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2016-09-16Merge branch 'for-next' of git://git.samba.org/sfrench/cifs-2.6Linus Torvalds
Pull cifs fixes from Steve French: "Small set of cifs fixes" * 'for-next' of git://git.samba.org/sfrench/cifs-2.6: Move check for prefix path to within cifs_get_root() Compare prepaths when comparing superblocks Fix memory leaks in cifs_do_mount()
2016-09-16Merge tag 'nfsd-4.8-2' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
Pull nfsd bugfix from Bruce Fields: "Fix a memory corruption bug that I introduced in 4.7" * tag 'nfsd-4.8-2' of git://linux-nfs.org/~bfields/linux: svcauth_gss: Revert 64c59a3726f2 ("Remove unnecessary allocation")
2016-09-16Merge tag 'drm-fixes-for-4.8-rc6' of git://people.freedesktop.org/~airlied/linuxLinus Torvalds
Pull drm fixes from Dave Airlie: "Two sets of i915 fixes, one set of vc4 crasher fixes, and a couple of atmel fixes. Nothing too out there at this stage, though I think some people are holidaying so it's been quiet enough" * tag 'drm-fixes-for-4.8-rc6' of git://people.freedesktop.org/~airlied/linux: drm/i915: Ignore OpRegion panel type except on select machines Revert "drm/i915/psr: Make idle_frames sensible again" drm/i915: Restore lost "Initialized i915" welcome message drm/vc4: mark vc4_bo_cache_purge() static drm/i915: Add GEN7_PCODE_MIN_FREQ_TABLE_GT_RATIO_OUT_OF_RANGE to SNB drm/i915: disable 48bit full PPGTT when vGPU is active drm/i915: enable vGPU detection for all drm/atmel-hlcdc: Make ->reset() implementation static drm: atmel-hlcdc: Fix vertical scaling drm/vc4: Allow some more signals to be packed with uniform resets. drm/i915/dvo: Remove dangling call to drm_encoder_cleanup()
2016-09-16Merge tag 'pm-4.8-rc7' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Pull power management fix from Rafael Wysocki: "More annotations of tracepoints in the runtime PM framework to prevent RCU from complaining when that code is invoked from the idle path (Paul McKenney)" * tag 'pm-4.8-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: PM / runtime: Use _rcuidle for runtime suspend tracepoints
2016-09-17Merge tag 'drm-vc4-fixes-2016-09-14' of https://github.com/anholt/linux into ↵Dave Airlie
drm-fixes This pull request brings in a fix for crashes in X on VC4. * tag 'drm-vc4-fixes-2016-09-14' of https://github.com/anholt/linux: drm/vc4: mark vc4_bo_cache_purge() static drm/vc4: Allow some more signals to be packed with uniform resets.
2016-09-17Merge tag 'drm-intel-fixes-2016-09-15' of ↵Dave Airlie
git://anongit.freedesktop.org/drm-intel into drm-fixes i915 fixes from Jani. * tag 'drm-intel-fixes-2016-09-15' of git://anongit.freedesktop.org/drm-intel: drm/i915: Ignore OpRegion panel type except on select machines Revert "drm/i915/psr: Make idle_frames sensible again" drm/i915: Restore lost "Initialized i915" welcome message
2016-09-16Merge tag 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma Pull rdma fixes from Doug Ledford: "Round three of 4.8 rc fixes. This is likely the last rdma pull request this cycle. The new rxe driver had a few issues (you probably saw the boot bot bug report) and they should be addressed now. There are a couple other fixes here, mainly mlx4. There are still two outstanding issues that need resolved but I don't think their fix will make this kernel cycle. Summary: - Various fixes to rdmavt, ipoib, mlx5, mlx4, rxe" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: IB/rdmavt: Don't vfree a kzalloc'ed memory region IB/rxe: Fix kmem_cache leak IB/rxe: Fix race condition between requester and completer IB/rxe: Fix duplicate atomic request handling IB/rxe: Fix kernel panic in udp_setup_tunnel IB/mlx5: Set source mac address in FTE IB/mlx5: Enable MAD_IFC commands for IB ports only IB/mlx4: Diagnostic HW counters are not supported in slave mode IB/mlx4: Use correct subnet-prefix in QP1 mads under SR-IOV IB/mlx4: Fix code indentation in QP1 MAD flow IB/mlx4: Fix incorrect MC join state bit-masking on SR-IOV IB/ipoib: Don't allow MC joins during light MC flush IB/rxe: fix GFP_KERNEL in spinlock context
2016-09-16Merge 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 couple of bugfixes for v4.8-rc. Most of them have actually been around for a while this time but for some reason didn't get applied early on. The shmobile regulator fix is the only one that isn't completely obvious. Device tree changes: - archtimer interrupts must be level triggered (multiple platforms) - fix for USB and MMC clocks on STiH410 - fix split DT repository in case of raspberry-pi 3 - a new use of skeleton.dtsi on arm64 has crept in after that was removed. defconfig updates: - xilinx vdma has a new Kconfig symbol name - keystone requires CONFIG_NOP_USB_XCEIV since v4.8-rc1 Code fixes: - fix regulator quirk on shmobile - suspend-to-ram regression on EXYNOS Maintainer updates: - Javier Martinez Canillas is now a reviewer for Samsung EXYNOS" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: keystone: defconfig: Fix USB configuration arm64: dts: Fix broken architected timer interrupt trigger ARM: multi_v7_defconfig: update XILINX_VDMA ARM64: dts: bcm: Use a symlink to R-Pi dtsi files from arch=arm ARM: dts: Remove use of skeleton.dtsi from bcm283x.dtsi ARM: dts: STiH407-family: Provide interconnect clock for consumption in ST SDHCI ARM: dts: STiH410: Handle interconnect clock required by EHCI/OHCI (USB) ARM: shmobile: fix regulator quirk for Gen2 ARM: EXYNOS: Clear OF_POPULATED flag from PMU node in IRQ init callback MAINTAINERS: Add myself as reviewer for Samsung Exynos support
2016-09-16Merge branch 'fixes' of git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds
Pull ARM fixes from Russell King: "Most of this update are fixes primarily discovered from testing on the older StrongARM 1110 and PXA systems, as a result of recent interest from several people in these platforms: - Locomo interrupt handling incorrectly stores the handler data in the chip's private data slot: when Locomo is combined with an interrupt controller who's chip uses the chip private data, this leads to an oops. - SA1111 was missing a call to clk_disable() to clean up after a failed probe. - SA1111 and PCMCIA suspend/resume was broken: The PCMCIA "ds" layer was using the legacy bus suspend/resume methods, which the core PM code is no longer calling as a result of device_pm_check_callbacks() introduced in commit aa8e54b559479 ("PM / sleep: Go direct_complete if driver has no callbacks"). SA1111 was broken due to changes to PCMCIA which makes PCMCIA suspend itself later than the SA1111 code expects, and resume before the SA1111 code has initialised access to the pcmcia sub-device. - the default SA1111 interrupt mask polarity got messed up when it was converted to use a dynamic interrupt base number for its interrupts. - fix platform_get_irq() error code propagation, which was causing problems on platforms where the interrupt may not be available at probe time in DT setups. - fix the lack of clock to PCMCIA code on PXA platforms, which was omitted in conversions of PXA to CCF. - fix an oops in the PXA PCMCIA code caused by a previous commit not realising that Lubbock is different from the rest of the PXA PCMCIA drivers. - ensure that SA1111 low-level PCMCIA drivers propagate their error codes to the main probe function, rather than the driver silently accepting a failure. - fix the sa11xx debugfs reporting of timing information, which always indicated zero due to the clock being a factor of 1000 out. - fix the polarity of the status change signal reported from the sockets. Lastly, one ARM specific commit from Stefan Agner fixing the LPAE cache attributes" * 'fixes' of git://git.armlinux.org.uk/~rmk/linux-arm: ARM: pxa/lubbock: add pcmcia clock ARM: locomo: fix locomo irq handling ARM: 8612/1: LPAE: initialize cache policy correctly ARM: sa1111: fix missing clk_disable() ARM: sa1111: fix pcmcia suspend/resume ARM: sa1111: fix pcmcia interrupt mask polarity ARM: sa1111: fix error code propagation in sa1111_probe() pcmcia: lubbock: fix sockets configuration pcmcia: sa1111: fix propagation of lowlevel board init return code pcmcia: soc_common: fix SS_STSCHG polarity pcmcia: sa11xx_base: add units to the timing information pcmcia: sa11xx_base: fix reporting of timing information pcmcia: ds: fix suspend/resume
2016-09-16IB/rdmavt: Don't vfree a kzalloc'ed memory regionColin Ian King
The userspace memory region 'mr' is allocated with kzalloc in __rvt_alloc_mr however it is incorrectly being freed with vfree in __rvt_free_mr. Fix this by using kfree to free it. Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Leon Romanovsky <leonro@mellanox.com> Acked-by: Dennis Dalessandro <dennis.dalessandro@intel.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-09-16IB/rxe: Fix kmem_cache leakYonatan Cohen
Decrement qp reference when handling error path in completer to prevent kmem_cache leak. Fixes: 8700e3e7c485 ("Soft RoCE driver") Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-09-16IB/rxe: Fix race condition between requester and completerYonatan Cohen
rxe_requester() is sending a pkt with rxe_xmit_packet() and then calls rxe_update() to update the wqe and qp's psn values. But sometimes the response is received before the requester had time to update the wqe in which case the completer acts on errornous wqe values. This fix updates the wqe and qp before actually sending the request and rolls back when xmit fails. Fixes: 8700e3e7c485 ("Soft RoCE driver") Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-09-16IB/rxe: Fix duplicate atomic request handlingYonatan Cohen
When handling ack for atomic opcodes like "fetch&add" or "cmp&swp", the method send_atomic_ack() saves the ack before sending it, in case it gets lost and never reach the requester. In which case the method duplicate_request() will need to find it using the duplicated request.psn. But send_atomic_ack() used a wrong psn value and thus the above ack was never found. This fix uses the ack.psn to locate the ack in case its needed. This fix also copies the ack packet to the skb's control buffer since duplicate_request() will need it when calling rxe_xmit_packet() Fixes: 8700e3e7c485 ("Soft RoCE driver") Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-09-16IB/rxe: Fix kernel panic in udp_setup_tunnelYonatan Cohen
Disable creation of a UDP socket for ipv6 when CONFIG_IPV6 is not enabeld. Since udp_sock_create6() returns 0 when CONFIG_IPV6 is not set [ 46.888632] IP: [<c220705a>] setup_udp_tunnel_sock+0x6/0x4f [ 46.891355] *pdpt = 0000000000000000 *pde = f000ff53f000ff53 [ 46.893918] Oops: 0002 [#1] PREEMPT [ 46.896014] CPU: 0 PID: 1 Comm: swapper Not tainted 4.7.0-rc4-00001-g8700e3e #1 [ 46.900280] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Debian-1.8.2-1 04/01/2014 [ 46.904905] task: cf06c040 ti: cf05e000 task.ti: cf05e000 [ 46.907854] EIP: 0060:[<c220705a>] EFLAGS: 00210246 CPU: 0 [ 46.911137] EIP is at setup_udp_tunnel_sock+0x6/0x4f [ 46.914070] EAX: 00000044 EBX: 00000001 ECX: cf05fef0 EDX: ca8142e0 [ 46.917236] ESI: c2c4505b EDI: cf05fef0 EBP: cf05fed0 ESP: cf05fed0 [ 46.919836] DS: 007b ES: 007b FS: 0000 GS: 00e0 SS: 0068 [ 46.922046] CR0: 80050033 CR2: 000001fc CR3: 02cec000 CR4: 000006b0 [ 46.924550] Stack: [ 46.926014] cf05ff10 c1fd4657 ca8142e0 0000000a 00000000 00000000 0000b712 00000008 [ 46.931274] 00000000 6bb5bd01 c1fd48de 00000000 00000000 cf05ff1c 00000000 00000000 [ 46.936122] cf05ff1c c1fd4bdf 00000000 cf05ff28 c2c4507b ffffffff cf05ff88 c2bf1c74 [ 46.942350] Call Trace: [ 46.944403] [<c1fd4657>] rxe_setup_udp_tunnel+0x8f/0x99 [ 46.947689] [<c1fd48de>] ? net_to_rxe+0x4e/0x4e [ 46.950567] [<c1fd4bdf>] rxe_net_init+0xe/0xa4 [ 46.953147] [<c2c4507b>] rxe_module_init+0x20/0x4c [ 46.955448] [<c2bf1c74>] do_one_initcall+0x89/0x113 [ 46.957797] [<c2bf15eb>] ? set_debug_rodata+0xf/0xf [ 46.959966] [<c2bf1dbc>] ? kernel_init_freeable+0xbe/0x15b [ 46.962262] [<c2bf1ddc>] kernel_init_freeable+0xde/0x15b [ 46.964418] [<c232eb54>] kernel_init+0x8/0xd0 [ 46.966618] [<c2333122>] ret_from_kernel_thread+0xe/0x24 [ 46.969592] [<c232eb4c>] ? rest_init+0x6f/0x6f Fixes: 8700e3e7c485 ("Soft RoCE driver") Signed-off-by: Yonatan Cohen <yonatanc@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-09-16IB/mlx5: Set source mac address in FTEMaor Gottlieb
Set the source mac address in the FTE when L2 specification is provided. Fixes: 038d2ef87572 ('IB/mlx5: Add flow steering support') Signed-off-by: Maor Gottlieb <maorg@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-09-16IB/mlx5: Enable MAD_IFC commands for IB ports onlyNoa Osherovich
MAD_IFC command is supported only for physical functions (PF) and when physical port is IB. The proposed fix enforces it. Fixes: d603c809ef91 ("IB/mlx5: Fix decision on using MAD_IFC") Reported-by: David Chang <dchang@suse.com> Signed-off-by: Noa Osherovich <noaos@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-09-16IB/mlx4: Diagnostic HW counters are not supported in slave modeKamal Heib
Modify the mlx4_ib_diag_counters() to avoid the following error in the hypervisor when the slave tries to query the hardware counters in SR-IOV mode. mlx4_core 0000:81:00.0: Unknown command:0x30 accepted from slave:1 Fixes: 3f85f2aaabf7 ("IB/mlx4: Add diagnostic hardware counters") Signed-off-by: Kamal Heib <kamalh@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-09-16IB/mlx4: Use correct subnet-prefix in QP1 mads under SR-IOVJack Morgenstein
When sending QP1 MAD packets which use a GRH, the source GID (which consists of the 64-bit subnet prefix, and the 64 bit port GUID) must be included in the packet GRH. For SR-IOV, a GID cache is used, since the source GID needs to be the slave's source GID, and not the Hypervisor's GID. This cache also included a subnet_prefix. Unfortunately, the subnet_prefix field in the cache was never initialized (to the default subnet prefix 0xfe80::0). As a result, this field remained all zeroes. Therefore, when SR-IOV was active, all QP1 packets which included a GRH had a source GID subnet prefix of all-zeroes. However, the subnet-prefix should initially be 0xfe80::0 (the default subnet prefix). In addition, if OpenSM modifies a port's subnet prefix, the new subnet prefix must be used in the GRH when sending QP1 packets. To fix this we now initialize the subnet prefix in the SR-IOV GID cache to the default subnet prefix. We update the cached value if/when OpenSM modifies the port's subnet prefix. We take this cached value when sending QP1 packets when SR-IOV is active. Note that the value is stored as an atomic64. This eliminates any need for locking when the subnet prefix is being updated. Note also that we depend on the FW generating the "port management change" event for tracking subnet-prefix changes performed by OpenSM. If running early FW (before 2.9.4630), subnet prefix changes will not be tracked (but the default subnet prefix still will be stored in the cache; therefore users who do not modify the subnet prefix will not have a problem). IF there is a need for such tracking also for early FW, we will add that capability in a subsequent patch. Fixes: 1ffeb2eb8be9 ("IB/mlx4: SR-IOV IB context objects and proxy/tunnel SQP support") Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-09-16IB/mlx4: Fix code indentation in QP1 MAD flowJack Morgenstein
The indentation in the QP1 GRH flow in procedure build_mlx_header is really confusing. Fix it, in preparation for a commit which touches this code. Fixes: 1ffeb2eb8be9 ("IB/mlx4: SR-IOV IB context objects and proxy/tunnel SQP support") Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-09-16IB/mlx4: Fix incorrect MC join state bit-masking on SR-IOVAlex Vesker
Because of an incorrect bit-masking done on the join state bits, when handling a join request we failed to detect a difference between the group join state and the request join state when joining as send only full member (0x8). This caused the MC join request not to be sent. This issue is relevant only when SRIOV is enabled and SM supports send only full member. This fix separates scope bits and join states bits a nibble each. Fixes: b9c5d6a64358 ('IB/mlx4: Add multicast group (MCG) paravirtualization for SR-IOV') Signed-off-by: Alex Vesker <valex@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-09-16IB/ipoib: Don't allow MC joins during light MC flushAlex Vesker
This fix solves a race between light flush and on the fly joins. Light flush doesn't set the device to down and unset IPOIB_OPER_UP flag, this means that if while flushing we have a MC join in progress and the QP was attached to BC MGID we can have a mismatches when re-attaching a QP to the BC MGID. The light flush would set the broadcast group to NULL causing an on the fly join to rejoin and reattach to the BC MCG as well as adding the BC MGID to the multicast list. The flush process would later on remove the BC MGID and detach it from the QP. On the next flush the BC MGID is present in the multicast list but not found when trying to detach it because of the previous double attach and single detach. [18332.714265] ------------[ cut here ]------------ [18332.717775] WARNING: CPU: 6 PID: 3767 at drivers/infiniband/core/verbs.c:280 ib_dealloc_pd+0xff/0x120 [ib_core] ... [18332.775198] Hardware name: Red Hat KVM, BIOS Bochs 01/01/2011 [18332.779411] 0000000000000000 ffff8800b50dfbb0 ffffffff813fed47 0000000000000000 [18332.784960] 0000000000000000 ffff8800b50dfbf0 ffffffff8109add1 0000011832f58300 [18332.790547] ffff880226a596c0 ffff880032482000 ffff880032482830 ffff880226a59280 [18332.796199] Call Trace: [18332.798015] [<ffffffff813fed47>] dump_stack+0x63/0x8c [18332.801831] [<ffffffff8109add1>] __warn+0xd1/0xf0 [18332.805403] [<ffffffff8109aebd>] warn_slowpath_null+0x1d/0x20 [18332.809706] [<ffffffffa025d90f>] ib_dealloc_pd+0xff/0x120 [ib_core] [18332.814384] [<ffffffffa04f3d7c>] ipoib_transport_dev_cleanup+0xfc/0x1d0 [ib_ipoib] [18332.820031] [<ffffffffa04ed648>] ipoib_ib_dev_cleanup+0x98/0x110 [ib_ipoib] [18332.825220] [<ffffffffa04e62c8>] ipoib_dev_cleanup+0x2d8/0x550 [ib_ipoib] [18332.830290] [<ffffffffa04e656f>] ipoib_uninit+0x2f/0x40 [ib_ipoib] [18332.834911] [<ffffffff81772a8a>] rollback_registered_many+0x1aa/0x2c0 [18332.839741] [<ffffffff81772bd1>] rollback_registered+0x31/0x40 [18332.844091] [<ffffffff81773b18>] unregister_netdevice_queue+0x48/0x80 [18332.848880] [<ffffffffa04f489b>] ipoib_vlan_delete+0x1fb/0x290 [ib_ipoib] [18332.853848] [<ffffffffa04df1cd>] delete_child+0x7d/0xf0 [ib_ipoib] [18332.858474] [<ffffffff81520c08>] dev_attr_store+0x18/0x30 [18332.862510] [<ffffffff8127fe4a>] sysfs_kf_write+0x3a/0x50 [18332.866349] [<ffffffff8127f4e0>] kernfs_fop_write+0x120/0x170 [18332.870471] [<ffffffff81207198>] __vfs_write+0x28/0xe0 [18332.874152] [<ffffffff810e09bf>] ? percpu_down_read+0x1f/0x50 [18332.878274] [<ffffffff81208062>] vfs_write+0xa2/0x1a0 [18332.881896] [<ffffffff812093a6>] SyS_write+0x46/0xa0 [18332.885632] [<ffffffff810039b7>] do_syscall_64+0x57/0xb0 [18332.889709] [<ffffffff81883321>] entry_SYSCALL64_slow_path+0x25/0x25 [18332.894727] ---[ end trace 09ebbe31f831ef17 ]--- Fixes: ee1e2c82c245 ("IPoIB: Refresh paths instead of flushing them on SM change events") Signed-off-by: Alex Vesker <valex@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-09-16IB/rxe: fix GFP_KERNEL in spinlock contextAlexey Khoroshilov
There is skb_clone(skb, GFP_KERNEL) in spinlock context in rxe_rcv_mcast_pkt(). Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> Acked-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-09-16Merge tag 'usb-serial-4.8-rc7' of ↵Greg Kroah-Hartman
git://git.kernel.org/pub/scm/linux/kernel/git/johan/usb-serial into usb-linus Johan writes: USB-serial fixes for v4.8-rc7 Here's another Infineon flashloader device id. Signed-off-by: Johan Hovold <johan@kernel.org>
2016-09-16Merge tag 'samsung-fixes-4.8-2' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux into fixes Pull "ARM: exynos: Fixes for v4.8, secound round" from Krzysztof Kozłowski: 1. A recent change in populating irqchip devices from Device Tree broke Suspend to RAM on Exynos boards due to lack of probing of PMU (Power Management Unit) driver. Multiple drivers attach to the PMU's DT node: irqchip, clock controller and PMU platform driver for handling suspend. The new irqchip code marked the PMU's DT node as OF_POPULATED but we need to attach to this node also PMU platform driver. 2. Add Javier as additional reviewer for Exynos patches. * tag 'samsung-fixes-4.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux: ARM: EXYNOS: Clear OF_POPULATED flag from PMU node in IRQ init callback MAINTAINERS: Add myself as reviewer for Samsung Exynos support
2016-09-16USB: change bInterval default to 10 msAlan Stern
Some full-speed mceusb infrared transceivers contain invalid endpoint descriptors for their interrupt endpoints, with bInterval set to 0. In the past they have worked out okay with the mceusb driver, because the driver sets the bInterval field in the descriptor to 1, overwriting whatever value may have been there before. However, this approach was never sanctioned by the USB core, and in fact it does not work with xHCI controllers, because they use the bInterval value that was present when the configuration was installed. Currently usbcore uses 32 ms as the default interval if the value in the endpoint descriptor is invalid. It turns out that these IR transceivers don't work properly unless the interval is set to 10 ms or below. To work around this mceusb problem, this patch changes the endpoint-descriptor parsing routine, making the default interval value be 10 ms rather than 32 ms. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Tested-by: Wade Berrier <wberrier@gmail.com> CC: <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-16usb: musb: Fix tusb6010 compile error on blackfinTony Lindgren
We have CONFIG_BLACKFIN ifdef redefining all musb registers in musb_regs.h and tusb6010.h is never included causing a build error with blackfin-allmodconfig and COMPILE_TEST. Let's fix the issue by not building tusb6010 if CONFIG_BLACKFIN is selected. Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2016-09-16perf/x86/amd: Make HW_CACHE_REFERENCES and HW_CACHE_MISSES measure L2Matt Fleming
While the Intel PMU monitors the LLC when perf enables the HW_CACHE_REFERENCES and HW_CACHE_MISSES events, these events monitor L1 instruction cache fetches (0x0080) and instruction cache misses (0x0081) on the AMD PMU. This is extremely confusing when monitoring the same workload across Intel and AMD machines, since parameters like, $ perf stat -e cache-references,cache-misses measure completely different things. Instead, make the AMD PMU measure instruction/data cache and TLB fill requests to the L2 and instruction/data cache and TLB misses in the L2 when HW_CACHE_REFERENCES and HW_CACHE_MISSES are enabled, respectively. That way the events measure unified caches on both platforms. Signed-off-by: Matt Fleming <matt@codeblueprint.co.uk> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: <stable@vger.kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1472044328-21302-1-git-send-email-matt@codeblueprint.co.uk Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-09-16perf/x86/intel/pt: Do validate the size of a kernel address filterAlexander Shishkin
Right now, the kernel address filters in PT are prone to integer overflow that may happen in adding filter's size to its offset to obtain the end of the range. Such an overflow would also throw a #GP in the PT event configuration path. Fix this by explicitly validating the result of this calculation. Reported-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: stable@vger.kernel.org # v4.7 Cc: stable@vger.kernel.org#v4.7 Cc: vince@deater.net Link: http://lkml.kernel.org/r/20160915151352.21306-4-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-09-16perf/x86/intel/pt: Fix kernel address filter's offset validationAlexander Shishkin
The kernel_ip() filter is used mostly by the DS/LBR code to look at the branch addresses, but Intel PT also uses it to validate the address filter offsets for kernel addresses, for which it is not sufficient: supplying something in bits 64:48 that's not a sign extension of the lower address bits (like 0xf00d000000000000) throws a #GP. This patch adds address validation for the user supplied kernel filters. Reported-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: stable@vger.kernel.org # v4.7 Cc: stable@vger.kernel.org#v4.7 Cc: vince@deater.net Link: http://lkml.kernel.org/r/20160915151352.21306-3-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-09-16perf/x86/intel/pt: Fix an off-by-one in address filter configurationAlexander Shishkin
PT address filter configuration requires that a range is specified by its first and last address, but at the moment we're obtaining the end of the range by adding user specified size to its start, which is off by one from what it actually needs to be. Fix this and make sure that zero-sized filters don't pass the filter validation. Reported-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vince Weaver <vincent.weaver@maine.edu> Cc: stable@vger.kernel.org # v4.7 Cc: stable@vger.kernel.org#v4.7 Cc: vince@deater.net Link: http://lkml.kernel.org/r/20160915151352.21306-2-alexander.shishkin@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
2016-09-16Merge branch 'qeth-fixes'David S. Miller
Ursula Braun says: ==================== 390: qeth patches here are several fixes for the s390 qeth driver, built for net. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16s390/qeth: fix setting VIPA addressThomas Richter
commit 5f78e29ceebf ("qeth: optimize IP handling in rx_mode callback") restructured the internal address handling. This work broke setting a virtual IP address. The command echo 10.1.1.1 > /sys/bus/ccwgroup/devices/<device>/vipa/add4 fails with file exist error even if the IP address has not been set before. It turned out that the search result for the IP address search is handled incorrectly in the VIPA case. This patch fixes the setting of an virtual IP address. Signed-off-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16qeth: do not turn on SG per defaultUrsula Braun
According to recent performance measurements, turning on net_device feature NETIF_F_SG only behaves well, but turning on feature NETIF_F_GSO shows bad results. Since the kernel activates NETIF_F_GSO automatically as soon as the driver configures feature NETIF_F_SG, qeth should not activate feature NETIF_F_SG per default, until the qeth problems with NETIF_F_GSO are solved. Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16qeth: do not limit number of gso segmentsUrsula Braun
To reduce the need of skb_linearize() calls, gso_max_segs of qeth net_devices had been limited according to the maximum number of qdio SBAL elements. But a gso segment cannot be larger than the mtu-size, while an SBAL element can contain up to 4096 bytes. The gso_max_segs limitation limits the maximum packet size given to the qeth driver. Performance measurements with tso-enabled qeth network interfaces and mtu-size 1500 showed, that the disadvantage of smaller packets is much more severe than the advantage of fewer skb_linearize() calls. This patch gets rid of the gso_max_segs limitations in the qeth driver. Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16qeth: check not more than 16 SBALEs on the completion queueUrsula Braun
af_iucv socket programs with HiperSockets as transport make use of the qdio completion queue. Running such an af_iucv socket program may result in a crash: [90341.677709] Oops: 0038 ilc:2 [#1] SMP [90341.677743] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 4.6.0-20160720.0.0e86ec7.5e62689.fc23.s390xperformance #1 [90341.677744] Hardware name: IBM 2964 N96 703 (LPAR) [90341.677746] task: 00000000edb79f00 ti: 00000000edb84000 task.ti: 00000000edb84000 [90341.677748] Krnl PSW : 0704d00180000000 000000000075bc50 (qeth_qdio_input_handler+0x258/0x4e0) [90341.677756] R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:3 CC:1 PM:0 RI:0 EA:3 Krnl GPRS: 000003d10391e900 0000000000000001 00000000e61e6000 0000000000000005 [90341.677759] 0000000000a9e6ec 5420040001a77400 0000000000000001 000000000000006f [90341.677761] 00000000e0d83f00 0000000000000003 0000000000000010 5420040001a77400 [90341.677784] 000000007ba8b000 0000000000943fd0 000000000075bc4e 00000000ed3b3c10 [90341.677793] Krnl Code: 000000000075bc42: e320cc180004 lg %r2,3096(%r12) 000000000075bc48: c0e5ffffc5cc brasl %r14,7547e0 #000000000075bc4e: 1816 lr %r1,%r6 >000000000075bc50: ba19b008 cs %r1,%r9,8(%r11) 000000000075bc54: ec180041017e cij %r1,1,8,75bcd6 000000000075bc5a: 5810b008 l %r1,8(%r11) 000000000075bc5e: ec16005c027e cij %r1,2,6,75bd16 000000000075bc64: 5090b008 st %r9,8(%r11) [90341.677807] Call Trace: [90341.677810] ([<000000000075bbc0>] qeth_qdio_input_handler+0x1c8/0x4e0) [90341.677812] ([<000000000070efbc>] qdio_kick_handler+0x124/0x2a8) [90341.677814] ([<0000000000713570>] __tiqdio_inbound_processing+0xf0/0xcd0) [90341.677818] ([<0000000000143312>] tasklet_action+0x92/0x120) [90341.677823] ([<00000000008b6e72>] __do_softirq+0x112/0x308) [90341.677824] ([<0000000000142bce>] irq_exit+0xd6/0xf8) [90341.677829] ([<000000000010b1d2>] do_IRQ+0x6a/0x88) [90341.677830] ([<00000000008b6322>] io_int_handler+0x112/0x220) [90341.677832] ([<0000000000102b2e>] enabled_wait+0x56/0xa8) [90341.677833] ([<0000000000000000>] (null)) [90341.677835] ([<0000000000102e32>] arch_cpu_idle+0x32/0x48) [90341.677838] ([<000000000018a126>] cpu_startup_entry+0x266/0x2b0) [90341.677841] ([<0000000000113b38>] smp_start_secondary+0x100/0x110) [90341.677843] ([<00000000008b68a6>] restart_int_handler+0x62/0x78) [90341.677845] ([<00000000008b6588>] psw_idle+0x3c/0x40) [90341.677846] Last Breaking-Event-Address: [90341.677848] [<00000000007547ec>] qeth_dbf_longtext+0xc/0xc0 [90341.677849] [90341.677850] Kernel panic - not syncing: Fatal exception in interrupt qeth_qdio_cq_handler() analyzes SBALs on this completion queue, but does not observe the limit of 16 SBAL elements per SBAL. This patch adds the additional check to process not more than 16 SBAL elements. Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16s390/qeth: allow hsuid configuration in DOWN stateUrsula Braun
The qeth IP address mapping logic has been reworked recently. It causes now problems to specify qeth sysfs attribute "hsuid" in DOWN state, which is allowed. Postpone registering or deregistering of IP-addresses in this case. Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Reviewed-by: Thomas Richter <tmricht@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16s390/qeth: use ip_lock for hsuid configurationUrsula Braun
qeth_l3_dev_hsuid_store() changes the ip hash table, which requires the ip_lock. Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16qeth: restore device features after recoveryHans Wippel
After device recovery, only a basic set of network device features is enabled on the device. If features like checksum offloading or TSO were enabled by the user before the recovery, this results in a mismatch between the network device features, that the kernel assumes to be enabled on the device, and the features actually enabled on the device. This patch tries to restore previously set features, that require changes on the device, after the recovery of a device. In case of an error, the network device's features are changed to contain only the features that are actually turned on. Signed-off-by: Hans Wippel <hwippel@linux.vnet.ibm.com> Signed-off-by: Ursula Braun <ubraun@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16nfp: fix error return code in nfp_net_netdev_open()Wei Yongjun
Fix to return a negative error code from the error handling case instead of 0, as done elsewhere in this function. Fixes: 73725d9dfd99 ("nfp: allocate ring SW structs dynamically") Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16net: VRF: Pass original iif to ip_route_input()Mark Tomlinson
The function ip_rcv_finish() calls l3mdev_ip_rcv(). On any VRF except the global VRF, this replaces skb->dev with the VRF master interface. When calling ip_route_input_noref() from here, the checks for forwarding look at this master device instead of the initial ingress interface. This will allow packets to be routed which normally would be dropped. For example, an interface that is not assigned an IP address should drop packets, but because the checking is against the master device, the packet will be forwarded. The fix here is to still call l3mdev_ip_rcv(), but remember the initial net_device. This is passed to the other functions within ip_rcv_finish, so they still see the original interface. Signed-off-by: Mark Tomlinson <mark.tomlinson@alliedtelesis.co.nz> Acked-by: David Ahern <dsa@cumulusnetworks.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16net/ibm/emac: add mutex to 'set multicast list'Ivan Mikhaylov
for preventing race conditions within ioctl calls. Signed-off-by: Ivan Mikhaylov <ivan@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16net/ibm/emac: add set mac addr callbackIvan Mikhaylov
add realization for mac address set and remove dummy callback. Signed-off-by: Ivan Mikhaylov <ivan@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16net: ethernet: mediatek: fix module loading automatically based on ↵Sean Wang
MODULE_DEVICE_TABLE The device table is required to load modules based on modaliases. After adding MODULE_DEVICE_TABLE, below entries for example will be added to modules.alias: alias of:N*T*Cmediatek,mt7623-ethC* mtk_eth_soc Signed-off-by: Sean Wang <sean.wang@mediatek.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16Merge tag 'batadv-net-for-davem-20160914' of git://git.open-mesh.org/linux-mergeDavid S. Miller
Simon Wunderlich says: ==================== Here are two batman-adv bugfix patches: - Fix reference counting for last_bonding_candidate, by Sven Eckelmann - Fix head room reservation for ELP packets, by Linus Luessing ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16net/mlx4_en: fix off by one in error handlingSebastian Ott
If an error occurs in mlx4_init_eq_table the index used in the err_out_unmap label is one too big which results in a panic in mlx4_free_eq. This patch fixes the index in the error path. Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Reviewed-by: Tariq Toukan <tariqt@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16Merge tag 'mac80211-for-davem-2016-09-13' of ↵David S. Miller
git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211 Johannes Berg says: ==================== A few more fixes: * better mesh path fixing, from Thomas * fix TIM IE recalculation after sending frames to a sleeping station, from Felix * fix sequence number assignment while sending frames to a sleeping station, also from Felix * validate number of probe response CSA counter offsets, fixing a copy/paste bug (from myself) ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
2016-09-16PM / runtime: Use _rcuidle for runtime suspend tracepointsPaul E. McKenney
Further testing with false negatives suppressed by commit 293e2421fe25 ("rcu: Remove superfluous versions of rcu_read_lock_sched_held()") identified a few more unprotected uses of RCU from the idle loop. Because RCU actively ignores idle-loop code (for energy-efficiency reasons, among other things), using RCU from the idle loop can result in too-short grace periods, in turn resulting in arbitrary misbehavior. The affected function is rpm_suspend(). The resulting lockdep-RCU splat is as follows: ------------------------------------------------------------------------ Warning from omap3 =============================== [ INFO: suspicious RCU usage. ] 4.6.0-rc5-next-20160426+ #1112 Not tainted ------------------------------- include/trace/events/rpm.h:63 suspicious rcu_dereference_check() usage! other info that might help us debug this: RCU used illegally from idle CPU! rcu_scheduler_active = 1, debug_locks = 0 RCU used illegally from extended quiescent state! 1 lock held by swapper/0/0: #0: (&(&dev->power.lock)->rlock){-.-...}, at: [<c052ee24>] __pm_runtime_suspend+0x54/0x84 stack backtrace: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.6.0-rc5-next-20160426+ #1112 Hardware name: Generic OMAP36xx (Flattened Device Tree) [<c0110308>] (unwind_backtrace) from [<c010c3a8>] (show_stack+0x10/0x14) [<c010c3a8>] (show_stack) from [<c047fec8>] (dump_stack+0xb0/0xe4) [<c047fec8>] (dump_stack) from [<c052d7b4>] (rpm_suspend+0x604/0x7e4) [<c052d7b4>] (rpm_suspend) from [<c052ee34>] (__pm_runtime_suspend+0x64/0x84) [<c052ee34>] (__pm_runtime_suspend) from [<c04bf3bc>] (omap2_gpio_prepare_for_idle+0x5c/0x70) [<c04bf3bc>] (omap2_gpio_prepare_for_idle) from [<c01255e8>] (omap_sram_idle+0x140/0x244) [<c01255e8>] (omap_sram_idle) from [<c0126b48>] (omap3_enter_idle_bm+0xfc/0x1ec) [<c0126b48>] (omap3_enter_idle_bm) from [<c0601db8>] (cpuidle_enter_state+0x80/0x3d4) [<c0601db8>] (cpuidle_enter_state) from [<c0183c74>] (cpu_startup_entry+0x198/0x3a0) [<c0183c74>] (cpu_startup_entry) from [<c0b00c0c>] (start_kernel+0x354/0x3c8) [<c0b00c0c>] (start_kernel) from [<8000807c>] (0x8000807c) ------------------------------------------------------------------------ Reported-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Tested-by: Tony Lindgren <tony@atomide.com> Tested-by: Guenter Roeck <linux@roeck-us.net> [ rjw: Subject ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2016-09-15aio: mark AIO pseudo-fs noexecJann Horn
This ensures that do_mmap() won't implicitly make AIO memory mappings executable if the READ_IMPLIES_EXEC personality flag is set. Such behavior is problematic because the security_mmap_file LSM hook doesn't catch this case, potentially permitting an attacker to bypass a W^X policy enforced by SELinux. I have tested the patch on my machine. To test the behavior, compile and run this: #define _GNU_SOURCE #include <unistd.h> #include <sys/personality.h> #include <linux/aio_abi.h> #include <err.h> #include <stdlib.h> #include <stdio.h> #include <sys/syscall.h> int main(void) { personality(READ_IMPLIES_EXEC); aio_context_t ctx = 0; if (syscall(__NR_io_setup, 1, &ctx)) err(1, "io_setup"); char cmd[1000]; sprintf(cmd, "cat /proc/%d/maps | grep -F '/[aio]'", (int)getpid()); system(cmd); return 0; } In the output, "rw-s" is good, "rwxs" is bad. Signed-off-by: Jann Horn <jann@thejh.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-09-15Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm fix from Paolo Bonzini: "One fix for an x86 regression in VM migration, mostly visible with Windows because it uses RTC periodic interrupts" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: kvm: x86: correctly reset dest_map->vector when restoring LAPIC state
2016-09-15vfs: cap dedupe request structure size at PAGE_SIZEDarrick J. Wong
Kirill A Shutemov reports that the kernel doesn't try to cap dest_count in any way, and uses the number to allocate kernel memory. This causes high order allocation warnings in the kernel log if someone passes in a big enough value. We should clamp the allocation at PAGE_SIZE to avoid stressing the VM. The two existing users of the dedupe ioctl never send more than 120 requests, so we can safely clamp dest_range at PAGE_SIZE, because with 4k pages we can handle up to 127 dedupe candidates. Given the max extent length of 16MB, we can end up doing 2GB of IO which is plenty. [ Note: the "offsetof()" can't overflow, because 'count' is just a 16-bit integer. That's not obvious in the limited context of the patch, so I'm noting it here because it made me go look. - Linus ] Reported-by: "Kirill A. Shutemov" <kirill@shutemov.name> Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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