_pci_startup(struct platform_device *pdev) /* setup reset gpio used by pci */ reset_gpio = of_get_named_gpio(node, "gpio-reset", 0); - if (reset_gpio > 0) + if (gpio_is_valid(reset_gpio)) devm_gpio_request(&pdev->dev, reset_gpio, "pci-reset"); /* enable auto-switching between PCI and EBU */ @@ -192,7 +192,7 @@ static int __devinit ltq_pci_startup(struct platform_device *pdev) ltq_ebu_w32(ltq_ebu_r32(LTQ_EBU_PCC_IEN) | 0x10, LTQ_EBU_PCC_IEN); /* toggle reset pin */ - if (reset_gpio > 0) { + if (gpio_is_valid(reset_gpio)) { __gpio_set_value(reset_gpio, 0); wmb(); mdelay(1); -- cgit v1.2.3-59-g8ed1b From f567fde24640cf6f2d6416196bfc8b3fefc8e433 Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 20 Jun 2012 14:14:05 +0530 Subject: gpio: fix bits conflict for gpio flags The bit 2 and 3 in GPIO flag are allocated for the flag OPEN_DRAIN/OPEN_SOURCE. These bits are reused for the flag EXPORT/EXPORT_CHANGEABLE and so creating conflict. Fix this conflict by assigning bit 4 and 5 for the flag EXPORT/EXPORT_CHANGEABLE. Signed-off-by: Laxman Dewangan Signed-off-by: Linus Walleij --- include/linux/gpio.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/linux/gpio.h b/include/linux/gpio.h index f07fc2d08159..2e31e8b3a190 100644 --- a/include/linux/gpio.h +++ b/include/linux/gpio.h @@ -22,8 +22,8 @@ /* Gpio pin is open source */ #define GPIOF_OPEN_SOURCE (1 << 3) -#define GPIOF_EXPORT (1 << 2) -#define GPIOF_EXPORT_CHANGEABLE (1 << 3) +#define GPIOF_EXPORT (1 << 4) +#define GPIOF_EXPORT_CHANGEABLE (1 << 5) #define GPIOF_EXPORT_DIR_FIXED (GPIOF_EXPORT) #define GPIOF_EXPORT_DIR_CHANGEABLE (GPIOF_EXPORT | GPIOF_EXPORT_CHANGEABLE) -- cgit v1.2.3-59-g8ed1b From 33a4e985bab25d6753b52d1322b4e2fff706dd4f Mon Sep 17 00:00:00 2001 From: Uwe Kleine-König Date: Wed, 6 Jun 2012 11:49:23 +0200 Subject: gpio/mxc: make irqs work for fsl,imx21-gpio devices MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The chained handler was set for the platform device with id == 0. When the gpio devices are instantiated by a device tree, all have id == -1 and so the handler was unset resulting in unusable gpio irqs on i.MX21 and i.MX27 (when using oftree). Acked-by: Shawn Guo Cc: Grant Likely Signed-off-by: Uwe Kleine-König Signed-off-by: Linus Walleij --- drivers/gpio/gpio-mxc.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/gpio/gpio-mxc.c b/drivers/gpio/gpio-mxc.c index c337143b18f8..c89c4c1e668d 100644 --- a/drivers/gpio/gpio-mxc.c +++ b/drivers/gpio/gpio-mxc.c @@ -398,10 +398,12 @@ static int __devinit mxc_gpio_probe(struct platform_device *pdev) writel(~0, port->base + GPIO_ISR); if (mxc_gpio_hwtype == IMX21_GPIO) { - /* setup one handler for all GPIO interrupts */ - if (pdev->id == 0) - irq_set_chained_handler(port->irq, - mx2_gpio_irq_handler); + /* + * Setup one handler for all GPIO interrupts. Actually setting + * the handler is needed only once, but doing it for every port + * is more robust and easier. + */ + irq_set_chained_handler(port->irq, mx2_gpio_irq_handler); } else { /* setup one handler for each entry */ irq_set_chained_handler(port->irq, mx3_gpio_irq_handler); -- cgit v1.2.3-59-g8ed1b From 626f9914a371e22f15135f67db6c2aa64adbdacb Mon Sep 17 00:00:00 2001 From: Laxman Dewangan Date: Wed, 4 Jul 2012 20:36:45 +0530 Subject: gpio: tps65910: initialize of_node of gpio_chip Initialize the gpio chip's of_node to the device's node to work with DT based system. Signed-off-by: Laxman Dewangan Signed-off-by: Linus Walleij --- drivers/gpio/gpio-tps65910.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpio/gpio-tps65910.c b/drivers/gpio/gpio-tps65910.c index c1ad2884f2ed..0749f9630869 100644 --- a/drivers/gpio/gpio-tps65910.c +++ b/drivers/gpio/gpio-tps65910.c @@ -149,6 +149,7 @@ static int __devinit tps65910_gpio_probe(struct platform_device *pdev) tps65910_gpio->gpio_chip.set = tps65910_gpio_set; tps65910_gpio->gpio_chip.get = tps65910_gpio_get; tps65910_gpio->gpio_chip.dev = &pdev->dev; + tps65910_gpio->gpio_chip.of_node = tps65910->dev->of_node; if (pdata && pdata->gpio_base) tps65910_gpio->gpio_chip.base = pdata->gpio_base; else -- cgit v1.2.3-59-g8ed1b From 164c33c6adee609b8b9062cce4c10f764d0dce13 Mon Sep 17 00:00:00 2001 From: Salman Qazi Date: Mon, 25 Jun 2012 18:18:15 -0700 Subject: sched: Fix fork() error path to not crash In dup_task_struct(), if arch_dup_task_struct() fails, the clean up code fails to clean up correctly. That's because the clean up code depends on unininitalized ti->task pointer. We fix this by making sure that the task and thread_info know about each other before we attempt to take the error path. Signed-off-by: Salman Qazi Signed-off-by: Peter Zijlstra Link: http://lkml.kernel.org/r/20120626011815.11323.5533.stgit@dungbeetle.mtv.corp.google.com Signed-off-by: Ingo Molnar --- kernel/fork.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/kernel/fork.c b/kernel/fork.c index ab5211b9e622..f00e319d8376 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -304,12 +304,17 @@ static struct task_struct *dup_task_struct(struct task_struct *orig) } err = arch_dup_task_struct(tsk, orig); - if (err) - goto out; + /* + * We defer looking at err, because we will need this setup + * for the clean up path to work correctly. + */ tsk->stack = ti; - setup_thread_stack(tsk, orig); + + if (err) + goto out; + clear_user_return_notifier(tsk); clear_tsk_need_resched(tsk); stackend = end_of_stack(tsk); -- cgit v1.2.3-59-g8ed1b From 5167e8d5417bf5c322a703d2927daec727ea40dd Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 22 Jun 2012 15:52:09 +0200 Subject: sched/nohz: Rewrite and fix load-avg computation -- again Thanks to Charles Wang for spotting the defects in the current code: - If we go idle during the sample window -- after sampling, we get a negative bias because we can negate our own sample. - If we wake up during the sample window we get a positive bias because we push the sample to a known active period. So rewrite the entire nohz load-avg muck once again, now adding copious documentation to the code. Reported-and-tested-by: Doug Smythies Reported-and-tested-by: Charles Wang Signed-off-by: Peter Zijlstra Cc: Linus Torvalds Cc: Andrew Morton Cc: stable@kernel.org Link: http://lkml.kernel.org/r/1340373782.18025.74.camel@twins [ minor edits ] Signed-off-by: Ingo Molnar --- include/linux/sched.h | 8 ++ kernel/sched/core.c | 275 ++++++++++++++++++++++++++++++++++------------- kernel/sched/idle_task.c | 1 - kernel/sched/sched.h | 2 - kernel/time/tick-sched.c | 2 + 5 files changed, 213 insertions(+), 75 deletions(-) diff --git a/include/linux/sched.h b/include/linux/sched.h index 4059c0f33f07..20cb7497c59c 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -1909,6 +1909,14 @@ static inline int set_cpus_allowed_ptr(struct task_struct *p, } #endif +#ifdef CONFIG_NO_HZ +void calc_load_enter_idle(void); +void calc_load_exit_idle(void); +#else +static inline void calc_load_enter_idle(void) { } +static inline void calc_load_exit_idle(void) { } +#endif /* CONFIG_NO_HZ */ + #ifndef CONFIG_CPUMASK_OFFSTACK static inline int set_cpus_allowed(struct task_struct *p, cpumask_t new_mask) { diff --git a/kernel/sched/core.c b/kernel/sched/core.c index d5594a4268d4..bb840405335d 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -2161,11 +2161,73 @@ unsigned long this_cpu_load(void) } +/* + * Global load-average calculations + * + * We take a distributed and async approach to calculating the global load-avg + * in order to minimize overhead. + * + * The global load average is an exponentially decaying average of nr_running + + * nr_uninterruptible. + * + * Once every LOAD_FREQ: + * + * nr_active = 0; + * for_each_possible_cpu(cpu) + * nr_active += cpu_of(cpu)->nr_running + cpu_of(cpu)->nr_uninterruptible; + * + * avenrun[n] = avenrun[0] * exp_n + nr_active * (1 - exp_n) + * + * Due to a number of reasons the above turns in the mess below: + * + * - for_each_possible_cpu() is prohibitively expensive on machines with + * serious number of cpus, therefore we need to take a distributed approach + * to calculating nr_active. + * + * \Sum_i x_i(t) = \Sum_i x_i(t) - x_i(t_0) | x_i(t_0) := 0 + * = \Sum_i { \Sum_j=1 x_i(t_j) - x_i(t_j-1) } + * + * So assuming nr_active := 0 when we start out -- true per definition, we + * can simply take per-cpu deltas and fold those into a global accumulate + * to obtain the same result. See calc_load_fold_active(). + * + * Furthermore, in order to avoid synchronizing all per-cpu delta folding + * across the machine, we assume 10 ticks is sufficient time for every + * cpu to have completed this task. + * + * This places an upper-bound on the IRQ-off latency of the machine. Then + * again, being late doesn't loose the delta, just wrecks the sample. + * + * - cpu_rq()->nr_uninterruptible isn't accurately tracked per-cpu because + * this would add another cross-cpu cacheline miss and atomic operation + * to the wakeup path. Instead we increment on whatever cpu the task ran + * when it went into uninterruptible state and decrement on whatever cpu + * did the wakeup. This means that only the sum of nr_uninterruptible over + * all cpus yields the correct result. + * + * This covers the NO_HZ=n code, for extra head-aches, see the comment below. + */ + /* Variables and functions for calc_load */ static atomic_long_t calc_load_tasks; static unsigned long calc_load_update; unsigned long avenrun[3]; -EXPORT_SYMBOL(avenrun); +EXPORT_SYMBOL(avenrun); /* should be removed */ + +/** + * get_avenrun - get the load average array + * @loads: pointer to dest load array + * @offset: offset to add + * @shift: shift count to shift the result left + * + * These values are estimates at best, so no need for locking. + */ +void get_avenrun(unsigned long *loads, unsigned long offset, int shift) +{ + loads[0] = (avenrun[0] + offset) << shift; + loads[1] = (avenrun[1] + offset) << shift; + loads[2] = (avenrun[2] + offset) << shift; +} static long calc_load_fold_active(struct rq *this_rq) { @@ -2182,6 +2244,9 @@ static long calc_load_fold_active(struct rq *this_rq) return delta; } +/* + * a1 = a0 * e + a * (1 - e) + */ static unsigned long calc_load(unsigned long load, unsigned long exp, unsigned long active) { @@ -2193,30 +2258,118 @@ calc_load(unsigned long load, unsigned long exp, unsigned long active) #ifdef CONFIG_NO_HZ /* - * For NO_HZ we delay the active fold to the next LOAD_FREQ update. + * Handle NO_HZ for the global load-average. + * + * Since the above described distributed algorithm to compute the global + * load-average relies on per-cpu sampling from the tick, it is affected by + * NO_HZ. + * + * The basic idea is to fold the nr_active delta into a global idle-delta upon + * entering NO_HZ state such that we can include this as an 'extra' cpu delta + * when we read the global state. + * + * Obviously reality has to ruin such a delightfully simple scheme: + * + * - When we go NO_HZ idle during the window, we can negate our sample + * contribution, causing under-accounting. + * + * We avoid this by keeping two idle-delta counters and flipping them + * when the window starts, thus separating old and new NO_HZ load. + * + * The only trick is the slight shift in index flip for read vs write. + * + * 0s 5s 10s 15s + * +10 +10 +10 +10 + * |-|-----------|-|-----------|-|-----------|-| + * r:0 0 1 1 0 0 1 1 0 + * w:0 1 1 0 0 1 1 0 0 + * + * This ensures we'll fold the old idle contribution in this window while + * accumlating the new one. + * + * - When we wake up from NO_HZ idle during the window, we push up our + * contribution, since we effectively move our sample point to a known + * busy state. + * + * This is solved by pushing the window forward, and thus skipping the + * sample, for this cpu (effectively using the idle-delta for this cpu which + * was in effect at the time the window opened). This also solves the issue + * of having to deal with a cpu having been in NOHZ idle for multiple + * LOAD_FREQ intervals. * * When making the ILB scale, we should try to pull this in as well. */ -static atomic_long_t calc_load_tasks_idle; +static atomic_long_t calc_load_idle[2]; +static int calc_load_idx; -void calc_load_account_idle(struct rq *this_rq) +static inline int calc_load_write_idx(void) { + int idx = calc_load_idx; + + /* + * See calc_global_nohz(), if we observe the new index, we also + * need to observe the new update time. + */ + smp_rmb(); + + /* + * If the folding window started, make sure we start writing in the + * next idle-delta. + */ + if (!time_before(jiffies, calc_load_update)) + idx++; + + return idx & 1; +} + +static inline int calc_load_read_idx(void) +{ + return calc_load_idx & 1; +} + +void calc_load_enter_idle(void) +{ + struct rq *this_rq = this_rq(); long delta; + /* + * We're going into NOHZ mode, if there's any pending delta, fold it + * into the pending idle delta. + */ delta = calc_load_fold_active(this_rq); - if (delta) - atomic_long_add(delta, &calc_load_tasks_idle); + if (delta) { + int idx = calc_load_write_idx(); + atomic_long_add(delta, &calc_load_idle[idx]); + } } -static long calc_load_fold_idle(void) +void calc_load_exit_idle(void) { - long delta = 0; + struct rq *this_rq = this_rq(); + + /* + * If we're still before the sample window, we're done. + */ + if (time_before(jiffies, this_rq->calc_load_update)) + return; /* - * Its got a race, we don't care... + * We woke inside or after the sample window, this means we're already + * accounted through the nohz accounting, so skip the entire deal and + * sync up for the next window. */ - if (atomic_long_read(&calc_load_tasks_idle)) - delta = atomic_long_xchg(&calc_load_tasks_idle, 0); + this_rq->calc_load_update = calc_load_update; + if (time_before(jiffies, this_rq->calc_load_update + 10)) + this_rq->calc_load_update += LOAD_FREQ; +} + +static long calc_load_fold_idle(void) +{ + int idx = calc_load_read_idx(); + long delta = 0; + + if (atomic_long_read(&calc_load_idle[idx])) + delta = atomic_long_xchg(&calc_load_idle[idx], 0); return delta; } @@ -2302,66 +2455,39 @@ static void calc_global_nohz(void) { long delta, active, n; - /* - * If we crossed a calc_load_update boundary, make sure to fold - * any pending idle changes, the respective CPUs might have - * missed the tick driven calc_load_account_active() update - * due to NO_HZ. - */ - delta = calc_load_fold_idle(); - if (delta) - atomic_long_add(delta, &calc_load_tasks); - - /* - * It could be the one fold was all it took, we done! - */ - if (time_before(jiffies, calc_load_update + 10)) - return; - - /* - * Catch-up, fold however many we are behind still - */ - delta = jiffies - calc_load_update - 10; - n = 1 + (delta / LOAD_FREQ); + if (!time_before(jiffies, calc_load_update + 10)) { + /* + * Catch-up, fold however many we are behind still + */ + delta = jiffies - calc_load_update - 10; + n = 1 + (delta / LOAD_FREQ); - active = atomic_long_read(&calc_load_tasks); - active = active > 0 ? active * FIXED_1 : 0; + active = atomic_long_read(&calc_load_tasks); + active = active > 0 ? active * FIXED_1 : 0; - avenrun[0] = calc_load_n(avenrun[0], EXP_1, active, n); - avenrun[1] = calc_load_n(avenrun[1], EXP_5, active, n); - avenrun[2] = calc_load_n(avenrun[2], EXP_15, active, n); + avenrun[0] = calc_load_n(avenrun[0], EXP_1, active, n); + avenrun[1] = calc_load_n(avenrun[1], EXP_5, active, n); + avenrun[2] = calc_load_n(avenrun[2], EXP_15, active, n); - calc_load_update += n * LOAD_FREQ; -} -#else -void calc_load_account_idle(struct rq *this_rq) -{ -} + calc_load_update += n * LOAD_FREQ; + } -static inline long calc_load_fold_idle(void) -{ - return 0; + /* + * Flip the idle index... + * + * Make sure we first write the new time then flip the index, so that + * calc_load_write_idx() will see the new time when it reads the new + * index, this avoids a double flip messing things up. + */ + smp_wmb(); + calc_load_idx++; } +#else /* !CONFIG_NO_HZ */ -static void calc_global_nohz(void) -{ -} -#endif +static inline long calc_load_fold_idle(void) { return 0; } +static inline void calc_global_nohz(void) { } -/** - * get_avenrun - get the load average array - * @loads: pointer to dest load array - * @offset: offset to add - * @shift: shift count to shift the result left - * - * These values are estimates at best, so no need for locking. - */ -void get_avenrun(unsigned long *loads, unsigned long offset, int shift) -{ - loads[0] = (avenrun[0] + offset) << shift; - loads[1] = (avenrun[1] + offset) << shift; - loads[2] = (avenrun[2] + offset) << shift; -} +#endif /* CONFIG_NO_HZ */ /* * calc_load - update the avenrun load estimates 10 ticks after the @@ -2369,11 +2495,18 @@ void get_avenrun(unsigned long *loads, unsigned long offset, int shift) */ void calc_global_load(unsigned long ticks) { - long active; + long active, delta; if (time_before(jiffies, calc_load_update + 10)) return; + /* + * Fold the 'old' idle-delta to include all NO_HZ cpus. + */ + delta = calc_load_fold_idle(); + if (delta) + atomic_long_add(delta, &calc_load_tasks); + active = atomic_long_read(&calc_load_tasks); active = active > 0 ? active * FIXED_1 : 0; @@ -2384,12 +2517,7 @@ void calc_global_load(unsigned long ticks) calc_load_update += LOAD_FREQ; /* - * Account one period with whatever state we found before - * folding in the nohz state and ageing the entire idle period. - * - * This avoids loosing a sample when we go idle between - * calc_load_account_active() (10 ticks ago) and now and thus - * under-accounting. + * In case we idled for multiple LOAD_FREQ intervals, catch up in bulk. */ calc_global_nohz(); } @@ -2406,13 +2534,16 @@ static void calc_load_account_active(struct rq *this_rq) return; delta = calc_load_fold_active(this_rq); - delta += calc_load_fold_idle(); if (delta) atomic_long_add(delta, &calc_load_tasks); this_rq->calc_load_update += LOAD_FREQ; } +/* + * End of global load-average stuff + */ + /* * The exact cpuload at various idx values, calculated at every tick would be * load = (2^idx - 1) / 2^idx * load + 1 / 2^idx * cur_load diff --git a/kernel/sched/idle_task.c b/kernel/sched/idle_task.c index b44d604b35d1..b6baf370cae9 100644 --- a/kernel/sched/idle_task.c +++ b/kernel/sched/idle_task.c @@ -25,7 +25,6 @@ static void check_preempt_curr_idle(struct rq *rq, struct task_struct *p, int fl static struct task_struct *pick_next_task_idle(struct rq *rq) { schedstat_inc(rq, sched_goidle); - calc_load_account_idle(rq); return rq->idle; } diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h index 6d52cea7f33d..55844f24435a 100644 --- a/kernel/sched/sched.h +++ b/kernel/sched/sched.h @@ -942,8 +942,6 @@ static inline u64 sched_avg_period(void) return (u64)sysctl_sched_time_avg * NSEC_PER_MSEC / 2; } -void calc_load_account_idle(struct rq *this_rq); - #ifdef CONFIG_SCHED_HRTICK /* diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 869997833928..4a08472c3ca7 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -406,6 +406,7 @@ static void tick_nohz_stop_sched_tick(struct tick_sched *ts) */ if (!ts->tick_stopped) { select_nohz_load_balancer(1); + calc_load_enter_idle(); ts->idle_tick = hrtimer_get_expires(&ts->sched_timer); ts->tick_stopped = 1; @@ -597,6 +598,7 @@ void tick_nohz_idle_exit(void) account_idle_ticks(ticks); #endif + calc_load_exit_idle(); touch_softlockup_watchdog(); /* * Cancel the scheduled timer and restore the tick -- cgit v1.2.3-59-g8ed1b From 2d3f6ccc4ea5c74d4b4af1b47c56b4cff4bbfcb7 Mon Sep 17 00:00:00 2001 From: Simon Wunderlich Date: Wed, 4 Jul 2012 20:38:19 +0200 Subject: batman-adv: check incoming packet type for bla If the gateway functionality is used, some broadcast packets (DHCP requests) may be transmitted as unicast packets. As the bridge loop avoidance code now only considers the payload Ethernet destination, it may drop the DHCP request for clients which are claimed by other backbone gateways, because it falsely infers from the broadcast address that the right backbone gateway should havehandled the broadcast. Fix this by checking and delegating the batman-adv packet type used for transmission. Reported-by: Guido Iribarren Signed-off-by: Simon Wunderlich --- net/batman-adv/bridge_loop_avoidance.c | 15 +++++++++++---- net/batman-adv/bridge_loop_avoidance.h | 5 +++-- net/batman-adv/soft-interface.c | 6 +++++- 3 files changed, 19 insertions(+), 7 deletions(-) diff --git a/net/batman-adv/bridge_loop_avoidance.c b/net/batman-adv/bridge_loop_avoidance.c index 8bf97515a77d..c5863f499133 100644 --- a/net/batman-adv/bridge_loop_avoidance.c +++ b/net/batman-adv/bridge_loop_avoidance.c @@ -1351,6 +1351,7 @@ void bla_free(struct bat_priv *bat_priv) * @bat_priv: the bat priv with all the soft interface information * @skb: the frame to be checked * @vid: the VLAN ID of the frame + * @is_bcast: the packet came in a broadcast packet type. * * bla_rx avoidance checks if: * * we have to race for a claim @@ -1361,7 +1362,8 @@ void bla_free(struct bat_priv *bat_priv) * process the skb. * */ -int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid) +int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid, + bool is_bcast) { struct ethhdr *ethhdr; struct claim search_claim, *claim = NULL; @@ -1380,7 +1382,7 @@ int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid) if (unlikely(atomic_read(&bat_priv->bla_num_requests))) /* don't allow broadcasts while requests are in flight */ - if (is_multicast_ether_addr(ethhdr->h_dest)) + if (is_multicast_ether_addr(ethhdr->h_dest) && is_bcast) goto handled; memcpy(search_claim.addr, ethhdr->h_source, ETH_ALEN); @@ -1406,8 +1408,13 @@ int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid) } /* if it is a broadcast ... */ - if (is_multicast_ether_addr(ethhdr->h_dest)) { - /* ... drop it. the responsible gateway is in charge. */ + if (is_multicast_ether_addr(ethhdr->h_dest) && is_bcast) { + /* ... drop it. the responsible gateway is in charge. + * + * We need to check is_bcast because with the gateway + * feature, broadcasts (like DHCP requests) may be sent + * using a unicast packet type. + */ goto handled; } else { /* seems the client considers us as its best gateway. diff --git a/net/batman-adv/bridge_loop_avoidance.h b/net/batman-adv/bridge_loop_avoidance.h index e39f93acc28f..dc5227b398d4 100644 --- a/net/batman-adv/bridge_loop_avoidance.h +++ b/net/batman-adv/bridge_loop_avoidance.h @@ -23,7 +23,8 @@ #define _NET_BATMAN_ADV_BLA_H_ #ifdef CONFIG_BATMAN_ADV_BLA -int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid); +int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid, + bool is_bcast); int bla_tx(struct bat_priv *bat_priv, struct sk_buff *skb, short vid); int bla_is_backbone_gw(struct sk_buff *skb, struct orig_node *orig_node, int hdr_size); @@ -41,7 +42,7 @@ void bla_free(struct bat_priv *bat_priv); #else /* ifdef CONFIG_BATMAN_ADV_BLA */ static inline int bla_rx(struct bat_priv *bat_priv, struct sk_buff *skb, - short vid) + short vid, bool is_bcast) { return 0; } diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index 6e2530b02043..a0ec0e4ada4c 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -256,7 +256,11 @@ void interface_rx(struct net_device *soft_iface, struct bat_priv *bat_priv = netdev_priv(soft_iface); struct ethhdr *ethhdr; struct vlan_ethhdr *vhdr; + struct batman_header *batadv_header = (struct batman_header *)skb->data; short vid __maybe_unused = -1; + bool is_bcast; + + is_bcast = (batadv_header->packet_type == BAT_BCAST); /* check if enough space is available for pulling, and pull */ if (!pskb_may_pull(skb, hdr_size)) @@ -302,7 +306,7 @@ void interface_rx(struct net_device *soft_iface, /* Let the bridge loop avoidance check the packet. If will * not handle it, we can safely push it up. */ - if (bla_rx(bat_priv, skb, vid)) + if (bla_rx(bat_priv, skb, vid, is_bcast)) goto out; netif_rx(skb); -- cgit v1.2.3-59-g8ed1b From 8e16e33c168a6efd0c9f7fa9dd4c1e1db9a74553 Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Mon, 2 Jul 2012 19:53:55 +0200 Subject: USB: option: add ZTE MF60 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Switches into a composite device by ejecting the initial driver CD. The four interfaces are: QCDM, AT, QMI/wwan and mass storage. Let this driver manage the two serial interfaces: T: Bus=02 Lev=01 Prnt=01 Port=01 Cnt=01 Dev#= 28 Spd=480 MxCh= 0 D: Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs= 1 P: Vendor=19d2 ProdID=1402 Rev= 0.00 S: Manufacturer=ZTE,Incorporated S: Product=ZTE WCDMA Technologies MSM S: SerialNumber=xxxxx C:* #Ifs= 4 Cfg#= 1 Atr=c0 MxPwr=500mA I:* If#= 0 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 1 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=ff Driver=option E: Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 2 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=ff Driver=qmi_wwan E: Ad=83(I) Atr=03(Int.) MxPS= 64 Ivl=2ms E: Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=4ms I:* If#= 3 Alt= 0 #EPs= 2 Cls=08(stor.) Sub=06 Prot=50 Driver=usb-storage E: Ad=04(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms E: Ad=85(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms Signed-off-by: Bjørn Mork Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index adf8ce72be50..167aed8b2488 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -554,6 +554,10 @@ static const struct option_blacklist_info net_intf1_blacklist = { .reserved = BIT(1), }; +static const struct option_blacklist_info net_intf2_blacklist = { + .reserved = BIT(2), +}; + static const struct option_blacklist_info net_intf3_blacklist = { .reserved = BIT(3), }; @@ -1099,6 +1103,8 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1298, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1299, 0xff, 0xff, 0xff) }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1300, 0xff, 0xff, 0xff) }, + { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1402, 0xff, 0xff, 0xff), + .driver_info = (kernel_ulong_t)&net_intf2_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2002, 0xff, 0xff, 0xff), .driver_info = (kernel_ulong_t)&zte_k3765_z_blacklist }, { USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x2003, 0xff, 0xff, 0xff) }, -- cgit v1.2.3-59-g8ed1b From aacef9c561a693341566a6850c451ce3df68cb9a Mon Sep 17 00:00:00 2001 From: Gaosen Zhang Date: Thu, 5 Jul 2012 21:49:00 +0800 Subject: USB: option: Add MEDIATEK product ids Signed-off-by: Gaosen Zhang Cc: stable Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/option.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c index 167aed8b2488..417ab1b0aa30 100644 --- a/drivers/usb/serial/option.c +++ b/drivers/usb/serial/option.c @@ -497,6 +497,15 @@ static void option_instat_callback(struct urb *urb); /* MediaTek products */ #define MEDIATEK_VENDOR_ID 0x0e8d +#define MEDIATEK_PRODUCT_DC_1COM 0x00a0 +#define MEDIATEK_PRODUCT_DC_4COM 0x00a5 +#define MEDIATEK_PRODUCT_DC_5COM 0x00a4 +#define MEDIATEK_PRODUCT_7208_1COM 0x7101 +#define MEDIATEK_PRODUCT_7208_2COM 0x7102 +#define MEDIATEK_PRODUCT_FP_1COM 0x0003 +#define MEDIATEK_PRODUCT_FP_2COM 0x0023 +#define MEDIATEK_PRODUCT_FPDC_1COM 0x0043 +#define MEDIATEK_PRODUCT_FPDC_2COM 0x0033 /* Cellient products */ #define CELLIENT_VENDOR_ID 0x2692 @@ -1246,6 +1255,17 @@ static const struct usb_device_id option_ids[] = { { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a1, 0xff, 0x02, 0x01) }, { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a2, 0xff, 0x00, 0x00) }, { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, 0x00a2, 0xff, 0x02, 0x01) }, /* MediaTek MT6276M modem & app port */ + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_1COM, 0x0a, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_5COM, 0xff, 0x02, 0x01) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_5COM, 0xff, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM, 0xff, 0x02, 0x01) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_DC_4COM, 0xff, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_7208_1COM, 0x02, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_7208_2COM, 0x02, 0x02, 0x01) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FP_1COM, 0x0a, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FP_2COM, 0x0a, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FPDC_1COM, 0x0a, 0x00, 0x00) }, + { USB_DEVICE_AND_INTERFACE_INFO(MEDIATEK_VENDOR_ID, MEDIATEK_PRODUCT_FPDC_2COM, 0x0a, 0x00, 0x00) }, { USB_DEVICE(CELLIENT_VENDOR_ID, CELLIENT_PRODUCT_MEN200) }, { } /* Terminating entry */ }; -- cgit v1.2.3-59-g8ed1b From b7d28e32c93801d60c1a7a817f774a02b7bdde43 Mon Sep 17 00:00:00 2001 From: Johan Hovold Date: Mon, 2 Jul 2012 12:34:24 +0200 Subject: USB: metro-usb: fix tty_flip_buffer_push use Do not set low_latency flag at open as tty_flip_buffer_push must not be called in IRQ context with low_latency set. Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold Signed-off-by: Greg Kroah-Hartman --- drivers/usb/serial/metro-usb.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/usb/serial/metro-usb.c b/drivers/usb/serial/metro-usb.c index 81423f7361db..d47eb06fe463 100644 --- a/drivers/usb/serial/metro-usb.c +++ b/drivers/usb/serial/metro-usb.c @@ -222,14 +222,6 @@ static int metrousb_open(struct tty_struct *tty, struct usb_serial_port *port) metro_priv->throttled = 0; spin_unlock_irqrestore(&metro_priv->lock, flags); - /* - * Force low_latency on so that our tty_push actually forces the data - * through, otherwise it is scheduled, and with high data rates (like - * with OHCI) data can get lost. - */ - if (tty) - tty->low_latency = 1; - /* Clear the urb pipe. */ usb_clear_halt(serial->dev, port->interrupt_in_urb->pipe); -- cgit v1.2.3-59-g8ed1b From b086b6b10d9f182cd8d2f0dcfd7fd11edba93fc9 Mon Sep 17 00:00:00 2001 From: Bjørn Mork Date: Mon, 2 Jul 2012 10:33:14 +0200 Subject: USB: cdc-wdm: fix lockup on error in wdm_read MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Clear the WDM_READ flag on empty reads to avoid running forever in an infinite tight loop, causing lockups: Jul 1 21:58:11 nemi kernel: [ 3658.898647] qmi_wwan 2-1:1.2: Unexpected error -71 Jul 1 21:58:36 nemi kernel: [ 3684.072021] BUG: soft lockup - CPU#0 stuck for 23s! [qmi.pl:12235] Jul 1 21:58:36 nemi kernel: [ 3684.072212] CPU 0 Jul 1 21:58:36 nemi kernel: [ 3684.072355] Jul 1 21:58:36 nemi kernel: [ 3684.072367] Pid: 12235, comm: qmi.pl Tainted: P O 3.5.0-rc2+ #13 LENOVO 2776LEG/2776LEG Jul 1 21:58:36 nemi kernel: [ 3684.072383] RIP: 0010:[] [] spin_unlock_irq+0x8/0xc [cdc_wdm] Jul 1 21:58:36 nemi kernel: [ 3684.072388] RSP: 0018:ffff88022dca1e70 EFLAGS: 00000282 Jul 1 21:58:36 nemi kernel: [ 3684.072393] RAX: ffff88022fc3f650 RBX: ffffffff811c56f7 RCX: 00000001000ce8c1 Jul 1 21:58:36 nemi kernel: [ 3684.072398] RDX: 0000000000000010 RSI: 000000000267d810 RDI: ffff88022fc3f650 Jul 1 21:58:36 nemi kernel: [ 3684.072403] RBP: ffff88022dca1eb0 R08: ffffffffa063578e R09: 0000000000000000 Jul 1 21:58:36 nemi kernel: [ 3684.072407] R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000002 Jul 1 21:58:36 nemi kernel: [ 3684.072412] R13: 0000000000000246 R14: ffffffff00000002 R15: ffff8802281d8c88 Jul 1 21:58:36 nemi kernel: [ 3684.072418] FS: 00007f666a260700(0000) GS:ffff88023bc00000(0000) knlGS:0000000000000000 Jul 1 21:58:36 nemi kernel: [ 3684.072423] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 Jul 1 21:58:36 nemi kernel: [ 3684.072428] CR2: 000000000270d9d8 CR3: 000000022e865000 CR4: 00000000000007f0 Jul 1 21:58:36 nemi kernel: [ 3684.072433] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 Jul 1 21:58:36 nemi kernel: [ 3684.072438] DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Jul 1 21:58:36 nemi kernel: [ 3684.072444] Process qmi.pl (pid: 12235, threadinfo ffff88022dca0000, task ffff88022ff76380) Jul 1 21:58:36 nemi kernel: [ 3684.072448] Stack: Jul 1 21:58:36 nemi kernel: [ 3684.072458] ffffffffa063592e 0000000100020000 ffff88022fc3f650 ffff88022fc3f6a8 Jul 1 21:58:36 nemi kernel: [ 3684.072466] 0000000000000200 0000000100000000 000000000267d810 0000000000000000 Jul 1 21:58:36 nemi kernel: [ 3684.072475] 0000000000000000 ffff880212cfb6d0 0000000000000200 ffff880212cfb6c0 Jul 1 21:58:36 nemi kernel: [ 3684.072479] Call Trace: Jul 1 21:58:36 nemi kernel: [ 3684.072489] [] ? wdm_read+0x1a0/0x263 [cdc_wdm] Jul 1 21:58:36 nemi kernel: [ 3684.072500] [] ? vfs_read+0xa1/0xfb Jul 1 21:58:36 nemi kernel: [ 3684.072509] [] ? alarm_setitimer+0x35/0x64 Jul 1 21:58:36 nemi kernel: [ 3684.072517] [] ? sys_read+0x45/0x6e Jul 1 21:58:36 nemi kernel: [ 3684.072525] [] ? system_call_fastpath+0x16/0x1b Jul 1 21:58:36 nemi kernel: [ 3684.072557] Code: <66> 66 90 c3 83 ff ed 89 f8 74 16 7f 06 83 ff a1 75 0a c3 83 ff f4 The WDM_READ flag is normally cleared by wdm_int_callback before resubmitting the read urb, and set by wdm_in_callback when this urb returns with data or an error. But a crashing device may cause both a read error and cancelling all urbs. Make sure that the flag is cleared by wdm_read if the buffer is empty. We don't clear the flag on errors, as there may be pending data in the buffer which should be processed. The flag will instead be cleared on the next wdm_read call. Cc: stable Signed-off-by: Bjørn Mork Acked-by: Oliver Neukum Signed-off-by: Greg Kroah-Hartman --- drivers/usb/class/cdc-wdm.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 8fd398dffced..ee469274a3fe 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -500,6 +500,8 @@ retry: goto retry; } if (!desc->reslength) { /* zero length read */ + dev_dbg(&desc->intf->dev, "%s: zero length - clearing WDM_READ\n", __func__); + clear_bit(WDM_READ, &desc->flags); spin_unlock_irq(&desc->iuspin); goto retry; } -- cgit v1.2.3-59-g8ed1b From 006c7f18449a06027b0165e938c67b3a029813c9 Mon Sep 17 00:00:00 2001 From: Paul Walmsley Date: Wed, 4 Jul 2012 05:22:53 -0600 Subject: ARM: OMAP2+: hwmod code/clockdomain data: fix 32K sync timer MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Kevin discovered that commit c8d82ff68fb6873691536cf33021977efbf5593c ("ARM: OMAP2/3: hwmod data: Add 32k-sync timer data to hwmod database") broke CORE idle on OMAP3. This prevents device low power states. The root cause is that the 32K sync timer IP block does not support smart-idle mode[1], and so the hwmod code keeps the IP block in no-idle mode while it is active. This in turn prevents the WKUP clockdomain from transitioning to idle. There is a hardcoded sleep dependency that prevents the CORE_L3 and CORE_CM clockdomains from transitioning to idle when the WKUP clockdomain is active[2], so the chip cannot enter any device low power states. It turns out that there is no need to take the 32k sync timer out of idle. The IP block itself probably does not have any native idle handling at all, due to its simplicity. Furthermore, the PRCM will never request target idle for this IP block while the kernel is running, due to the sleep dependency that prevents the WKUP clockdomain from idling while the CORE_L3 clockdomain is active. So we can safely leave the 32k sync timer in target-force-idle mode, even while we continue to access it. This workaround is implemented by defining a new clockdomain flag, CLKDM_ACTIVE_WITH_MPU, that indicates that the clockdomain is guaranteed to be active whenever the MPU is inactive. If an IP block's main functional clock exists inside this clockdomain, and the IP block does not support smart-idle modes, then the hwmod code will place the IP block into target force-idle mode even when enabled. The WKUP clockdomains on OMAP3/4 are marked with this flag. (On OMAP2xxx, no OCP header existed on the 32k sync timer.) Other clockdomains also should be marked with this flag, but those changes are deferred until a later merge window, to create a minimal fix. Another theoretically clean fix for this problem would be to implement PM runtime-based control for 32k sync timer accesses. These PM runtime calls would need to located in a custom clocksource, since the 32k sync timer is currently used as an MMIO clocksource. But in practice, there would be little benefit to doing so; and there would be some cost, due to the addition of unnecessary lines of code and the additional CPU overhead of the PM runtime and hwmod code - unnecessary in this case. Another possible fix would have been to modify the pm34xx.c code to force the IP block idle before entering WFI. But this would not have been an acceptable approach: we are trying to remove this type of centralized IP block idle control from the PM code. This patch is a collaboration between Kevin Hilman and Paul Walmsley . Thanks to Vaibhav Hiremath for providing comments on an earlier version of this patch. Thanks to Tero Kristo for identifying a bug in an earlier version of this patch. Thanks to Benoît Cousson for identifying some bugs in several versions of this patch and for implementation comments. References: 1. Table 16-96 "REG_32KSYNCNT_SYSCONFIG" of the OMAP34xx TRM Rev. ZU (SWPU223U), available from: http://www.ti.com/pdfs/wtbu/OMAP34x_ES3.1.x_PUBLIC_TRM_vzU.zip 2. Table 4-72 "Sleep Dependencies" of the OMAP34xx TRM Rev. ZU (SWPU223U) 3. ibid. Cc: Tony Lindgren Cc: Vaibhav Hiremath Cc: Benoît Cousson Cc: Tero Kristo Tested-by: Kevin Hilman Signed-off-by: Paul Walmsley Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/clockdomain.h | 4 +++ arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c | 1 + arch/arm/mach-omap2/clockdomains44xx_data.c | 2 +- arch/arm/mach-omap2/omap_hwmod.c | 32 ++++++++++++++++++------ 4 files changed, 30 insertions(+), 9 deletions(-) diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockdomain.h index f7b58609bad8..6227e9505c2d 100644 --- a/arch/arm/mach-omap2/clockdomain.h +++ b/arch/arm/mach-omap2/clockdomain.h @@ -31,12 +31,16 @@ * * CLKDM_NO_AUTODEPS: Prevent "autodeps" from being added/removed from this * clockdomain. (Currently, this applies to OMAP3 clockdomains only.) + * CLKDM_ACTIVE_WITH_MPU: The PRCM guarantees that this clockdomain is + * active whenever the MPU is active. True for interconnects and + * the WKUP clockdomains. */ #define CLKDM_CAN_FORCE_SLEEP (1 << 0) #define CLKDM_CAN_FORCE_WAKEUP (1 << 1) #define CLKDM_CAN_ENABLE_AUTO (1 << 2) #define CLKDM_CAN_DISABLE_AUTO (1 << 3) #define CLKDM_NO_AUTODEPS (1 << 4) +#define CLKDM_ACTIVE_WITH_MPU (1 << 5) #define CLKDM_CAN_HWSUP (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_DISABLE_AUTO) #define CLKDM_CAN_SWSUP (CLKDM_CAN_FORCE_SLEEP | CLKDM_CAN_FORCE_WAKEUP) diff --git a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c index 839145e1cfbe..4972219653ce 100644 --- a/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c +++ b/arch/arm/mach-omap2/clockdomains2xxx_3xxx_data.c @@ -88,4 +88,5 @@ struct clockdomain wkup_common_clkdm = { .name = "wkup_clkdm", .pwrdm = { .name = "wkup_pwrdm" }, .dep_bit = OMAP_EN_WKUP_SHIFT, + .flags = CLKDM_ACTIVE_WITH_MPU, }; diff --git a/arch/arm/mach-omap2/clockdomains44xx_data.c b/arch/arm/mach-omap2/clockdomains44xx_data.c index c53425847493..7f2133abe7d3 100644 --- a/arch/arm/mach-omap2/clockdomains44xx_data.c +++ b/arch/arm/mach-omap2/clockdomains44xx_data.c @@ -381,7 +381,7 @@ static struct clockdomain l4_wkup_44xx_clkdm = { .cm_inst = OMAP4430_PRM_WKUP_CM_INST, .clkdm_offs = OMAP4430_PRM_WKUP_CM_WKUP_CDOFFS, .dep_bit = OMAP4430_L4WKUP_STATDEP_SHIFT, - .flags = CLKDM_CAN_HWSUP, + .flags = CLKDM_CAN_HWSUP | CLKDM_ACTIVE_WITH_MPU, }; static struct clockdomain emu_sys_44xx_clkdm = { diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c index 773193670ea2..2d710f50fca2 100644 --- a/arch/arm/mach-omap2/omap_hwmod.c +++ b/arch/arm/mach-omap2/omap_hwmod.c @@ -1124,15 +1124,18 @@ static struct omap_hwmod_addr_space * __init _find_mpu_rt_addr_space(struct omap * _enable_sysc - try to bring a module out of idle via OCP_SYSCONFIG * @oh: struct omap_hwmod * * - * If module is marked as SWSUP_SIDLE, force the module out of slave - * idle; otherwise, configure it for smart-idle. If module is marked - * as SWSUP_MSUSPEND, force the module out of master standby; - * otherwise, configure it for smart-standby. No return value. + * Ensure that the OCP_SYSCONFIG register for the IP block represented + * by @oh is set to indicate to the PRCM that the IP block is active. + * Usually this means placing the module into smart-idle mode and + * smart-standby, but if there is a bug in the automatic idle handling + * for the IP block, it may need to be placed into the force-idle or + * no-idle variants of these modes. No return value. */ static void _enable_sysc(struct omap_hwmod *oh) { u8 idlemode, sf; u32 v; + bool clkdm_act; if (!oh->class->sysc) return; @@ -1141,8 +1144,16 @@ static void _enable_sysc(struct omap_hwmod *oh) sf = oh->class->sysc->sysc_flags; if (sf & SYSC_HAS_SIDLEMODE) { - idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ? - HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART; + clkdm_act = ((oh->clkdm && + oh->clkdm->flags & CLKDM_ACTIVE_WITH_MPU) || + (oh->_clk && oh->_clk->clkdm && + oh->_clk->clkdm->flags & CLKDM_ACTIVE_WITH_MPU)); + if (clkdm_act && !(oh->class->sysc->idlemodes & + (SIDLE_SMART | SIDLE_SMART_WKUP))) + idlemode = HWMOD_IDLEMODE_FORCE; + else + idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ? + HWMOD_IDLEMODE_NO : HWMOD_IDLEMODE_SMART; _set_slave_idlemode(oh, idlemode, &v); } @@ -1208,8 +1219,13 @@ static void _idle_sysc(struct omap_hwmod *oh) sf = oh->class->sysc->sysc_flags; if (sf & SYSC_HAS_SIDLEMODE) { - idlemode = (oh->flags & HWMOD_SWSUP_SIDLE) ? - HWMOD_IDLEMODE_FORCE : HWMOD_IDLEMODE_SMART; + /* XXX What about HWMOD_IDLEMODE_SMART_WKUP? */ + if (oh->flags & HWMOD_SWSUP_SIDLE || + !(oh->class->sysc->idlemodes & + (SIDLE_SMART | SIDLE_SMART_WKUP))) + idlemode = HWMOD_IDLEMODE_FORCE; + else + idlemode = HWMOD_IDLEMODE_SMART; _set_slave_idlemode(oh, idlemode, &v); } -- cgit v1.2.3-59-g8ed1b From 9e9b594661e8dee54955607277c937c3ff3a5f01 Mon Sep 17 00:00:00 2001 From: Takashi Iwai Date: Fri, 6 Jul 2012 08:11:43 +0200 Subject: ALSA: usb-audio: Fix the first PCM interface assignment In the new PCM streaming logic, the interface number is assigned to usb stream instance (subs->interface) after the format and rate setups are succeeded, but some codes are still passing subs->interface as the reference to helper functions. This leads to initializing with an invalid iface number (-1). This patch replaces the wrong references with the ones from the target fmt correctly. Signed-off-by: Takashi Iwai --- sound/usb/pcm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/sound/usb/pcm.c b/sound/usb/pcm.c index 54607f8c4f66..f0ede134a111 100644 --- a/sound/usb/pcm.c +++ b/sound/usb/pcm.c @@ -387,7 +387,7 @@ add_sync_ep: subs->data_endpoint->sync_master = subs->sync_endpoint; } - if ((err = snd_usb_init_pitch(subs->stream->chip, subs->interface, alts, fmt)) < 0) + if ((err = snd_usb_init_pitch(subs->stream->chip, fmt->iface, alts, fmt)) < 0) return err; subs->cur_audiofmt = fmt; @@ -450,7 +450,7 @@ static int snd_usb_hw_params(struct snd_pcm_substream *substream, struct usb_interface *iface; iface = usb_ifnum_to_if(subs->dev, fmt->iface); alts = &iface->altsetting[fmt->altset_idx]; - ret = snd_usb_init_sample_rate(subs->stream->chip, subs->interface, alts, fmt, rate); + ret = snd_usb_init_sample_rate(subs->stream->chip, fmt->iface, alts, fmt, rate); if (ret < 0) return ret; subs->cur_rate = rate; -- cgit v1.2.3-59-g8ed1b From 6a6dccba2fdc2a69f1f36b8f1c0acc8598e7221b Mon Sep 17 00:00:00 2001 From: Rabin Vincent Date: Thu, 5 Jul 2012 15:52:23 +0530 Subject: mm: cma: don't replace lowmem pages with highmem The filesystem layer expects pages in the block device's mapping to not be in highmem (the mapping's gfp mask is set in bdget()), but CMA can currently replace lowmem pages with highmem pages, leading to crashes in filesystem code such as the one below: Unable to handle kernel NULL pointer dereference at virtual address 00000400 pgd = c0c98000 [00000400] *pgd=00c91831, *pte=00000000, *ppte=00000000 Internal error: Oops: 817 [#1] PREEMPT SMP ARM CPU: 0 Not tainted (3.5.0-rc5+ #80) PC is at __memzero+0x24/0x80 ... Process fsstress (pid: 323, stack limit = 0xc0cbc2f0) Backtrace: [] (ext4_getblk+0x0/0x180) from [] (ext4_bread+0x1c/0x98) [] (ext4_bread+0x0/0x98) from [] (ext4_mkdir+0x160/0x3bc) r4:c15337f0 [] (ext4_mkdir+0x0/0x3bc) from [] (vfs_mkdir+0x8c/0x98) [] (vfs_mkdir+0x0/0x98) from [] (sys_mkdirat+0x74/0xac) r6:00000000 r5:c152eb40 r4:000001ff r3:c14b43f0 [] (sys_mkdirat+0x0/0xac) from [] (sys_mkdir+0x20/0x24) r6:beccdcf0 r5:00074000 r4:beccdbbc [] (sys_mkdir+0x0/0x24) from [] (ret_fast_syscall+0x0/0x30) Fix this by replacing only highmem pages with highmem. Reported-by: Laura Abbott Signed-off-by: Rabin Vincent Acked-by: Michal Nazarewicz Signed-off-by: Marek Szyprowski --- mm/page_alloc.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 44030096da63..4a4f9219683f 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -5635,7 +5635,12 @@ static struct page * __alloc_contig_migrate_alloc(struct page *page, unsigned long private, int **resultp) { - return alloc_page(GFP_HIGHUSER_MOVABLE); + gfp_t gfp_mask = GFP_USER | __GFP_MOVABLE; + + if (PageHighMem(page)) + gfp_mask |= __GFP_HIGHMEM; + + return alloc_page(gfp_mask); } /* [start, end) must belong to a single zone. */ -- cgit v1.2.3-59-g8ed1b From cc2caea5b6152b8ce66dc2bbe83dc72b60612da8 Mon Sep 17 00:00:00 2001 From: Marek Szyprowski Date: Fri, 6 Jul 2012 12:02:04 +0200 Subject: mm: cma: fix condition check when setting global cma area dev_set_cma_area incorrectly assigned cma to global area on first call due to incorrect check. This patch fixes this issue. Signed-off-by: Marek Szyprowski --- include/asm-generic/dma-contiguous.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/asm-generic/dma-contiguous.h b/include/asm-generic/dma-contiguous.h index c544356b374b..294b1e755ab2 100644 --- a/include/asm-generic/dma-contiguous.h +++ b/include/asm-generic/dma-contiguous.h @@ -18,7 +18,7 @@ static inline void dev_set_cma_area(struct device *dev, struct cma *cma) { if (dev) dev->cma_area = cma; - if (!dev || !dma_contiguous_default_area) + if (!dev && !dma_contiguous_default_area) dma_contiguous_default_area = cma; } -- cgit v1.2.3-59-g8ed1b From 95c0d71dcb853c2eca5f2231ebbd4c1d3af775b7 Mon Sep 17 00:00:00 2001 From: Namhyung Kim Date: Tue, 3 Jul 2012 23:37:31 +0900 Subject: MAINTAINERS/sched: Update scheduler file pattern The commit 391e43da797a ("sched: Move all scheduler bits into kernel/sched/") moved all scheduler codes to the kernel/sched/ directory, but missed the MAINTAINERS. Since it still expects files from kernel/ directory, get_maintainer script has to rely on the git (log) fallback mechanism. $ scripts/get_maintainer.pl -f kernel/sched/core.c --nogit-fallback linux-kernel@vger.kernel.org (open list) With this patch: $ scripts/get_maintainer.pl -f kernel/sched/core.c --nogit-fallback Ingo Molnar (maintainer:SCHEDULER) Peter Zijlstra (maintainer:SCHEDULER) linux-kernel@vger.kernel.org (open list) Signed-off-by: Namhyung Kim Acked-by: Peter Zijlstra Link: http://lkml.kernel.org/r/1341326251-4140-1-git-send-email-namhyung@kernel.org Signed-off-by: Ingo Molnar --- MAINTAINERS | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/MAINTAINERS b/MAINTAINERS index 03df1d15ebf3..214d75489640 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -5909,7 +5909,7 @@ M: Ingo Molnar M: Peter Zijlstra T: git git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git sched/core S: Maintained -F: kernel/sched* +F: kernel/sched/ F: include/linux/sched.h SCORE ARCHITECTURE -- cgit v1.2.3-59-g8ed1b From 48f8b641297df49021093763a3271119a84990a2 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Sat, 9 Jun 2012 19:08:25 +0300 Subject: mtd: cafe_nand: fix an & vs | mistake The intent here was clearly to set result to true if the 0x40000000 flag was set. But instead there was a | vs & typo and we always set result to true. Artem: check the spec at wiki.laptop.org/images/5/5c/88ALP01_Datasheet_July_2007.pdf and this fix looks correct. Signed-off-by: Dan Carpenter Cc: stable@vger.kernel.org Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/cafe_nand.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index 41371ba1a811..f3f6cfedd69e 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -102,7 +102,7 @@ static const char *part_probes[] = { "cmdlinepart", "RedBoot", NULL }; static int cafe_device_ready(struct mtd_info *mtd) { struct cafe_priv *cafe = mtd->priv; - int result = !!(cafe_readl(cafe, NAND_STATUS) | 0x40000000); + int result = !!(cafe_readl(cafe, NAND_STATUS) & 0x40000000); uint32_t irqs = cafe_readl(cafe, NAND_IRQ); cafe_writel(cafe, irqs, NAND_IRQ); -- cgit v1.2.3-59-g8ed1b From 096bcc231fd263bc8df215f0d616b08e3696c6db Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Tue, 29 May 2012 10:16:09 +0200 Subject: mtd: mxc_nand: use 32bit copy functions MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit The following commit changes the function used to copy from/to the hardware buffer to memcpy_[from|to]io. This does not work since the hardware cannot handle the byte accesses used by these functions. Instead of reverting this patch introduce 32bit correspondents of these functions. | commit 5775ba36ea9c760c2d7e697dac04f2f7fc95aa62 | Author: Uwe Kleine-König | Date: Tue Apr 24 10:05:22 2012 +0200 | | mtd: mxc_nand: fix several sparse warnings about incorrect address space | | Signed-off-by: Uwe Kleine-König | Signed-off-by: Artem Bityutskiy Signed-off-by: Sascha Hauer Cc: Uwe Kleine-König Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/mxc_nand.c | 37 +++++++++++++++++++++++++++++-------- 1 file changed, 29 insertions(+), 8 deletions(-) diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index c58e6a93f445..6acc790c2fbb 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -273,6 +273,26 @@ static struct nand_ecclayout nandv2_hw_eccoob_4k = { static const char *part_probes[] = { "RedBoot", "cmdlinepart", "ofpart", NULL }; +static void memcpy32_fromio(void *trg, const void __iomem *src, size_t size) +{ + int i; + u32 *t = trg; + const __iomem u32 *s = src; + + for (i = 0; i < (size >> 2); i++) + *t++ = __raw_readl(s++); +} + +static void memcpy32_toio(void __iomem *trg, const void *src, int size) +{ + int i; + u32 __iomem *t = trg; + const u32 *s = src; + + for (i = 0; i < (size >> 2); i++) + __raw_writel(*s++, t++); +} + static int check_int_v3(struct mxc_nand_host *host) { uint32_t tmp; @@ -519,7 +539,7 @@ static void send_read_id_v3(struct mxc_nand_host *host) wait_op_done(host, true); - memcpy_fromio(host->data_buf, host->main_area0, 16); + memcpy32_fromio(host->data_buf, host->main_area0, 16); } /* Request the NANDFC to perform a read of the NAND device ID. */ @@ -535,7 +555,7 @@ static void send_read_id_v1_v2(struct mxc_nand_host *host) /* Wait for operation to complete */ wait_op_done(host, true); - memcpy_fromio(host->data_buf, host->main_area0, 16); + memcpy32_fromio(host->data_buf, host->main_area0, 16); if (this->options & NAND_BUSWIDTH_16) { /* compress the ID info */ @@ -797,16 +817,16 @@ static void copy_spare(struct mtd_info *mtd, bool bfrom) if (bfrom) { for (i = 0; i < n - 1; i++) - memcpy_fromio(d + i * j, s + i * t, j); + memcpy32_fromio(d + i * j, s + i * t, j); /* the last section */ - memcpy_fromio(d + i * j, s + i * t, mtd->oobsize - i * j); + memcpy32_fromio(d + i * j, s + i * t, mtd->oobsize - i * j); } else { for (i = 0; i < n - 1; i++) - memcpy_toio(&s[i * t], &d[i * j], j); + memcpy32_toio(&s[i * t], &d[i * j], j); /* the last section */ - memcpy_toio(&s[i * t], &d[i * j], mtd->oobsize - i * j); + memcpy32_toio(&s[i * t], &d[i * j], mtd->oobsize - i * j); } } @@ -1070,7 +1090,8 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, host->devtype_data->send_page(mtd, NFC_OUTPUT); - memcpy_fromio(host->data_buf, host->main_area0, mtd->writesize); + memcpy32_fromio(host->data_buf, host->main_area0, + mtd->writesize); copy_spare(mtd, true); break; @@ -1086,7 +1107,7 @@ static void mxc_nand_command(struct mtd_info *mtd, unsigned command, break; case NAND_CMD_PAGEPROG: - memcpy_toio(host->main_area0, host->data_buf, mtd->writesize); + memcpy32_toio(host->main_area0, host->data_buf, mtd->writesize); copy_spare(mtd, false); host->devtype_data->send_page(mtd, NFC_INPUT); host->devtype_data->send_cmd(host, command, true); -- cgit v1.2.3-59-g8ed1b From 6023813a2d5949ba368e7df464f2ccb649719777 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Tue, 26 Jun 2012 17:26:16 +0200 Subject: mtd: gpmi-nand: fix read page when reading to vmalloced area The gpmi-nand driver uses virt_addr_valid() to check whether a buffer is suitable for dma. If it's not, a driver allocated buffer is used instead. Then after a page read the driver allocated buffer must be copied to the user supplied buffer. This does not happen since commit 7725cc85932bd02dd12c23108e0ef748c551ccba. This patch fixes the issue. The bug is encountered with UBI which uses a vmalloced buffer for the volume table. Signed-off-by: Sascha Hauer Tested-by: snijsure@grid-net.com Acked-by: Huang Shijie Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/gpmi-nand/gpmi-nand.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index a05b7b444d4f..a6cad5caba78 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -920,12 +920,12 @@ static int gpmi_ecc_read_page(struct mtd_info *mtd, struct nand_chip *chip, */ memset(chip->oob_poi, ~0, mtd->oobsize); chip->oob_poi[0] = ((uint8_t *) auxiliary_virt)[0]; - - read_page_swap_end(this, buf, mtd->writesize, - this->payload_virt, this->payload_phys, - nfc_geo->payload_size, - payload_virt, payload_phys); } + + read_page_swap_end(this, buf, mtd->writesize, + this->payload_virt, this->payload_phys, + nfc_geo->payload_size, + payload_virt, payload_phys); exit_nfc: return ret; } -- cgit v1.2.3-59-g8ed1b From 021796b892dcad45743f3196e3eef7222870dd55 Mon Sep 17 00:00:00 2001 From: Mike Dunn Date: Tue, 22 May 2012 11:03:42 -0700 Subject: mtd: ABI documentation: clarification of bitflip_threshold The -EUCLEAN return value applies to mtd_read_oob() as well as mtd_read(), but only mtd_read() was mentioned in the blurd on bitflip_threshold in the ABI documentation. Signed-off-by: Mike Dunn Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- Documentation/ABI/testing/sysfs-class-mtd | 17 +++++++++-------- 1 file changed, 9 insertions(+), 8 deletions(-) diff --git a/Documentation/ABI/testing/sysfs-class-mtd b/Documentation/ABI/testing/sysfs-class-mtd index db1ad7e34fc3..938ef71e2035 100644 --- a/Documentation/ABI/testing/sysfs-class-mtd +++ b/Documentation/ABI/testing/sysfs-class-mtd @@ -142,13 +142,14 @@ KernelVersion: 3.4 Contact: linux-mtd@lists.infradead.org Description: This allows the user to examine and adjust the criteria by which - mtd returns -EUCLEAN from mtd_read(). If the maximum number of - bit errors that were corrected on any single region comprising - an ecc step (as reported by the driver) equals or exceeds this - value, -EUCLEAN is returned. Otherwise, absent an error, 0 is - returned. Higher layers (e.g., UBI) use this return code as an - indication that an erase block may be degrading and should be - scrutinized as a candidate for being marked as bad. + mtd returns -EUCLEAN from mtd_read() and mtd_read_oob(). If the + maximum number of bit errors that were corrected on any single + region comprising an ecc step (as reported by the driver) equals + or exceeds this value, -EUCLEAN is returned. Otherwise, absent + an error, 0 is returned. Higher layers (e.g., UBI) use this + return code as an indication that an erase block may be + degrading and should be scrutinized as a candidate for being + marked as bad. The initial value may be specified by the flash device driver. If not, then the default value is ecc_strength. @@ -167,7 +168,7 @@ Description: block degradation, but high enough to avoid the consequences of a persistent return value of -EUCLEAN on devices where sticky bitflips occur. Note that if bitflip_threshold exceeds - ecc_strength, -EUCLEAN is never returned by mtd_read(). + ecc_strength, -EUCLEAN is never returned by the read operations. Conversely, if bitflip_threshold is zero, -EUCLEAN is always returned, absent a hard error. -- cgit v1.2.3-59-g8ed1b From 596fd46268634082314b3af1ded4612e1b7f3f03 Mon Sep 17 00:00:00 2001 From: Herton Ronaldo Krzesinski Date: Wed, 16 May 2012 16:21:52 -0300 Subject: mtd: nandsim: don't open code a do_div helper We don't need to open code the divide function, just use div_u64 that already exists and do the same job. While this is a straightforward clean up, there is more to that, the real motivation for this. While building on a cross compiling environment in armel, using gcc 4.6.3 (Ubuntu/Linaro 4.6.3-1ubuntu5), I was getting the following build error: ERROR: "__aeabi_uldivmod" [drivers/mtd/nand/nandsim.ko] undefined! After investigating with objdump and hand built assembly version generated with the compiler, I narrowed __aeabi_uldivmod as being generated from the divide function. When nandsim.c is built with -fno-inline-functions-called-once, that happens when CONFIG_DEBUG_SECTION_MISMATCH is enabled, the do_div optimization in arch/arm/include/asm/div64.h doesn't work as expected with the open coded divide function: even if the do_div we are using doesn't have a constant divisor, the compiler still includes the else parts of the optimized do_div macro, and translates the divisions there to use __aeabi_uldivmod, instead of only calling __do_div_asm -> __do_div64 and optimizing/removing everything else out. So to reproduce, gcc 4.6 plus CONFIG_DEBUG_SECTION_MISMATCH=y and CONFIG_MTD_NAND_NANDSIM=m should do it, building on armel. After this change, the compiler does the intended thing even with -fno-inline-functions-called-once, and optimizes out as expected the constant handling in the optimized do_div on arm. As this also avoids a build issue, I'm marking for Stable, as I think is applicable for this case. Signed-off-by: Herton Ronaldo Krzesinski Cc: stable@vger.kernel.org Acked-by: Nicolas Pitre Signed-off-by: Artem Bityutskiy Signed-off-by: David Woodhouse --- drivers/mtd/nand/nandsim.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index 6cc8fbfabb8e..cf0cd3146817 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -28,7 +28,7 @@ #include #include #include -#include +#include #include #include #include @@ -546,12 +546,6 @@ static char *get_partition_name(int i) return kstrdup(buf, GFP_KERNEL); } -static uint64_t divide(uint64_t n, uint32_t d) -{ - do_div(n, d); - return n; -} - /* * Initialize the nandsim structure. * @@ -580,7 +574,7 @@ static int init_nandsim(struct mtd_info *mtd) ns->geom.oobsz = mtd->oobsize; ns->geom.secsz = mtd->erasesize; ns->geom.pgszoob = ns->geom.pgsz + ns->geom.oobsz; - ns->geom.pgnum = divide(ns->geom.totsz, ns->geom.pgsz); + ns->geom.pgnum = div_u64(ns->geom.totsz, ns->geom.pgsz); ns->geom.totszoob = ns->geom.totsz + (uint64_t)ns->geom.pgnum * ns->geom.oobsz; ns->geom.secshift = ffs(ns->geom.secsz) - 1; ns->geom.pgshift = chip->page_shift; @@ -921,7 +915,7 @@ static int setup_wear_reporting(struct mtd_info *mtd) if (!rptwear) return 0; - wear_eb_count = divide(mtd->size, mtd->erasesize); + wear_eb_count = div_u64(mtd->size, mtd->erasesize); mem = wear_eb_count * sizeof(unsigned long); if (mem / sizeof(unsigned long) != wear_eb_count) { NS_ERR("Too many erase blocks for wear reporting\n"); -- cgit v1.2.3-59-g8ed1b From 5c53d819c71c63fdc91f30a59164583f68e2d63a Mon Sep 17 00:00:00 2001 From: liu chuansheng Date: Fri, 6 Jul 2012 09:50:08 -0700 Subject: printk: replacing the raw_spin_lock/unlock with raw_spin_lock/unlock_irq In function devkmsg_read/writev/llseek/poll/open()..., the function raw_spin_lock/unlock is used, there is potential deadlock case happening. CPU1: thread1 doing the cat /dev/kmsg: raw_spin_lock(&logbuf_lock); while (user->seq == log_next_seq) { when thread1 run here, at this time one interrupt is coming on CPU1 and running based on this thread,if the interrupt handle called the printk which need the logbuf_lock spin also, it will cause deadlock. So we should use raw_spin_lock/unlock_irq here. Acked-by: Kay Sievers Signed-off-by: liu chuansheng Signed-off-by: Greg Kroah-Hartman --- kernel/printk.c | 24 ++++++++++++------------ 1 file changed, 12 insertions(+), 12 deletions(-) diff --git a/kernel/printk.c b/kernel/printk.c index dba18211685e..12886cd19cd9 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -430,20 +430,20 @@ static ssize_t devkmsg_read(struct file *file, char __user *buf, ret = mutex_lock_interruptible(&user->lock); if (ret) return ret; - raw_spin_lock(&logbuf_lock); + raw_spin_lock_irq(&logbuf_lock); while (user->seq == log_next_seq) { if (file->f_flags & O_NONBLOCK) { ret = -EAGAIN; - raw_spin_unlock(&logbuf_lock); + raw_spin_unlock_irq(&logbuf_lock); goto out; } - raw_spin_unlock(&logbuf_lock); + raw_spin_unlock_irq(&logbuf_lock); ret = wait_event_interruptible(log_wait, user->seq != log_next_seq); if (ret) goto out; - raw_spin_lock(&logbuf_lock); + raw_spin_lock_irq(&logbuf_lock); } if (user->seq < log_first_seq) { @@ -451,7 +451,7 @@ static ssize_t devkmsg_read(struct file *file, char __user *buf, user->idx = log_first_idx; user->seq = log_first_seq; ret = -EPIPE; - raw_spin_unlock(&logbuf_lock); + raw_spin_unlock_irq(&logbuf_lock); goto out; } @@ -501,7 +501,7 @@ static ssize_t devkmsg_read(struct file *file, char __user *buf, user->idx = log_next(user->idx); user->seq++; - raw_spin_unlock(&logbuf_lock); + raw_spin_unlock_irq(&logbuf_lock); if (len > count) { ret = -EINVAL; @@ -528,7 +528,7 @@ static loff_t devkmsg_llseek(struct file *file, loff_t offset, int whence) if (offset) return -ESPIPE; - raw_spin_lock(&logbuf_lock); + raw_spin_lock_irq(&logbuf_lock); switch (whence) { case SEEK_SET: /* the first record */ @@ -552,7 +552,7 @@ static loff_t devkmsg_llseek(struct file *file, loff_t offset, int whence) default: ret = -EINVAL; } - raw_spin_unlock(&logbuf_lock); + raw_spin_unlock_irq(&logbuf_lock); return ret; } @@ -566,14 +566,14 @@ static unsigned int devkmsg_poll(struct file *file, poll_table *wait) poll_wait(file, &log_wait, wait); - raw_spin_lock(&logbuf_lock); + raw_spin_lock_irq(&logbuf_lock); if (user->seq < log_next_seq) { /* return error when data has vanished underneath us */ if (user->seq < log_first_seq) ret = POLLIN|POLLRDNORM|POLLERR|POLLPRI; ret = POLLIN|POLLRDNORM; } - raw_spin_unlock(&logbuf_lock); + raw_spin_unlock_irq(&logbuf_lock); return ret; } @@ -597,10 +597,10 @@ static int devkmsg_open(struct inode *inode, struct file *file) mutex_init(&user->lock); - raw_spin_lock(&logbuf_lock); + raw_spin_lock_irq(&logbuf_lock); user->idx = log_first_idx; user->seq = log_first_seq; - raw_spin_unlock(&logbuf_lock); + raw_spin_unlock_irq(&logbuf_lock); file->private_data = user; return 0; -- cgit v1.2.3-59-g8ed1b From e3f5a5f27153228569f3396049838e9727dae86e Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Fri, 6 Jul 2012 09:50:09 -0700 Subject: kmsg: escape the backslash character while exporting data Non-printable characters in the log data are hex-escaped to ensure safe post processing. We need to escape a backslash we find in the data, to be able to distinguish it from a backslash we add for the escaping. Also escape the non-printable character 127. Thanks to Miloslav Trmac for the heads up. Reported-by: Michael Neuling Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- kernel/printk.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/kernel/printk.c b/kernel/printk.c index 12886cd19cd9..505863aa3a7f 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -465,7 +465,7 @@ static ssize_t devkmsg_read(struct file *file, char __user *buf, for (i = 0; i < msg->text_len; i++) { unsigned char c = log_text(msg)[i]; - if (c < ' ' || c >= 128) + if (c < ' ' || c >= 127 || c == '\\') len += sprintf(user->buf + len, "\\x%02x", c); else user->buf[len++] = c; @@ -489,7 +489,7 @@ static ssize_t devkmsg_read(struct file *file, char __user *buf, continue; } - if (c < ' ' || c >= 128) { + if (c < ' ' || c >= 127 || c == '\\') { len += sprintf(user->buf + len, "\\x%02x", c); continue; } -- cgit v1.2.3-59-g8ed1b From 43a73a50b352cd3df25b3ced72033942a6a0f919 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Fri, 6 Jul 2012 09:50:09 -0700 Subject: kmsg: add the facility number to the syslog prefix After the recent split of facility and level into separate variables, we miss the facility value (always 0 for kernel-originated messages) in the syslog prefix. On Tue, Jul 3, 2012 at 12:45 PM, Dan Carpenter wrote: > Static checkers complain about the impossible condition here. > > In 084681d14e ('printk: flush continuation lines immediately to > console'), we changed msg->level from being a u16 to being an unsigned > 3 bit bitfield. Cc: Dan Carpenter Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- kernel/printk.c | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/kernel/printk.c b/kernel/printk.c index 505863aa3a7f..37cde752cb8a 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -818,15 +818,18 @@ static size_t print_time(u64 ts, char *buf) static size_t print_prefix(const struct log *msg, bool syslog, char *buf) { size_t len = 0; + unsigned int prefix = (msg->facility << 3) | msg->level; if (syslog) { if (buf) { - len += sprintf(buf, "<%u>", msg->level); + len += sprintf(buf, "<%u>", prefix); } else { len += 3; - if (msg->level > 9) - len++; - if (msg->level > 99) + if (prefix > 999) + len += 3; + else if (prefix > 99) + len += 2; + else if (prefix > 9) len++; } } -- cgit v1.2.3-59-g8ed1b From cb424ffe9f45ad80267f2a98fbd9bf21caa0ce22 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Fri, 6 Jul 2012 09:50:09 -0700 Subject: kmsg: properly handle concurrent non-blocking read() from /proc/kmsg The /proc/kmsg read() interface is internally simply wired up to a sequence of syslog() syscalls, which might are racy between their checks and actions, regarding concurrency. In the (very uncommon) case of concurrent readers of /dev/kmsg, relying on usual O_NONBLOCK behavior, the recently introduced mutex might block an O_NONBLOCK reader in read(), when poll() returns for it, but another process has already read the data in the meantime. We've seen that while running artificial test setups and tools that "fight" about /proc/kmsg data. This restores the original /proc/kmsg behavior, where in case of concurrent read()s, poll() might wake up but the read() syscall will just return 0 to the caller, while another process has "stolen" the data. This is in the general case not the expected behavior, but it is the exact same one, that can easily be triggered with a 3.4 kernel, and some tools might just rely on it. The mutex is not needed, the original integrity issue which introduced it, is in the meantime covered by: "fill buffer with more than a single message for SYSLOG_ACTION_READ" 116e90b23f74d303e8d607c7a7d54f60f14ab9f2 Cc: Yuanhan Liu Acked-by: Jan Beulich Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- kernel/printk.c | 9 +-------- 1 file changed, 1 insertion(+), 8 deletions(-) diff --git a/kernel/printk.c b/kernel/printk.c index 37cde752cb8a..be9a82b2f0b3 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -1021,7 +1021,6 @@ int do_syslog(int type, char __user *buf, int len, bool from_file) { bool clear = false; static int saved_console_loglevel = -1; - static DEFINE_MUTEX(syslog_mutex); int error; error = check_syslog_permissions(type, from_file); @@ -1048,17 +1047,11 @@ int do_syslog(int type, char __user *buf, int len, bool from_file) error = -EFAULT; goto out; } - error = mutex_lock_interruptible(&syslog_mutex); - if (error) - goto out; error = wait_event_interruptible(log_wait, syslog_seq != log_next_seq); - if (error) { - mutex_unlock(&syslog_mutex); + if (error) goto out; - } error = syslog_print(buf, len); - mutex_unlock(&syslog_mutex); break; /* Read/clear last kernel messages */ case SYSLOG_ACTION_READ_CLEAR: -- cgit v1.2.3-59-g8ed1b From 68b6507dc554ba015b5ed5e13b1ed4993cdf4024 Mon Sep 17 00:00:00 2001 From: Kay Sievers Date: Fri, 6 Jul 2012 09:50:09 -0700 Subject: kmsg: make sure all messages reach a newly registered boot console We suppress printing kmsg records to the console, which are already printed immediately while we have received their fragments. Newly registered boot consoles print the entire kmsg buffer during registration. Clear the console-suppress flag after we skipped the record during its first storage, so any later print will see these records as usual. Signed-off-by: Kay Sievers Signed-off-by: Greg Kroah-Hartman --- kernel/printk.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/kernel/printk.c b/kernel/printk.c index be9a82b2f0b3..f02f1f5ddc30 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -1953,6 +1953,12 @@ skip: */ console_idx = log_next(console_idx); console_seq++; + /* + * We will get here again when we register a new + * CON_PRINTBUFFER console. Clear the flag so we + * will properly dump everything later. + */ + msg->flags &= ~LOG_NOCONS; goto skip; } -- cgit v1.2.3-59-g8ed1b From 9ab4233dd08036fe34a89c7dc6f47a8bf2eb29eb Mon Sep 17 00:00:00 2001 From: Andy Lutomirski Date: Thu, 5 Jul 2012 16:00:11 -0700 Subject: mm: Hold a file reference in madvise_remove Otherwise the code races with munmap (causing a use-after-free of the vma) or with close (causing a use-after-free of the struct file). The bug was introduced by commit 90ed52ebe481 ("[PATCH] holepunch: fix mmap_sem i_mutex deadlock") Cc: Hugh Dickins Cc: Miklos Szeredi Cc: Badari Pulavarty Cc: Nick Piggin Cc: stable@vger.kernel.org Signed-off-by: Andy Lutomirski Signed-off-by: Linus Torvalds --- mm/madvise.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/mm/madvise.c b/mm/madvise.c index deff1b64a08c..14d260fa0d17 100644 --- a/mm/madvise.c +++ b/mm/madvise.c @@ -15,6 +15,7 @@ #include #include #include +#include /* * Any behaviour which results in changes to the vma->vm_flags needs to @@ -204,14 +205,16 @@ static long madvise_remove(struct vm_area_struct *vma, { loff_t offset; int error; + struct file *f; *prev = NULL; /* tell sys_madvise we drop mmap_sem */ if (vma->vm_flags & (VM_LOCKED|VM_NONLINEAR|VM_HUGETLB)) return -EINVAL; - if (!vma->vm_file || !vma->vm_file->f_mapping - || !vma->vm_file->f_mapping->host) { + f = vma->vm_file; + + if (!f || !f->f_mapping || !f->f_mapping->host) { return -EINVAL; } @@ -221,11 +224,18 @@ static long madvise_remove(struct vm_area_struct *vma, offset = (loff_t)(start - vma->vm_start) + ((loff_t)vma->vm_pgoff << PAGE_SHIFT); - /* filesystem's fallocate may need to take i_mutex */ + /* + * Filesystem's fallocate may need to take i_mutex. We need to + * explicitly grab a reference because the vma (and hence the + * vma's reference to the file) can go away as soon as we drop + * mmap_sem. + */ + get_file(f); up_read(¤t->mm->mmap_sem); - error = do_fallocate(vma->vm_file, + error = do_fallocate(f, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE, offset, end - start); + fput(f); down_read(¤t->mm->mmap_sem); return error; } -- cgit v1.2.3-59-g8ed1b From 84774e615749acfce6b2f679b95924dffb5f5de1 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Thu, 5 Jul 2012 15:15:36 +0100 Subject: of: address: Don't fail a lookup just because a node has no reg property Sometimes it doesn't make any sense for a node to have an address. In this case device lookup will always be unsuccessful because we currently assume every node will have a reg property. This patch changes the semantics so that the resource address and the lookup address will only be compared if one exists. Things like AUXDATA() rely on of_dev_lookup to return the lookup entry of a particular device in order to do things like apply platform_data to a device. However, this is currently broken for nodes which do not have a reg property, meaning that platform_data can not be passed in those cases. Acked-by: Rob Herring Acked-by: Arnd Bergmann Signed-off-by: Lee Jones --- drivers/of/platform.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/of/platform.c b/drivers/of/platform.c index 343ad29e211c..96004807dd28 100644 --- a/drivers/of/platform.c +++ b/drivers/of/platform.c @@ -317,10 +317,9 @@ static const struct of_dev_auxdata *of_dev_lookup(const struct of_dev_auxdata *l for(; lookup->compatible != NULL; lookup++) { if (!of_device_is_compatible(np, lookup->compatible)) continue; - if (of_address_to_resource(np, 0, &res)) - continue; - if (res.start != lookup->phys_addr) - continue; + if (!of_address_to_resource(np, 0, &res)) + if (res.start != lookup->phys_addr) + continue; pr_debug("%s: devname=%s\n", np->full_name, lookup->name); return lookup; } -- cgit v1.2.3-59-g8ed1b From c57920e6c23350b08c1b05606aafe356ebc6d8cc Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Fri, 15 Jun 2012 09:27:54 +0100 Subject: ARM: ux500: Fix build errors/warnings when MACH_UX500_DT is not set MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit When MACH_UX500_DT and all related Device Tree configurations are forced off the warning and error below prevent the kernel from compiling. This simple patch fixes both issues and allows for full build and boot of ST-Ericsson's low-cost development board, Snowball. Warnings fixed: arch/arm/mach-ux500/board-mop500.c:680:32: warning: ‘snowball_of_platform_devs’ defined but not used Errors fixed: arch/arm/mach-ux500/timer.c: In function ‘ux500_timer_init’: arch/arm/mach-ux500/timer.c:66:3: error: implicit declaration of function ‘of_find_matching_node’ arch/arm/mach-ux500/timer.c:66:6: warning: assignment makes pointer from integer without a cast Cc: stable@vger.kernel.org Acked-by: Linus Walleij Signed-off-by: Lee Jones --- arch/arm/mach-ux500/board-mop500.c | 10 +++++----- arch/arm/mach-ux500/timer.c | 2 ++ 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c index 1509a3cb5833..461012a16e74 100644 --- a/arch/arm/mach-ux500/board-mop500.c +++ b/arch/arm/mach-ux500/board-mop500.c @@ -625,11 +625,6 @@ static struct platform_device *snowball_platform_devs[] __initdata = { &ab8500_device, }; -static struct platform_device *snowball_of_platform_devs[] __initdata = { - &snowball_led_dev, - &snowball_key_dev, -}; - static void __init mop500_init_machine(void) { struct device *parent = NULL; @@ -769,6 +764,11 @@ MACHINE_END #ifdef CONFIG_MACH_UX500_DT +static struct platform_device *snowball_of_platform_devs[] __initdata = { + &snowball_led_dev, + &snowball_key_dev, +}; + struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = { /* Requires DMA and call-back bindings. */ OF_DEV_AUXDATA("arm,pl011", 0x80120000, "uart0", &uart0_plat), diff --git a/arch/arm/mach-ux500/timer.c b/arch/arm/mach-ux500/timer.c index 741e71feca78..66e7f00884ab 100644 --- a/arch/arm/mach-ux500/timer.c +++ b/arch/arm/mach-ux500/timer.c @@ -63,8 +63,10 @@ static void __init ux500_timer_init(void) /* TODO: Once MTU has been DT:ed place code above into else. */ if (of_have_populated_dt()) { +#ifdef CONFIG_OF np = of_find_matching_node(NULL, prcmu_timer_of_match); if (!np) +#endif goto dt_fail; tmp_base = of_iomap(np, 0); -- cgit v1.2.3-59-g8ed1b From 2b667a2d8005e7c8362a77365cedbcd71fa5d6c1 Mon Sep 17 00:00:00 2001 From: Lee Jones Date: Fri, 6 Jul 2012 15:59:01 +0100 Subject: ARM: ux500: Over-ride the DT device naming scheme for pinctrl When pin control mapping tables are written the registered device name is supplied for use in name-based searches within the pinctrl driver. In the case of the DB8500 the string "pinctrl-db8500" is used. However, when we register the driver with Device Tree, its naming convention uses something that looks more like "pinctrl.2". To work around the device naming inconsistencies between devices registered via platform code and the ones registered by Device Tree, we use AUXDATA to over-ride the Device Tree naming scheme. Acked-by: Linus Walleij Signed-off-by: Lee Jones --- arch/arm/mach-ux500/board-mop500.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c index 461012a16e74..4fd93f5c49ec 100644 --- a/arch/arm/mach-ux500/board-mop500.c +++ b/arch/arm/mach-ux500/board-mop500.c @@ -786,6 +786,8 @@ struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = { OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e000, "gpio.6", NULL), OF_DEV_AUXDATA("st,nomadik-gpio", 0x8011e080, "gpio.7", NULL), OF_DEV_AUXDATA("st,nomadik-gpio", 0xa03fe000, "gpio.8", NULL), + /* Requires device name bindings. */ + OF_DEV_AUXDATA("stericsson,nmk_pinctrl", 0, "pinctrl-db8500", NULL), {}, }; -- cgit v1.2.3-59-g8ed1b From 863555be0c81558b1af277addcf68acb8f778860 Mon Sep 17 00:00:00 2001 From: Mark Rustad Date: Tue, 26 Jun 2012 15:57:30 -0700 Subject: tcm_fc: Resolve suspicious RCU usage warnings Use rcu_dereference_protected to tell rcu that the ft_lport_lock is held during ft_lport_create. This resolved "suspicious RCU usage" warnings when debugging options are turned on. Signed-off-by: Mark Rustad Tested-by: Ross Brattain Cc: Signed-off-by: Nicholas Bellinger --- drivers/target/tcm_fc/tfc_sess.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/target/tcm_fc/tfc_sess.c b/drivers/target/tcm_fc/tfc_sess.c index cb99da920068..87901fa74dd7 100644 --- a/drivers/target/tcm_fc/tfc_sess.c +++ b/drivers/target/tcm_fc/tfc_sess.c @@ -58,7 +58,8 @@ static struct ft_tport *ft_tport_create(struct fc_lport *lport) struct ft_tport *tport; int i; - tport = rcu_dereference(lport->prov[FC_TYPE_FCP]); + tport = rcu_dereference_protected(lport->prov[FC_TYPE_FCP], + lockdep_is_held(&ft_lport_lock)); if (tport && tport->tpg) return tport; -- cgit v1.2.3-59-g8ed1b From 873e9f7a3b8a5ca36085437da364654bfe3e5974 Mon Sep 17 00:00:00 2001 From: Magnus Damm Date: Fri, 6 Jul 2012 17:20:05 +0900 Subject: ARM: shmobile: fix platsmp.c build when ARCH_SH73A0=n Fix build error in the case of SMP=y but ARCH_SH73A0=n introduced by: 9601e87 ARM: shmobile: fix smp build The use of of_machine_is_compatible() will link in the the SoC-specific symbols: "sh73a0_get_core_count", "sh73a0_smp_prepare_cpus", "sh73a0_secondary_init" and "sh73a0_boot_secondary". This patch adds an ugly #ifdef wrapper as a stop-gap solution. Signed-off-by: Magnus Damm Tested-by: Tested-by: Simon Horman Acked-by: "Rafael J. Wysocki" Signed-off-by: Arnd Bergmann --- arch/arm/mach-shmobile/platsmp.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/mach-shmobile/platsmp.c b/arch/arm/mach-shmobile/platsmp.c index e859fcdb3d58..fde0d23121dc 100644 --- a/arch/arm/mach-shmobile/platsmp.c +++ b/arch/arm/mach-shmobile/platsmp.c @@ -22,8 +22,13 @@ #include #include +#ifdef CONFIG_ARCH_SH73A0 #define is_sh73a0() (machine_is_ag5evm() || machine_is_kota2() || \ of_machine_is_compatible("renesas,sh73a0")) +#else +#define is_sh73a0() (0) +#endif + #define is_r8a7779() machine_is_marzen() #ifdef CONFIG_ARCH_EMEV2 -- cgit v1.2.3-59-g8ed1b From 4f1d0f1971ba37010603a3a5c763f398b888d2f4 Mon Sep 17 00:00:00 2001 From: Alan Cox Date: Wed, 4 Jul 2012 16:35:35 +0100 Subject: qla2xxx: print the right array elements in qlt_async_event Based upon Alan's patch from Coverity scan id 793583, these debug messages in qlt_async_event() should be starting from byte 0, which is always the Asynchronous Event Status Code from the parent switch statement. Also, rename reason_code -> login_code following the language used in 2500 FW spec for Port Database Changed (0x8014) -> Port Database Changed Event Mailbox Register for mailbox[2]. Signed-off-by: Alan Cox Cc: Chad Dupuis Cc: Giridhar Malavali Signed-off-by: Nicholas Bellinger --- drivers/scsi/qla2xxx/qla_target.c | 35 ++++++++++++++++++----------------- 1 file changed, 18 insertions(+), 17 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 6986552b47e6..77759c78cc21 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -3960,7 +3960,7 @@ void qlt_async_event(uint16_t code, struct scsi_qla_host *vha, { struct qla_hw_data *ha = vha->hw; struct qla_tgt *tgt = ha->tgt.qla_tgt; - int reason_code; + int login_code; ql_dbg(ql_dbg_tgt, vha, 0xe039, "scsi(%ld): ha state %d init_done %d oper_mode %d topo %d\n", @@ -4003,9 +4003,9 @@ void qlt_async_event(uint16_t code, struct scsi_qla_host *vha, { ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03b, "qla_target(%d): Async LOOP_UP occured " - "(m[1]=%x, m[2]=%x, m[3]=%x, m[4]=%x)", vha->vp_idx, - le16_to_cpu(mailbox[1]), le16_to_cpu(mailbox[2]), - le16_to_cpu(mailbox[3]), le16_to_cpu(mailbox[4])); + "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, + le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), + le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); if (tgt->link_reinit_iocb_pending) { qlt_send_notify_ack(vha, (void *)&tgt->link_reinit_iocb, 0, 0, 0, 0, 0, 0); @@ -4020,23 +4020,24 @@ void qlt_async_event(uint16_t code, struct scsi_qla_host *vha, case MBA_RSCN_UPDATE: ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03c, "qla_target(%d): Async event %#x occured " - "(m[1]=%x, m[2]=%x, m[3]=%x, m[4]=%x)", vha->vp_idx, code, - le16_to_cpu(mailbox[1]), le16_to_cpu(mailbox[2]), - le16_to_cpu(mailbox[3]), le16_to_cpu(mailbox[4])); + "(m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, code, + le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), + le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); break; case MBA_PORT_UPDATE: ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03d, "qla_target(%d): Port update async event %#x " - "occured: updating the ports database (m[1]=%x, m[2]=%x, " - "m[3]=%x, m[4]=%x)", vha->vp_idx, code, - le16_to_cpu(mailbox[1]), le16_to_cpu(mailbox[2]), - le16_to_cpu(mailbox[3]), le16_to_cpu(mailbox[4])); - reason_code = le16_to_cpu(mailbox[2]); - if (reason_code == 0x4) + "occured: updating the ports database (m[0]=%x, m[1]=%x, " + "m[2]=%x, m[3]=%x)", vha->vp_idx, code, + le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), + le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); + + login_code = le16_to_cpu(mailbox[2]); + if (login_code == 0x4) ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03e, "Async MB 2: Got PLOGI Complete\n"); - else if (reason_code == 0x7) + else if (login_code == 0x7) ql_dbg(ql_dbg_tgt_mgt, vha, 0xf03f, "Async MB 2: Port Logged Out\n"); break; @@ -4044,9 +4045,9 @@ void qlt_async_event(uint16_t code, struct scsi_qla_host *vha, default: ql_dbg(ql_dbg_tgt_mgt, vha, 0xf040, "qla_target(%d): Async event %#x occured: " - "ignore (m[1]=%x, m[2]=%x, m[3]=%x, m[4]=%x)", vha->vp_idx, - code, le16_to_cpu(mailbox[1]), le16_to_cpu(mailbox[2]), - le16_to_cpu(mailbox[3]), le16_to_cpu(mailbox[4])); + "ignore (m[0]=%x, m[1]=%x, m[2]=%x, m[3]=%x)", vha->vp_idx, + code, le16_to_cpu(mailbox[0]), le16_to_cpu(mailbox[1]), + le16_to_cpu(mailbox[2]), le16_to_cpu(mailbox[3])); break; } -- cgit v1.2.3-59-g8ed1b From 8dc6780587c99286c0d3de747a2946a76989414a Mon Sep 17 00:00:00 2001 From: Tyler Hicks Date: Mon, 11 Jun 2012 09:24:11 -0700 Subject: eCryptfs: Gracefully refuse miscdev file ops on inherited/passed files File operations on /dev/ecryptfs would BUG() when the operations were performed by processes other than the process that originally opened the file. This could happen with open files inherited after fork() or file descriptors passed through IPC mechanisms. Rather than calling BUG(), an error code can be safely returned in most situations. In ecryptfs_miscdev_release(), eCryptfs still needs to handle the release even if the last file reference is being held by a process that didn't originally open the file. ecryptfs_find_daemon_by_euid() will not be successful, so a pointer to the daemon is stored in the file's private_data. The private_data pointer is initialized when the miscdev file is opened and only used when the file is released. https://launchpad.net/bugs/994247 Signed-off-by: Tyler Hicks Reported-by: Sasha Levin Tested-by: Sasha Levin --- fs/ecryptfs/miscdev.c | 23 ++++++++++++++++------- 1 file changed, 16 insertions(+), 7 deletions(-) diff --git a/fs/ecryptfs/miscdev.c b/fs/ecryptfs/miscdev.c index 3c632ec412ec..c0038f6566d4 100644 --- a/fs/ecryptfs/miscdev.c +++ b/fs/ecryptfs/miscdev.c @@ -49,7 +49,10 @@ ecryptfs_miscdev_poll(struct file *file, poll_table *pt) mutex_lock(&ecryptfs_daemon_hash_mux); /* TODO: Just use file->private_data? */ rc = ecryptfs_find_daemon_by_euid(&daemon, euid, current_user_ns()); - BUG_ON(rc || !daemon); + if (rc || !daemon) { + mutex_unlock(&ecryptfs_daemon_hash_mux); + return -EINVAL; + } mutex_lock(&daemon->mux); mutex_unlock(&ecryptfs_daemon_hash_mux); if (daemon->flags & ECRYPTFS_DAEMON_ZOMBIE) { @@ -122,6 +125,7 @@ ecryptfs_miscdev_open(struct inode *inode, struct file *file) goto out_unlock_daemon; } daemon->flags |= ECRYPTFS_DAEMON_MISCDEV_OPEN; + file->private_data = daemon; atomic_inc(&ecryptfs_num_miscdev_opens); out_unlock_daemon: mutex_unlock(&daemon->mux); @@ -152,9 +156,9 @@ ecryptfs_miscdev_release(struct inode *inode, struct file *file) mutex_lock(&ecryptfs_daemon_hash_mux); rc = ecryptfs_find_daemon_by_euid(&daemon, euid, current_user_ns()); - BUG_ON(rc || !daemon); + if (rc || !daemon) + daemon = file->private_data; mutex_lock(&daemon->mux); - BUG_ON(daemon->pid != task_pid(current)); BUG_ON(!(daemon->flags & ECRYPTFS_DAEMON_MISCDEV_OPEN)); daemon->flags &= ~ECRYPTFS_DAEMON_MISCDEV_OPEN; atomic_dec(&ecryptfs_num_miscdev_opens); @@ -270,8 +274,16 @@ ecryptfs_miscdev_read(struct file *file, char __user *buf, size_t count, mutex_lock(&ecryptfs_daemon_hash_mux); /* TODO: Just use file->private_data? */ rc = ecryptfs_find_daemon_by_euid(&daemon, euid, current_user_ns()); - BUG_ON(rc || !daemon); + if (rc || !daemon) { + mutex_unlock(&ecryptfs_daemon_hash_mux); + return -EINVAL; + } mutex_lock(&daemon->mux); + if (task_pid(current) != daemon->pid) { + mutex_unlock(&daemon->mux); + mutex_unlock(&ecryptfs_daemon_hash_mux); + return -EPERM; + } if (daemon->flags & ECRYPTFS_DAEMON_ZOMBIE) { rc = 0; mutex_unlock(&ecryptfs_daemon_hash_mux); @@ -308,9 +320,6 @@ check_list: * message from the queue; try again */ goto check_list; } - BUG_ON(euid != daemon->euid); - BUG_ON(current_user_ns() != daemon->user_ns); - BUG_ON(task_pid(current) != daemon->pid); msg_ctx = list_first_entry(&daemon->msg_ctx_out_queue, struct ecryptfs_msg_ctx, daemon_out_list); BUG_ON(!msg_ctx); -- cgit v1.2.3-59-g8ed1b From c6a4ebb9ae30ead7684bce623955f74b17df496d Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Fri, 6 Jul 2012 23:56:00 +0200 Subject: MIPS: Provide a symbol for the legacy performance counter interrupt. Based on https://patchwork.linux-mips.org/patch/3576 - but this really deserves its own patchset and the symbol should also be used :) Signed-off-by: Ralf Baechle --- arch/mips/include/asm/irq.h | 1 + arch/mips/kernel/traps.c | 2 +- 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/arch/mips/include/asm/irq.h b/arch/mips/include/asm/irq.h index fb698dc09bc9..78dbb8a86da2 100644 --- a/arch/mips/include/asm/irq.h +++ b/arch/mips/include/asm/irq.h @@ -136,6 +136,7 @@ extern void free_irqno(unsigned int irq); * IE7. Since R2 their number has to be read from the c0_intctl register. */ #define CP0_LEGACY_COMPARE_IRQ 7 +#define CP0_LEGACY_PERFCNT_IRQ 7 extern int cp0_compare_irq; extern int cp0_compare_irq_shift; diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c index 2d0c2a277f52..f985b7292cd9 100644 --- a/arch/mips/kernel/traps.c +++ b/arch/mips/kernel/traps.c @@ -1597,7 +1597,7 @@ void __cpuinit per_cpu_trap_init(bool is_boot_cpu) cp0_perfcount_irq = -1; } else { cp0_compare_irq = CP0_LEGACY_COMPARE_IRQ; - cp0_compare_irq_shift = cp0_compare_irq; + cp0_compare_irq_shift = CP0_LEGACY_PERFCNT_IRQ; cp0_perfcount_irq = -1; } -- cgit v1.2.3-59-g8ed1b From f0b77f2c0eed1e37c96b9a995d5a45e9eb4aaca8 Mon Sep 17 00:00:00 2001 From: "Steven J. Hill" Date: Fri, 6 Jul 2012 23:56:00 +0200 Subject: MIPS: Clean-up GIC and vectored interrupts. This change adds macros for routing of GIC interrupts for EIC and non-EIC hardware modes. Also added Malta GIC macros having to do with performance and timer interrupts. Signed-off-by: Steven J. Hill Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3576/ Signed-off-by: Ralf Baechle --- arch/mips/include/asm/gic.h | 15 ++++++++++++++- arch/mips/include/asm/mips-boards/maltaint.h | 10 ++++++++++ 2 files changed, 24 insertions(+), 1 deletion(-) diff --git a/arch/mips/include/asm/gic.h b/arch/mips/include/asm/gic.h index 86548da650e7..991b659e2548 100644 --- a/arch/mips/include/asm/gic.h +++ b/arch/mips/include/asm/gic.h @@ -206,7 +206,7 @@ #define GIC_VPE_EIC_SHADOW_SET_BASE 0x0100 #define GIC_VPE_EIC_SS(intr) \ - (GIC_EIC_SHADOW_SET_BASE + (4 * intr)) + (GIC_VPE_EIC_SHADOW_SET_BASE + (4 * intr)) #define GIC_VPE_EIC_VEC_BASE 0x0800 #define GIC_VPE_EIC_VEC(intr) \ @@ -330,6 +330,17 @@ struct gic_intr_map { #define GIC_FLAG_TRANSPARENT 0x02 }; +/* + * This is only used in EIC mode. This helps to figure out which + * shared interrupts we need to process when we get a vector interrupt. + */ +#define GIC_MAX_SHARED_INTR 0x5 +struct gic_shared_intr_map { + unsigned int num_shared_intr; + unsigned int intr_list[GIC_MAX_SHARED_INTR]; + unsigned int local_intr_mask; +}; + extern void gic_init(unsigned long gic_base_addr, unsigned long gic_addrspace_size, struct gic_intr_map *intrmap, unsigned int intrmap_size, unsigned int irqbase); @@ -338,5 +349,7 @@ extern unsigned int gic_get_int(void); extern void gic_send_ipi(unsigned int intr); extern unsigned int plat_ipi_call_int_xlate(unsigned int); extern unsigned int plat_ipi_resched_int_xlate(unsigned int); +extern void gic_bind_eic_interrupt(int irq, int set); +extern unsigned int gic_get_timer_pending(void); #endif /* _ASM_GICREGS_H */ diff --git a/arch/mips/include/asm/mips-boards/maltaint.h b/arch/mips/include/asm/mips-boards/maltaint.h index d11aa02a956a..5447d9fc4219 100644 --- a/arch/mips/include/asm/mips-boards/maltaint.h +++ b/arch/mips/include/asm/mips-boards/maltaint.h @@ -86,6 +86,16 @@ #define GIC_CPU_INT4 4 /* . */ #define GIC_CPU_INT5 5 /* Core Interrupt 5 */ +/* MALTA GIC local interrupts */ +#define GIC_INT_TMR (GIC_CPU_INT5) +#define GIC_INT_PERFCTR (GIC_CPU_INT5) + +/* GIC constants */ +/* Add 2 to convert non-eic hw int # to eic vector # */ +#define GIC_CPU_TO_VEC_OFFSET (2) +/* If we map an intr to pin X, GIC will actually generate vector X+1 */ +#define GIC_PIN_TO_VEC_OFFSET (1) + #define GIC_EXT_INTR(x) x /* External Interrupts used for IPI */ -- cgit v1.2.3-59-g8ed1b From 839efb4ffbfba74857e3411413f7ca53c8ff1925 Mon Sep 17 00:00:00 2001 From: Ralf Baechle Date: Fri, 6 Jul 2012 23:56:00 +0200 Subject: MIPS: MT: Fix indentation damage. Split off from https://patchwork.linux-mips.org/patch/3603/. Signed-off-by: Ralf Baechle --- arch/mips/include/asm/mipsmtregs.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/include/asm/mipsmtregs.h b/arch/mips/include/asm/mipsmtregs.h index c9420aa97e32..e71ff4c317f2 100644 --- a/arch/mips/include/asm/mipsmtregs.h +++ b/arch/mips/include/asm/mipsmtregs.h @@ -48,7 +48,7 @@ #define CP0_VPECONF0 $1, 2 #define CP0_VPECONF1 $1, 3 #define CP0_YQMASK $1, 4 -#define CP0_VPESCHEDULE $1, 5 +#define CP0_VPESCHEDULE $1, 5 #define CP0_VPESCHEFBK $1, 6 #define CP0_TCSTATUS $2, 1 #define CP0_TCBIND $2, 2 -- cgit v1.2.3-59-g8ed1b From 113c62d9844d9037508fa156e47db1b5407a27c3 Mon Sep 17 00:00:00 2001 From: "Steven J. Hill" Date: Fri, 6 Jul 2012 23:56:00 +0200 Subject: MIPS: Add support for the M14Kc core. [ralf@linux-mips.org: Fixed whitespace damage.] Signed-off-by: Steven J. Hill Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/3773/ Signed-off-by: Ralf Baechle --- arch/mips/include/asm/cpu.h | 5 +++-- arch/mips/kernel/cpu-probe.c | 7 ++++++- arch/mips/mm/c-r4k.c | 1 + arch/mips/mm/tlbex.c | 2 ++ arch/mips/oprofile/common.c | 1 + arch/mips/oprofile/op_model_mipsxx.c | 4 ++++ 6 files changed, 17 insertions(+), 3 deletions(-) diff --git a/arch/mips/include/asm/cpu.h b/arch/mips/include/asm/cpu.h index f9fa2a479dd0..c64910586b74 100644 --- a/arch/mips/include/asm/cpu.h +++ b/arch/mips/include/asm/cpu.h @@ -94,6 +94,7 @@ #define PRID_IMP_24KE 0x9600 #define PRID_IMP_74K 0x9700 #define PRID_IMP_1004K 0x9900 +#define PRID_IMP_M14KC 0x9c00 /* * These are the PRID's for when 23:16 == PRID_COMP_SIBYTE @@ -260,7 +261,7 @@ enum cpu_type_enum { */ CPU_4KC, CPU_4KEC, CPU_4KSC, CPU_24K, CPU_34K, CPU_1004K, CPU_74K, CPU_ALCHEMY, CPU_PR4450, CPU_BMIPS32, CPU_BMIPS3300, CPU_BMIPS4350, - CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC, + CPU_BMIPS4380, CPU_BMIPS5000, CPU_JZRISC, CPU_M14KC, /* * MIPS64 class processors @@ -288,7 +289,7 @@ enum cpu_type_enum { #define MIPS_CPU_ISA_M64R2 0x00000100 #define MIPS_CPU_ISA_32BIT (MIPS_CPU_ISA_I | MIPS_CPU_ISA_II | \ - MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M32R2 ) + MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M32R2) #define MIPS_CPU_ISA_64BIT (MIPS_CPU_ISA_III | MIPS_CPU_ISA_IV | \ MIPS_CPU_ISA_V | MIPS_CPU_ISA_M64R1 | MIPS_CPU_ISA_M64R2) diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 6ae7ce4ac63e..aaf39f3eaa51 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -4,7 +4,7 @@ * Copyright (C) xxxx the Anonymous * Copyright (C) 1994 - 2006 Ralf Baechle * Copyright (C) 2003, 2004 Maciej W. Rozycki - * Copyright (C) 2001, 2004 MIPS Inc. + * Copyright (C) 2001, 2004, 2011, 2012 MIPS Technologies, Inc. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License @@ -199,6 +199,7 @@ void __init check_wait(void) cpu_wait = rm7k_wait_irqoff; break; + case CPU_M14KC: case CPU_24K: case CPU_34K: case CPU_1004K: @@ -831,6 +832,10 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c, unsigned int cpu) c->cputype = CPU_74K; __cpu_name[cpu] = "MIPS 74Kc"; break; + case PRID_IMP_M14KC: + c->cputype = CPU_M14KC; + __cpu_name[cpu] = "MIPS M14Kc"; + break; case PRID_IMP_1004K: c->cputype = CPU_1004K; __cpu_name[cpu] = "MIPS 1004Kc"; diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 5109be96d98d..e56efd059189 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -1051,6 +1051,7 @@ static void __cpuinit probe_pcache(void) case CPU_R14000: break; + case CPU_M14KC: case CPU_24K: case CPU_34K: case CPU_74K: diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 0bc485b3cd60..03eb0ef91580 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -9,6 +9,7 @@ * Copyright (C) 2005, 2007, 2008, 2009 Maciej W. Rozycki * Copyright (C) 2006 Ralf Baechle (ralf@linux-mips.org) * Copyright (C) 2008, 2009 Cavium Networks, Inc. + * Copyright (C) 2011 MIPS Technologies, Inc. * * ... and the days got worse and worse and now you see * I've gone completly out of my mind. @@ -494,6 +495,7 @@ static void __cpuinit build_tlb_write_entry(u32 **p, struct uasm_label **l, case CPU_R14000: case CPU_4KC: case CPU_4KEC: + case CPU_M14KC: case CPU_SB1: case CPU_SB1A: case CPU_4KSC: diff --git a/arch/mips/oprofile/common.c b/arch/mips/oprofile/common.c index d1f2d4c52d42..b6e378211a2c 100644 --- a/arch/mips/oprofile/common.c +++ b/arch/mips/oprofile/common.c @@ -78,6 +78,7 @@ int __init oprofile_arch_init(struct oprofile_operations *ops) switch (current_cpu_type()) { case CPU_5KC: + case CPU_M14KC: case CPU_20KC: case CPU_24K: case CPU_25KF: diff --git a/arch/mips/oprofile/op_model_mipsxx.c b/arch/mips/oprofile/op_model_mipsxx.c index baba3bcaa3c2..4d80a856048d 100644 --- a/arch/mips/oprofile/op_model_mipsxx.c +++ b/arch/mips/oprofile/op_model_mipsxx.c @@ -322,6 +322,10 @@ static int __init mipsxx_init(void) op_model_mipsxx_ops.num_counters = counters; switch (current_cpu_type()) { + case CPU_M14KC: + op_model_mipsxx_ops.cpu_type = "mips/M14Kc"; + break; + case CPU_20KC: op_model_mipsxx_ops.cpu_type = "mips/20K"; break; -- cgit v1.2.3-59-g8ed1b From 82163edcdfa4eb3d74516cc8e9f38dd3d039b67d Mon Sep 17 00:00:00 2001 From: Santosh Nayak Date: Sat, 23 Jun 2012 07:59:54 -0300 Subject: [media] dvb-core: Release semaphore on error path dvb_register_device() There is a missing "up_write()" here. Semaphore should be released before returning error value. Cc: stable@kernel.org Signed-off-by: Santosh Nayak Signed-off-by: Mauro Carvalho Chehab --- drivers/media/dvb/dvb-core/dvbdev.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/media/dvb/dvb-core/dvbdev.c b/drivers/media/dvb/dvb-core/dvbdev.c index 00a67326c193..39eab73b01ae 100644 --- a/drivers/media/dvb/dvb-core/dvbdev.c +++ b/drivers/media/dvb/dvb-core/dvbdev.c @@ -243,6 +243,7 @@ int dvb_register_device(struct dvb_adapter *adap, struct dvb_device **pdvbdev, if (minor == MAX_DVB_MINORS) { kfree(dvbdevfops); kfree(dvbdev); + up_write(&minor_rwsem); mutex_unlock(&dvbdev_register_lock); return -EINVAL; } -- cgit v1.2.3-59-g8ed1b From 4dab0e5fe8ceaaf267003b5d7aa0c31c1092bee0 Mon Sep 17 00:00:00 2001 From: Mauro Carvalho Chehab Date: Thu, 5 Jul 2012 22:52:34 -0300 Subject: [media] em28xx: fix em28xx-rc load The logic that checks if a device has remote control is wrong. Due to that, the em28xx RC module is not loaded by default. Fix the logic, in order to make it work properly. Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/em28xx/em28xx-cards.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/em28xx/em28xx-cards.c b/drivers/media/video/em28xx/em28xx-cards.c index 92da7c28b6f0..862c6575c557 100644 --- a/drivers/media/video/em28xx/em28xx-cards.c +++ b/drivers/media/video/em28xx/em28xx-cards.c @@ -2893,7 +2893,7 @@ static void request_module_async(struct work_struct *work) if (dev->board.has_dvb) request_module("em28xx-dvb"); - if (dev->board.has_ir_i2c && !disable_ir) + if (dev->board.ir_codes && !disable_ir) request_module("em28xx-rc"); } -- cgit v1.2.3-59-g8ed1b From a7deca6fa79d5c65575532e780f3c93f6bf8ddad Mon Sep 17 00:00:00 2001 From: David Dillow Date: Mon, 18 Jun 2012 00:15:21 -0300 Subject: [media] cx231xx: don't DMA to random addresses Commit 7a6f6c29d264cdd2fe0eb3d923217eed5f0ad134 (cx231xx: use URB_NO_TRANSFER_DMA_MAP) was intended to avoid mapping the DMA buffer for URB twice. This works for the URBs allocated with usb_alloc_urb(), as those are allocated from cohernent DMA pools, but the flag was also added for the VBI and audio URBs, which have a manually allocated area. This leaves the random trash in the structure after allocation as the DMA address, corrupting memory and preventing VBI and audio from working. Letting the USB core map the buffers solves the problem. Cc: stable@kernel.org Signed-off-by: David Dillow Cc: Sri Deevi Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx231xx/cx231xx-audio.c | 4 ++-- drivers/media/video/cx231xx/cx231xx-vbi.c | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/media/video/cx231xx/cx231xx-audio.c b/drivers/media/video/cx231xx/cx231xx-audio.c index 068f78dc5d13..b4c99c7270cf 100644 --- a/drivers/media/video/cx231xx/cx231xx-audio.c +++ b/drivers/media/video/cx231xx/cx231xx-audio.c @@ -307,7 +307,7 @@ static int cx231xx_init_audio_isoc(struct cx231xx *dev) urb->context = dev; urb->pipe = usb_rcvisocpipe(dev->udev, dev->adev.end_point_addr); - urb->transfer_flags = URB_ISO_ASAP | URB_NO_TRANSFER_DMA_MAP; + urb->transfer_flags = URB_ISO_ASAP; urb->transfer_buffer = dev->adev.transfer_buffer[i]; urb->interval = 1; urb->complete = cx231xx_audio_isocirq; @@ -368,7 +368,7 @@ static int cx231xx_init_audio_bulk(struct cx231xx *dev) urb->context = dev; urb->pipe = usb_rcvbulkpipe(dev->udev, dev->adev.end_point_addr); - urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; + urb->transfer_flags = 0; urb->transfer_buffer = dev->adev.transfer_buffer[i]; urb->complete = cx231xx_audio_bulkirq; urb->transfer_buffer_length = sb_size; diff --git a/drivers/media/video/cx231xx/cx231xx-vbi.c b/drivers/media/video/cx231xx/cx231xx-vbi.c index 3d15314e1f88..ac7db52f404f 100644 --- a/drivers/media/video/cx231xx/cx231xx-vbi.c +++ b/drivers/media/video/cx231xx/cx231xx-vbi.c @@ -448,7 +448,7 @@ int cx231xx_init_vbi_isoc(struct cx231xx *dev, int max_packets, return -ENOMEM; } dev->vbi_mode.bulk_ctl.urb[i] = urb; - urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; + urb->transfer_flags = 0; dev->vbi_mode.bulk_ctl.transfer_buffer[i] = kzalloc(sb_size, GFP_KERNEL); -- cgit v1.2.3-59-g8ed1b From a65c3262a766311d4704a9ea29354480c5e8590d Mon Sep 17 00:00:00 2001 From: Kamil Debski Date: Tue, 26 Jun 2012 04:44:40 -0300 Subject: [media] s5p-mfc: Fixed setup of custom controls in decoder and encoder Fixed bugs in functions that initialize custom controls. Signed-off-by: Kamil Debski Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-mfc/s5p_mfc_dec.c | 1 + drivers/media/video/s5p-mfc/s5p_mfc_enc.c | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/media/video/s5p-mfc/s5p_mfc_dec.c b/drivers/media/video/s5p-mfc/s5p_mfc_dec.c index 4dd32fc8fd82..feea867f318c 100644 --- a/drivers/media/video/s5p-mfc/s5p_mfc_dec.c +++ b/drivers/media/video/s5p-mfc/s5p_mfc_dec.c @@ -996,6 +996,7 @@ int s5p_mfc_dec_ctrls_setup(struct s5p_mfc_ctx *ctx) for (i = 0; i < NUM_CTRLS; i++) { if (IS_MFC51_PRIV(controls[i].id)) { + memset(&cfg, 0, sizeof(struct v4l2_ctrl_config)); cfg.ops = &s5p_mfc_dec_ctrl_ops; cfg.id = controls[i].id; cfg.min = controls[i].minimum; diff --git a/drivers/media/video/s5p-mfc/s5p_mfc_enc.c b/drivers/media/video/s5p-mfc/s5p_mfc_enc.c index 03d83340e7fb..158b78989b89 100644 --- a/drivers/media/video/s5p-mfc/s5p_mfc_enc.c +++ b/drivers/media/video/s5p-mfc/s5p_mfc_enc.c @@ -1773,6 +1773,7 @@ int s5p_mfc_enc_ctrls_setup(struct s5p_mfc_ctx *ctx) } for (i = 0; i < NUM_CTRLS; i++) { if (IS_MFC51_PRIV(controls[i].id)) { + memset(&cfg, 0, sizeof(struct v4l2_ctrl_config)); cfg.ops = &s5p_mfc_enc_ctrl_ops; cfg.id = controls[i].id; cfg.min = controls[i].minimum; -- cgit v1.2.3-59-g8ed1b From ba50e7e16b86e25048290b682f7a4e09e069d321 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Sun, 1 Jul 2012 16:15:09 -0300 Subject: [media] cx25840: fix regression in HVR-1800 analog support The refactoring of the cx25840 driver to support the cx23888 caused breakage with the existing support for cx23885/cx23887 analog support. Rework the routines such that the new code is only used for the 888. Validated with the following boards: HVR-1800 retail (0070:7801) HVR-1800 OEM (0070:7809) HVR_1850 retail (0070:8541) Thanks to Steven Toth and Hauppauge for loaning me various boards to regression test with. Reported-by: Jonathan Thanks-to: Steven Toth Signed-off-by: Devin Heitmueler Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx25840/cx25840-core.c | 23 +++++++++++++---------- 1 file changed, 13 insertions(+), 10 deletions(-) diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index fc1ff69cffd0..a82b7045f8c9 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -84,7 +84,7 @@ MODULE_PARM_DESC(debug, "Debugging messages [0=Off (default) 1=On]"); /* ----------------------------------------------------------------------- */ -static void cx23885_std_setup(struct i2c_client *client); +static void cx23888_std_setup(struct i2c_client *client); int cx25840_write(struct i2c_client *client, u16 addr, u8 value) { @@ -638,10 +638,13 @@ static void cx23885_initialize(struct i2c_client *client) finish_wait(&state->fw_wait, &wait); destroy_workqueue(q); - /* Call the cx23885 specific std setup func, we no longer rely on + /* Call the cx23888 specific std setup func, we no longer rely on * the generic cx24840 func. */ - cx23885_std_setup(client); + if (is_cx23888(state)) + cx23888_std_setup(client); + else + cx25840_std_setup(client); /* (re)set input */ set_input(client, state->vid_input, state->aud_input); @@ -1298,8 +1301,8 @@ static int set_v4lstd(struct i2c_client *client) } cx25840_and_or(client, 0x400, ~0xf, fmt); cx25840_and_or(client, 0x403, ~0x3, pal_m); - if (is_cx2388x(state)) - cx23885_std_setup(client); + if (is_cx23888(state)) + cx23888_std_setup(client); else cx25840_std_setup(client); if (!is_cx2583x(state)) @@ -1782,8 +1785,8 @@ static int cx25840_s_video_routing(struct v4l2_subdev *sd, struct cx25840_state *state = to_state(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); - if (is_cx2388x(state)) - cx23885_std_setup(client); + if (is_cx23888(state)) + cx23888_std_setup(client); return set_input(client, input, state->aud_input); } @@ -1794,8 +1797,8 @@ static int cx25840_s_audio_routing(struct v4l2_subdev *sd, struct cx25840_state *state = to_state(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); - if (is_cx2388x(state)) - cx23885_std_setup(client); + if (is_cx23888(state)) + cx23888_std_setup(client); return set_input(client, state->vid_input, input); } @@ -4939,7 +4942,7 @@ void cx23885_dif_setup(struct i2c_client *client, u32 ifHz) } } -static void cx23885_std_setup(struct i2c_client *client) +static void cx23888_std_setup(struct i2c_client *client) { struct cx25840_state *state = to_state(i2c_get_clientdata(client)); v4l2_std_id std = state->std; -- cgit v1.2.3-59-g8ed1b From e6d0db1d47c0ac4d61c842a95988cbe8712df447 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Sun, 1 Jul 2012 16:15:10 -0300 Subject: [media] cx25840: fix regression in analog support hue/saturation controls Fix regression in HVR-1800 analog support hue/saturation controls. The changes made for the cx23888 caused regressions in the analog support for cx23885/cx23887 based boards (partly due to changes in the locations of the hue/saturation controls). As a result the wrong registers were being overwritten. Add code to use the correct registers if it's a cx23888 Validated with the following boards: HVR-1800 retail (0070:7801) HVR-1800 OEM (0070:7809) HVR-1850 retail (0070:8541) Thanks to Steven Toth and Hauppauge for loaning me various boards to regression test with. Reported-by: Jonathan Thanks-to: Steven Toth Signed-off-by: Devin Heitmueler Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx25840/cx25840-core.c | 33 +++++++++++++++++++++++++----- 1 file changed, 28 insertions(+), 5 deletions(-) diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index a82b7045f8c9..e12b3b0d7f35 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -1106,9 +1106,23 @@ static int set_input(struct i2c_client *client, enum cx25840_video_input vid_inp cx25840_write4(client, 0x410, 0xffff0dbf); cx25840_write4(client, 0x414, 0x00137d03); - cx25840_write4(client, 0x418, 0x01008080); + + /* on the 887, 0x418 is HSCALE_CTRL, on the 888 it is + CHROMA_CTRL */ + if (is_cx23888(state)) + cx25840_write4(client, 0x418, 0x01008080); + else + cx25840_write4(client, 0x418, 0x01000000); + cx25840_write4(client, 0x41c, 0x00000000); - cx25840_write4(client, 0x420, 0x001c3e0f); + + /* on the 887, 0x420 is CHROMA_CTRL, on the 888 it is + CRUSH_CTRL */ + if (is_cx23888(state)) + cx25840_write4(client, 0x420, 0x001c3e0f); + else + cx25840_write4(client, 0x420, 0x001c8282); + cx25840_write4(client, 0x42c, 0x42600000); cx25840_write4(client, 0x430, 0x0000039b); cx25840_write4(client, 0x438, 0x00000000); @@ -1315,6 +1329,7 @@ static int set_v4lstd(struct i2c_client *client) static int cx25840_s_ctrl(struct v4l2_ctrl *ctrl) { struct v4l2_subdev *sd = to_sd(ctrl); + struct cx25840_state *state = to_state(sd); struct i2c_client *client = v4l2_get_subdevdata(sd); switch (ctrl->id) { @@ -1327,12 +1342,20 @@ static int cx25840_s_ctrl(struct v4l2_ctrl *ctrl) break; case V4L2_CID_SATURATION: - cx25840_write(client, 0x420, ctrl->val << 1); - cx25840_write(client, 0x421, ctrl->val << 1); + if (is_cx23888(state)) { + cx25840_write(client, 0x418, ctrl->val << 1); + cx25840_write(client, 0x419, ctrl->val << 1); + } else { + cx25840_write(client, 0x420, ctrl->val << 1); + cx25840_write(client, 0x421, ctrl->val << 1); + } break; case V4L2_CID_HUE: - cx25840_write(client, 0x422, ctrl->val); + if (is_cx23888(state)) + cx25840_write(client, 0x41a, ctrl->val); + else + cx25840_write(client, 0x422, ctrl->val); break; default: -- cgit v1.2.3-59-g8ed1b From d90133ec58d4fad822ff322557b6885c5b77f127 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Sun, 1 Jul 2012 16:15:11 -0300 Subject: [media] cx25840: fix regression in HVR-1800 analog audio The refactoring of the cx25840 driver to support the cx23888 caused breakage with the existing support for cx23885/cx23887 analog audio support. Tweak the code so that it only uses the code if it really is a cx23888 instead of applying it to all cx2388x based devices. Validated with the following boards: HVR-1800 retail (0070:7801) HVR-1800 OEM (0070:7809) HVR_1850 retail (0070:8541) Thanks to Steven Toth and Hauppauge for loaning me various boards to regression test with. Reported-by: Jonathan Thanks-to: Steven Toth Signed-off-by: Devin Heitmueler Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx25840/cx25840-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index e12b3b0d7f35..7dc7bb155dff 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -1250,7 +1250,7 @@ static int set_input(struct i2c_client *client, enum cx25840_video_input vid_inp cx25840_write4(client, 0x8d0, 0x1f063870); } - if (is_cx2388x(state)) { + if (is_cx23888(state)) { /* HVR1850 */ /* AUD_IO_CTRL - I2S Input, Parallel1*/ /* - Channel 1 src - Parallel1 (Merlin out) */ -- cgit v1.2.3-59-g8ed1b From b5c5c17babfaf83f274ca8f0a7660284882d8d4d Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Sun, 1 Jul 2012 16:15:12 -0300 Subject: [media] cx25840: fix vsrc/hsrc usage on cx23888 designs The location of the vsrc/hsrc registers moved in the cx23888, causing the s_mbus call to fail prematurely indicating that "720x480 is not a valid size". The function bailed out before many pertinent registers were set related to the scaler (causing unexpected results in video rendering when doing raw video capture). Use the correct registers for the cx23888. Validated with the following boards: HVR-1800 retail (0070:7801) HVR-1800 OEM (0070:7809) HVR-1850 retail (0070:8541) Thanks to Steven Toth and Hauppauge for loaning me various boards to regression test with. Reported-by: Jonathan Thanks-to: Steven Toth Signed-off-by: Devin Heitmueler Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx25840/cx25840-core.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/media/video/cx25840/cx25840-core.c b/drivers/media/video/cx25840/cx25840-core.c index 7dc7bb155dff..d8eac3e30a7e 100644 --- a/drivers/media/video/cx25840/cx25840-core.c +++ b/drivers/media/video/cx25840/cx25840-core.c @@ -1380,11 +1380,21 @@ static int cx25840_s_mbus_fmt(struct v4l2_subdev *sd, struct v4l2_mbus_framefmt fmt->field = V4L2_FIELD_INTERLACED; fmt->colorspace = V4L2_COLORSPACE_SMPTE170M; - Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4; - Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4; + if (is_cx23888(state)) { + Vsrc = (cx25840_read(client, 0x42a) & 0x3f) << 4; + Vsrc |= (cx25840_read(client, 0x429) & 0xf0) >> 4; + } else { + Vsrc = (cx25840_read(client, 0x476) & 0x3f) << 4; + Vsrc |= (cx25840_read(client, 0x475) & 0xf0) >> 4; + } - Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4; - Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4; + if (is_cx23888(state)) { + Hsrc = (cx25840_read(client, 0x426) & 0x3f) << 4; + Hsrc |= (cx25840_read(client, 0x425) & 0xf0) >> 4; + } else { + Hsrc = (cx25840_read(client, 0x472) & 0x3f) << 4; + Hsrc |= (cx25840_read(client, 0x471) & 0xf0) >> 4; + } Vlines = fmt->height + (is_50Hz ? 4 : 7); -- cgit v1.2.3-59-g8ed1b From d214ddc86807fb1995fd3400347a202826332710 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Sun, 1 Jul 2012 16:15:13 -0300 Subject: [media] cx23885: make analog support work for HVR_1250 (cx23885 variant) The analog support in the cx23885 driver was completely broken for the HVR-1250. Add the necessary code. Note that this only implements analog for the composite and s-video inputs. The tuner input continues to be non-functional due to a lack of analog support in the mt2131 driver. Validated with the following boards: HVR-1250 (0070:7911) Thanks to Steven Toth and Hauppauge for loaning me various boards to regression test with. Thanks-to: Steven Toth Signed-off-by: Devin Heitmueler Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx23885/cx23885-cards.c | 31 +++++++++++++++++++++-------- drivers/media/video/cx23885/cx23885-video.c | 1 + 2 files changed, 24 insertions(+), 8 deletions(-) diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c index 13739e002a63..f8664f2ccfda 100644 --- a/drivers/media/video/cx23885/cx23885-cards.c +++ b/drivers/media/video/cx23885/cx23885-cards.c @@ -127,22 +127,37 @@ struct cx23885_board cx23885_boards[] = { }, [CX23885_BOARD_HAUPPAUGE_HVR1250] = { .name = "Hauppauge WinTV-HVR1250", + .porta = CX23885_ANALOG_VIDEO, .portc = CX23885_MPEG_DVB, +#ifdef MT2131_NO_ANALOG_SUPPORT_YET + .tuner_type = TUNER_PHILIPS_TDA8290, + .tuner_addr = 0x42, /* 0x84 >> 1 */ + .tuner_bus = 1, +#endif + .force_bff = 1, .input = {{ +#ifdef MT2131_NO_ANALOG_SUPPORT_YET .type = CX23885_VMUX_TELEVISION, - .vmux = 0, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN5_CH2 | + CX25840_VIN2_CH1, + .amux = CX25840_AUDIO8, .gpio0 = 0xff00, }, { - .type = CX23885_VMUX_DEBUG, - .vmux = 0, - .gpio0 = 0xff01, - }, { +#endif .type = CX23885_VMUX_COMPOSITE1, - .vmux = 1, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN4_CH2 | + CX25840_VIN6_CH1, + .amux = CX25840_AUDIO7, .gpio0 = 0xff02, }, { .type = CX23885_VMUX_SVIDEO, - .vmux = 2, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN4_CH2 | + CX25840_VIN8_CH1 | + CX25840_SVIDEO_ON, + .amux = CX25840_AUDIO7, .gpio0 = 0xff02, } }, }, @@ -1526,10 +1541,10 @@ void cx23885_card_setup(struct cx23885_dev *dev) */ switch (dev->board) { case CX23885_BOARD_TEVII_S470: - case CX23885_BOARD_HAUPPAUGE_HVR1250: /* Currently only enabled for the integrated IR controller */ if (!enable_885_ir) break; + case CX23885_BOARD_HAUPPAUGE_HVR1250: case CX23885_BOARD_HAUPPAUGE_HVR1800: case CX23885_BOARD_HAUPPAUGE_HVR1800lp: case CX23885_BOARD_HAUPPAUGE_HVR1700: diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c index c654bdc7ccb2..4d05689df426 100644 --- a/drivers/media/video/cx23885/cx23885-video.c +++ b/drivers/media/video/cx23885/cx23885-video.c @@ -505,6 +505,7 @@ static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input) if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1800) || (dev->board == CX23885_BOARD_MPX885) || + (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1250) || (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850)) { /* Configure audio routing */ v4l2_subdev_call(dev->sd_cx25840, audio, s_routing, -- cgit v1.2.3-59-g8ed1b From 0ac60acb5491df565141c0e3a87d7148a865fe36 Mon Sep 17 00:00:00 2001 From: Devin Heitmueller Date: Sun, 1 Jul 2012 16:15:14 -0300 Subject: [media] cx23885: add support for HVR-1255 analog (cx23888 variant) Get the HVR-1255 analog support working for all supported inputs. This includes introduction of a new board profile for an OEM variant which doesn't have all the same inputs as the retail version of the board. Validated with the following boards: HVR-1255 (0070:2259) Thanks to Steven Toth and Hauppauge for loaning me various boards to regression test with. Thanks-to: Steven Toth Signed-off-by: Devin Heitmueler Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx23885/cx23885-cards.c | 56 ++++++++++++++++++++++++++++- drivers/media/video/cx23885/cx23885-dvb.c | 6 ++++ drivers/media/video/cx23885/cx23885-video.c | 8 ++++- drivers/media/video/cx23885/cx23885.h | 1 + 4 files changed, 69 insertions(+), 2 deletions(-) diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c index f8664f2ccfda..bf79003bd8f6 100644 --- a/drivers/media/video/cx23885/cx23885-cards.c +++ b/drivers/media/video/cx23885/cx23885-cards.c @@ -282,7 +282,55 @@ struct cx23885_board cx23885_boards[] = { }, [CX23885_BOARD_HAUPPAUGE_HVR1255] = { .name = "Hauppauge WinTV-HVR1255", + .porta = CX23885_ANALOG_VIDEO, .portc = CX23885_MPEG_DVB, + .tuner_type = TUNER_ABSENT, + .tuner_addr = 0x42, /* 0x84 >> 1 */ + .force_bff = 1, + .input = {{ + .type = CX23885_VMUX_TELEVISION, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN5_CH2 | + CX25840_VIN2_CH1 | + CX25840_DIF_ON, + .amux = CX25840_AUDIO8, + }, { + .type = CX23885_VMUX_COMPOSITE1, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN4_CH2 | + CX25840_VIN6_CH1, + .amux = CX25840_AUDIO7, + }, { + .type = CX23885_VMUX_SVIDEO, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN4_CH2 | + CX25840_VIN8_CH1 | + CX25840_SVIDEO_ON, + .amux = CX25840_AUDIO7, + } }, + }, + [CX23885_BOARD_HAUPPAUGE_HVR1255_22111] = { + .name = "Hauppauge WinTV-HVR1255", + .porta = CX23885_ANALOG_VIDEO, + .portc = CX23885_MPEG_DVB, + .tuner_type = TUNER_ABSENT, + .tuner_addr = 0x42, /* 0x84 >> 1 */ + .force_bff = 1, + .input = {{ + .type = CX23885_VMUX_TELEVISION, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN5_CH2 | + CX25840_VIN2_CH1 | + CX25840_DIF_ON, + .amux = CX25840_AUDIO8, + }, { + .type = CX23885_VMUX_SVIDEO, + .vmux = CX25840_VIN7_CH3 | + CX25840_VIN4_CH2 | + CX25840_VIN8_CH1 | + CX25840_SVIDEO_ON, + .amux = CX25840_AUDIO7, + } }, }, [CX23885_BOARD_HAUPPAUGE_HVR1210] = { .name = "Hauppauge WinTV-HVR1210", @@ -639,7 +687,7 @@ struct cx23885_subid cx23885_subids[] = { }, { .subvendor = 0x0070, .subdevice = 0x2259, - .card = CX23885_BOARD_HAUPPAUGE_HVR1255, + .card = CX23885_BOARD_HAUPPAUGE_HVR1255_22111, }, { .subvendor = 0x0070, .subdevice = 0x2291, @@ -1145,6 +1193,7 @@ void cx23885_gpio_setup(struct cx23885_dev *dev) case CX23885_BOARD_HAUPPAUGE_HVR1270: case CX23885_BOARD_HAUPPAUGE_HVR1275: case CX23885_BOARD_HAUPPAUGE_HVR1255: + case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: case CX23885_BOARD_HAUPPAUGE_HVR1210: /* GPIO-5 RF Control: 0 = RF1 Terrestrial, 1 = RF2 Cable */ /* GPIO-6 I2C Gate which can isolate the demod from the bus */ @@ -1282,6 +1331,7 @@ int cx23885_ir_init(struct cx23885_dev *dev) case CX23885_BOARD_HAUPPAUGE_HVR1400: case CX23885_BOARD_HAUPPAUGE_HVR1275: case CX23885_BOARD_HAUPPAUGE_HVR1255: + case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: case CX23885_BOARD_HAUPPAUGE_HVR1210: /* FIXME: Implement me */ break; @@ -1439,6 +1489,7 @@ void cx23885_card_setup(struct cx23885_dev *dev) case CX23885_BOARD_HAUPPAUGE_HVR1270: case CX23885_BOARD_HAUPPAUGE_HVR1275: case CX23885_BOARD_HAUPPAUGE_HVR1255: + case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: case CX23885_BOARD_HAUPPAUGE_HVR1210: case CX23885_BOARD_HAUPPAUGE_HVR1850: case CX23885_BOARD_HAUPPAUGE_HVR1290: @@ -1526,6 +1577,7 @@ void cx23885_card_setup(struct cx23885_dev *dev) case CX23885_BOARD_HAUPPAUGE_HVR1270: case CX23885_BOARD_HAUPPAUGE_HVR1275: case CX23885_BOARD_HAUPPAUGE_HVR1255: + case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: case CX23885_BOARD_HAUPPAUGE_HVR1210: case CX23885_BOARD_COMPRO_VIDEOMATE_E800: case CX23885_BOARD_HAUPPAUGE_HVR1290: @@ -1554,6 +1606,8 @@ void cx23885_card_setup(struct cx23885_dev *dev) case CX23885_BOARD_NETUP_DUAL_DVBS2_CI: case CX23885_BOARD_NETUP_DUAL_DVB_T_C_CI_RF: case CX23885_BOARD_COMPRO_VIDEOMATE_E800: + case CX23885_BOARD_HAUPPAUGE_HVR1255: + case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: case CX23885_BOARD_HAUPPAUGE_HVR1270: case CX23885_BOARD_HAUPPAUGE_HVR1850: case CX23885_BOARD_MYGICA_X8506: diff --git a/drivers/media/video/cx23885/cx23885-dvb.c b/drivers/media/video/cx23885/cx23885-dvb.c index a80a92c47455..cd542684ba02 100644 --- a/drivers/media/video/cx23885/cx23885-dvb.c +++ b/drivers/media/video/cx23885/cx23885-dvb.c @@ -712,6 +712,7 @@ static int dvb_register(struct cx23885_tsport *port) } break; case CX23885_BOARD_HAUPPAUGE_HVR1255: + case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: i2c_bus = &dev->i2c_bus[0]; fe0->dvb.frontend = dvb_attach(s5h1411_attach, &hcw_s5h1411_config, @@ -721,6 +722,11 @@ static int dvb_register(struct cx23885_tsport *port) 0x60, &dev->i2c_bus[1].i2c_adap, &hauppauge_tda18271_config); } + + tda18271_attach(&dev->ts1.analog_fe, + 0x60, &dev->i2c_bus[1].i2c_adap, + &hauppauge_tda18271_config); + break; case CX23885_BOARD_HAUPPAUGE_HVR1800: i2c_bus = &dev->i2c_bus[0]; diff --git a/drivers/media/video/cx23885/cx23885-video.c b/drivers/media/video/cx23885/cx23885-video.c index 4d05689df426..22f8e7fbd665 100644 --- a/drivers/media/video/cx23885/cx23885-video.c +++ b/drivers/media/video/cx23885/cx23885-video.c @@ -506,6 +506,8 @@ static int cx23885_video_mux(struct cx23885_dev *dev, unsigned int input) if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1800) || (dev->board == CX23885_BOARD_MPX885) || (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1250) || + (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255) || + (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255_22111) || (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850)) { /* Configure audio routing */ v4l2_subdev_call(dev->sd_cx25840, audio, s_routing, @@ -1579,7 +1581,9 @@ static int cx23885_set_freq_via_ops(struct cx23885_dev *dev, fe = vfe->dvb.frontend; - if (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850) + if ((dev->board == CX23885_BOARD_HAUPPAUGE_HVR1850) || + (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255) || + (dev->board == CX23885_BOARD_HAUPPAUGE_HVR1255_22111)) fe = &dev->ts1.analog_fe; if (fe && fe->ops.tuner_ops.set_analog_params) { @@ -1609,6 +1613,8 @@ int cx23885_set_frequency(struct file *file, void *priv, int ret; switch (dev->board) { + case CX23885_BOARD_HAUPPAUGE_HVR1255: + case CX23885_BOARD_HAUPPAUGE_HVR1255_22111: case CX23885_BOARD_HAUPPAUGE_HVR1850: ret = cx23885_set_freq_via_ops(dev, f); break; diff --git a/drivers/media/video/cx23885/cx23885.h b/drivers/media/video/cx23885/cx23885.h index d884784a1c85..13c37ec07ae7 100644 --- a/drivers/media/video/cx23885/cx23885.h +++ b/drivers/media/video/cx23885/cx23885.h @@ -90,6 +90,7 @@ #define CX23885_BOARD_MYGICA_X8507 33 #define CX23885_BOARD_TERRATEC_CINERGY_T_PCIE_DUAL 34 #define CX23885_BOARD_TEVII_S471 35 +#define CX23885_BOARD_HAUPPAUGE_HVR1255_22111 36 #define GPIO_0 0x00000001 #define GPIO_1 0x00000002 -- cgit v1.2.3-59-g8ed1b From c6cff169268bba9de687acf317ac24aa038cc263 Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Sun, 1 Jul 2012 21:38:03 -0300 Subject: [media] cx23885: Silence unknown command warnings I am seeing a constant stream of warnings on my cx23885 based card: cx23885_tuner_callback(): Unknown command 0x2. Add a check in cx23885_tuner_callback to silence it. Signed-off-by: Anton Blanchard Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/cx23885/cx23885-cards.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/cx23885/cx23885-cards.c b/drivers/media/video/cx23885/cx23885-cards.c index bf79003bd8f6..080e11157e5f 100644 --- a/drivers/media/video/cx23885/cx23885-cards.c +++ b/drivers/media/video/cx23885/cx23885-cards.c @@ -963,7 +963,7 @@ int cx23885_tuner_callback(void *priv, int component, int command, int arg) struct cx23885_dev *dev = port->dev; u32 bitmask = 0; - if (command == XC2028_RESET_CLK) + if ((command == XC2028_RESET_CLK) || (command == XC2028_I2C_FLUSH)) return 0; if (command != 0) { -- cgit v1.2.3-59-g8ed1b From 57f4422f7bd83bb0a092e3f9aea0d9c8ac59045e Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Sun, 1 Jul 2012 21:58:00 -0300 Subject: [media] winbond-cir: Fix txandrx module info MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We aren't getting any module info for the txandx option because of a typo: parm: txandrx:bool Signed-off-by: Anton Blanchard Acked-by: David Härdeman Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/winbond-cir.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/rc/winbond-cir.c b/drivers/media/rc/winbond-cir.c index 342c2c8c1ddf..eca17b564cc2 100644 --- a/drivers/media/rc/winbond-cir.c +++ b/drivers/media/rc/winbond-cir.c @@ -232,7 +232,7 @@ MODULE_PARM_DESC(invert, "Invert the signal from the IR receiver"); static bool txandrx; /* default = 0 */ module_param(txandrx, bool, 0444); -MODULE_PARM_DESC(invert, "Allow simultaneous TX and RX"); +MODULE_PARM_DESC(txandrx, "Allow simultaneous TX and RX"); static unsigned int wake_sc = 0x800F040C; module_param(wake_sc, uint, 0644); -- cgit v1.2.3-59-g8ed1b From 8299d62843d4dcc5d769ce901799b8e7806ec93f Mon Sep 17 00:00:00 2001 From: Anton Blanchard Date: Sun, 1 Jul 2012 21:58:52 -0300 Subject: [media] winbond-cir: Initialise timeout, driver_type and allowed_protos MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We need to set a timeout so we can go idle on no activity. Signed-off-by: Anton Blanchard Acked-by: David Härdeman Signed-off-by: Mauro Carvalho Chehab --- drivers/media/rc/winbond-cir.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/media/rc/winbond-cir.c b/drivers/media/rc/winbond-cir.c index eca17b564cc2..54ee34872d14 100644 --- a/drivers/media/rc/winbond-cir.c +++ b/drivers/media/rc/winbond-cir.c @@ -1032,6 +1032,8 @@ wbcir_probe(struct pnp_dev *device, const struct pnp_device_id *dev_id) data->dev->tx_ir = wbcir_tx; data->dev->priv = data; data->dev->dev.parent = &device->dev; + data->dev->timeout = MS_TO_NS(100); + data->dev->allowed_protos = RC_TYPE_ALL; if (!request_region(data->wbase, WAKEUP_IOMEM_LEN, DRVNAME)) { dev_err(dev, "Region 0x%lx-0x%lx already in use!\n", -- cgit v1.2.3-59-g8ed1b From 7103180b4385de908d69815dbd6807879d371cbf Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Thu, 5 Jul 2012 14:31:33 -0300 Subject: [media] omap3isp: preview: Fix output size computation depending on input format The preview engine crops 4 columns and 4 lines when CFA is enabled. Commit b2da46e52fe7871cba36e1a435844502c0eccf39 ("omap3isp: preview: Add support for greyscale input") inverted the condition by mistake, fix this. Reported-by: Florian Neuhaus Signed-off-by: Laurent Pinchart Tested-by: Florian Neuhaus Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/omap3isp/isppreview.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/media/video/omap3isp/isppreview.c b/drivers/media/video/omap3isp/isppreview.c index 8a4935ecc655..a48a747b6fcc 100644 --- a/drivers/media/video/omap3isp/isppreview.c +++ b/drivers/media/video/omap3isp/isppreview.c @@ -1102,7 +1102,7 @@ static void preview_config_input_size(struct isp_prev_device *prev, u32 active) unsigned int elv = prev->crop.top + prev->crop.height - 1; u32 features; - if (format->code == V4L2_MBUS_FMT_Y10_1X10) { + if (format->code != V4L2_MBUS_FMT_Y10_1X10) { sph -= 2; eph += 2; slv -= 2; -- cgit v1.2.3-59-g8ed1b From 5aedc1094041335598c6aa73c5cf882f30886cd7 Mon Sep 17 00:00:00 2001 From: Laurent Pinchart Date: Fri, 6 Jul 2012 08:41:25 -0300 Subject: [media] omap3isp: preview: Fix contrast and brightness handling Commit bac387efbb88cf0e8df6f46a38387897cea464ee ("omap3isp: preview: Simplify configuration parameters access") added three fields to the preview_update structure, but failed to properly update the related initializers. Fix this. Signed-off-by: Laurent Pinchart Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/omap3isp/isppreview.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/media/video/omap3isp/isppreview.c b/drivers/media/video/omap3isp/isppreview.c index a48a747b6fcc..dd91da26f1b0 100644 --- a/drivers/media/video/omap3isp/isppreview.c +++ b/drivers/media/video/omap3isp/isppreview.c @@ -888,12 +888,12 @@ static const struct preview_update update_attrs[] = { preview_config_contrast, NULL, offsetof(struct prev_params, contrast), - 0, true, + 0, 0, true, }, /* OMAP3ISP_PREV_BRIGHTNESS */ { preview_config_brightness, NULL, offsetof(struct prev_params, brightness), - 0, true, + 0, 0, true, }, }; -- cgit v1.2.3-59-g8ed1b From 4e39da01027eb73556c1ad416945e37f2771464e Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Mon, 4 Jun 2012 13:15:56 -0300 Subject: [media] s5p-fimc: Add missing FIMC-LITE file operations locking commit 5126f2590bee412e3053de851cb07f531e4be36a "v4l2-dev: add flag to have the core lock all file operations" introduced an additional bit flag (V4L2_FL_LOCK_ALL_FOPS) that should be set by drivers that use the v4l2 core lock for all file operations. Since this driver has been merged at the same time as the core changes it doesn't set this flags and thus its all file operations except IOCTL are not properly serialized. Fix this by adding file ops locking in the driver. Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- drivers/media/video/s5p-fimc/fimc-lite.c | 61 +++++++++++++++++++++++--------- 1 file changed, 44 insertions(+), 17 deletions(-) diff --git a/drivers/media/video/s5p-fimc/fimc-lite.c b/drivers/media/video/s5p-fimc/fimc-lite.c index 4d269b8fa1ef..74ff310db30c 100644 --- a/drivers/media/video/s5p-fimc/fimc-lite.c +++ b/drivers/media/video/s5p-fimc/fimc-lite.c @@ -453,34 +453,42 @@ static int fimc_lite_open(struct file *file) struct fimc_lite *fimc = video_drvdata(file); int ret; + if (mutex_lock_interruptible(&fimc->lock)) + return -ERESTARTSYS; + set_bit(ST_FLITE_IN_USE, &fimc->state); ret = pm_runtime_get_sync(&fimc->pdev->dev); if (ret < 0) - return ret; - - if (++fimc->ref_count != 1 || fimc->out_path != FIMC_IO_DMA) - return 0; + goto done; ret = v4l2_fh_open(file); if (ret < 0) - return ret; + goto done; - ret = fimc_pipeline_initialize(&fimc->pipeline, &fimc->vfd->entity, - true); - if (ret < 0) { - pm_runtime_put_sync(&fimc->pdev->dev); - fimc->ref_count--; - v4l2_fh_release(file); - clear_bit(ST_FLITE_IN_USE, &fimc->state); - } + if (++fimc->ref_count == 1 && fimc->out_path == FIMC_IO_DMA) { + ret = fimc_pipeline_initialize(&fimc->pipeline, + &fimc->vfd->entity, true); + if (ret < 0) { + pm_runtime_put_sync(&fimc->pdev->dev); + fimc->ref_count--; + v4l2_fh_release(file); + clear_bit(ST_FLITE_IN_USE, &fimc->state); + } - fimc_lite_clear_event_counters(fimc); + fimc_lite_clear_event_counters(fimc); + } +done: + mutex_unlock(&fimc->lock); return ret; } static int fimc_lite_close(struct file *file) { struct fimc_lite *fimc = video_drvdata(file); + int ret; + + if (mutex_lock_interruptible(&fimc->lock)) + return -ERESTARTSYS; if (--fimc->ref_count == 0 && fimc->out_path == FIMC_IO_DMA) { clear_bit(ST_FLITE_IN_USE, &fimc->state); @@ -494,20 +502,39 @@ static int fimc_lite_close(struct file *file) if (fimc->ref_count == 0) vb2_queue_release(&fimc->vb_queue); - return v4l2_fh_release(file); + ret = v4l2_fh_release(file); + + mutex_unlock(&fimc->lock); + return ret; } static unsigned int fimc_lite_poll(struct file *file, struct poll_table_struct *wait) { struct fimc_lite *fimc = video_drvdata(file); - return vb2_poll(&fimc->vb_queue, file, wait); + int ret; + + if (mutex_lock_interruptible(&fimc->lock)) + return POLL_ERR; + + ret = vb2_poll(&fimc->vb_queue, file, wait); + mutex_unlock(&fimc->lock); + + return ret; } static int fimc_lite_mmap(struct file *file, struct vm_area_struct *vma) { struct fimc_lite *fimc = video_drvdata(file); - return vb2_mmap(&fimc->vb_queue, vma); + int ret; + + if (mutex_lock_interruptible(&fimc->lock)) + return -ERESTARTSYS; + + ret = vb2_mmap(&fimc->vb_queue, vma); + mutex_unlock(&fimc->lock); + + return ret; } static const struct v4l2_file_operations fimc_lite_fops = { -- cgit v1.2.3-59-g8ed1b From ec3ed85f926f4e900bc48cec6e72abbe6475321f Mon Sep 17 00:00:00 2001 From: Sylwester Nawrocki Date: Wed, 27 Jun 2012 10:12:31 -0300 Subject: [media] Revert "[media] V4L: JPEG class documentation corrections" This reverts commit feed0258e11e04b7e0, as the same issues are already covered in another version of that patch that was also applied (579e92ffac65c717c9c8a50feb755a). Signed-off-by: Sylwester Nawrocki Signed-off-by: Kyungmin Park Signed-off-by: Mauro Carvalho Chehab --- Documentation/DocBook/media/v4l/controls.xml | 2 +- Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml | 7 ------- 2 files changed, 1 insertion(+), 8 deletions(-) diff --git a/Documentation/DocBook/media/v4l/controls.xml b/Documentation/DocBook/media/v4l/controls.xml index 89941329290e..43ca749fc5e3 100644 --- a/Documentation/DocBook/media/v4l/controls.xml +++ b/Documentation/DocBook/media/v4l/controls.xml @@ -3988,7 +3988,7 @@ interface and may change in the future. from RGB to Y'CbCr color space. - + diff --git a/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml b/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml index e3d5afcdafbb..0a4b90fcf2da 100644 --- a/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml +++ b/Documentation/DocBook/media/v4l/vidioc-g-ext-ctrls.xml @@ -284,13 +284,6 @@ These controls are described in . - - V4L2_CTRL_CLASS_JPEG - 0x9d0000 - The class containing JPEG compression controls. -These controls are described in . - -- cgit v1.2.3-59-g8ed1b From c540521bba5d2f24bd2c0417157bfaf8b85e2eee Mon Sep 17 00:00:00 2001 From: Andy Lutomirski Date: Thu, 5 Jul 2012 11:23:24 -0700 Subject: security: Minor improvements to no_new_privs documentation The documentation didn't actually mention how to enable no_new_privs. This also adds a note about possible interactions between no_new_privs and LSMs (i.e. why teaching systemd to set no_new_privs is not necessarily a good idea), and it references the new docs from include/linux/prctl.h. Suggested-by: Rob Landley Signed-off-by: Andy Lutomirski Acked-by: Kees Cook Signed-off-by: James Morris --- Documentation/prctl/no_new_privs.txt | 7 +++++++ include/linux/prctl.h | 2 ++ 2 files changed, 9 insertions(+) diff --git a/Documentation/prctl/no_new_privs.txt b/Documentation/prctl/no_new_privs.txt index cb705ec69abe..f7be84fba910 100644 --- a/Documentation/prctl/no_new_privs.txt +++ b/Documentation/prctl/no_new_privs.txt @@ -25,6 +25,13 @@ bits will no longer change the uid or gid; file capabilities will not add to the permitted set, and LSMs will not relax constraints after execve. +To set no_new_privs, use prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0). + +Be careful, though: LSMs might also not tighten constraints on exec +in no_new_privs mode. (This means that setting up a general-purpose +service launcher to set no_new_privs before execing daemons may +interfere with LSM-based sandboxing.) + Note that no_new_privs does not prevent privilege changes that do not involve execve. An appropriately privileged task can still call setuid(2) and receive SCM_RIGHTS datagrams. diff --git a/include/linux/prctl.h b/include/linux/prctl.h index 3988012255dc..289760f424aa 100644 --- a/include/linux/prctl.h +++ b/include/linux/prctl.h @@ -141,6 +141,8 @@ * Changing LSM security domain is considered a new privilege. So, for example, * asking selinux for a specific new context (e.g. with runcon) will result * in execve returning -EPERM. + * + * See Documentation/prctl/no_new_privs.txt for more details. */ #define PR_SET_NO_NEW_PRIVS 38 #define PR_GET_NO_NEW_PRIVS 39 -- cgit v1.2.3-59-g8ed1b From 476a7eeb60e70ddab138e7cb4bc44ef5ac20782e Mon Sep 17 00:00:00 2001 From: Shinya Kuribayashi Date: Sat, 7 Jul 2012 13:37:42 +0300 Subject: hwspinlock/core: use global ID to register hwspinlocks on multiple devices Commit 300bab9770 (hwspinlock/core: register a bank of hwspinlocks in a single API call, 2011-09-06) introduced 'hwspin_lock_register_single()' to register numerous (a bank of) hwspinlock instances in a single API, 'hwspin_lock_register()'. At which time, 'hwspin_lock_register()' accidentally passes 'local IDs' to 'hwspin_lock_register_single()', despite that ..._single() requires 'global IDs' to register hwspinlocks. We have to convert into global IDs by supplying the missing 'base_id'. Cc: stable Signed-off-by: Shinya Kuribayashi [ohad: fix error path of hwspin_lock_register, too] Signed-off-by: Ohad Ben-Cohen --- drivers/hwspinlock/hwspinlock_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/hwspinlock/hwspinlock_core.c b/drivers/hwspinlock/hwspinlock_core.c index 61c9cf15fa52..1201a15784c3 100644 --- a/drivers/hwspinlock/hwspinlock_core.c +++ b/drivers/hwspinlock/hwspinlock_core.c @@ -345,7 +345,7 @@ int hwspin_lock_register(struct hwspinlock_device *bank, struct device *dev, spin_lock_init(&hwlock->lock); hwlock->bank = bank; - ret = hwspin_lock_register_single(hwlock, i); + ret = hwspin_lock_register_single(hwlock, base_id + i); if (ret) goto reg_failed; } @@ -354,7 +354,7 @@ int hwspin_lock_register(struct hwspinlock_device *bank, struct device *dev, reg_failed: while (--i >= 0) - hwspin_lock_unregister_single(i); + hwspin_lock_unregister_single(base_id + i); return ret; } EXPORT_SYMBOL_GPL(hwspin_lock_register); -- cgit v1.2.3-59-g8ed1b From 7db5b3ca0ecdb2e8fad52a4770e4e320e61c77a6 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 7 Jul 2012 15:55:47 -0700 Subject: Revert "cgroup: superblock can't be released with active dentries" This reverts commit fa980ca87d15bb8a1317853f257a505990f3ffde. The commit was an attempt to fix a race condition where a cgroup hierarchy may be unmounted with positive dentry reference on root cgroup. While the commit made the race condition slightly more difficult to trigger, the race was still there and could be reliably triggered using a different test case. Revert the incorrect fix. The next commit will describe the race and fix it correctly. Signed-off-by: Tejun Heo LKML-Reference: <4FEEA5CB.8070809@huawei.com> Reported-by: shyju pv Cc: Sasha Levin Acked-by: Li Zefan --- kernel/cgroup.c | 17 +++-------------- 1 file changed, 3 insertions(+), 14 deletions(-) diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 2097684cf194..5f134a0e0e3f 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -901,13 +901,10 @@ static void cgroup_diput(struct dentry *dentry, struct inode *inode) mutex_unlock(&cgroup_mutex); /* - * We want to drop the active superblock reference from the - * cgroup creation after all the dentry refs are gone - - * kill_sb gets mighty unhappy otherwise. Mark - * dentry->d_fsdata with cgroup_diput() to tell - * cgroup_d_release() to call deactivate_super(). + * Drop the active superblock reference that we took when we + * created the cgroup */ - dentry->d_fsdata = cgroup_diput; + deactivate_super(cgrp->root->sb); /* * if we're getting rid of the cgroup, refcount should ensure @@ -933,13 +930,6 @@ static int cgroup_delete(const struct dentry *d) return 1; } -static void cgroup_d_release(struct dentry *dentry) -{ - /* did cgroup_diput() tell me to deactivate super? */ - if (dentry->d_fsdata == cgroup_diput) - deactivate_super(dentry->d_sb); -} - static void remove_dir(struct dentry *d) { struct dentry *parent = dget(d->d_parent); @@ -1547,7 +1537,6 @@ static int cgroup_get_rootdir(struct super_block *sb) static const struct dentry_operations cgroup_dops = { .d_iput = cgroup_diput, .d_delete = cgroup_delete, - .d_release = cgroup_d_release, }; struct inode *inode = -- cgit v1.2.3-59-g8ed1b From 5db9a4d99b0157a513944e9a44d29c9cec2e91dc Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Sat, 7 Jul 2012 16:08:18 -0700 Subject: cgroup: fix cgroup hierarchy umount race 48ddbe1946 "cgroup: make css->refcnt clearing on cgroup removal optional" allowed a css to linger after the associated cgroup is removed. As a css holds a reference on the cgroup's dentry, it means that cgroup dentries may linger for a while. Destroying a superblock which has dentries with positive refcnts is a critical bug and triggers BUG() in vfs code. As each cgroup dentry holds an s_active reference, any lingering cgroup has both its dentry and the superblock pinned and thus preventing premature release of superblock. Unfortunately, after 48ddbe1946, there's a small window while releasing a cgroup which is directly under the root of the hierarchy. When a cgroup directory is released, vfs layer first deletes the corresponding dentry and then invokes dput() on the parent, which may recurse further, so when a cgroup directly below root cgroup is released, the cgroup is first destroyed - which releases the s_active it was holding - and then the dentry for the root cgroup is dput(). This creates a window where the root dentry's refcnt isn't zero but superblock's s_active is. If umount happens before or during this window, vfs will see the root dentry with non-zero refcnt and trigger BUG(). Before 48ddbe1946, this problem didn't exist because the last dentry reference was guaranteed to be put synchronously from rmdir(2) invocation which holds s_active around the whole process. Fix it by holding an extra superblock->s_active reference across dput() from css release, which is the dput() path added by 48ddbe1946 and the only one which doesn't hold an extra s_active ref across the final cgroup dput(). Signed-off-by: Tejun Heo LKML-Reference: <4FEEA5CB.8070809@huawei.com> Reported-by: shyju pv Tested-by: shyju pv Cc: Sasha Levin Acked-by: Li Zefan --- kernel/cgroup.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 5f134a0e0e3f..b303dfc7dce0 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -3883,8 +3883,12 @@ static void css_dput_fn(struct work_struct *work) { struct cgroup_subsys_state *css = container_of(work, struct cgroup_subsys_state, dput_work); + struct dentry *dentry = css->cgroup->dentry; + struct super_block *sb = dentry->d_sb; - dput(css->cgroup->dentry); + atomic_inc(&sb->s_active); + dput(dentry); + deactivate_super(sb); } static void init_cgroup_css(struct cgroup_subsys_state *css, -- cgit v1.2.3-59-g8ed1b From 332a2e1244bd08b9e3ecd378028513396a004a24 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 7 Jul 2012 10:17:00 -0700 Subject: vfs: make O_PATH file descriptors usable for 'fchdir()' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We already use them for openat() and friends, but fchdir() also wants to be able to use O_PATH file descriptors. This should make it comparable to the O_SEARCH of Solaris. In particular, O_PATH allows you to access (not-quite-open) a directory you don't have read persmission to, only execute permission. Noticed during development of multithread support for ksh93. Reported-by: ольга крыжановская Cc: Al Viro Cc: stable@kernel.org # O_PATH introduced in 3.0+ Signed-off-by: Linus Torvalds --- fs/open.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/fs/open.c b/fs/open.c index d6c79a0dffc7..1540632d8387 100644 --- a/fs/open.c +++ b/fs/open.c @@ -397,10 +397,10 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd) { struct file *file; struct inode *inode; - int error; + int error, fput_needed; error = -EBADF; - file = fget(fd); + file = fget_raw_light(fd, &fput_needed); if (!file) goto out; @@ -414,7 +414,7 @@ SYSCALL_DEFINE1(fchdir, unsigned int, fd) if (!error) set_fs_pwd(current->fs, &file->f_path); out_putf: - fput(file); + fput_light(file, fput_needed); out: return error; } -- cgit v1.2.3-59-g8ed1b From bd0a521e88aa7a06ae7aabaed7ae196ed4ad867a Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 7 Jul 2012 17:23:56 -0700 Subject: Linux 3.5-rc6 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Makefile b/Makefile index 81ea15450049..bf02707a5e9b 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 5 SUBLEVEL = 0 -EXTRAVERSION = -rc5 +EXTRAVERSION = -rc6 NAME = Saber-toothed Squirrel # *DOCUMENTATION* -- cgit v1.2.3-59-g8ed1b From 222a806af830fda34ad1f6bc991cd226916de060 Mon Sep 17 00:00:00 2001 From: Mark Rustad Date: Thu, 21 Jun 2012 12:23:42 -0700 Subject: [SCSI] Fix NULL dereferences in scsi_cmd_to_driver Avoid crashing if the private_data pointer happens to be NULL. This has been seen sometimes when a host reset happens, notably when there are many LUNs: host3: Assigned Port ID 0c1601 scsi host3: libfc: Host reset succeeded on port (0c1601) BUG: unable to handle kernel NULL pointer dereference at 0000000000000350 IP: [] scsi_send_eh_cmnd+0x58/0x3a0 Process scsi_eh_3 (pid: 4144, threadinfo ffff88030920c000, task ffff880326b160c0) Stack: 000000010372e6ba 0000000000000282 000027100920dca0 ffffffffa0038ee0 0000000000000000 0000000000030003 ffff88030920dc80 ffff88030920dc80 00000002000e0000 0000000a00004000 ffff8803242f7760 ffff88031326ed80 Call Trace: [] ? lock_timer_base+0x70/0x70 [] scsi_eh_tur+0x3e/0xc0 [] scsi_eh_test_devices+0x76/0x170 [] scsi_eh_host_reset+0x85/0x160 [] scsi_eh_ready_devs+0x91/0x110 [] scsi_unjam_host+0xed/0x1f0 [] scsi_error_handler+0x1a8/0x200 [] ? scsi_unjam_host+0x1f0/0x1f0 [] kthread+0x9e/0xb0 [] kernel_thread_helper+0x4/0x10 [] ? kthread_freezable_should_stop+0x70/0x70 [] ? gs_change+0x13/0x13 Code: 25 28 00 00 00 48 89 45 c8 31 c0 48 8b 87 80 00 00 00 48 8d b5 60 ff ff ff 89 d1 48 89 fb 41 89 d6 4c 89 fa 48 8b 80 b8 00 00 00 <48> 8b 80 50 03 00 00 48 8b 00 48 89 85 38 ff ff ff 48 8b 07 4c RIP [] scsi_send_eh_cmnd+0x58/0x3a0 RSP CR2: 0000000000000350 Signed-off-by: Mark Rustad Tested-by: Marcus Dennis Cc: Signed-off-by: James Bottomley --- include/scsi/scsi_cmnd.h | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/include/scsi/scsi_cmnd.h b/include/scsi/scsi_cmnd.h index 1e1198546c72..ac06cc595890 100644 --- a/include/scsi/scsi_cmnd.h +++ b/include/scsi/scsi_cmnd.h @@ -134,10 +134,16 @@ struct scsi_cmnd { static inline struct scsi_driver *scsi_cmd_to_driver(struct scsi_cmnd *cmd) { + struct scsi_driver **sdp; + if (!cmd->request->rq_disk) return NULL; - return *(struct scsi_driver **)cmd->request->rq_disk->private_data; + sdp = (struct scsi_driver **)cmd->request->rq_disk->private_data; + if (!sdp) + return NULL; + + return *sdp; } extern struct scsi_cmnd *scsi_get_command(struct scsi_device *, gfp_t); -- cgit v1.2.3-59-g8ed1b From 6ef1b512f4e6f936d89aa20be3d97a7ec7c290ac Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Fri, 22 Jun 2012 10:52:34 -0700 Subject: [SCSI] libsas: fix taskfile corruption in sas_ata_qc_fill_rtf fill_result_tf() grabs the taskfile flags from the originating qc which sas_ata_qc_fill_rtf() promptly overwrites. The presence of an ata_taskfile in the sata_device makes it tempting to just copy the full contents in sas_ata_qc_fill_rtf(). However, libata really only wants the fis contents and expects the other portions of the taskfile to not be touched by ->qc_fill_rtf. To that end store a fis buffer in the sata_device and use ata_tf_from_fis() like every other ->qc_fill_rtf() implementation. Cc: Reported-by: Praveen Murali Tested-by: Praveen Murali Signed-off-by: Dan Williams Signed-off-by: James Bottomley --- drivers/scsi/aic94xx/aic94xx_task.c | 2 +- drivers/scsi/libsas/sas_ata.c | 12 ++++++------ include/scsi/libsas.h | 6 ++++-- 3 files changed, 11 insertions(+), 9 deletions(-) diff --git a/drivers/scsi/aic94xx/aic94xx_task.c b/drivers/scsi/aic94xx/aic94xx_task.c index 532d212b6b2c..393e7ce8e95a 100644 --- a/drivers/scsi/aic94xx/aic94xx_task.c +++ b/drivers/scsi/aic94xx/aic94xx_task.c @@ -201,7 +201,7 @@ static void asd_get_response_tasklet(struct asd_ascb *ascb, if (SAS_STATUS_BUF_SIZE >= sizeof(*resp)) { resp->frame_len = le16_to_cpu(*(__le16 *)(r+6)); - memcpy(&resp->ending_fis[0], r+16, 24); + memcpy(&resp->ending_fis[0], r+16, ATA_RESP_FIS_SIZE); ts->buf_valid_size = sizeof(*resp); } } diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index 441d88ad99a7..d109cc3a17b6 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -139,12 +139,12 @@ static void sas_ata_task_done(struct sas_task *task) if (stat->stat == SAS_PROTO_RESPONSE || stat->stat == SAM_STAT_GOOD || ((stat->stat == SAM_STAT_CHECK_CONDITION && dev->sata_dev.command_set == ATAPI_COMMAND_SET))) { - ata_tf_from_fis(resp->ending_fis, &dev->sata_dev.tf); + memcpy(dev->sata_dev.fis, resp->ending_fis, ATA_RESP_FIS_SIZE); if (!link->sactive) { - qc->err_mask |= ac_err_mask(dev->sata_dev.tf.command); + qc->err_mask |= ac_err_mask(dev->sata_dev.fis[2]); } else { - link->eh_info.err_mask |= ac_err_mask(dev->sata_dev.tf.command); + link->eh_info.err_mask |= ac_err_mask(dev->sata_dev.fis[2]); if (unlikely(link->eh_info.err_mask)) qc->flags |= ATA_QCFLAG_FAILED; } @@ -161,8 +161,8 @@ static void sas_ata_task_done(struct sas_task *task) qc->flags |= ATA_QCFLAG_FAILED; } - dev->sata_dev.tf.feature = 0x04; /* status err */ - dev->sata_dev.tf.command = ATA_ERR; + dev->sata_dev.fis[3] = 0x04; /* status err */ + dev->sata_dev.fis[2] = ATA_ERR; } } @@ -269,7 +269,7 @@ static bool sas_ata_qc_fill_rtf(struct ata_queued_cmd *qc) { struct domain_device *dev = qc->ap->private_data; - memcpy(&qc->result_tf, &dev->sata_dev.tf, sizeof(qc->result_tf)); + ata_tf_from_fis(dev->sata_dev.fis, &qc->result_tf); return true; } diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index f4f1c96dca72..10ce74f589c5 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -163,6 +163,8 @@ enum ata_command_set { ATAPI_COMMAND_SET = 1, }; +#define ATA_RESP_FIS_SIZE 24 + struct sata_device { enum ata_command_set command_set; struct smp_resp rps_resp; /* report_phy_sata_resp */ @@ -171,7 +173,7 @@ struct sata_device { struct ata_port *ap; struct ata_host ata_host; - struct ata_taskfile tf; + u8 fis[ATA_RESP_FIS_SIZE]; }; enum { @@ -537,7 +539,7 @@ enum exec_status { */ struct ata_task_resp { u16 frame_len; - u8 ending_fis[24]; /* dev to host or data-in */ + u8 ending_fis[ATA_RESP_FIS_SIZE]; /* dev to host or data-in */ }; #define SAS_STATUS_BUF_SIZE 96 -- cgit v1.2.3-59-g8ed1b From a77171806515fb5e2288219ddb47af1f0b1328e7 Mon Sep 17 00:00:00 2001 From: Eddie Wai Date: Fri, 29 Jun 2012 16:37:35 -0700 Subject: [SCSI] bnx2i: Removed the reference to the netdev->base_addr The netdev->base_addr parameter has been deprecated in the L2 bnx2 driver. This is used by bnx2i for the BARn iomapping. This patch will directly reference the pci_resource_start instead of using the deprecated netdev->base_addr. This patch is actually a critical bug fix as the 1G bnx2 driver no longer supports the netdev->base_addr in the current kernel of the scsi tree. This means that Broadcom's 1G Linux iSCSI offload solution would not work at all without this patch. Signed-off-by: Eddie Wai Reviewed-by: Mike Christie Signed-off-by: James Bottomley --- drivers/scsi/bnx2i/bnx2i.h | 1 + drivers/scsi/bnx2i/bnx2i_hwi.c | 3 +-- drivers/scsi/bnx2i/bnx2i_iscsi.c | 10 +++++----- 3 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/bnx2i/bnx2i.h b/drivers/scsi/bnx2i/bnx2i.h index 0c53c28dc3d3..7e77cf620291 100644 --- a/drivers/scsi/bnx2i/bnx2i.h +++ b/drivers/scsi/bnx2i/bnx2i.h @@ -350,6 +350,7 @@ struct bnx2i_hba { struct pci_dev *pcidev; struct net_device *netdev; void __iomem *regview; + resource_size_t reg_base; u32 age; unsigned long cnic_dev_type; diff --git a/drivers/scsi/bnx2i/bnx2i_hwi.c b/drivers/scsi/bnx2i/bnx2i_hwi.c index ece47e502282..86a12b48e477 100644 --- a/drivers/scsi/bnx2i/bnx2i_hwi.c +++ b/drivers/scsi/bnx2i/bnx2i_hwi.c @@ -2724,7 +2724,6 @@ int bnx2i_map_ep_dbell_regs(struct bnx2i_endpoint *ep) goto arm_cq; } - reg_base = ep->hba->netdev->base_addr; if ((test_bit(BNX2I_NX2_DEV_5709, &ep->hba->cnic_dev_type)) && (ep->hba->mail_queue_access == BNX2I_MQ_BIN_MODE)) { config2 = REG_RD(ep->hba, BNX2_MQ_CONFIG2); @@ -2740,7 +2739,7 @@ int bnx2i_map_ep_dbell_regs(struct bnx2i_endpoint *ep) /* 5709 device in normal node and 5706/5708 devices */ reg_off = CTX_OFFSET + (MB_KERNEL_CTX_SIZE * cid_num); - ep->qp.ctx_base = ioremap_nocache(reg_base + reg_off, + ep->qp.ctx_base = ioremap_nocache(ep->hba->reg_base + reg_off, MB_KERNEL_CTX_SIZE); if (!ep->qp.ctx_base) return -ENOMEM; diff --git a/drivers/scsi/bnx2i/bnx2i_iscsi.c b/drivers/scsi/bnx2i/bnx2i_iscsi.c index f8d516b53161..621538b8b544 100644 --- a/drivers/scsi/bnx2i/bnx2i_iscsi.c +++ b/drivers/scsi/bnx2i/bnx2i_iscsi.c @@ -811,13 +811,13 @@ struct bnx2i_hba *bnx2i_alloc_hba(struct cnic_dev *cnic) bnx2i_identify_device(hba); bnx2i_setup_host_queue_size(hba, shost); + hba->reg_base = pci_resource_start(hba->pcidev, 0); if (test_bit(BNX2I_NX2_DEV_5709, &hba->cnic_dev_type)) { - hba->regview = ioremap_nocache(hba->netdev->base_addr, - BNX2_MQ_CONFIG2); + hba->regview = pci_iomap(hba->pcidev, 0, BNX2_MQ_CONFIG2); if (!hba->regview) goto ioreg_map_err; } else if (test_bit(BNX2I_NX2_DEV_57710, &hba->cnic_dev_type)) { - hba->regview = ioremap_nocache(hba->netdev->base_addr, 4096); + hba->regview = pci_iomap(hba->pcidev, 0, 4096); if (!hba->regview) goto ioreg_map_err; } @@ -884,7 +884,7 @@ cid_que_err: bnx2i_free_mp_bdt(hba); mp_bdt_mem_err: if (hba->regview) { - iounmap(hba->regview); + pci_iounmap(hba->pcidev, hba->regview); hba->regview = NULL; } ioreg_map_err: @@ -910,7 +910,7 @@ void bnx2i_free_hba(struct bnx2i_hba *hba) pci_dev_put(hba->pcidev); if (hba->regview) { - iounmap(hba->regview); + pci_iounmap(hba->pcidev, hba->regview); hba->regview = NULL; } bnx2i_free_mp_bdt(hba); -- cgit v1.2.3-59-g8ed1b From 736f29cd6b7af9646a21a34866cd16277e03ee69 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Wed, 4 Jul 2012 18:13:48 +0530 Subject: OMAPDSS: Use PM notifiers for system suspend The current way how omapdss handles system suspend and resume is that omapdss device (a platform device, which is not part of the device hierarchy of the DSS HW devices, like DISPC and DSI, or panels.) uses the suspend and resume callbacks from platform_driver to handle system suspend. It does this by disabling all enabled panels on suspend, and resuming the previously disabled panels on resume. This presents a few problems. One is that as omapdss device is not related to the panel devices or the DSS HW devices, there's no ordering in the suspend process. This means that suspend could be first ran for DSS HW devices and panels, and only then for omapdss device. Currently this is not a problem, as DSS HW devices and panels do not handle suspend. Another, more pressing problem, is that when suspending or resuming, the runtime PM functions return -EACCES as runtime PM is disabled during system suspend. This causes the driver to print warnings, and operations to fail as they think that they failed to bring up the HW. This patch changes the omapdss suspend handling to use PM notifiers, which are called before suspend and after resume. This way we have a normally functioning system when we are suspending and resuming the panels. This patch, I believe, creates a problem that somebody could enable or disable a panel between PM_SUSPEND_PREPARE and the system suspend, and similarly the other way around in resume. I choose to ignore the problem for now, as it sounds rather unlikely, and if it happens, it's not fatal. In the long run the system suspend handling of omapdss and panels should be thought out properly. The current approach feels rather hacky. Perhaps the panel drivers should handle system suspend, or the users of omapdss (omapfb, omapdrm) should handle system suspend. Note that after this patch we could probably revert 0eaf9f52e94f756147dbfe1faf1f77a02378dbf9 (OMAPDSS: use sync versions of pm_runtime_put). But as I said, this patch may be temporary, so let's leave the sync version still in place. Signed-off-by: Tomi Valkeinen Reported-by: Jassi Brar Tested-by: Jassi Brar Tested-by: Joe Woodward Signed-off-by: Archit Taneja [fts: fixed 2 brace coding style issues] Signed-off-by: Florian Tobias Schandinat --- drivers/video/omap2/dss/core.c | 43 ++++++++++++++++++++++++++---------------- 1 file changed, 27 insertions(+), 16 deletions(-) diff --git a/drivers/video/omap2/dss/core.c b/drivers/video/omap2/dss/core.c index 5066eee10ccf..58bd9c27369d 100644 --- a/drivers/video/omap2/dss/core.c +++ b/drivers/video/omap2/dss/core.c @@ -32,6 +32,7 @@ #include #include #include +#include #include