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2014-03-20x86, vdso: Finish removing VDSO32_PRELINKAndy Lutomirski
It's a declaration of a nonexistent symbol. We can get rid of the 64-bit versions, too, but that's more intrusive. Signed-off-by: Andy Lutomirski <luto@amacapital.net> Cc: Stefani Seibold <stefani@seibold.net> Link: http://lkml.kernel.org/r/2ce2ce18447d8a0b78d44a278a066b6c0af06b32.1395366931.git.luto@amacapital.net Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2014-03-20x86, vdso: Move more vdso definitions into vdso.hAndy Lutomirski
This fixes the Xen build and gets rid of a silly header file. Signed-off-by: Andy Lutomirski <luto@amacapital.net> Cc: Stefani Seibold <stefani@seibold.net> Link: http://lkml.kernel.org/r/1df77311795aff75f5742c787d277518314a38d3.1395366931.git.luto@amacapital.net Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2014-03-20x86, cpu: Add forcepae parameter for booting PAE kernels on PAE-disabled ↵Chris Bainbridge
Pentium M Many Pentium M systems disable PAE but may have a functionally usable PAE implementation. This adds the "forcepae" parameter which bypasses the boot check for PAE, and sets the CPU as being PAE capable. Using this parameter will taint the kernel with TAINT_CPU_OUT_OF_SPEC. Signed-off-by: Chris Bainbridge <chris.bainbridge@gmail.com> Link: http://lkml.kernel.org/r/20140307114040.GA4997@localhost Acked-by: Borislav Petkov <bp@suse.de> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2014-03-20Rename TAINT_UNSAFE_SMP to TAINT_CPU_OUT_OF_SPECDave Jones
Rename TAINT_UNSAFE_SMP to TAINT_CPU_OUT_OF_SPEC, so we can repurpose the flag to encompass a wider range of pushing the CPU beyond its warrany. Signed-off-by: Dave Jones <davej@fedoraproject.org> Link: http://lkml.kernel.org/r/20140226154949.GA770@redhat.com Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2014-03-20x86: Load the 32-bit vdso in place, just like the 64-bit vdsosAndy Lutomirski
This replaces a decent amount of incomprehensible and buggy code with much more straightforward code. It also brings the 32-bit vdso more in line with the 64-bit vdsos, so maybe someday they can share even more code. This wastes a small amount of kernel .data and .text space, but it avoids a couple of allocations on startup, so it should be more or less a wash memory-wise. Signed-off-by: Andy Lutomirski <luto@amacapital.net> Cc: Stefani Seibold <stefani@seibold.net> Link: http://lkml.kernel.org/r/b8093933fad09ce181edb08a61dcd5d2592e9814.1395352498.git.luto@amacapital.net Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
2014-03-21ARM: EXYNOS: Fix compilation error in cpuidle.cTomasz Figa
The big series refactoring Exynos suspend to RAM handling missed the cpuidle driver that is disabled in exynos_defconfig, leaving it including old mach/pm_core.h header and using old s3c_cpu_resume symbol instead of new exynos_cpu_resume, resulting in compilation failures with CONFIG_ARCH_EXYNOS and CONFIG_CPU_IDLE enabled. This patch fixes that silly mistake and performs necessary modification to arhc/arm/exynos/cpuidle.c to make it compile again. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: S5P64X0: Explicitly include linux/serial_s3c.h in mach/pm-core.hTomasz Figa
This patch fixes compilation failure due to missing explicit inclusion of linux/serial_s3c.h in mach/pm-core.h, which contains definitions required for further code in this header. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-20ARM: tegra: fix Dalmore pinctrl configurationStephen Warren
Remove some entries from Dalmore's device tree that attempt to set some options which aren't supported for the drive_gma pin group. Signed-off-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-20Merge tag 'tegra-for-3.15-defconfig' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/boards Merge "ARM: tegra: defconfig updates for 3.15" from Stephen Warren: The following options are enabled: - ams AS3722 is used as system PMIC for Tegra124 based Venice2. - NXP PCA9546 is used in Cardhu Tegra30 board to connect to 3 cameras. - GSPCA to support the webcam on Venice2. - Allocate 64 MiB for CMA by default; the default 16MiB is not enough for the majority of use-cases. This can still be overridden by the cma command-line option. * tag 'tegra-for-3.15-defconfig' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: ARM: tegra: defconfig updates Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-20Merge tag 'tegra-for-3.15-dt' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/dt Merge "ARM: tegra: device tree changes for 3.15" from Stephen Warren: This enables: - host1x and eDP support on Tegra124. - LCD panel support for a few Tegra20 devices and Venice2. - Enables power down, SPI flash, and USB on Venice2. - Documents which Dalmore revision is supported. - Adds an I2C bus mux to Cardhu. Additionally, Tegra124 is converted to use #address-cells=<2> since the HW suports more than 32-bits of address space, and various cleanups are included. * tag 'tegra-for-3.15-dt' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: (21 commits) ARM: dts: tegra: add PCIe interrupt mapping properties ARM: tegra: use 2 address cells for Tegra124 DT ARM: tegra: Rename as3722 node to pmic ARM: tegra: Fix whitespace around '=' ARM: tegra: Enable USB on Venice2 ARM: tegra: Add Tegra124 USB support ARM: tegra: Enable eDP for Venice2 ARM: tegra: Add Tegra124 eDP support ARM: tegra: Add Tegra124 host1x support ARM: tegra: Hook up SDMMC3 power-supply on Venice2 ARM: tegra: Overhaul Venice2 regulators ARM: tegra: Combine VBUS enable pins into one node ARM: tegra: Use "disabled" for status property ARM: tegra: add SPI flash to Venice2 DT ARM: tegra: enable PCA9546 on Cardhu ARM: tegra: enable LCD panel on Ventana ARM: tegra: enable LCD panel on Seaboard ARM: tegra: add system-power-controller property for PMIC node ARM: tegra: document which Dalmore revisions are supported ARM: tegra: Properly sort clocks property ... Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-20Merge tag 'tegra-for-3.15-soc' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/soc Merge "ARM: tegra: core SoC changes for 3.15" from Stephen Warren: A couple of minor fixes, plus the removal of the EMC scaling driver, which hasn't been active since we converted clocks to device tree. * tag 'tegra-for-3.15-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: ARM: tegra: Export I/O rail functions ARM: tegra: remove tegra EMC scaling driver ARM: tegra: don't timeout if CPU is powergated Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-20Merge tag 'tegra-for-3.15-tf' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux into next/soc Merge "ARM: tegra: Trusted Foundations work for 3.15" from Stephen Warren: This pull request contains a number of cleanups and enhancements for the Trusted Foundations firmware used on production Tegra SoCs. The changes allow kernels without TF support to run on HW that uses TF, albeit with reduced functionality, and also fix the cpuidle feature. * tag 'tegra-for-3.15-tf' of git://git.kernel.org/pub/scm/linux/kernel/git/tegra/linux: ARM: tegra: cpuidle: use firmware for power down ARM: trusted_foundations: implement prepare_idle() ARM: firmware: add prepare_idle() operation ARM: firmware: enable Trusted Foundations by default ARM: trusted_foundations: fallback when TF support is missing ARM: trusted_foundations: fix vendor prefix typos Signed-off-by: Olof Johansson <olof@lixom.net>
2014-03-20ARM: dts: keystone: use common "ti,keystone" compatible instead of -evmIvan Khoronzhuk
As suggested by Olof Johansson at http://www.spinics.net/lists/arm-kernel/msg314009.html. It be better just keeping a "ti,keystone" top-level compatible and just using that to probe. If so we don't have to touch the file for new boards in the future. So use common "ti,keystone" compatible in keystone.c for all boards. Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Cc: Olof Johansson <olof@lixom.net> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-03-20ARM: dts: k2hk-evm: set ubifs partition size for 512M NANDMurali Karicheri
The UBIFS partition size was incorrectly defined as for 128M NAND, but on k2hk-evm installed NAND flash size is 512M. Hence, correct it. Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Ivan Khoronzhuk <ivan.khoronzhuk@ti.com> Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
2014-03-21ARM: EXYNOS: Remove hardware.h fileSachin Kamat
This is a dummy placeholder file. Delete it. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Remove hardware.h inclusionSachin Kamat
The contents of this header file are not referenced anywhere in the included .c files except in devs.c. Remove its inclusion. For devs.c, explicitly include sizes.h header for SZ_* macros. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: S3C24XX: Remove invalid code from hardware.hSachin Kamat
Remove the code that is not referenced anywhere. While at it also remove incorrect file path. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21dt-bindings: clock: Move exynos-audss-clk.h to dt-bindings/clockTushar Behera
Most of the clock related dt-binding header files are located in dt-bindings/clock folder. It would be good to keep all the similar header files at a single location. Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Reviewed-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: dts: Keep some essential LDOs enabled for arndale-octa boardTushar Behera
LDO3 and LDO23 need to be enabled in order for soft-reset to work. Additionally LDO9 needs to be enabled for USB operations. Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: dts: Disable MDMA1 node for arndale-octa boardTushar Behera
MDMA1 can support both secure and non-secure AXI transactions. When this is enabled in the kernel for boards that run in secure mode, we get imprecise external aborts causing the kernel to oops. Unhandled fault: imprecise external abort (0x1406) at 0x00000000 Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007 Suggested-by: Javi Merino <javi.merino@arm.com> Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Tested-by: Javi Merino <javi.merino@arm.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: S3C64XX: Fix build for implicit serial_s3c.h inclusionMark Brown
Some very recent change appears to have removed an implicit inclusion of serial_s3c.h causing build failures due to references to UART registers in the serial port restore code in next-20140318. Include it explicitly to fix the build. Signed-off-by: Mark Brown <broonie@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: EXYNOS: Allow wake-up using GIC interruptsTomasz Figa
This patch restores the ability to receive wake-up events from internal GIC interrupts, e.g. RTC tick or alarm interrupts. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: EXYNOS: Stop using legacy Samsung PM codeTomasz Figa
Since Exynos SoCs does not follow most of the semantics of older SoCs when configuring the system to enter sleep, there is no reason to rely on the legacy Samsung PM core anymore. This patch adds local Exynos suspend ops and removes all the code left unnecessary. As a side effect, suspend support on Exynos becomes multiplatform-friendly. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: EXYNOS: Remove PM initcalls and useless indirectionTomasz Figa
This patch simplifies Exynos PM initialization and makes it multiplatform friendly by replacing initcalls used originally to invoke all the initialization code with explicit function calls. In addition, an useless subsys_interface is removed, as all its .add_dev callback did was setting two function pointers. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: EXYNOS: Fix abuse of CONFIG_PMTomasz Figa
CONFIG_PM means that at least one of CONFIG_PM_SLEEP and CONFIG_PM_RUNTIME is enabled, while multiple entries in mach-exynos/Kconfig abused it to enable sleep- and runtime-specific functionality. This patch fixes this abuse by replacing dependencies on CONFIG_PM with appropriate dependencies on either CONFIG_PM_SLEEP or CONFIG_PM_RUNTIME, whichever is appropriate. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Move s3c_pm_check_* prototypes to plat/pm-common.hTomasz Figa
To allow using Samsung PM memory check helpers on platforms that do not use the legacy Samsung PM core, this patch moves prototypes of relevant functions to plat/pm-common.h header. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Move common save/restore helpers to separate fileTomasz Figa
To separate legacy PM code from generic helpers, this patch moves the generic register save/restore helpers to a new file called pm-common.c that is compiled always when CONFIG_PM_SLEEP is enabled, to allow platforms that do not want to use the legacy PM code use the generic helpers. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Move Samsung PM debug code into separate fileTomasz Figa
Not all Samsung SoC platforms are going to use the legacy Samsung PM code enabled by CONFIG_SAMSUNG_PM_DEBUG. To allow using Samsung PM debug helpers on such platforms, related code is moved to separate file and a plat/pm-common.h header is added to separate legacy and generic code. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Consolidate PM debug functionsTomasz Figa
This patch removes one-line functions that was used just to pass constant arguments to lower level functions. After previous patches the need for those constants has been eliminated, so the main functions can be called directly. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Use debug_ll_addr() to get UART base addressTomasz Figa
This patch modifies Samsung PM debug helpers to use a multiplatform friendly way of getting base address of debug UART port, so instead of using a per-mach static macro, a generic debug_ll_addr() helper is used. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Save UART DIVSLOT register based on SoC typeTomasz Figa
The only SoC that does not have DIVSLOT register is S3C2410, so instead of exporting a variable for platforms to set if DIVSLOT register should be preserved, it's enough to simply check whether we are running on a S3C2410 instead. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Add soc_is_s3c2410() helperTomasz Figa
Due to the S3C2410 SoC being quite different from other S3C24xx SoCs in some aspects, such as availability of DIVSLOT register in its UART blocks, there is a need sometimes to check whether we are running on this SoC, not just the S3C24xx series. This patch adds soc_is_s3c2410() helper function for this purpose. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: EXYNOS: Do not resume l2x0 if not enabled before suspendTomasz Figa
Trying to resume l2x0 if it was not enabled before suspend leads to system crash. This patch prevents this by checking if l2x0_regs_phys is a valid pointer to l2x0 context data saved on initialization. Signed-off-by: Tomasz Figa <t.figa@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21Merge branch 'v3.15-next/cleanup-samsung-2' into v3.15-next/s2r-pm-samsung-2Kukjin Kim
2014-03-20Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linusLinus Torvalds
Pull MIPS fixes from Ralf Baechle: "Another set of five fixes. The most interesting one is a fix for race condition in the local_irq_disable() implementation used by .S code for pre-MIPS R2 processors only. It leaves a race that's hard but not impossible to hit; the others fairly obvious" * 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: MIPS: Make local_irq_disable macro safe for non-Mipsr2 MIPS: Octeon: Fix warning in of_device_alloc on cn3xxx MIPS: ftrace: Tweak safe_load()/safe_store() macros MIPS: BCM47XX: Check all (32) GPIOs when looking for a pin MIPS: Fix possible build error with transparent hugepages enabled
2014-03-20arm64: Fix __range_ok macroChristopher Covington
Without this, the following scenario is incorrectly determined to be invalid. addr 0x7f_ffffe000 size 8192 addr_limit 0x80_00000000 This behavior was observed while trying to vmsplice the stack as part of a CRIU dump of a process on a system started with the norandmaps kernel parameter. Signed-off-by: Christopher Covington <cov@codeaurora.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2014-03-21ARM: dts: Update Exynos DT files with generic compatible stringsSachin Kamat
Add generic compatible strings to the respective board DT files. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: EXYNOS: Add generic compatible stringsSachin Kamat
Add generic compatible strings for Exynos4 and 5 platforms so that future SoCs can use them if there is nothing extra/specific to be differentiated. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: EXYNOS: Consolidate exynos4 and exynos5 machine filesSachin Kamat
Since there is very little difference between these two files, they can be easily combined into one with necessary SoC checks. While at it also merge the common.c file into this as it does not have any other users. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: EXYNOS: Consolidate CPU init codeSachin Kamat
cpu_table was used to distinguish between different Exynos4 and 5 SoCs and based on the type do the initialization and io mapping. exynos_init is dummy and no longer needed as we do a DT based booting. By having a common io mapping function we can get rid of the whole table and avoid populating it for every SoC. Tested on Exynos4210, 5250 and 5420 based boards. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Tested-by: Tomasz Figa <t.figa@samsung.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Introduce generic Exynos4 and 5 helpersSachin Kamat
Add helpers to check for Exynos4 and 5 family of SoCs. This will eliminate comparing long list of SoCs and make code simpler. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: EXYNOS: Add support to reserve memory for MFC-v7Sachin Kamat
Reserve memory for MFC-v7 IP. Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-21ARM: SAMSUNG: Reorganize calls to reserve memory for MFCTushar Behera
Reorganize code so that "plat/mfc.h" is no more referred from mach-exynos directory. Signed-off-by: Tushar Behera <tushar.behera@linaro.org> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
2014-03-20audit: use uapi/linux/audit.h for AUDIT_ARCH declarationsEric Paris
The syscall.h headers were including linux/audit.h but really only needed the uapi/linux/audit.h to get the requisite defines. Switch to the uapi headers. Signed-off-by: Eric Paris <eparis@redhat.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mips@linux-mips.org Cc: linux-s390@vger.kernel.org Cc: x86@kernel.org
2014-03-20syscall_get_arch: remove useless function argumentsEric Paris
Every caller of syscall_get_arch() uses current for the task and no implementors of the function need args. So just get rid of both of those things. Admittedly, since these are inline functions we aren't wasting stack space, but it just makes the prototypes better. Signed-off-by: Eric Paris <eparis@redhat.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-mips@linux-mips.org Cc: linux390@de.ibm.com Cc: x86@kernel.org Cc: linux-kernel@vger.kernel.org Cc: linux-s390@vger.kernel.org Cc: linux-arch@vger.kernel.org
2014-03-20audit: Add CONFIG_HAVE_ARCH_AUDITSYSCALLAKASHI Takahiro
Currently AUDITSYSCALL has a long list of architecture depencency: depends on AUDIT && (X86 || PARISC || PPC || S390 || IA64 || UML || SPARC64 || SUPERH || (ARM && AEABI && !OABI_COMPAT) || ALPHA) The purpose of this patch is to replace it with HAVE_ARCH_AUDITSYSCALL for simplicity. Signed-off-by: AKASHI Takahiro <takahiro.akashi@linaro.org> Acked-by: Will Deacon <will.deacon@arm.com> (arm) Acked-by: Richard Guy Briggs <rgb@redhat.com> (audit) Acked-by: Matt Turner <mattst88@gmail.com> (alpha) Acked-by: Michael Ellerman <mpe@ellerman.id.au> (powerpc) Signed-off-by: Eric Paris <eparis@redhat.com>
2014-03-20alpha: Enable system-call auditing support.蔡正龙
Signed-off-by: Zhenglong.cai <zhenglong.cai@cs2c.com.cn> Signed-off-by: Matt Turner <mattst88@gmail.com>
2014-03-20MIPS: Make local_irq_disable macro safe for non-Mipsr2Jim Quinlan
For non-mipsr2 processors, the local_irq_disable contains an mfc0-mtc0 pair with instructions inbetween. With preemption enabled, this sequence may get preempted and effect a stale value of CP0_STATUS when executing the mtc0 instruction. This commit avoids this scenario by incrementing the preempt count before the mfc0 and decrementing it after the mtc9. [ralf@linux-mips.org: This patch is sorting out the part that were missed by e97c5b6098 [MIPS: Make irqflags.h functions preempt-safe for non-mipsr2 cpus.] I also re-enabled the inclusion of <asm/asm-offsets.h> at the top of <asm/asmmacro.h>]. Signed-off-by: Jim Quinlan <jim2101024@gmail.com> Cc: linux-mips@linux-mips.org Cc: cernekee@gmail.com Patchwork: https://patchwork.linux-mips.org/patch/6164/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-03-20arm64, debug-monitors: Fix CPU hotplug callback registrationSrivatsa S. Bhat
Subsystems that want to register CPU hotplug callbacks, as well as perform initialization for the CPUs that are already online, often do it as shown below: get_online_cpus(); for_each_online_cpu(cpu) init_cpu(cpu); register_cpu_notifier(&foobar_cpu_notifier); put_online_cpus(); This is wrong, since it is prone to ABBA deadlocks involving the cpu_add_remove_lock and the cpu_hotplug.lock (when running concurrently with CPU hotplug operations). Instead, the correct and race-free way of performing the callback registration is: cpu_notifier_register_begin(); for_each_online_cpu(cpu) init_cpu(cpu); /* Note the use of the double underscored version of the API */ __register_cpu_notifier(&foobar_cpu_notifier); cpu_notifier_register_done(); Fix the debug-monitors code in arm64 by using this latter form of callback registration. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Ingo Molnar <mingo@kernel.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2014-03-20arm64, hw_breakpoint.c: Fix CPU hotplug callback registrationSrivatsa S. Bhat
Subsystems that want to register CPU hotplug callbacks, as well as perform initialization for the CPUs that are already online, often do it as shown below: get_online_cpus(); for_each_online_cpu(cpu) init_cpu(cpu); register_cpu_notifier(&foobar_cpu_notifier); put_online_cpus(); This is wrong, since it is prone to ABBA deadlocks involving the cpu_add_remove_lock and the cpu_hotplug.lock (when running concurrently with CPU hotplug operations). Instead, the correct and race-free way of performing the callback registration is: cpu_notifier_register_begin(); for_each_online_cpu(cpu) init_cpu(cpu); /* Note the use of the double underscored version of the API */ __register_cpu_notifier(&foobar_cpu_notifier); cpu_notifier_register_done(); Fix the hw-breakpoint code in arm64 by using this latter form of callback registration. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Lorenzo Pieralisi <Lorenzo.Pieralisi@arm.com> Cc: Ingo Molnar <mingo@kernel.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>