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2015-12-13Merge branch 'timers-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timer fix from Thomas Gleixner: "A single fix to unbreak a clocksource driver which has more than 32bit counter width" * 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: clocksource: Mmio: remove artificial 32bit limitation
2015-12-13Merge tag 'char-misc-4.4-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull fpga driver fixes from Greg KH: "Only two small fpga driver fixes here, both have been in linux-next for a while, and resolve some reported issues" * tag 'char-misc-4.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: fpga manager: Fix firmware resource leak on error fpga manager: remove label
2015-12-13Merge tag 'staging-4.4-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging driver fixes from Greg KH: "Here are a few staging and IIO driver fixes for 4.4-rc5. All of them resolve reported problems and have been in linux-next for a while. Nothing major here, just small fixes where needed" * tag 'staging-4.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: staging: lustre: echo_copy.._lsm() dereferences userland pointers directly iio: adc: spmi-vadc: add missing of_node_put iio: fix some warning messages iio: light: apds9960: correct ->last_busy count iio: lidar: return -EINVAL on invalid signal staging: iio: dummy: complete IIO events delivery to userspace
2015-12-13Merge tag 'usb-4.4-rc5' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB driver fixes from Greg KH: "Here are a number of small USB fixes for 4.4-rc5. All of them have been in linux-next. The majority are gadget and phy issues, with a few new quirks and device ids added as well" * tag 'usb-4.4-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (32 commits) USB: add quirk for devices with broken LPM xhci: fix usb2 resume timing and races. usb: musb: fail with error when no DMA controller set usb: gadget: uvc: fix permissions of configfs attributes usb: musb: core: Fix pm runtime for deferred probe usb: phy: msm: fix a possible NULL dereference USB: host: ohci-at91: fix a crash in ohci_hcd_at91_overcurrent_irq usb: Quiet down false peer failure messages usb: xhci: fix config fail of FS hub behind a HS hub with MTT xhci: Fix memory leak in xhci_pme_acpi_rtd3_enable() usb: Use the USB_SS_MULT() macro to decode burst multiplier for log message USB: whci-hcd: add check for dma mapping error usb: core : hub: Fix BOS 'NULL pointer' kernel panic USB: quirks: Apply ALWAYS_POLL to all ELAN devices usb-storage: Fix scsi-sd failure "Invalid field in cdb" for USB adapter JMicron USB: quirks: Fix another ELAN touchscreen usb: dwc3: gadget: don't prestart interrupt endpoints USB: serial: Another Infineon flash loader USB ID USB: cdc_acm: Ignore Infineon Flash Loader utility USB: cp210x: Remove CP2110 ID from compatibility list ...
2015-12-12Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Arnd Bergmann: "Here are a bunch of small bug fixes for various ARM platforms, nothing really sticks out this week, most of either fixes bugs in code that was just added in 4.4, or that has been broken for many years without anyone noticing. at91/sama5d2: - fix sama5de hardware setup of sd/mmc interface - proper selection of pinctrl drivers. PIO4 is necessary for sama5d2 berlin: - fix incorrect clock input for SDIO exynos: - Fix potential NULL pointer dereference in Exynos PMU driver. imx: - Fix vf610 SAI clock configuration bug which is discovered by the newly added master mode support in SAI audio driver. - Fix buggy L2 cache latency values in vf610 device trees, which may cause system hang when cpu runs at a higher frequency. ixp4xx: - fix prototypes for readl/writel functions ls2080a: - use little-endian register access for GPIO and SDHCI omap: - Fix clock source for ARM TWD and global timers on am437x - Always select REGULATOR_FIXED_VOLTAGE for omap2+ instead of when MACH_OMAP3_PANDORA is selected - Fix SPI DMA handles for dm816x as only some were mapped - Fix up mbox cells for dm816x to make mailbox usable pxa: - use PWM lookup table for all ezx machines s3c24xx: - Remove incorrect __init annotation from s3c24xx cpufreq driver structures. versatile: - fix PCI IRQ mapping on Versatile PB" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ls2080a/dts: Add little endian property for GPIO IP block dt-bindings: define little-endian property for QorIQ GPIO ARM64: dts: ls2080a: fix eSDHC endianness ARM: dts: vf610: use reset values for L2 cache latencies ARM: pxa: use PWM lookup table for all machines ARM: dts: berlin: add 2nd clock for BG2Q sdhci0 and sdhci1 ARM: dts: berlin: correct BG2Q's sdhci2 2nd clock ARM: dts: am4372: fix clock source for arm twd and global timers ARM: at91: fix pinctrl driver selection ARM: at91/dt: add always-on to 1.8V regulator ARM: dts: vf610: fix clock definition for SAI2 ARM: imx: clk-vf610: fix SAI clock tree ARM: ixp4xx: fix read{b,w,l} return types irqchip/versatile-fpga: Fix PCI IRQ mapping on Versatile PB ARM: OMAP2+: enable REGULATOR_FIXED_VOLTAGE ARM: dts: add dm816x missing spi DT dma handles ARM: dts: add dm816x missing #mbox-cells cpufreq: s3c24xx: Do not mark s3c2410_plls_add as __init ARM: EXYNOS: Fix potential NULL pointer access in exynos_sys_powerdown_conf
2015-12-12Merge tag 'powerpc-4.4-4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Michael Ellerman: - opal-irqchip: Fix double endian conversion from Alistair Popple - cxl: Set endianess of kernel contexts from Frederic Barrat - sbc8641: drop bogus PHY IRQ entries from DTS file from Paul Gortmaker - Revert "powerpc/eeh: Don't unfreeze PHB PE after reset" from Andrew Donnellan * tag 'powerpc-4.4-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: Revert "powerpc/eeh: Don't unfreeze PHB PE after reset" powerpc/sbc8641: drop bogus PHY IRQ entries from DTS file cxl: Set endianess of kernel contexts powerpc/opal-irqchip: Fix double endian conversion
2015-12-12Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge misc fixes from Andrew Morton: "17 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: MIPS: fix DMA contiguous allocation sh64: fix __NR_fgetxattr ocfs2: fix SGID not inherited issue mm/oom_kill.c: avoid attempting to kill init sharing same memory drivers/base/memory.c: prohibit offlining of memory blocks with missing sections tmpfs: fix shmem_evict_inode() warnings on i_blocks mm/hugetlb.c: fix resv map memory leak for placeholder entries mm: hugetlb: call huge_pte_alloc() only if ptep is null kernel: remove stop_machine() Kconfig dependency mm: kmemleak: mark kmemleak_init prototype as __init mm: fix kerneldoc on mem_cgroup_replace_page osd fs: __r4w_get_page rely on PageUptodate for uptodate MAINTAINERS: make Vladimir co-maintainer of the memory controller mm, vmstat: allow WQ concurrency to discover memory reclaim doesn't make any progress mm: fix swapped Movable and Reclaimable in /proc/pagetypeinfo memcg: fix memory.high target mm: hugetlb: fix hugepage memory leak caused by wrong reserve count
2015-12-12Merge branch 'parisc-4.4-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc fixes from Helge Deller: "Fix the boot crash on Mako machines with Huge Pages, prevent a panic with SATA controllers (and others) by correctly calculating the IOMMU space, hook up the mlock2 syscall and drop unneeded code in the parisc pci code" * 'parisc-4.4-3' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: Disable huge pages on Mako machines parisc: Wire up mlock2 syscall parisc: Remove unused pcibios_init_bus() parisc iommu: fix panic due to trying to allocate too large region
2015-12-12Merge branch 'for-linus' of git://git.kernel.dk/linux-blockLinus Torvalds
Pull block layer fixes from Jens Axboe: "A set of fixes for the current series. This contains: - A bunch of fixes for lightnvm, should be the last round for this series. From Matias and Wenwei. - A writeback detach inode fix from Ilya, also marked for stable. - A block (though it says SCSI) fix for an OOPS in SCSI runtime power management. - Module init error path fixes for null_blk from Minfei" * 'for-linus' of git://git.kernel.dk/linux-block: null_blk: Fix error path in module initialization lightnvm: do not compile in debugging by default lightnvm: prevent gennvm module unload on use lightnvm: fix media mgr registration lightnvm: replace req queue with nvmdev for lld lightnvm: comments on constants lightnvm: check mm before use lightnvm: refactor spin_unlock in gennvm_get_blk lightnvm: put blks when luns configure failed lightnvm: use flags in rrpc_get_blk block: detach bdev inode from its wb in __blkdev_put() SCSI: Fix NULL pointer dereference in runtime PM
2015-12-12drivers/base/memory.c: prohibit offlining of memory blocks with missing sectionsSeth Jennings
Commit bdee237c0343 ("x86: mm: Use 2GB memory block size on large-memory x86-64 systems") and 982792c782ef ("x86, mm: probe memory block size for generic x86 64bit") introduced large block sizes for x86. This made it possible to have multiple sections per memory block where previously, there was a only every one section per block. Since blocks consist of contiguous ranges of section, there can be holes in the blocks where sections are not present. If one attempts to offline such a block, a crash occurs since the code is not designed to deal with this. This patch is a quick fix to gaurd against the crash by not allowing blocks with non-present sections to be offlined. Addresses https://bugzilla.kernel.org/show_bug.cgi?id=107781 Signed-off-by: Seth Jennings <sjennings@variantweb.net> Reported-by: Andrew Banman <abanman@sgi.com> Cc: Daniel J Blueman <daniel@numascale.com> Cc: Yinghai Lu <yinghai@kernel.org> Cc: Greg KH <greg@kroah.com> Cc: Russ Anderson <rja@sgi.com> Cc: <stable@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-12-12parisc iommu: fix panic due to trying to allocate too large regionMikulas Patocka
When using the Promise TX2+ SATA controller on PA-RISC, the system often crashes with kernel panic, for example just writing data with the dd utility will make it crash. Kernel panic - not syncing: drivers/parisc/sba_iommu.c: I/O MMU @ 000000000000a000 is out of mapping resources CPU: 0 PID: 18442 Comm: mkspadfs Not tainted 4.4.0-rc2 #2 Backtrace: [<000000004021497c>] show_stack+0x14/0x20 [<0000000040410bf0>] dump_stack+0x88/0x100 [<000000004023978c>] panic+0x124/0x360 [<0000000040452c18>] sba_alloc_range+0x698/0x6a0 [<0000000040453150>] sba_map_sg+0x260/0x5b8 [<000000000c18dbb4>] ata_qc_issue+0x264/0x4a8 [libata] [<000000000c19535c>] ata_scsi_translate+0xe4/0x220 [libata] [<000000000c19a93c>] ata_scsi_queuecmd+0xbc/0x320 [libata] [<0000000040499bbc>] scsi_dispatch_cmd+0xfc/0x130 [<000000004049da34>] scsi_request_fn+0x6e4/0x970 [<00000000403e95a8>] __blk_run_queue+0x40/0x60 [<00000000403e9d8c>] blk_run_queue+0x3c/0x68 [<000000004049a534>] scsi_run_queue+0x2a4/0x360 [<000000004049be68>] scsi_end_request+0x1a8/0x238 [<000000004049de84>] scsi_io_completion+0xfc/0x688 [<0000000040493c74>] scsi_finish_command+0x17c/0x1d0 The cause of the crash is not exhaustion of the IOMMU space, there is plenty of free pages. The function sba_alloc_range is called with size 0x11000, thus the pages_needed variable is 0x11. The function sba_search_bitmap is called with bits_wanted 0x11 and boundary size is 0x10 (because dma_get_seg_boundary(dev) returns 0xffff). The function sba_search_bitmap attempts to allocate 17 pages that must not cross 16-page boundary - it can't satisfy this requirement (iommu_is_span_boundary always returns true) and fails even if there are many free entries in the IOMMU space. How did it happen that we try to allocate 17 pages that don't cross 16-page boundary? The cause is in the function iommu_coalesce_chunks. This function tries to coalesce adjacent entries in the scatterlist. The function does several checks if it may coalesce one entry with the next, one of those checks is this: if (startsg->length + dma_len > max_seg_size) break; When it finishes coalescing adjacent entries, it allocates the mapping: sg_dma_len(contig_sg) = dma_len; dma_len = ALIGN(dma_len + dma_offset, IOVP_SIZE); sg_dma_address(contig_sg) = PIDE_FLAG | (iommu_alloc_range(ioc, dev, dma_len) << IOVP_SHIFT) | dma_offset; It is possible that (startsg->length + dma_len > max_seg_size) is false (we are just near the 0x10000 max_seg_size boundary), so the funcion decides to coalesce this entry with the next entry. When the coalescing succeeds, the function performs dma_len = ALIGN(dma_len + dma_offset, IOVP_SIZE); And now, because of non-zero dma_offset, dma_len is greater than 0x10000. iommu_alloc_range (a pointer to sba_alloc_range) is called and it attempts to allocate 17 pages for a device that must not cross 16-page boundary. To fix the bug, we must make sure that dma_len after addition of dma_offset and alignment doesn't cross the segment boundary. I.e. change if (startsg->length + dma_len > max_seg_size) break; to if (ALIGN(dma_len + dma_offset + startsg->length, IOVP_SIZE) > max_seg_size) break; This patch makes this change (it precalculates max_seg_boundary at the beginning of the function iommu_coalesce_chunks). I also added a check that the mapping length doesn't exceed dma_get_seg_boundary(dev) (it is not needed for Promise TX2+ SATA, but it may be needed for other devices that have dma_get_seg_boundary lower than dma_get_max_seg_size). Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org Signed-off-by: Helge Deller <deller@gmx.de>
2015-12-11Merge tag 'imx-fixes-4.4-2' of ↵Kevin Hilman
git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into fixes Merge "ARM: imx: fixes for 4.4, 2nd round" from Shawn Guo: The i.MX fixes for 4.4, 2nd round: - Fix vf610 SAI clock configuration bug which is discovered by the newly added master mode support in SAI audio driver. - Fix buggy L2 cache latency values in vf610 device trees, which may cause system hang when cpu runs at a higher frequency. * tag 'imx-fixes-4.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: ARM: dts: vf610: use reset values for L2 cache latencies ARM: dts: vf610: fix clock definition for SAI2 ARM: imx: clk-vf610: fix SAI clock tree
2015-12-11USB: add quirk for devices with broken LPMAlan Stern
Some USB device / host controller combinations seem to have problems with Link Power Management. For example, Steinar found that his xHCI controller wouldn't handle bandwidth calculations correctly for two video cards simultaneously when LPM was enabled, even though the bus had plenty of bandwidth available. This patch introduces a new quirk flag for devices that should remain disabled for LPM, and creates quirk entries for Steinar's devices. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Reported-by: Steinar H. Gunderson <sgunderson@bigfoot.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-11xhci: fix usb2 resume timing and races.Mathias Nyman
According to USB 2 specs ports need to signal resume for at least 20ms, in practice even longer, before moving to U0 state. Both host and devices can initiate resume. On device initiated resume, a port status interrupt with the port in resume state in issued. The interrupt handler tags a resume_done[port] timestamp with current time + USB_RESUME_TIMEOUT, and kick roothub timer. Root hub timer requests for port status, finds the port in resume state, checks if resume_done[port] timestamp passed, and set port to U0 state. On host initiated resume, current code sets the port to resume state, sleep 20ms, and finally sets the port to U0 state. This should also be changed to work in a similar way as the device initiated resume, with timestamp tagging, but that is not yet tested and will be a separate fix later. There are a few issues with this approach 1. A host initiated resume will also generate a resume event. The event handler will find the port in resume state, believe it's a device initiated resume, and act accordingly. 2. A port status request might cut the resume signalling short if a get_port_status request is handled during the host resume signalling. The port will be found in resume state. The timestamp is not set leading to time_after_eq(jiffies, timestamp) returning true, as timestamp = 0. get_port_status will proceed with moving the port to U0. 3. If an error, or anything else happens to the port during device initiated resume signalling it will leave all the device resume parameters hanging uncleared, preventing further suspend, returning -EBUSY, and cause the pm thread to busyloop trying to enter suspend. Fix this by using the existing resuming_ports bitfield to indicate that resume signalling timing is taken care of. Check if the resume_done[port] is set before using it for timestamp comparison, and also clear out any resume signalling related variables if port is not in U0 or Resume state This issue was discovered when a PM thread busylooped, trying to runtime suspend the xhci USB 2 roothub on a Dell XPS Cc: stable <stable@vger.kernel.org> Reported-by: Daniel J Blueman <daniel@quora.org> Tested-by: Daniel J Blueman <daniel@quora.org> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-11Merge tag 'dm-4.4-fixes-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm Pull device mapper fixes from Mike Snitzer: "Five stable fixes: - Two DM btree bufio buffer leak fixes that resolve reported BUG_ONs during DM thinp metadata close's dm_bufio_client_destroy(). - A DM thinp range discard fix to handle discarding a partially mapped range. - A DM thinp metadata snapshot fix to make sure the btree roots saved in the metadata snapshot are the most current. - A DM space map metadata refcounting fix that improves both DM thinp and DM cache metadata" * tag 'dm-4.4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm: dm btree: fix bufio buffer leaks in dm_btree_del() error path dm space map metadata: fix ref counting bug when bootstrapping a new space map dm thin metadata: fix bug when taking a metadata snapshot dm thin metadata: fix bug in dm_thin_remove_range() dm btree: fix leak of bufio-backed block in btree_split_sibling error path
2015-12-11Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "Not too much this time. - One nouveau workaround extended to a few more GPUs - Some amdgpu big endian fixes, and a regression fixer - Some vmwgfx fixes - One ttm locking fix - One vgaarb fix" * 'drm-fixes' of git://people.freedesktop.org/~airlied/linux: vgaarb: fix signal handling in vga_get() radeon: Fix VCE IB test on Big-Endian systems radeon: Fix VCE ring test for Big-Endian systems radeon/cik: Fix GFX IB test on Big-Endian drm/amdgpu: fix the lost duplicates checking drm/nouveau/pmu: remove whitelist for PGOB-exit WAR, enable by default drm/vmwgfx: Implement the cursor_set2 callback v2 drm/vmwgfx: fix a warning message drm/ttm: Fixed a read/write lock imbalance
2015-12-11vgaarb: fix signal handling in vga_get()Kirill A. Shutemov
There are few defects in vga_get() related to signal hadning: - we shouldn't check for pending signals for TASK_UNINTERRUPTIBLE case; - if we found pending signal we must remove ourself from wait queue and change task state back to running; - -ERESTARTSYS is more appropriate, I guess. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Cc: stable@vger.kernel.org Reviewed-by: David Herrmann <dh.herrmann@gmail.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
2015-12-11Merge branch 'drm-fixes-4.4' of git://people.freedesktop.org/~agd5f/linux ↵Dave Airlie
into drm-fixes some big endian fixes and one regression fix. * 'drm-fixes-4.4' of git://people.freedesktop.org/~agd5f/linux: radeon: Fix VCE IB test on Big-Endian systems radeon: Fix VCE ring test for Big-Endian systems radeon/cik: Fix GFX IB test on Big-Endian drm/amdgpu: fix the lost duplicates checking
2015-12-11Merge tag 'samsung-fixes-4.4' of ↵Arnd Bergmann
https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into fixes Merge "Fixes for Exynos" from Krzysztof Kozlowski: 1. Fix potential NULL pointer dereference in Exynos PMU driver. 2. Remove incorrect __init annotation from s3c24xx cpufreq driver structures. * tag 'samsung-fixes-4.4' of https://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: cpufreq: s3c24xx: Do not mark s3c2410_plls_add as __init ARM: EXYNOS: Fix potential NULL pointer access in exynos_sys_powerdown_conf
2015-12-10Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma fixes from Doug Ledford: "Most are minor to important fixes. There is one performance enhancement that I took on the grounds that failing to check if other processes can run before running what's intended to be a background, idle-time task is a bug, even though the primary effect of the fix is to improve performance (and it was a very simple patch)" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: IB/mlx5: Postpone remove_keys under knowledge of coming preemption IB/mlx4: Use vmalloc for WR buffers when needed IB/mlx4: Use correct order of variables in log message iser-target: Remove explicit mlx4 work-around mlx4: Expose correct max_sge_rd limit IB/mad: Require CM send method for everything except ClassPortInfo IB/cma: Add a missing rcu_read_unlock() IB core: Fix ib_sg_to_pages() IB/srp: Fix srp_map_sg_fr() IB/srp: Fix indirect data buffer rkey endianness IB/srp: Initialize dma_length in srp_map_idb IB/srp: Fix possible send queue overflow IB/srp: Fix a memory leak IB/sa: Put netlink request into the request list before sending IB/iser: use sector_div instead of do_div IB/core: use RCU for uverbs id lookup IB/qib: Minor fixes to qib per SFF 8636 IB/core: Fix user mode post wr corruption IB/qib: Fix qib_mr structure
2015-12-10clocksource: Mmio: remove artificial 32bit limitationLinus Walleij
The EP93xx is registering a clocksource of 40 bits with clocksource_mmio_init() but this is not working because of this artificial limitation. It works fine to lift the uppe limit to 64 bits, and since cycle_t is u64, it should intuitively have been like that from the beginning. Fixes: 000bc17817bf "ARM: ep93xx: switch to GENERIC_CLOCKEVENTS" Reported-by: Alexander Sverdlin <alexander.sverdlin@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Cc: Daniel Lezcano <daniel.lezcano@linaro.org> Link: http://lkml.kernel.org/r/1449768101-6879-1-git-send-email-linus.walleij@linaro.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2015-12-10dm btree: fix bufio buffer leaks in dm_btree_del() error pathJoe Thornber
If dm_btree_del()'s call to push_frame() fails, e.g. due to btree_node_validator finding invalid metadata, the dm_btree_del() error path must unlock all frames (which have active dm-bufio buffers) that were pushed onto the del_stack. Otherwise, dm_bufio_client_destroy() will BUG_ON() because dm-bufio buffers have leaked, e.g.: device-mapper: bufio: leaked buffer 3, hold count 1, list 0 Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
2015-12-09Merge tag 'vfio-v4.4-rc5' of git://github.com/awilliam/linux-vfioLinus Torvalds
Pull VFIO fixes from Alex Williamson: - Various fixes for removing redundancy, const'ifying structs, avoiding stack usage, fixing WARN usage (Krzysztof Kozlowski, Julia Lawall, Kees Cook, Dan Carpenter) - Revert No-IOMMU mode as the intended user has not emerged (Alex Williamson) * tag 'vfio-v4.4-rc5' of git://github.com/awilliam/linux-vfio: Revert: "vfio: Include No-IOMMU mode" vfio: fix a warning message vfio: platform: remove needless stack usage vfio-pci: constify pci_error_handlers structures vfio: Drop owner assignment from platform_driver
2015-12-09Merge tag 'devicetree-fixes-for-4.4-rc4' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux Pull DT fixes from Rob Herring: "I think this should be all for 4.4: - Fix incorrect warning about overlapping memory regions - Export of_irq_find_parent again which was made static in 4.4, but has users pending for 4.5. - Fix of_msi_map_rid declaration location - Fix re-entrancy for of_fdt_unflatten_tree - Clean-up of phys_addr_t printks" * tag 'devicetree-fixes-for-4.4-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: of/irq: move of_msi_map_rid declaration to the correct ifdef section of/irq: Export of_irq_find_parent again of/fdt: Add mutex protection for calls to __unflatten_device_tree() of/address: fix typo in comment block of of_translate_one() of: do not use 0x in front of %pa of: Fix comparison of reserved memory regions
2015-12-09Merge 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: "One small build fix, a couple do_div() fixes, and a fix for the gpio basic clock type are the major changes here. There's also a couple fixes for the TI, sunxi, and scpi clock drivers" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: sunxi: pll2: Fix clock running too fast clk: scpi: add missing of_node_put clk: qoriq: fix memory leak imx/clk-pllv2: fix wrong do_div() usage imx/clk-pllv1: fix wrong do_div() usage clk: mmp: add linux/clk.h includes clk: ti: drop locking code from mux/divider drivers clk: ti816x: Add missing dmtimer clkdev entries clk: ti: fapll: fix wrong do_div() usage clk: ti: clkt_dpll: fix wrong do_div() usage clk: gpio: Get parent clk names in of_gpio_clk_setup()
2015-12-09Merge tag 'for-linus-4.4-1' of git://git.code.sf.net/p/openipmi/linux-ipmiLinus Torvalds
Pull IPMI fix from Corey Minyard: "Fix an Oops if an interrupt occurs at startup. This can happen on some hardware" * tag 'for-linus-4.4-1' of git://git.code.sf.net/p/openipmi/linux-ipmi: ipmi: move timer init to before irq is setup
2015-12-09ipmi: move timer init to before irq is setupJan Stancek
We encountered a panic on boot in ipmi_si on a dell per320 due to an uninitialized timer as follows. static int smi_start_processing(void *send_info, ipmi_smi_t intf) { /* Try to claim any interrupts. */ if (new_smi->irq_setup) new_smi->irq_setup(new_smi); --> IRQ arrives here and irq handler tries to modify uninitialized timer which triggers BUG_ON(!timer->function) in __mod_timer(). Call Trace: <IRQ> [<ffffffffa0532617>] start_new_msg+0x47/0x80 [ipmi_si] [<ffffffffa053269e>] start_check_enables+0x4e/0x60 [ipmi_si] [<ffffffffa0532bd8>] smi_event_handler+0x1e8/0x640 [ipmi_si] [<ffffffff810f5584>] ? __rcu_process_callbacks+0x54/0x350 [<ffffffffa053327c>] si_irq_handler+0x3c/0x60 [ipmi_si] [<ffffffff810efaf0>] handle_IRQ_event+0x60/0x170 [<ffffffff810f245e>] handle_edge_irq+0xde/0x180 [<ffffffff8100fc59>] handle_irq+0x49/0xa0 [<ffffffff8154643c>] do_IRQ+0x6c/0xf0 [<ffffffff8100ba53>] ret_from_intr+0x0/0x11 /* Set up the timer that drives the interface. */ setup_timer(&new_smi->si_timer, smi_timeout, (long)new_smi); The following patch fixes the problem. To: Openipmi-developer@lists.sourceforge.net To: Corey Minyard <minyard@acm.org> CC: linux-kernel@vger.kernel.org Signed-off-by: Jan Stancek <jstancek@redhat.com> Signed-off-by: Tony Camuso <tcamuso@redhat.com> Signed-off-by: Corey Minyard <cminyard@mvista.com> Cc: stable@vger.kernel.org # Applies cleanly to 3.10-, needs small rework before
2015-12-09dm space map metadata: fix ref counting bug when bootstrapping a new space mapJoe Thornber
When applying block operations (BOPs) do not remove them from the uncommitted BOP ring-buffer until after they've been applied -- in case we recurse. Also, perform BOP_INC operation, in dm_sm_metadata_create() and sm_metadata_extend(), in terms of the uncommitted BOP ring-buffer rather than using direct calls to sm_ll_inc(). Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
2015-12-09dm thin metadata: fix bug when taking a metadata snapshotJoe Thornber
When you take a metadata snapshot the btree roots for the mapping and details tree need to have their reference counts incremented so they persist for the lifetime of the metadata snap. The roots being incremented were those currently written in the superblock, which could possibly be out of date if concurrent IO is triggering new mappings, breaking of sharing, etc. Fix this by performing a commit with the metadata lock held while taking a metadata snapshot. Signed-off-by: Joe Thornber <ejt@redhat.com> Signed-off-by: Mike Snitzer <snitzer@redhat.com> Cc: stable@vger.kernel.org
2015-12-09Merge tag 'fixes-for-v4.4-rc5' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb into usb-linus Felipe writes: usb: fixes for-v4.4-rc5 Hopefully final set of fixes for v4.4 release cycle. There's a fix for a regression on dwc3 caused by recent changes to how transfers are started. We're not pre-starting interrupt endpoints anymore. A NULL pointer dereference fix for the MSM phy driver. The UVC gadget got a minor fix for permissions to its configfs attributes and, finally, two fixes for MUSB. A fix for PM runtime when MUSB returns EPROBE_DEFER and a fix to actually return an error in case we can't initialize a DMA engine. Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-09Merge tag 'pci-v4.4-fixes-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI fixes from Bjorn Helgaas: "These are more fixes I'd like to have in v4.4. Several for the Altera driver added for v4.4, and one for an MSI domain problem that affects several arm64 platforms: MSI: - Only use the generic MSI layer when domain is hierarchical (Marc Zyngier) Altera host bridge driver: - Fix loop in tlp_read_packet() (Dan Carpenter) - Fix Requester ID for config accesses (Ley Foon Tan) - Check TLP completion status (Ley Foon Tan) - Fix error when INTx is 4 (Ley Foon Tan)" * tag 'pci-v4.4-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: altera: Fix error when INTx is 4 PCI: altera: Check TLP completion status PCI: altera: Fix Requester ID for config accesses PCI: altera: Fix loop in tlp_read_packet() PCI/MSI: Only use the generic MSI layer when domain is hierarchical
2015-12-09usb: musb: fail with error when no DMA controller setAaro Koskinen
Fail with error when no DMA controller is set. Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-09of/irq: Export of_irq_find_parent againCarlo Caione
of_irq_find_parent was made static since it had no users outside of of_irq.c. Export it again since we are going to use it again. Signed-off-by: Carlo Caione <carlo@endlessm.com> [robh: move of_irq_find_parent to correct ifdef section] Signed-off-by: Rob Herring <robh@kernel.org>
2015-12-09radeon: Fix VCE IB test on Big-Endian systemsOded Gabbay
This patch makes the VCE IB test pass on Big-Endian systems. It converts to little-endian the contents of the VCE message. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-12-09radeon: Fix VCE ring test for Big-Endian systemsOded Gabbay
This patch fixes the VCE ring test when running on Big-Endian machines. Every write to the ring needs to be translated to little-endian. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-12-09radeon/cik: Fix GFX IB test on Big-EndianOded Gabbay
This patch makes the IB test on the GFX ring pass for CI-based cards installed in Big-Endian machines. Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> Cc: stable@vger.kernel.org Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2015-12-09drm/amdgpu: fix the lost duplicates checkingChunming Zhou
Signed-off-by: Chunming Zhou <David1.Zhou@amd.com> Reviewed-by: Christian König <christian.koenig@amd.com> Reviewed-by: Jammy Zhou <Jammy.Zhou@amd.com> Cc: stable@vger.kernel.org
2015-12-09Merge tag 'vmwgfx-fixes-4.4-151208' of ↵Dave Airlie
git://people.freedesktop.org/~thomash/linux into drm-fixes Pull request of 2015-12-08 A couple of fixes for vmwgfx. A WARN() fix by Dan Carpenter, a TTM read/write lock imbalance causing occasional hangs with Wayland and an implementation of cursor_set2 to fix incorrectly offset Wayland cursors. * tag 'vmwgfx-fixes-4.4-151208' of git://people.freedesktop.org/~thomash/linux: drm/vmwgfx: Implement the cursor_set2 callback v2 drm/vmwgfx: fix a warning message drm/ttm: Fixed a read/write lock imbalance
2015-12-09Merge branch 'linux-4.4' of https://github.com/skeggsb/linux into drm-fixesDave Airlie
Just the one commit I mentioned earlier, making the PGOB workaround the default. * 'linux-4.4' of https://github.com/skeggsb/linux: drm/nouveau/pmu: remove whitelist for PGOB-exit WAR, enable by default
2015-12-09drm/nouveau/pmu: remove whitelist for PGOB-exit WAR, enable by defaultBen Skeggs
NVIDIA have indicated that the workaround is required on all GK10[467] boards that have the PGOB fuse set. I've left the commandline option in place for now, as paranoia. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2015-12-08IB/mlx5: Postpone remove_keys under knowledge of coming preemptionLeon Romanovsky
The remove_keys() logic is performed as garbage collection task. Such task is intended to be run when no other active processes are running. The need_resched() will return TRUE if there are user tasks to be activated in near future. In such case, we don't execute remove_keys() and postpone the garbage collection work to try to run in next cycle, in order to free CPU resources to other tasks. The possible pseudo-code to trigger such scenario: 1. Allocate a lot of MR to fill the cache above the limit. 2. Wait a small amount of time "to calm" the system. 3. Start CPU extensive operations on multi-node cluster. 4. Expect performance degradation during MR cache shrink operation. Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Eli Cohen <eli@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-08IB/mlx4: Use vmalloc for WR buffers when neededWengang Wang
There are several hits that WR buffer allocation(kmalloc) failed. It failed at order 3 and/or 4 contigous pages allocation. At the same time there are actually 100MB+ free memory but well fragmented. So try vmalloc when kmalloc failed. Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com> Acked-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-08IB/mlx4: Use correct order of variables in log messageWengang Wang
There is a mis-order in mlx4 log. Fix it. Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com> Acked-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-08Merge branch 'for-4.4-fixes' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata Pull libata fixes from Tejun Heo: "Nothing too interesting. All are device specific additions and workarounds" * 'for-4.4-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: ata/sata_fsl.c: add ATA_FLAG_NO_LOG_PAGE to blacklist the controller for log page reads libata-eh.c: Introduce new ata port flag for controller which lockup on read log page sata_sil: disable trim AHCI: Fix softreset failed issue of Port Multiplier sata/mvebu: use #ifdef around suspend/resume code ahci: Order SATA device IDs for codename Lewisburg ahci: Add Device ID for Intel Sunrise Point PCH
2015-12-08null_blk: Fix error path in module initializationMinfei Huang
Module couldn't release resource properly during the initialization. To fix this issue, we will clean up the proper resource before returning. Signed-off-by: Minfei Huang <mnfhuang@gmail.com> Signed-off-by: Jens Axboe <axboe@fb.com>
2015-12-08iser-target: Remove explicit mlx4 work-aroundSagi Grimberg
The driver now exposes sufficient limits so we can avoid having mlx4 specific work-around. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-08mlx4: Expose correct max_sge_rd limitSagi Grimberg
mlx4 devices (ConnectX-2, ConnectX-3) has a limitation where rdma read work queue entries cannot exceed 512 bytes. A rdma_read wqe needs to fit in 512 bytes: - wqe control segment (16 bytes) - rdma segment (16 bytes) - scatter elements (16 bytes each) So max_sge_rd should be: (512 - 16 - 16) / 16 = 30. Signed-off-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-08IB/mad: Require CM send method for everything except ClassPortInfoHal Rosenstock
Receipt of CM MAD with other than the Send method for an attribute other than the ClassPortInfo attribute is invalid. CM attributes other than ClassPortInfo only use the send method. The SRP initiator does not maintain a timeout policy for CM connect requests relies on the CM layer to do that. The result was that the SRP initiator hung as the connect request never completed. A new SRP target has been observed to respond to Send CM REQ with GetResp of CM REQ with bad status. This is non conformant with IBA spec but exposes a vulnerability in the current MAD/CM code which will respond to the incoming GetResp of CM REQ as if it was a valid incoming Send of CM REQ rather than tossing this on the floor. It also causes the MAD layer not to retransmit the original REQ even though it has not received a REP. Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Signed-off-by: Hal Rosenstock <hal@mellanox.com> Reviewed-by: Ira Weiny <ira.weiny@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-08IB/cma: Add a missing rcu_read_unlock()Bart Van Assche
Ensure that validate_ipv4_net_dev() calls rcu_read_unlock() if fib_lookup() fails. Detected by sparse. Compile-tested only. Fixes: "IB/cma: Validate routing of incoming requests" (commit f887f2ac87c2). Cc: Haggai Eran <haggaie@mellanox.com> Cc: stable <stable@vger.kernel.org> Reviewed-by: Sagi Grimberg <sagig@mellanox.com> Reviewed-by: Haggai Eran <haggaie@mellanox.com> Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2015-12-08of/fdt: Add mutex protection for calls to __unflatten_device_tree()Guenter Roeck
__unflatten_device_tree() calls unflatten_dt_node(), which declares a static variable. It is therefore not reentrant. One of the callers of __unflatten_device_tree(), unflatten_device_tree(), is only called once during early initialization and does not need to be protected. The other caller, of_fdt_unflatten_tree(), can be called at any time, possibly multiple times in parallel. This can happen, for example, if multiple devicetree overlays have to be loaded and installed. Without this protection, errors such as the following may be seen. kernel: End of tree marker overwritten: e6a3a458 kernel: find_target_node: Failed to find target-indirect node at /fragment@0 kernel: __of_overlay_create: of_build_overlay_info() failed for tree@/ Add a mutex to of_fdt_unflatten_tree() to make the call reentrant. Cc: Pantelis Antoniou <pantelis.antoniou@konsulko.com> Signed-off-by: Guenter Roeck <linux@roeck-us.net> Cc: stable@vger.kernel.org # v4.1+ Signed-off-by: Rob Herring <robh@kernel.org>