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2015-01-22mfd: max77686/802: Remove support for board filesKrzysztof Kozlowski4-52/+1
The driver is used only on Exynos based boards with DTS support. After removal of board file support from max77686 and max77802 regulator drivers, the MFD driver can be converted to DTS-only version. This simplifies a little the code: 1. No dead (unused) entries in platform_data structure. 2. More code removed. 3. Regulator driver does not depend on allocated memory from MFD driver. 4. It makes also easier extending the regulator driver. Add to the max77686 MFD driver dependency on CONFIG_OF because without DTS the regulator drivers (max77686 and max77802) won't bind. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Tested-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: omap-usb-host: Remove some unused functionsRickard Strandqvist1-10/+0
Removes some functions that are not used anywhere: usbhs_readb() usbhs_writeb() This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: twl6040: Constify struct regmap_config and reg_default arrayKrzysztof Kozlowski1-2/+2
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Make array of struct reg_default const as well. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: twl-core: Constify struct regmap_config and reg_default arrayKrzysztof Kozlowski1-4/+4
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Make array of struct reg_default const as well. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: tps65217: Constify struct regmap_configKrzysztof Kozlowski1-1/+1
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: mc13xxx: i2c/spi: Constify struct regmap_configKrzysztof Kozlowski2-2/+2
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: tps65218: Constify struct regmap_configKrzysztof Kozlowski1-1/+1
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: smsc-ece1099: Constify struct regmap_configKrzysztof Kozlowski1-1/+1
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: davinci_voicecodec: Constify struct regmap_configKrzysztof Kozlowski1-1/+1
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: pcf50633: Constify struct regmap_configKrzysztof Kozlowski1-1/+1
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: retu: Constify struct regmap_configKrzysztof Kozlowski1-1/+1
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: lm3533: Constify struct regmap_configKrzysztof Kozlowski1-1/+1
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: max77686: Constify struct regmap_configKrzysztof Kozlowski1-3/+3
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: intel_soc_pmic: Constify struct regmap_configKrzysztof Kozlowski2-2/+2
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: hi6421-pmic: Constify struct regmap_configKrzysztof Kozlowski1-1/+1
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: 88pm860x-core: Constify struct regmap_configKrzysztof Kozlowski1-1/+1
The regmap_config struct may be const because it is not modified by the driver and regmap_init() accepts pointer to const. Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: axp20x: Add support for fuel gauge cell driverTodd E Brandt1-2/+41
mfd/axp20x: add support for fuel gauge cell Register definitions and platform data structure for fuel gauge cell devices. Signed-off-by: Todd Brandt <todd.e.brandt@intel.com> Acked-by: Jacob Pan <jacob.jun.pan@linux.intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: wm8994: Set mfd id-base for regulator devs creation to avoid conflictsInha Song1-3/+3
After commit: 6e3f62f0793e ("mfd: core: Fix platform-device id generation") We must set the id base when register a duplicate name of mfd_cell. If not, duplicate filename error was reported. - sysfs: cannot create duplicate filename '/devices/.../wm8994-ldo' Signed-off-by: Inha Song <ideal.song@samsung.com> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: dln2: Add suspend/resume functionalityOctavian Purdila1-0/+20
Without suspend/resume functionality in the USB driver the USB core will disconnect and reconnect the DLN2 port and because the GPIO framework does not yet support removal of an in-use controller a suspend/resume operation will result in a crash. This patch provides suspend and resume functions for the DLN2 driver so that the above scenario is avoided, if the host controller does not drop VBUS during suspend, since in this case the device state is preserved. We chose not implemented reset_resume so that if the host controller does drop VBUS the resume path will go through above the disconnect/reconnect process since it is probably better to fix the GPIO framework disconnect issue then to save and restore the device state for every driver. Signed-off-by: Octavian Purdila <octavian.purdila@intel.com> Reviewed-by: Johan Hovold <johan@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: dln2: Add start/stop RX URBs helpersOctavian Purdila1-10/+41
This is in preparation for adding suspend / resume support. Signed-off-by: Octavian Purdila <octavian.purdila@intel.com> Reviewed-by: Johan Hovold <johan@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: lpc_sch: Enable WDT for Intel Quark X1000Ong Boon Leong1-0/+1
Quark X1000 uses ie6xx_wdt driver for WDT. To enable WDT, we declare WDT IO resource size for Quark X1000. Signed-off-by: Ong Boon Leong <boon.leong.ong@intel.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: Add support for DA9150 combined charger & fuel-gauge deviceAdam Thomson5-1/+1649
DA9150 is a combined Charger and Fuel-Gauge IC, with additional GPIO and GPADC functionality. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: db8500-prcmu: Remove unused functionRickard Strandqvist1-9/+0
Remove the function prcmu_get_boot_status() that is not used anywhere. This was partially found by using a static code analysis program called cppcheck. Signed-off-by: Rickard Strandqvist <rickard_strandqvist@spectrumdigital.se> Acked-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: sun6i-prcm: Add support for the ir-clkHans de Goede1-0/+14
Add support for the ir-clk which is part of the sun6i SoC prcm module. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-22mfd: rt5033: Add Richtek RT5033 driver core.Beomho Seo5-0/+477
This patch adds a new driver for Richtek RT5033 driver. RT5033 is a Multifunction device which includes battery charger, fuel gauge, flash LED current source, LDO and synchronous Buck converter. It is interfaced to host controller using I2C interface. Signed-off-by: Beomho Seo <beomho.seo@samsung.com> Acked-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-20mfd: rtsx_usb: Fix runtime PM deadlockRoger Tseng1-12/+0
sd_set_power_mode() in derived module drivers/mmc/host/rtsx_usb_sdmmc.c acquires dev_mutex and then calls pm_runtime_get_sync() to make sure the device is awake while initializing a newly inserted card. Once it is called during suspending state and explicitly before rtsx_usb_suspend() acquires the same dev_mutex, both routine deadlock and further hang the driver because pm_runtime_get_sync() waits the pending PM operations. Fix this by using an empty suspend method. mmc_core always turns the LED off after a request is done and thus it is ok to remove the only rtsx_usb_turn_off_led() here. Cc: <stable@vger.kernel.org> # v3.16+ Fixes: 730876be2566 ("mfd: Add realtek USB card reader driver") Signed-off-by: Roger Tseng <rogerable@realtek.com> [Lee: Removed newly unused variable] Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-20mfd: tps65218: Make INT1 our status_base registerFelipe Balbi1-0/+1
If we don't tell regmap-irq that our first status register is at offset 1, it will try to read offset zero, which is the chipid register. Fixes: 44b4dc6 mfd: tps65218: Add driver for the TPS65218 PMIC Cc: <stable@vger.kernel.org> # v3.15+ Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-20mfd: tps65218: Make INT[12] and STATUS registers volatileFelipe Balbi1-0/+11
STATUS register can be modified by the HW, so we should bypass cache because of that. In the case of INT[12] registers, they are the ones that actually clear the IRQ source at the time they are read. If we rely on the cache for them, we will never be able to clear the interrupt, which will cause our IRQ line to be disabled due to IRQ throttling. Fixes: 44b4dc6 mfd: tps65218: Add driver for the TPS65218 PMIC Cc: <stable@vger.kernel.org> # v3.15+ Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2015-01-20mfd: da9052-core: Fix platform-device id collisionFabio Estevam1-1/+2
Allow multiple DA9052 regulators be registered by registering with PLATFORM_DEVID_AUTO instead of PLATFORM_DEVID_NONE. The subdevices are currently registered with PLATFORM_DEVID_NONE, which will cause a name collision on the platform bus when multiple regulators are registered: [ 0.128855] da9052-regulator da9052-regulator: invalid regulator ID specified [ 0.128973] da9052-regulator: probe of da9052-regulator failed with error -22 [ 0.129148] ------------[ cut here ]------------ [ 0.129200] WARNING: CPU: 0 PID: 1 at fs/sysfs/dir.c:31 sysfs_warn_dup+0x5c/0x7c() [ 0.129233] sysfs: cannot create duplicate filename '/devices/platform/soc/60000000.aips/63fc8000.i2c/i2c-0/0-0048/da9052-regulator ... [ 0.132891] ------------[ cut here ]------------ [ 0.132924] WARNING: CPU: 0 PID: 1 at lib/kobject.c:240 kobject_add_internal+0x24c/0x2cc() [ 0.132957] kobject_add_internal failed for da9052-regulator with -EEXIST, don't try to register things with the same name in the same directory. ... [ 0.137000] da9052 0-0048: mfd_add_devices failed: -17 [ 0.138486] da9052: probe of 0-0048 failed with error -17 Based on the fix done by Johan Hovold at commit b6684228726cc255 ("mfd: viperboard: Fix platform-device id collision"). Tested on a imx53-qsb board, where multiple DA9053 regulators can be successfully probed. Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2014-12-28Linux 3.19-rc2Linus Torvalds1-1/+1
2014-12-28kvm: warn on more invariant breakagePaolo Bonzini1-1/+3
Modifying a non-existent slot is not allowed. Also check that the first loop doesn't move a deleted slot beyond the used part of the mslots array. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-28kvm: fix sorting of memslots with base_gfn == 0Paolo Bonzini1-5/+17
Before commit 0e60b0799fed (kvm: change memslot sorting rule from size to GFN, 2014-12-01), the memslots' sorting key was npages, meaning that a valid memslot couldn't have its sorting key equal to zero. On the other hand, a valid memslot can have base_gfn == 0, and invalid memslots are identified by base_gfn == npages == 0. Because of this, commit 0e60b0799fed broke the invariant that invalid memslots are at the end of the mslots array. When a memslot with base_gfn == 0 was created, any invalid memslot before it were left in place. This can be fixed by changing the insertion to use a ">=" comparison instead of "<=", but some care is needed to avoid breaking the case of deleting a memslot; see the comment in update_memslots. Thanks to Tiejun Chen for posting an initial patch for this bug. Reported-by: Jamie Heilman <jamie@audible.transient.net> Reported-by: Andy Lutomirski <luto@amacapital.net> Tested-by: Jamie Heilman <jamie@audible.transient.net> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-27kvm: x86: drop severity of "generation wraparound" messagePaolo Bonzini1-1/+1
Since most virtual machines raise this message once, it is a bit annoying. Make it KERN_DEBUG severity. Cc: stable@vger.kernel.org Fixes: 7a2e8aaf0f6873b47bc2347f216ea5b0e4c258ab Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-27kvm: x86: vmx: reorder some msr writingTiejun Chen1-44/+44
The commit 34a1cd60d17f, "x86: vmx: move some vmx setting from vmx_init() to hardware_setup()", tried to refactor some codes specific to vmx hardware setting into hardware_setup(), but some msr writing should depend on our previous setting condition like enable_apicv, enable_ept and so on. Reported-by: Jamie Heilman <jamie@audible.transient.net> Tested-by: Jamie Heilman <jamie@audible.transient.net> Signed-off-by: Tiejun Chen <tiejun.chen@intel.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2014-12-26[regression] braino in "lustre: use is_root_inode()"Al Viro1-1/+1
In one of the places (ll_md_blocking_ast()) we had open-coded !is_root_inode(inode) and replaced it with is_root_inode(inode). See the last chunk of f76c23: - inode != inode->i_sb->s_root->d_inode) + is_root_inode(inode)) should've been + !is_root_inode(inode)) obviously... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-12-26parisc: fix out-of-register compiler error in ldcw inline assembler functionJohn David Anglin1-3/+10
The __ldcw macro has a problem when its argument needs to be reloaded from memory. The output memory operand and the input register operand both need to be reloaded using a register in class R1_REGS when generating 64-bit code. This fails because there's only a single register in the class. Instead, use a memory clobber. This also makes the __ldcw macro a compiler memory barrier. Signed-off-by: John David Anglin <dave.anglin@bell.net> Cc: <stable@vger.kernel.org> [3.13+] Signed-off-by: Helge Deller <deller@gmx.de>
2014-12-26ALSA: hda_intel: apply the Seperate stream_tag for SkylakeLibin Yang1-1/+4
The total stream number of Skylake's input and output stream exceeds 15, which will cause some streams do not work because of the overflow on SDxCTL.STRM field if using the legacy stream tag allocation method. This patch uses the new stream tag allocation method by add the flag AZX_DCAPS_SEPARATE_STREAM_TAG for Skylake platform. Signed-off-by: Libin Yang <libin.yang@intel.com> Reviewed-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-26ALSA: hda_controller: Separate stream_tag for input and output streams.Rafal Redzimski2-2/+23
Implemented separate stream_tag assignment for input and output streams. According to hda specification stream tag must be unique throughout the input streams group, however an output stream might use a stream tag which is already in use by an input stream. This change is necessary to support HW which provides a total of more than 15 stream DMA engines which with legacy implementation causes an overflow on SDxCTL.STRM field (and the whole SDxCTL register) and as a result usage of Reserved value 0 in the SDxCTL.STRM field which confuses HDA controller. Signed-off-by: Rafal Redzimski <rafal.f.redzimski@intel.com> Signed-off-by: Jayachandran B <jayachandran.b@intel.com> Signed-off-by: Libin Yang <libin.yang@intel.com> Reviewed-by: Vinod Koul <vinod.koul@intel.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2014-12-24Revert "drm/gem: Warn on illegal use of the dumb buffer interface v2"Dave Airlie9-74/+12
This reverts commit 355a70183848f21198e9f6296bd646df3478a26d. This had some bad side effects under normal operation, and should have been dropped earlier. Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-12-23audit: restore AUDIT_LOGINUID unset ABIRichard Guy Briggs2-0/+14
A regression was caused by commit 780a7654cee8: audit: Make testing for a valid loginuid explicit. (which in turn attempted to fix a regression caused by e1760bd) When audit_krule_to_data() fills in the rules to get a listing, there was a missing clause to convert back from AUDIT_LOGINUID_SET to AUDIT_LOGINUID. This broke userspace by not returning the same information that was sent and expected. The rule: auditctl -a exit,never -F auid=-1 gives: auditctl -l LIST_RULES: exit,never f24=0 syscall=all when it should give: LIST_RULES: exit,never auid=-1 (0xffffffff) syscall=all Tag it so that it is reported the same way it was set. Create a new private flags audit_krule field (pflags) to store it that won't interact with the public one from the API. Cc: stable@vger.kernel.org # v3.10-rc1+ Signed-off-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Paul Moore <pmoore@redhat.com>
2014-12-23arm64: mm: Add pgd_page to support RCU fast_gupJungseok Lee1-2/+3
This patch adds pgd_page definition in order to keep supporting HAVE_GENERIC_RCU_GUP configuration. In addition, it changes pud_page expression to align with pmd_page for readability. An introduction of pgd_page resolves the following build breakage under 4KB + 4Level memory management combo. mm/gup.c: In function 'gup_huge_pgd': mm/gup.c:889:2: error: implicit declaration of function 'pgd_page' [-Werror=implicit-function-declaration] head = pgd_page(orig); ^ mm/gup.c:889:7: warning: assignment makes pointer from integer without a cast head = pgd_page(orig); Cc: Will Deacon <will.deacon@arm.com> Cc: Steve Capper <steve.capper@linaro.org> Signed-off-by: Jungseok Lee <jungseoklee85@gmail.com> [catalin.marinas@arm.com: remove duplicate pmd_page definition] Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-12-23arm64: defconfig: defconfig update for 3.19Will Deacon1-4/+5
The usual defconfig tweaks, this time: - FHANDLE and AUTOFS4_FS to keep systemd happy - PID_NS, QUOTA and KEYS to keep LTP happy - Disable DEBUG_PREEMPT, as this *really* hurts performance Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-12-23arm64: kernel: fix __cpu_suspend mm switch on warm-bootLorenzo Pieralisi1-1/+13
On arm64 the TTBR0_EL1 register is set to either the reserved TTBR0 page tables on boot or to the active_mm mappings belonging to user space processes, it must never be set to swapper_pg_dir page tables mappings. When a CPU is booted its active_mm is set to init_mm even though its TTBR0_EL1 points at the reserved TTBR0 page mappings. This implies that when __cpu_suspend is triggered the active_mm can point at init_mm even if the current TTBR0_EL1 register contains the reserved TTBR0_EL1 mappings. Therefore, the mm save and restore executed in __cpu_suspend might turn out to be erroneous in that, if the current->active_mm corresponds to init_mm, on resume from low power it ends up restoring in the TTBR0_EL1 the init_mm mappings that are global and can cause speculation of TLB entries which end up being propagated to user space. This patch fixes the issue by checking the active_mm pointer before restoring the TTBR0 mappings. If the current active_mm == &init_mm, the code sets the TTBR0_EL1 to the reserved TTBR0 mapping instead of switching back to the active_mm, which is the expected behaviour corresponding to the TTBR0_EL1 settings when __cpu_suspend was entered. Fixes: 95322526ef62 ("arm64: kernel: cpu_{suspend/resume} implementation") Cc: <stable@vger.kernel.org> # 3.14+: 18ab7db Cc: <stable@vger.kernel.org> # 3.14+: 714f599 Cc: <stable@vger.kernel.org> # 3.14+: c3684fb Cc: <stable@vger.kernel.org> # 3.14+ Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-12-23agp: Fix up email address & attributions in AGP MODULE_AUTHOR tagsDave Jones8-8/+8
- Remove soon-to-be-dead @redhat address. - Jeff Hartmann wrote the bulk of the original backend code, and should at least get a mention in the MODULE_AUTHOR for backend.o - Various people at Intel have done a lot more work than myself on the intel-* drivers, so again, mention that. Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-12-22Revert "mm/memory.c: share the i_mmap_rwsem"Kirill A. Shutemov1-2/+2
This reverts commit c8475d144abb1e62958cc5ec281d2a9e161c1946. There are several[1][2] of bug reports which points to this commit as potential cause[3]. Let's revert it until we figure out what's going on. [1] https://lkml.org/lkml/2014/11/14/342 [2] https://lkml.org/lkml/2014/12/22/213 [3] https://lkml.org/lkml/2014/12/9/741 Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Reported-by: Sasha Levin <sasha.levin@oracle.com> Acked-by: Davidlohr Bueso <dave@stgolabs.net> Cc: Hugh Dickins <hughd@google.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Rik van Riel <riel@redhat.com> Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Mel Gorman <mgorman@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-12-23nouveau: bring back legacy mmap handlerDave Airlie1-1/+2
nouveau userspace back at 1.0.1 used to call the X server DRIOpenDRMMaster interface even for DRI2 (doh!), this attempts to map the sarea and fails if it can't. Since 884c6dabb0eafe7227f099c9e78e514191efaf13 from Daniel, this fails, but only ancient drivers would see it. Revert the nouveau bits of that fix. Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: <stable@vger.kernel.org> # 3.18 Signed-off-by: Dave Airlie <airlied@redhat.com>
2014-12-22audit: correctly record file names with different path name typesPaul Moore1-4/+10
There is a problem with the audit system when multiple audit records are created for the same path, each with a different path name type. The root cause of the problem is in __audit_inode() when an exact match (both the path name and path name type) is not found for a path name record; the existing code creates a new path name record, but it never sets the path name in this record, leaving it NULL. This patch corrects this problem by assigning the path name to these newly created records. There are many ways to reproduce this problem, but one of the easiest is the following (assuming auditd is running): # mkdir /root/tmp/test # touch /root/tmp/test/567 # auditctl -a always,exit -F dir=/root/tmp/test # touch /root/tmp/test/567 Afterwards, or while the commands above are running, check the audit log and pay special attention to the PATH records. A faulty kernel will display something like the following for the file creation: type=SYSCALL msg=audit(1416957442.025:93): arch=c000003e syscall=2 success=yes exit=3 ... comm="touch" exe="/usr/bin/touch" type=CWD msg=audit(1416957442.025:93): cwd="/root/tmp" type=PATH msg=audit(1416957442.025:93): item=0 name="test/" inode=401409 ... nametype=PARENT type=PATH msg=audit(1416957442.025:93): item=1 name=(null) inode=393804 ... nametype=NORMAL type=PATH msg=audit(1416957442.025:93): item=2 name=(null) inode=393804 ... nametype=NORMAL While a patched kernel will show the following: type=SYSCALL msg=audit(1416955786.566:89): arch=c000003e syscall=2 success=yes exit=3 ... comm="touch" exe="/usr/bin/touch" type=CWD msg=audit(1416955786.566:89): cwd="/root/tmp" type=PATH msg=audit(1416955786.566:89): item=0 name="test/" inode=401409 ... nametype=PARENT type=PATH msg=audit(1416955786.566:89): item=1 name="test/567" inode=393804 ... nametype=NORMAL This issue was brought up by a number of people, but special credit should go to hujianyang@huawei.com for reporting the problem along with an explanation of the problem and a patch. While the original patch did have some problems (see the archive link below), it did demonstrate the problem and helped kickstart the fix presented here. * https://lkml.org/lkml/2014/9/5/66 Reported-by: hujianyang <hujianyang@huawei.com> Signed-off-by: Paul Moore <pmoore@redhat.com> Acked-by: Richard Guy Briggs <rgb@redhat.com>
2014-12-22arm64: Replace set_arch_dma_coherent_ops with arch_setup_dma_opsCatalin Marinas1-5/+6
Commit a3a60f81ee6f (dma-mapping: replace set_arch_dma_coherent_ops with arch_setup_dma_ops) changes the of_dma_configure() arch dma_ops callback to arch_setup_dma_ops but only the arch/arm code is updated. Subsequent commit 97890ba9289c (dma-mapping: detect and configure IOMMU in of_dma_configure) changes the arch_setup_dma_ops() prototype further to handle iommu. The patch makes the corresponding arm64 changes. Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Reported-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Will Deacon <will.deacon@arm.com>
2014-12-21ipmi: Fix compile issue with isspace()Corey Minyard1-0/+1
Some arches don't get ctypes.h included from these includes, so add it explicitly. Signed-off-by: Corey Minyard <cminyard@mvista.com>
2014-12-21ipmi: Finish cleanup of BMC attributesCorey Minyard1-29/+17
The previous cleanup of BMC attributes left a few holes, and if you run with lockdep debugging with a BMC with the proper attributes, you could get a warning. This patch removes all the unused attributes from the BMC structure, since they are all declared in the .data section now. It makes the attributes all static. It fixes the referencing of the attributes in a couple of cases that dynamically added the files depending on BMC information. Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: Huang Ying <ying.huang@intel.com> Tested-by: Alexei Starovoitov <ast@plumgrid.com>