diff options
| author |   Ingo Molnar <mingo@kernel.org> | 2018-05-31 12:27:56 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-05-31 12:27:56 +0200 |
| commit | c52b5c5f96b217854a953689f65234f7448c7f47 (patch) | |
| tree | cb9e41e3c25965e550b28f5aa5467cce5983125a | |
| parent | perf/x86: Store user space frame-pointer value on a sample (diff) | |
| parent | Merge tag 'nds32-for-linus-4.17-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/greentime/linux (diff) | |
| download | linux-dev-c52b5c5f96b217854a953689f65234f7448c7f47.tar.xz linux-dev-c52b5c5f96b217854a953689f65234f7448c7f47.zip | |
Merge branch 'linus' into perf/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
130 files changed, 1048 insertions, 481 deletions
diff --git a/Documentation/networking/ppp_generic.txt b/Documentation/networking/ppp_generic.txt index 091d20273dcb..61daf4b39600 100644 --- a/Documentation/networking/ppp_generic.txt +++ b/Documentation/networking/ppp_generic.txt @@ -300,12 +300,6 @@ unattached instance are: The ioctl calls available on an instance of /dev/ppp attached to a channel are: -* PPPIOCDETACH detaches the instance from the channel. This ioctl is - deprecated since the same effect can be achieved by closing the - instance. In order to prevent possible races this ioctl will fail - with an EINVAL error if more than one file descriptor refers to this - instance (i.e. as a result of dup(), dup2() or fork()). - * PPPIOCCONNECT connects this channel to a PPP interface. The argument should point to an int containing the interface unit number. It will return an EINVAL error if the channel is already diff --git a/MAINTAINERS b/MAINTAINERS index a9ca122957e9..ca4afd68530c 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -2332,7 +2332,7 @@ F: drivers/gpio/gpio-ath79.c F: Documentation/devicetree/bindings/gpio/gpio-ath79.txt ATHEROS ATH GENERIC UTILITIES -M: "Luis R. Rodriguez" <mcgrof@do-not-panic.com> +M: Kalle Valo <kvalo@codeaurora.org> L: linux-wireless@vger.kernel.org S: Supported F: drivers/net/wireless/ath/* @@ -2347,7 +2347,7 @@ S: Maintained F: drivers/net/wireless/ath/ath5k/ ATHEROS ATH6KL WIRELESS DRIVER -M: Kalle Valo <kvalo@qca.qualcomm.com> +M: Kalle Valo <kvalo@codeaurora.org> L: linux-wireless@vger.kernel.org W: http://wireless.kernel.org/en/users/Drivers/ath6kl T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git @@ -6503,9 +6503,15 @@ F: Documentation/networking/hinic.txt F: drivers/net/ethernet/huawei/hinic/ HUGETLB FILESYSTEM -M: Nadia Yvette Chambers <nyc@holomorphy.com> +M: Mike Kravetz <mike.kravetz@oracle.com> +L: linux-mm@kvack.org S: Maintained F: fs/hugetlbfs/ +F: mm/hugetlb.c +F: include/linux/hugetlb.h +F: Documentation/admin-guide/mm/hugetlbpage.rst +F: Documentation/vm/hugetlbfs_reserv.rst +F: Documentation/ABI/testing/sysfs-kernel-mm-hugepages HVA ST MEDIA DRIVER M: Jean-Christophe Trotin <jean-christophe.trotin@st.com> @@ -11626,7 +11632,7 @@ S: Maintained F: drivers/media/tuners/qt1010* QUALCOMM ATHEROS ATH10K WIRELESS DRIVER -M: Kalle Valo <kvalo@qca.qualcomm.com> +M: Kalle Valo <kvalo@codeaurora.org> L: ath10k@lists.infradead.org W: http://wireless.kernel.org/en/users/Drivers/ath10k T: git git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/ath.git @@ -11677,7 +11683,7 @@ S: Maintained F: drivers/media/platform/qcom/venus/ QUALCOMM WCN36XX WIRELESS DRIVER -M: Eugene Krasnikov <k.eugene.e@gmail.com> +M: Kalle Valo <kvalo@codeaurora.org> L: wcn36xx@lists.infradead.org W: http://wireless.kernel.org/en/users/Drivers/wcn36xx T: git git://github.com/KrasnikovEugene/wcn36xx.git @@ -2,7 +2,7 @@ VERSION = 4 PATCHLEVEL = 17 SUBLEVEL = 0 -EXTRAVERSION = -rc6 +EXTRAVERSION = -rc7 NAME = Merciless Moray # *DOCUMENTATION* @@ -500,6 +500,9 @@ RETPOLINE_CFLAGS_CLANG := -mretpoline-external-thunk RETPOLINE_CFLAGS := $(call cc-option,$(RETPOLINE_CFLAGS_GCC),$(call cc-option,$(RETPOLINE_CFLAGS_CLANG))) export RETPOLINE_CFLAGS +KBUILD_CFLAGS += $(call cc-option,-fno-PIE) +KBUILD_AFLAGS += $(call cc-option,-fno-PIE) + # check for 'asm goto' ifeq ($(call shell-cached,$(CONFIG_SHELL) $(srctree)/scripts/gcc-goto.sh $(CC) $(KBUILD_CFLAGS)), y) CC_HAVE_ASM_GOTO := 1 @@ -621,9 +624,9 @@ endif # $(dot-config) # Defaults to vmlinux, but the arch makefile usually adds further targets all: vmlinux -KBUILD_CFLAGS += $(call cc-option,-fno-PIE) -KBUILD_AFLAGS += $(call cc-option,-fno-PIE) -CFLAGS_GCOV := -fprofile-arcs -ftest-coverage -fno-tree-loop-im $(call cc-disable-warning,maybe-uninitialized,) +CFLAGS_GCOV := -fprofile-arcs -ftest-coverage \ + $(call cc-option,-fno-tree-loop-im) \ + $(call cc-disable-warning,maybe-uninitialized,) export CFLAGS_GCOV CFLAGS_KCOV # The arch Makefile can set ARCH_{CPP,A,C}FLAGS to override the default diff --git a/arch/arm/boot/dts/sun4i-a10.dtsi b/arch/arm/boot/dts/sun4i-a10.dtsi index 77e8436beed4..3a1c6b45c9a1 100644 --- a/arch/arm/boot/dts/sun4i-a10.dtsi +++ b/arch/arm/boot/dts/sun4i-a10.dtsi @@ -76,7 +76,7 @@ allwinner,pipeline = "de_fe0-de_be0-lcd0-hdmi"; clocks = <&ccu CLK_AHB_LCD0>, <&ccu CLK_AHB_HDMI0>, <&ccu CLK_AHB_DE_BE0>, <&ccu CLK_AHB_DE_FE0>, - <&ccu CLK_DE_BE0>, <&ccu CLK_AHB_DE_FE0>, + <&ccu CLK_DE_BE0>, <&ccu CLK_DE_FE0>, <&ccu CLK_TCON0_CH1>, <&ccu CLK_HDMI>, <&ccu CLK_DRAM_DE_FE0>, <&ccu CLK_DRAM_DE_BE0>; status = "disabled"; @@ -88,7 +88,7 @@ allwinner,pipeline = "de_fe0-de_be0-lcd0"; clocks = <&ccu CLK_AHB_LCD0>, <&ccu CLK_AHB_DE_BE0>, <&ccu CLK_AHB_DE_FE0>, <&ccu CLK_DE_BE0>, - <&ccu CLK_AHB_DE_FE0>, <&ccu CLK_TCON0_CH0>, + <&ccu CLK_DE_FE0>, <&ccu CLK_TCON0_CH0>, <&ccu CLK_DRAM_DE_FE0>, <&ccu CLK_DRAM_DE_BE0>; status = "disabled"; }; @@ -99,7 +99,7 @@ allwinner,pipeline = "de_fe0-de_be0-lcd0-tve0"; clocks = <&ccu CLK_AHB_TVE0>, <&ccu CLK_AHB_LCD0>, <&ccu CLK_AHB_DE_BE0>, <&ccu CLK_AHB_DE_FE0>, - <&ccu CLK_DE_BE0>, <&ccu CLK_AHB_DE_FE0>, + <&ccu CLK_DE_BE0>, <&ccu CLK_DE_FE0>, <&ccu CLK_TCON0_CH1>, <&ccu CLK_DRAM_TVE0>, <&ccu CLK_DRAM_DE_FE0>, <&ccu CLK_DRAM_DE_BE0>; status = "disabled"; diff --git a/arch/arm/boot/dts/sun8i-h3-orangepi-one.dts b/arch/arm/boot/dts/sun8i-h3-orangepi-one.dts index 3328fe583c9b..232f124ce62c 100644 --- a/arch/arm/boot/dts/sun8i-h3-orangepi-one.dts +++ b/arch/arm/boot/dts/sun8i-h3-orangepi-one.dts @@ -117,6 +117,7 @@ phy-handle = <&int_mii_phy>; phy-mode = "mii"; allwinner,leds-active-low; + status = "okay"; }; &hdmi { diff --git a/arch/arm/boot/dts/sun8i-v3s-licheepi-zero-dock.dts b/arch/arm/boot/dts/sun8i-v3s-licheepi-zero-dock.dts index d1311098ea45..ad173605b1b8 100644 --- a/arch/arm/boot/dts/sun8i-v3s-licheepi-zero-dock.dts +++ b/arch/arm/boot/dts/sun8i-v3s-licheepi-zero-dock.dts @@ -51,7 +51,7 @@ leds { /* The LEDs use PG0~2 pins, which conflict with MMC1 */ - status = "disbaled"; + status = "disabled"; }; }; diff --git a/arch/arm/mach-ep93xx/core.c b/arch/arm/mach-ep93xx/core.c index e70feec6fad5..0581ffbedddd 100644 --- a/arch/arm/mach-ep93xx/core.c +++ b/arch/arm/mach-ep93xx/core.c @@ -323,7 +323,7 @@ void __init ep93xx_register_eth(struct ep93xx_eth_data *data, int copy_addr) /* All EP93xx devices use the same two GPIO pins for I2C bit-banging */ static struct gpiod_lookup_table ep93xx_i2c_gpiod_table = { - .dev_id = "i2c-gpio", + .dev_id = "i2c-gpio.0", .table = { /* Use local offsets on gpiochip/port "G" */ GPIO_LOOKUP_IDX("G", 1, NULL, 0, diff --git a/arch/arm/mach-ixp4xx/avila-setup.c b/arch/arm/mach-ixp4xx/avila-setup.c index 77def6169f50..44cbbce6bda6 100644 --- a/arch/arm/mach-ixp4xx/avila-setup.c +++ b/arch/arm/mach-ixp4xx/avila-setup.c @@ -51,7 +51,7 @@ static struct platform_device avila_flash = { }; static struct gpiod_lookup_table avila_i2c_gpiod_table = { - .dev_id = "i2c-gpio", + .dev_id = "i2c-gpio.0", .table = { GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", AVILA_SDA_PIN, NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), diff --git a/arch/arm/mach-ixp4xx/dsmg600-setup.c b/arch/arm/mach-ixp4xx/dsmg600-setup.c index 0f5c99941a7d..397190f3a8da 100644 --- a/arch/arm/mach-ixp4xx/dsmg600-setup.c +++ b/arch/arm/mach-ixp4xx/dsmg600-setup.c @@ -70,7 +70,7 @@ static struct platform_device dsmg600_flash = { }; static struct gpiod_lookup_table dsmg600_i2c_gpiod_table = { - .dev_id = "i2c-gpio", + .dev_id = "i2c-gpio.0", .table = { GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", DSMG600_SDA_PIN, NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), diff --git a/arch/arm/mach-ixp4xx/fsg-setup.c b/arch/arm/mach-ixp4xx/fsg-setup.c index 033f79b35d51..f0a152e365b1 100644 --- a/arch/arm/mach-ixp4xx/fsg-setup.c +++ b/arch/arm/mach-ixp4xx/fsg-setup.c @@ -56,7 +56,7 @@ static struct platform_device fsg_flash = { }; static struct gpiod_lookup_table fsg_i2c_gpiod_table = { - .dev_id = "i2c-gpio", + .dev_id = "i2c-gpio.0", .table = { GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", FSG_SDA_PIN, NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), diff --git a/arch/arm/mach-ixp4xx/ixdp425-setup.c b/arch/arm/mach-ixp4xx/ixdp425-setup.c index b168e2fbdbeb..3ec829d52cdd 100644 --- a/arch/arm/mach-ixp4xx/ixdp425-setup.c +++ b/arch/arm/mach-ixp4xx/ixdp425-setup.c @@ -124,7 +124,7 @@ static struct platform_device ixdp425_flash_nand = { #endif /* CONFIG_MTD_NAND_PLATFORM */ static struct gpiod_lookup_table ixdp425_i2c_gpiod_table = { - .dev_id = "i2c-gpio", + .dev_id = "i2c-gpio.0", .table = { GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", IXDP425_SDA_PIN, NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), diff --git a/arch/arm/mach-ixp4xx/nas100d-setup.c b/arch/arm/mach-ixp4xx/nas100d-setup.c index 76dfff03cb71..4138d6aa4c52 100644 --- a/arch/arm/mach-ixp4xx/nas100d-setup.c +++ b/arch/arm/mach-ixp4xx/nas100d-setup.c @@ -102,7 +102,7 @@ static struct platform_device nas100d_leds = { }; static struct gpiod_lookup_table nas100d_i2c_gpiod_table = { - .dev_id = "i2c-gpio", + .dev_id = "i2c-gpio.0", .table = { GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", NAS100D_SDA_PIN, NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c index 91da63a7d7b5..341b263482ef 100644 --- a/arch/arm/mach-ixp4xx/nslu2-setup.c +++ b/arch/arm/mach-ixp4xx/nslu2-setup.c @@ -70,7 +70,7 @@ static struct platform_device nslu2_flash = { }; static struct gpiod_lookup_table nslu2_i2c_gpiod_table = { - .dev_id = "i2c-gpio", + .dev_id = "i2c-gpio.0", .table = { GPIO_LOOKUP_IDX("IXP4XX_GPIO_CHIP", NSLU2_SDA_PIN, NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), diff --git a/arch/arm/mach-pxa/palmz72.c b/arch/arm/mach-pxa/palmz72.c index 5877e547cecd..0adb1bd6208e 100644 --- a/arch/arm/mach-pxa/palmz72.c +++ b/arch/arm/mach-pxa/palmz72.c @@ -322,7 +322,7 @@ static struct soc_camera_link palmz72_iclink = { }; static struct gpiod_lookup_table palmz72_i2c_gpiod_table = { - .dev_id = "i2c-gpio", + .dev_id = "i2c-gpio.0", .table = { GPIO_LOOKUP_IDX("gpio-pxa", 118, NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c index 90d0f277de55..207dcc2e94e7 100644 --- a/arch/arm/mach-pxa/viper.c +++ b/arch/arm/mach-pxa/viper.c @@ -460,7 +460,7 @@ static struct platform_device smc91x_device = { /* i2c */ static struct gpiod_lookup_table viper_i2c_gpiod_table = { - .dev_id = "i2c-gpio", + .dev_id = "i2c-gpio.1", .table = { GPIO_LOOKUP_IDX("gpio-pxa", VIPER_RTC_I2C_SDA_GPIO, NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), @@ -789,7 +789,7 @@ static int __init viper_tpm_setup(char *str) __setup("tpm=", viper_tpm_setup); struct gpiod_lookup_table viper_tpm_i2c_gpiod_table = { - .dev_id = "i2c-gpio", + .dev_id = "i2c-gpio.2", .table = { GPIO_LOOKUP_IDX("gpio-pxa", VIPER_TPM_I2C_SDA_GPIO, NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), diff --git a/arch/arm/mach-sa1100/simpad.c b/arch/arm/mach-sa1100/simpad.c index ace010479eb6..f45aed2519ba 100644 --- a/arch/arm/mach-sa1100/simpad.c +++ b/arch/arm/mach-sa1100/simpad.c @@ -327,7 +327,7 @@ static struct platform_device simpad_gpio_leds = { * i2c */ static struct gpiod_lookup_table simpad_i2c_gpiod_table = { - .dev_id = "i2c-gpio", + .dev_id = "i2c-gpio.0", .table = { GPIO_LOOKUP_IDX("gpio", 21, NULL, 0, GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN), diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts index 724a0d3b7683..edb4ee0b8896 100644 --- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts +++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts @@ -299,7 +299,6 @@ /* GPIO blocks 16 thru 19 do not appear to be routed to pins */ dwmmc_0: dwmmc0@f723d000 { - max-frequency = <150000000>; cap-mmc-highspeed; mmc-hs200-1_8v; non-removable; diff --git a/arch/arm64/include/asm/atomic_lse.h b/arch/arm64/include/asm/atomic_lse.h index 9ef0797380cb..f9b0b09153e0 100644 --- a/arch/arm64/include/asm/atomic_lse.h +++ b/arch/arm64/include/asm/atomic_lse.h @@ -117,7 +117,7 @@ static inline void atomic_and(int i, atomic_t *v) /* LSE atomics */ " mvn %w[i], %w[i]\n" " stclr %w[i], %[v]") - : [i] "+r" (w0), [v] "+Q" (v->counter) + : [i] "+&r" (w0), [v] "+Q" (v->counter) : "r" (x1) : __LL_SC_CLOBBERS); } @@ -135,7 +135,7 @@ static inline int atomic_fetch_and##name(int i, atomic_t *v) \ /* LSE atomics */ \ " mvn %w[i], %w[i]\n" \ " ldclr" #mb " %w[i], %w[i], %[v]") \ - : [i] "+r" (w0), [v] "+Q" (v->counter) \ + : [i] "+&r" (w0), [v] "+Q" (v->counter) \ : "r" (x1) \ : __LL_SC_CLOBBERS, ##cl); \ \ @@ -161,7 +161,7 @@ static inline void atomic_sub(int i, atomic_t *v) /* LSE atomics */ " neg %w[i], %w[i]\n" " stadd %w[i], %[v]") - : [i] "+r" (w0), [v] "+Q" (v->counter) + : [i] "+&r" (w0), [v] "+Q" (v->counter) : "r" (x1) : __LL_SC_CLOBBERS); } @@ -180,7 +180,7 @@ static inline int atomic_sub_return##name(int i, atomic_t *v) \ " neg %w[i], %w[i]\n" \ " ldadd" #mb " %w[i], w30, %[v]\n" \ " add %w[i], %w[i], w30") \ - : [i] "+r" (w0), [v] "+Q" (v->counter) \ + : [i] "+&r" (w0), [v] "+Q" (v->counter) \ : "r" (x1) \ : __LL_SC_CLOBBERS , ##cl); \ \ @@ -207,7 +207,7 @@ static inline int atomic_fetch_sub##name(int i, atomic_t *v) \ /* LSE atomics */ \ " neg %w[i], %w[i]\n" \ " ldadd" #mb " %w[i], %w[i], %[v]") \ - : [i] "+r" (w0), [v] "+Q" (v->counter) \ + : [i] "+&r" (w0), [v] "+Q" (v->counter) \ : "r" (x1) \ : __LL_SC_CLOBBERS, ##cl); \ \ @@ -314,7 +314,7 @@ static inline void atomic64_and(long i, atomic64_t *v) /* LSE atomics */ " mvn %[i], %[i]\n" " stclr %[i], %[v]") - : [i] "+r" (x0), [v] "+Q" (v->counter) + : [i] "+&r" (x0), [v] "+Q" (v->counter) : "r" (x1) : __LL_SC_CLOBBERS); } @@ -332,7 +332,7 @@ static inline long atomic64_fetch_and##name(long i, atomic64_t *v) \ /* LSE atomics */ \ " mvn %[i], %[i]\n" \ " ldclr" #mb " %[i], %[i], %[v]") \ - : [i] "+r" (x0), [v] "+Q" (v->counter) \ + : [i] "+&r" (x0), [v] "+Q" (v->counter) \ : "r" (x1) \ : __LL_SC_CLOBBERS, ##cl); \ \ @@ -358,7 +358,7 @@ static inline void atomic64_sub(long i, atomic64_t *v) /* LSE atomics */ " neg %[i], %[i]\n" " stadd %[i], %[v]") - : [i] "+r" (x0), [v] "+Q" (v->counter) + : [i] "+&r" (x0), [v] "+Q" (v->counter) : "r" (x1) : __LL_SC_CLOBBERS); } @@ -377,7 +377,7 @@ static inline long atomic64_sub_return##name(long i, atomic64_t *v) \ " neg %[i], %[i]\n" \ " ldadd" #mb " %[i], x30, %[v]\n" \ " add %[i], %[i], x30") \ - : [i] "+r" (x0), [v] "+Q" (v->counter) \ + : [i] "+&r" (x0), [v] "+Q" (v->counter) \ : "r" (x1) \ : __LL_SC_CLOBBERS, ##cl); \ \ @@ -404,7 +404,7 @@ static inline long atomic64_fetch_sub##name(long i, atomic64_t *v) \ /* LSE atomics */ \ " neg %[i], %[i]\n" \ " ldadd" #mb " %[i], %[i], %[v]") \ - : [i] "+r" (x0), [v] "+Q" (v->counter) \ + : [i] "+&r" (x0), [v] "+Q" (v->counter) \ : "r" (x1) \ : __LL_SC_CLOBBERS, ##cl); \ \ @@ -435,7 +435,7 @@ static inline long atomic64_dec_if_positive(atomic64_t *v) " sub x30, x30, %[ret]\n" " cbnz x30, 1b\n" "2:") - : [ret] "+r" (x0), [v] "+Q" (v->counter) + : [ret] "+&r" (x0), [v] "+Q" (v->counter) : : __LL_SC_CLOBBERS, "cc", "memory"); @@ -516,7 +516,7 @@ static inline long __cmpxchg_double##name(unsigned long old1, \ " eor %[old1], %[old1], %[oldval1]\n" \ " eor %[old2], %[old2], %[oldval2]\n" \ " orr %[old1], %[old1], %[old2]") \ - : [old1] "+r" (x0), [old2] "+r" (x1), \ + : [old1] "+&r" (x0), [old2] "+&r" (x1), \ [v] "+Q" (*(unsigned long *)ptr) \ : [new1] "r" (x2), [new2] "r" (x3), [ptr] "r" (x4), \ [oldval1] "r" (oldval1), [oldval2] "r" (oldval2) \ diff --git a/arch/arm64/kernel/arm64ksyms.c b/arch/arm64/kernel/arm64ksyms.c index 66be504edb6c..d894a20b70b2 100644 --- a/arch/arm64/kernel/arm64ksyms.c +++ b/arch/arm64/kernel/arm64ksyms.c @@ -75,3 +75,11 @@ NOKPROBE_SYMBOL(_mcount); /* arm-smccc */ EXPORT_SYMBOL(__arm_smccc_smc); EXPORT_SYMBOL(__arm_smccc_hvc); + + /* tishift.S */ +extern long long __ashlti3(long long a, int b); +EXPORT_SYMBOL(__ashlti3); +extern long long __ashrti3(long long a, int b); +EXPORT_SYMBOL(__ashrti3); +extern long long __lshrti3(long long a, int b); +EXPORT_SYMBOL(__lshrti3); diff --git a/arch/arm64/lib/tishift.S b/arch/arm64/lib/tishift.S index d3db9b2cd479..0fdff97794de 100644 --- a/arch/arm64/lib/tishift.S +++ b/arch/arm64/lib/tishift.S @@ -1,17 +1,6 @@ -/* - * Copyright (C) 2017 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. +/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) * - * 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. - * - * 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, see <http://www.gnu.org/licenses/>. + * Copyright (C) 2017-2018 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. */ #include <linux/linkage.h> diff --git a/arch/arm64/mm/fault.c b/arch/arm64/mm/fault.c index 4165485e8b6e..2af3dd89bcdb 100644 --- a/arch/arm64/mm/fault.c +++ b/arch/arm64/mm/fault.c @@ -293,6 +293,57 @@ static void __do_kernel_fault(unsigned long addr, unsigned int esr, static void __do_user_fault(struct siginfo *info, unsigned int esr) { current->thread.fault_address = (unsigned long)info->si_addr; + + /* + * If the faulting address is in the kernel, we must sanitize the ESR. + * From userspace's point of view, kernel-only mappings don't exist + * at all, so we report them as level 0 translation faults. + * (This is not quite the way that "no mapping there at all" behaves: + * an alignment fault not caused by the memory type would take + * precedence over translation fault for a real access to empty + * space. Unfortunately we can't easily distinguish "alignment fault + * not caused by memory type" from "alignment fault caused by memory + * type", so we ignore this wrinkle and just return the translation + * fault.) + */ + if (current->thread.fault_address >= TASK_SIZE) { + switch (ESR_ELx_EC(esr)) { + case ESR_ELx_EC_DABT_LOW: + /* + * These bits provide only information about the + * faulting instruction, which userspace knows already. + * We explicitly clear bits which are architecturally + * RES0 in case they are given meanings in future. + * We always report the ESR as if the fault was taken + * to EL1 and so ISV and the bits in ISS[23:14] are + * clear. (In fact it always will be a fault to EL1.) + */ + esr &= ESR_ELx_EC_MASK | ESR_ELx_IL | + ESR_ELx_CM | ESR_ELx_WNR; + esr |= ESR_ELx_FSC_FAULT; + break; + case ESR_ELx_EC_IABT_LOW: + /* + * Claim a level 0 translation fault. + * All other bits are architecturally RES0 for faults + * reported with that DFSC value, so we clear them. + */ + esr &= ESR_ELx_EC_MASK | ESR_ELx_IL; + esr |= ESR_ELx_FSC_FAULT; + break; + default: + /* + * This should never happen (entry.S only brings us + * into this code for insn and data aborts from a lower + * exception level). Fail safe by not providing an ESR + * context record at all. + */ + WARN(1, "ESR 0x%x is not DABT or IABT from EL0\n", esr); + esr = 0; + break; + } + } + current->thread.fault_code = esr; arm64_force_sig_info(info, esr_to_fault_info(esr)->name, current); } diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 2dbb2c9f1ec1..493ff75670ff 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -933,13 +933,15 @@ int pud_set_huge(pud_t *pudp, phys_addr_t phys, pgprot_t prot) { pgprot_t sect_prot = __pgprot(PUD_TYPE_SECT | pgprot_val(mk_sect_prot(prot))); + pud_t new_pud = pfn_pud(__phys_to_pfn(phys), sect_prot); - /* ioremap_page_range doesn't honour BBM */ - if (pud_present(READ_ONCE(*pudp))) + /* Only allow permission changes for now */ + if (!pgattr_change_is_safe(READ_ONCE(pud_val(*pudp)), + pud_val(new_pud))) return 0; BUG_ON(phys & ~PUD_MASK); - set_pud(pudp, pfn_pud(__phys_to_pfn(phys), sect_prot)); + set_pud(pudp, new_pud); return 1; } @@ -947,13 +949,15 @@ int pmd_set_huge(pmd_t *pmdp, phys_addr_t phys, pgprot_t prot) { pgprot_t sect_prot = __pgprot(PMD_TYPE_SECT | pgprot_val(mk_sect_prot(prot))); + pmd_t new_pmd = pfn_pmd(__phys_to_pfn(phys), sect_prot); - /* ioremap_page_range doesn't honour BBM */ - if (pmd_present(READ_ONCE(*pmdp))) + /* Only allow permission changes for now */ + if (!pgattr_change_is_safe(READ_ONCE(pmd_val(*pmdp)), + pmd_val(new_pmd))) return 0; BUG_ON(phys & ~PMD_MASK); - set_pmd(pmdp, pfn_pmd(__phys_to_pfn(phys), sect_prot)); + set_pmd(pmdp, new_pmd); return 1; } diff --git a/arch/nds32/Kconfig b/arch/nds32/Kconfig index 249f38d3388f..b7404f2dcf5b 100644 --- a/arch/nds32/Kconfig +++ b/arch/nds32/Kconfig @@ -9,6 +9,12 @@ config NDS32 select CLKSRC_MMIO select CLONE_BACKWARDS select COMMON_CLK + select GENERIC_ASHLDI3 + select GENERIC_ASHRDI3 + select GENERIC_LSHRDI3 + select GENERIC_CMPDI2 + select GENERIC_MULDI3 + select GENERIC_UCMPDI2 select GENERIC_ATOMIC64 select GENERIC_CPU_DEVICES select GENERIC_CLOCKEVENTS @@ -82,6 +88,7 @@ endmenu menu "Kernel Features" source "kernel/Kconfig.preempt" +source "kernel/Kconfig.freezer" source "mm/Kconfig" source "kernel/Kconfig.hz" endmenu diff --git a/arch/nds32/Kconfig.cpu b/arch/nds32/Kconfig.cpu index ba44cc539da9..b8c8984d1456 100644 --- a/arch/nds32/Kconfig.cpu +++ b/arch/nds32/Kconfig.cpu @@ -1,10 +1,11 @@ comment "Processor Features" config CPU_BIG_ENDIAN - bool "Big endian" + def_bool !CPU_LITTLE_ENDIAN config CPU_LITTLE_ENDIAN - def_bool !CPU_BIG_ENDIAN + bool "Little endian" + default y config HWZOL bool "hardware zero overhead loop support" diff --git a/arch/nds32/Makefile b/arch/nds32/Makefile index 91f933d5a962..513bb2e9baf9 100644 --- a/arch/nds32/Makefile +++ b/arch/nds32/Makefile @@ -23,9 +23,6 @@ export TEXTADDR # If we have a machine-specific directory, then include it in the build. core-y += arch/nds32/kernel/ arch/nds32/mm/ libs-y += arch/nds32/lib/ -LIBGCC_PATH := \ - $(shell $(CC) $(KBUILD_CFLAGS) $(KCFLAGS) -print-libgcc-file-name) -libs-y += $(LIBGCC_PATH) ifneq '$(CONFIG_NDS32_BUILTIN_DTB)' '""' BUILTIN_DTB := y @@ -35,8 +32,12 @@ endif ifdef CONFIG_CPU_LITTLE_ENDIAN KBUILD_CFLAGS += $(call cc-option, -EL) +KBUILD_AFLAGS += $(call cc-option, -EL) +LDFLAGS += $(call cc-option, -EL) else KBUILD_CFLAGS += $(call cc-option, -EB) +KBUILD_AFLAGS += $(call cc-option, -EB) +LDFLAGS += $(call cc-option, -EB) endif boot := arch/nds32/boot diff --git a/arch/nds32/include/asm/Kbuild b/arch/nds32/include/asm/Kbuild index 06bdf8167f5a..142e612aa639 100644 --- a/arch/nds32/include/asm/Kbuild +++ b/arch/nds32/include/asm/Kbuild @@ -16,6 +16,7 @@ generic-y += dma.h generic-y += emergency-restart.h generic-y += errno.h generic-y += exec.h +generic-y += export.h generic-y += fb.h generic-y += fcntl.h generic-y += ftrace.h @@ -49,6 +50,7 @@ generic-y += switch_to.h generic-y += timex.h generic-y += topology.h generic-y += trace_clock.h +generic-y += xor.h generic-y += unaligned.h generic-y += user.h generic-y += vga.h diff --git a/arch/nds32/include/asm/bitfield.h b/arch/nds32/include/asm/bitfield.h index c73f71d67744..8e84fc385b94 100644 --- a/arch/nds32/include/asm/bitfield.h +++ b/arch/nds32/include/asm/bitfield.h @@ -336,7 +336,7 @@ #define INT_MASK_mskIDIVZE ( 0x1 << INT_MASK_offIDIVZE ) #define INT_MASK_mskDSSIM ( 0x1 << INT_MASK_offDSSIM ) -#define INT_MASK_INITAIAL_VAL 0x10003 +#define INT_MASK_INITAIAL_VAL (INT_MASK_mskDSSIM|INT_MASK_mskIDIVZE) /****************************************************************************** * ir15: INT_PEND (Interrupt Pending Register) @@ -396,6 +396,7 @@ #define MMU_CTL_D8KB 1 #define MMU_CTL_UNA ( 0x1 << MMU_CTL_offUNA ) +#define MMU_CTL_CACHEABLE_NON 0 #define MMU_CTL_CACHEABLE_WB 2 #define MMU_CTL_CACHEABLE_WT 3 diff --git a/arch/nds32/include/asm/cacheflush.h b/arch/nds32/include/asm/cacheflush.h index 1240f148ec0f..10b48f0d8e85 100644 --- a/arch/nds32/include/asm/cacheflush.h +++ b/arch/nds32/include/asm/cacheflush.h @@ -32,6 +32,8 @@ void flush_anon_page(struct vm_area_struct *vma, #define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE void flush_kernel_dcache_page(struct page *page); +void flush_kernel_vmap_range(void *addr, int size); +void invalidate_kernel_vmap_range(void *addr, int size); void flush_icache_range(unsigned long start, unsigned long end); void flush_icache_page(struct vm_area_struct *vma, struct page *page); #define flush_dcache_mmap_lock(mapping) xa_lock_irq(&(mapping)->i_pages) diff --git a/arch/nds32/include/asm/io.h b/arch/nds32/include/asm/io.h index 966e71b3c960..71cd226d6863 100644 --- a/arch/nds32/include/asm/io.h +++ b/arch/nds32/include/asm/io.h @@ -4,6 +4,8 @@ #ifndef __ASM_NDS32_IO_H #define __ASM_NDS32_IO_H +#include <linux/types.h> + extern void iounmap(volatile void __iomem *addr); #define __raw_writeb __raw_writeb static inline void __raw_writeb(u8 val, volatile void __iomem *addr) diff --git a/arch/nds32/include/asm/page.h b/arch/nds32/include/asm/page.h index e27365c097b6..947f0491c9a7 100644 --- a/arch/nds32/include/asm/page.h +++ b/arch/nds32/include/asm/page.h @@ -27,6 +27,9 @@ extern void copy_user_highpage(struct page *to, struct page *from, unsigned long vaddr, struct vm_area_struct *vma); extern void clear_user_highpage(struct page *page, unsigned long vaddr); +void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, + struct page *to); +void clear_user_page(void *addr, unsigned long vaddr, struct page *page); #define __HAVE_ARCH_COPY_USER_HIGHPAGE #define clear_user_highpage clear_user_highpage #else diff --git a/arch/nds32/include/asm/pgtable.h b/arch/nds32/include/asm/pgtable.h index 6783937edbeb..d3e19a55cf53 100644 --- a/arch/nds32/include/asm/pgtable.h +++ b/arch/nds32/include/asm/pgtable.h @@ -152,6 +152,7 @@ extern void __pgd_error(const char *file, int line, unsigned long val); #define PAGE_CACHE_L1 __pgprot(_HAVE_PAGE_L | _PAGE_V | _PAGE_M_KRW | _PAGE_D | _PAGE_E | _PAGE_G | _PAGE_CACHE) #define PAGE_MEMORY __pgprot(_HAVE_PAGE_L | _PAGE_V | _PAGE_M_KRW | _PAGE_D | _PAGE_E | _PAGE_G | _PAGE_CACHE_SHRD) #define PAGE_KERNEL __pgprot(_PAGE_V | _PAGE_M_KRW | _PAGE_D | _PAGE_E | _PAGE_G | _PAGE_CACHE_SHRD) +#define PAGE_SHARED __pgprot(_PAGE_V | _PAGE_M_URW_KRW | _PAGE_D | _PAGE_CACHE_SHRD) #define PAGE_DEVICE __pgprot(_PAGE_V | _PAGE_M_KRW | _PAGE_D | _PAGE_G | _PAGE_C_DEV) #endif /* __ASSEMBLY__ */ diff --git a/arch/nds32/kernel/ex-entry.S b/arch/nds32/kernel/ex-entry.S index a72e83d804f5..b8ae4e9a6b93 100644 --- a/arch/nds32/kernel/ex-entry.S +++ b/arch/nds32/kernel/ex-entry.S @@ -118,7 +118,7 @@ common_exception_handler: /* interrupt */ 2: #ifdef CONFIG_TRACE_IRQFLAGS - jal arch_trace_hardirqs_off + jal trace_hardirqs_off #endif move $r0, $sp sethi $lp, hi20(ret_from_intr) diff --git a/arch/nds32/kernel/head.S b/arch/nds32/kernel/head.S index 71f57bd70f3b..c5fdae174ced 100644 --- a/arch/nds32/kernel/head.S +++ b/arch/nds32/kernel/head.S @@ -57,14 +57,32 @@ _nodtb: isb mtsr $r4, $L1_PPTB ! load page table pointer\n" -/* set NTC0 cacheable/writeback, mutliple page size in use */ +#ifdef CONFIG_CPU_DCACHE_DISABLE + #define MMU_CTL_NTCC MMU_CTL_CACHEABLE_NON +#else + #ifdef CONFIG_CPU_DCACHE_WRITETHROUGH + #define MMU_CTL_NTCC MMU_CTL_CACHEABLE_WT + #else + #define MMU_CTL_NTCC MMU_CTL_CACHEABLE_WB + #endif +#endif + +/* set NTC cacheability, mutliple page size in use */ mfsr $r3, $MMU_CTL - li $r0, #~MMU_CTL_mskNTC0 - and $r3, $r3, $r0 +#if CONFIG_MEMORY_START >= 0xc0000000 + ori $r3, $r3, (MMU_CTL_NTCC << MMU_CTL_offNTC3) +#elif CONFIG_MEMORY_START >= 0x80000000 + ori $r3, $r3, (MMU_CTL_NTCC << MMU_CTL_offNTC2) +#elif CONFIG_MEMORY_START >= 0x40000000 + ori $r3, $r3, (MMU_CTL_NTCC << MMU_CTL_offNTC1) +#else + ori $r3, $r3, (MMU_CTL_NTCC << MMU_CTL_offNTC0) +#endif + #ifdef CONFIG_ANDES_PAGE_SIZE_4KB - ori $r3, $r3, #(MMU_CTL_mskMPZIU|(MMU_CTL_CACHEABLE_WB << MMU_CTL_offNTC0)) + ori $r3, $r3, #(MMU_CTL_mskMPZIU) #else - ori $r3, $r3, #(MMU_CTL_mskMPZIU|(MMU_CTL_CACHEABLE_WB << MMU_CTL_offNTC0)|MMU_CTL_D8KB) + ori $r3, $r3, #(MMU_CTL_mskMPZIU|MMU_CTL_D8KB) #endif #ifdef CONFIG_HW_SUPPORT_UNALIGNMENT_ACCESS li $r0, #MMU_CTL_UNA diff --git a/arch/nds32/kernel/setup.c b/arch/nds32/kernel/setup.c index ba910e9e4ecb..2f5b2ccebe47 100644 --- a/arch/nds32/kernel/setup.c +++ b/arch/nds32/kernel/setup.c @@ -293,6 +293,9 @@ void __init setup_arch(char **cmdline_p) /* paging_init() sets up the MMU and marks all pages as reserved */ paging_init(); + /* invalidate all TLB entries because the new mapping is created */ + __nds32__tlbop_flua(); + /* use generic way to parse */ parse_early_param(); diff --git a/arch/nds32/kernel/stacktrace.c b/arch/nds32/kernel/stacktrace.c index bc70113c0e84..8b231e910ea6 100644 --- a/arch/nds32/kernel/stacktrace.c +++ b/arch/nds32/kernel/stacktrace.c @@ -9,6 +9,7 @@ void save_stack_trace(struct stack_trace *trace) { save_stack_trace_tsk(current, trace); } +EXPORT_SYMBOL_GPL(save_stack_trace); void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) { @@ -45,3 +46,4 @@ void save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace) fpn = (unsigned long *)fpp; } } +EXPORT_SYMBOL_GPL(save_stack_trace_tsk); diff --git a/arch/nds32/kernel/vdso.c b/arch/nds32/kernel/vdso.c index f1198d7a5654..016f15891f6d 100644 --- a/arch/nds32/kernel/vdso.c +++ b/arch/nds32/kernel/vdso.c @@ -23,7 +23,7 @@ #include <asm/vdso_timer_info.h> #include <asm/cache_info.h> extern struct cache_info L1_cache_info[2]; -extern char vdso_start, vdso_end; +extern char vdso_start[], vdso_end[]; static unsigned long vdso_pages __ro_after_init; static unsigned long timer_mapping_base; @@ -66,16 +66,16 @@ static int __init vdso_init(void) int i; struct page **vdso_pagelist; - if (memcmp(&vdso_start, "\177ELF", 4)) { + if (memcmp(vdso_start, "\177ELF", 4)) { pr_err("vDSO is not a valid ELF object!\n"); return -EINVAL; } /* Creat a timer io mapping to get clock cycles counter */ get_timer_node_info(); - vdso_pages = (&vdso_end - &vdso_start) >> PAGE_SHIFT; + vdso_pages = (vdso_end - vdso_start) >> PAGE_SHIFT; pr_info("vdso: %ld pages (%ld code @ %p, %ld data @ %p)\n", - vdso_pages + 1, vdso_pages, &vdso_start, 1L, vdso_data); + vdso_pages + 1, vdso_pages, vdso_start, 1L, vdso_data); /* Allocate the vDSO pagelist */ vdso_pagelist = kcalloc(vdso_pages, sizeof(struct page *), GFP_KERNEL); @@ -83,7 +83,7 @@ static int __init vdso_init(void) return -ENOMEM; for (i = 0; i < vdso_pages; i++) - vdso_pagelist[i] = virt_to_page(&vdso_start + i * PAGE_SIZE); + vdso_pagelist[i] = virt_to_page(vdso_start + i * PAGE_SIZE); vdso_spec[1].pages = &vdso_pagelist[0]; return 0; diff --git a/arch/nds32/lib/copy_page.S b/arch/nds32/lib/copy_page.S index 4a2ff85f17ee..f8701ed161a8 100644 --- a/arch/nds32/lib/copy_page.S +++ b/arch/nds32/lib/copy_page.S @@ -2,6 +2,7 @@ // Copyright (C) 2005-2017 Andes Technology Corporation #include <linux/linkage.h> +#include <asm/export.h> #include <asm/page.h> .text @@ -16,6 +17,7 @@ ENTRY(copy_page) popm $r2, $r10 ret ENDPROC(copy_page) +EXPORT_SYMBOL(copy_page) ENTRY(clear_page) pushm $r1, $r9 @@ -35,3 +37,4 @@ ENTRY(clear_page) popm $r1, $r9 ret ENDPROC(clear_page) +EXPORT_SYMBOL(clear_page) diff --git a/arch/nds32/mm/alignment.c b/arch/nds32/mm/alignment.c index b96a01b10ca7..e1aed9dc692d 100644 --- a/arch/nds32/mm/alignment.c +++ b/arch/nds32/mm/alignment.c @@ -19,7 +19,7 @@ #define RA(inst) (((inst) >> 15) & 0x1FUL) #define RB(inst) (((inst) >> 10) & 0x1FUL) #define SV(inst) (((inst) >> 8) & 0x3UL) -#define IMM(inst) (((inst) >> 0) & 0x3FFFUL) +#define IMM(inst) (((inst) >> 0) & 0x7FFFUL) #define RA3(inst) (((inst) >> 3) & 0x7UL) #define RT3(inst) (((inst) >> 6) & 0x7UL) @@ -28,6 +28,9 @@ #define RA5(inst) (((inst) >> 0) & 0x1FUL) #define RT4(inst) (((inst) >> 5) & 0xFUL) +#define GET_IMMSVAL(imm_value) \ + (((imm_value >> 14) & 0x1) ? (imm_value - 0x8000) : imm_value) + #define __get8_data(val,addr,err) \ __asm__( \ "1: lbi.bi %1, [%2], #1\n" \ @@ -467,7 +470,7 @@ static inline int do_32(unsigned long inst, struct pt_regs *regs) } if (imm) - shift = IMM(inst) * len; + shift = GET_IMMSVAL(IMM(inst)) * len; else shift = *idx_to_addr(regs, RB(inst)) << SV(inst); @@ -552,7 +555,7 @@ static struct ctl_table alignment_tbl[3] = { static struct ctl_table nds32_sysctl_table[2] = { { - .procname = "unaligned_acess", + .procname = "unaligned_access", .mode = 0555, .child = alignment_tbl}, {} diff --git a/arch/nds32/mm/cacheflush.c b/arch/nds32/mm/cacheflush.c index 6eb786a399a2..ce8fd34497bf 100644 --- a/arch/nds32/mm/cacheflush.c +++ b/arch/nds32/mm/cacheflush.c @@ -147,6 +147,25 @@ void flush_cache_vunmap(unsigned long start, unsigned long end) cpu_icache_inval_all(); } +void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, + struct page *to) +{ + cpu_dcache_wbinval_page((unsigned long)vaddr); + cpu_icache_inval_page((unsigned long)vaddr); + copy_page(vto, vfrom); + cpu_dcache_wbinval_page((unsigned long)vto); + cpu_icache_inval_page((unsigned long)vto); +} + +void clear_user_page(void *addr, unsigned long vaddr, struct page *page) +{ + cpu_dcache_wbinval_page((unsigned long)vaddr); + cpu_icache_inval_page((unsigned long)vaddr); + clear_page(addr); + cpu_dcache_wbinval_page((unsigned long)addr); + cpu_icache_inval_page((unsigned long)addr); +} + void copy_user_highpage(struct page *to, struct page *from, unsigned long vaddr, struct vm_area_struct *vma) { @@ -156,11 +175,9 @@ void copy_user_highpage(struct page *to, struct page *from, pto = page_to_phys(to); pfrom = page_to_phys(from); + local_irq_save(flags); if (aliasing(vaddr, (unsigned long)kfrom)) cpu_dcache_wb_page((unsigned long)kfrom); - if (aliasing(vaddr, (unsigned long)kto)) - cpu_dcache_inval_page((unsigned long)kto); - local_irq_save(flags); vto = kremap0(vaddr, pto); vfrom = kremap1(vaddr, pfrom); copy_page((void *)vto, (void *)vfrom); @@ -198,21 +215,25 @@ void flush_dcache_page(struct page *page) if (mapping && !mapping_mapped(mapping)) set_bit(PG_dcache_dirty, &page->flags); else { - int i, pc; - unsigned long vto, kaddr, flags; + unsigned long kaddr, flags; + kaddr = (unsigned long)page_address(page); - cpu_dcache_wbinval_page(kaddr); - pc = CACHE_SET(DCACHE) * CACHE_LINE_SIZE(DCACHE) / PAGE_SIZE; local_irq_save(flags); - for (i = 0; i < pc; i++) { - vto = - kremap0(kaddr + i * PAGE_SIZE, page_to_phys(page)); - cpu_dcache_wbinval_page(vto); - kunmap01(vto); + cpu_dcache_wbinval_page(kaddr); + if (mapping) { + unsigned long vaddr, kto; + + vaddr = page->index << PAGE_SHIFT; + if (aliasing(vaddr, kaddr)) { + kto = kremap0(vaddr, page_to_phys(page)); + cpu_dcache_wbinval_page(kto); + kunmap01(kto); + } } local_irq_restore(flags); } } +EXPORT_SYMBOL(flush_dcache_page); void copy_to_user_page(struct vm_area_struct *vma, struct page *page, unsigned long vaddr, void *dst, void *src, int len) @@ -251,7 +272,7 @@ void copy_from_user_page(struct vm_area_struct *vma, struct page *page, void flush_anon_page(struct vm_area_struct *vma, struct page *page, unsigned long vaddr) { - unsigned long flags; + unsigned long kaddr, flags, ktmp; if (!PageAnon(page)) return; @@ -261,7 +282,12 @@ void flush_anon_page(struct vm_area_struct *vma, local_irq_save(flags); if (vma->vm_flags & VM_EXEC) cpu_icache_inval_page(vaddr & PAGE_MASK); - cpu_dcache_wbinval_page((unsigned long)page_address(page)); + kaddr = (unsigned long)page_address(page); + if (aliasing(vaddr, kaddr)) { + ktmp = kremap0(vaddr, page_to_phys(page)); + cpu_dcache_wbinval_page(ktmp); + kunmap01(ktmp); + } local_irq_restore(flags); } @@ -272,6 +298,25 @@ void flush_kernel_dcache_page(struct page *page) cpu_dcache_wbinval_page((unsigned long)page_address(page)); local_irq_restore(flags); } +EXPORT_SYMBOL(flush_kernel_dcache_page); + +void flush_kernel_vmap_range(void *addr, int size) +{ + unsigned long flags; + local_irq_save(flags); + cpu_dcache_wb_range((unsigned long)addr, (unsigned long)addr + size); + local_irq_restore(flags); +} +EXPORT_SYMBOL(flush_kernel_vmap_range); + +void invalidate_kernel_vmap_range(void *addr, int size) +{ + unsigned long flags; + local_irq_save(flags); + cpu_dcache_inval_range((unsigned long)addr, (unsigned long)addr + size); + local_irq_restore(flags); +} +EXPORT_SYMBOL(invalidate_kernel_vmap_range); void flush_icache_range(unsigned long start, unsigned long end) { @@ -283,6 +328,7 @@ void flush_icache_range(unsigned long start, unsigned long end) cpu_cache_wbinval_range(start, end, 1); local_irq_restore(flags); } +EXPORT_SYMBOL(flush_icache_range); void flush_icache_page(struct vm_area_struct *vma, struct page *page) { diff --git a/arch/nds32/mm/init.c b/arch/nds32/mm/init.c index 93ee0160720b..c713d2ad55dc 100644 --- a/arch/nds32/mm/init.c +++ b/arch/nds32/mm/init.c @@ -30,6 +30,7 @@ extern unsigned long phys_initrd_size; * zero-initialized data and COW. */ struct page *empty_zero_page; +EXPORT_SYMBOL(empty_zero_page); static void __init zone_sizes_init(void) { diff --git a/arch/powerpc/include/asm/kvm_book3s.h b/arch/powerpc/include/asm/kvm_book3s.h index 4c02a7378d06..e7377b73cfec 100644 --- a/arch/powerpc/include/asm/kvm_book3s.h +++ b/arch/powerpc/include/asm/kvm_book3s.h @@ -96,6 +96,7 @@ struct kvmppc_vcore { struct kvm_vcpu *runner; struct kvm *kvm; u64 tb_offset; /* guest timebase - host timebase */ + u64 tb_offset_applied; /* timebase offset currently in force */ ulong lpcr; u32 arch_compat; ulong pcr; diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c index 6bee65f3cfd3..373dc1d6ef44 100644 --- a/arch/powerpc/kernel/asm-offsets.c +++ b/arch/powerpc/kernel/asm-offsets.c @@ -562,6 +562,7 @@ int main(void) OFFSET(VCORE_NAPPING_THREADS, kvmppc_vcore, napping_threads); OFFSET(VCORE_KVM, kvmppc_vcore, kvm); OFFSET(VCORE_TB_OFFSET, kvmppc_vcore, tb_offset); + OFFSET(VCORE_TB_OFFSET_APPL, kvmppc_vcore, tb_offset_applied); OFFSET(VCORE_LPCR, kvmppc_vcore, lpcr); OFFSET(VCORE_PCR, kvmppc_vcore, pcr); OFFSET(VCORE_DPDES, kvmppc_vcore, dpdes); diff --git a/arch/powerpc/kernel/cpu_setup_power.S b/arch/powerpc/kernel/cpu_setup_power.S index 3f30c994e931..458b928dbd84 100644 --- a/arch/powerpc/kernel/cpu_setup_power.S +++ b/arch/powerpc/kernel/cpu_setup_power.S @@ -28,6 +28,7 @@ _GLOBAL(__setup_cpu_power7) beqlr li r0,0 mtspr SPRN_LPID,r0 + mtspr SPRN_PCR,r0 mfspr r3,SPRN_LPCR li r4,(LPCR_LPES1 >> LPCR_LPES_SH) bl __init_LPCR_ISA206 @@ -41,6 +42,7 @@ _GLOBAL(__restore_cpu_power7) beqlr li r0,0 mtspr SPRN_LPID,r0 + mtspr SPRN_PCR,r0 mfspr r3,SPRN_LPCR li r4,(LPCR_LPES1 >> LPCR_LPES_SH) bl __init_LPCR_ISA206 @@ -57,6 +59,7 @@ _GLOBAL(__setup_cpu_power8) beqlr li r0,0 mtspr SPRN_LPID,r0 + mtspr SPRN_PCR,r0 mfspr r3,SPRN_LPCR ori r3, r3, LPCR_PECEDH li r4,0 /* LPES = 0 */ @@ -78,6 +81,7 @@ _GLOBAL(__restore_cpu_power8) beqlr li r0,0 mtspr SPRN_LPID,r0 + mtspr SPRN_PCR,r0 mfspr r3,SPRN_LPCR ori r3, r3, LPCR_PECEDH li r4,0 /* LPES = 0 */ @@ -99,6 +103,7 @@ _GLOBAL(__setup_cpu_power9) mtspr SPRN_PSSCR,r0 mtspr SPRN_LPID,r0 mtspr SPRN_PID,r0 + mtspr SPRN_PCR,r0 mfspr r3,SPRN_LPCR LOAD_REG_IMMEDIATE(r4, LPCR_PECEDH | LPCR_PECE_HVEE | LPCR_HVICE | LPCR_HEIC) or r3, r3, r4 @@ -123,6 +128,7 @@ _GLOBAL(__restore_cpu_power9) mtspr SPRN_PSSCR,r0 mtspr SPRN_LPID,r0 mtspr SPRN_PID,r0 + mtspr SPRN_PCR,r0 mfspr r3,SPRN_LPCR LOAD_REG_IMMEDIATE(r4, LPCR_PECEDH | LPCR_PECE_HVEE | LPCR_HVICE | LPCR_HEIC) or r3, r3, r4 diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c index 8ab51f6ca03a..c904477abaf3 100644 --- a/arch/powerpc/kernel/dt_cpu_ftrs.c +++ b/arch/powerpc/kernel/dt_cpu_ftrs.c @@ -101,6 +101,7 @@ static void __restore_cpu_cpufeatures(void) if (hv_mode) { mtspr(SPRN_LPID, 0); mtspr(SPRN_HFSCR, system_registers.hfscr); + mtspr(SPRN_PCR, 0); } mtspr(SPRN_FSCR, system_registers.fscr); diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index a57eafec4dc2..361f42c8c73e 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -162,7 +162,7 @@ static void kvmppc_radix_tlbie_page(struct kvm *kvm, unsigned long addr, if (cpu_has_feature(CPU_FTR_P9_TLBIE_BUG)) asm volatile(PPC_TLBIE_5(%0, %1, 0, 0, 1) : : "r" (addr), "r" (kvm->arch.lpid) : "memory"); - asm volatile("ptesync": : :"memory"); + asm volatile("eieio ; tlbsync ; ptesync": : :"memory"); } static void kvmppc_radix_flush_pwc(struct kvm *kvm, unsigned long addr) @@ -173,7 +173,7 @@ static void kvmppc_radix_flush_pwc(struct kvm *kvm, unsigned long addr) /* RIC=1 PRS=0 R=1 IS=2 */ asm volatile(PPC_TLBIE_5(%0, %1, 1, 0, 1) : : "r" (rb), "r" (kvm->arch.lpid) : "memory"); - asm volatile("ptesync": : :"memory"); + asm volatile("eieio ; tlbsync ; ptesync": : :"memory"); } unsigned long kvmppc_radix_update_pte(struct kvm *kvm, pte_t *ptep, @@ -584,7 +584,7 @@ int kvm_unmap_radix(struct kvm *kvm, struct kvm_memory_slot *memslot, ptep = __find_linux_pte(kvm->arch.pgtable, gpa, NULL, &shift); if (ptep && pte_present(*ptep)) { - old = kvmppc_radix_update_pte(kvm, ptep, _PAGE_PRESENT, 0, + old = kvmppc_radix_update_pte(kvm, ptep, ~0UL, 0, gpa, shift); kvmppc_radix_tlbie_page(kvm, gpa, shift); if ((old & _PAGE_DIRTY) && memslot->dirty_bitmap) { diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index 4d07fca5121c..9963f65c212b 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -2441,6 +2441,7 @@ static void init_vcore_to_run(struct kvmppc_vcore *vc) vc->in_guest = 0; vc->napping_threads = 0; vc->conferring_threads = 0; + vc->tb_offset_applied = 0; } static bool can_dynamic_split(struct kvmppc_vcore *vc, struct core_info *cip) diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index bd63fa8a08b5..07ca1b2a7966 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -692,6 +692,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) 22: ld r8,VCORE_TB_OFFSET(r5) cmpdi r8,0 beq 37f + std r8, VCORE_TB_OFFSET_APPL(r5) mftb r6 /* current host timebase */ add r8,r8,r6 mtspr SPRN_TBU40,r8 /* update upper 40 bits */ @@ -940,18 +941,6 @@ FTR_SECTION_ELSE ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_300) 8: - /* - * Set the decrementer to the guest decrementer. - */ - ld r8,VCPU_DEC_EXPIRES(r4) - /* r8 is a host timebase value here, convert to guest TB */ - ld r5,HSTATE_KVM_VCORE(r13) - ld r6,VCORE_TB_OFFSET(r5) - add r8,r8,r6 - mftb r7 - subf r3,r7,r8 - mtspr SPRN_DEC,r3 - ld r5, VCPU_SPRG0(r4) ld r6, VCPU_SPRG1(r4) ld r7, VCPU_SPRG2(r4) @@ -1005,6 +994,18 @@ ALT_FTR_SECTION_END_IFCLR(CPU_FTR_ARCH_300) mtspr SPRN_LPCR,r8 isync + /* + * Set the decrementer to the guest decrementer. + */ + ld r8,VCPU_DEC_EXPIRES(r4) + /* r8 is a host timebase value here, convert to guest TB */ + ld r5,HSTATE_KVM_VCORE(r13) + ld r6,VCORE_TB_OFFSET_APPL(r5) + add r8,r8,r6 + mftb r7 + subf r3,r7,r8 + mtspr SPRN_DEC,r3 + /* Check if HDEC expires soon */ mfspr r3, SPRN_HDEC EXTEND_HDEC(r3) @@ -1597,8 +1598,27 @@ END_MMU_FTR_SECTION_IFSET(MMU_FTR_TYPE_RADIX) guest_bypass: stw r12, STACK_SLOT_TRAP(r1) - mr r3, r12 + + /* Save DEC */ + /* Do this before kvmhv_commence_exit so we know TB is guest TB */ + ld r3, HSTATE_KVM_VCORE(r13) + mfspr r5,SPRN_DEC + mftb r6 + /* On P9, if the guest has large decr enabled, don't sign extend */ +BEGIN_FTR_SECTION + ld r4, VCORE_LPCR(r3) + andis. r4, r4, LPCR_LD@h + bne 16f +END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) + extsw r5,r5 +16: add r5,r5,r6 + /* r5 is a guest timebase value here, convert to host TB */ + ld r4,VCORE_TB_OFFSET_APPL(r3) + subf r5,r4,r5 + std r5,VCPU_DEC_EXPIRES(r9) + /* Increment exit count, poke other threads to exit */ + mr r3, r12 bl kvmhv_commence_exit nop ld r9, HSTATE_KVM_VCPU(r13) @@ -1639,23 +1659,6 @@ guest_bypass: mtspr SPRN_PURR,r3 mtspr SPRN_SPURR,r4 - /* Save DEC */ - ld r3, HSTATE_KVM_VCORE(r13) - mfspr r5,SPRN_DEC - mftb r6 - /* On P9, if the guest has large decr enabled, don't sign extend */ -BEGIN_FTR_SECTION - ld r4, VCORE_LPCR(r3) - andis. r4, r4, LPCR_LD@h - bne 16f -END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) - extsw r5,r5 -16: add r5,r5,r6 - /* r5 is a guest timebase value here, convert to host TB */ - ld r4,VCORE_TB_OFFSET(r3) - subf r5,r4,r5 - std r5,VCPU_DEC_EXPIRES(r9) - BEGIN_FTR_SECTION b 8f END_FTR_SECTION_IFCLR(CPU_FTR_ARCH_207S) @@ -1905,6 +1908,14 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) cmpwi cr2, r0, 0 beq cr2, 4f + /* + * Radix: do eieio; tlbsync; ptesync sequence in case we + * interrupted the guest between a tlbie and a ptesync. + */ + eieio + tlbsync + ptesync + /* Radix: Handle the case where the guest used an illegal PID */ LOAD_REG_ADDR(r4, mmu_base_pid) lwz r3, VCPU_GUEST_PID(r9) @@ -2017,9 +2028,11 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S) 27: /* Subtract timebase offset from timebase */ - ld r8,VCORE_TB_OFFSET(r5) + ld r8, VCORE_TB_OFFSET_APPL(r5) cmpdi r8,0 beq 17f + li r0, 0 + std r0, VCORE_TB_OFFSET_APPL(r5) mftb r6 /* current guest timebase */ subf r8,r8,r6 mtspr SPRN_TBU40,r8 /* update upper 40 bits */ @@ -2700,7 +2713,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_ARCH_300) add r3, r3, r5 ld r4, HSTATE_KVM_VCPU(r13) ld r5, HSTATE_KVM_VCORE(r13) - ld r6, VCORE_TB_OFFSET(r5) + ld r6, VCORE_TB_OFFSET_APPL(r5) subf r3, r6, r3 /* convert to host TB value */ std r3, VCPU_DEC_EXPIRES(r4) @@ -2799,7 +2812,7 @@ END_FTR_SECTION(CPU_FTR_TM | CPU_FTR_P9_TM_HV_ASSIST, 0) /* Restore guest decrementer */ ld r3, VCPU_DEC_EXPIRES(r4) ld r5, HSTATE_KVM_VCORE(r13) - ld r6, VCORE_TB_OFFSET(r5) + ld r6, VCORE_TB_OFFSET_APPL(r5) add r3, r3, r6 /* convert host TB to guest TB value */ mftb r7 subf r3, r7, r3 @@ -3606,12 +3619,9 @@ kvmppc_fix_pmao: */ kvmhv_start_timing: ld r5, HSTATE_KVM_VCORE(r13) - lbz r6, VCORE_IN_GUEST(r5) - cmpwi r6, 0 - beq 5f /* if in guest, need to */ - ld r6, VCORE_TB_OFFSET(r5) /* subtract timebase offset */ -5: mftb r5 - subf r5, r6, r5 + ld r6, VCORE_TB_OFFSET_APPL(r5) + mftb r5 + subf r5, r6, r5 /* subtract current timebase offset */ std r3, VCPU_CUR_ACTIVITY(r4) std r5, VCPU_ACTIVITY_START(r4) blr @@ -3622,15 +3632,12 @@ kvmhv_start_timing: */ kvmhv_accumulate_time: ld r5, HSTATE_KVM_VCORE(r13) - lbz r8, VCORE_IN_GUEST(r5) - cmpwi r8, 0 - beq 4f /* if in guest, need to */ - ld r8, VCORE_TB_OFFSET(r5) /* subtract timebase offset */ -4: ld r5, VCPU_CUR_ACTIVITY(r4) + ld r8, VCORE_TB_OFFSET_APPL(r5) + ld r5, VCPU_CUR_ACTIVITY(r4) ld r6, VCPU_ACTIVITY_START(r4) std r3, VCPU_CUR_ACTIVITY(r4) mftb r7 - subf r7, r8, r7 + subf r7, r8, r7 /* subtract current timebase offset */ std r7, VCPU_ACTIVITY_START(r4) cmpdi r5, 0 beqlr diff --git a/arch/powerpc/kvm/book3s_xive_template.c b/arch/powerpc/kvm/book3s_xive_template.c index c7a5deadd1cc..99c3620b40d9 100644 --- a/arch/powerpc/kvm/book3s_xive_template.c +++ b/arch/powerpc/kvm/book3s_xive_template.c @@ -11,6 +11,9 @@ #define XGLUE(a,b) a##b #define GLUE(a,b) XGLUE(a,b) +/* Dummy interrupt used when taking interrupts out of a queue in H_CPPR */ +#define XICS_DUMMY 1 + static void GLUE(X_PFX,ack_pending)(struct kvmppc_xive_vcpu *xc) { u8 cppr; @@ -205,6 +208,10 @@ skip_ipi: goto skip_ipi; } + /* If it's the dummy interrupt, continue searching */ + if (hirq == XICS_DUMMY) + goto skip_ipi; + /* If fetching, update queue pointers */ if (scan_type == scan_fetch) { q->idx = idx; @@ -385,9 +392,76 @@ static void GLUE(X_PFX,push_pending_to_hw)(struct kvmppc_xive_vcpu *xc) __x_writeb(prio, __x_tima + TM_SPC_SET_OS_PENDING); } +static void GLUE(X_PFX,scan_for_rerouted_irqs)(struct kvmppc_xive *xive, + struct kvmppc_xive_vcpu *xc) +{ + unsigned int prio; + + /* For each priority that is now masked */ + for (prio = xc->cppr; prio < KVMPPC_XIVE_Q_COUNT; prio++) { + struct xive_q *q = &xc->queues[prio]; + struct kvmppc_xive_irq_state *state; + struct kvmppc_xive_src_block *sb; + u32 idx, toggle, entry, irq, hw_num; + struct xive_irq_data *xd; + __be32 *qpage; + u16 src; + + idx = q->idx; + toggle = q->toggle; + qpage = READ_ONCE(q->qpage); + if (!qpage) + continue; + + /* For each interrupt in the queue */ + for (;;) { + entry = be32_to_cpup(qpage + idx); + + /* No more ? */ + if ((entry >> 31) == toggle) + break; + irq = entry & 0x7fffffff; + + /* Skip dummies and IPIs */ + if (irq == XICS_DUMMY || irq == XICS_IPI) + goto next; + sb = kvmppc_xive_find_source(xive, irq, &src); + if (!sb) + goto next; + state = &sb->irq_state[src]; + + /* Has it been rerouted ? */ + if (xc->server_num == state->act_server) + goto next; + + /* + * Allright, it *has* been re-routed, kill it from + * the queue. + */ + qpage[idx] = cpu_to_be32((entry & 0x80000000) | XICS_DUMMY); + + /* Find the HW interrupt */ + kvmppc_xive_select_irq(state, &hw_num, &xd); + + /* If it's not an LSI, set PQ to 11 the EOI will force a resend */ + if (!(xd->flags & XIVE_IRQ_FLAG_LSI)) + GLUE(X_PFX,esb_load)(xd, XIVE_ESB_SET_PQ_11); + + /* EOI the source */ + GLUE(X_PFX,source_eoi)(hw_num, xd); + + next: + idx = (idx + 1) & q->msk; + if (idx == 0) + toggle ^= 1; + } + } +} + X_STATIC int GLUE(X_PFX,h_cppr)(struct kvm_vcpu *vcpu, unsigned long cppr) { struct kvmppc_xive_vcpu *xc = vcpu->arch.xive_vcpu; + struct kvmppc_xive *xive = vcpu->kvm->arch.xive; u8 old_cppr; pr_devel("H_CPPR(cppr=%ld)\n", cppr); @@ -407,14 +481,34 @@ X_STATIC int GLUE(X_PFX,h_cppr)(struct kvm_vcpu *vcpu, unsigned long cppr) */ smp_mb(); - /* - * We are masking less, we need to look for pending things - * to deliver and set VP pending bits accordingly to trigger - * a new interrupt otherwise we might miss MFRR changes for - * which we have optimized out sending an IPI signal. - */ - if (cppr > old_cppr) + if (cppr > old_cppr) { + /* + * We are masking less, we need to look for pending things + * to deliver and set VP pending bits accordingly to trigger + * a new interrupt otherwise we might miss MFRR changes for + * which we have optimized out sending an IPI signal. + */ GLUE(X_PFX,push_pending_to_hw)(xc); + } else { + /* + * We are masking more, we need to check the queue for any + * interrupt that has been routed to another CPU, take + * it out (replace it with the dummy) and retrigger it. + * + * This is necessary since those interrupts may otherwise + * never be processed, at least not until this CPU restores + * its CPPR. + * + * This is in theory racy vs. HW adding new interrupts to + * the queue. In practice this works because the interesting + * cases are when the guest has done a set_xive() to move the + * interrupt away, which flushes the xive, followed by the + * target CPU doing a H_CPPR. So any new interrupt coming into + * the queue must still be routed to us and isn't a source + * of concern. + */ + GLUE(X_PFX,scan_for_rerouted_irqs)(xive, xc); + } /* Apply new CPPR */ xc->hw_cppr = cppr; diff --git a/arch/s390/kvm/vsie.c b/arch/s390/kvm/vsie.c index 8961e3970901..969882b54266 100644 --- a/arch/s390/kvm/vsie.c +++ b/arch/s390/kvm/vsie.c @@ -578,7 +578,7 @@ static int pin_blocks(struct kvm_vcpu *vcpu, struct vsie_page *vsie_page) gpa = READ_ONCE(scb_o->itdba) & ~0xffUL; if (gpa && (scb_s->ecb & ECB_TE)) { - if (!(gpa & ~0x1fffU)) { + if (!(gpa & ~0x1fffUL)) { rc = set_validity_icpt(scb_s, 0x0080U); goto unpin; } diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 78decc3e3067..38276f58d3bf 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -942,12 +942,8 @@ static const __initconst struct x86_cpu_id cpu_no_meltdown[] = { {} }; +/* Only list CPUs which speculate but are non susceptible to SSB */ static const __initconst struct x86_cpu_id cpu_no_spec_store_bypass[] = { - { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_PINEVIEW }, - { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_LINCROFT }, - { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_PENWELL }, - { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_CLOVERVIEW }, - { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_CEDARVIEW }, { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_SILVERMONT1 }, { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_AIRMONT }, { X86_VENDOR_INTEL, 6, INTEL_FAM6_ATOM_SILVERMONT2 }, @@ -955,14 +951,10 @@ static const __initconst struct x86_cpu_id cpu_no_spec_store_bypass[] = { { X86_VENDOR_INTEL, 6, INTEL_FAM6_CORE_YONAH }, { X86_VENDOR_INTEL, 6, INTEL_FAM6_XEON_PHI_KNL }, { X86_VENDOR_INTEL, 6, INTEL_FAM6_XEON_PHI_KNM }, - { X86_VENDOR_CENTAUR, 5, }, - { X86_VENDOR_INTEL, 5, }, - { X86_VENDOR_NSC, 5, }, { X86_VENDOR_AMD, 0x12, }, { X86_VENDOR_AMD, 0x11, }, { X86_VENDOR_AMD, 0x10, }, { X86_VENDOR_AMD, 0xf, }, - { X86_VENDOR_ANY, 4, }, {} }; @@ -970,6 +962,12 @@ static void __init cpu_set_bug_bits(struct cpuinfo_x86 *c) { u64 ia32_cap = 0; + if (x86_match_cpu(cpu_no_speculation)) + return; + + setup_force_cpu_bug(X86_BUG_SPECTRE_V1); + setup_force_cpu_bug(X86_BUG_SPECTRE_V2); + if (cpu_has(c, X86_FEATURE_ARCH_CAPABILITIES)) rdmsrl(MSR_IA32_ARCH_CAPABILITIES, ia32_cap); @@ -977,12 +975,6 @@ static void __init cpu_set_bug_bits(struct cpuinfo_x86 *c) !(ia32_cap & ARCH_CAP_SSB_NO)) setup_force_cpu_bug(X86_BUG_SPEC_STORE_BYPASS); - if (x86_match_cpu(cpu_no_speculation)) - return; - - setup_force_cpu_bug(X86_BUG_SPECTRE_V1); - setup_force_cpu_bug(X86_BUG_SPECTRE_V2); - if (x86_match_cpu(cpu_no_meltdown)) return; diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c index ced851169730..92bf2f2e7cdd 100644 --- a/arch/x86/kvm/cpuid.c +++ b/arch/x86/kvm/cpuid.c @@ -407,8 +407,8 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, /* cpuid 7.0.edx*/ const u32 kvm_cpuid_7_0_edx_x86_features = - F(AVX512_4VNNIW) | F(AVX512_4FMAPS) | F(SPEC_CTRL) | F(SSBD) | - F(ARCH_CAPABILITIES); + F(AVX512_4VNNIW) | F(AVX512_4FMAPS) | F(SPEC_CTRL) | + F(SPEC_CTRL_SSBD) | F(ARCH_CAPABILITIES); /* all calls to cpuid_count() should be made on the same cpu */ get_cpu(); @@ -495,6 +495,11 @@ static inline int __do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function, entry->ecx &= ~F(PKU); entry->edx &= kvm_cpuid_7_0_edx_x86_features; cpuid_mask(&entry->edx, CPUID_7_EDX); + /* + * We emulate ARCH_CAPABILITIES in software even + * if the host doesn't support it. + */ + entry->edx |= F(ARCH_CAPABILITIES); } else { entry->ebx = 0; entry->ecx = 0; diff --git a/arch/x86/kvm/hyperv.c b/arch/x86/kvm/hyperv.c index 5708e951a5c6..46ff64da44ca 100644 --- a/arch/x86/kvm/hyperv.c +++ b/arch/x86/kvm/hyperv.c @@ -1260,14 +1260,18 @@ static void kvm_hv_hypercall_set_result(struct kvm_vcpu *vcpu, u64 result) } } -static int kvm_hv_hypercall_complete_userspace(struct kvm_vcpu *vcpu) +static int kvm_hv_hypercall_complete(struct kvm_vcpu *vcpu, u64 result) { - struct kvm_run *run = vcpu->run; - - kvm_hv_hypercall_set_result(vcpu, run->hyperv.u.hcall.result); + kvm_hv_hypercall_set_result(vcpu, result); + ++vcpu->stat.hypercalls; return kvm_skip_emulated_instruction(vcpu); } +static int kvm_hv_hypercall_complete_userspace(struct kvm_vcpu *vcpu) +{ + return kvm_hv_hypercall_complete(vcpu, vcpu->run->hyperv.u.hcall.result); +} + static u16 kvm_hvcall_signal_event(struct kvm_vcpu *vcpu, bool fast, u64 param) { struct eventfd_ctx *eventfd; @@ -1350,7 +1354,7 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu) /* Hypercall continuation is not supported yet */ if (rep_cnt || rep_idx) { ret = HV_STATUS_INVALID_HYPERCALL_CODE; - goto set_result; + goto out; } switch (code) { @@ -1381,9 +1385,8 @@ int kvm_hv_hypercall(struct kvm_vcpu *vcpu) break; } -set_result: - kvm_hv_hypercall_set_result(vcpu, ret); - return 1; +out: + return kvm_hv_hypercall_complete(vcpu, ret); } void kvm_hv_init_vm(struct kvm *kvm) diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index b74c9c1405b9..3773c4625114 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -1522,11 +1522,23 @@ static bool set_target_expiration(struct kvm_lapic *apic) static void advance_periodic_target_expiration(struct kvm_lapic *apic) { - apic->lapic_timer.tscdeadline += - nsec_to_cycles(apic->vcpu, apic->lapic_timer.period); + ktime_t now = ktime_get(); + u64 tscl = rdtsc(); + ktime_t delta; + + /* + * Synchronize both deadlines to the same time source or + * differences in the periods (caused by differences in the + * underlying clocks or numerical approximation errors) will + * cause the two to drift apart over time as the errors + * accumulate. + */ apic->lapic_timer.target_expiration = ktime_add_ns(apic->lapic_timer.target_expiration, apic->lapic_timer.period); + delta = ktime_sub(apic->lapic_timer.target_expiration, now); + apic->lapic_timer.tscdeadline = kvm_read_l1_tsc(apic->vcpu, tscl) + + nsec_to_cycles(apic->vcpu, delta); } static void start_sw_period(struct kvm_lapic *apic) diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 22a183aac1c6..71e7cda6d014 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -6671,11 +6671,8 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu) unsigned long nr, a0, a1, a2, a3, ret; int op_64_bit; - if (kvm_hv_hypercall_enabled(vcpu->kvm)) { - if (!kvm_hv_hypercall(vcpu)) - return 0; - goto out; - } + if (kvm_hv_hypercall_enabled(vcpu->kvm)) + return kvm_hv_hypercall(vcpu); nr = kvm_register_read(vcpu, VCPU_REGS_RAX); a0 = kvm_register_read(vcpu, VCPU_REGS_RBX); @@ -6696,7 +6693,7 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu) if (kvm_x86_ops->get_cpl(vcpu) != 0) { ret = -KVM_EPERM; - goto out_error; + goto out; } switch (nr) { @@ -6716,12 +6713,11 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu) ret = -KVM_ENOSYS; break; } -out_error: +out: if (!op_64_bit) ret = (u32)ret; kvm_register_write(vcpu, VCPU_REGS_RAX, ret); -out: ++vcpu->stat.hypercalls; return kvm_skip_emulated_instruction(vcpu); } @@ -7980,6 +7976,7 @@ static int __set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) { struct msr_data apic_base_msr; int mmu_reset_needed = 0; + int cpuid_update_needed = 0; int pending_vec, max_bits, idx; struct desc_ptr dt; int ret = -EINVAL; @@ -8018,8 +8015,10 @@ static int __set_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs) vcpu->arch.cr0 = sregs->cr0; mmu_reset_needed |= kvm_read_cr4(vcpu) != sregs->cr4; + cpuid_update_needed |= ((kvm_read_cr4(vcpu) ^ sregs->cr4) & + (X86_CR4_OSXSAVE | X86_CR4_PKE)); kvm_x86_ops->set_cr4(vcpu, sregs->cr4); - if (sregs->cr4 & (X86_CR4_OSXSAVE | X86_CR4_PKE)) + if (cpuid_update_needed) kvm_update_cpuid(vcpu); idx = srcu_read_lock(&vcpu->kvm->srcu); diff --git a/drivers/base/node.c b/drivers/base/node.c index 7a3a580821e0..a5e821d09656 100644 --- a/drivers/base/node.c +++ b/drivers/base/node.c @@ -490,7 +490,8 @@ int unregister_mem_sect_under_nodes(struct memory_block *mem_blk, return 0; } -int link_mem_sections(int nid, unsigned long start_pfn, unsigned long nr_pages) +int link_mem_sections(int nid, unsigned long start_pfn, unsigned long nr_pages, + bool check_nid) { unsigned long end_pfn = start_pfn + nr_pages; unsigned long pfn; @@ -514,7 +515,7 @@ int link_mem_sections(int nid, unsigned long start_pfn, unsigned long nr_pages) mem_blk = find_memory_block_hinted(mem_sect, mem_blk); - ret = register_mem_sect_under_node(mem_blk, nid, true); + ret = register_mem_sect_under_node(mem_blk, nid, check_nid); if (!err) err = ret; diff --git a/drivers/bcma/driver_mips.c b/drivers/bcma/driver_mips.c index f040aba48d50..27e9686b6d3a 100644 --- a/drivers/bcma/driver_mips.c +++ b/drivers/bcma/driver_mips.c @@ -184,7 +184,7 @@ static void bcma_core_mips_print_irq(struct bcma_device *dev, unsigned int irq) { int i; static const char *irq_name[] = {"2(S)", "3", "4", "5", "6", "D", "I"}; - char interrupts[20]; + char interrupts[25]; char *ints = interrupts; for (i = 0; i < ARRAY_SIZE(irq_name); i++) diff --git a/drivers/firmware/qcom_scm-32.c b/drivers/firmware/qcom_scm-32.c index dfbd894d5bb7..4e24e591ae74 100644 --- a/drivers/firmware/qcom_scm-32.c +++ b/drivers/firmware/qcom_scm-32.c @@ -147,7 +147,7 @@ static u32 smc(u32 cmd_addr) "smc #0 @ switch to secure world\n" : "=r" (r0) : "r" (r0), "r" (r1), "r" (r2) - : "r3"); + : "r3", "r12"); } while (r0 == QCOM_SCM_INTERRUPTED); return r0; @@ -263,7 +263,7 @@ static s32 qcom_scm_call_atomic1(u32 svc, u32 cmd, u32 arg1) "smc #0 @ switch to secure world\n" : "=r" (r0) : "r" (r0), "r" (r1), "r" (r2) - : "r3"); + : "r3", "r12"); return r0; } @@ -298,7 +298,7 @@ static s32 qcom_scm_call_atomic2(u32 svc, u32 cmd, u32 arg1, u32 arg2) "smc #0 @ switch to secure world\n" : "=r" (r0) : "r" (r0), "r" (r1), "r" (r2), "r" (r3) - ); + : "r12"); return r0; } @@ -328,7 +328,7 @@ u32 qcom_scm_get_version(void) "smc #0 @ switch to secure world\n" : "=r" (r0), "=r" (r1) : "r" (r0), "r" (r1) - : "r2", "r3"); + : "r2", "r3", "r12"); } while (r0 == QCOM_SCM_INTERRUPTED); version = r1; diff --git a/drivers/gpu/drm/rcar-du/rcar_lvds.c b/drivers/gpu/drm/rcar-du/rcar_lvds.c index 3d2d3bbd1342..155ad840f3c5 100644 --- a/drivers/gpu/drm/rcar-du/rcar_lvds.c +++ b/drivers/gpu/drm/rcar-du/rcar_lvds.c @@ -88,6 +88,9 @@ static int rcar_lvds_connector_atomic_check(struct drm_connector *connector, const struct drm_display_mode *panel_mode; struct drm_crtc_state *crtc_state; + if (!state->crtc) + return 0; + if (list_empty(&connector->modes)) { dev_dbg(lvds->dev, "connector: empty modes list\n"); return -EINVAL; diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c index 70e1a8820a7c..8b770a8e02cd 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c @@ -1278,8 +1278,6 @@ static void vmw_master_drop(struct drm_device *dev, dev_priv->active_master = &dev_priv->fbdev_master; ttm_lock_set_kill(&dev_priv->fbdev_master.lock, false, SIGTERM); ttm_vt_unlock(&dev_priv->fbdev_master.lock); - - vmw_fb_refresh(dev_priv); } /** @@ -1483,7 +1481,6 @@ static int vmw_pm_freeze(struct device *kdev) vmw_kms_resume(dev); if (dev_priv->enable_fb) vmw_fb_on(dev_priv); - vmw_fb_refresh(dev_priv); return -EBUSY; } @@ -1523,8 +1520,6 @@ static int vmw_pm_restore(struct device *kdev) if (dev_priv->enable_fb) vmw_fb_on(dev_priv); - vmw_fb_refresh(dev_priv); - return 0; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h index f34f368c1a2e..5fcbe1620d50 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h @@ -910,7 +910,6 @@ int vmw_fb_init(struct vmw_private *vmw_priv); int vmw_fb_close(struct vmw_private *dev_priv); int vmw_fb_off(struct vmw_private *vmw_priv); int vmw_fb_on(struct vmw_private *vmw_priv); -void vmw_fb_refresh(struct vmw_private *vmw_priv); /** * Kernel modesetting - vmwgfx_kms.c diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c index ba0cdb743c3e..54e300365a5c 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_fb.c @@ -866,21 +866,13 @@ int vmw_fb_on(struct vmw_private *vmw_priv) spin_lock_irqsave(&par->dirty.lock, flags); par->dirty.active = true; spin_unlock_irqrestore(&par->dirty.lock, flags); - - return 0; -} -/** - * vmw_fb_refresh - Refresh fb display - * - * @vmw_priv: Pointer to device private - * - * Call into kms to show the fbdev display(s). - */ -void vmw_fb_refresh(struct vmw_private *vmw_priv) -{ - if (!vmw_priv->fb_info) - return; + /* + * Need to reschedule a dirty update, because otherwise that's + * only done in dirty_mark() if the previous coalesced + * dirty region was empty. + */ + schedule_delayed_work(&par->local_work, 0); - vmw_fb_set_par(vmw_priv->fb_info); + return 0; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c index cdff99211602..21d746bdc922 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.c @@ -329,8 +329,6 @@ int vmw_host_get_guestinfo(const char *guest_info_param, struct rpc_channel channel; char *msg, *reply = NULL; size_t reply_len = 0; - int ret = 0; - if (!vmw_msg_enabled) return -ENODEV; @@ -344,15 +342,14 @@ int vmw_host_get_guestinfo(const char *guest_info_param, return -ENOMEM; } - if (vmw_open_channel(&channel, RPCI_PROTOCOL_NUM) || - vmw_send_msg(&channel, msg) || - vmw_recv_msg(&channel, (void *) &reply, &reply_len) || - vmw_close_channel(&channel)) { - DRM_ERROR("Failed to get %s", guest_info_param); + if (vmw_open_channel(&channel, RPCI_PROTOCOL_NUM)) + goto out_open; - ret = -EINVAL; - } + if (vmw_send_msg(&channel, msg) || + vmw_recv_msg(&channel, (void *) &reply, &reply_len)) + goto out_msg; + vmw_close_channel(&channel); if (buffer && reply && reply_len > 0) { /* Remove reply code, which are the first 2 characters of * the reply @@ -369,7 +366,17 @@ int vmw_host_get_guestinfo(const char *guest_info_param, kfree(reply); kfree(msg); - return ret; + return 0; + +out_msg: + vmw_close_channel(&channel); + kfree(reply); +out_open: + *length = 0; + kfree(msg); + DRM_ERROR("Failed to get %s", guest_info_param); + + return -EINVAL; } @@ -400,15 +407,22 @@ int vmw_host_log(const char *log) return -ENOMEM; } - if (vmw_open_channel(&channel, RPCI_PROTOCOL_NUM) || - vmw_send_msg(&channel, msg) || - vmw_close_channel(&channel)) { - DRM_ERROR("Failed to send log\n"); + if (vmw_open_channel(&channel, RPCI_PROTOCOL_NUM)) + goto out_open; - ret = -EINVAL; - } + if (vmw_send_msg(&channel, msg)) + goto out_msg; + vmw_close_channel(&channel); kfree(msg); - return ret; + return 0; + +out_msg: + vmw_close_channel(&channel); +out_open: + kfree(msg); + DRM_ERROR("Failed to send log\n"); + + return -EINVAL; } diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.h b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.h index 557a033fb610..8545488aa0cf 100644 --- a/drivers/gpu/drm/vmwgfx/vmwgfx_msg.h +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_msg.h @@ -135,17 +135,24 @@ #else -/* In the 32-bit version of this macro, we use "m" because there is no - * more register left for bp +/* + * In the 32-bit version of this macro, we store bp in a memory location + * because we've ran out of registers. + * Now we can't reference that memory location while we've modified + * %esp or %ebp, so we first push it on the stack, just before we push + * %ebp, and then when we need it we read it from the stack where we + * just pushed it. */ #define VMW_PORT_HB_OUT(cmd, in_ecx, in_si, in_di, \ port_num, magic, bp, \ eax, ebx, ecx, edx, si, di) \ ({ \ - asm volatile ("push %%ebp;" \ - "mov %12, %%ebp;" \ + asm volatile ("push %12;" \ + "push %%ebp;" \ + "mov 0x04(%%esp), %%ebp;" \ "rep outsb;" \ - "pop %%ebp;" : \ + "pop %%ebp;" \ + "add $0x04, %%esp;" : \ "=a"(eax), \ "=b"(ebx), \ "=c"(ecx), \ @@ -167,10 +174,12 @@ port_num, magic, bp, \ eax, ebx, ecx, edx, si, di) \ ({ \ - asm volatile ("push %%ebp;" \ - "mov %12, %%ebp;" \ + asm volatile ("push %12;" \ + "push %%ebp;" \ + "mov 0x04(%%esp), %%ebp;" \ "rep insb;" \ - "pop %%ebp" : \ + "pop %%ebp;" \ + "add $0x04, %%esp;" : \ "=a"(eax), \ "=b"(ebx), \ "=c"(ecx), \ diff --git a/drivers/isdn/hardware/eicon/diva.c b/drivers/isdn/hardware/eicon/diva.c index 944a7f338099..1b25d8bc153a 100644 --- a/drivers/isdn/hardware/eicon/diva.c +++ b/drivers/isdn/hardware/eicon/diva.c @@ -388,10 +388,10 @@ void divasa_xdi_driver_unload(void) ** Receive and process command from user mode utility */ void *diva_xdi_open_adapter(void *os_handle, const void __user *src, - int length, + int length, void *mptr, divas_xdi_copy_from_user_fn_t cp_fn) { - diva_xdi_um_cfg_cmd_t msg; + diva_xdi_um_cfg_cmd_t *msg = (diva_xdi_um_cfg_cmd_t *)mptr; diva_os_xdi_adapter_t *a = NULL; diva_os_spin_lock_magic_t old_irql; struct list_head *tmp; @@ -401,21 +401,21 @@ void *diva_xdi_open_adapter(void *os_handle, const void __user *src, length, sizeof(diva_xdi_um_cfg_cmd_t))) return NULL; } - if ((*cp_fn) (os_handle, &msg, src, sizeof(msg)) <= 0) { + if ((*cp_fn) (os_handle, msg, src, sizeof(*msg)) <= 0) { DBG_ERR(("A: A(?) open, write error")) return NULL; } diva_os_enter_spin_lock(&adapter_lock, &old_irql, "open_adapter"); list_for_each(tmp, &adapter_queue) { a = list_entry(tmp, diva_os_xdi_adapter_t, link); - if (a->controller == (int)msg.adapter) + if (a->controller == (int)msg->adapter) break; a = NULL; } diva_os_leave_spin_lock(&adapter_lock, &old_irql, "open_adapter"); if (!a) { - DBG_ERR(("A: A(%d) open, adapter not found", msg.adapter)) + DBG_ERR(("A: A(%d) open, adapter not found", msg->adapter)) } return (a); @@ -437,8 +437,10 @@ void diva_xdi_close_adapter(void *adapter, void *os_handle) int diva_xdi_write(void *adapter, void *os_handle, const void __user *src, - int length, divas_xdi_copy_from_user_fn_t cp_fn) + int length, void *mptr, + divas_xdi_copy_from_user_fn_t cp_fn) { + diva_xdi_um_cfg_cmd_t *msg = (diva_xdi_um_cfg_cmd_t *)mptr; diva_os_xdi_adapter_t *a = (diva_os_xdi_adapter_t *) adapter; void *data; @@ -459,7 +461,13 @@ diva_xdi_write(void *adapter, void *os_handle, const void __user *src, return (-2); } - length = (*cp_fn) (os_handle, data, src, length); + if (msg) { + *(diva_xdi_um_cfg_cmd_t *)data = *msg; + length = (*cp_fn) (os_handle, (char *)data + sizeof(*msg), + src + sizeof(*msg), length - sizeof(*msg)); + } else { + length = (*cp_fn) (os_handle, data, src, length); + } if (length > 0) { if ((*(a->interface.cmd_proc)) (a, (diva_xdi_um_cfg_cmd_t *) data, length)) { diff --git a/drivers/isdn/hardware/eicon/diva.h b/drivers/isdn/hardware/eicon/diva.h index b067032093a8..1ad76650fbf9 100644 --- a/drivers/isdn/hardware/eicon/diva.h +++ b/drivers/isdn/hardware/eicon/diva.h @@ -20,10 +20,11 @@ int diva_xdi_read(void *adapter, void *os_handle, void __user *dst, int max_length, divas_xdi_copy_to_user_fn_t cp_fn); int diva_xdi_write(void *adapter, void *os_handle, const void __user *src, - int length, divas_xdi_copy_from_user_fn_t cp_fn); + int length, void *msg, + divas_xdi_copy_from_user_fn_t cp_fn); void *diva_xdi_open_adapter(void *os_handle, const void __user *src, - int length, + int length, void *msg, divas_xdi_copy_from_user_fn_t cp_fn); void diva_xdi_close_adapter(void *adapter, void *os_handle); diff --git a/drivers/isdn/hardware/eicon/divasmain.c b/drivers/isdn/hardware/eicon/divasmain.c index b9980e84f9db..b6a3950b2564 100644 --- a/drivers/isdn/hardware/eicon/divasmain.c +++ b/drivers/isdn/hardware/eicon/divasmain.c @@ -591,19 +591,22 @@ static int divas_release(struct inode *inode, struct file *file) static ssize_t divas_write(struct file *file, const char __user *buf, size_t count, loff_t *ppos) { + diva_xdi_um_cfg_cmd_t msg; int ret = -EINVAL; if (!file->private_data) { file->private_data = diva_xdi_open_adapter(file, buf, - count, + count, &msg, xdi_copy_from_user); - } - if (!file->private_data) { - return (-ENODEV); + if (!file->private_data) + return (-ENODEV); + ret = diva_xdi_write(file->private_data, file, + buf, count, &msg, xdi_copy_from_user); + } else { + ret = diva_xdi_write(file->private_data, file, + buf, count, NULL, xdi_copy_from_user); } - ret = diva_xdi_write(file->private_data, file, - buf, count, xdi_copy_from_user); switch (ret) { case -1: /* Message should be removed from rx mailbox first */ ret = -EBUSY; @@ -622,11 +625,12 @@ static ssize_t divas_write(struct file *file, const char __user *buf, static ssize_t divas_read(struct file *file, char __user *buf, size_t count, loff_t *ppos) { + diva_xdi_um_cfg_cmd_t msg; int ret = -EINVAL; if (!file->private_data) { file->private_data = diva_xdi_open_adapter(file, buf, - count, + count, &msg, xdi_copy_from_user); } if (!file->private_data) { diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index 9e923cd1d80e..38a7586b00cc 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -2485,7 +2485,7 @@ static long mmc_rpmb_ioctl(struct file *filp, unsigned int cmd, break; } - return 0; + return ret; } #ifdef CONFIG_COMPAT diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c index 0ef741bc515d..d0e83db42ae5 100644 --- a/drivers/mmc/host/sdhci-iproc.c +++ b/drivers/mmc/host/sdhci-iproc.c @@ -33,6 +33,8 @@ struct sdhci_iproc_host { const struct sdhci_iproc_data *data; u32 shadow_cmd; u32 shadow_blk; + bool is_cmd_shadowed; + bool is_blk_shadowed; }; #define REG_OFFSET_IN_BITS(reg) ((reg) << 3 & 0x18) @@ -48,8 +50,22 @@ static inline u32 sdhci_iproc_readl(struct sdhci_host *host, int reg) static u16 sdhci_iproc_readw(struct sdhci_host *host, int reg) { - u32 val = sdhci_iproc_readl(host, (reg & ~3)); - u16 word = val >> REG_OFFSET_IN_BITS(reg) & 0xffff; + struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host); + struct sdhci_iproc_host *iproc_host = sdhci_pltfm_priv(pltfm_host); + u32 val; + u16 word; + + if ((reg == SDHCI_TRANSFER_MODE) && iproc_host->is_cmd_shadowed) { + /* Get the saved transfer mode */ + val = iproc_host->shadow_cmd; + } else if ((reg == SDHCI_BLOCK_SIZE || reg == SDHCI_BLOCK_COUNT) && + iproc_host->is_blk_shadowed) { + /* Get the saved block info */ + val = iproc_host->shadow_blk; + } else { + val = sdhci_iproc_readl(host, (reg & ~3)); + } + word = val >> REG_OFFSET_IN_BITS(reg) & 0xffff; return word; } @@ -105,13 +121,15 @@ static void sdhci_iproc_writew(struct sdhci_host *host, u16 val, int reg) if (reg == SDHCI_COMMAND) { /* Write the block now as we are issuing a command */ - if (iproc_host->shadow_blk != 0) { + if (iproc_host->is_blk_shadowed) { sdhci_iproc_writel(host, iproc_host->shadow_blk, SDHCI_BLOCK_SIZE); - iproc_host->shadow_blk = 0; + iproc_host->is_blk_shadowed = false; } oldval = iproc_host->shadow_cmd; - } else if (reg == SDHCI_BLOCK_SIZE || reg == SDHCI_BLOCK_COUNT) { + iproc_host->is_cmd_shadowed = false; + } else if ((reg == SDHCI_BLOCK_SIZE || reg == SDHCI_BLOCK_COUNT) && + iproc_host->is_blk_shadowed) { /* Block size and count are stored in shadow reg */ oldval = iproc_host->shadow_blk; } else { @@ -123,9 +141,11 @@ static void sdhci_iproc_writew(struct sdhci_host *host, u16 val, int reg) if (reg == SDHCI_TRANSFER_MODE) { /* Save the transfer mode until the command is issued */ iproc_host->shadow_cmd = newval; + iproc_host->is_cmd_shadowed = true; } else if (reg == SDHCI_BLOCK_SIZE || reg == SDHCI_BLOCK_COUNT) { /* Save the block info until the command is issued */ iproc_host->shadow_blk = newval; + iproc_host->is_blk_shadowed = true; } else { /* Command or other regular 32-bit write */ sdhci_iproc_writel(host, newval, reg & ~3); @@ -166,7 +186,7 @@ static const struct sdhci_ops sdhci_iproc_32only_ops = { static const struct sdhci_pltfm_data sdhci_iproc_cygnus_pltfm_data = { .quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK, - .quirks2 = SDHCI_QUIRK2_ACMD23_BROKEN, + .quirks2 = SDHCI_QUIRK2_ACMD23_BROKEN | SDHCI_QUIRK2_HOST_OFF_CARD_ON, .ops = &sdhci_iproc_32only_ops, }; @@ -206,7 +226,6 @@ static const struct sdhci_iproc_data iproc_data = { .caps1 = SDHCI_DRIVER_TYPE_C | SDHCI_DRIVER_TYPE_D | SDHCI_SUPPORT_DDR50, - .mmc_caps = MMC_CAP_1_8V_DDR, }; static const struct sdhci_pltfm_data sdhci_bcm2835_pltfm_data = { diff --git a/drivers/net/ethernet/amd/pcnet32.c b/drivers/net/ethernet/amd/pcnet32.c index a561705f232c..be198cc0b10c 100644 --- a/drivers/net/ethernet/amd/pcnet32.c +++ b/drivers/net/ethernet/amd/pcnet32.c @@ -1552,22 +1552,26 @@ pcnet32_probe_pci(struct pci_dev *pdev, const struct pci_device_id *ent) if (!ioaddr) { if (pcnet32_debug & NETIF_MSG_PROBE) pr_err("card has no PCI IO resources, aborting\n"); - return -ENODEV; + err = -ENODEV; + goto err_disable_dev; } err = pci_set_dma_mask(pdev, PCNET32_DMA_MASK); if (err) { if (pcnet32_debug & NETIF_MSG_PROBE) pr_err("architecture does not support 32bit PCI busmaster DMA\n"); - return err; + goto err_disable_dev; } if (!request_region(ioaddr, PCNET32_TOTAL_SIZE, "pcnet32_probe_pci")) { if (pcnet32_debug & NETIF_MSG_PROBE) pr_err("io address range already allocated\n"); - return -EBUSY; + err = -EBUSY; + goto err_disable_dev; } err = pcnet32_probe1(ioaddr, 1, pdev); + +err_disable_dev: if (err < 0) pci_disable_device(pdev); diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c index 81684acf52af..8a8b12b720ef 100644 --- a/drivers/net/ethernet/cisco/enic/enic_main.c +++ b/drivers/net/ethernet/cisco/enic/enic_main.c @@ -2747,11 +2747,11 @@ static int enic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_master(pdev); /* Query PCI controller on system for DMA addressing - * limitation for the device. Try 64-bit first, and + * limitation for the device. Try 47-bit first, and * fail to 32-bit. */ - err = pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); + err = pci_set_dma_mask(pdev, DMA_BIT_MASK(47)); if (err) { err = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); if (err) { @@ -2765,10 +2765,10 @@ static int enic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) goto err_out_release_regions; } } else { - err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64)); + err = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(47)); if (err) { dev_err(dev, "Unable to obtain %u-bit DMA " - "for consistent allocations, aborting\n", 64); + "for consistent allocations, aborting\n", 47); goto err_out_release_regions; } using_dac = 1; diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c index d4604bc8eb5b..9d3eed46830d 100644 --- a/drivers/net/ethernet/freescale/fec_main.c +++ b/drivers/net/ethernet/freescale/fec_main.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0+ /* * Fast Ethernet Controller (FEC) driver for Motorola MPC8xx. * Copyright (c) 1997 Dan Malek (dmalek@jlc.net) diff --git a/drivers/net/ethernet/freescale/fec_ptp.c b/drivers/net/ethernet/freescale/fec_ptp.c index f81439796ac7..43d973215040 100644 --- a/drivers/net/ethernet/freescale/fec_ptp.c +++ b/drivers/net/ethernet/freescale/fec_ptp.c @@ -1,20 +1,8 @@ +// SPDX-License-Identifier: GPL-2.0 /* * Fast Ethernet Controller (ENET) PTP driver for MX6x. * * Copyright (C) 2012 Freescale Semiconductor, Inc. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope 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., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. */ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt diff --git a/drivers/net/ethernet/ibm/ibmvnic.c b/drivers/net/ethernet/ibm/ibmvnic.c index 4bb4646a5f92..5ec1185808e5 100644 --- a/drivers/net/ethernet/ibm/ibmvnic.c +++ b/drivers/net/ethernet/ibm/ibmvnic.c @@ -796,9 +796,11 @@ static int ibmvnic_login(struct net_device *netdev) struct ibmvnic_adapter *adapter = netdev_priv(netdev); unsigned long timeout = msecs_to_jiffies(30000); int retry_count = 0; + bool retry; int rc; do { + retry = false; if (retry_count > IBMVNIC_MAX_QUEUES) { netdev_warn(netdev, "Login attempts exceeded\n"); return -1; @@ -822,6 +824,9 @@ static int ibmvnic_login(struct net_device *netdev) retry_count++; release_sub_crqs(adapter, 1); + retry = true; + netdev_dbg(netdev, + "Received partial success, retrying...\n"); adapter->init_done_rc = 0; reinit_completion(&adapter->init_done); send_cap_queries(adapter); @@ -849,7 +854,7 @@ static int ibmvnic_login(struct net_device *netdev) netdev_warn(netdev, "Adapter login failed\n"); return -1; } - } while (adapter->init_done_rc == PARTIALSUCCESS); + } while (retry); /* handle pending MAC address changes after successful login */ if (adapter->mac_change_pending) { @@ -2617,18 +2622,21 @@ static int enable_scrq_irq(struct ibmvnic_adapter *adapter, { struct device *dev = &adapter->vdev->dev; unsigned long rc; - u64 val; if (scrq->hw_irq > 0x100000000ULL) { dev_err(dev, "bad hw_irq = %lx\n", scrq->hw_irq); return 1; } - val = (0xff000000) | scrq->hw_irq; - rc = plpar_hcall_norets(H_EOI, val); - if (rc) - dev_err(dev, "H_EOI FAILED irq 0x%llx. rc=%ld\n", - val, rc); + if (adapter->resetting && + adapter->reset_reason == VNIC_RESET_MOBILITY) { + u64 val = (0xff000000) | scrq->hw_irq; + + rc = plpar_hcall_norets(H_EOI, val); + if (rc) + dev_err(dev, "H_EOI FAILED irq 0x%llx. rc=%ld\n", + val, rc); + } rc = plpar_hcall_norets(H_VIOCTL, adapter->vdev->unit_address, H_ENABLE_VIO_INTERRUPT, scrq->hw_irq, 0, 0); diff --git a/drivers/net/ethernet/mellanox/mlx4/icm.c b/drivers/net/ethernet/mellanox/mlx4/icm.c index a822f7a56bc5..685337d58276 100644 --- a/drivers/net/ethernet/mellanox/mlx4/icm.c +++ b/drivers/net/ethernet/mellanox/mlx4/icm.c @@ -43,12 +43,12 @@ #include "fw.h" /* - * We allocate in as big chunks as we can, up to a maximum of 256 KB - * per chunk. + * We allocate in page size (default 4KB on many archs) chunks to avoid high + * order memory allocations in fragmented/high usage memory situation. */ enum { - MLX4_ICM_ALLOC_SIZE = 1 << 18, - MLX4_TABLE_CHUNK_SIZE = 1 << 18 + MLX4_ICM_ALLOC_SIZE = PAGE_SIZE, + MLX4_TABLE_CHUNK_SIZE = PAGE_SIZE, }; static void mlx4_free_icm_pages(struct mlx4_dev *dev, struct mlx4_icm_chunk *chunk) @@ -398,9 +398,11 @@ int mlx4_init_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table, u64 size; obj_per_chunk = MLX4_TABLE_CHUNK_SIZE / obj_size; + if (WARN_ON(!obj_per_chunk)) + return -EINVAL; num_icm = (nobj + obj_per_chunk - 1) / obj_per_chunk; - table->icm = kcalloc(num_icm, sizeof(*table->icm), GFP_KERNEL); + table->icm = kvzalloc(num_icm * sizeof(*table->icm), GFP_KERNEL); if (!table->icm) return -ENOMEM; table->virt = virt; @@ -446,7 +448,7 @@ err: mlx4_free_icm(dev, table->icm[i], use_coherent); } - kfree(table->icm); + kvfree(table->icm); return -ENOMEM; } @@ -462,5 +464,5 @@ void mlx4_cleanup_icm_table(struct mlx4_dev *dev, struct mlx4_icm_table *table) mlx4_free_icm(dev, table->icm[i], table->coherent); } - kfree(table->icm); + kvfree(table->icm); } diff --git a/drivers/net/ethernet/mellanox/mlx4/intf.c b/drivers/net/ethernet/mellanox/mlx4/intf.c index 2edcce98ab2d..65482f004e50 100644 --- a/drivers/net/ethernet/mellanox/mlx4/intf.c +++ b/drivers/net/ethernet/mellanox/mlx4/intf.c @@ -172,7 +172,7 @@ int mlx4_do_bond(struct mlx4_dev *dev, bool enable) list_add_tail(&dev_ctx->list, &priv->ctx_list); spin_unlock_irqrestore(&priv->ctx_lock, flags); - mlx4_dbg(dev, "Inrerface for protocol %d restarted with when bonded mode is %s\n", + mlx4_dbg(dev, "Interface for protocol %d restarted with bonded mode %s\n", dev_ctx->intf->protocol, enable ? "enabled" : "disabled"); } diff --git a/drivers/net/ethernet/mellanox/mlx4/qp.c b/drivers/net/ethernet/mellanox/mlx4/qp.c index 3aaf4bad6c5a..427e7a31862c 100644 --- a/drivers/net/ethernet/mellanox/mlx4/qp.c +++ b/drivers/net/ethernet/mellanox/mlx4/qp.c @@ -393,11 +393,11 @@ struct mlx4_qp *mlx4_qp_lookup(struct mlx4_dev *dev, u32 qpn) struct mlx4_qp_table *qp_table = &mlx4_priv(dev)->qp_table; struct mlx4_qp *qp; - spin_lock(&qp_table->lock); + spin_lock_irq(&qp_table->lock); qp = __mlx4_qp_lookup(dev, qpn); - spin_unlock(&qp_table->lock); + spin_unlock_irq(&qp_table->lock); return qp; } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c index 176645762e49..1ff0b0e93804 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/en_rx.c @@ -615,6 +615,45 @@ static inline bool is_last_ethertype_ip(struct sk_buff *skb, int *network_depth) return (ethertype == htons(ETH_P_IP) || ethertype == htons(ETH_P_IPV6)); } +static __be32 mlx5e_get_fcs(struct sk_buff *skb) +{ + int last_frag_sz, bytes_in_prev, nr_frags; + u8 *fcs_p1, *fcs_p2; + skb_frag_t *last_frag; + __be32 fcs_bytes; + + if (!skb_is_nonlinear(skb)) + return *(__be32 *)(skb->data + skb->len - ETH_FCS_LEN); + + nr_frags = skb_shinfo(skb)->nr_frags; + last_frag = &skb_shinfo(skb)->frags[nr_frags - 1]; + last_frag_sz = skb_frag_size(last_frag); + + /* If all FCS data is in last frag */ + if (last_frag_sz >= ETH_FCS_LEN) + return *(__be32 *)(skb_frag_address(last_frag) + + last_frag_sz - ETH_FCS_LEN); + + fcs_p2 = (u8 *)skb_frag_address(last_frag); + bytes_in_prev = ETH_FCS_LEN - last_frag_sz; + + /* Find where the other part of the FCS is - Linear or another frag */ + if (nr_frags == 1) { + fcs_p1 = skb_tail_pointer(skb); + } else { + skb_frag_t *prev_frag = &skb_shinfo(skb)->frags[nr_frags - 2]; + + fcs_p1 = skb_frag_address(prev_frag) + + skb_frag_size(prev_frag); + } + fcs_p1 -= bytes_in_prev; + + memcpy(&fcs_bytes, fcs_p1, bytes_in_prev); + memcpy(((u8 *)&fcs_bytes) + bytes_in_prev, fcs_p2, last_frag_sz); + + return fcs_bytes; +} + static inline void mlx5e_handle_csum(struct net_device *netdev, struct mlx5_cqe64 *cqe, struct mlx5e_rq *rq, @@ -643,6 +682,9 @@ static inline void mlx5e_handle_csum(struct net_device *netdev, skb->csum = csum_partial(skb->data + ETH_HLEN, network_depth - ETH_HLEN, skb->csum); + if (unlikely(netdev->features & NETIF_F_RXFCS)) + skb->csum = csum_add(skb->csum, + (__force __wsum)mlx5e_get_fcs(skb)); rq->stats.csum_complete++; return; } diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c b/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c index 0f5da499a223..fad8c2e3804e 100644 --- a/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c +++ b/drivers/net/ethernet/mellanox/mlx5/core/fpga/ipsec.c @@ -237,19 +237,17 @@ static void *mlx5_fpga_ipsec_cmd_exec(struct mlx5_core_dev *mdev, context->buf.sg[0].data = &context->command; spin_lock_irqsave(&fdev->ipsec->pending_cmds_lock, flags); - list_add_tail(&context->list, &fdev->ipsec->pending_cmds); + res = mlx5_fpga_sbu_conn_sendmsg(fdev->ipsec->conn, &context->buf); + if (!res) + list_add_tail(&context->list, &fdev->ipsec->pending_cmds); spin_unlock_irqrestore(&fdev->ipsec->pending_cmds_lock, flags); - res = mlx5_fpga_sbu_conn_sendmsg(fdev->ipsec->conn, &context->buf); if (res) { - mlx5_fpga_warn(fdev, "Failure sending IPSec command: %d\n", - res); - spin_lock_irqsave(&fdev->ipsec->pending_cmds_lock, flags); - list_del(&context->list); - spin_unlock_irqrestore(&fdev->ipsec->pending_cmds_lock, flags); + mlx5_fpga_warn(fdev, "Failed to send IPSec command: %d\n", res); kfree(context); return ERR_PTR(res); } + /* Context will be freed by wait func after completion */ return context; } diff --git a/drivers/net/ethernet/qlogic/qed/qed_cxt.c b/drivers/net/ethernet/qlogic/qed/qed_cxt.c index 00f41c145d4d..820b226d6ff8 100644 --- a/drivers/net/ethernet/qlogic/qed/qed_cxt.c +++ b/drivers/net/ethernet/qlogic/qed/qed_cxt.c @@ -77,7 +77,7 @@ #define ILT_CFG_REG(cli, reg) PSWRQ2_REG_ ## cli ## _ ## reg ## _RT_OFFSET /* ILT entry structure */ -#define ILT_ENTRY_PHY_ADDR_MASK 0x000FFFFFFFFFFFULL +#define ILT_ENTRY_PHY_ADDR_MASK (~0ULL >> 12) #define ILT_ENTRY_PHY_ADDR_SHIFT 0 #define ILT_ENTRY_VALID_MASK 0x1ULL #define ILT_ENTRY_VALID_SHIFT 52 diff --git a/drivers/net/phy/bcm-cygnus.c b/drivers/net/phy/bcm-cygnus.c index 6838129839ca..e757b09f1889 100644 --- a/drivers/net/phy/bcm-cygnus.c +++ b/drivers/net/phy/bcm-cygnus.c @@ -61,17 +61,17 @@ static int bcm_cygnus_afe_config(struct phy_device *phydev) return rc; /* make rcal=100, since rdb default is 000 */ - rc = bcm_phy_write_exp(phydev, MII_BRCM_CORE_EXPB1, 0x10); + rc = bcm_phy_write_exp_sel(phydev, MII_BRCM_CORE_EXPB1, 0x10); if (rc < 0) return rc; /* CORE_EXPB0, Reset R_CAL/RC_CAL Engine */ - rc = bcm_phy_write_exp(phydev, MII_BRCM_CORE_EXPB0, 0x10); + rc = bcm_phy_write_exp_sel(phydev, MII_BRCM_CORE_EXPB0, 0x10); if (rc < 0) return rc; /* CORE_EXPB0, Disable Reset R_CAL/RC_CAL Engine */ - rc = bcm_phy_write_exp(phydev, MII_BRCM_CORE_EXPB0, 0x00); + rc = bcm_phy_write_exp_sel(phydev, MII_BRCM_CORE_EXPB0, 0x00); return 0; } diff --git a/drivers/net/phy/bcm-phy-lib.c b/drivers/net/phy/bcm-phy-lib.c index 5ad130c3da43..d5e0833d69b9 100644 --- a/drivers/net/phy/bcm-phy-lib.c +++ b/drivers/net/phy/bcm-phy-lib.c @@ -56,7 +56,7 @@ int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum) /* The register must be written to both the Shadow Register Select and * the Shadow Read Register Selector */ - phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | + phy_write(phydev, MII_BCM54XX_AUX_CTL, MII_BCM54XX_AUXCTL_SHDWSEL_MASK | regnum << MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT); return phy_read(phydev, MII_BCM54XX_AUX_CTL); } diff --git a/drivers/net/phy/bcm-phy-lib.h b/drivers/net/phy/bcm-phy-lib.h index 7c73808cbbde..81cceaa412fe 100644 --- a/drivers/net/phy/bcm-phy-lib.h +++ b/drivers/net/phy/bcm-phy-lib.h @@ -14,11 +14,18 @@ #ifndef _LINUX_BCM_PHY_LIB_H #define _LINUX_BCM_PHY_LIB_H +#include <linux/brcmphy.h> #include <linux/phy.h> int bcm_phy_write_exp(struct phy_device *phydev, u16 reg, u16 val); int bcm_phy_read_exp(struct phy_device *phydev, u16 reg); +static inline int bcm_phy_write_exp_sel(struct phy_device *phydev, + u16 reg, u16 val) +{ + return bcm_phy_write_exp(phydev, reg | MII_BCM54XX_EXP_SEL_ER, val); +} + int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val); int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum); diff --git a/drivers/net/phy/bcm7xxx.c b/drivers/net/phy/bcm7xxx.c index 29b1c88b55cc..01d2ff2f6241 100644 --- a/drivers/net/phy/bcm7xxx.c +++ b/drivers/net/phy/bcm7xxx.c @@ -65,10 +65,10 @@ struct bcm7xxx_phy_priv { static void r_rc_cal_reset(struct phy_device *phydev) { /* Reset R_CAL/RC_CAL Engine */ - bcm_phy_write_exp(phydev, 0x00b0, 0x0010); + bcm_phy_write_exp_sel(phydev, 0x00b0, 0x0010); /* Disable Reset R_AL/RC_CAL Engine */ - bcm_phy_write_exp(phydev, 0x00b0, 0x0000); + bcm_phy_write_exp_sel(phydev, 0x00b0, 0x0000); } static int bcm7xxx_28nm_b0_afe_config_init(struct phy_device *phydev) diff --git a/drivers/net/ppp/ppp_generic.c b/drivers/net/ppp/ppp_generic.c index dc7c7ec43202..02ad03a2fab7 100644 --- a/drivers/net/ppp/ppp_generic.c +++ b/drivers/net/ppp/ppp_generic.c @@ -605,30 +605,13 @@ static long ppp_ioctl(struct file *file, unsigned int cmd, unsigned long arg) if (cmd == PPPIOCDETACH) { /* - * We have to be careful here... if the file descriptor - * has been dup'd, we could have another process in the - * middle of a poll using the same file *, so we had - * better not free the interface data structures - - * instead we fail the ioctl. Even in this case, we - * shut down the interface if we are the owner of it. - * Actually, we should get rid of PPPIOCDETACH, userland - * (i.e. pppd) could achieve the same effect by closing - * this fd and reopening /dev/ppp. + * PPPIOCDETACH is no longer supported as it was heavily broken, + * and is only known to have been used by pppd older than + * ppp-2.4.2 (released November 2003). */ + pr_warn_once("%s (%d) used obsolete PPPIOCDETACH ioctl\n", + current->comm, current->pid); err = -EINVAL; - if (pf->kind == INTERFACE) { - ppp = PF_TO_PPP(pf); - rtnl_lock(); - if (file == ppp->owner) - unregister_netdevice(ppp->dev); - rtnl_unlock(); - } - if (atomic_long_read(&file->f_count) < 2) { - ppp_release(NULL, file); - err = 0; - } else - pr_warn("PPPIOCDETACH file->f_count=%ld\n", - atomic_long_read(&file->f_count)); goto out; } diff --git a/drivers/net/tun.c b/drivers/net/tun.c index d45ac37e1287..45d807796a18 100644 --- a/drivers/net/tun.c +++ b/drivers/net/tun.c @@ -1423,6 +1423,13 @@ static void tun_net_init(struct net_device *dev) dev->max_mtu = MAX_MTU - dev->hard_header_len; } +static bool tun_sock_writeable(struct tun_struct *tun, struct tun_file *tfile) +{ + struct sock *sk = tfile->socket.sk; + + return (tun->dev->flags & IFF_UP) && sock_writeable(sk); +} + /* Character device part */ /* Poll */ @@ -1445,10 +1452,14 @@ static __poll_t tun_chr_poll(struct file *file, poll_table *wait) if (!ptr_ring_empty(&tfile->tx_ring)) mask |= EPOLLIN | EPOLLRDNORM; - if (tun->dev->flags & IFF_UP && - (sock_writeable(sk) || - (!test_and_set_bit(SOCKWQ_ASYNC_NOSPACE, &sk->sk_socket->flags) && - sock_writeable(sk)))) + /* Make sure SOCKWQ_ASYNC_NOSPACE is set if not writable to + * guarantee EPOLLOUT to be raised by either here or + * tun_sock_write_space(). Then process could get notification + * after it writes to a down device and meets -EIO. + */ + if (tun_sock_writeable(tun, tfile) || + (!test_and_set_bit(SOCKWQ_ASYNC_NOSPACE, &sk->sk_socket->flags) && + tun_sock_writeable(tun, tfile))) mask |= EPOLLOUT | EPOLLWRNORM; if (tun->dev->reg_state != NETREG_REGISTERED) diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c index 770422e953f7..032e1ac10a30 100644 --- a/drivers/net/virtio_net.c +++ b/drivers/net/virtio_net.c @@ -707,6 +707,13 @@ static struct sk_buff *receive_mergeable(struct net_device *dev, void *data; u32 act; + /* Transient failure which in theory could occur if + * in-flight packets from before XDP was enabled reach + * the receive path after XDP is loaded. + */ + if (unlikely(hdr->hdr.gso_type)) + goto err_xdp; + /* This happens when rx buffer size is underestimated * or headroom is not enough because of the buffer * was refilled before XDP is set. This should only @@ -727,14 +734,6 @@ static struct sk_buff *receive_mergeable(struct net_device *dev, xdp_page = page; } - /* Transient failure which in theory could occur if - * in-flight packets from before XDP was enabled reach - * the receive path after XDP is loaded. In practice I - * was not able to create this condition. - */ - if (unlikely(hdr->hdr.gso_type)) - goto err_xdp; - /* Allow consuming headroom but reserve enough space to push * the descriptor on if we get an XDP_TX return code. */ @@ -775,7 +774,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev, } *xdp_xmit = true; if (unlikely(xdp_page != page)) - goto err_xdp; + put_page(page); rcu_read_unlock(); goto xdp_xmit; case XDP_REDIRECT: @@ -787,7 +786,7 @@ static struct sk_buff *receive_mergeable(struct net_device *dev, } *xdp_xmit = true; if (unlikely(xdp_page != page)) - goto err_xdp; + put_page(page); rcu_read_unlock(); goto xdp_xmit; default: @@ -875,7 +874,7 @@ err_xdp: rcu_read_unlock(); err_skb: put_page(page); - while (--num_buf) { + while (num_buf-- > 1) { buf = virtqueue_get_buf(rq->vq, &len); if (unlikely(!buf)) { pr_debug("%s: rx error: %d buffers missing\n", diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 4a017a0d71ea..920c23e542a5 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -3340,7 +3340,7 @@ out_err: static int hwsim_dump_radio_nl(struct sk_buff *skb, struct netlink_callback *cb) { - int last_idx = cb->args[0]; + int last_idx = cb->args[0] - 1; struct mac80211_hwsim_data *data = NULL; int res = 0; void *hdr; @@ -3368,7 +3368,7 @@ static int hwsim_dump_radio_nl(struct sk_buff *skb, last_idx = data->idx; } - cb->args[0] = last_idx; + cb->args[0] = last_idx + 1; /* list changed, but no new element sent, set interrupted flag */ if (skb->len == 0 && cb->prev_seq && cb->seq != cb->prev_seq) { diff --git a/drivers/ssb/Kconfig b/drivers/ssb/Kconfig index 9371651d8017..c574dd210500 100644 --- a/drivers/ssb/Kconfig +++ b/drivers/ssb/Kconfig @@ -117,7 +117,7 @@ config SSB_SERIAL config SSB_DRIVER_PCICORE_POSSIBLE bool - depends on SSB_PCIHOST && SSB = y + depends on SSB_PCIHOST default y config SSB_DRIVER_PCICORE @@ -131,7 +131,7 @@ config SSB_DRIVER_PCICORE config SSB_PCICORE_HOSTMODE bool "Hostmode support for SSB PCI core" - depends on SSB_DRIVER_PCICORE && SSB_DRIVER_MIPS + depends on SSB_DRIVER_PCICORE && SSB_DRIVER_MIPS && SSB = y help PCIcore hostmode operation (external PCI bus). diff --git a/drivers/vhost/vhost.c b/drivers/vhost/vhost.c index f3bd8e941224..f0be5f35ab28 100644 --- a/drivers/vhost/vhost.c +++ b/drivers/vhost/vhost.c @@ -981,6 +981,7 @@ static int vhost_process_iotlb_msg(struct vhost_dev *dev, { int ret = 0; + mutex_lock(&dev->mutex); vhost_dev_lock_vqs(dev); switch (msg->type) { case VHOST_IOTLB_UPDATE: @@ -1016,6 +1017,8 @@ static int vhost_process_iotlb_msg(struct vhost_dev *dev, } vhost_dev_unlock_vqs(dev); + mutex_unlock(&dev->mutex); + return ret; } ssize_t vhost_chr_write_iter(struct vhost_dev *dev, diff --git a/fs/ocfs2/cluster/heartbeat.c b/fs/ocfs2/cluster/heartbeat.c index 91a8889abf9b..ea8c551bcd7e 100644 --- a/fs/ocfs2/cluster/heartbeat.c +++ b/fs/ocfs2/cluster/heartbeat.c @@ -570,16 +570,7 @@ static struct bio *o2hb_setup_one_bio(struct o2hb_region *reg, current_page, vec_len, vec_start); len = bio_add_page(bio, page, vec_len, vec_start); - if (len != vec_len) { - mlog(ML_ERROR, "Adding page[%d] to bio failed, " - "page %p, len %d, vec_len %u, vec_start %u, " - "bi_sector %llu\n", current_page, page, len, - vec_len, vec_start, - (unsigned long long)bio->bi_iter.bi_sector); - bio_put(bio); - bio = ERR_PTR(-EIO); - return bio; - } + if (len != vec_len) break; cs += vec_len / (PAGE_SIZE/spp); vec_start = 0; diff --git a/fs/seq_file.c b/fs/seq_file.c index c6c27f1f9c98..4cc090b50cc5 100644 --- a/fs/seq_file.c +++ b/fs/seq_file.c @@ -709,11 +709,6 @@ void seq_put_decimal_ull_width(struct seq_file *m, const char *delimiter, if (m->count + width >= m->size) goto overflow; - if (num < 10) { - m->buf[m->count++] = num + '0'; - return; - } - len = num_to_str(m->buf + m->count, m->size - m->count, num, width); if (!len) goto overflow; diff --git a/include/linux/bpf_verifier.h b/include/linux/bpf_verifier.h index 65cfc2f59db9..df36b1b08af0 100644 --- a/include/linux/bpf_verifier.h +++ b/include/linux/bpf_verifier.h @@ -142,7 +142,7 @@ struct bpf_verifier_state_list { struct bpf_insn_aux_data { union { enum bpf_reg_type ptr_type; /* pointer type for load/store insns */ - struct bpf_map *map_ptr; /* pointer for call insn into lookup_elem */ + unsigned long map_state; /* pointer/poison value for maps */ s32 call_imm; /* saved imm field of call insn */ }; int ctx_field_size; /* the ctx field size for load insn, maybe 0 */ diff --git a/include/linux/gfp.h b/include/linux/gfp.h index 1a4582b44d32..fc5ab85278d5 100644 --- a/include/linux/gfp.h +++ b/include/linux/gfp.h @@ -464,7 +464,7 @@ static inline struct page * __alloc_pages_node(int nid, gfp_t gfp_mask, unsigned int order) { VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES); - VM_WARN_ON(!node_online(nid)); + VM_WARN_ON((gfp_mask & __GFP_THISNODE) && !node_online(nid)); return __alloc_pages(gfp_mask, order, nid); } diff --git a/include/linux/node.h b/include/linux/node.h index 41f171861dcc..6d336e38d155 100644 --- a/include/linux/node.h +++ b/include/linux/node.h @@ -32,9 +32,11 @@ extern struct node *node_devices[]; typedef void (*node_registration_func_t)(struct node *); #if defined(CONFIG_MEMORY_HOTPLUG_SPARSE) && defined(CONFIG_NUMA) -extern int link_mem_sections(int nid, unsigned long start_pfn, unsigned long nr_pages); +extern int link_mem_sections(int nid, unsigned long start_pfn, + unsigned long nr_pages, bool check_nid); #else -static inline int link_mem_sections(int nid, unsigned long start_pfn, unsigned long nr_pages) +static inline int link_mem_sections(int nid, unsigned long start_pfn, + unsigned long nr_pages, bool check_nid) { return 0; } @@ -57,7 +59,7 @@ static inline int register_one_node(int nid) if (error) return error; /* link memory sections under this node */ - error = link_mem_sections(nid, pgdat->node_start_pfn, pgdat->node_spanned_pages); + error = link_mem_sections(nid, pgdat->node_start_pfn, pgdat->node_spanned_pages, true); } return error; diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h index 28b996d63490..35498e613ff5 100644 --- a/include/net/sctp/sctp.h +++ b/include/net/sctp/sctp.h @@ -103,6 +103,8 @@ void sctp_addr_wq_mgmt(struct net *, struct sctp_sockaddr_entry *, int); /* * sctp/socket.c */ +int sctp_inet_connect(struct socket *sock, struct sockaddr *uaddr, + int addr_len, int flags); int sctp_backlog_rcv(struct sock *sk, struct sk_buff *skb); int sctp_inet_listen(struct socket *sock, int backlog); void sctp_write_space(struct sock *sk); diff --git a/include/trace/events/sched.h b/include/trace/events/sched.h index bc01e06bc716..0be866c91f62 100644 --- a/include/trace/events/sched.h +++ b/include/trace/events/sched.h @@ -435,7 +435,9 @@ TRACE_EVENT(sched_pi_setprio, memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN); __entry->pid = tsk->pid; __entry->oldprio = tsk->prio; - __entry->newprio = pi_task ? pi_task->prio : tsk->prio; + __entry->newprio = pi_task ? + min(tsk->normal_prio, pi_task->prio) : + tsk->normal_prio; /* XXX SCHED_DEADLINE bits missing */ ), diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h index 9c3630146cec..271b93783d28 100644 --- a/include/uapi/linux/nl80211.h +++ b/include/uapi/linux/nl80211.h @@ -2698,7 +2698,7 @@ enum nl80211_attrs { #define NL80211_ATTR_KEYS NL80211_ATTR_KEYS #define NL80211_ATTR_FEATURE_FLAGS NL80211_ATTR_FEATURE_FLAGS -#define NL80211_WIPHY_NAME_MAXLEN 128 +#define NL80211_WIPHY_NAME_MAXLEN 64 #define NL80211_MAX_SUPP_RATES 32 #define NL80211_MAX_SUPP_HT_RATES 77 diff --git a/include/uapi/linux/ppp-ioctl.h b/include/uapi/linux/ppp-ioctl.h index b19a9c249b15..784c2e3e572e 100644 --- a/include/uapi/linux/ppp-ioctl.h +++ b/include/uapi/linux/ppp-ioctl.h @@ -106,7 +106,7 @@ struct pppol2tp_ioc_stats { #define PPPIOCGIDLE _IOR('t', 63, struct ppp_idle) /* get idle time */ #define PPPIOCNEWUNIT _IOWR('t', 62, int) /* create new ppp unit */ #define PPPIOCATTACH _IOW('t', 61, int) /* attach to ppp unit */ -#define PPPIOCDETACH _IOW('t', 60, int) /* detach from ppp unit/chan */ +#define PPPIOCDETACH _IOW('t', 60, int) /* obsolete, do not use */ #define PPPIOCSMRRU _IOW('t', 59, int) /* set multilink MRU */ #define PPPIOCCONNECT _IOW('t', 58, int) /* connect channel to unit */ #define PPPIOCDISCONN _IO('t', 57) /* disconnect channel */ diff --git a/init/main.c b/init/main.c index fd37315835b4..3b4ada11ed52 100644 --- a/init/main.c +++ b/init/main.c @@ -91,6 +91,7 @@ #include <linux/cache.h> #include <linux/rodata_test.h> #include <linux/jump_label.h> +#include <linux/mem_encrypt.h> #include <asm/io.h> #include <asm/bugs.h> diff --git a/ipc/shm.c b/ipc/shm.c index 3cf48988d68c..d73269381ec7 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -1363,14 +1363,17 @@ long do_shmat(int shmid, char __user *shmaddr, int shmflg, if (addr) { if (addr & (shmlba - 1)) { - /* - * Round down to the nearest multiple of shmlba. - * For sane do_mmap_pgoff() parameters, avoid - * round downs that trigger nil-page and MAP_FIXED. - */ - if ((shmflg & SHM_RND) && addr >= shmlba) - addr &= ~(shmlba - 1); - else + if (shmflg & SHM_RND) { + addr &= ~(shmlba - 1); /* round down */ + + /* + * Ensure that the round-down is non-nil + * when remapping. This can happen for + * cases when addr < shmlba. + */ + if (!addr && (shmflg & SHM_REMAP)) + goto out; + } else #ifndef __ARCH_FORCE_SHMLBA if (addr & ~PAGE_MASK) #endif diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 2ce967a63ede..1904e814f282 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -156,7 +156,29 @@ struct bpf_verifier_stack_elem { #define BPF_COMPLEXITY_LIMIT_INSNS 131072 #define BPF_COMPLEXITY_LIMIT_STACK 1024 -#define BPF_MAP_PTR_POISON ((void *)0xeB9F + POISON_POINTER_DELTA) +#define BPF_MAP_PTR_UNPRIV 1UL +#define BPF_MAP_PTR_POISON ((void *)((0xeB9FUL << 1) + \ + POISON_POINTER_DELTA)) +#define BPF_MAP_PTR(X) ((struct bpf_map *)((X) & ~BPF_MAP_PTR_UNPRIV)) + +static bool bpf_map_ptr_poisoned(const struct bpf_insn_aux_data *aux) +{ + return BPF_MAP_PTR(aux->map_state) == BPF_MAP_PTR_POISON; +} + +static bool bpf_map_ptr_unpriv(const struct bpf_insn_aux_data *aux) +{ + return aux->map_state & BPF_MAP_PTR_UNPRIV; +} + +static void bpf_map_ptr_store(struct bpf_insn_aux_data *aux, + const struct bpf_map *map, bool unpriv) +{ + BUILD_BUG_ON((unsigned long)BPF_MAP_PTR_POISON & BPF_MAP_PTR_UNPRIV); + unpriv |= bpf_map_ptr_unpriv(aux); + aux->map_state = (unsigned long)map | + (unpriv ? BPF_MAP_PTR_UNPRIV : 0UL); +} struct bpf_call_arg_meta { struct bpf_map *map_ptr; @@ -2358,6 +2380,29 @@ static int prepare_func_exit(struct bpf_verifier_env *env, int *insn_idx) return 0; } +static int +record_func_map(struct bpf_verifier_env *env, struct bpf_call_arg_meta *meta, + int func_id, int insn_idx) +{ + struct bpf_insn_aux_data *aux = &env->insn_aux_data[insn_idx]; + + if (func_id != BPF_FUNC_tail_call && + func_id != BPF_FUNC_map_lookup_elem) + return 0; + if (meta->map_ptr == NULL) { + verbose(env, "kernel subsystem misconfigured verifier\n"); + return -EINVAL; + } + + if (!BPF_MAP_PTR(aux->map_state)) + bpf_map_ptr_store(aux, meta->map_ptr, + meta->map_ptr->unpriv_array); + else if (BPF_MAP_PTR(aux->map_state) != meta->map_ptr) + bpf_map_ptr_store(aux, BPF_MAP_PTR_POISON, + meta->map_ptr->unpriv_array); + return 0; +} + static int check_helper_call(struct bpf_verifier_env *env, int func_id, int insn_idx) { const struct bpf_func_proto *fn = NULL; @@ -2412,13 +2457,6 @@ static int check_helper_call(struct bpf_verifier_env *env, int func_id, int insn err = check_func_arg(env, BPF_REG_2, fn->arg2_type, &meta); if (err) return err; - if (func_id == BPF_FUNC_tail_call) { - if (meta.map_ptr == NULL) { - verbose(env, "verifier bug\n"); - return -EINVAL; - } - env->insn_aux_data[insn_idx].map_ptr = meta.map_ptr; - } err = check_func_arg(env, BPF_REG_3, fn->arg3_type, &meta); if (err) return err; @@ -2429,6 +2467,10 @@ static int check_helper_call(struct bpf_verifier_env *env, int func_id, int insn if (err) return err; + err = record_func_map(env, &meta, func_id, insn_idx); + if (err) + return err; + /* Mark slots with STACK_MISC in case of raw mode, stack offset * is inferred from register state. */ @@ -2453,8 +2495,6 @@ static int check_helper_call(struct bpf_verifier_env *env, int func_id, int insn } else if (fn->ret_type == RET_VOID) { regs[BPF_REG_0].type = NOT_INIT; } else if (fn->ret_type == RET_PTR_TO_MAP_VALUE_OR_NULL) { - struct bpf_insn_aux_data *insn_aux; - regs[BPF_REG_0].type = PTR_TO_MAP_VALUE_OR_NULL; /* There is no offset yet applied, variable or fixed */ mark_reg_known_zero(env, regs, BPF_REG_0); @@ -2470,11 +2510,6 @@ static int check_helper_call(struct bpf_verifier_env *env, int func_id, int insn } regs[BPF_REG_0].map_ptr = meta.map_ptr; regs[BPF_REG_0].id = ++env->id_gen; - insn_aux = &env->insn_aux_data[insn_idx]; - if (!insn_aux->map_ptr) - insn_aux->map_ptr = meta.map_ptr; - else if (insn_aux->map_ptr != meta.map_ptr) - insn_aux->map_ptr = BPF_MAP_PTR_POISON; } else { verbose(env, "unknown return type %d of func %s#%d\n", fn->ret_type, func_id_name(func_id), func_id); @@ -5470,6 +5505,7 @@ static int fixup_bpf_calls(struct bpf_verifier_env *env) struct bpf_insn *insn = prog->insnsi; const struct bpf_func_proto *fn; const int insn_cnt = prog->len; + struct bpf_insn_aux_data *aux; struct bpf_insn insn_buf[16]; struct bpf_prog *new_prog; struct bpf_map *map_ptr; @@ -5544,19 +5580,22 @@ static int fixup_bpf_calls(struct bpf_verifier_env *env) insn->imm = 0; insn->code = BPF_JMP | BPF_TAIL_CALL; + aux = &env->insn_aux_data[i + delta]; + if (!bpf_map_ptr_unpriv(aux)) + continue; + /* instead of changing every JIT dealing with tail_call * emit two extra insns: * if (index >= max_entries) goto out; * index &= array->index_mask; * to avoid out-of-bounds cpu speculation */ - map_ptr = env->insn_aux_data[i + delta].map_ptr; - if (map_ptr == BPF_MAP_PTR_POISON) { + if (bpf_map_ptr_poisoned(aux)) { verbose(env, "tail_call abusing map_ptr\n"); return -EINVAL; } - if (!map_ptr->unpriv_array) - continue; + + map_ptr = BPF_MAP_PTR(aux->map_state); insn_buf[0] = BPF_JMP_IMM(BPF_JGE, BPF_REG_3, map_ptr->max_entries, 2); insn_buf[1] = BPF_ALU32_IMM(BPF_AND, BPF_REG_3, @@ -5580,9 +5619,12 @@ static int fixup_bpf_calls(struct bpf_verifier_env *env) */ if (prog->jit_requested && BITS_PER_LONG == 64 && insn->imm == BPF_FUNC_map_lookup_elem) { - map_ptr = env->insn_aux_data[i + delta].map_ptr; - if (map_ptr == BPF_MAP_PTR_POISON || - !map_ptr->ops->map_gen_lookup) + aux = &env->insn_aux_data[i + delta]; + if (bpf_map_ptr_poisoned(aux)) + goto patch_call_imm; + + map_ptr = BPF_MAP_PTR(aux->map_state); + if (!map_ptr->ops->map_gen_lookup) goto patch_call_imm; cnt = map_ptr->ops->map_gen_lookup(map_ptr, insn_buf); diff --git a/kernel/kthread.c b/kernel/kthread.c index 2017a39ab490..481951bf091d 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -193,7 +193,7 @@ EXPORT_SYMBOL_GPL(kthread_parkme); void kthread_park_complete(struct task_struct *k) { - complete(&to_kthread(k)->parked); + complete_all(&to_kthread(k)->parked); } static int kthread(void *_create) @@ -459,6 +459,7 @@ void kthread_unpark(struct task_struct *k) if (test_bit(KTHREAD_IS_PER_CPU, &kthread->flags)) __kthread_bind(k, kthread->cpu, TASK_PARKED); + reinit_completion(&kthread->parked); clear_bit(KTHREAD_SHOULD_PARK, &kthread->flags); wake_up_state(k, TASK_PARKED); } @@ -483,9 +484,6 @@ int kthread_park(struct task_struct *k) if (WARN_ON(k->flags & PF_EXITING)) return -ENOSYS; - if (WARN_ON_ONCE(test_bit(KTHREAD_SHOULD_PARK, &kthread->flags))) - return -EBUSY; - set_bit(KTHREAD_SHOULD_PARK, &kthread->flags); if (k != current) { wake_up_process(k); diff --git a/kernel/sched/topology.c b/kernel/sched/topology.c index 64cc564f5255..61a1125c1ae4 100644 --- a/kernel/sched/topology.c +++ b/kernel/sched/topology.c @@ -1708,7 +1708,7 @@ build_sched_domains(const struct cpumask *cpu_map, struct sched_domain_attr *att rcu_read_unlock(); if (rq && sched_debug_enabled) { - pr_info("span: %*pbl (max cpu_capacity = %lu)\n", + pr_info("root domain span: %*pbl (max cpu_capacity = %lu)\n", cpumask_pr_args(cpu_map), rq->rd->max_cpu_capacity); } diff --git a/kernel/sys.c b/kernel/sys.c index b0eee418ee0d..d1b2b8d934bb 100644 --- a/kernel/sys.c +++ b/kernel/sys.c @@ -71,6 +71,9 @@ #include <asm/io.h> #include <asm/unistd.h> +/* Hardening for Spectre-v1 */ +#include <linux/nospec.h> + #include "uid16.h" #ifndef SET_UNALIGN_CTL @@ -1453,6 +1456,7 @@ SYSCALL_DEFINE2(old_getrlimit, unsigned int, resource, if (resource >= RLIM_NLIMITS) return -EINVAL; + resource = array_index_nospec(resource, RLIM_NLIMITS); task_lock(current->group_leader); x = current->signal->rlim[resource]; task_unlock(current->group_leader); @@ -1472,6 +1476,7 @@ COMPAT_SYSCALL_DEFINE2(old_getrlimit, unsigned int, resource, if (resource >= RLIM_NLIMITS) return -EINVAL; + resource = array_index_nospec(resource, RLIM_NLIMITS); task_lock(current->group_leader); r = current->signal->rlim[resource]; task_unlock(current->group_leader); diff --git a/lib/radix-tree.c b/lib/radix-tree.c index 43e0cbedc3a0..a9e41aed6de4 100644 --- a/lib/radix-tree.c +++ b/lib/radix-tree.c @@ -2034,10 +2034,12 @@ void *radix_tree_delete_item(struct radix_tree_root *root, unsigned long index, void *item) { struct radix_tree_node *node = NULL; - void __rcu **slot; + void __rcu **slot = NULL; void *entry; entry = __radix_tree_lookup(root, index, &node, &slot); + if (!slot) + return NULL; if (!entry && (!is_idr(root) || node_tag_get(root, node, IDR_FREE, get_slot_offset(node, slot)))) return NULL; diff --git a/mm/kasan/kasan.c b/mm/kasan/kasan.c index bc0e68f7dc75..f185455b3406 100644 --- a/mm/kasan/kasan.c +++ b/mm/kasan/kasan.c @@ -792,6 +792,40 @@ DEFINE_ASAN_SET_SHADOW(f5); DEFINE_ASAN_SET_SHADOW(f8); #ifdef CONFIG_MEMORY_HOTPLUG +static bool shadow_mapped(unsigned long addr) +{ + pgd_t *pgd = pgd_offset_k(addr); + p4d_t *p4d; + pud_t *pud; + pmd_t *pmd; + pte_t *pte; + + if (pgd_none(*pgd)) + return false; + p4d = p4d_offset(pgd, addr); + if (p4d_none(*p4d)) + return false; + pud = pud_offset(p4d, addr); + if (pud_none(*pud)) + return false; + + /* + * We can't use pud_large() or pud_huge(), the first one is + * arch-specific, the last one depends on HUGETLB_PAGE. So let's abuse + * pud_bad(), if pud is bad then it's bad because it's huge. + */ + if (pud_bad(*pud)) + return true; + pmd = pmd_offset(pud, addr); + if (pmd_none(*pmd)) + return false; + + if (pmd_bad(*pmd)) + return true; + pte = pte_offset_kernel(pmd, addr); + return !pte_none(*pte); +} + static int __meminit kasan_mem_notifier(struct notifier_block *nb, unsigned long action, void *data) { @@ -813,6 +847,14 @@ static int __meminit kasan_mem_notifier(struct notifier_block *nb, case MEM_GOING_ONLINE: { void *ret; + /* + * If shadow is mapped already than it must have been mapped + * during the boot. This could happen if we onlining previously + * offlined memory. + */ + if (shadow_mapped(shadow_start)) + return NOTIFY_OK; + ret = __vmalloc_node_range(shadow_size, PAGE_SIZE, shadow_start, shadow_end, GFP_KERNEL, PAGE_KERNEL, VM_NO_GUARD, @@ -824,8 +866,26 @@ static int __meminit kasan_mem_notifier(struct notifier_block *nb, kmemleak_ignore(ret); return NOTIFY_OK; } - case MEM_OFFLINE: - vfree((void *)shadow_start); + case MEM_CANCEL_ONLINE: + case MEM_OFFLINE: { + struct vm_struct *vm; + + /* + * shadow_start was either mapped during boot by kasan_init() + * or during memory online by __vmalloc_node_range(). + * In the latter case we can use vfree() to free shadow. + * Non-NULL result of the find_vm_area() will tell us if + * that was the second case. + * + * Currently it's not possible to free shadow mapped + * during boot by kasan_init(). It's because the code + * to do that hasn't been written yet. So we'll just + * leak the memory. + */ + vm = find_vm_area((void *)shadow_start); + if (vm) + vfree((void *)shadow_start); + } } return NOTIFY_OK; @@ -838,5 +898,5 @@ static int __init kasan_memhotplug_init(void) return 0; } -module_init(kasan_memhotplug_init); +core_initcall(kasan_memhotplug_init); #endif diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c index f74826cdceea..25982467800b 100644 --- a/mm/memory_hotplug.c +++ b/mm/memory_hotplug.c @@ -1158,7 +1158,7 @@ int __ref add_memory_resource(int nid, struct resource *res, bool online) * nodes have to go through register_node. * TODO clean up this mess. */ - ret = link_mem_sections(nid, start_pfn, nr_pages); + ret = link_mem_sections(nid, start_pfn, nr_pages, false); register_fail: /* * If sysfs file of new node can't create, cpu on the node diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 511a7124d7f9..22320ea27489 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -7598,11 +7598,12 @@ bool has_unmovable_pages(struct zone *zone, struct page *page, int count, unsigned long pfn, iter, found; /* - * For avoiding noise data, lru_add_drain_all() should be called - * If ZONE_MOVABLE, the zone never contains unmovable pages + * TODO we could make this much more efficient by not checking every + * page in the range if we know all of them are in MOVABLE_ZONE and + * that the movable zone guarantees that pages are migratable but + * the later is not the case right now unfortunatelly. E.g. movablecore + * can still lead to having bootmem allocations in zone_movable. */ - if (zone_idx(zone) == ZONE_MOVABLE) - return false; /* * CMA allocations (alloc_contig_range) really need to mark isolate @@ -7623,7 +7624,7 @@ bool has_unmovable_pages(struct zone *zone, struct page *page, int count, page = pfn_to_page(check); if (PageReserved(page)) - return true; + goto unmovable; /* * Hugepages are not in LRU lists, but they're movable. @@ -7673,9 +7674,12 @@ bool has_unmovable_pages(struct zone *zone, struct page *page, int count, * page at boot. */ if (found > count) - return true; + goto unmovable; } return false; +unmovable: + WARN_ON_ONCE(zone_idx(zone) == ZONE_MOVABLE); + return true; } bool is_pageblock_removable_nolock(struct page *page) diff --git a/mm/swapfile.c b/mm/swapfile.c index cc2cf04d9018..78a015fcec3b 100644 --- a/mm/swapfile.c +++ b/mm/swapfile.c @@ -3112,6 +3112,7 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) unsigned long *frontswap_map = NULL; struct page *page = NULL; struct inode *inode = NULL; + bool inced_nr_rotate_swap = false; if (swap_flags & ~SWAP_FLAGS_VALID) return -EINVAL; @@ -3215,8 +3216,10 @@ SYSCALL_DEFINE2(swapon, const char __user *, specialfile, int, swap_flags) cluster = per_cpu_ptr(p->percpu_cluster, cpu); cluster_set_null(&cluster->index); } - } else + } else { atomic_inc(&nr_rotate_swap); + inced_nr_rotate_swap = true; + } error = swap_cgroup_swapon(p->type, maxpages); if (error) @@ -3307,6 +3310,8 @@ bad_swap: vfree(swap_map); kvfree(cluster_info); kvfree(frontswap_map); + if (inced_nr_rotate_swap) + atomic_dec(&nr_rotate_swap); if (swap_file) { if (inode && S_ISREG(inode->i_mode)) { inode_unlock(inode); diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c index a11d3d89f012..a35f597e8c8b 100644 --- a/net/batman-adv/multicast.c +++ b/net/batman-adv/multicast.c @@ -1536,7 +1536,7 @@ out: if (!ret && primary_if) *primary_if = hard_iface; - else + else if (hard_iface) batadv_hardif_put(hard_iface); return ret; diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c index 0225616d5771..3986551397ca 100644 --- a/net/batman-adv/translation-table.c +++ b/net/batman-adv/translation-table.c @@ -862,7 +862,7 @@ batadv_tt_prepare_tvlv_global_data(struct batadv_orig_node *orig_node, struct batadv_orig_node_vlan *vlan; u8 *tt_change_ptr; - rcu_read_lock(); + spin_lock_bh(&orig_node->vlan_list_lock); hlist_for_each_entry_rcu(vlan, &orig_node->vlan_list, list) { num_vlan++; num_entries += atomic_read(&vlan->tt.num_entries); @@ -900,7 +900,7 @@ batadv_tt_prepare_tvlv_global_data(struct batadv_orig_node *orig_node, *tt_change = (struct batadv_tvlv_tt_change *)tt_change_ptr; out: - rcu_read_unlock(); + spin_unlock_bh(&orig_node->vlan_list_lock); return tvlv_len; } @@ -931,15 +931,20 @@ batadv_tt_prepare_tvlv_local_data(struct batadv_priv *bat_priv, struct batadv_tvlv_tt_vlan_data *tt_vlan; struct batadv_softif_vlan *vlan; u16 num_vlan = 0; - u16 num_entries = 0; + u16 vlan_entries = 0; + u16 total_entries = 0; u16 tvlv_len; u8 *tt_change_ptr; int change_offset; - rcu_read_lock(); + spin_lock_bh(&bat_priv->softif_vlan_list_lock); hlist_for_each_entry_rcu(vlan, &bat_priv->softif_vlan_list, list) { + vlan_entries = atomic_read(&vlan->tt.num_entries); + if (vlan_entries < 1) + continue; + num_vlan++; - num_entries += atomic_read(&vlan->tt.num_entries); + total_entries += vlan_entries; } change_offset = sizeof(**tt_data); @@ -947,7 +952,7 @@ batadv_tt_prepare_tvlv_local_data(struct batadv_priv *bat_priv, /* if tt_len is negative, allocate the space needed by the full table */ if (*tt_len < 0) - *tt_len = batadv_tt_len(num_entries); + *tt_len = batadv_tt_len(total_entries); tvlv_len = *tt_len; tvlv_len += change_offset; @@ -964,6 +969,10 @@ batadv_tt_prepare_tvlv_local_data(struct batadv_priv *bat_priv, tt_vlan = (struct batadv_tvlv_tt_vlan_data *)(*tt_data + 1); hlist_for_each_entry_rcu(vlan, &bat_priv->softif_vlan_list, list) { + vlan_entries = atomic_read(&vlan->tt.num_entries); + if (vlan_entries < 1) + continue; + tt_vlan->vid = htons(vlan->vid); tt_vlan->crc = htonl(vlan->tt.crc); @@ -974,7 +983,7 @@ batadv_tt_prepare_tvlv_local_data(struct batadv_priv *bat_priv, *tt_change = (struct batadv_tvlv_tt_change *)tt_change_ptr; out: - rcu_read_unlock(); + spin_unlock_bh(&bat_priv->softif_vlan_list_lock); return tvlv_len; } @@ -1538,6 +1547,8 @@ batadv_tt_global_orig_entry_find(const struct batadv_tt_global_entry *entry, * handled by a given originator * @entry: the TT global entry to check * @orig_node: the originator to search in the list + * @flags: a pointer to store TT flags for the given @entry received + * from @orig_node * * find out if an orig_node is already in the list of a tt_global_entry. * @@ -1545,7 +1556,8 @@ batadv_tt_global_orig_entry_find(const struct batadv_tt_global_entry *entry, */ static bool batadv_tt_global_entry_has_orig(const struct batadv_tt_global_entry *entry, - const struct batadv_orig_node *orig_node) + const struct batadv_orig_node *orig_node, + u8 *flags) { struct batadv_tt_orig_list_entry *orig_entry; bool found = false; @@ -1553,6 +1565,10 @@ batadv_tt_global_entry_has_orig(const struct batadv_tt_global_entry *entry, orig_entry = batadv_tt_global_orig_entry_find(entry, orig_node); if (orig_entry) { found = true; + + if (flags) + *flags = orig_entry->flags; + batadv_tt_orig_list_entry_put(orig_entry); } @@ -1731,7 +1747,7 @@ static bool batadv_tt_global_add(struct batadv_priv *bat_priv, if (!(common->flags & BATADV_TT_CLIENT_TEMP)) goto out; if (batadv_tt_global_entry_has_orig(tt_global_entry, - orig_node)) + orig_node, NULL)) goto out_remove; batadv_tt_global_del_orig_list(tt_global_entry); goto add_orig_entry; @@ -2880,23 +2896,46 @@ unlock: } /** - * batadv_tt_local_valid() - verify that given tt entry is a valid one + * batadv_tt_local_valid() - verify local tt entry and get flags * @entry_ptr: to be checked local tt entry * @data_ptr: not used but definition required to satisfy the callback prototype + * @flags: a pointer to store TT flags for this client to + * + * Checks the validity of the given local TT entry. If it is, then the provided + * flags pointer is updated. * * Return: true if the entry is a valid, false otherwise. */ -static bool batadv_tt_local_valid(const void *entry_ptr, const void *data_ptr) +static bool batadv_tt_local_valid(const void *entry_ptr, + const void *data_ptr, + u8 *flags) { const struct batadv_tt_common_entry *tt_common_entry = entry_ptr; if (tt_common_entry->flags & BATADV_TT_CLIENT_NEW) return false; + + if (flags) + *flags = tt_common_entry->flags; + return true; } +/** + * batadv_tt_global_valid() - verify global tt entry and get flags + * @entry_ptr: to be checked global tt entry + * @data_ptr: an orig_node object (may be NULL) + * @flags: a pointer to store TT flags for this client to + * + * Checks the validity of the given global TT entry. If it is, then the provided + * flags pointer is updated either with the common (summed) TT flags if data_ptr + * is NULL or the specific, per originator TT flags otherwise. + * + * Return: true if the entry is a valid, false otherwise. + */ static bool batadv_tt_global_valid(const void *entry_ptr, - const void *data_ptr) + const void *data_ptr, + u8 *flags) { const struct batadv_tt_common_entry *tt_common_entry = entry_ptr; const struct batadv_tt_global_entry *tt_global_entry; @@ -2910,7 +2949,8 @@ static bool batadv_tt_global_valid(const void *entry_ptr, struct batadv_tt_global_entry, common); - return batadv_tt_global_entry_has_orig(tt_global_entry, orig_node); + return batadv_tt_global_entry_has_orig(tt_global_entry, orig_node, + flags); } /** @@ -2920,25 +2960,34 @@ static bool batadv_tt_global_valid(const void *entry_ptr, * @hash: hash table containing the tt entries * @tt_len: expected tvlv tt data buffer length in number of bytes * @tvlv_buff: pointer to the buffer to fill with the TT data - * @valid_cb: function to filter tt change entries + * @valid_cb: function to filter tt change entries and to return TT flags * @cb_data: data passed to the filter function as argument + * + * Fills the tvlv buff with the tt entries from the specified hash. If valid_cb + * is not provided then this becomes a no-op. */ static void batadv_tt_tvlv_generate(struct batadv_priv *bat_priv, struct batadv_hashtable *hash, void *tvlv_buff, u16 tt_len, bool (*valid_cb)(const void *, - const void *), + const void *, + u8 *flags), void *cb_data) { struct batadv_tt_common_entry *tt_common_entry; struct batadv_tvlv_tt_change *tt_change; struct hlist_head *head; u16 tt_tot, tt_num_entries = 0; + u8 flags; + bool ret; u32 i; tt_tot = batadv_tt_entries(tt_len); tt_change = (struct batadv_tvlv_tt_change *)tvlv_buff; + if (!valid_cb) + return; + rcu_read_lock(); for (i = 0; i < hash->size; i++) { head = &hash->table[i]; @@ -2948,11 +2997,12 @@ static void batadv_tt_tvlv_generate(struct batadv_priv *bat_priv, if (tt_tot == tt_num_entries) break; - if ((valid_cb) && (!valid_cb(tt_common_entry, cb_data))) + ret = valid_cb(tt_common_entry, cb_data, &flags); + if (!ret) continue; ether_addr_copy(tt_change->addr, tt_common_entry->addr); - tt_change->flags = tt_common_entry->flags; + tt_change->flags = flags; tt_change->vid = htons(tt_common_entry->vid); memset(tt_change->reserved, 0, sizeof(tt_change->reserved)); diff --git a/net/dccp/proto.c b/net/dccp/proto.c index 84cd4e3fd01b..0d56e36a6db7 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -283,9 +283,7 @@ int dccp_disconnect(struct sock *sk, int flags) dccp_clear_xmit_timers(sk); ccid_hc_rx_delete(dp->dccps_hc_rx_ccid, sk); - ccid_hc_tx_delete(dp->dccps_hc_tx_ccid, sk); dp->dccps_hc_rx_ccid = NULL; - dp->dccps_hc_tx_ccid = NULL; __skb_queue_purge(&sk->sk_receive_queue); __skb_queue_purge(&sk->sk_write_queue); diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index 4d622112bf95..e66172aaf241 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -649,6 +649,7 @@ const struct nla_policy rtm_ipv4_policy[RTA_MAX + 1] = { [RTA_ENCAP] = { .type = NLA_NESTED }, [RTA_UID] = { .type = NLA_U32 }, [RTA_MARK] = { .type = NLA_U32 }, + [RTA_TABLE] = { .type = NLA_U32 }, }; static int rtm_to_fib_config(struct net *net, struct sk_buff *skb, diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index 5ad2d8ed3a3f..57bbb060faaf 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -505,8 +505,6 @@ int ip_recv_error(struct sock *sk, struct msghdr *msg, int len, int *addr_len) int err; int copied; - WARN_ON_ONCE(sk->sk_family == AF_INET6); - err = -EAGAIN; skb = sock_dequeue_err_skb(sk); if (!skb) diff --git a/net/ipv4/ipmr_base.c b/net/ipv4/ipmr_base.c index 4fe97723b53f..30221701614c 100644 --- a/net/ipv4/ipmr_base.c +++ b/net/ipv4/ipmr_base.c @@ -43,7 +43,10 @@ mr_table_alloc(struct net *net, u32 id, write_pnet(&mrt->net, net); mrt->ops = *ops; - rhltable_init(&mrt->mfc_hash, mrt->ops.rht_params); + if (rhltable_init(&mrt->mfc_hash, mrt->ops.rht_params)) { + kfree(mrt); + return NULL; + } INIT_LIST_HEAD(&mrt->mfc_cache_list); INIT_LIST_HEAD(&mrt->mfc_unres_queue); diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 0f6c9ca59062..5b5b0f95ffd1 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -401,7 +401,7 @@ u32 mesh_plink_deactivate(struct sta_info *sta) static void mesh_sta_info_init(struct ieee80211_sub_if_data *sdata, struct sta_info *sta, - struct ieee802_11_elems *elems, bool insert) + struct ieee802_11_elems *elems) { struct ieee80211_local *local = sdata->local; struct ieee80211_supported_band *sband; @@ -447,7 +447,7 @@ static void mesh_sta_info_init(struct ieee80211_sub_if_data *sdata, sta->sta.bandwidth = IEEE80211_STA_RX_BW_20; } - if (insert) + if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL)) rate_control_rate_init(sta); else rate_control_rate_update(local, sband, sta, changed); @@ -551,7 +551,7 @@ mesh_sta_info_get(struct ieee80211_sub_if_data *sdata, rcu_read_lock(); sta = sta_info_get(sdata, addr); if (sta) { - mesh_sta_info_init(sdata, sta, elems, false); + mesh_sta_info_init(sdata, sta, elems); } else { rcu_read_unlock(); /* can't run atomic */ @@ -561,7 +561,7 @@ mesh_sta_info_get(struct ieee80211_sub_if_data *sdata, return NULL; } - mesh_sta_info_init(sdata, sta, elems, true); + mesh_sta_info_init(sdata, sta, elems); if (sta_info_insert_rcu(sta)) return NULL; diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index e9422fe45179..acb7b86574cd 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -2911,7 +2911,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) if (unlikely(offset < 0)) goto out_free; } else if (reserve) { - skb_push(skb, reserve); + skb_reserve(skb, -reserve); } /* Returns -EFAULT on error */ diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c index 963e4bf0aab8..a57e112d9b3e 100644 --- a/net/sched/cls_api.c +++ b/net/sched/cls_api.c @@ -1588,7 +1588,7 @@ int tc_setup_cb_call(struct tcf_block *block, struct tcf_exts *exts, return ret; ok_count = ret; - if (!exts) + if (!exts || ok_count) return ok_count; ret = tc_exts_setup_cb_egdev_call(exts, type, type_data, err_stop); if (ret < 0) diff --git a/net/sctp/ipv6.c b/net/sctp/ipv6.c index 42247110d842..0cd2e764f47f 100644 --- a/net/sctp/ipv6.c +++ b/net/sctp/ipv6.c @@ -1006,7 +1006,7 @@ static const struct proto_ops inet6_seqpacket_ops = { .owner = THIS_MODULE, .release = inet6_release, .bind = inet6_bind, - .connect = inet_dgram_connect, + .connect = sctp_inet_connect, .socketpair = sock_no_socketpair, .accept = inet_accept, .getname = sctp_getname, diff --git a/net/sctp/protocol.c b/net/sctp/protocol.c index d685f8456762..6bf0a9971888 100644 --- a/net/sctp/protocol.c +++ b/net/sctp/protocol.c @@ -1012,7 +1012,7 @@ static const struct proto_ops inet_seqpacket_ops = { .owner = THIS_MODULE, .release = inet_release, /* Needs to be wrapped... */ .bind = inet_bind, - .connect = inet_dgram_connect, + .connect = sctp_inet_connect, .socketpair = sock_no_socketpair, .accept = inet_accept, .getname = inet_getname, /* Semantics are different. */ diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 80835ac26d2c..ae7e7c606f72 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -1086,7 +1086,7 @@ out: */ static int __sctp_connect(struct sock *sk, struct sockaddr *kaddrs, - int addrs_size, + int addrs_size, int flags, sctp_assoc_t *assoc_id) { struct net *net = sock_net(sk); @@ -1104,7 +1104,6 @@ static int __sctp_connect(struct sock *sk, union sctp_addr *sa_addr = NULL; void *addr_buf; unsigned short port; - unsigned int f_flags = 0; sp = sctp_sk(sk); ep = sp->ep; @@ -1254,13 +1253,7 @@ static int __sctp_connect(struct sock *sk, sp->pf->to_sk_daddr(sa_addr, sk); sk->sk_err = 0; - /* in-kernel sockets don't generally have a file allocated to them - * if all they do is call sock_create_kern(). - */ - if (sk->sk_socket->file) - f_flags = sk->sk_socket->file->f_flags; - - timeo = sock_sndtimeo(sk, f_flags & O_NONBLOCK); + timeo = sock_sndtimeo(sk, flags & O_NONBLOCK); if (assoc_id) *assoc_id = asoc->assoc_id; @@ -1348,7 +1341,7 @@ static int __sctp_setsockopt_connectx(struct sock *sk, sctp_assoc_t *assoc_id) { struct sockaddr *kaddrs; - int err = 0; + int err = 0, flags = 0; pr_debug("%s: sk:%p addrs:%p addrs_size:%d\n", __func__, sk, addrs, addrs_size); @@ -1367,7 +1360,13 @@ static int __sctp_setsockopt_connectx(struct sock *sk, if (err) goto out_free; - err = __sctp_connect(sk, kaddrs, addrs_size, assoc_id); + /* in-kernel sockets don't generally have a file allocated to them + * if all they do is call sock_create_kern(). + */ + if (sk->sk_socket->file) + flags = sk->sk_socket->file->f_flags; + + err = __sctp_connect(sk, kaddrs, addrs_size, flags, assoc_id); out_free: kvfree(kaddrs); @@ -4397,16 +4396,26 @@ out_nounlock: * len: the size of the address. */ static int sctp_connect(struct sock *sk, struct sockaddr *addr, - int addr_len) + int addr_len, int flags) { - int err = 0; + struct inet_sock *inet = inet_sk(sk); struct sctp_af *af; + int err = 0; lock_sock(sk); pr_debug("%s: sk:%p, sockaddr:%p, addr_len:%d\n", __func__, sk, addr, addr_len); + /* We may need to bind the socket. */ + if (!inet->inet_num) { + if (sk->sk_prot->get_port(sk, 0)) { + release_sock(sk); + return -EAGAIN; + } + inet->inet_sport = htons(inet->inet_num); + } + /* Validate addr_len before calling common connect/connectx routine. */ af = sctp_get_af_specific(addr->sa_family); if (!af || addr_len < af->sockaddr_len) { @@ -4415,13 +4424,25 @@ static int sctp_connect(struct sock *sk, struct sockaddr *addr, /* Pass correct addr len to common routine (so it knows there * is only one address being passed. */ - err = __sctp_connect(sk, addr, af->sockaddr_len, NULL); + err = __sctp_connect(sk, addr, af->sockaddr_len, flags, NULL); } release_sock(sk); return err; } +int sctp_inet_connect(struct socket *sock, struct sockaddr *uaddr, + int addr_len, int flags) +{ + if (addr_len < sizeof(uaddr->sa_family)) + return -EINVAL; + + if (uaddr->sa_family == AF_UNSPEC) + return -EOPNOTSUPP; + + return sctp_connect(sock->sk, uaddr, addr_len, flags); +} + /* FIXME: Write comments. */ static int sctp_disconnect(struct sock *sk, int flags) { @@ -8724,7 +8745,6 @@ struct proto sctp_prot = { .name = "SCTP", .owner = THIS_MODULE, .close = sctp_close, - .connect = sctp_connect, .disconnect = sctp_disconnect, .accept = sctp_accept, .ioctl = sctp_ioctl, @@ -8767,7 +8787,6 @@ struct proto sctpv6_prot = { .name = "SCTPv6", .owner = THIS_MODULE, .close = sctp_close, - .connect = sctp_connect, .disconnect = sctp_disconnect, .accept = sctp_accept, .ioctl = sctp_ioctl, diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index a052693c2e85..7c5135a92d76 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -15555,7 +15555,8 @@ void cfg80211_ft_event(struct net_device *netdev, if (!ft_event->target_ap) return; - msg = nlmsg_new(100 + ft_event->ric_ies_len, GFP_KERNEL); + msg = nlmsg_new(100 + ft_event->ies_len + ft_event->ric_ies_len, + GFP_KERNEL); if (!msg) return; diff --git a/net/wireless/reg.c b/net/wireless/reg.c index ac3e12c32aa3..5fcec5c94eb7 100644 --- a/net/wireless/reg.c +++ b/net/wireless/reg.c @@ -916,6 +916,9 @@ int reg_query_regdb_wmm(char *alpha2, int freq, u32 *dbptr, const struct fwdb_header *hdr = regdb; const struct fwdb_country *country; + if (!regdb) + return -ENODATA; + if (IS_ERR(regdb)) return PTR_ERR(regdb); diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index e16d6713f236..2d42eb9cd1a5 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -5041,7 +5041,7 @@ sub process { $tmp_stmt =~ s/\b(typeof|__typeof__|__builtin\w+|typecheck\s*\(\s*$Type\s*,|\#+)\s*\(*\s*$arg\s*\)*\b//g; $tmp_stmt =~ s/\#+\s*$arg\b//g; $tmp_stmt =~ s/\b$arg\s*\#\#//g; - my $use_cnt = $tmp_stmt =~ s/\b$arg\b//g; + my $use_cnt = () = $tmp_stmt =~ /\b$arg\b/g; if ($use_cnt > 1) { CHK("MACRO_ARG_REUSE", "Macro argument reuse '$arg' - possible side-effects?\n" . "$herectx"); diff --git a/sound/core/timer.c b/sound/core/timer.c index dc87728c5b74..0ddcae495838 100644 --- a/sound/core/timer.c +++ b/sound/core/timer.c @@ -592,7 +592,7 @@ static int snd_timer_stop1(struct snd_timer_instance *timeri, bool stop) else timeri->flags |= SNDRV_TIMER_IFLG_PAUSED; snd_timer_notify1(timeri, stop ? SNDRV_TIMER_EVENT_STOP : - SNDRV_TIMER_EVENT_CONTINUE); + SNDRV_TIMER_EVENT_PAUSE); unlock: spin_unlock_irqrestore(&timer->lock, flags); return result; @@ -614,7 +614,7 @@ static int snd_timer_stop_slave(struct snd_timer_instance *timeri, bool stop) list_del_init(&timeri->ack_list); list_del_init(&timeri->active_list); snd_timer_notify1(timeri, stop ? SNDRV_TIMER_EVENT_STOP : - SNDRV_TIMER_EVENT_CONTINUE); + SNDRV_TIMER_EVENT_PAUSE); spin_unlock(&timeri->timer->lock); } spin_unlock_irqrestore(&slave_active_lock, flags); diff --git a/sound/pci/hda/hda_local.h b/sound/pci/hda/hda_local.h index 321e78baa63c..9bd935216c18 100644 --- a/sound/pci/hda/hda_local.h +++ b/sound/pci/hda/hda_local.h @@ -622,8 +622,10 @@ snd_hda_check_power_state(struct hda_codec *codec, hda_nid_t nid, { return snd_hdac_check_power_state(&codec->core, nid, target_state); } -static inline bool snd_hda_sync_power_state(struct hda_codec *codec, - hda_nid_t nid, unsigned int target_state) + +static inline unsigned int snd_hda_sync_power_state(struct hda_codec *codec, + hda_nid_t nid, + unsigned int target_state) { return snd_hdac_sync_power_state(&codec->core, nid, target_state); } diff --git a/tools/testing/radix-tree/idr-test.c b/tools/testing/radix-tree/idr-test.c index 6c645eb77d42..ee820fcc29b0 100644 --- a/tools/testing/radix-tree/idr-test.c +++ b/tools/testing/radix-tree/idr-test.c @@ -252,6 +252,13 @@ void idr_checks(void) idr_remove(&idr, 3); idr_remove(&idr, 0); + assert(idr_alloc(&idr, DUMMY_PTR, 0, 0, GFP_KERNEL) == 0); + idr_remove(&idr, 1); + for (i = 1; i < RADIX_TREE_MAP_SIZE; i++) + assert(idr_alloc(&idr, DUMMY_PTR, 0, 0, GFP_KERNEL) == i); + idr_remove(&idr, 1 << 30); + idr_destroy(&idr); + for (i = INT_MAX - 3UL; i < INT_MAX + 1UL; i++) { struct item *item = item_create(i, 0); assert(idr_alloc(&idr, item, i, i + 10, GFP_KERNEL) == i); diff --git a/tools/testing/selftests/bpf/config b/tools/testing/selftests/bpf/config index 983dd25d49f4..1eefe211a4a8 100644 --- a/tools/testing/selftests/bpf/config +++ b/tools/testing/selftests/bpf/config @@ -5,3 +5,5 @@ CONFIG_BPF_EVENTS=y CONFIG_TEST_BPF=m CONFIG_CGROUP_BPF=y CONFIG_NETDEVSIM=m +CONFIG_NET_CLS_ACT=y +CONFIG_NET_SCH_INGRESS=y diff --git a/tools/testing/selftests/net/config b/tools/testing/selftests/net/config index 6a75a3ea44ad..7ba089b33e8b 100644 --- a/tools/testing/selftests/net/config +++ b/tools/testing/selftests/net/config @@ -7,3 +7,8 @@ CONFIG_NET_L3_MASTER_DEV=y CONFIG_IPV6=y CONFIG_IPV6_MULTIPLE_TABLES=y CONFIG_VETH=y +CONFIG_INET_XFRM_MODE_TUNNEL=y +CONFIG_NET_IPVTI=y +CONFIG_INET6_XFRM_MODE_TUNNEL=y +CONFIG_IPV6_VTI=y +CONFIG_DUMMY=y diff --git a/tools/testing/selftests/net/reuseport_bpf_numa.c b/tools/testing/selftests/net/reuseport_bpf_numa.c index 365c32e84189..c9f478b40996 100644 --- a/tools/testing/selftests/net/reuseport_bpf_numa.c +++ b/tools/testing/selftests/net/reuseport_bpf_numa.c @@ -23,6 +23,8 @@ #include <unistd.h> #include <numa.h> +#include "../kselftest.h" + static const int PORT = 8888; static void build_rcv_group(int *rcv_fd, size_t len, int family, int proto) @@ -229,7 +231,7 @@ int main(void) int *rcv_fd, nodes; if (numa_available() < 0) - error(1, errno, "no numa api support"); + ksft_exit_skip("no numa api support\n"); nodes = numa_max_node() + 1; |