- 03 May, 2021 10 commits
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Jason Wang authored
All users (both virtio-pci library and vp_vdpa driver) has been switched to use vp_modern_map_vq_notify(). So there's no need to export the low level helper of vp_modern_get_queue_notify_off(). Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210415073147.19331-5-jasowang@redhat.comSigned-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eli Cohen <elic@nvidia.com>
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Jason Wang authored
This patch switches to use vp_vdpa to use vp_modern_map_notify(). Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210415073147.19331-4-jasowang@redhat.comSigned-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eli Cohen <elic@nvidia.com>
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Jason Wang authored
This patch switch to use vp_modern_map_notify() for virtio-pci library. Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210415073147.19331-3-jasowang@redhat.comSigned-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eli Cohen <elic@nvidia.com>
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Jason Wang authored
This patch factors out the logic of vq notify area mapping. Following patches will switch to use this common helpers for both virtio_pci library and virtio-pci vDPA driver. Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210415073147.19331-2-jasowang@redhat.comSigned-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eli Cohen <elic@nvidia.com>
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Max Gurtovoy authored
Not all virtio_net devices support the ctrl queue feature. Thus, there is no need to allocate unused resources. Signed-off-by: Max Gurtovoy <mgurtovoy@nvidia.com> Link: https://lore.kernel.org/r/20210502093319.61313-1-mgurtovoy@nvidia.comSigned-off-by: Michael S. Tsirkin <mst@redhat.com>
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Liu Xiang authored
Typo: compation --> compaction Signed-off-by: Liu Xiang <liu.xiang@zlingsmart.com> Link: https://lore.kernel.org/r/20210327031710.16151-1-liu.xiang@zlingsmart.comSigned-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: David Hildenbrand <david@redhat.com>
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Parav Pandit authored
Follow comment style mentioned in the Writing kernel-doc document [1]. Following warnings are fixed. $ scripts/kernel-doc -v -none drivers/vdpa/vdpa.c drivers/vdpa/vdpa.c:67: info: Scanning doc for __vdpa_alloc_device drivers/vdpa/vdpa.c:84: warning: No description found for return value of '__vdpa_alloc_device' drivers/vdpa/vdpa.c:153: info: Scanning doc for _vdpa_register_device drivers/vdpa/vdpa.c:163: warning: No description found for return value of '_vdpa_register_device' drivers/vdpa/vdpa.c:172: info: Scanning doc for vdpa_register_device drivers/vdpa/vdpa.c:180: warning: No description found for return value of 'vdpa_register_device' drivers/vdpa/vdpa.c:191: info: Scanning doc for _vdpa_unregister_device drivers/vdpa/vdpa.c:205: info: Scanning doc for vdpa_unregister_device drivers/vdpa/vdpa.c:217: info: Scanning doc for __vdpa_register_driver drivers/vdpa/vdpa.c:224: warning: No description found for return value of '__vdpa_register_driver' drivers/vdpa/vdpa.c:233: info: Scanning doc for vdpa_unregister_driver drivers/vdpa/vdpa.c:243: info: Scanning doc for vdpa_mgmtdev_register drivers/vdpa/vdpa.c:250: warning: No description found for return value of 'vdpa_mgmtdev_register' After the fix: scripts/kernel-doc -v -none drivers/vdpa/vdpa.c drivers/vdpa/vdpa.c:67: info: Scanning doc for __vdpa_alloc_device drivers/vdpa/vdpa.c:153: info: Scanning doc for _vdpa_register_device drivers/vdpa/vdpa.c:172: info: Scanning doc for vdpa_register_device drivers/vdpa/vdpa.c:191: info: Scanning doc for _vdpa_unregister_device drivers/vdpa/vdpa.c:205: info: Scanning doc for vdpa_unregister_device drivers/vdpa/vdpa.c:217: info: Scanning doc for __vdpa_register_driver drivers/vdpa/vdpa.c:233: info: Scanning doc for vdpa_unregister_driver drivers/vdpa/vdpa.c:243: info: Scanning doc for vdpa_mgmtdev_register [1] https://www.kernel.org/doc/html/latest/doc-guide/kernel-doc.htmlSigned-off-by: Parav Pandit <parav@nvidia.com> Reviewed-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20210406170457.98481-3-parav@nvidia.comSigned-off-by: Michael S. Tsirkin <mst@redhat.com>
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Parav Pandit authored
Follow comment style mentioned in the Writing kernel-doc document [1]. Following warnings are fixed. $ scripts/kernel-doc -v -none include/linux/vdpa.h include/linux/vdpa.h:11: warning: missing initial short description on line: * vDPA callback definition. include/linux/vdpa.h:11: info: Scanning doc for vDPA include/linux/vdpa.h:15: warning: cannot understand function prototype: 'struct vdpa_callback ' include/linux/vdpa.h:21: warning: missing initial short description on line: * vDPA notification area include/linux/vdpa.h:21: info: Scanning doc for vDPA include/linux/vdpa.h:25: warning: cannot understand function prototype: 'struct vdpa_notification_area ' include/linux/vdpa.h:31: warning: missing initial short description on line: * vDPA vq_state definition include/linux/vdpa.h:31: info: Scanning doc for vDPA include/linux/vdpa.h:34: warning: cannot understand function prototype: 'struct vdpa_vq_state ' include/linux/vdpa.h:41: info: Scanning doc for vDPA device include/linux/vdpa.h:51: warning: cannot understand function prototype: 'struct vdpa_device ' include/linux/vdpa.h:62: info: Scanning doc for vDPA IOVA range include/linux/vdpa.h:66: warning: cannot understand function prototype: 'struct vdpa_iova_range ' include/linux/vdpa.h:72: info: Scanning doc for vDPA_config_ops include/linux/vdpa.h:203: warning: cannot understand function prototype: 'struct vdpa_config_ops ' include/linux/vdpa.h:270: info: Scanning doc for vdpa_driver include/linux/vdpa.h:275: warning: cannot understand function prototype: 'struct vdpa_driver ' include/linux/vdpa.h:347: info: Scanning doc for vdpa_mgmtdev_ops include/linux/vdpa.h:360: warning: cannot understand function prototype: 'struct vdpa_mgmtdev_ops ' After this fix: scripts/kernel-doc -v -none include/linux/vdpa.h include/linux/vdpa.h:11: info: Scanning doc for struct vdpa_calllback include/linux/vdpa.h:21: info: Scanning doc for struct vdpa_notification_area include/linux/vdpa.h:31: info: Scanning doc for struct vdpa_vq_state include/linux/vdpa.h:41: info: Scanning doc for struct vdpa_device include/linux/vdpa.h:62: info: Scanning doc for struct vdpa_iova_range include/linux/vdpa.h:72: info: Scanning doc for struct vdpa_config_ops include/linux/vdpa.h:270: info: Scanning doc for struct vdpa_driver include/linux/vdpa.h:347: info: Scanning doc for struct vdpa_mgmtdev_ops [1] https://www.kernel.org/doc/html/latest/doc-guide/kernel-doc.htmlSigned-off-by: Parav Pandit <parav@nvidia.com> Reviewed-by: Eli Cohen <elic@nvidia.com> Link: https://lore.kernel.org/r/20210406170457.98481-2-parav@nvidia.comSigned-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com>
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Eli Cohen authored
Allow to control vdpa device creation and destruction using the vdpa management tool. Examples: 1. List the management devices $ vdpa mgmtdev show pci/0000:3b:00.1: supported_classes net 2. Create vdpa instance $ vdpa dev add mgmtdev pci/0000:3b:00.1 name vdpa0 3. Show vdpa devices $ vdpa dev show vdpa0: type network mgmtdev pci/0000:3b:00.1 vendor_id 5555 max_vqs 16 \ max_vq_size 256 Signed-off-by: Eli Cohen <elic@nvidia.com> Reviewed-by: Parav Pandit <parav@nvidia.com> Acked-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210408091320.4600-1-elic@nvidia.comSigned-off-by: Michael S. Tsirkin <mst@redhat.com>
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Jason Wang authored
This patch introduce a vDPA driver for virtio-pci device. It bridges the virtio-pci control command to the vDPA bus. This will be used for features prototyping and testing. Note that get/restore virtqueue state is not supported which needs extension on the virtio specification. Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210223061905.422659-4-jasowang@redhat.comSigned-off-by: Michael S. Tsirkin <mst@redhat.com>
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- 25 Apr, 2021 6 commits
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Linus Torvalds authored
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Linus Torvalds authored
Merge tag 'perf-tools-fixes-for-v5.12-2021-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux Pull perf tools fixes from Arnaldo Carvalho de Melo: - Fix potential NULL pointer dereference in the auxtrace option parser - Fix access to PID in an array when setting a PID filter in 'perf ftrace' - Fix error return code in the 'perf data' tool and in maps__clone(), found using a static analysis tool from Huawei * tag 'perf-tools-fixes-for-v5.12-2021-04-25' of git://git.kernel.org/pub/scm/linux/kernel/git/acme/linux: perf map: Fix error return code in maps__clone() perf ftrace: Fix access to pid in array when setting a pid filter perf auxtrace: Fix potential NULL pointer dereference perf data: Fix error return code in perf_data__create_dir()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 perf fixes from Borislav Petkov: - Fix Broadwell Xeon's stepping in the PEBS isolation table of CPUs - Fix a panic when initializing perf uncore machinery on Haswell and Broadwell servers * tag 'perf_urgent_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/kvm: Fix Broadwell Xeon stepping in isolation_ucodes[] perf/x86/intel/uncore: Remove uncore extra PCI dev HSWEP_PCI_PCU_3
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull locking fix from Borislav Petkov: "Fix ordering in the queued writer lock's slowpath" * tag 'locking_urgent_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: locking/qrwlock: Fix ordering in queued_write_lock_slowpath()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull scheduler fix from Borislav Petkov: "Fix a typo in a macro ifdeffery" * tag 'sched_urgent_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: preempt/dynamic: Fix typo in macro conditional statement
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fix from Borislav Petkov: "Fix an out-of-bounds memory access when setting up a crash kernel with kexec" * tag 'x86_urgent_for_v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/crash: Fix crash_setup_memmap_entries() out-of-bounds access
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- 24 Apr, 2021 3 commits
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull kvm fix from Paolo Bonzini: "Fix SRCU bug introduced in the merge window" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86/xen: Take srcu lock when accessing kvm_memslots()
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Linus Torvalds authored
This reverts commit 0c85a7e8. The games with 'rm' are on (two separate instances) of a local variable, and make no difference. Quoting Aditya Pakki: "I was the author of the patch and it was the cause of the giant UMN revert. The patch is garbage and I was unaware of the steps involved in retracting it. I *believed* the maintainers would pull it, given it was already under Greg's list. The patch does not introduce any bugs but is pointless and is stupid. I accept my incompetence and for not requesting a revert earlier." Link: https://lwn.net/Articles/854319/Requested-by: Aditya Pakki <pakki001@umn.edu> Cc: Santosh Shilimkar <santosh.shilimkar@oracle.com> Cc: David S. Miller <davem@davemloft.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrlLinus Torvalds authored
Pull pin control fixes from Linus Walleij: "Late pin control fixes, would have been in the main pull request normally but hey I got lucky and we got another week to polish up v5.12 so here we go. One driver fix and one making the core debugfs work: - Fix the number of pins in the community of the Intel Lewisburg SoC - Show pin numbers for controllers with base = 0 in the new debugfs feature" * tag 'pinctrl-v5.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: pinctrl: core: Show pin numbers for the controllers with base = 0 pinctrl: lewisburg: Update number of pins in community
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- 23 Apr, 2021 17 commits
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Linus Torvalds authored
Merge misc fixes from Andrew Morton: "5 patches. Subsystems affected by this patch series: coda, overlayfs, and mm (pagecache and memcg)" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: tools/cgroup/slabinfo.py: updated to work on current kernel mm/filemap: fix mapping_seek_hole_data on THP & 32-bit mm/filemap: fix find_lock_entries hang on 32-bit THP ovl: fix reference counting in ovl_mmap error path coda: fix reference counting in coda_file_mmap error path
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git://git.kernel.dk/linux-blockLinus Torvalds authored
Pull block fix from Jens Axboe: "A single fix for a behavioral regression in this series, when re-reading the partition table with partitions open" * tag 'block-5.12-2021-04-23' of git://git.kernel.dk/linux-block: block: return -EBUSY when there are open partitions in blkdev_reread_part
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Vasily Averin authored
slabinfo.py script does not work with actual kernel version. First, it was unable to recognise SLUB susbsytem, and when I specified it manually it failed again with AttributeError: 'struct page' has no member 'obj_cgroups' .. and then again with File "tools/cgroup/memcg_slabinfo.py", line 221, in main memcg.kmem_caches.address_of_(), AttributeError: 'struct mem_cgroup' has no member 'kmem_caches' Link: https://lkml.kernel.org/r/cec1a75e-43b4-3d64-2084-d9f98fda037f@virtuozzo.comSigned-off-by: Vasily Averin <vvs@virtuozzo.com> Tested-by: Roman Gushchin <guro@fb.com> Acked-by: Roman Gushchin <guro@fb.com> Cc: Michal Hocko <mhocko@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Hugh Dickins authored
No problem on 64-bit, or without huge pages, but xfstests generic/285 and other SEEK_HOLE/SEEK_DATA tests have regressed on huge tmpfs, and on 32-bit architectures, with the new mapping_seek_hole_data(). Several different bugs turned out to need fixing. u64 cast to stop losing bits when converting unsigned long to loff_t (and let's use shifts throughout, rather than mixed with * and /). Use round_up() when advancing pos, to stop assuming that pos was already THP-aligned when advancing it by THP-size. (This use of round_up() assumes that any THP has THP-aligned index: true at present and true going forward, but could be recoded to avoid the assumption.) Use xas_set() when iterating away from a THP, so that xa_index stays in synch with start, instead of drifting away to return bogus offset. Check start against end to avoid wrapping 32-bit xa_index to 0 (and to handle these additional cases, seek_data or not, it's easier to break the loop than goto: so rearrange exit from the function). [hughd@google.com: remove unneeded u64 casts, per Matthew] Link: https://lkml.kernel.org/r/alpine.LSU.2.11.2104221347240.1170@eggly.anvils Link: https://lkml.kernel.org/r/alpine.LSU.2.11.2104211737410.3299@eggly.anvils Fixes: 41139aa4 ("mm/filemap: add mapping_seek_hole_data") Signed-off-by: Hugh Dickins <hughd@google.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Dave Chinner <dchinner@redhat.com> Cc: Jan Kara <jack@suse.cz> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: William Kucharski <william.kucharski@oracle.com> Cc: Yang Shi <yang.shi@linux.alibaba.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Hugh Dickins authored
No problem on 64-bit, or without huge pages, but xfstests generic/308 hung uninterruptibly on 32-bit huge tmpfs. Since commit 0cc3b0ec ("Clarify (and fix) in 4.13 MAX_LFS_FILESIZE macros"), MAX_LFS_FILESIZE is only a PAGE_SIZE away from wrapping 32-bit xa_index to 0, so the new find_lock_entries() has to be extra careful when handling a THP. Link: https://lkml.kernel.org/r/alpine.LSU.2.11.2104211735430.3299@eggly.anvils Fixes: 5c211ba2 ("mm: add and use find_lock_entries") Signed-off-by: Hugh Dickins <hughd@google.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: William Kucharski <william.kucharski@oracle.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@suse.cz> Cc: Dave Chinner <dchinner@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Yang Shi <yang.shi@linux.alibaba.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Christian König authored
mmap_region() now calls fput() on the vma->vm_file. Fix this by using vma_set_file() so it doesn't need to be handled manually here any more. Link: https://lkml.kernel.org/r/20210421132012.82354-2-christian.koenig@amd.com Fixes: 1527f926 ("mm: mmap: fix fput in error path v2") Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Jan Harkes <jaharkes@cs.cmu.edu> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: <stable@vger.kernel.org> [5.11+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Christian König authored
mmap_region() now calls fput() on the vma->vm_file. So we need to drop the extra reference on the coda file instead of the host file. Link: https://lkml.kernel.org/r/20210421132012.82354-1-christian.koenig@amd.com Fixes: 1527f926 ("mm: mmap: fix fput in error path v2") Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Jan Harkes <jaharkes@cs.cmu.edu> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: Jason Gunthorpe <jgg@ziepe.ca> Cc: <stable@vger.kernel.org> [5.11+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Wanpeng Li authored
kvm_memslots() will be called by kvm_write_guest_offset_cached() so we should take the srcu lock. Let's pull the srcu lock operation from kvm_steal_time_set_preempted() again to fix xen part. Fixes: 30b5c851 ("KVM: x86/xen: Add support for vCPU runstate information") Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Message-Id: <1619166200-9215-1-git-send-email-wanpengli@tencent.com> Reviewed-by: Sean Christopherson <seanjc@google.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds authored
Pull ARM SoC fixes from Arnd Bergmann: "These should be the final fixes for v5.12. There is one fix for SD card detection on one Allwinner board, and a few fixes for the Tegra platform that I had already queued up for v5.13 due to a communication problem. This addresses MMC device ordering on multiple machines, audio support on Jetson AGX Xavier and suspend/resume on Jetson TX2" * tag 'arm-fixes-5.12-4' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: arm64: dts: allwinner: Revert SD card CD GPIO for Pine64-LTS arm64: tegra: Move clocks from RT5658 endpoint to device node arm64: tegra: Fix mmc0 alias for Jetson Xavier NX arm64: tegra: Set fw_devlink=on for Jetson TX2 arm64: tegra: Add unit-address for ACONNECT on Tegra186
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Zhen Lei authored
Although 'err' has been initialized to -ENOMEM, but it will be reassigned by the "err = unwind__prepare_access(...)" statement in the for loop. So that, the value of 'err' is unknown when map__clone() failed. Fixes: 6c502584 ("perf unwind: Call unwind__prepare_access for forked thread") Reported-by: Hulk Robot <hulkci@huawei.com> Signed-off-by: Zhen Lei <thunder.leizhen@huawei.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: zhen lei <thunder.leizhen@huawei.com> Link: http://lore.kernel.org/lkml/20210415092744.3793-1-thunder.leizhen@huawei.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Thomas Richter authored
Command 'perf ftrace -v -- ls' fails in s390 (at least 5.12.0rc6). The root cause is a missing pointer dereference which causes an array element address to be used as PID. Fix this by extracting the PID. Output before: # ./perf ftrace -v -- ls function_graph tracer is used write '-263732416' to tracing/set_ftrace_pid failed: Invalid argument failed to set ftrace pid # Output after: ./perf ftrace -v -- ls function_graph tracer is used # tracer: function_graph # # CPU DURATION FUNCTION CALLS # | | | | | | | 4) | rcu_read_lock_sched_held() { 4) 0.552 us | rcu_lockdep_current_cpu_online(); 4) 6.124 us | } Reported-by: Alexander Schmidt <alexschm@de.ibm.com> Signed-off-by: Thomas Richter <tmricht@linux.ibm.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: Heiko Carstens <hca@linux.ibm.com> Cc: Sumanth Korikkar <sumanthk@linux.ibm.com> Cc: Sven Schnelle <svens@linux.ibm.com> Cc: Vasily Gorbik <gor@linux.ibm.com> Link: http://lore.kernel.org/lkml/20210421120400.2126433-1-tmricht@linux.ibm.comSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Leo Yan authored
In the function auxtrace_parse_snapshot_options(), the callback pointer "itr->parse_snapshot_options" can be NULL if it has not been set during the AUX record initialization. This can cause tool crashing if the callback pointer "itr->parse_snapshot_options" is dereferenced without performing NULL check. Add a NULL check for the pointer "itr->parse_snapshot_options" before invoke the callback. Fixes: d20031bb ("perf tools: Add AUX area tracing Snapshot Mode") Signed-off-by: Leo Yan <leo.yan@linaro.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Andi Kleen <ak@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Tiezhu Yang <yangtiezhu@loongson.cn> Link: http://lore.kernel.org/lkml/20210420151554.2031768-1-leo.yan@linaro.orgSigned-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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git://anongit.freedesktop.org/drm/drmLinus Torvalds authored
Pull drm fixes from Dave Airlie: "Just some small i915 and amdgpu fixes this week, should be all until you open the merge window. amdgpu: - Fix gpuvm page table update issue - Modifier fixes - Register fix for dimgrey cavefish i915: - GVT's BDW regression fix for cmd parser - Fix modesetting in case of unexpected AUX timeouts" * tag 'drm-fixes-2021-04-23' of git://anongit.freedesktop.org/drm/drm: drm/amdgpu: fix GCR_GENERAL_CNTL offset for dimgrey_cavefish amd/display: allow non-linear multi-planar formats drm/amd/display: Update modifier list for gfx10_3 drm/amdgpu: reserve fence slot to update page table drm/i915: Fix modesetting in case of unexpected AUX timeouts drm/i915/gvt: Fix BDW command parser regression
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git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linuxLinus Torvalds authored
Pull gpio fix from Bartosz Golaszewski: "Save and restore the sysconfig register in gpio-omap to fix a power-management issue" * tag 'gpio-fixes-for-v5.12' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: gpio: omap: Save and restore sysconfig
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Arnd Bergmann authored
arm64: tegra: Device tree fixes for v5.12-rc6 This contains a couple of device tree fixes for the v5.12 release cycle. These are needed for proper audio support on Jetson AGX Xavier, to boot the Jetson Xavier NX from an SD card and to be able to suspend/resume the Jetson TX2. * tegra/dt64: arm64: tegra: Move clocks from RT5658 endpoint to device node arm64: tegra: Fix mmc0 alias for Jetson Xavier NX arm64: tegra: Set fw_devlink=on for Jetson TX2 arm64: tegra: Add unit-address for ACONNECT on Tegra186 Link: https://lore.kernel.org/linux-arm-kernel/YILD4yyPXuiYbHW1@orome.fritz.box/Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Dave Airlie authored
Merge tag 'drm-intel-fixes-2021-04-22' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes - GVT's BDW regression fix for cmd parser (Zhenyu) - Fix modesetting in case of unexpected AUX timeouts (Imre) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/YIGZ3pQPgPQtZtyI@intel.com
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Dave Airlie authored
Merge tag 'amd-drm-fixes-5.12-2021-04-21' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-5.12-2021-04-21: amdgpu: - Fix gpuvm page table update issue - Modifier fixes - Register fix for dimgrey cavefish Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20210421220456.3839-1-alexander.deucher@amd.com
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- 22 Apr, 2021 4 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostLinus Torvalds authored
Pull virtio fixes from Michael Tsirkin: "Very late in the cycle but both risky if left unfixed and more or less obvious.." * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: vdpa/mlx5: Set err = -ENOMEM in case dma_map_sg_attrs fails vhost-vdpa: protect concurrent access to vhost device iotlb
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Eli Cohen authored
Set err = -ENOMEM if dma_map_sg_attrs() fails so the function reutrns error. Fixes: 94abbccd ("vdpa/mlx5: Add shared memory registration code") Signed-off-by: Eli Cohen <elic@nvidia.com> Reported-by: kernel test robot <lkp@intel.com> Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Link: https://lore.kernel.org/r/20210411083646.910546-1-elic@nvidia.comSigned-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
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Xie Yongji authored
Protect vhost device iotlb by vhost_dev->mutex. Otherwise, it might cause corruption of the list and interval tree in struct vhost_iotlb if userspace sends the VHOST_IOTLB_MSG_V2 message concurrently. Fixes: 4c8cf318("vhost: introduce vDPA-based backend") Cc: stable@vger.kernel.org Signed-off-by: Xie Yongji <xieyongji@bytedance.com> Acked-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> Link: https://lore.kernel.org/r/20210412095512.178-1-xieyongji@bytedance.comSigned-off-by: Michael S. Tsirkin <mst@redhat.com>
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Arnd Bergmann authored
Merge tag 'sunxi-fixes-for-5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux into arm/fixes One fix for the MMC card detect on the Pine H64 board * tag 'sunxi-fixes-for-5.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux: arm64: dts: allwinner: Revert SD card CD GPIO for Pine64-LTS Link: https://lore.kernel.org/r/45fc5e4d-ef48-4729-a869-79a8f288bb83.lettre@localhostSigned-off-by: Arnd Bergmann <arnd@arndb.de>
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