1. 16 Apr, 2015 2 commits
    • Joonsoo Kim's avatar
      tracing: Fix incorrect enabling of trace events by boot cmdline · 84fce9db
      Joonsoo Kim authored
      There is a problem that trace events are not properly enabled with
      boot cmdline. The problem is that if we pass "trace_event=kmem:mm_page_alloc"
      to the boot cmdline, it enables all kmem trace events, and not just
      the page_alloc event.
      
      This is caused by the parsing mechanism. When we parse the cmdline, the buffer
      contents is modified due to tokenization. And, if we use this buffer
      again, we will get the wrong result.
      
      Unfortunately, this buffer is be accessed three times to set trace events
      properly at boot time. So, we need to handle this situation.
      
      There is already code handling ",", but we need another for ":".
      This patch adds it.
      
      Link: http://lkml.kernel.org/r/1429159484-22977-1-git-send-email-iamjoonsoo.kim@lge.com
      
      Cc: stable@vger.kernel.org # 3.19+
      Signed-off-by: default avatarJoonsoo Kim <iamjoonsoo.kim@lge.com>
      [ added missing return ret; ]
      Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
      84fce9db
    • Rabin Vincent's avatar
      tracing: Handle ftrace_dump() atomic context in graph_trace_open() · ef99b88b
      Rabin Vincent authored
      graph_trace_open() can be called in atomic context from ftrace_dump().
      Use GFP_ATOMIC for the memory allocations when that's the case, in order
      to avoid the following splat.
      
       BUG: sleeping function called from invalid context at mm/slab.c:2849
       in_atomic(): 1, irqs_disabled(): 128, pid: 0, name: swapper/0
       Backtrace:
       ..
       [<8004dc94>] (__might_sleep) from [<801371f4>] (kmem_cache_alloc_trace+0x160/0x238)
        r7:87800040 r6:000080d0 r5:810d16e8 r4:000080d0
       [<80137094>] (kmem_cache_alloc_trace) from [<800cbd60>] (graph_trace_open+0x30/0xd0)
        r10:00000100 r9:809171a8 r8:00008e28 r7:810d16f0 r6:00000001 r5:810d16e8
        r4:810d16f0
       [<800cbd30>] (graph_trace_open) from [<800c79c4>] (trace_init_global_iter+0x50/0x9c)
        r8:00008e28 r7:808c853c r6:00000001 r5:810d16e8 r4:810d16f0 r3:800cbd30
       [<800c7974>] (trace_init_global_iter) from [<800c7aa0>] (ftrace_dump+0x90/0x2ec)
        r4:810d2580 r3:00000000
       [<800c7a10>] (ftrace_dump) from [<80414b2c>] (sysrq_ftrace_dump+0x1c/0x20)
        r10:00000100 r9:809171a8 r8:808f6e7c r7:00000001 r6:00000007 r5:0000007a
        r4:808d5394
       [<80414b10>] (sysrq_ftrace_dump) from [<800169b8>] (return_to_handler+0x0/0x18)
       [<80415498>] (__handle_sysrq) from [<800169b8>] (return_to_handler+0x0/0x18)
        r8:808c8100 r7:808c8444 r6:00000101 r5:00000010 r4:84eb3210
       [<80415668>] (handle_sysrq) from [<800169b8>] (return_to_handler+0x0/0x18)
       [<8042a760>] (pl011_int) from [<800169b8>] (return_to_handler+0x0/0x18)
        r10:809171bc r9:809171a8 r8:00000001 r7:00000026 r6:808c6000 r5:84f01e60
        r4:8454fe00
       [<8007782c>] (handle_irq_event_percpu) from [<80077b44>] (handle_irq_event+0x4c/0x6c)
        r10:808c7ef0 r9:87283e00 r8:00000001 r7:00000000 r6:8454fe00 r5:84f01e60
        r4:84f01e00
       [<80077af8>] (handle_irq_event) from [<8007aa28>] (handle_fasteoi_irq+0xf0/0x1ac)
        r6:808f52a4 r5:84f01e60 r4:84f01e00 r3:00000000
       [<8007a938>] (handle_fasteoi_irq) from [<80076dc0>] (generic_handle_irq+0x3c/0x4c)
        r6:00000026 r5:00000000 r4:00000026 r3:8007a938
       [<80076d84>] (generic_handle_irq) from [<80077128>] (__handle_domain_irq+0x8c/0xfc)
        r4:808c1e38 r3:0000002e
       [<8007709c>] (__handle_domain_irq) from [<800087b8>] (gic_handle_irq+0x34/0x6c)
        r10:80917748 r9:00000001 r8:88802100 r7:808c7ef0 r6:808c8fb0 r5:00000015
        r4:8880210c r3:808c7ef0
       [<80008784>] (gic_handle_irq) from [<80014044>] (__irq_svc+0x44/0x7c)
      
      Link: http://lkml.kernel.org/r/1428953721-31349-1-git-send-email-rabin@rab.in
      Link: http://lkml.kernel.org/r/1428957012-2319-1-git-send-email-rabin@rab.in
      
      Cc: stable@vger.kernel.org # 3.13+
      Signed-off-by: default avatarRabin Vincent <rabin@rab.in>
      Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
      ef99b88b
  2. 08 Apr, 2015 16 commits
  3. 07 Apr, 2015 5 commits
  4. 02 Apr, 2015 1 commit
  5. 30 Mar, 2015 1 commit
  6. 25 Mar, 2015 4 commits
  7. 16 Mar, 2015 1 commit
  8. 15 Mar, 2015 6 commits
    • Linus Torvalds's avatar
      Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux · 08352086
      Linus Torvalds authored
      Pull drm fix from Dave Airlie:
       "An oops snuck in in an -rc3 patch, this fixes it"
      
      * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
        [PATCH] drm/mm: Fix support 4 GiB and larger ranges
      08352086
    • Linus Torvalds's avatar
      Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux · 1ee89c51
      Linus Torvalds authored
      Pull clock framework fixes from Michael Turquette:
       "The clk fixes for 4.0-rc4 comprise three themes.
      
        First are the usual driver fixes for new regressions since v3.19.
      
        Second are fixes to the common clock divider type caused by recent
        changes to how we round clock rates.  This affects many clock drivers
        that use this common code.
      
        Finally there are fixes for drivers that improperly compared struct
        clk pointers (drivers must not deref these pointers).  While some of
        these drivers have done this for a long time, this did not cause a
        problem until we started generating unique struct clk pointers for
        every consumer.  A new function, clk_is_match was introduced to get
        these drivers working again and they are fixed up to no longer deref
        the pointers themselves"
      
      * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
        ASoC: kirkwood: fix struct clk pointer comparing
        ASoC: fsl_spdif: fix struct clk pointer comparing
        ARM: imx: fix struct clk pointer comparing
        clk: introduce clk_is_match
        clk: don't export static symbol
        clk: divider: fix calculation of initial best divider when rounding to closest
        clk: divider: fix selection of divider when rounding to closest
        clk: divider: fix calculation of maximal parent rate for a given divider
        clk: divider: return real rate instead of divider value
        clk: qcom: fix platform_no_drv_owner.cocci warnings
        clk: qcom: fix platform_no_drv_owner.cocci warnings
        clk: qcom: Add PLL4 vote clock
        clk: qcom: lcc-msm8960: Fix PLL rate detection
        clk: qcom: Fix slimbus n and m val offsets
        clk: ti: Fix FAPLL parent enable bit handling
      1ee89c51
    • Krzysztof Kolasa's avatar
      [PATCH] drm/mm: Fix support 4 GiB and larger ranges · 046d669c
      Krzysztof Kolasa authored
      bad argument if(tmp)... in check_free_hole
      
      fix oops: kernel BUG at drivers/gpu/drm/drm_mm.c:305!
      
      [airlied: excellent, this was my task for today].
      Signed-off-by: default avatarKrzysztof Kolasa <kkolasa@winsoft.pl>
      Reviewed-by: default avatarChris wilson <chris@chris-wilson.co.uk>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      046d669c
    • Linus Torvalds's avatar
      Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc · 6981e2af
      Linus Torvalds authored
      Pull ARM SoC fixes from Arnd Bergmann:
       "This is a rather unpleasantly large set of bug fixes for arm-soc, Most
        of them because of cross-tree dependencies for Exynos where we should
        have figured out the right path to merge things before the merge
        window, and then the maintainer being unable to sort things out in
        time during a business trip.
      
        The other changes contained here are the usual collection:
      
        MAINTAINERS file updates
         - Gregory Clement is now a co-maintainer for the legacy Marvell EBU
           platforms
         - A MAINTAINERS entry for the Freescale Vybrid platform that was
           added last year
         - Matt Porter no longer works as a maintainer on Broadcom SoCs
      
        Build-time issues
         - A compile-time error for at91
         - Several minor DT fixes on at91, imx, exynos, socfpga, and omap
         - The new digicolor platform was not correctly enabled at all
      
        Configuration issues
         - Two defconfig fix for regressions using USB on versatile express
           and on OMAP3
         - Enabling all 8 CPUs on Allwinner/SUNxi
         - Enabling the new STiH410 platform to be usable
      
        Bug fixes in platform code
         - A missing barrier for socfpga
         - Fixing LPDDR1 self-refresh mode on at91
         - Fixing RTC interrupt numbers on Exynos3250
         - Fixing a cache-coherency issues in CPU power-down on Exynos5
         - Multiple small OMAP power management fixes"
      
      * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (69 commits)
        MAINTAINERS: Add myself as co-maintainer to the legacy support of the mvebu SoCs
        ARM: at91: pm_slowclock: fix the compilation error
        ARM: at91/dt: fix USB high-speed clock to select UTMI
        ARM: at91/dt: fix at91 udc compatible strings
        ARM: at91/dt: declare matrix node as a syscon device
        ARM: vexpress: update CONFIG_USB_ISP1760 option
        ARM: digicolor: add the machine directory to Makefile
        ARM: STi: Add STiH410 SoC support
        MAINTAINERS: add Freescale Vybrid SoC
        MAINTAINERS: Remove self as ARM mach-bcm co-maintainer
        ARM: imx6sl-evk: set swbst_reg as vbus's parent reg
        ARM: imx6qdl-sabresd: set swbst_reg as vbus's parent reg
        ARM: at91/dt: at91sam9261: fix clocks and clock-names in udc definition
        ARM: OMAP2+: Fix wl12xx on dm3730-evm with mainline u-boot
        ARM: OMAP: enable TWL4030_USB in omap2plus_defconfig
        ARM: dts: dra7x-evm: avoid possible contention while muxing on CAN lines
        ARM: dts: dra7x-evm: Don't use dcan1_rx.gpio1_15 in DCAN pinctrl
        ARM: dts: am43xx: fix SLEWCTRL_FAST pinctrl binding
        ARM: dts: am33xx: fix SLEWCTRL_FAST pinctrl binding
        ARM: dts: OMAP5: fix polling intervals for thermal zones
        ...
      6981e2af
    • Linus Torvalds's avatar
      Merge tag 'irqchip-fixes-4.0' of git://git.infradead.org/users/jcooper/linux · 71c87bd0
      Linus Torvalds authored
      Pull irqchip fixes from Jason Cooper:
       "armada-370-xp:
         - Chained per-cpu interrupts
      
        gic{,-v3,v3-its}"
         - Various fixes for safer operation"
      
      * tag 'irqchip-fixes-4.0' of git://git.infradead.org/users/jcooper/linux:
        irqchip: gicv3-its: Support safe initialization
        irqchip: gicv3-its: Define macros for GITS_CTLR fields
        irqchip: gicv3-its: Add limitation to page order
        irqchip: gicv3-its: Use 64KB page as default granule
        irqchip: gicv3-its: Zero itt before handling to hardware
        irqchip: gic-v3: Fix out of bounds access to cpu_logical_map
        irqchip: gic: Fix unsafe locking reported by lockdep
        irqchip: gicv3-its: Fix unsafe locking reported by lockdep
        irqchip: gicv3-its: Iterate over PCI aliases to generate ITS configuration
        irqchip: gicv3-its: Allocate enough memory for the full range of DeviceID
        irqchip: gicv3-its: Fix ITS CPU init
        irqchip: armada-370-xp: Fix chained per-cpu interrupts
      71c87bd0
    • Jason Cooper's avatar
      aaa95f74
  9. 14 Mar, 2015 4 commits