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2020-11-05selftests: binderfs: use SKIP instead of XFAILTommi Rantala
XFAIL is gone since commit 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP"), use SKIP instead. Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP") Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-11-05selftests: clone3: use SKIP instead of XFAILTommi Rantala
XFAIL is gone since commit 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP"), use SKIP instead. Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP") Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-11-05selftests: core: use SKIP instead of XFAIL in close_range_test.cTommi Rantala
XFAIL is gone since commit 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP"), use SKIP instead. Fixes: 9847d24af95c ("selftests/harness: Refactor XFAIL into SKIP") Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Christian Brauner <christian.brauner@ubuntu.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-11-05selftests: proc: fix warning: _GNU_SOURCE redefinedTommi Rantala
Makefile already contains -D_GNU_SOURCE, so we can remove it from the *.c files. Signed-off-by: Tommi Rantala <tommi.t.rantala@nokia.com> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2020-11-05io_uring: use correct pointer for io_uring_show_cred()Jens Axboe
Previous commit changed how we index the registered credentials, but neglected to update one spot that is used when the personalities are iterated through ->show_fdinfo(). Ensure we use the right struct type for the iteration. Reported-by: syzbot+a6d494688cdb797bdfce@syzkaller.appspotmail.com Fixes: 1e6fa5216a0e ("io_uring: COW io_identity on mismatch") Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-11-05io_uring: don't forget to task-cancel drained reqsPavel Begunkov
If there is a long-standing request of one task locking up execution of deferred requests, and the defer list contains requests of another task (all files-less), then a potential execution of __io_uring_task_cancel() by that another task will sleep until that first long-standing request completion, and that may take long. E.g. tsk1: req1/read(empty_pipe) -> tsk2: req(DRAIN) Then __io_uring_task_cancel(tsk2) waits for req1 completion. It seems we even can manufacture a complicated case with many tasks sharing many rings that can lock them forever. Cancel deferred requests for __io_uring_task_cancel() as well. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-11-05Revert "mm: mmap: fix fput in error path v2"Christian König
The kernel test robot is not happy with that. This reverts commit 0227da01f2559626396af5f6c7453360db86c1f6. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/394772/
2020-11-05Revert "mm: introduce vma_set_file function v4"Christian König
The kernel test robot is not happy with that. This reverts commit 2b5b95b1ff3d70a95013a45e3b5b90f1daf42348. Signed-off-by: Christian König <christian.koenig@amd.com> Acked-by: Daniel Vetter <daniel@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/394773/
2020-11-05dma-buf: Fix static checker warningJianxin Xiong
Here is the warning message: drivers/dma-buf/dma-buf.c:917 dma_buf_map_attachment() error: 'sg_table' dereferencing possible ERR_PTR() Fix by adding error checking before dereferencing the pointer. Fixes: ac80cd17a615 ("dma-buf: Clarify that dma-buf sg lists are page aligned") Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Jianxin Xiong <jianxin.xiong@intel.com> Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Christian König <christian.koenig@amd.com> Link: https://patchwork.freedesktop.org/patch/398485/
2020-11-05RDMA/srpt: Fix typo in srpt_unregister_mad_agent docstringJason Gunthorpe
htmldocs fails with: drivers/infiniband/ulp/srpt/ib_srpt.c:630: warning: Function parameter or member 'port_cnt' not described in 'srpt_unregister_mad_agent' Fixes: 372a1786283e ("IB/srpt: Fix memory leak in srpt_add_one") Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2020-11-05Merge tag 'nvme-5.10-2020-11-05' of git://git.infradead.org/nvme into block-5.10Jens Axboe
Pull NVMe fixes from Christoph: "nvme fixes for 5.10: - revert a nvme_queue size optimization (Keith Bush) - fabrics timeout races fixes (Chao Leng and Sagi Grimberg)" * tag 'nvme-5.10-2020-11-05' of git://git.infradead.org/nvme: nvme-tcp: avoid repeated request completion nvme-rdma: avoid repeated request completion nvme-tcp: avoid race between time out and tear down nvme-rdma: avoid race between time out and tear down nvme: introduce nvme_sync_io_queues Revert "nvme-pci: remove last_sq_tail"
2020-11-05powerpc/8xx: Manage _PAGE_ACCESSED through APG bits in L1 entryChristophe Leroy
When _PAGE_ACCESSED is not set, a minor fault is expected. To do this, TLB miss exception ANDs _PAGE_PRESENT and _PAGE_ACCESSED into the L2 entry valid bit. To simplify the processing and reduce the number of instructions in TLB miss exceptions, manage it as an APG bit and get it next to _PAGE_GUARDED bit to allow a copy in one go. Then declare the corresponding groups as handling all accesses as user accesses. As the PP bits always define user as No Access, it will generate a fault. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/80f488db230c6b0e7b3b990d72bd94a8a069e93e.1602492856.git.christophe.leroy@csgroup.eu
2020-11-05powerpc/8xx: Always fault when _PAGE_ACCESSED is not setChristophe Leroy
The kernel expects pte_young() to work regardless of CONFIG_SWAP. Make sure a minor fault is taken to set _PAGE_ACCESSED when it is not already set, regardless of the selection of CONFIG_SWAP. This adds at least 3 instructions to the TLB miss exception handlers fast path. Following patch will reduce this overhead. Also update the rotation instruction to the correct number of bits to reflect all changes done to _PAGE_ACCESSED over time. Fixes: d069cb4373fe ("powerpc/8xx: Don't touch ACCESSED when no SWAP.") Fixes: 5f356497c384 ("powerpc/8xx: remove unused _PAGE_WRITETHRU") Fixes: e0a8e0d90a9f ("powerpc/8xx: Handle PAGE_USER via APG bits") Fixes: 5b2753fc3e8a ("powerpc/8xx: Implementation of PAGE_EXEC") Fixes: a891c43b97d3 ("powerpc/8xx: Prepare handlers for _PAGE_HUGE for 512k pages.") Cc: stable@vger.kernel.org Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/af834e8a0f1fa97bfae65664950f0984a70c4750.1602492856.git.christophe.leroy@csgroup.eu
2020-11-05powerpc/40x: Always fault when _PAGE_ACCESSED is not setChristophe Leroy
The kernel expects pte_young() to work regardless of CONFIG_SWAP. Make sure a minor fault is taken to set _PAGE_ACCESSED when it is not already set, regardless of the selection of CONFIG_SWAP. Fixes: 2c74e2586bb9 ("powerpc/40x: Rework 40x PTE access and TLB miss") Cc: stable@vger.kernel.org Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/b02ca2ed2d3676a096219b48c0f69ec982a75bcf.1602342801.git.christophe.leroy@csgroup.eu
2020-11-05powerpc/603: Always fault when _PAGE_ACCESSED is not setChristophe Leroy
The kernel expects pte_young() to work regardless of CONFIG_SWAP. Make sure a minor fault is taken to set _PAGE_ACCESSED when it is not already set, regardless of the selection of CONFIG_SWAP. Fixes: 84de6ab0e904 ("powerpc/603: don't handle PAGE_ACCESSED in TLB miss handlers.") Cc: stable@vger.kernel.org Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/a44367744de54e2315b2f1a8cbbd7f88488072e0.1602342806.git.christophe.leroy@csgroup.eu
2020-11-05Merge branches 'pm-cpufreq', 'pm-cpuidle', 'pm-opp' and 'powercap'Rafael J. Wysocki
* pm-cpufreq: cpufreq: schedutil: Don't skip freq update if need_freq_update is set * pm-cpuidle: Documentation: PM: cpuidle: correct path name Documentation: PM: cpuidle: correct typo * pm-opp: opp: Reduce the size of critical section in _opp_table_kref_release() opp: Fix early exit from dev_pm_opp_register_set_opp_helper() opp: Don't always remove static OPPs in _of_add_opp_table_v1() * powercap: powercap/intel_rapl: remove unneeded semicolon
2020-11-05mm: introduce vma_set_file function v4Christian König
Add the new vma_set_file() function to allow changing vma->vm_file with the necessary refcount dance. v2: add more users of this. v3: add missing EXPORT_SYMBOL, rebase on mmap cleanup, add comments why we drop the reference on two occasions. v4: make it clear that changing an anonymous vma is illegal. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v2) Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://patchwork.freedesktop.org/patch/394773/
2020-11-05mm: mmap: fix fput in error path v2Christian König
Patch "495c10cc1c0c CHROMIUM: dma-buf: restore args..." adds a workaround for a bug in mmap_region. As the comment states ->mmap() callback can change vma->vm_file and so we might call fput() on the wrong file. Revert the workaround and proper fix this in mmap_region. v2: drop the extra if in dma_buf_mmap as well Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Link: https://patchwork.freedesktop.org/patch/394772/
2020-11-05drm/virtio: use kvmalloc for large allocationsSergey Senozhatsky
We observed that some of virtio_gpu_object_shmem_init() allocations can be rather costly - order 6 - which can be difficult to fulfill under memory pressure conditions. Switch to kvmalloc_array() in virtio_gpu_object_shmem_init() and let the kernel vmalloc the entries array. Signed-off-by: Sergey Senozhatsky <senozhatsky@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/20201105014744.1662226-1-senozhatsky@chromium.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2020-11-05drm: document that blobs are ref'countedSimon Ser
User-space doesn't need to keep track of blobs that might be in use by the kernel. User-space can just destroy blobs as soon as they don't need them anymore. Signed-off-by: Simon Ser <contact@emersion.fr> Signed-off-by: Daniel Stone <daniel@fooishbar.org> Reviewed-by: Jonas Ådahl <jadahl@gmail.com> Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/wgav99DTGfubfVPiurrydQEiyufYpxlJQZ0wJMWYBQ@cp7-web-042.plabs.ch
2020-11-05ALSA: usb-audio: Add implicit feedback quirk for Qu-16Geoffrey D. Bennett
This patch fixes audio distortion on playback for the Allen&Heath Qu-16. Signed-off-by: Geoffrey D. Bennett <g@b4.vu> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20201104115717.GA19046@b4.vu Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-11-04xfs: only flush the unshared range in xfs_reflink_unshareDarrick J. Wong
There's no reason to flush an entire file when we're unsharing part of a file. Therefore, only initiate writeback on the selected range. Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com> Reviewed-by: Chandan Babu R <chandanrlinux@gmail.com>
2020-11-04r8169: work around short packet hw bug on RTL8125Heiner Kallweit
Network problems with RTL8125B have been reported [0] and with help from Realtek it turned out that this chip version has a hw problem with short packets (similar to RTL8168evl). Having said that activate the same workaround as for RTL8168evl. Realtek suggested to activate the workaround for RTL8125A too, even though they're not 100% sure yet which RTL8125 versions are affected. [0] https://bugzilla.kernel.org/show_bug.cgi?id=209839 Fixes: 0439297be951 ("r8169: add support for RTL8125B") Reported-by: Maxim Plotnikov <wgh@torlan.ru> Tested-by: Maxim Plotnikov <wgh@torlan.ru> Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com> Link: https://lore.kernel.org/r/8002c31a-60b9-58f1-f0dd-8fd07239917f@gmail.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-05powerpc: Use asm_goto_volatile for put_user()Michael Ellerman
Andreas reported that commit ee0a49a6870e ("powerpc/uaccess: Switch __put_user_size_allowed() to __put_user_asm_goto()") broke CLONE_CHILD_SETTID. Further inspection showed that the put_user() in schedule_tail() was missing entirely, the store not emitted by the compiler. <.schedule_tail>: mflr r0 std r0,16(r1) stdu r1,-112(r1) bl <.finish_task_switch> ld r9,2496(r3) cmpdi cr7,r9,0 bne cr7,<.schedule_tail+0x60> ld r3,392(r13) ld r9,1392(r3) cmpdi cr7,r9,0 beq cr7,<.schedule_tail+0x3c> li r4,0 li r5,0 bl <.__task_pid_nr_ns> nop bl <.calculate_sigpending> nop addi r1,r1,112 ld r0,16(r1) mtlr r0 blr nop nop nop bl <.__balance_callback> b <.schedule_tail+0x1c> Notice there are no stores other than to the stack. There should be a stw in there for the store to current->set_child_tid. This is only seen with GCC 4.9 era compilers (tested with 4.9.3 and 4.9.4), and only when CONFIG_PPC_KUAP is disabled. When CONFIG_PPC_KUAP=y, the inline asm that's part of the isync() and mtspr() inlined via allow_user_access() seems to be enough to avoid the bug. We already have a macro to work around this (or a similar bug), called asm_volatile_goto which includes an empty asm block to tickle the compiler into generating the right code. So use that. With this applied the code generation looks more like it will work: <.schedule_tail>: mflr r0 std r31,-8(r1) std r0,16(r1) stdu r1,-144(r1) std r3,112(r1) bl <._mcount> nop ld r3,112(r1) bl <.finish_task_switch> ld r9,2624(r3) cmpdi cr7,r9,0 bne cr7,<.schedule_tail+0xa0> ld r3,2408(r13) ld r31,1856(r3) cmpdi cr7,r31,0 beq cr7,<.schedule_tail+0x80> li r4,0 li r5,0 bl <.__task_pid_nr_ns> nop li r9,-1 clrldi r9,r9,12 cmpld cr7,r31,r9 bgt cr7,<.schedule_tail+0x80> lis r9,16 rldicr r9,r9,32,31 subf r9,r31,r9 cmpldi cr7,r9,3 ble cr7,<.schedule_tail+0x80> li r9,0 stw r3,0(r31) <-- stw nop bl <.calculate_sigpending> nop addi r1,r1,144 ld r0,16(r1) ld r31,-8(r1) mtlr r0 blr nop bl <.__balance_callback> b <.schedule_tail+0x30> Fixes: ee0a49a6870e ("powerpc/uaccess: Switch __put_user_size_allowed() to __put_user_asm_goto()") Reported-by: Andreas Schwab <schwab@linux-m68k.org> Tested-by: Andreas Schwab <schwab@linux-m68k.org> Suggested-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201104111742.672142-1-mpe@ellerman.id.au
2020-11-04drm/amdgpu/display: FP fixes for DCN3.x (v4)Alex Deucher
Add proper FP_START/END handling and adjust Makefiles per previous asics. v2: fix up harder. v3: fix clkmgr Makefile for dcn30 v4: fix old gcc handling is only required for x86 Build-tested-by: Nathan Chancellor <natechancellor@gmail.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> (v1) Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> (v1) Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amdgpu: fold CONFIG_DRM_AMD_DC_DCN3* into CONFIG_DRM_AMD_DC_DCN (v3)Alex Deucher
Avoids confusion in configurations. v2: fix build when CONFIG_DRM_AMD_DC_DCN is disabled v3: rebase on latest code Reviewed-by: Luben Tuikov <luben.tuikov@amd.com> (v1) Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amd/amdgpu: Enable arcturus devices to access the method ↵Ramesh Errabolu
kgd_gfx_v9_get_cu_occupancy that is already defined [Why] Allow user to know number of compute units (CU) that are in use at any given moment. [How] Remove the keyword static for the method kgd_gfx_v9_get_cu_occupancy Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Ramesh Errabolu <Ramesh.Errabolu@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amd/display: fix psr panel lightupRoman Li
[Why] The change for correct asic type check caused a psr regression due to incorrect chip family id for Raven. [How] Use correct family id. Signed-off-by: Roman Li <roman.li@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amdgpu: cleanup debug log in amdgpu_set_pp_features()Kevin Wang
Signed-off-by: Kevin Wang <kevin1.wang@amd.com> Reviewed-by: Kenneth Feng <kenneth.feng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amd/amdgpu: switch on/off vcn power profile modeKenneth Feng
switch to vcn power profile mode when a video is playing. this can optimize the power/performance when the workload is on the vcn. Signed-off-by: Kenneth Feng <kenneth.feng@amd.com> Reviewed-by: Kevin Wang <kevin1.wang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amdgpu: update module paramter doc of amdgpu_dpmKevin Wang
the vega20 isn't supported swsmu. Signed-off-by: Kevin Wang <kevin1.wang@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amdgpu: do not initialise global variables to 0 or NULLDeepak R Varma
Initializing global variable to 0 or NULL is not necessary and should be avoided. Issue reported by checkpatch script as: ERROR: do not initialise globals to 0 (or NULL). Reviewed-by: Christian König <christian.koenig@amd.com> Signed-off-by: Deepak R Varma <mh12gx2825@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amdgpu: set LDS_CONFIG=0x20 on Navy Flounder to fix a GPU hang (v2)Marek Olšák
v2: squash in build fix Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Marek Olšák <marek.olsak@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amdgpu: Change the way to determine framebuffer typeGang Ba
Determine FRAMEBUFFER_PUBLIC/PRIVATE only based host-accessibility, not peer-accesssibility Signed-off-by: Gang Ba <gaba@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amdgpu: fix off by one in amdgpu_vm_handle_faultChristian König
The value is inclusive, not exclusive. Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com> Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amdgpu: enable GFXOFF for dimgrey_cavefishTao Zhou
GFXOFF has been supported by PMFW, enable it directly in driver for dimgrey_cavefish. Signed-off-by: Tao Zhou <tao.zhou1@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amdgpu: resolved ASD loading issue on siennaJohn Clements
updated fw header v2 parser to set asd fw memory Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: John Clements <john.clements@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amdgpu: Enable FGCG for VangoghJinzhou.Su
Add flags AMD_CG_SUPPORT_GFX_FGCG for Vangogh Signed-off-by: Jinzhou.Su <Jinzhou.Su@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amdgpu: Add Fine Grain Clock Gating for GFX10Jinzhou.Su
1. Add FGCG for gfx10 2. Get FGCG status for pm info debugfs Signed-off-by: Jinzhou.Su <Jinzhou.Su@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04drm/amdgpu: Add GFX Fine Grain Clock Gating flagJinzhou.Su
Add AMD_CG_SUPPORT_GFX_FGCG for FGCG Signed-off-by: Jinzhou.Su <Jinzhou.Su@amd.com> Reviewed-by: Huang Rui <ray.huang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-11-04risc-v: kernel: ftrace: Fixes improper SPDX comment styleRyan Kosta
Signed-off-by: Ryan Kosta <ryanpkosta@gmail.com> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-11-04USB: serial: option: add Telit FN980 composition 0x1055Daniele Palmas
Add the following Telit FN980 composition: 0x1055: tty, adb, tty, tty, tty, tty Signed-off-by: Daniele Palmas <dnlplm@gmail.com> Link: https://lore.kernel.org/r/20201103124425.12940-1-dnlplm@gmail.com Cc: stable@vger.kernel.org Signed-off-by: Johan Hovold <johan@kernel.org>
2020-11-04ceph: check session state after bumping session->s_seqJeff Layton
Some messages sent by the MDS entail a session sequence number increment, and the MDS will drop certain types of requests on the floor when the sequence numbers don't match. In particular, a REQUEST_CLOSE message can cross with one of the sequence morphing messages from the MDS which can cause the client to stall, waiting for a response that will never come. Originally, this meant an up to 5s delay before the recurring workqueue job kicked in and resent the request, but a recent change made it so that the client would never resend, causing a 60s stall unmounting and sometimes a blockisting event. Add a new helper for incrementing the session sequence and then testing to see whether a REQUEST_CLOSE needs to be resent, and move the handling of CEPH_MDS_SESSION_CLOSING into that function. Change all of the bare sequence counter increments to use the new helper. Reorganize check_session_state with a switch statement. It should no longer be called when the session is CLOSING, so throw a warning if it ever is (but still handle that case sanely). [ idryomov: whitespace, pr_err() call fixup ] URL: https://tracker.ceph.com/issues/47563 Fixes: fa9967734227 ("ceph: fix potential mdsc use-after-free crash") Reported-by: Patrick Donnelly <pdonnell@redhat.com> Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Ilya Dryomov <idryomov@gmail.com> Reviewed-by: Xiubo Li <xiubli@redhat.com> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-11-04PCI: mvebu: Fix duplicate resource requestsRob Herring
With commit 669cbc708122 ("PCI: Move DT resource setup into devm_pci_alloc_host_bridge()"), the DT 'ranges' is parsed and populated into resources when the host bridge is allocated. The resources are requested as well, but that happens a second time for the mvebu driver in mvebu_pcie_parse_request_resources(). We should only be requesting the additional resources added in mvebu_pcie_parse_request_resources(). These are not added by default because they use custom properties rather than standard DT address translation. Also, the bus ranges was also populated by default, so we can remove it from mvebu_pci_host_probe(). Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=209729 Fixes: 669cbc708122 ("PCI: Move DT resource setup into devm_pci_alloc_host_bridge()") Link: https://lore.kernel.org/r/20201023145252.2691779-1-robh@kernel.org Reported-by: vtolkm@googlemail.com Tested-by: Jan Kundrát <jan.kundrat@cesnet.cz> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com> Cc: Jason Cooper <jason@lakedaemon.net> Cc: Russell King <linux@armlinux.org.uk>
2020-11-04PCI: dwc: Restore ATU memory resource setup to use last entryRob Herring
Prior to commit 0f71c60ffd26 ("PCI: dwc: Remove storing of PCI resources"), the DWC driver was setting up the last memory resource rather than the first memory resource. This doesn't matter for most platforms which only have 1 memory resource, but it broke Tegra194 which has a 2nd (prefetchable) memory region that requires an ATU entry. The first region on Tegra194 relies on the default 1:1 pass-thru of outbound transactions and doesn't need an ATU entry. Fixes: 0f71c60ffd26 ("PCI: dwc: Remove storing of PCI resources") Link: https://lore.kernel.org/r/20201026154852.221483-1-robh@kernel.org Reported-by: Vidya Sagar <vidyas@nvidia.com> Signed-off-by: Rob Herring <robh@kernel.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Acked-by: Jingoo Han <jingoohan1@gmail.com> Cc: Gustavo Pimentel <gustavo.pimentel@synopsys.com>
2020-11-04Merge tag 'linux-can-fixes-for-5.10-20201103' of ↵Jakub Kicinski
git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can Marc Kleine-Budde says: ==================== pull-request: can 2020-11-03 The first two patches are by Oleksij Rempel and they add a generic can-controller Device Tree yaml binding and convert the text based binding of the flexcan driver to a yaml based binding. Zhang Changzhong's patch fixes a remove_proc_entry warning in the AF_CAN core. A patch by me fixes a kfree_skb() call from IRQ context in the rx-offload helper. Vincent Mailhol contributes a patch to prevent a call to kfree_skb() in hard IRQ context in can_get_echo_skb(). Oliver Hartkopp's patch fixes the length calculation for RTR CAN frames in the __can_get_echo_skb() helper. Oleksij Rempel's patch fixes a use-after-free that shows up with j1939 in can_create_echo_skb(). Yegor Yefremov contributes 4 patches to enhance the j1939 documentation. Zhang Changzhong's patch fixes a hanging task problem in j1939_sk_bind() if the netdev is down. Then there are three patches for the newly added CAN_ISOTP protocol. Geert Uytterhoeven enhances the kconfig help text. Oliver Hartkopp's patch adds missing RX timeout handling in listen-only mode and Colin Ian King's patch decreases the generated object code by 926 bytes. Zhang Changzhong contributes a patch for the ti_hecc driver that fixes the error path in the probe function. Navid Emamdoost's patch for the xilinx_can driver fixes the error handling in case of failing pm_runtime_get_sync(). There are two patches for the peak_usb driver. Dan Carpenter adds range checking in decode operations and Stephane Grosjean's patch fixes a timestamp wrapping problem. Stephane Grosjean's patch for th peak_canfd driver fixes echo management if loopback is on. The next three patches all target the mcp251xfd driver. The first one is by me and it increased the severity of CRC read error messages. The kernel test robot removes an unneeded semicolon and Tom Rix removes unneeded break in several switch-cases. The last 4 patches are by Joakim Zhang and target the flexcan driver, the first three fix ECC related device specific quirks for the LS1021A, LX2160A and the VF610 SoC. The last patch disable wakeup completely upon driver remove. * tag 'linux-can-fixes-for-5.10-20201103' of git://git.kernel.org/pub/scm/linux/kernel/git/mkl/linux-can: (27 commits) can: flexcan: flexcan_remove(): disable wakeup completely can: flexcan: add ECC initialization for VF610 can: flexcan: add ECC initialization for LX2160A can: flexcan: remove FLEXCAN_QUIRK_DISABLE_MECR quirk for LS1021A can: mcp251xfd: remove unneeded break can: mcp251xfd: mcp251xfd_regmap_nocrc_read(): fix semicolon.cocci warnings can: mcp251xfd: mcp251xfd_regmap_crc_read(): increase severity of CRC read error messages can: peak_canfd: pucan_handle_can_rx(): fix echo management when loopback is on can: peak_usb: peak_usb_get_ts_time(): fix timestamp wrapping can: peak_usb: add range checking in decode operations can: xilinx_can: handle failure cases of pm_runtime_get_sync can: ti_hecc: ti_hecc_probe(): add missed clk_disable_unprepare() in error path can: isotp: padlen(): make const array static, makes object smaller can: isotp: isotp_rcv_cf(): enable RX timeout handling in listen-only mode can: isotp: Explain PDU in CAN_ISOTP help text can: j1939: j1939_sk_bind(): return failure if netdev is down can: j1939: use backquotes for code samples can: j1939: swap addr and pgn in the send example can: j1939: fix syntax and spelling can: j1939: rename jacd tool ... ==================== Link: https://lore.kernel.org/r/<20201103220636.972106-1-mkl@pengutronix.de> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-11-04spi: fsl-dspi: fix wrong pointer in suspend/resumeZhao Qiang
Since commit 530b5affc675 ("spi: fsl-dspi: fix use-after-free in remove path"), this driver causes a "NULL pointer dereference" in dspi_suspend/resume. This is because since this commit, the drivers private data point to "dspi" instead of "ctlr", the codes in suspend and resume func were not modified correspondly. Fixes: 530b5affc675 ("spi: fsl-dspi: fix use-after-free in remove path") Signed-off-by: Zhao Qiang <qiang.zhao@nxp.com> Reviewed-by: Vladimir Oltean <olteanv@gmail.com> Link: https://lore.kernel.org/r/20201103020546.1822-1-qiang.zhao@nxp.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-04ASoC: mchp-spdiftx: Do not set Validity bit(s)Codrin Ciubotariu
The Validity bits (bit 28) must not be set in order to have the samples valid. Some controllers look for this bit and ignore the samples if it is set. Fixes: 06ca24e98e6b ("ASoC: mchp-spdiftx: add driver for S/PDIF TX Controller") Signed-off-by: Codrin Ciubotariu <codrin.ciubotariu@microchip.com> Link: https://lore.kernel.org/r/20201104155738.68403-1-codrin.ciubotariu@microchip.com Signed-off-by: Mark Brown <broonie@kernel.org>
2020-11-04io_uring: fix overflowed cancel w/ linked ->filesPavel Begunkov
Current io_match_files() check in io_cqring_overflow_flush() is useless because requests drop ->files before going to the overflow list, however linked to it request do not, and we don't check them. Signed-off-by: Pavel Begunkov <asml.silence@gmail.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-11-04io_uring: drop req/tctx io_identity separatelyJens Axboe
We can't bundle this into one operation, as the identity may not have originated from the tctx to begin with. Drop one ref for each of them separately, if they don't match the static assignment. If we don't, then if the identity is a lookup from registered credentials, we could be freeing that identity as we're dropping a reference assuming it came from the tctx. syzbot reports this as a use-after-free, as the identity is still referencable from idr lookup: ================================================================== BUG: KASAN: use-after-free in instrument_atomic_read_write include/linux/instrumented.h:101 [inline] BUG: KASAN: use-after-free in atomic_fetch_add_relaxed include/asm-generic/atomic-instrumented.h:142 [inline] BUG: KASAN: use-after-free in __refcount_add include/linux/refcount.h:193 [inline] BUG: KASAN: use-after-free in __refcount_inc include/linux/refcount.h:250 [inline] BUG: KASAN: use-after-free in refcount_inc include/linux/refcount.h:267 [inline] BUG: KASAN: use-after-free in io_init_req fs/io_uring.c:6700 [inline] BUG: KASAN: use-after-free in io_submit_sqes+0x15a9/0x25f0 fs/io_uring.c:6774 Write of size 4 at addr ffff888011e08e48 by task syz-executor165/8487 CPU: 1 PID: 8487 Comm: syz-executor165 Not tainted 5.10.0-rc1-next-20201102-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x107/0x163 lib/dump_stack.c:118 print_address_description.constprop.0.cold+0xae/0x4c8 mm/kasan/report.c:385 __kasan_report mm/kasan/report.c:545 [inline] kasan_report.cold+0x1f/0x37 mm/kasan/report.c:562 check_memory_region_inline mm/kasan/generic.c:186 [inline] check_memory_region+0x13d/0x180 mm/kasan/generic.c:192 instrument_atomic_read_write include/linux/instrumented.h:101 [inline] atomic_fetch_add_relaxed include/asm-generic/atomic-instrumented.h:142 [inline] __refcount_add include/linux/refcount.h:193 [inline] __refcount_inc include/linux/refcount.h:250 [inline] refcount_inc include/linux/refcount.h:267 [inline] io_init_req fs/io_uring.c:6700 [inline] io_submit_sqes+0x15a9/0x25f0 fs/io_uring.c:6774 __do_sys_io_uring_enter+0xc8e/0x1b50 fs/io_uring.c:9159 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x440e19 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 eb 0f fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fff644ff178 EFLAGS: 00000246 ORIG_RAX: 00000000000001aa RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000000440e19 RDX: 0000000000000000 RSI: 000000000000450c RDI: 0000000000000003 RBP: 0000000000000004 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000022b4850 R13: 0000000000000010 R14: 0000000000000000 R15: 0000000000000000 Allocated by task 8487: kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track mm/kasan/common.c:56 [inline] __kasan_kmalloc.constprop.0+0xc2/0xd0 mm/kasan/common.c:461 kmalloc include/linux/slab.h:552 [inline] io_register_personality fs/io_uring.c:9638 [inline] __io_uring_register fs/io_uring.c:9874 [inline] __do_sys_io_uring_register+0x10f0/0x40a0 fs/io_uring.c:9924 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Freed by task 8487: kasan_save_stack+0x1b/0x40 mm/kasan/common.c:48 kasan_set_track+0x1c/0x30 mm/kasan/common.c:56 kasan_set_free_info+0x1b/0x30 mm/kasan/generic.c:355 __kasan_slab_free+0x102/0x140 mm/kasan/common.c:422 slab_free_hook mm/slub.c:1544 [inline] slab_free_freelist_hook+0x5d/0x150 mm/slub.c:1577 slab_free mm/slub.c:3140 [inline] kfree+0xdb/0x360 mm/slub.c:4122 io_identity_cow fs/io_uring.c:1380 [inline] io_prep_async_work+0x903/0xbc0 fs/io_uring.c:1492 io_prep_async_link fs/io_uring.c:1505 [inline] io_req_defer fs/io_uring.c:5999 [inline] io_queue_sqe+0x212/0xed0 fs/io_uring.c:6448 io_submit_sqe fs/io_uring.c:6542 [inline] io_submit_sqes+0x14f6/0x25f0 fs/io_uring.c:6784 __do_sys_io_uring_enter+0xc8e/0x1b50 fs/io_uring.c:9159 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 The buggy address belongs to the object at ffff888011e08e00 which belongs to the cache kmalloc-96 of size 96 The buggy address is located 72 bytes inside of 96-byte region [ffff888011e08e00, ffff888011e08e60) The buggy address belongs to the page: page:00000000a7104751 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x11e08 flags: 0xfff00000000200(slab) raw: 00fff00000000200 ffffea00004f8540 0000001f00000002 ffff888010041780 raw: 0000000000000000 0000000080200020 00000001ffffffff 0000000000000000 page dumped because: kasan: bad access detected Memory state around the buggy address: ffff888011e08d00: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff888011e08d80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc > ffff888011e08e00: fa fb fb fb fb fb fb fb fb fb fb fb fc fc fc fc ^ ffff888011e08e80: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ffff888011e08f00: 00 00 00 00 00 00 00 00 00 00 00 00 fc fc fc fc ================================================================== Reported-by: syzbot+625ce3bb7835b63f7f3d@syzkaller.appspotmail.com Fixes: 1e6fa5216a0e ("io_uring: COW io_identity on mismatch") Signed-off-by: Jens Axboe <axboe@kernel.dk>
generated by cgit v1.2.3 (git 2.39.1) at 2025-07-31 16:45:13 +0000