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2018-09-05USB: Add quirk to support DJI CineSSDTim Anderson
This device does not correctly handle the LPM operations. Also, the device cannot handle ATA pass-through commands and locks up when attempted while running in super speed. This patch adds the equivalent quirk logic as found in uas. Signed-off-by: Tim Anderson <tsa@biglakesoftware.com> Acked-by: Alan Stern <stern@rowland.harvard.edu> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05usb: typec: fix kernel-doc parameter warningRandy Dunlap
Fix kernel-doc warning (13 times): ../drivers/usb/typec/class.c:1497: warning: Excess function parameter 'drvdata' description in 'typec_port_register_altmode' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05usb/dwc3/gadget: fix kernel-doc parameter warningRandy Dunlap
Fix kernel-doc warning: ../drivers/usb/dwc3/gadget.c:510: warning: Excess function parameter 'dwc' description in 'dwc3_gadget_start_config' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Felipe Balbi <balbi@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05USB: yurex: Check for truncation in yurex_read()Ben Hutchings
snprintf() always returns the full length of the string it could have printed, even if it was truncated because the buffer was too small. So in case the counter value is truncated, we will over-read from in_buffer and over-write to the caller's buffer. I don't think it's actually possible for this to happen, but in case truncation occurs, WARN and return -EIO. Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05USB: yurex: Fix buffer over-read in yurex_write()Ben Hutchings
If the written data starts with a digit, yurex_write() tries to parse it as an integer using simple_strtoull(). This requires a null- terminator, and currently there's no guarantee that there is one. (The sample program at https://github.com/NeoCat/YUREX-driver-for-Linux/blob/master/sample/yurex_clock.pl writes an integer without a null terminator. It seems like it must have worked by chance!) Always add a null byte after the written data. Enlarge the buffer to allow for this. Cc: stable@vger.kernel.org Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05usb: host: xhci-plat: Iterate over parent nodes for finding quirksAnurag Kumar Vulisha
In xhci_plat_probe() both sysdev and pdev->dev are being used for finding quirks. There are some drivers(like dwc3 host.c) which adds quirks(like usb3-lpm-capable) into pdev and the logic present in xhci_plat_probe() checks for quirks in either sysdev or pdev for finding the quirks. Because of this logic, some of the quirks are getting missed(usb3-lpm-capable quirk added by dwc3 host.c driver is getting missed).This patch fixes this by iterating over all the available parents for finding the quirks. In this way all the quirks which are present in child or parent are correctly updated. Signed-off-by: Anurag Kumar Vulisha <anurag.kumar.vulisha@xilinx.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05xhci: Fix use after free for URB cancellation on a reallocated endpointMathias Nyman
Make sure the cancelled URB is on the current endpoint ring. If the endpoint ring has been reallocated since the URB was enqueued then the URB may contain TD and TRB pointers to a already freed ring. In this the case return the URB without touching any of the freed ring structure data. Don't try to stop the ring. It would be useless. This can occur if endpoint is not flushed before it is dropped and re-added, which is the case in usb_set_interface() as xhci does things in an odd order. Cc: <stable@vger.kernel.org> Tested-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05USB: add quirk for WORLDE Controller KS49 or Prodipe MIDI 49C USB controllerMaxence Duprès
WORLDE Controller KS49 or Prodipe MIDI 49C USB controller cause a -EPROTO error, a communication restart and loop again. This issue has already been fixed for KS25. https://lore.kernel.org/patchwork/patch/753077/ I just add device 201 for KS49 in quirks.c to get it works. Signed-off-by: Laurent Roux <xpros64@hotmail.fr> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-05drm/i915: Reduce context HW ID lifetimeChris Wilson
Future gen reduce the number of bits we will have available to differentiate between contexts, so reduce the lifetime of the ID assignment from that of the context to its current active cycle (i.e. only while it is pinned for use by the HW, will it have a constant ID). This means that instead of a max of 2k allocated contexts (worst case before fun with bit twiddling), we instead have a limit of 2k in flight contexts (minus a few that have been pinned by the kernel or by perf). To reduce the number of contexts id we require, we allocate a context id on first and mark it as pinned for as long as the GEM context itself is, that is we keep it pinned it while active on each engine. If we exhaust our context id space, then we try to reclaim an id from an idle context. In the extreme case where all context ids are pinned by active contexts, we force the system to idle in order to recover ids. We cannot reduce the scope of an HW-ID to an engine (allowing the same gem_context to have different ids on each engine) as in the future we will need to preassign an id before we know which engine the context is being executed on. v2: Improved commentary (Tvrtko) [I tried at least] References: https://bugs.freedesktop.org/show_bug.cgi?id=107788 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Cc: Michel Thierry <michel.thierry@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180904153117.3907-1-chris@chris-wilson.co.uk
2018-09-05drm/rockchip: vop: add rk3188 vop definitionsHeiko Stuebner
The rk3188 has 2 vops not using iommus which only output directly to a rgb interface per vop. So all other output modes like hdmi are provided by external brige chips. Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Sandy Huang <hjc@rock-chips.com> Acked-by: Rob Herring <robh@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20180830110937.1739-1-heiko@sntech.de
2018-09-05drm/rockchip: vop: Add directly output rgb feature for px30Sandy Huang
Add this feature bit indicate px30 vop can directly output parallel or serial rgb data. Signed-off-by: Sandy Huang <hjc@rock-chips.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20180830211207.10480-4-heiko@sntech.de
2018-09-05drm/rockchip: Add support for Rockchip Soc RGB output interfaceSandy Huang
Some Rockchip CRTCs, like rv1108 and px30, can directly output parallel and serial RGB data to panel or conversion chip. So add a feature-bit for vops to mark the ability for these direct outputs and add an internal encoder in that case, that can attach to bridge chipsor panels. Changes in v7: 1. forget to delete rockchip_rgb_driver and delete it. Changes in v6: 1. Update according to Heiko Stuebner' implemention, rgb output is part of vop's feature, should not register as a independent driver. Changes in v5: 1. add SPDX-License-Identifier tag Changes in v4: 1. add support px30; Changes in v3: 1. update for rgb-mode move to panel node. Changes in v2: 1. add error log when probe failed; 2. update name_to_output_mode() according to sean's suggest; 3. Fix uninitialized use of ret. Signed-off-by: Sandy Huang <hjc@rock-chips.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20180830211207.10480-3-heiko@sntech.de
2018-09-05drm/rockchip: add function to check if endpoint is a subdriverHeiko Stuebner
To be able to have both internal subdrivers and external bridge drivers as output endpoints of vops, add a function to be able to distinguish these. changes in v8: - improved function documentation - better error handling - put calls for node and pdev references changes in v6: - added function to check subdriver vs. bridge Signed-off-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Sandy Huang <hjc@rock-chips.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180830211207.10480-2-heiko@sntech.de
2018-09-05usb: dwc2: Fix call location of dwc2_check_core_endiannessBruno Meirelles Herrera
Some SoC/IP as STM32F469, the snpsid can only be read after clock is enabled, otherwise it will read as 0, and the dwc2_check_core_endianness will assume the core and AHB have opposite endianness, leading to the following error: [ 1.976339] dwc2 50000000.usb: 50000000.usb supply vusb_d not found, using dummy regulator [ 1.986124] dwc2 50000000.usb: Linked as a consumer to regulator.0 [ 1.992711] dwc2 50000000.usb: 50000000.usb supply vusb_a not found, using dummy regulator [ 2.003672] dwc2 50000000.usb: dwc2_core_reset: HANG! AHB Idle timeout GRSTCTL GRSTCTL_AHBIDLE [ 2.015176] dwc2: probe of 50000000.usb failed with error -16 The proposed patch changes the location where dwc2_check_core_endianness is called, allowing the clock peripheral to be enabled first. Acked-by: Minas Harutyunyan <hminas@synopsys.com> Tested-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Bruno Meirelles Herrera <bmh@certi.org.br> Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
2018-09-05HID: sensor-hub: Restore fixup for Lenovo ThinkPad Helix 2 sensor hub reportHans de Goede
Commit b0f847e16c1e ("HID: hid-sensor-hub: Force logical minimum to 1 for power and report state") not only replaced the descriptor fixup done for devices with the HID_SENSOR_HUB_ENUM_QUIRK with a generic fix, but also accidentally removed the unrelated descriptor fixup for the Lenovo ThinkPad Helix 2 sensor hub. This commit restores this fixup. Restoring this fixup not only fixes the Lenovo ThinkPad Helix 2's sensors, but also the Lenovo ThinkPad 8's sensors. Fixes: b0f847e16c1e ("HID: hid-sensor-hub: Force logical minimum ...") Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: Fernando D S Lima <fernandodsl@gmail.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-09-05HID: core: fix NULL pointer dereferenceGustavo A. R. Silva
There is a NULL pointer dereference in case memory resources for *parse* are not successfully allocated. Fix this by adding a new goto label and make the execution path jump to it in case vzalloc() fails. Addresses-Coverity-ID: 1473081 ("Dereference after null check") Fixes: b2dd9f2e5a8a ("HID: core: fix memory leak on probe") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Stefan Agner <stefan@agner.ch> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-09-05drm/sun4i: Add support for HDMI voltage regulatorJernej Skrabec
Some boards have HDMI VCC pin connected to voltage regulator which may not be turned on by default. Add support for such boards by adding voltage regulator handling code to HDMI driver. Signed-off-by: Jernej Skrabec <jernej.skrabec@siol.net> [Icenowy: change supply name to "hvcc"] Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180904044053.15425-11-icenowy@aosc.io
2018-09-05drm/sun4i: Add support for A64 display engineJagan Teki
Display Engine(DE2) in Allwinner A64 has two mixers and tcons. The routing for mixer0 is through tcon0 and connected to LVDS/RGB/MIPI-DSI controller. The routing for mixer1 is through tcon1 and connected to HDMI. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180904044053.15425-6-icenowy@aosc.io
2018-09-05drm/sun4i: Add support for A64 mixersJagan Teki
Mixers in Allwinner have similar capabilities as others SoCs with DE2. Add support for them. Signed-off-by: Jagan Teki <jagan@amarulasolutions.com> [Icenowy: Add mixer1] Signed-off-by: Icenowy Zheng <icenowy@aosc.io> Reviewed-by: Jernej Skrabec <jernej.skrabec@siol.net> Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180904044053.15425-5-icenowy@aosc.io
2018-09-05mmc: meson-mx-sdio: fix OF child-node lookupJohan Hovold
Use the new of_get_compatible_child() helper to lookup the slot child node instead of using of_find_compatible_node(), which searches the entire tree from a given start node and thus can return an unrelated (i.e. non-child) node. This also addresses a potential use-after-free (e.g. after probe deferral) as the tree-wide helper drops a reference to its first argument (i.e. the node of the device being probed). While at it, also fix up the related slot-node reference leak. Fixes: ed80a13bb4c4 ("mmc: meson-mx-sdio: Add a driver for the Amlogic Meson8 and Meson8b SoCs") Cc: stable <stable@vger.kernel.org> # 4.15 Cc: Carlo Caione <carlo@endlessm.com> Cc: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Cc: Ulf Hansson <ulf.hansson@linaro.org> Acked-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com> Signed-off-by: Johan Hovold <johan@kernel.org> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-09-05dma-buf/udmabuf: Fix NULL pointer dereference in udmabuf_createGustavo A. R. Silva
There is a potential execution path in which pointer memfd is NULL when passed as argument to fput(), hence there is a NULL pointer dereference in fput(). Fix this by null checking *memfd* before calling fput(). Addresses-Coverity-ID: 1473174 ("Explicit null dereferenced") Fixes: fbb0de795078 ("Add udmabuf misc device") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Link: http://patchwork.freedesktop.org/patch/msgid/20180904190749.GA9308@embeddedor.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-09-05drm/virtio: add iommu support.Gerd Hoffmann
Use the dma mapping api and properly add iommu mappings for objects, unless virtio is in iommu quirk mode. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Dave Airlie <airlied@redhat.com> Link: http://patchwork.freedesktop.org/patch/msgid/20180829122026.27012-3-kraxel@redhat.com
2018-09-05drm/virtio: add virtio_gpu_object_detach() functionGerd Hoffmann
The new function balances virtio_gpu_object_attach(). Also make virtio_gpu_cmd_resource_inval_backing() static and switch call sites to the new virtio_gpu_object_attach() function. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Dave Airlie <airlied@redhat.com> Link: http://patchwork.freedesktop.org/patch/msgid/20180829122026.27012-2-kraxel@redhat.com
2018-09-05drm/virtio: track virtual output stateGerd Hoffmann
Track whenever an virtual output (crtc) is enabled or disabled. On atomic updates check for both framebuffer being present and crtc being enabled to figure whenever the output is active or not. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Dave Airlie <airlied@redhat.com> Link: http://patchwork.freedesktop.org/patch/msgid/20180813152855.12863-1-kraxel@redhat.com
2018-09-05qxl: fix null-pointer crash during suspendPeter Wu
"crtc->helper_private" is not initialized by the QXL driver and thus the "crtc_funcs->disable" call would crash (resulting in suspend failure). Fix this by converting the suspend/resume functions to use the drm_mode_config_helper_* helpers. Tested system sleep with QEMU 3.0 using "echo mem > /sys/power/state". During suspend the following message is visible from QEMU: spice/server/display-channel.c:2425:display_channel_validate_surface: canvas address is 0x7fd05da68308 for 0 (and is NULL) spice/server/display-channel.c:2426:display_channel_validate_surface: failed on 0 This seems to be triggered by QXL_IO_NOTIFY_CMD after QXL_IO_DESTROY_PRIMARY_ASYNC, but aside from the warning things still seem to work (tested with both the GTK and -spice options). Signed-off-by: Peter Wu <peter@lekensteyn.nl> Link: http://patchwork.freedesktop.org/patch/msgid/20180904202747.14968-1-peter@lekensteyn.nl Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-09-04Merge branch 'akpm' (patches from Andrew)Linus Torvalds
Merge misc fixes from Andrew Morton: "17 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: nilfs2: convert to SPDX license tags drivers/dax/device.c: convert variable to vm_fault_t type lib/Kconfig.debug: fix three typos in help text checkpatch: add __ro_after_init to known $Attribute mm: fix BUG_ON() in vmf_insert_pfn_pud() from VM_MIXEDMAP removal uapi/linux/keyctl.h: don't use C++ reserved keyword as a struct member name memory_hotplug: fix kernel_panic on offline page processing checkpatch: add optional static const to blank line declarations test ipc/shm: properly return EIDRM in shm_lock() mm/hugetlb: filter out hugetlb pages if HUGEPAGE migration is not supported. mm/util.c: improve kvfree() kerneldoc tools/vm/page-types.c: fix "defined but not used" warning tools/vm/slabinfo.c: fix sign-compare warning kmemleak: always register debugfs file mm: respect arch_dup_mmap() return value mm, oom: fix missing tlb_finish_mmu() in __oom_reap_task_mm(). mm: memcontrol: print proper OOM header when no eligible victim left
2018-09-04drivers/dax/device.c: convert variable to vm_fault_t typeSouptick Joarder
As part of 226ab561075f ("device-dax: Convert to vmf_insert_mixed and vm_fault_t") in 4.19-rc1, 'rc' was not converted to vm_fault_t. Now converted. Link: http://lkml.kernel.org/r/20180830153813.GA26059@jordon-HP-15-Notebook-PC Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com> Cc: Dan Williams <dan.j.williams@intel.com> Cc: Dave Jiang <dave.jiang@intel.com> Cc: Ross Zwisler <zwisler@kernel.org> Cc: Vishal Verma <vishal.l.verma@intel.com> Cc: Matthew Wilcox <willy@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-09-04memory_hotplug: fix kernel_panic on offline page processingMikhail Zaslonko
Within show_valid_zones() the function test_pages_in_a_zone() should be called for online memory blocks only. Otherwise it might lead to the VM_BUG_ON due to uninitialized struct pages (when CONFIG_DEBUG_VM_PGFLAGS kernel option is set): page dumped because: VM_BUG_ON_PAGE(PagePoisoned(p)) ------------[ cut here ]------------ Call Trace: ([<000000000038f91e>] test_pages_in_a_zone+0xe6/0x168) [<0000000000923472>] show_valid_zones+0x5a/0x1a8 [<0000000000900284>] dev_attr_show+0x3c/0x78 [<000000000046f6f0>] sysfs_kf_seq_show+0xd0/0x150 [<00000000003ef662>] seq_read+0x212/0x4b8 [<00000000003bf202>] __vfs_read+0x3a/0x178 [<00000000003bf3ca>] vfs_read+0x8a/0x148 [<00000000003bfa3a>] ksys_read+0x62/0xb8 [<0000000000bc2220>] system_call+0xdc/0x2d8 That VM_BUG_ON was triggered by the page poisoning introduced in mm/sparse.c with the git commit d0dc12e86b31 ("mm/memory_hotplug: optimize memory hotplug"). With the same commit the new 'nid' field has been added to the struct memory_block in order to store and later on derive the node id for offline pages (instead of accessing struct page which might be uninitialized). But one reference to nid in show_valid_zones() function has been overlooked. Fixed with current commit. Also, nr_pages will not be used any more after test_pages_in_a_zone() call, do not update it. Link: http://lkml.kernel.org/r/20180828090539.41491-1-zaslonko@linux.ibm.com Fixes: d0dc12e86b31 ("mm/memory_hotplug: optimize memory hotplug") Signed-off-by: Mikhail Zaslonko <zaslonko@linux.ibm.com> Acked-by: Michal Hocko <mhocko@suse.com> Reviewed-by: Pavel Tatashin <pavel.tatashin@microsoft.com> Cc: <stable@vger.kernel.org> [4.17+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2018-09-04iw_cxgb4: only allow 1 flush on user qpsSteve Wise
Once the qp has been flushed, it cannot be flushed again. The user qp flush logic wasn't enforcing it however. The bug can cause touch-after-free crashes like: Unable to handle kernel paging request for data at address 0x000001ec Faulting instruction address: 0xc008000016069100 Oops: Kernel access of bad area, sig: 11 [#1] ... NIP [c008000016069100] flush_qp+0x80/0x480 [iw_cxgb4] LR [c00800001606cd6c] c4iw_modify_qp+0x71c/0x11d0 [iw_cxgb4] Call Trace: [c00800001606cd6c] c4iw_modify_qp+0x71c/0x11d0 [iw_cxgb4] [c00800001606e868] c4iw_ib_modify_qp+0x118/0x200 [iw_cxgb4] [c0080000119eae80] ib_security_modify_qp+0xd0/0x3d0 [ib_core] [c0080000119c4e24] ib_modify_qp+0xc4/0x2c0 [ib_core] [c008000011df0284] iwcm_modify_qp_err+0x44/0x70 [iw_cm] [c008000011df0fec] destroy_cm_id+0xcc/0x370 [iw_cm] [c008000011ed4358] rdma_destroy_id+0x3c8/0x520 [rdma_cm] [c0080000134b0540] ucma_close+0x90/0x1b0 [rdma_ucm] [c000000000444da4] __fput+0xe4/0x2f0 So fix flush_qp() to only flush the wq once. Cc: stable@vger.kernel.org Signed-off-by: Steve Wise <swise@opengridcomputing.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-04IB/core: Release object lock if destroy failedArtemy Kovalyov
The object lock was supposed to always be released during destroy, but when the destruction retry series was integrated with the destroy series it created a failure path that missed the unlock. Keep with convention, if destroy fails the caller must undo all locking. Fixes: 87ad80abc70d ("IB/uverbs: Consolidate uobject destruction") Signed-off-by: Artemy Kovalyov <artemyko@mellanox.com> Signed-off-by: Leon Romanovsky <leonro@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-04RDMA/ucma: check fd type in ucma_migrate_id()Jann Horn
The current code grabs the private_data of whatever file descriptor userspace has supplied and implicitly casts it to a `struct ucma_file *`, potentially causing a type confusion. This is probably fine in practice because the pointer is only used for comparisons, it is never actually dereferenced; and even in the comparisons, it is unlikely that a file from another filesystem would have a ->private_data pointer that happens to also be valid in this context. But ->private_data is not always guaranteed to be a valid pointer to an object owned by the file's filesystem; for example, some filesystems just cram numbers in there. Check the type of the supplied file descriptor to be safe, analogous to how other places in the kernel do it. Fixes: 88314e4dda1e ("RDMA/cma: add support for rdma_migrate_id()") Signed-off-by: Jann Horn <jannh@google.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2018-09-04drm/i915: Be defensive and don't assume PSR has any commit to sync againstChris Wilson
If the previous modeset commit has completed and is no longer part of the crtc state, skip waiting for it. Ville pointed out that, in fact, the commit is never removed after a modeset so the only way we could see a NULL here should be if there was never a commit attached. Nevertheless, we have the evidence it can be NULL and it has been defended against elsewhere, for example commit 93313538c153 ("drm/i915: Pass idle crtc_state to intel_dp_sink_crc"). Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107792 Fixes: c44301fce614 ("drm/i915: Allow control of PSR at runtime through debugfs, v6") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180904162902.2578-1-chris@chris-wilson.co.uk
2018-09-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking fixes from David Miller: 1) Must perform TXQ teardown before unregistering interfaces in mac80211, from Toke Høiland-Jørgensen. 2) Don't allow creating mac80211_hwsim with less than one channel, from Johannes Berg. 3) Division by zero in cfg80211, fix from Johannes Berg. 4) Fix endian issue in tipc, from Haiqing Bai. 5) BPF sockmap use-after-free fixes from Daniel Borkmann. 6) Spectre-v1 in mac80211_hwsim, from Jinbum Park. 7) Missing rhashtable_walk_exit() in tipc, from Cong Wang. 8) Revert kvzalloc() conversion of AF_PACKET, it breaks mmap() when kvzalloc() tries to use kmalloc() pages. From Eric Dumazet. 9) Fix deadlock in hv_netvsc, from Dexuan Cui. 10) Do not restart timewait timer on RST, from Florian Westphal. 11) Fix double lwstate refcount grab in ipv6, from Alexey Kodanev. 12) Unsolicit report count handling is off-by-one, fix from Hangbin Liu. 13) Sleep-in-atomic in cadence driver, from Jia-Ju Bai. 14) Respect ttl-inherit in ip6 tunnel driver, from Hangbin Liu. 15) Use-after-free in act_ife, fix from Cong Wang. 16) Missing hold to meta module in act_ife, from Vlad Buslov. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (91 commits) net: phy: sfp: Handle unimplemented hwmon limits and alarms net: sched: action_ife: take reference to meta module act_ife: fix a potential use-after-free net/mlx5: Fix SQ offset in QPs with small RQ tipc: correct spelling errors for tipc_topsrv_queue_evt() comments tipc: correct spelling errors for struct tipc_bc_base's comment bnxt_en: Do not adjust max_cp_rings by the ones used by RDMA. bnxt_en: Clean up unused functions. bnxt_en: Fix firmware signaled resource change logic in open. sctp: not traverse asoc trans list if non-ipv6 trans exists for ipv6_flowlabel sctp: fix invalid reference to the index variable of the iterator net/ibm/emac: wrong emac_calc_base call was used by typo net: sched: null actions array pointer before releasing action vhost: fix VHOST_GET_BACKEND_FEATURES ioctl request definition r8169: add support for NCube 8168 network card ip6_tunnel: respect ttl inherit for ip6tnl mac80211: shorten the IBSS debug messages mac80211: don't Tx a deauth frame if the AP forbade Tx mac80211: Fix station bandwidth setting after channel switch mac80211: fix a race between restart and CSA flows ...
2018-09-04HID: core: fix grouping by applicationBenjamin Tissoires
commit f07b3c1da92d ("HID: generic: create one input report per application type") was effectively the same as MULTI_INPUT: hidinput->report was never set, so hidinput_match_application() always returned null. Fix that by testing against the real application. Note that this breaks some old eGalax touchscreens that expect MULTI_INPUT instead of HID_QUIRK_INPUT_PER_APP. Enable this quirk for backward compatibility on all non-Win8 touchscreens. link: https://bugzilla.kernel.org/show_bug.cgi?id=200847 link: https://bugzilla.kernel.org/show_bug.cgi?id=200849 link: https://bugs.archlinux.org/task/59699 link: https://github.com/NixOS/nixpkgs/issues/45165 Cc: stable@vger.kernel.org # v4.18+ Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-09-04HID: multitouch: fix Elan panels with 2 input modes declarationBenjamin Tissoires
When implementing commit 7f81c8db5489 ("HID: multitouch: simplify the settings of the various features"), I wrongly removed a test that made sure we never try to set the second InputMode feature to something else than 0. This broke badly some recent Elan panels that now forget to send the click button in some area of the touchpad. Link: https://bugzilla.kernel.org/show_bug.cgi?id=200899 Fixes: 7f81c8db5489 ("HID: multitouch: simplify the settings of the various features") Cc: stable@vger.kernel.org # v4.18+ Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2018-09-04net: phy: sfp: Handle unimplemented hwmon limits and alarmsAndrew Lunn
Not all SFPs implement the registers containing sensor limits and alarms. Luckily, there is a bit indicating if they are implemented or not. Add checking for this bit, when deciding if the hwmon attributes should be visible. Fixes: 1323061a018a ("net: phy: sfp: Add HWMON support for module sensors") Signed-off-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-04net/mlx5: Fix SQ offset in QPs with small RQTariq Toukan
Correct the formula for calculating the RQ page remainder, which should be in byte granularity. The result will be non-zero only for RQs smaller than PAGE_SIZE, as an RQ size is a power of 2. Divide this by the SQ stride (MLX5_SEND_WQE_BB) to get the SQ offset in strides granularity. Fixes: d7037ad73daa ("net/mlx5: Fix QP fragmented buffer allocation") Signed-off-by: Tariq Toukan <tariqt@mellanox.com> Reviewed-by: Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by: Saeed Mahameed <saeedm@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2018-09-04drm: Remove "protection" around drm_vma_offset_manager_destroy()Chris Wilson
Using a spinlock to serialize the destroy function, within the destroy function itself does not prevent the buggy driver from shooting themselves in the foot - either way they still have a use-after-free issue. Reported-by: Jia-Ju Bai <baijiaju1990@gmail.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Liviu Dudau <Liviu.Dudau@arm.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180903093155.3825-1-chris@chris-wilson.co.uk
2018-09-04drm: Suppress user controlled spam for invalid drm_wait_vblank_ioctlChris Wilson
The ioctl arguments are under control of the user and as such we should resist any temptation to flood the kernel logs with their errors. Relegate the DRM_ERROR to a DRM_DEBUG so the user has to opt into hearing of their own mistakes. (One day we will have a small ringbuffer attached to the task, so that the concerned process can inspect its own debug info for EINVAL without them being hitting syslog at all.) Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20180904115719.24525-1-chris@chris-wilson.co.uk
2018-09-04nbd: don't allow invalid blocksize settingsJens Axboe
syzbot reports a divide-by-zero off the NBD_SET_BLKSIZE ioctl. We need proper validation of the input here. Not just if it's zero, but also if the value is a power-of-2 and in a valid range. Add that. Cc: stable@vger.kernel.org Reported-by: syzbot <syzbot+25dbecbec1e62c6b0dd4@syzkaller.appspotmail.com> Reviewed-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2018-09-04spi: gpio: Fix copy-and-paste errorLinus Walleij
This fixes an embarrassing copy-and-paste error in the errorpath of spi_gpio_request(): we were checking the wrong struct member for error code right after retrieveing the sck GPIO. Fixes: 9b00bc7b901ff672 ("spi: spi-gpio: Rewrite to use GPIO descriptors") Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-04i2c: i801: fix DNV's SMBCTRL register offsetFelipe Balbi
DNV's iTCO is slightly different with SMBCTRL sitting at a different offset when compared to all other devices. Let's fix so that we can properly use iTCO watchdog. Fixes: 84d7f2ebd70d ("i2c: i801: Add support for Intel DNV") Cc: <stable@vger.kernel.org> # v4.4+ Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com> Reviewed-by: Jean Delvare <jdelvare@suse.de> Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
2018-09-04dm verity: fix crash on bufio buffer that was allocated with vmallocMikulas Patocka
Since commit d1ac3ff008fb ("dm verity: switch to using asynchronous hash crypto API") dm-verity uses asynchronous crypto calls for verification, so that it can use hardware with asynchronous processing of crypto operations. These asynchronous calls don't support vmalloc memory, but the buffer data can be allocated with vmalloc if dm-bufio is short of memory and uses a reserved buffer that was preallocated in dm_bufio_client_create(). Fix verity_hash_update() so that it deals with vmalloc'd memory correctly. Reported-by: "Xiao, Jin" <jin.xiao@intel.com> Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Fixes: d1ac3ff008fb ("dm verity: switch to using asynchronous hash crypto API") Cc: stable@vger.kernel.org # 4.12+ Signed-off-by: Mike Snitzer <snitzer@redhat.com>
2018-09-04drm/i915: Pull intel_uncore_arm_unclaimed_mmio_detection() under the spinlockChris Wilson
Elsewhere we manipulate uncore.unclaimed_mmio_check and i915_param.mmio_debug under the irq lock (e.g. preserving the current value across a user forcewake grab), but do not protect the manipulation inside intel_uncore_arm_unclaimed_mmio_detection() from concurrent access, even from itself. This is an issue as we do call arm_unclaimed_mmio_detection from multiple threads without coordination. Suggested-by: Mika Kuoppala <mika.kuoppala@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intelcom> Link: https://patchwork.freedesktop.org/patch/msgid/20180904131207.17563-1-chris@chris-wilson.co.uk
2018-09-04mmc: omap_hsmmc: fix wakeirq handling on removalAndreas Kemnade
after unbinding mmc I get things like this: [ 185.294067] mmc1: card 0001 removed [ 185.305206] omap_hsmmc 480b4000.mmc: wake IRQ with no resume: -13 The wakeirq stays in /proc-interrupts rebinding shows this: [ 289.795959] genirq: Flags mismatch irq 112. 0000200a (480b4000.mmc:wakeup) vs. 0000200a (480b4000.mmc:wakeup) [ 289.808959] omap_hsmmc 480b4000.mmc: Unable to request wake IRQ [ 289.815338] omap_hsmmc 480b4000.mmc: no SDIO IRQ support, falling back to polling That bug seems to be introduced by switching from devm_request_irq() to generic wakeirq handling. So let us cleanup at removal. Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Fixes: 5b83b2234be6 ("mmc: omap_hsmmc: Change wake-up interrupt to use generic wakeirq") Cc: stable@vger.kernel.org # v4.2+ Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
2018-09-04drm/i915/icl: Fix context RPCS programmingTvrtko Ursulin
There are two issues with the current RPCS programming for Icelake: Expansion of the slice count bitfield has been missed, as well as the required programming workaround for the subslice count bitfield size limitation. 1) Bitfield width for configuring the active slice count has grown so we need to program the GEN8_R_PWR_CLK_STATE accordingly. Current code was always requesting eight times the number of slices (due writing to a bitfield starting three bits higher than it should). These requests were luckily a) capped by the hardware to the available number of slices, and b) we haven't yet exported the code to ask for reduced slice configurations. Due both of the above there was no impact from this incorrect programming but we should still fix it. 2) Due subslice count bitfield being only three bits wide and furthermore capped to a maximum documented value of four, special programming workaround is needed to enable more than four subslices. With this programming driver has to consider the GT configuration as 2x4x8, while the hardware internally translates this to 1x8x8. A limitation stemming from this is that either a subslice count between one and four can be selected, or a subslice count equaling the total number of subslices in all selected slices. In other words, odd subslice counts greater than four are impossible, as are odd subslice counts greater than a single slice subslice count. This also had no impact in the current code base due breakage from 1) always reqesting more than one slice. While fixing this we also add some asserts to flag up any future bitfield overflows. v2: * Use a local in all branches for clarity. (Lionel) Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Bspec: 12247 Reported-by: tony.ye@intel.com Suggested-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Cc: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Cc: tony.ye@intel.com Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180903113007.2643-1-tvrtko.ursulin@linux.intel.com
2018-09-04drm/i915/ringbuffer: Move double invalidate to after pd flushChris Wilson
Continuing the fun of trying to find exactly the delay that is sufficient to ensure that the page directory is fully loaded between context switches, move the extra flush added in commit 70b73f9ac113 ("drm/i915/ringbuffer: Delay after invalidating gen6+ xcs") to just after we flush the pd. Entirely based on the empirical data of running failing tests in a loop until we survive a day (before the mtbf is 10-30 minutes). Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107769 References: 70b73f9ac113 ("drm/i915/ringbuffer: Delay after invalidating gen6+ xcs") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Acked-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180904063802.13880-1-chris@chris-wilson.co.uk
2018-09-04drm/i915: Double check we didn't miss an unclaimed register accessChris Wilson
Currently, if the user has enabled mmio-debug around each register access, we presume that we have then checked them all. However, it is still possible through omission (raw register access) or external interaction that the unclaimed access was not highlighted. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180904111732.24266-1-chris@chris-wilson.co.uk
2018-09-04drm/i915: Fix ICL+ HDMI clock readoutVille Syrjälä
Copy the 38.4 vs. 19.2 MHz ref clock exception from the dpll mgr into the clock readout function as well. v2: Refactor the code into a common function s/is_icl/gen11+/ (Rodrigo) Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107722 Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20180903142841.14627-1-ville.syrjala@linux.intel.com Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
2018-09-04drm/i915/gvt: Fix life cycle reference on KVM mmZhenyu Wang
Handle guest mm access life cycle properly with mmget()/mmput(). As noted by Linus, use_mm() depends on valid live page table but KVM's mmgrab() doesn't guarantee that. As vGPU usage depends on guest VM life cycle, need to make sure to use mmget()/mmput() to guarantee VM address access. v3: fix build v2: v1 caused a weird dependence issue which failed for vfio device release, which result invalid mdev vgpu and kvm state without proper release taken. This trys to put right reference around VM address space access instead. Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Zhi Wang <zhi.a.wang@intel.com> Reviewed-by: Zhi Wang <zhi.a.wang@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>