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2015-07-13ARM/locomo: Consolidate chained IRQ handler install/removeThomas Gleixner
Chained irq handlers usually set up handler data as well. We now have a function to set both under irq_desc->lock. Replace the two calls with one. Search and conversion was done with coccinelle. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Russell King <linux+kernel@arm.linux.org.uk> Cc: linux-arm-kernel@lists.infradead.org
2015-07-13ARM/orion: Consolidate chained IRQ handler install/removeThomas Gleixner
Chained irq handlers usually set up handler data as well. We now have a function to set both under irq_desc->lock. Replace the two calls with one. Search and conversion was done with coccinelle. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Julia Lawall <Julia.Lawall@lip6.fr> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Cc: linux-arm-kernel@lists.infradead.org
2015-07-11Merge branch 'i2c/for-current' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux Pull i2c fixes from Wolfram Sang: "Mostly slight adjusments for new drivers, but also one core fix for which finally the dependencies are now available as well" * 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: i2c: Mark instantiated device nodes with OF_POPULATE i2c: jz4780: Fix return value if probe fails i2c: xgene-slimpro: Fix missing mbox_free_channel call in probe error path i2c: I2C_MT65XX should depend on HAS_DMA
2015-07-11Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input Pull input fixes from Dmitry Torokhov: "A fix (revert) for a recent regression in Synaptics driver and a fix for Elan i2c touchpad driver" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Revert "Input: synaptics - allocate 3 slots to keep stability in image sensors" Input: elan_i2c - change the hover event from MT to ST
2015-07-11Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "A small set of fixes for problems found by smatch in new drivers that we added this rc and a handful of driver fixes that came in during the merge window" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: drivers: clk: st: Incorrect register offset used for lock_status clk: mediatek: mt8173: Fix enabling of critical clocks drivers: clk: st: Fix mux bit-setting for Cortex A9 clocks drivers: clk: st: Add CLK_GET_RATE_NOCACHE flag to clocks drivers: clk: st: Fix flexgen lock init drivers: clk: st: Fix FSYN channel values drivers: clk: st: Remove unused code clk: qcom: Use parent rate when set rate to pixel RCG clock clk: at91: do not leak resources clk: stm32: Fix out-by-one error path in the index lookup clk: iproc: fix bit manipulation arithmetic clk: iproc: fix memory leak from clock name
2015-07-11Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "A bunch of fixes for radeon, intel, omap and one amdkfd fix. Radeon fixes are all over, but it does fix some cursor corruption across suspend/resume. i915 should fix the second warn you were seeing, so let us know if not. omap is a bunch of small fixes" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: (28 commits) drm/radeon: disable vce init on cayman (v2) drm/amdgpu: fix timeout calculation drm/radeon: check if BO_VA is set before adding it to the invalidation list drm/radeon: allways add the VM clear duplicate Revert "Revert "drm/radeon: dont switch vt on suspend"" drm/radeon: Fold radeon_set_cursor() into radeon_show_cursor() drm/radeon: unpin cursor BOs on suspend and pin them again on resume (v2) drm/radeon: Clean up reference counting and pinning of the cursor BOs drm/amdkfd: validate pdd where it acquired first Revert "drm/i915: Allocate context objects from stolen" drm/i915: Declare the swizzling unknown for L-shaped configurations drm/radeon: fix underflow in r600_cp_dispatch_texture() drm/radeon: default to 2048 MB GART size on SI+ drm/radeon: fix HDP flushing drm/radeon: use RCU query for GEM_BUSY syscall drm/amdgpu: Handle irqs only based on irq ring, not irq status regs. drm/radeon: Handle irqs only based on irq ring, not irq status regs. drm/i915: Use crtc_state->active in primary check_plane func drm/i915: Check crtc->active in intel_crtc_disable_planes drm/i915: Restore all GGTT VMAs on resume ...
2015-07-11Merge branch 'for-linus2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security Pull selinux fixes from James Morris. * 'for-linus2' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: selinux: fix mprotect PROT_EXEC regression caused by mm change selinux: don't waste ebitmap space when importing NetLabel categories
2015-07-11Merge branch 'for-linus-4.2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs Pull btrfs fixes from Chris Mason: "This is an assortment of fixes. Most of the commits are from Filipe (fsync, the inode allocation cache and a few others). Mark kicked in a series fixing corners in the extent sharing ioctls, and everyone else fixed up on assorted other problems" * 'for-linus-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: Btrfs: fix wrong check for btrfs_force_chunk_alloc() Btrfs: fix warning of bytes_may_use Btrfs: fix hang when failing to submit bio of directIO Btrfs: fix a comment in inode.c:evict_inode_truncate_pages() Btrfs: fix memory corruption on failure to submit bio for direct IO btrfs: don't update mtime/ctime on deduped inodes btrfs: allow dedupe of same inode btrfs: fix deadlock with extent-same and readpage btrfs: pass unaligned length to btrfs_cmp_data() Btrfs: fix fsync after truncate when no_holes feature is enabled Btrfs: fix fsync xattr loss in the fast fsync path Btrfs: fix fsync data loss after append write Btrfs: fix crash on close_ctree() if cleaner starts new transaction Btrfs: fix race between caching kthread and returning inode to inode cache Btrfs: use kmem_cache_free when freeing entry in inode cache Btrfs: fix race between balance and unused block group deletion btrfs: add error handling for scrub_workers_get() btrfs: cleanup noused initialization of dev in btrfs_end_bio() btrfs: qgroup: allow user to clear the limitation on qgroup
2015-07-11Merge tag 'armsoc-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Kevin Hilman: "A fairly random colletion of fixes based on -rc1 for OMAP, sunxi and prima2 as well as a few arm64-specific DT fixes. This series also includes a late to support a new Allwinner (sunxi) SoC, but since it's rather simple and isolated to the platform-specific code, it's included it for this -rc" * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: arm64: dts: add device tree for ARM SMM-A53x2 on LogicTile Express 20MG arm: dts: vexpress: add missing CCI PMU device node to TC2 arm: dts: vexpress: describe all PMUs in TC2 dts GICv3: Add ITS entry to THUNDER dts arm64: dts: Add poweroff button device node for APM X-Gene platform ARM: dts: am4372.dtsi: disable rfbi ARM: dts: am57xx-beagle-x15: Provide supply for usb2_phy2 ARM: dts: am4372: Add emif node Revert "ARM: dts: am335x-boneblack: disable RTC-only sleep" ARM: sunxi: Enable simplefb in the defconfig ARM: Remove deprecated symbol from defconfig files ARM: sunxi: Add Machine support for A33 ARM: sunxi: Introduce Allwinner H3 support Documentation: sunxi: Update Allwinner SoC documentation ARM: prima2: move to use REGMAP APIs for rtciobrg ARM: dts: atlas7: add pinctrl and gpio descriptions ARM: OMAP2+: Remove unnessary return statement from the void function, omap2_show_dma_caps memory: omap-gpmc: Fix parsing of devices
2015-07-10Merge branch 'parisc-4.2-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc fixes from Helge Deller: "We have one important patch from Dave Anglin and myself which fixes PTE/TLB race conditions which caused random segmentation faults on our debian buildd servers, and one patch from Alex Ivanov which speeds up the graphical text console on the STI framebuffer driver" * 'parisc-4.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Fix some PTE/TLB race conditions and optimize __flush_tlb_range based on timing results stifb: Implement hardware accelerated copyarea
2015-07-11Merge branch 'upstream' of git://git.infradead.org/users/pcmoore/selinux ↵James Morris
into for-linus2
2015-07-10selinux: fix mprotect PROT_EXEC regression caused by mm changeStephen Smalley
commit 66fc13039422ba7df2d01a8ee0873e4ef965b50b ("mm: shmem_zero_setup skip security check and lockdep conflict with XFS") caused a regression for SELinux by disabling any SELinux checking of mprotect PROT_EXEC on shared anonymous mappings. However, even before that regression, the checking on such mprotect PROT_EXEC calls was inconsistent with the checking on a mmap PROT_EXEC call for a shared anonymous mapping. On a mmap, the security hook is passed a NULL file and knows it is dealing with an anonymous mapping and therefore applies an execmem check and no file checks. On a mprotect, the security hook is passed a vma with a non-NULL vm_file (as this was set from the internally-created shmem file during mmap) and therefore applies the file-based execute check and no execmem check. Since the aforementioned commit now marks the shmem zero inode with the S_PRIVATE flag, the file checks are disabled and we have no checking at all on mprotect PROT_EXEC. Add a test to the mprotect hook logic for such private inodes, and apply an execmem check in that case. This makes the mmap and mprotect checking consistent for shared anonymous mappings, as well as for /dev/zero and ashmem. Cc: <stable@vger.kernel.org> # 4.1.x Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov> Signed-off-by: Paul Moore <pmoore@redhat.com>
2015-07-10Merge tag 'arm64-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes and clean-up from Catalin Marinas: - ACPI fix when checking the validity of the GICC MADT subtable - handle debug exceptions in the el*_inv exception entries - remove pointless register assignment in two compat syscall wrappers - unnecessary include path - defconfig update * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: entry32: remove pointless register assignment arm64: entry: handle debug exceptions in el*_inv arm64: Keep the ARM64 Kconfig selects sorted ACPI / ARM64 : use the new BAD_MADT_GICC_ENTRY macro ACPI / ARM64: add BAD_MADT_GICC_ENTRY() macro arm64: defconfig: Add Ceva ahci to the defconfig arm64: remove another unnecessary libfdt include path
2015-07-10parisc: Fix some PTE/TLB race conditions and optimize __flush_tlb_range ↵John David Anglin
based on timing results The increased use of pdtlb/pitlb instructions seemed to increase the frequency of random segmentation faults building packages. Further, we had a number of cases where TLB inserts would repeatedly fail and all forward progress would stop. The Haskell ghc package caused a lot of trouble in this area. The final indication of a race in pte handling was this syslog entry on sibaris (C8000): swap_free: Unused swap offset entry 00000004 BUG: Bad page map in process mysqld pte:00000100 pmd:019bbec5 addr:00000000ec464000 vm_flags:00100073 anon_vma:0000000221023828 mapping: (null) index:ec464 CPU: 1 PID: 9176 Comm: mysqld Not tainted 4.0.0-2-parisc64-smp #1 Debian 4.0.5-1 Backtrace: [<0000000040173eb0>] show_stack+0x20/0x38 [<0000000040444424>] dump_stack+0x9c/0x110 [<00000000402a0d38>] print_bad_pte+0x1a8/0x278 [<00000000402a28b8>] unmap_single_vma+0x3d8/0x770 [<00000000402a4090>] zap_page_range+0xf0/0x198 [<00000000402ba2a4>] SyS_madvise+0x404/0x8c0 Note that the pte value is 0 except for the accessed bit 0x100. This bit shouldn't be set without the present bit. It should be noted that the madvise system call is probably a trigger for many of the random segmentation faults. In looking at the kernel code, I found the following problems: 1) The pte_clear define didn't take TLB lock when clearing a pte. 2) We didn't test pte present bit inside lock in exception support. 3) The pte and tlb locks needed to merged in order to ensure consistency between page table and TLB. This also has the effect of serializing TLB broadcasts on SMP systems. The attached change implements the above and a few other tweaks to try to improve performance. Based on the timing code, TLB purges are very slow (e.g., ~ 209 cycles per page on rp3440). Thus, I think it beneficial to test the split_tlb variable to avoid duplicate purges. Probably, all PA 2.0 machines have combined TLBs. I dropped using __flush_tlb_range in flush_tlb_mm as I realized all applications and most threads have a stack size that is too large to make this useful. I added some comments to this effect. Since implementing 1 through 3, I haven't had any random segmentation faults on mx3210 (rp3440) in about one week of building code and running as a Debian buildd. Signed-off-by: John David Anglin <dave.anglin@bell.net> Cc: stable@vger.kernel.org # v3.18+ Signed-off-by: Helge Deller <deller@gmx.de>
2015-07-10stifb: Implement hardware accelerated copyareaAlex Ivanov
This patch adds hardware assisted scrolling. The code is based upon the following investigation: https://parisc.wiki.kernel.org/index.php/NGLE#Blitter A simple 'time ls -la /usr/bin' test shows 1.6x speed increase over soft copy and 2.3x increase over FBINFO_READS_FAST (prefer soft copy over screen redraw) on Artist framebuffer. Signed-off-by: Alex Ivanov <lausgans@gmail.com> Signed-off-by: Helge Deller <deller@gmx.de>
2015-07-10Merge tag 'powerpc-4.2-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - opal-prd mmap fix from Vaidy - set kernel taint for MCEs from Daniel - alignment exception description from Anton - ppc4xx_hsta_msi build fix from Daniel - opal-elog interrupt fix from Alistair - core_idle_state race fix from Shreyas - hv-24x7 lockdep fix from Sukadev - multiple cxl fixes from Daniel, Ian, Mikey & Maninder - update MAINTAINERS to point at shared tree * tag 'powerpc-4.2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: cxl: Check if afu is not null in cxl_slbia powerpc: Update MAINTAINERS to point at shared tree powerpc/perf/24x7: Fix lockdep warning cxl: Fix off by one error allowing subsequent mmap page to be accessed cxl: Fail mmap if requested mapping is larger than assigned problem state area cxl: Fix refcounting in kernel API powerpc/powernv: Fix race in updating core_idle_state powerpc/powernv: Fix opal-elog interrupt handler powerpc/ppc4xx_hsta_msi: Include ppc-pci.h to fix reference to hose_list powerpc: Add plain English description for alignment exception oopses cxl: Test the correct mmio space before unmapping powerpc: Set the correct kernel taint on machine check errors cxl/vphb.c: Use phb pointer after NULL check powerpc/powernv: Fix vma page prot flags in opal-prd driver
2015-07-10Revert "Input: synaptics - allocate 3 slots to keep stability in image sensors"Dmitry Torokhov
This reverts commit 63c4fda3c0bb841b1aad1298fc7fe94058fc79f8 as it causes issues with detecting 3-finger taps. Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=100481 Cc: stable@vger.kernel.org Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
2015-07-10arm64: entry32: remove pointless register assignmentMark Rutland
We currently set x27 in compat_sys_sigreturn_wrapper and compat_sys_rt_sigreturn_wrapper, similarly to what we do with r8/why on 32-bit ARM, in an attempt to prevent sigreturns from being restarted. However, on arm64 we have always used pt_regs::syscallno for syscall restarting (for both native and compat tasks), and x27 is never inspected again before being overwritten in kernel_exit. This patch removes the pointless register assignments. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2015-07-10Merge tag 'omapdrm-4.2-fixes' of ↵Dave Airlie
git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-fixes omapdrm fixes for 4.2 Small fixes for omapdrm, including: * Fix packed 24 bit color formats * Ensure the planes are inside the crtc * Handle out-of-dma-memory error * tag 'omapdrm-4.2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: drm/omap: replace ALIGN(PAGE_SIZE) by PAGE_ALIGN drm/omap: fix align_pitch() for 24 bits per pixel drm/omap: fix omap_gem_put_paddr() error handling drm/omap: fix omap_framebuffer_unpin() error handling drm/omap: increase DMM transaction timeout drm/omap: check that plane is inside crtc drm/omap: return error if dma_alloc_writecombine fails
2015-07-10Merge tag 'drm-intel-fixes-2015-07-09' of ↵Dave Airlie
git://anongit.freedesktop.org/drm-intel into drm-fixes Pile of fixes for either 4.2 issues or cc: stable. This should fix the 2nd kind of WARNING Linus's been seeing, please ask him to scream if that's not the case. * tag 'drm-intel-fixes-2015-07-09' of git://anongit.freedesktop.org/drm-intel: Revert "drm/i915: Allocate context objects from stolen" drm/i915: Declare the swizzling unknown for L-shaped configurations drm/i915: Use crtc_state->active in primary check_plane func drm/i915: Check crtc->active in intel_crtc_disable_planes drm/i915: Restore all GGTT VMAs on resume drm/i915/chv: fix HW readout of the port PLL fractional divider
2015-07-10Merge tag 'drm-amdkfd-fixes-2015-07-09' of ↵Dave Airlie
git://people.freedesktop.org/~gabbayo/linux into drm-fixes A single fix so far for 4.2: - checking a pointer is not null before using it * tag 'drm-amdkfd-fixes-2015-07-09' of git://people.freedesktop.org/~gabbayo/linux: drm/amdkfd: validate pdd where it acquired first
2015-07-10Merge branch 'drm-fixes-4.2' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-fixes radeon and amdgpu fixes for 4.2. All over the place: - fix cursor corruption on resume and re-enable no VT switch on suspend - vblank fixes - fix gpuvm error messages - misc other fixes * 'drm-fixes-4.2' of git://people.freedesktop.org/~agd5f/linux: drm/radeon: disable vce init on cayman (v2) drm/amdgpu: fix timeout calculation drm/radeon: check if BO_VA is set before adding it to the invalidation list drm/radeon: allways add the VM clear duplicate Revert "Revert "drm/radeon: dont switch vt on suspend"" drm/radeon: Fold radeon_set_cursor() into radeon_show_cursor() drm/radeon: unpin cursor BOs on suspend and pin them again on resume (v2) drm/radeon: Clean up reference counting and pinning of the cursor BOs drm/radeon: fix underflow in r600_cp_dispatch_texture() drm/radeon: default to 2048 MB GART size on SI+ drm/radeon: fix HDP flushing drm/radeon: use RCU query for GEM_BUSY syscall drm/amdgpu: Handle irqs only based on irq ring, not irq status regs. drm/radeon: Handle irqs only based on irq ring, not irq status regs.
2015-07-10cxl: Check if afu is not null in cxl_slbiaDaniel Axtens
The pointer to an AFU in the adapter's list of AFUs can be null if we're in the process of removing AFUs. The afu_list_lock doesn't guard against this. Say we have 2 slices, and we're in the process of removing cxl. - We remove the AFUs in order (see cxl_remove). In cxl_remove_afu for AFU 0, we take the lock, set adapter->afu[0] = NULL, and release the lock. - Then we get an slbia. In cxl_slbia we take the lock, and set afu = adapter->afu[0], which is NULL. - Therefore our attempt to check afu->enabled will blow up. Therefore, check if afu is a null pointer before dereferencing it. Cc: stable@vger.kernel.org Signed-off-by: Daniel Axtens <dja@axtens.net> Acked-by: Michael Neuling <mikey@neuling.org> Acked-by: Ian Munsie <imunsie@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2015-07-09Merge tag 'omap-for-v4.2/fixes-rc1' of ↵Kevin Hilman
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes Merge "omap fixes against v4.2-rc1" from Tony Lindgren: Minor fixes for omaps against v4.2-rc1. Mostly just minor dts changes except for a GPMC fix to not use names for probing devices. Also a one liner clean-up to remove unecessary return from a void function. The summary for the changes being: - Fix probe for GPMC devices by reoving limitations based on device name - Remove unnecessary return from a void function - Revert beaglebone RTC sleep fix, we now have a better fix merged - Add am4372 EMIF node to fix a warning - Add am57xx-beagle-x15 power supply to fix USB2 if USB1 is disabled - Disable rfbi for am4372 as it does not have a driver * tag 'omap-for-v4.2/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: dts: am4372.dtsi: disable rfbi ARM: dts: am57xx-beagle-x15: Provide supply for usb2_phy2 ARM: dts: am4372: Add emif node Revert "ARM: dts: am335x-boneblack: disable RTC-only sleep" ARM: OMAP2+: Remove unnessary return statement from the void function, omap2_show_dma_caps memory: omap-gpmc: Fix parsing of devices
2015-07-09Merge tag 'sunxi-late-for-4.2' of ↵Kevin Hilman
https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into fixes Merge "Allwinner late changes for 4.2" from Maxime Ripard: Allwinner late changes for 4.2 A bunch of defconfig changes, and some patches to make the Allwinner H3 and A33 boot properly. * tag 'sunxi-late-for-4.2' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux: ARM: sunxi: Enable simplefb in the defconfig ARM: Remove deprecated symbol from defconfig files ARM: sunxi: Add Machine support for A33 ARM: sunxi: Introduce Allwinner H3 support Documentation: sunxi: Update Allwinner SoC documentation
2015-07-09Merge branch 'hpfs-patches' (patches from Mikulas Patocka)Linus Torvalds
Merge hpfs updates from Mikulas Patocka. Mainly fstrim support, with some minor other cleanups. These were actually sent during the merge window, but I wanted to wait for the FSTRIM compat handling cleanup before applying them. Mikulas sent that earlier today. * emailed patches from Mikulas Patocka <mikulas@twibright.com>: hpfs: hpfs_error: Remove static buffer, use vsprintf extension %pV instead hpfs: kstrdup() out of memory handling hpfs: Remove unessary cast hpfs: add fstrim support
2015-07-09hpfs: hpfs_error: Remove static buffer, use vsprintf extension %pV insteadJoe Perches
Removing unnecessary static buffers is good. Use the vsprintf %pV extension instead. Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Mikulas Patocka <mikulas@twibright.com> Cc: stable@vger.kernel.org # v2.6.36+ Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-09hpfs: kstrdup() out of memory handlingSanidhya Kashyap
There is a possibility of nothing being allocated to the new_opts in case of memory pressure, therefore return ENOMEM for such case. Signed-off-by: Sanidhya Kashyap <sanidhya.gatech@gmail.com> Signed-off-by: Mikulas Patocka <mikulas@twibright.com> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-09hpfs: Remove unessary castFiro Yang
Avoid a pointless kmem_cache_alloc() return value cast in fs/hpfs/super.c::hpfs_alloc_inode() Signed-off-by: Firo Yang <firogm@gmail.com> Signed-off-by: Mikulas Patocka <mikulas@twibright.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-09hpfs: add fstrim supportMikulas Patocka
This patch adds support for fstrim to the HPFS filesystem. Signed-off-by: Mikulas Patocka <mikulas@twibright.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-09i2c: Mark instantiated device nodes with OF_POPULATEPantelis Antoniou
Mark (and unmark) device nodes with the POPULATE flag as appropriate. This is required to avoid multi probing when using I2C and device overlays containing a mux. This patch is also more careful with the release of the adapter device which caused a deadlock with muxes, and does not break the build on !OF since the node flag accessors are not defined then. Signed-off-by: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-07-09i2c: jz4780: Fix return value if probe failsAxel Lin
Current code returns 0 if fails to read clock-frequency DT property, fix it. Also add checking return value of clk_prepare_enable and propagate return value of devm_request_irq. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-07-09Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client Pull Ceph fixes from Sage Weil: "There is a fix for CephFS and RBD when used within containers/namespaces, and a fix for the address learning the client is supposed to do when initially talking to the Ceph cluster. There are also two patches updating MAINTAINERS. One breaks out the common Ceph code shared by fs/ceph and drivers/block/rbd.c into a separate entry with the appropriate maintainers listed. The second adds a second reference to the github tree where the Ceph client development takes place (before it is pushed to korg and then to you). The goal here is to move closer to a situation where Ilya Dryomov or one of the other maintainers can push things to you if I am unavailable. Ilya has done most of the work preparing branches for upstream recently; you should not be surprised to hear from him if I am trapped in some internet-less wasteland or hit by a bus or something. In the meantime, we'll work on getting him added to the kernel web of trust" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: MAINTAINERS: add secondary tree for ceph modules MAINTAINERS: update ceph entries libceph: treat sockaddr_storage with uninitialized family as blank libceph: enable ceph in a non-default network namespace
2015-07-09i2c: xgene-slimpro: Fix missing mbox_free_channel call in probe error pathAxel Lin
Free requested mailbox channel before return error. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-07-09i2c: I2C_MT65XX should depend on HAS_DMAGeert Uytterhoeven
If NO_DMA=y: ERROR: "dma_unmap_single" [drivers/i2c/busses/i2c-mt65xx.ko] undefined! ERROR: "dma_mapping_error" [drivers/i2c/busses/i2c-mt65xx.ko] undefined! ERROR: "dma_map_single" [drivers/i2c/busses/i2c-mt65xx.ko] undefined! Add a dependency on HAS_DMA to fix this. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2015-07-09ioctl_compat: handle FITRIMMikulas Patocka
The FITRIM ioctl has the same arguments on 32-bit and 64-bit architectures, so we can add it to the list of compatible ioctls and drop it from compat_ioctl method of various filesystems. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Ted Ts'o <tytso@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-09selinux: don't waste ebitmap space when importing NetLabel categoriesPaul Moore
At present we don't create efficient ebitmaps when importing NetLabel category bitmaps. This can present a problem when comparing ebitmaps since ebitmap_cmp() is very strict about these things and considers these wasteful ebitmaps not equal when compared to their more efficient counterparts, even if their values are the same. This isn't likely to cause problems on 64-bit systems due to a bit of luck on how NetLabel/CIPSO works and the default ebitmap size, but it can be a problem on 32-bit systems. This patch fixes this problem by being a bit more intelligent when importing NetLabel category bitmaps by skipping over empty sections which should result in a nice, efficient ebitmap. Cc: stable@vger.kernel.org # 3.17 Signed-off-by: Paul Moore <pmoore@redhat.com>
2015-07-09Fix firmware loader uevent buffer NULL pointer dereferenceLinus Torvalds
The firmware class uevent function accessed the "fw_priv->buf" buffer without the proper locking and testing for NULL. This is an old bug (looks like it goes back to 2012 and commit 1244691c73b2: "firmware loader: introduce firmware_buf"), but for some reason it's triggering only now in 4.2-rc1. Shuah Khan is trying to bisect what it is that causes this to trigger more easily, but in the meantime let's just fix the bug since others are hitting it too (at least Ingo reports having seen it as well). Reported-and-tested-by: Shuah Khan <shuahkh@osg.samsung.com> Acked-by: Ming Lei <ming.lei@canonical.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-09mm: avoid setting up anonymous pages into file mappingKirill A. Shutemov
Reading page fault handler code I've noticed that under right circumstances kernel would map anonymous pages into file mappings: if the VMA doesn't have vm_ops->fault() and the VMA wasn't fully populated on ->mmap(), kernel would handle page fault to not populated pte with do_anonymous_page(). Let's change page fault handler to use do_anonymous_page() only on anonymous VMA (->vm_ops == NULL) and make sure that the VMA is not shared. For file mappings without vm_ops->fault() or shred VMA without vm_ops, page fault on pte_none() entry would lead to SIGBUS. Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Oleg Nesterov <oleg@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Willy Tarreau <w@1wt.eu> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-07-09MAINTAINERS: add secondary tree for ceph modulesSage Weil
The Ceph kernel code is primarily developed in the github tree, and only pushed to the korg tree before going to Linus. If Sage is unavailable and another maintainer needs to push something upstream, pull requests may originate from the github tree instead of Sage's korg tree. Signed-off-by: Sage Weil <sage@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2015-07-09MAINTAINERS: update ceph entriesSage Weil
- The Ceph common code is used by both fs/ceph and drivers/block/rbd. Add a separate maintainers entry. - Add Ilya as libceph maintainer and cephfs submaintainer. - Attribute Documentation/ABI/testing/sysfs-bus-rbd to rbd. - ceph-devel@vger.kernel.org should be L, not M in rbd entry. Signed-off-by: Sage Weil <sage@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2015-07-09libceph: treat sockaddr_storage with uninitialized family as blankIlya Dryomov
addr_is_blank() should return true if family is neither AF_INET nor AF_INET6. This is what its counterpart entity_addr_t::is_blank_ip() is doing and it is the right thing to do: in process_banner() we check if our address is blank and if it is "learn" it from our peer. As it is, we never learn our address and always send out a blank one. This goes way back to ceph.git commit dd732cbfc1c9 ("use sockaddr_storage; and some ipv6 support groundwork") from 2009. While at at, do not open-code ipv6_addr_any() and use INADDR_ANY constant instead of 0. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Sage Weil <sage@redhat.com>
2015-07-09libceph: enable ceph in a non-default network namespaceIlya Dryomov
Grab a reference on a network namespace of the 'rbd map' (in case of rbd) or 'mount' (in case of ceph) process and use that to open sockets instead of always using init_net and bailing if network namespace is anything but init_net. Be careful to not share struct ceph_client instances between different namespaces and don't add any code in the !CONFIG_NET_NS case. This is based on a patch from Hong Zhiguo <zhiguohong@tencent.com>. Signed-off-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Sage Weil <sage@redhat.com>
2015-07-09drm/radeon: disable vce init on cayman (v2)Alex Deucher
Cayman does not have vce. There were a few places in the shared cayman/TV code where we were trying to do vce stuff. v2: remove -ENOENT check Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-07-09drm/amdgpu: fix timeout calculationChristian König
Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
2015-07-09drm/radeon: check if BO_VA is set before adding it to the invalidation listChristian König
Otherwise we try to clear BO_VAs without an address. Fixes: https://bugs.freedesktop.org/show_bug.cgi?id=91141 Signed-off-by: Christian König <christian.koenig@amd.com> Test-by: hadack@gmx.de Tested-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-07-09drm/radeon: allways add the VM clear duplicateChristian König
We need to allways add the VM clear duplicate of the BO_VA, no matter what the old status was. Signed-off-by: Christian König <christian.koenig@amd.com> Test-by: hadack@gmx.de Tested-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-07-09Revert "Revert "drm/radeon: dont switch vt on suspend""Alex Deucher
This reverts commit ac9134906b3f5c2b45dc80dab0fee792bd516d52. We've fixed the underlying problem with cursors, so re-enable this.
2015-07-09drm/radeon: Fold radeon_set_cursor() into radeon_show_cursor()Michel Dänzer
Reviewed-by: Grigori Goronzy <greg@chown.ath.cx> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-07-09drm/radeon: unpin cursor BOs on suspend and pin them again on resume (v2)Grigori Goronzy
Everything is evicted from VRAM before suspend, so we need to make sure all BOs are unpinned and re-pinned after resume. Fixes broken mouse cursor after resume introduced by commit b9729b17. [Michel Dänzer: Add pinning BOs on resume] v2: [Alex Deucher: merge cursor unpin into fb unpin loop] Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=100541 Cc: stable@vger.kernel.org Reviewed-by: Christian König <christian.koenig@amd.com> (v1) Signed-off-by: Grigori Goronzy <greg@chown.ath.cx> Signed-off-by: Michel Dänzer <michel.daenzer@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>