- 21 Feb, 2023 17 commits
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Alvaro Karsz authored
Add SolidRun vendor ID to pci_ids.h The vendor ID is used in 2 different source files, the SNET vDPA driver and PCI quirks. Signed-off-by:
Alvaro Karsz <alvaro.karsz@solid-run.com> Acked-by:
Bjorn Helgaas <bhelgaas@google.com> Message-Id: <20230110165638.123745-2-alvaro.karsz@solid-run.com> Signed-off-by:
Michael S. Tsirkin <mst@redhat.com>
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Eugenio Pérez authored
VIRTIO_NET_S_LINK_UP is already returned in config reads since vdpasim creation, but the feature bit was not offered to the driver. Tested modifying VIRTIO_NET_S_LINK_UP and different values of "status" in qemu virtio-net options, using vhost_vdpa. Not considering as a fix, because there should be no driver trusting in this config read before the feature flag. Signed-off-by:
Eugenio Pérez <eperezma@redhat.com> Message-Id: <20221117155502.1394700-1-eperezma@redhat.com> Signed-off-by:
Stefano Garzarella <sgarzare@redhat.com> Tested-by:
Lei Yang <leiyang@redhat.com>
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Zhu Lingshan authored
This commit implements features provisioning for ifcvf, that means: 1)checkk whether the provisioned features are supported by the management device 2)vDPA device only presents selected feature bits Examples: a)The management device supported features: $ vdpa mgmtdev show pci/0000:01:00.5 pci/0000:01:00.5: supported_classes net max_supported_vqs 9 dev_features MTU MAC MRG_RXBUF CTRL_VQ MQ ANY_LAYOUT VERSION_1 ACCESS_PLATFORM b)Provision a vDPA device with all supported features: $ vdpa dev add name vdpa0 mgmtdev pci/0000:01:00.5 $ vdpa/vdpa dev config show vdpa0 vdpa0: mac 00:e8:ca:11:be:05 link up link_announce false max_vq_pairs 4 mtu 1500 negotiated_features MRG_RXBUF CTRL_VQ MQ VERSION_1 ACCESS_PLATFORM c)Provision a vDPA device with a subset of the supported features: $ vdpa dev add name vdpa0 mgmtdev pci/0000:01:00.5 device_features 0x300020020 $ vdpa dev config show vdpa0 mac 00:e8:ca:11:be:05 link up link_announce false negotiated_features CTRL_VQ VERSION_1 ACCESS_PLATFORM Signed-off-by:
Zhu Lingshan <lingshan.zhu@intel.com> Message-Id: <20221125145724.1129962-13-lingshan.zhu@intel.com> Signed-off-by:
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Zhu Lingshan authored
This commit retires ifcvf_private_to_vf, because the vf is already a member of the adapter, so it could be easily addressed by adapter->vf. Signed-off-by:
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Zhu Lingshan authored
The adapter is the container of the vdpa_device, this commits allocate the adapter in dev_add() rather than in probe(). So that the vdpa_device() could be re-created when the userspace creates the vdpa device, and free-ed in dev_del() Signed-off-by:
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Zhu Lingshan authored
This commit allocates the hw structure in the management device structure. So the hardware can be initialized once the management device is allocated in probe. Signed-off-by:
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Zhu Lingshan authored
All ifcvf_request_irq's callees are refactored to work on ifcvf_hw, so it should be decoupled from the adapter as well Signed-off-by:
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Zhu Lingshan authored
This commit decouples the config irq requester, the device shared irq requester and the MSI vectors allocator from the adapter. So they can be safely invoked since probe before the adapter is allocated. Signed-off-by:
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Zhu Lingshan authored
This commit decouples the vq irq requester from the adapter, so that these functions can be invoked since probe. Signed-off-by:
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Zhu Lingshan authored
This commit decouples config IRQ releaser from the adapter, so that it could be invoked once probe or in err handlers. ifcvf_free_irq() works on ifcvf_hw in this commit Signed-off-by:
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Zhu Lingshan authored
This commit decouples the IRQ releasers from the adapter, so that these functions could be safely invoked once probe Signed-off-by:
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Zhu Lingshan authored
This commit reverses the order of allocating the management device and the adapter. So that it would be possible to move the allocation of the adapter to dev_add(). Signed-off-by:
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Zhu Lingshan authored
This commit decopules the config space ops from the adapter layer, so these functions can be invoked once the device is probed. Signed-off-by:
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Zhu Lingshan authored
This commit gets rid of ifcvf_adapter in hw features related functions in ifcvf_base. Then these functions are more rubust and de-coupling from the ifcvf_adapter layer. So these functions could be invoded once the device is probed, even before the adapter is allocaed. Signed-off-by:
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Eli Cohen authored
For each interface, either VLAN tagged or untagged, add two hardware counters: one for unicast and another for multicast. The counters count RX packets and bytes and can be read through debugfs: $ cat /sys/kernel/debug/mlx5/mlx5_core.sf.1/vdpa-0/rx/untagged/mcast/packets $ cat /sys/kernel/debug/mlx5/mlx5_core.sf.1/vdpa-0/rx/untagged/ucast/bytes This feature is controlled via the config option MLX5_VDPA_STEERING_DEBUG. It is off by default as it may have some impact on performance. includes a fixup By Yang Yingliang <yangyingliang@huawei.com>: vdpa/mlx5: fix check wrong pointer in mlx5_vdpa_add_mac_vlan_rules() The local variable 'rule' is not used anymore, fix return value check after calling mlx5_add_flow_rules(). Signed-off-by:
Eli Cohen <elic@nvidia.com> Message-Id: <20221114131759.57883-9-elic@nvidia.com> Signed-off-by:
Jason Wang <jasowang@redhat.com> Signed-off-by:
Yang Yingliang <yangyingliang@huawei.com> Message-Id: <20230104074418.1737510-1-yangyingliang@huawei.com> Signed-off-by:
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Eli Cohen authored
Add debugfs subtree and expose flow table ID and TIR number. This information can be used by external tools to do extended troubleshooting. The information can be retrieved like so: $ cat /sys/kernel/debug/mlx5/mlx5_core.sf.1/vdpa-0/rx/table_id $ cat /sys/kernel/debug/mlx5/mlx5_core.sf.1/vdpa-0/rx/tirn Reviewed-by:
Si-Wei Liu <si-wei.liu@oracle.com> Acked-by:
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Eli Cohen authored
Move some definitions from mlx5_vnet.c to newly added header file mlx5_vnet.h. We need these definitions for the following patches that add debugfs tree to expose information vital for debug. Reviewed-by:
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- 15 Feb, 2023 6 commits
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Michael S. Tsirkin authored
zone is a virtio 1.x feature so all fields are LE, they are handled as such, but have mistakenly been labeled __virtioXX in the header. This results in a bunch of sparse warnings. Use the __leXX tags to make sparse happy. Message-Id: <20221222193214.55146-1-mst@redhat.com> Signed-off-by: -
Michael S. Tsirkin authored
virtio blk returns a 64 bit append_sector in an input buffer, in LE format. This field is not tagged as LE correctly, so even though the generated code is ok, we get warnings from sparse: drivers/block/virtio_blk.c:332:33: sparse: sparse: cast to restricted __le64 Make sparse happy by using the correct type. Message-Id: <20221220125154.564265-1-mst@redhat.com> Signed-off-by: -
Michael S. Tsirkin authored
virtblk_result returns blk_status_t which is a bitwise restricted type, so we are not supposed to stuff it in a plain int temporary variable. All we do with it is pass it on to a function expecting blk_status_t so the generated code is ok, but we get warnings from sparse: drivers/block/virtio_blk.c:326:36: sparse: sparse: incorrect type in initializer (different base types) @@ expected int status @@ +got restricted blk_status_t @@ drivers/block/virtio_blk.c:334:33: sparse: sparse: incorrect type in argument 2 (different base types) @@ expected restricted +blk_status_t [usertype] error @@ got int status @@ Make sparse happy by using the correct type. Message-Id: <20221220124152.523531-1-mst@redhat.com> Signed-off-by:
Stefan Hajnoczi <stefanha@redhat.com> Reviewed-by:
Chaitanya Kulkarni <kch@nvidia.com>
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Dmitry Fomichev authored
This patch adds support for Zoned Block Devices (ZBDs) to the kernel virtio-blk driver. The patch accompanies the virtio-blk ZBD support draft that is now being proposed for standardization. The latest version of the draft is linked at https://github.com/oasis-tcs/virtio-spec/issues/143 . The QEMU zoned device code that implements these protocol extensions has been developed by Sam Li and it is currently in review at the QEMU mailing list. A number of virtblk request structure changes has been introduced to accommodate the functionality that is specific to zoned block devices and, most importantly, make room for carrying the Zoned Append sector value from the device back to the driver along with the request status. The zone-specific code in the patch is heavily influenced by NVMe ZNS code in drivers/nvme/host/zns.c, but it is simpler because the proposed virtio ZBD draft only covers the zoned device features that are relevant to the zoned functionality provided by Linux block layer. includes the following fixup: virtio-blk: fix probe without CONFIG_BLK_DEV_ZONED When building without CONFIG_BLK_DEV_ZONED, VIRTIO_BLK_F_ZONED is excluded from array of driver features. As a result virtio_has_feature panics in virtio_check_driver_offered_feature since that by design verifies that a feature we are checking for is listed in the feature array. To fix, replace the call to virtio_has_feature with a stub. Message-Id: <20221016034127.330942-3-dmitry.fomichev@wdc.com> Co-developed-by:
Stefan Hajnoczi <stefanha@gmail.com> Signed-off-by:
Dmitry Fomichev <dmitry.fomichev@wdc.com> Message-Id: <20221220112340.518841-1-mst@redhat.com> Reported-by:
Linux Kernel Functional Testing <lkft@linaro.org> Tested-by:
Xuan Zhuo <xuanzhuo@linux.alibaba.com> Debugged-by:
Anders Roxell <anders.roxell@linaro.org> Tested-by:
Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by:
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Ricardo Cañuelo authored
Basic doc about Virtio on Linux and a short tutorial on Virtio drivers. includes the following fixup: virtio: fix virtio_config_ops kerneldocs Fixes two warning messages when building htmldocs: warning: duplicate section name 'Note' warning: expecting prototype for virtio_config_ops(). Prototype was for vq_callback_t() instead Message-Id: <20221010064359.1324353-2-ricardo.canuelo@collabora.com> Signed-off-by:Ricardo Cañuelo <ricardo.canuelo@collabora.com> Reviewed-by:
Cornelia Huck <cohuck@redhat.com> Message-Id: <20221220100035.2712449-1-ricardo.canuelo@collabora.com> Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Reviewed-by:
Bagas Sanjaya <bagasdotme@gmail.com> Signed-off-by:
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Michael Sammler authored
Compute the numa information for a virtio_pmem device from the memory range of the device. Previously, the target_node was always 0 since the ndr_desc.target_node field was never explicitly set. The code for computing the numa node is taken from cxl_pmem_region_probe in drivers/cxl/pmem.c. Signed-off-by:
Michael Sammler <sammler@google.com> Reviewed-by:
Pasha Tatashin <pasha.tatashin@soleen.com> Reviewed-by:
Pankaj Gupta <pankaj.gupta@amd.com> Tested-by:
Mina Almasry <almasrymina@google.com> Message-Id: <20221115214036.1571015-1-sammler@google.com> Signed-off-by:
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- 13 Feb, 2023 1 commit
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Eugenio Pérez authored
vdpasim_queue_ready calls vringh_init_iotlb, which resets split indexes. But it can be called after setting a ring base with vdpasim_set_vq_state. Fix it by stashing them. They're still resetted in vdpasim_vq_reset. This was discovered and tested live migrating the vdpa_sim_net device. Fixes: 2c53d0f6 ("vdpasim: vDPA device simulator") Signed-off-by:
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- 12 Feb, 2023 10 commits
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Linus Torvalds authored
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John Paul Adrian Glaubitz authored
Both Rich Felker and Yoshinori Sato haven't done any work on arch/sh for a while. As I have been maintaining Debian's sh4 port since 2014, I am interested to keep the architecture alive. Signed-off-by:
John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> Acked-by:
Yoshinori Sato <ysato@users.sourceforge.jp> Acked-by:
Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-traceLinus Torvalds authored
Pull tracing fix from Steven Rostedt: "Fix showing of TASK_COMM_LEN instead of its value The TASK_COMM_LEN was converted from a macro into an enum so that BTF would have access to it. But this unfortunately caused TASK_COMM_LEN to display in the format fields of trace events, as they are created by the TRACE_EVENT() macro and such, macros convert to their values, where as enums do not. To handle this, instead of using the field itself to be display, save the value of the array size as another field in the trace_event_fields structure, and use that instead. Not only does this fix the issue, but also converts the other trace events that have this same problem (but were not breaking tooling). With this change, the original work around b3bc8547 ("tracing: Have TRACE_DEFINE_ENUM affect trace event types as well") could be reverted (but that should be done in the merge window)" * tag 'trace-v6.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: tracing: Fix TASK_COMM_LEN in trace event format file
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git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linuxLinus Torvalds authored
Pull btrfs fixes from David Sterba: - one more fix for a tree-log 'write time corruption' report, update the last dir index directly and don't keep in the log context - do VFS-level inode lock around FIEMAP to prevent a deadlock with concurrent fsync, the extent-level lock is not sufficient - don't cache a single-device filesystem device to avoid cases when a loop device is reformatted and the entry gets stale * tag 'for-6.2-rc7-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: btrfs: free device in btrfs_close_devices for a single device filesystem btrfs: lock the inode in shared mode before starting fiemap btrfs: simplify update of last_dir_index_offset when logging a directory
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB fixes from Greg KH: "Here are 2 small USB driver fixes that resolve some reported regressions and one new device quirk. Specifically these are: - new quirk for Alcor Link AK9563 smartcard reader - revert of u_ether gadget change in 6.2-rc1 that caused problems - typec pin probe fix All of these have been in linux-next with no reported problems" * tag 'usb-6.2-rc8' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: usb: core: add quirk for Alcor Link AK9563 smartcard reader usb: typec: altmodes/displayport: Fix probe pin assign check Revert "usb: gadget: u_ether: Do not make UDC parent of the net device"
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git://git.kernel.org/pub/scm/linux/kernel/git/efi/efiLinus Torvalds authored
Pull EFI fix from Ard Biesheuvel: "A fix from Darren to widen the SMBIOS match for detecting Ampere Altra machines with problematic firmware. In the mean time, we are working on a more precise check, but this is still work in progress" * tag 'efi-fixes-for-v6.2-4' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: arm64: efi: Force the use of SetVirtualAddressMap() on eMAG and Altra Max machines
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Michael Ellerman: - Fix interrupt exit race with security mitigation switching. - Don't select ARCH_WANTS_NO_INSTR until warnings are fixed. - Build fix for CONFIG_NUMA=n. Thanks to Nicholas Piggin, Randy Dunlap, and Sachin Sant. * tag 'powerpc-6.2-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s/interrupt: Fix interrupt exit race with security mitigation switch powerpc/kexec_file: fix implicit decl error powerpc: Don't select ARCH_WANTS_NO_INSTR
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David Chen authored
When we upgraded our kernel, we started seeing some page corruption like the following consistently: BUG: Bad page state in process ganesha.nfsd pfn:1304ca page:0000000022261c55 refcount:0 mapcount:-128 mapping:0000000000000000 index:0x0 pfn:0x1304ca flags: 0x17ffffc0000000() raw: 0017ffffc0000000 ffff8a513ffd4c98 ffffeee24b35ec08 0000000000000000 raw: 0000000000000000 0000000000000001 00000000ffffff7f 0000000000000000 page dumped because: nonzero mapcount CPU: 0 PID: 15567 Comm: ganesha.nfsd Kdump: loaded Tainted: P B O 5.10.158-1.nutanix.20221209.el7.x86_64 #1 Hardware name: VMware, Inc. VMware Virtual Platform/440BX Desktop Reference Platform, BIOS 6.00 04/05/2016 Call Trace: dump_stack+0x74/0x96 bad_page.cold+0x63/0x94 check_new_page_bad+0x6d/0x80 rmqueue+0x46e/0x970 get_page_from_freelist+0xcb/0x3f0 ? _cond_resched+0x19/0x40 __alloc_pages_nodemask+0x164/0x300 alloc_pages_current+0x87/0xf0 skb_page_frag_refill+0x84/0x110 ... Sometimes, it would also show up as corruption in the free list pointer and cause crashes. After bisecting the issue, we found the issue started from commit e320d301 ("mm/page_alloc.c: fix freeing non-compound pages"): if (put_page_testzero(page)) free_the_page(page, order); else if (!PageHead(page)) while (order-- > 0) free_the_page(page + (1 << order), order); So the problem is the check PageHead is racy because at this point we already dropped our reference to the page. So even if we came in with compound page, the page can already be freed and PageHead can return false and we will end up freeing all the tail pages causing double free. Fixes: e320d301 ("mm/page_alloc.c: fix freeing non-compound pages") Link: https://lore.kernel.org/lkml/BYAPR02MB448855960A9656EEA81141FC94D99@BYAPR02MB4488.namprd02.prod.outlook.com/ Cc: Andrew Morton <akpm@linux-foundation.org> Cc: stable@vger.kernel.org Signed-off-by:
Chunwei Chen <david.chen@nutanix.com> Reviewed-by:
Vlastimil Babka <vbabka@suse.cz> Reviewed-by:
Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by:
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Yafang Shao authored
After commit 3087c61e ("tools/testing/selftests/bpf: replace open-coded 16 with TASK_COMM_LEN"), the content of the format file under /sys/kernel/tracing/events/task/task_newtask was changed from field:char comm[16]; offset:12; size:16; signed:0; to field:char comm[TASK_COMM_LEN]; offset:12; size:16; signed:0; John reported that this change breaks older versions of perfetto. Then Mathieu pointed out that this behavioral change was caused by the use of __stringify(_len), which happens to work on macros, but not on enum labels. And he also gave the suggestion on how to fix it: :One possible solution to make this more robust would be to extend :struct trace_event_fields with one more field that indicates the length :of an array as an actual integer, without storing it in its stringified :form in the type, and do the formatting in f_show where it belongs. The result as follows after this change, $ cat /sys/kernel/tracing/events/task/task_newtask/format field:char comm[16]; offset:12; size:16; signed:0; Link: https://lore.kernel.org/lkml/Y+QaZtz55LIirsUO@google.com/ Link: https://lore.kernel.org/linux-trace-kernel/20230210155921.4610-1-laoar.shao@gmail.com/ Link: https://lore.kernel.org/linux-trace-kernel/20230212151303.12353-1-laoar.shao@gmail.com Cc: stable@vger.kernel.org Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com> Cc: Kajetan Puchalski <kajetan.puchalski@arm.com> CC: Qais Yousef <qyousef@layalina.io> Fixes: 3087c61e ("tools/testing/selftests/bpf: replace open-coded 16 with TASK_COMM_LEN") Reported-by:
John Stultz <jstultz@google.com> Debugged-by:
Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Suggested-by:
Steven Rostedt <rostedt@goodmis.org> Signed-off-by:
Yafang Shao <laoar.shao@gmail.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spiLinus Torvalds authored
Pull spi fixes from Mark Brown: "A couple of hopefully final fixes for spi: one driver specific fix for an issue with very large transfers and a fix for an issue with the locking fixes in spidev merged earlier this release cycle which was missed" * tag 'spi-fix-v6.2-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: spidev: fix a recursive locking error spi: dw: Fix wrong FIFO level setting for long xfers
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- 11 Feb, 2023 5 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Ingo Molnar: "Fix a kprobes bug, plus add a new Intel model number to the upstream <asm/intel-family.h> header for drivers to use" * tag 'x86-urgent-2023-02-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/cpu: Add Lunar Lake M x86/kprobes: Fix 1 byte conditional jump target
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull locking fix from Ingo Molnar: "Fix an rtmutex missed-wakeup bug" * tag 'locking-urgent-2023-02-11' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: rtmutex: Ensure that the top waiter is always woken up
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git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxlLinus Torvalds authored
Pull cxl fixes from Dan Williams: "Two fixups for CXL (Compute Express Link) in presence of passthrough decoders. This primarily helps developers using the QEMU CXL emulation, but with the impending arrival of CXL switches these types of topologies will be of interest to end users. - Fix a crash when shutting down regions in the presence of passthrough decoders - Fix region creation to understand passthrough decoders instead of the narrower definition of passthrough ports" * tag 'cxl-fixes-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: cxl/region: Fix passthrough-decoder detection cxl/region: Fix null pointer dereference for resetting decoder -
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimmLinus Torvalds authored
Pull libnvdimm fixes from Dan Williams: "A fix for an issue that could causes users to inadvertantly reserve too much capacity when debugging the KMSAN and persistent memory namespace, a lockdep fix, and a kernel-doc build warning: - Resolve the conflict between KMSAN and NVDIMM with respect to reserving pmem namespace / volume capacity for larger sizeof(struct page) - Fix a lockdep warning in the the NFIT code - Fix a kernel-doc build warning" * tag 'libnvdimm-fixes-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: nvdimm: Support sizeof(struct page) > MAX_STRUCT_PAGE_SIZE ACPI: NFIT: fix a potential deadlock during NFIT teardown dax: super.c: fix kernel-doc bad line warning -
git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblockLinus Torvalds authored
Pull memblock revert from Mike Rapoport: "Revert 'mm: Always release pages to the buddy allocator in memblock_free_late()' The pages being freed by memblock_free_late() have already been initialized, but if they are in the deferred init range, __free_one_page() might access nearby uninitialized pages when trying to coalesce buddies, which will cause a crash. A proper fix will be more involved so revert this change for the time being" * tag 'fixes-2023-02-11' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: Revert "mm: Always release pages to the buddy allocator in memblock_free_late()."
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- 10 Feb, 2023 1 commit
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git://git.kernel.org/pub/scm/linux/kernel/git/clk/linuxLinus Torvalds authored
Pull clk fixes from Stephen Boyd: "Two clk driver fixes - Use devm_kasprintf() to avoid overflows when forming clk names in the Microchip PolarFire driver - Fix the pretty broken Ingenic JZ4760 M/N/OD calculation to actually work and find proper divisors" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: ingenic: jz4760: Update M/N/OD calculation algorithm clk: microchip: mpfs-ccc: Use devm_kasprintf() for allocating formatted strings
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