- Sep 02, 2023
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Linus Torvalds authored
Sudip Mukherjee reports that the mips sb1250_swarm_defconfig build fails with the current kernel. It isn't actually MIPS-specific, it's just that that defconfig does not have CGROUP_SCHED enabled like most configs do, and as such shows this error: kernel/cgroup/cgroup.c: In function 'cgroup_local_stat_show': kernel/cgroup/cgroup.c:3699:15: error: implicit declaration of function 'cgroup_tryget_css'; did you mean 'cgroup_tryget'? [-Werror=implicit-function-declaration] 3699 | css = cgroup_tryget_css(cgrp, ss); | ^~~~~~~~~~~~~~~~~ | cgroup_tryget kernel/cgroup/cgroup.c:3699:13: warning: assignment to 'struct cgroup_subsys_state *' from 'int' makes pointer from integer without a cast [-Wint-conversion] 3699 | css = cgroup_tryget_css(cgrp, ss); | ^ because cgroup_tryget_css() only exists when CGROUP_SCHED is enabled, and the cgroup_local_stat_show() function should similarly be guarded by that config option. Move things around a bit to fix this all. Fixes: d1d4ff5d ("cgroup: put cgroup_tryget_css() inside CONFIG_CGROUP_SCHED") Reported-by:
Sudip Mukherjee <sudipm.mukherjee@gmail.com> Cc: Miaohe Lin <linmiaohe@huawei.com> Cc: Tejun Heo <tj@kernel.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Sudip Mukherjee authored
Fix the typo which resulted in the driver using FB_DEFAULT_IOMEM_HELPERS instead of FB_DEFAULT_IOMEM_OPS as the fbdev I/O helpers. Fixes: 50112608 ("fbdev/g364fb: Use fbdev I/O helpers") Suggested-by:
Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by:
Sudip Mukherjee <sudipm.mukherjee@gmail.com> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommuLinus Torvalds authored
Pull iommu updates from Joerg Roedel: "Core changes: - Consolidate probe_device path - Make the PCI-SAC IOVA allocation trick PCI-only AMD IOMMU: - Consolidate PPR log handling - Interrupt handling improvements - Refcount fixes for amd_iommu_v2 driver Intel VT-d driver: - Enable idxd device DMA with pasid through iommu dma ops - Lift RESV_DIRECT check from VT-d driver to core - Miscellaneous cleanups and fixes ARM-SMMU drivers: - Device-tree binding updates: - Add additional compatible strings for Qualcomm SoCs - Allow ASIDs to be configured in the DT to work around Qualcomm's broken hypervisor - Fix clocks for Qualcomm's MSM8998 SoC - SMMUv2: - Support for Qualcomm's legacy firmware implementation featured on at least MSM8956 and MSM8976 - Match compatible strings for Qualcomm SM6350 and SM6375 SoC variants - SMMUv3: - Use 'ida' instead of a bitmap for VMID allocation - Rockchip IOMMU: - Lift page-table allocation restrictions on newer hardware - Mediatek IOMMU: - Add MT8188 IOMMU Support - Renesas IOMMU: - Allow PCIe devices .. and the usual set of cleanups an smaller fixes" * tag 'iommu-updates-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (64 commits) iommu: Explicitly include correct DT includes iommu/amd: Remove unused declarations iommu/arm-smmu-qcom: Add SM6375 SMMUv2 iommu/arm-smmu-qcom: Add SM6350 DPU compatible iommu/arm-smmu-qcom: Add SM6375 DPU compatible iommu/arm-smmu-qcom: Sort the compatible list alphabetically dt-bindings: arm-smmu: Fix MSM8998 clocks description iommu/vt-d: Remove unused extern declaration dmar_parse_dev_scope() iommu/vt-d: Fix to convert mm pfn to dma pfn iommu/vt-d: Fix to flush cache of PASID directory table iommu/vt-d: Remove rmrr check in domain attaching device path iommu: Prevent RESV_DIRECT devices from blocking domains dmaengine/idxd: Re-enable kernel workqueue under DMA API iommu/vt-d: Add set_dev_pasid callback for dma domain iommu/vt-d: Prepare for set_dev_pasid callback iommu/vt-d: Make prq draining code generic iommu/vt-d: Remove pasid_mutex iommu/vt-d: Add domain_flush_pasid_iotlb() iommu: Move global PASID allocation from SVA to core iommu: Generalize PASID 0 for normal DMA w/o PASID ...
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git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdmaLinus Torvalds authored
Pull rdma updates from Jason Gunthorpe: "Many small changes across the subystem, some highlights: - Usual driver cleanups in qedr, siw, erdma, hfi1, mlx4/5, irdma, mthca, hns, and bnxt_re - siw now works over tunnel and other netdevs with a MAC address by removing assumptions about a MAC/GID from the connection manager - "Doorbell Pacing" for bnxt_re - this is a best effort scheme to allow userspace to slow down the doorbell rings if the HW gets full - irdma egress VLAN priority, better QP/WQ sizing - rxe bug fixes in queue draining and srq resizing - Support more ethernet speed options in the core layer - DMABUF support for bnxt_re - Multi-stage MTT support for erdma to allow much bigger MR registrations - A irdma fix with a CVE that came in too late to go to -rc, missing bounds checking for 0 length MRs" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (87 commits) IB/hfi1: Reduce printing of errors during driver shut down RDMA/hfi1: Move user SDMA system memory pinning code to its own file RDMA/hfi1: Use list_for_each_entry() helper RDMA/mlx5: Fix trailing */ formatting in block comment RDMA/rxe: Fix redundant break statement in switch-case. RDMA/efa: Fix wrong resources deallocation order RDMA/siw: Call llist_reverse_order in siw_run_sq RDMA/siw: Correct wrong debug message RDMA/siw: Balance the reference of cep->kref in the error path Revert "IB/isert: Fix incorrect release of isert connection" RDMA/bnxt_re: Fix kernel doc errors RDMA/irdma: Prevent zero-length STAG registration RDMA/erdma: Implement hierarchical MTT RDMA/erdma: Refactor the storage structure of MTT entries RDMA/erdma: Renaming variable names and field names of struct erdma_mem RDMA/hns: Support hns HW stats RDMA/hns: Dump whole QP/CQ/MR resource in raw RDMA/irdma: Add missing kernel-doc in irdma_setup_umode_qp() RDMA/mlx4: Copy union directly RDMA/irdma: Drop unused kernel push code ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 fixes from Dave Hansen: "The most important fix here adds a missing CPU model to the recent Gather Data Sampling (GDS) mitigation list to ensure that mitigations are available on that CPU. There are also a pair of warning fixes, and closure of a covert channel that pops up when protection keys are disabled. Summary: - Mark all Skylake CPUs as vulnerable to GDS - Fix PKRU covert channel - Fix -Wmissing-variable-declarations warning for ia32_xyz_class - Fix kernel-doc annotation warning" * tag 'x86-urgent-2023-09-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/fpu/xstate: Fix PKRU covert channel x86/irq/i8259: Fix kernel-doc annotation warning x86/speculation: Mark all Skylake CPUs as vulnerable to GDS x86/audit: Fix -Wmissing-variable-declarations warning for ia32_xyz_class
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git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-traceLinus Torvalds authored
Pull tracing updates from Steven Rostedt: "User visible changes: - Added a way to easier filter with cpumasks: # echo 'cpumask & CPUS{17-42}' > /sys/kernel/tracing/events/ipi_send_cpumask/filter - Show actual size of ring buffer after modifying the ring buffer size via buffer_size_kb. Currently it just returns what was written, but the actual size rounds up to the sub buffer size. Show that real size instead. Major changes: - Added "eventfs". This is the code that handles the inodes and dentries of tracefs/events directory. As there are thousands of events, and each event has several inodes and dentries that currently exist even when tracing is never used, they take up precious memory. Instead, eventfs will allocate the inodes and dentries in a JIT way (similar to what procfs does). There is now metadata that handles the events and subdirectories, and will create the inodes and dentries when they are used. Note, I also have patches that remove the subdirectory meta data, but will wait till the next merge window before applying them. It's a little more complex, and I want to make sure the dynamic code works properly before adding more complexity, making it easier to revert if need be. Minor changes: - Optimization to user event list traversal - Remove intermediate permission of tracefs files (note the intermediate permission removes all access to the files so it is not a security concern, but just a clean up) - Add the complex fix to FORTIFY_SOURCE to the kernel stack event logic - Other minor cleanups" * tag 'trace-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (29 commits) tracefs: Remove kerneldoc from struct eventfs_file tracefs: Avoid changing i_mode to a temp value tracing/user_events: Optimize safe list traversals ftrace: Remove empty declaration ftrace_enable_daemon() and ftrace_disable_daemon() tracing: Remove unused function declarations tracing/filters: Document cpumask filtering tracing/filters: Further optimise scalar vs cpumask comparison tracing/filters: Optimise CPU vs cpumask filtering when the user mask is a single CPU tracing/filters: Optimise scalar vs cpumask filtering when the user mask is a single CPU tracing/filters: Optimise cpumask vs cpumask filtering when user mask is a single CPU tracing/filters: Enable filtering the CPU common field by a cpumask tracing/filters: Enable filtering a scalar field by a cpumask tracing/filters: Enable filtering a cpumask field by another cpumask tracing/filters: Dynamically allocate filter_pred.regex test: ftrace: Fix kprobe test for eventfs eventfs: Move tracing/events to eventfs eventfs: Implement removal of meta data from eventfs eventfs: Implement functions to create files and dirs when accessed eventfs: Implement eventfs lookup, read, open functions eventfs: Implement eventfs file add functions ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/wqLinus Torvalds authored
Pull workqueue updates from Tejun Heo: - Unbound workqueues now support more flexible affinity scopes. The default behavior is to soft-affine according to last level cache boundaries. A work item queued from a given LLC is executed by a worker running on the same LLC but the worker may be moved across cache boundaries as the scheduler sees fit. On machines which multiple L3 caches, which are becoming more popular along with chiplet designs, this improves cache locality while not harming work conservation too much. Unbound workqueues are now also a lot more flexible in terms of execution affinity. Differeing levels of affinity scopes are supported and both the default and per-workqueue affinity settings can be modified dynamically. This should help working around amny of sub-optimal behaviors observed recently with asymmetric ARM CPUs. This involved signficant restructuring of workqueue code. Nothing was reported yet but there's some risk of subtle regressions. Should keep an eye out. - Rescuer workers now has more identifiable comms. - workqueue.unbound_cpus added so that CPUs which can be used by workqueue can be constrained early during boot. - Now that all the in-tree users have been flushed out, trigger warning if system-wide workqueues are flushed. * tag 'wq-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/wq: (31 commits) workqueue: fix data race with the pwq->stats[] increment workqueue: Rename rescuer kworker workqueue: Make default affinity_scope dynamically updatable workqueue: Add "Affinity Scopes and Performance" section to documentation workqueue: Implement non-strict affinity scope for unbound workqueues workqueue: Add workqueue_attrs->__pod_cpumask workqueue: Factor out need_more_worker() check and worker wake-up workqueue: Factor out work to worker assignment and collision handling workqueue: Add multiple affinity scopes and interface to select them workqueue: Modularize wq_pod_type initialization workqueue: Add tools/workqueue/wq_dump.py which prints out workqueue configuration workqueue: Generalize unbound CPU pods workqueue: Factor out clearing of workqueue-only attrs fields workqueue: Factor out actual cpumask calculation to reduce subtlety in wq_update_pod() workqueue: Initialize unbound CPU pods later in the boot workqueue: Move wq_pod_init() below workqueue_init() workqueue: Rename NUMA related names to use pod instead workqueue: Rename workqueue_attrs->no_numa to ->ordered workqueue: Make unbound workqueues to use per-cpu pool_workqueues workqueue: Call wq_update_unbound_numa() on all CPUs in NUMA node on CPU hotplug ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroupLinus Torvalds authored
Pull cgroup updates from Tejun Heo: - Per-cpu cpu usage stats are now tracked This currently isn't printed out in the cgroupfs interface and can only be accessed through e.g. BPF. Should decide on a not-too-ugly way to show per-cpu stats in cgroupfs - cpuset received some cleanups and prepatory patches for the pending cpus.exclusive patchset which will allow cpuset partitions to be created below non-partition parents, which should ease the management of partition cpusets - A lot of code and documentation cleanup patches - tools/testing/selftests/cgroup/test_cpuset.c added * tag 'cgroup-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (32 commits) cgroup: Avoid -Wstringop-overflow warnings cgroup:namespace: Remove unused cgroup_namespaces_init() cgroup/rstat: Record the cumulative per-cpu time of cgroup and its descendants cgroup: clean up if condition in cgroup_pidlist_start() cgroup: fix obsolete function name in cgroup_destroy_locked() Documentation: cgroup-v2.rst: Correct number of stats entries cgroup: fix obsolete function name above css_free_rwork_fn() cgroup/cpuset: fix kernel-doc cgroup: clean up printk() cgroup: fix obsolete comment above cgroup_create() docs: cgroup-v1: fix typo docs: cgroup-v1: correct the term of Page Cache organization in inode cgroup/misc: Store atomic64_t reads to u64 cgroup/misc: Change counters to be explicit 64bit types cgroup/misc: update struct members descriptions cgroup: remove cgrp->kn check in css_populate_dir() cgroup: fix obsolete function name cgroup: use cached local variable parent in for loop cgroup: remove obsolete comment above struct cgroupstats cgroup: put cgroup_tryget_css() inside CONFIG_CGROUP_SCHED ...
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git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpuLinus Torvalds authored
Pull percpu updates from Dennis Zhou: "One bigger change to percpu_counter's api allowing for init and destroy of multiple counters via percpu_counter_init_many() and percpu_counter_destroy_many(). This is used to help begin remediating a performance regression with percpu rss stats. Additionally, it seems larger core count machines are feeling the burden of the single threaded allocation of percpu. Mateusz is thinking about it and I will spend some time on it too. percpu: - A couple cleanups by Baoquan He and Bibo Mao. The only behavior change is to start printing messages if we're under the warn limit for failed atomic allocations. percpu_counter: - Shakeel introduced percpu counters into mm_struct which caused percpu allocations be on the hot path [1]. Originally I spent some time trying to improve the percpu allocator, but instead preferred what Mateusz Guzik proposed grouping at the allocation site, percpu_counter_init_many(). This allows a single percpu allocation to be shared by the counters. I like this approach because it creates a shared lifetime by the allocations. Additionally, I believe many inits have higher level synchronization requirements, like percpu_counter does against HOTPLUG_CPU. Therefore we can group these optimizations together" Link: https://lore.kernel.org/linux-mm/20221024052841.3291983-1-shakeelb@google.com/ [1] * tag 'percpu-for-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/dennis/percpu: kernel/fork: group allocation/free of per-cpu counters for mm struct pcpcntr: add group allocation/free mm/percpu.c: print error message too if atomic alloc failed mm/percpu.c: optimize the code in pcpu_setup_first_chunk() a little bit mm/percpu.c: remove redundant check mm/percpu: Remove some local variables in pcpu_populate_pte
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git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds authored
Pull crypto fix from Herbert Xu: "This fixes a random config build failure on powerpc" * tag 'v6.6-p2' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: crypto: powerpc/chacha20,poly1305-p10 - Add dependency on VSX
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git://git.kernel.org/pub/scm/linux/kernel/git/hid/hidLinus Torvalds authored
Pull HID updates from Benjamin Tissoires: - devm fixes for problems that caused use-after-free reports (Rahul Rameshbabu) - Some extensive HID docs (Marco Morandini) - Constification of struct class (Ivan Orlov and Greg Kroah-Hartman) - Google Stadia Force Feedback support (Fabio Baltieri) - Various fixes and new device ID support * tag 'for-linus-2023083101' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (42 commits) HID: logitech-hidpp: rework one more time the retries attempts HID: nvidia-shield: Reference hid_device devm allocation of input_dev name HID: multitouch: Correct devm device reference for hidinput input_dev name HID: uclogic: Correct devm device reference for hidinput input_dev name HID: logitech-dj: Fix error handling in logi_dj_recv_switch_to_dj_mode() HID: i2c-hid: elan: Add ili9882t timing dt-bindings: input: i2c-hid: Introduce Ilitek ili9882t HID: apple: Add "Hailuck" to the list of non-apple keyboards HID: steelseries: arctis_1_battery_request[] should be static MAINTAINERS: update my email address HID: logitech-hidpp: Add support for Logitech MX Anywhere 3 mouse HID: wacom: struct name cleanup HID: wacom: remove unnecessary 'connected' variable from EKR HID: wacom: remove the battery when the EKR is off HID: nvidia-shield: Update Thunderstrike LED instance name to use id HID: nvidia-shield: Add battery support for Thunderstrike HID: nvidia-shield: Remove led_classdev_unregister in thunderstrike_create HID: hid-google-stadiaff: add support for Stadia force feedback HID: logitech-dj: Add support for a new lightspeed receiver iteration HID: logitech-hidpp: Add support for the Pro X Superlight ...
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds authored
Pull media updates from Mauro Carvalho Chehab: - new i2c drivers: ds90ub913, ds90ub953, ds90ub960, dw9719, ds90ub913 - new Intel IVSC MEI drivers - some Mediatek platform drivers were moved to a common location - Intel atomisp2 driver is now working with the main ov2680 driver. Due to that, the atomisp2 ov2680 staging one was removed - the bttv driver was finally converted to videobuf2 framework. This was the last one upstream using videobuf version 1 core. We'll likely remove the old videobuf framework on 6.7 - lots of improvements at atomisp driver: it now works with normal I2C sensors. Several compile-mode dependecies to select between ISP2400 and ISP2401 are now solved in runtime - a new ipu-bridge logic was added to work with IVSC MEI drivers - venus driver gained better support for new VPU versions - the v4l core async framework has gained lots of improvements and cleanups - lots of other cleanups, improvements and driver fixes * tag 'media/v6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (358 commits) media: ivsc: Add ACPI dependency media: bttv: convert to vb2 media: bttv: use audio defaults for winfast2000 media: bttv: refactor bttv_set_dma() media: bttv: move vbi_skip/vbi_count out of buffer media: bttv: remove crop info from bttv_buffer media: bttv: remove tvnorm field from bttv_buffer media: bttv: remove format field from bttv_buffer media: bttv: move do_crop flag out of bttv_fh media: bttv: copy vbi_fmt from bttv_fh media: bttv: copy vid fmt/width/height from fh media: bttv: radio use v4l2_fh instead of bttv_fh media: bttv: replace BUG with WARN_ON media: bttv: use video_drvdata to get bttv media: i2c: rdacm21: Fix uninitialized value media: coda: Remove duplicated include media: vivid: fix the racy dev->radio_tx_rds_owner media: i2c: ccs: Check rules is non-NULL media: i2c: ds90ub960: Fix PLL config for 1200 MHz CSI rate media: i2c: ds90ub953: Fix use of uninitialized variables ...
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git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdevLinus Torvalds authored
Pull fbdev updates from Helge Deller: - Drop the mx3fb driver - Use list_for_each_entry() helper in fbcore code - Shorten neofb product names for fb-fix id field - reduce memory usage in ssd1307fb * tag 'fbdev-for-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: fbdev: Update fbdev source file paths fbdev: ssd1307fb: Use bool for ssd1307fb_deviceinfo flags fbdev: neofb: Shorten Neomagic product name in info struct fbdev: mx3fb: Remove the driver fbdev/core: Use list_for_each_entry() helper
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-miscLinus Torvalds authored
Pull char/misc driver updates from Greg KH: "Here is the big set of char/misc and other small driver subsystem changes for 6.6-rc1. Stuff all over the place here, lots of driver updates and changes and new additions. Short summary is: - new IIO drivers and updates - Interconnect driver updates - fpga driver updates and additions - fsi driver updates - mei driver updates - coresight driver updates - nvmem driver updates - counter driver updates - lots of smaller misc and char driver updates and additions All of these have been in linux-next for a long time with no reported problems" * tag 'char-misc-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (267 commits) nvmem: core: Notify when a new layout is registered nvmem: core: Do not open-code existing functions nvmem: core: Return NULL when no nvmem layout is found nvmem: core: Create all cells before adding the nvmem device nvmem: u-boot-env:: Replace zero-length array with DECLARE_FLEX_ARRAY() helper nvmem: sec-qfprom: Add Qualcomm secure QFPROM support dt-bindings: nvmem: sec-qfprom: Add bindings for secure qfprom dt-bindings: nvmem: Add compatible for QCM2290 nvmem: Kconfig: Fix typo "drive" -> "driver" nvmem: Explicitly include correct DT includes nvmem: add new NXP QorIQ eFuse driver dt-bindings: nvmem: Add t1023-sfp efuse support dt-bindings: nvmem: qfprom: Add compatible for MSM8226 nvmem: uniphier: Use devm_platform_get_and_ioremap_resource() nvmem: qfprom: do some cleanup nvmem: stm32-romem: Use devm_platform_get_and_ioremap_resource() nvmem: rockchip-efuse: Use devm_platform_get_and_ioremap_resource() nvmem: meson-mx-efuse: Convert to devm_platform_ioremap_resource() nvmem: lpc18xx_otp: Convert to devm_platform_ioremap_resource() nvmem: brcm_nvram: Use devm_platform_get_and_ioremap_resource() ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-coreLinus Torvalds authored
Pull driver core updates from Greg KH: "Here is a small set of driver core updates and additions for 6.6-rc1. Included in here are: - stable kernel documentation updates - class structure const work from Ivan on various subsystems - kernfs tweaks - driver core tests! - kobject sanity cleanups - kobject structure reordering to save space - driver core error code handling fixups - other minor driver core cleanups All of these have been in linux-next for a while with no reported problems" * tag 'driver-core-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (32 commits) driver core: Call in reversed order in device_platform_notify_remove() driver core: Return proper error code when dev_set_name() fails kobject: Remove redundant checks for whether ktype is NULL kobject: Add sanity check for kset->kobj.ktype in kset_register() drivers: base: test: Add missing MODULE_* macros to root device tests drivers: base: test: Add missing MODULE_* macros for platform devices tests drivers: base: Free devm resources when unregistering a device drivers: base: Add basic devm tests for platform devices drivers: base: Add basic devm tests for root devices kernfs: fix missing kernfs_iattr_rwsem locking docs: stable-kernel-rules: mention that regressions must be prevented docs: stable-kernel-rules: fine-tune various details docs: stable-kernel-rules: make the examples for option 1 a proper list docs: stable-kernel-rules: move text around to improve flow docs: stable-kernel-rules: improve structure by changing headlines base/node: Remove duplicated include kernfs: attach uuid for every kernfs and report it in fsid kernfs: add stub helper for kernfs_generic_poll() x86/resctrl: make pseudo_lock_class a static const structure x86/MSR: make msr_class a static const structure ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/ttyLinus Torvalds authored
Pull tty/serial driver updates from Greg KH: "Here is the big set of tty and serial driver changes for 6.6-rc1. Lots of cleanups in here this cycle, and some driver updates. Short summary is: - Jiri's continued work to make the tty code and apis be a bit more sane with regards to modern kernel coding style and types - cpm_uart driver updates - n_gsm updates and fixes - meson driver updates - sc16is7xx driver updates - 8250 driver updates for different hardware types - qcom-geni driver fixes - tegra serial driver change - stm32 driver updates - synclink_gt driver cleanups - tty structure size reduction All of these have been in linux-next this week with no reported issues. The last bit of cleanups from Jiri and the tty structure size reduction came in last week, a bit late but as they were just style changes and size reductions, I figured they should get into this merge cycle so that others can work on top of them with no merge conflicts" * tag 'tty-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (199 commits) tty: shrink the size of struct tty_struct by 40 bytes tty: n_tty: deduplicate copy code in n_tty_receive_buf_real_raw() tty: n_tty: extract ECHO_OP processing to a separate function tty: n_tty: unify counts to size_t tty: n_tty: use u8 for chars and flags tty: n_tty: simplify chars_in_buffer() tty: n_tty: remove unsigned char casts from character constants tty: n_tty: move newline handling to a separate function tty: n_tty: move canon handling to a separate function tty: n_tty: use MASK() for masking out size bits tty: n_tty: make n_tty_data::num_overrun unsigned tty: n_tty: use time_is_before_jiffies() in n_tty_receive_overrun() tty: n_tty: use 'num' for writes' counts tty: n_tty: use output character directly tty: n_tty: make flow of n_tty_receive_buf_common() a bool Revert "tty: serial: meson: Add a earlycon for the T7 SoC" Documentation: devices.txt: Fix minors for ttyCPM* Documentation: devices.txt: Remove ttySIOC* Documentation: devices.txt: Remove ttyIOC* serial: 8250_bcm7271: improve bcm7271 8250 port ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/stagingLinus Torvalds authored
Pull staging driver updates from Greg KH: "Here are a set of staging driver cleanups for 6.6-rc1. Nothing huge in here at all, overall we dropped a few hundred lines of code, it's been a quiet development cycle for this subsystem. Nothing stands out, everything can be categorized as "minor coding style cleanups for staging drivers" and there was one race condition fixed. Full details in the shortlog. All have been in linux-next for a while with no reported problems" * tag 'staging-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (71 commits) staging: rtl8192e: Annotate struct rtllib_txb with __counted_by staging: greybus: fix alignment of open parenthesis staging: sm750fb: fix sii164InitChip function name staging: vme_user: fix check lines should not end with a '(' staging: vme_user: fix check blank lines not necessary staging: rtl8723bs: Use helpers to check broadcast and multicast Ether addresses staging: vt6655: replace camel case by snake case staging: rtl8192e: Remove unsupported mode IW_MODE_MESH staging: rtl8192e: Remove unsupported mode IW_MODE_REPEAT staging: rtl8192e: Remove unused function rtllib_start_master_bss() staging: rtl8192e: Remove unsupported mode IW_MODE_MASTER staging: vt6655: Change camel case variables to snake case staging: fieldbus: arcx-anybus: Remove redundant of_match_ptr() staging: vme_user: fix alignment of open parenthesis Staging: rtl8192e: Rename function RxBaInactTimeout Staging: rtl8192e: Rename function TxBaInactTimeout Staging: rtl8192e: Rename function BaSetupTimeOut Staging: rtl8192e: Rename function TsInitDelBA Staging: rtl8192e: Rename function TsInitAddBA staging: vme_user: fix check alignment should match open parenthesis ...
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git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usbLinus Torvalds authored
Pull USB / Thunderbolt / PHY driver updates from Greg KH: "Here is the big set of USB, Thunderbolt, and PHY driver updates for 6.6-rc1. Included in here are: - PHY driver additions and cleanups - Thunderbolt minor additions and fixes - USB MIDI 2 gadget support added - dwc3 driver updates and additions - Removal of some old USB wireless code that was missed when that codebase was originally removed a few years ago, cleaning up some core USB code paths - USB core potential use-after-free fixes that syzbot from different people/groups keeps tripping over - typec updates and additions - gadget fixes and cleanups - loads of smaller USB core and driver cleanups all over the place Full details are in the shortlog. All of these have been in linux-next for a while with no reported problems" * tag 'usb-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (154 commits) platform/chrome: cros_ec_typec: Configure Retimer cable type tcpm: Avoid soft reset when partner does not support get_status usb: typec: tcpm: reset counter when enter into unattached state after try role usb: typec: tcpm: set initial svdm version based on pd revision USB: serial: option: add FOXCONN T99W368/T99W373 product USB: serial: option: add Quectel EM05G variant (0x030e) usb: dwc2: add pci_device_id driver_data parse support usb: gadget: remove max support speed info in bind operation usb: gadget: composite: cleanup function config_ep_by_speed_and_alt() usb: gadget: config: remove max speed check in usb_assign_descriptors() usb: gadget: unconditionally allocate hs/ss descriptor in bind operation usb: gadget: f_uvc: change endpoint allocation in uvc_function_bind() usb: gadget: add a inline function gether_bitrate() usb: gadget: use working speed to calcaulate network bitrate and qlen dt-bindings: usb: samsung,exynos-dwc3: Add Exynos850 support usb: dwc3: exynos: Add support for Exynos850 variant usb: gadget: udc-xilinx: fix incorrect type in assignment warning usb: gadget: udc-xilinx: fix cast from restricted __le16 warning usb: gadget: udc-xilinx: fix restricted __le16 degrades to integer warning USB: dwc2: hande irq on dead controller correctly ...
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Linus Torvalds authored
Merge tag 'platform-drivers-x86-v6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver updates from Hans de Goede: - hp-bioscfg: New firmware-attributes driver for changing BIOS settings from within Linux - asus-wmi: Add charger mode, middle fan and eGPU settings support - ideapad: Support keyboard backlight control on more models - mellanox: Support for new models - sel-3350: New LED and power-supply driver for this industrial mainboard - simatic-ipc: Add RTC battery monitor and various new models support - miscellaneous other cleanups / fixes * tag 'platform-drivers-x86-v6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (101 commits) platform/x86: asus-wmi: corrections to egpu safety check platform/x86: mlx-platform: Add dependency on PCI to Kconfig platform/x86: ideapad-laptop: Add support for keyboard backlights using KBLC ACPI symbol platform/x86/amd/pmc: Fix build error with randconfig platform/x86/amd/pmf: Fix a missing cleanup path watchdog: simatic: Use idiomatic selection of P2SB platform/x86: p2sb: Make the Kconfig symbol hidden Documentation/ABI: Add new attribute for mlxreg-io sysfs interfaces platform: mellanox: nvsw-sn2201: change fans i2c busses. platform: mellanox: mlxreg-hotplug: Extend condition for notification callback processing platform: mellanox: Add initial support for PCIe based programming logic device platform: mellanox: mlx-platform: Get interrupt line through ACPI platform: mellanox: mlx-platform: Introduce ACPI init flow platform: mellanox: mlx-platform: Prepare driver to allow probing through ACPI infrastructure platform: mellanox: mlx-platform: Add reset callback platform: mellanox: Cosmetic changes platform: mellanox: mlx-platform: Modify power off callback platform: mellanox: mlx-platform: add support for additional CPLD platform: mellanox: mlx-platform: Add reset cause attribute platform: mellanox: mlx-platform: Modify health and power hotplug action ...
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- Sep 01, 2023
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linuxLinus Torvalds authored
Pull RISC-V updates from Palmer Dabbelt: - Support for the new "riscv,isa-extensions" and "riscv,isa-base" device tree interfaces for probing extensions - Support for userspace access to the performance counters - Support for more instructions in kprobes - Crash kernels can be allocated above 4GiB - Support for KCFI - Support for ELFs in !MMU configurations - ARCH_KMALLOC_MINALIGN has been reduced to 8 - mmap() defaults to sv48-sized addresses, with longer addresses hidden behind a hint (similar to Arm and Intel) - Also various fixes and cleanups * tag 'riscv-for-linus-6.6-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (51 commits) lib/Kconfig.debug: Restrict DEBUG_INFO_SPLIT for RISC-V riscv: support PREEMPT_DYNAMIC with static keys riscv: Move create_tmp_mapping() to init sections riscv: Mark KASAN tmp* page tables variables as static riscv: mm: use bitmap_zero() API riscv: enable DEBUG_FORCE_FUNCTION_ALIGN_64B riscv: remove redundant mv instructions RISC-V: mm: Document mmap changes RISC-V: mm: Update pgtable comment documentation RISC-V: mm: Add tests for RISC-V mm RISC-V: mm: Restrict address space for sv39,sv48,sv57 riscv: enable DMA_BOUNCE_UNALIGNED_KMALLOC for !dma_coherent riscv: allow kmalloc() caches aligned to the smallest value riscv: support the elf-fdpic binfmt loader binfmt_elf_fdpic: support 64-bit systems riscv: Allow CONFIG_CFI_CLANG to be selected riscv/purgatory: Disable CFI riscv: Add CFI error handling riscv: Add ftrace_stub_graph riscv: Add types to indirectly called assembly functions ...
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https://github.com/c-sky/csky-linuxLinus Torvalds authored
Pull arch/csky fix from Guo Ren: - Fix compile error by missing header file * tag 'csky-for-linus-6.6-2' of https://github.com/c-sky/csky-linux: csky: Fixup compile error
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git://git.linux-nfs.org/projects/anna/linux-nfsLinus Torvalds authored
Pull NFS client updates from Anna Schumaker: "New Features: - Enable the NFS v4.2 READ_PLUS operation by default Stable Fixes: - NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info - NFS: Fix a potential data corruption Bugfixes: - Fix various READ_PLUS issues including: - smatch warnings - xdr size calculations - scratch buffer handling - 32bit / highmem xdr page handling - Fix checkpatch errors in file.c - Fix redundant readdir request after an EOF - Fix handling of COPY ERR_OFFLOAD_NO_REQ - Fix assignment of xprtdata.cred Cleanups: - Remove unused xprtrdma function declarations - Clean up an integer overflow check to avoid a warning - Clean up #includes in dns_resolve.c - Clean up nfs4_get_device_info so we don't pass a NULL pointer to __free_page() - Clean up sunrpc TCP socket timeout configuration - Guard against READDIR loops when entry names are too long - Use EXCHID4_FLAG_USE_PNFS_DS for DS servers" * tag 'nfs-for-6.6-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (22 commits) pNFS: Fix assignment of xprtdata.cred NFSv4.2: fix handling of COPY ERR_OFFLOAD_NO_REQ NFS: Guard against READDIR loop when entry names exceed MAXNAMELEN NFSv4.1: use EXCHGID4_FLAG_USE_PNFS_DS for DS server NFS/pNFS: Set the connect timeout for the pNFS flexfiles driver SUNRPC: Don't override connect timeouts in rpc_clnt_add_xprt() SUNRPC: Allow specification of TCP client connect timeout at setup SUNRPC: Refactor and simplify connect timeout SUNRPC: Set the TCP_SYNCNT to match the socket timeout NFS: Fix a potential data corruption nfs: fix redundant readdir request after get eof nfs/blocklayout: Use the passed in gfp flags filemap: Fix errors in file.c NFSv4/pnfs: minor fix for cleanup path in nfs4_get_device_info NFS: Move common includes outside ifdef SUNRPC: clean up integer overflow check xprtrdma: Remove unused function declaration rpcrdma_bc_post_recv() NFS: Enable the READ_PLUS operation by default SUNRPC: kmap() the xdr pages during decode NFSv4.2: Rework scratch handling for READ_PLUS (again) ...
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git://git.kernel.org/pub/scm/linux/kernel/git/cel/linuxLinus Torvalds authored
Pull nfsd updates from Chuck Lever: "I'm thrilled to announce that the Linux in-kernel NFS server now offers NFSv4 write delegations. A write delegation enables a client to cache data and metadata for a single file more aggressively, reducing network round trips and server workload. Many thanks to Dai Ngo for contributing this facility, and to Jeff Layton and Neil Brown for reviewing and testing it. This release also sees the removal of all support for DES- and triple-DES-based Kerberos encryption types in the kernel's SunRPC implementation. These encryption types have been deprecated by the Internet community for years and are considered insecure. This change affects both the in-kernel NFS client and server. The server's UDP and TCP socket transports have now fully adopted David Howells' new bio_vec iterator so that no more than one sendmsg() call is needed to transmit each RPC message. In particular, this helps kTLS optimize record boundaries when sending RPC-with-TLS replies, and it takes the server a baby step closer to handling file I/O via folios. We've begun work on overhauling the SunRPC thread scheduler to remove a costly linked-list walk when looking for an idle RPC service thread to wake. The pre-requisites are included in this release. Thanks to Neil Brown for his ongoing work on this improvement" * tag 'nfsd-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (56 commits) Documentation: Add missing documentation for EXPORT_OP flags SUNRPC: Remove unused declaration rpc_modcount() SUNRPC: Remove unused declarations NFSD: da_addr_body field missing in some GETDEVICEINFO replies SUNRPC: Remove return value of svc_pool_wake_idle_thread() SUNRPC: make rqst_should_sleep() idempotent() SUNRPC: Clean up svc_set_num_threads SUNRPC: Count ingress RPC messages per svc_pool SUNRPC: Deduplicate thread wake-up code SUNRPC: Move trace_svc_xprt_enqueue SUNRPC: Add enum svc_auth_status SUNRPC: change svc_xprt::xpt_flags bits to enum SUNRPC: change svc_rqst::rq_flags bits to enum SUNRPC: change svc_pool::sp_flags bits to enum SUNRPC: change cache_head.flags bits to enum SUNRPC: remove timeout arg from svc_recv() SUNRPC: change svc_recv() to return void. SUNRPC: call svc_process() from svc_recv(). nfsd: separate nfsd_last_thread() from nfsd_put() nfsd: Simplify code around svc_exit_thread() call in nfsd() ...
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Jonathan Neuschäfer authored
The files fbmem.c, fb_defio.c, fbsysfs.c, fbmon.c, modedb.c, and fbcmap.c were moved. Drop the path and just keep the file name. Reported by kalekale in #kernel (Libera IRC). Fixes: f7018c21 ("video: move fbdev to drivers/video/fbdev") Fixes: 19757fc8 ("fbdev: move fbdev core files to separate directory") Signed-off-by:
Jonathan Neuschäfer <j.neuschaefer@gmx.net> Signed-off-by:
Helge Deller <deller@gmx.de>
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Geert Uytterhoeven authored
The .need_pwm and .need_chargepump fields in struct ssd1307fb_deviceinfo are flags that can have only two possible values: 0 and 1. Reduce kernel size by changing their types from int to bool. Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Acked-by:
Javier Martinez Canillas <javierm@redhat.com> Signed-off-by:
Helge Deller <deller@gmx.de>
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Helge Deller authored
Avoid those compiler warnings: neofb.c:1959:3: warning: 'snprintf' will always be truncated; specified size is 16, but format string expands to at least 17 [-Wfortify-source] Signed-off-by:
Helge Deller <deller@gmx.de> Reported-by:
Nathan Chancellor <nathan@kernel.org> Reported-by:
Nick Desaulniers <ndesaulniers@google.com> Reviewed-by:
Nick Desaulniers <ndesaulniers@google.com> Link: https://lore.kernel.org/all/CAKwvOdn0xoVWjQ6ufM_rojtKb0f1i1hW-J_xYGfKDNFdHwaeHQ@mail.gmail.com/ Link: https://github.com/ClangBuiltLinux/linux/issues/1923
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git://git.samba.org/ksmbdLinus Torvalds authored
Pull smb server updates from Steve French: - fix potential overflows in decoding create and in session setup requests - cleanup fixes - compounding fixes, including one for MacOS compounded read requests - session setup error handling fix - fix mode bit bug when applying force_directory_mode and force_create_mode - RDMA (smbdirect) write fix * tag '6.6-rc-ksmbd-fixes-part1' of git://git.samba.org/ksmbd: ksmbd: add missing calling smb2_set_err_rsp() on error ksmbd: replace one-element array with flex-array member in struct smb2_ea_info ksmbd: fix slub overflow in ksmbd_decode_ntlmssp_auth_blob() ksmbd: fix wrong DataOffset validation of create context ksmbd: Fix one kernel-doc comment ksmbd: reduce descriptor size if remaining bytes is less than request size ksmbd: fix `force create mode' and `force directory mode' ksmbd: fix wrong interim response on compound ksmbd: add support for read compound ksmbd: switch to use kmemdup_nul() helper
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Linus Torvalds authored
Pull jfs updates from Dave Kleikamp: "A few small fixes" * tag 'jfs-6.6' of github.com:kleikamp/linux-shaggy: jfs: validate max amount of blocks before allocation. jfs: remove redundant initialization to pointer ip jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount FS: JFS: (trivial) Fix grammatical error in extAlloc fs/jfs: prevent double-free in dbUnmount() after failed jfs_remount()
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds authored
Pull ext4 updates from Ted Ts'o: "Many ext4 and jbd2 cleanups and bug fixes: - Cleanups in the ext4 remount code when going to and from read-only - Cleanups in ext4's multiblock allocator - Cleanups in the jbd2 setup/mounting code paths - Performance improvements when appending to a delayed allocation file - Miscellaneous syzbot and other bug fixes" * tag 'ext4_for_linus-6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (60 commits) ext4: fix slab-use-after-free in ext4_es_insert_extent() libfs: remove redundant checks of s_encoding ext4: remove redundant checks of s_encoding ext4: reject casefold inode flag without casefold feature ext4: use LIST_HEAD() to initialize the list_head in mballoc.c ext4: do not mark inode dirty every time when appending using delalloc ext4: rename s_error_work to s_sb_upd_work ext4: add periodic superblock update check ext4: drop dio overwrite only flag and associated warning ext4: add correct group descriptors and reserved GDT blocks to system zone ext4: remove unused function declaration ext4: mballoc: avoid garbage value from err ext4: use sbi instead of EXT4_SB(sb) in ext4_mb_new_blocks_simple() ext4: change the type of blocksize in ext4_mb_init_cache() ext4: fix unttached inode after power cut with orphan file feature enabled jbd2: correct the end of the journal recovery scan range ext4: ext4_get_{dev}_journal return proper error value ext4: cleanup ext4_get_dev_journal() and ext4_get_journal() jbd2: jbd2_journal_init_{dev,inode} return proper error return value jbd2: drop useless error tag in jbd2_journal_wipe() ...
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git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlmLinus Torvalds authored
Pull dlm updates from David Teigland: - Allow blocking posix lock requests to be interrupted while waiting. This requires a cancel request to be sent to the userspace daemon where posix lock requests are processed across the cluster. - Fix a posix lock patch from the previous cycle in which lock requests from different file systems could be mixed up. - Fix some long standing problems with nfs posix lock cancelation. - Add a new debugfs file for printing queued callbacks. - Stop modifying buffers that have been used to receive a message. - Misc cleanups and some refactoring. * tag 'dlm-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: dlm: fix plock lookup when using multiple lockspaces fs: dlm: don't use RCOM_NAMES for version detection fs: dlm: create midcomms nodes when configure fs: dlm: constify receive buffer fs: dlm: drop rxbuf manipulation in dlm_recover_master_copy fs: dlm: drop rxbuf manipulation in dlm_copy_master_names fs: dlm: get recovery sequence number as parameter fs: dlm: cleanup lock order fs: dlm: remove clear_members_cb fs: dlm: add plock dev tracepoints fs: dlm: check on plock ops when exit dlm fs: dlm: debugfs for queued callbacks fs: dlm: remove unused processed_nodes fs: dlm: add missing spin_unlock fs: dlm: fix F_CANCELLK to cancel pending request fs: dlm: allow to F_SETLKW getting interrupted fs: dlm: remove twice newline
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git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfsLinus Torvalds authored
Pull more superblock follow-on fixes from Christian Brauner: "This contains two more small follow-up fixes for the super work this cycle. I went through all filesystems once more and detected two minor issues that still needed fixing: - Some filesystems support mtd devices (e.g., mount -t jffs2 mtd2 /mnt). The mtd infrastructure uses the sb->s_mtd pointer to find an existing superblock. When the mtd device is put and sb->s_mtd cleared the superblock can still be found fs_supers and so this risks a use-after-free. Add a small patch that aligns mtd with what we did for regular block devices and switch keying to rely on sb->s_dev. (This was tested with mtd devices and jffs2 as xfstests doesn't support mtd devices.) - Switch nfs back to rely on kill_anon_super() so the superblock is removed from the list of active supers before sb->s_fs_info is freed" * tag 'v6.6-vfs.super.fixes.2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: NFS: switch back to using kill_anon_super mtd: key superblock by device number fs: export sget_dev()
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Ingo Molnar authored
Fix up missed semantic mis-merge between commits 161e393c ("mm: Make pte_mkwrite() take a VMA") 27af67f3 ("powerpc/book3s64/mm: enable transparent pud hugepage") where the newly introduced powerpc use of 'pte_mkwrite()' needs to use the 'novma()' versions as per commit 2f0584f3 ("mm: Rename arch pte_mkwrite()'s to pte_mkwrite_novma()"). Fixes: df57721f ("Merge tag 'x86_shstk_for_6.6-rc1' of [...]") Signed-off-by:
Ingo Molnar <mingo@kernel.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Jim Mattson authored
When XCR0[9] is set, PKRU can be read and written from userspace with XSAVE and XRSTOR, even when CR4.PKE is clear. Clear XCR0[9] when protection keys are disabled. Reported-by:
Tavis Ormandy <taviso@google.com> Signed-off-by:
Jim Mattson <jmattson@google.com> Signed-off-by:
Ingo Molnar <mingo@kernel.org> Acked-by:
Dave Hansen <dave.hansen@linux.intel.com> Link: https://lore.kernel.org/r/20230831043228.1194256-1-jmattson@google.com
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Fabio Estevam authored
The mx3fb driver does not support devicetree and i.MX has been converted to a DT-only platform since kernel 5.10. As there is no user for this driver anymore, just remove it. Signed-off-by:
Fabio Estevam <festevam@denx.de> Reviewed-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Helge Deller <deller@gmx.de>
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Jinjie Ruan authored
Convert list_for_each() to list_for_each_entry() so that the pos list_head pointer and list_entry() call are no longer needed, which can reduce a few lines of code. No functional changed. Signed-off-by:
Jinjie Ruan <ruanjinjie@huawei.com> Signed-off-by:
Helge Deller <deller@gmx.de>
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git://git.armlinux.org.uk/~rmk/linux-armLinus Torvalds authored
Pull ARM updates from Russell King: - Refactor VFP code and convert to C code (Ard Biesheuvel) - Fix hardware breakpoint single-stepping using bpf_overflow_handler - Make SMP stop calls asynchronous allowing panic from irq context to work - Fix for kernel-doc warnings for locomo * tag 'for-linus' of git://git.armlinux.org.uk/~rmk/linux-arm: Revert part of ae1f8d79 ("ARM: 9304/1: add prototype for function called only from asm") ARM: 9318/1: locomo: move kernel-doc to prevent warnings ARM: 9317/1: kexec: Make smp stop calls asynchronous ARM: 9316/1: hw_breakpoint: fix single-stepping when using bpf_overflow_handler ARM: entry: Make asm coproc dispatch code NWFPE only ARM: iwmmxt: Use undef hook to enable coprocessor for task ARM: entry: Disregard Thumb undef exception in coproc dispatch ARM: vfp: Use undef hook for handling VFP exceptions ARM: kernel: Get rid of thread_info::used_cp[] array ARM: vfp: Reimplement VFP exception entry in C code ARM: vfp: Remove workaround for Feroceon CPUs ARM: vfp: Record VFP bounces as perf emulation faults
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc updates from Michael Ellerman: - Add HOTPLUG_SMT support (/sys/devices/system/cpu/smt) and honour the configured SMT state when hotplugging CPUs into the system - Combine final TLB flush and lazy TLB mm shootdown IPIs when using the Radix MMU to avoid a broadcast TLBIE flush on exit - Drop the exclusion between ptrace/perf watchpoints, and drop the now unused associated arch hooks - Add support for the "nohlt" command line option to disable CPU idle - Add support for -fpatchable-function-entry for ftrace, with GCC >= 13.1 - Rework memory block size determination, and support 256MB size on systems with GPUs that have hotpluggable memory - Various other small features and fixes Thanks to Andrew Donnellan, Aneesh Kumar K.V, Arnd Bergmann, Athira Rajeev, Benjamin Gray, Christophe Leroy, Frederic Barrat, Gautam Menghani, Geoff Levand, Hari Bathini, Immad Mir, Jialin Zhang, Joel Stanley, Jordan Niethe, Justin Stitt, Kajol Jain, Kees Cook, Krzysztof Kozlowski, Laurent Dufour, Liang He, Linus Walleij, Mahesh Salgaonkar, Masahiro Yamada, Michal Suchanek, Nageswara R Sastry, Nathan Chancellor, Nathan Lynch, Naveen N Rao, Nicholas Piggin, Nick Desaulniers, Omar Sandoval, Randy Dunlap, Reza Arbab, Rob Herring, Russell Currey, Sourabh Jain, Thomas Gleixner, Trevor Woerner, Uwe Kleine-König, Vaibhav Jain, Xiongfeng Wang, Yuan Tan, Zhang Rui, and Zheng Zengkai. * tag 'powerpc-6.6-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (135 commits) macintosh/ams: linux/platform_device.h is needed powerpc/xmon: Reapply "Relax frame size for clang" powerpc/mm/book3s64: Use 256M as the upper limit with coherent device memory attached powerpc/mm/book3s64: Fix build error with SPARSEMEM disabled powerpc/iommu: Fix notifiers being shared by PCI and VIO buses powerpc/mpc5xxx: Add missing fwnode_handle_put() powerpc/config: Disable SLAB_DEBUG_ON in skiroot powerpc/pseries: Remove unused hcall tracing instruction powerpc/pseries: Fix hcall tracepoints with JUMP_LABEL=n powerpc: dts: add missing space before { powerpc/eeh: Use pci_dev_id() to simplify the code powerpc/64s: Move CPU -mtune options into Kconfig powerpc/powermac: Fix unused function warning powerpc/pseries: Rework lppaca_shared_proc() to avoid DEBUG_PREEMPT powerpc: Don't include lppaca.h in paca.h powerpc/pseries: Move hcall_vphn() prototype into vphn.h powerpc/pseries: Move VPHN constants into vphn.h cxl: Drop unused detach_spa() powerpc: Drop zalloc_maybe_bootmem() powerpc/powernv: Use struct opal_prd_msg in more places ...
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull x86 shadow stack support from Dave Hansen: "This is the long awaited x86 shadow stack support, part of Intel's Control-flow Enforcement Technology (CET). CET consists of two related security features: shadow stacks and indirect branch tracking. This series implements just the shadow stack part of this feature, and just for userspace. The main use case for shadow stack is providing protection against return oriented programming attacks. It works by maintaining a secondary (shadow) stack using a special memory type that has protections against modification. When executing a CALL instruction, the processor pushes the return address to both the normal stack and to the special permission shadow stack. Upon RET, the processor pops the shadow stack copy and compares it to the normal stack copy. For more information, refer to the links below for the earlier versions of this patch set" Link: https://lore.kernel.org/lkml/20220130211838.8382-1-rick.p.edgecombe@intel.com/ Link: https://lore.kernel.org/lkml/20230613001108.3040476-1-rick.p.edgecombe@intel.com/ * tag 'x86_shstk_for_6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (47 commits) x86/shstk: Change order of __user in type x86/ibt: Convert IBT selftest to asm x86/shstk: Don't retry vm_munmap() on -EINTR x86/kbuild: Fix Documentation/ reference x86/shstk: Move arch detail comment out of core mm x86/shstk: Add ARCH_SHSTK_STATUS x86/shstk: Add ARCH_SHSTK_UNLOCK x86: Add PTRACE interface for shadow stack selftests/x86: Add shadow stack test x86/cpufeatures: Enable CET CR4 bit for shadow stack x86/shstk: Wire in shadow stack interface x86: Expose thread features in /proc/$PID/status x86/shstk: Support WRSS for userspace x86/shstk: Introduce map_shadow_stack syscall x86/shstk: Check that signal frame is shadow stack mem x86/shstk: Check that SSP is aligned on sigreturn x86/shstk: Handle signals for shadow stack x86/shstk: Introduce routines modifying shstk x86/shstk: Handle thread shadow stack x86/shstk: Add user-mode shadow stack support ...
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Vincenzo Palazzo authored
Fix this warning: arch/x86/kernel/i8259.c:235: warning: This comment starts with '/**', but isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst * ELCR registers (0x4d0, 0x4d1) control edge/level of IRQ CC arch/x86/kernel/irqinit.o Signed-off-by:
Vincenzo Palazzo <vincenzopalazzodev@gmail.com> Signed-off-by:
Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20230830131211.88226-1-vincenzopalazzodev@gmail.com
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Dave Hansen authored
The Gather Data Sampling (GDS) vulnerability is common to all Skylake processors. However, the "client" Skylakes* are now in this list: https://www.intel.com/content/www/us/en/support/articles/000022396/processors.html which means they are no longer included for new vulnerabilities here: https://www.intel.com/content/www/us/en/developer/topic-technology/software-security-guidance/processors-affected-consolidated-product-cpu-model.html or in other GDS documentation. Thus, they were not included in the original GDS mitigation patches. Mark SKYLAKE and SKYLAKE_L as vulnerable to GDS to match all the other Skylake CPUs (which include Kaby Lake). Also group the CPUs so that the ones that share the exact same vulnerabilities are next to each other. Last, move SRBDS to the end of each line. This makes it clear at a glance that SKYLAKE_X is unique. Of the five Skylakes, it is the only "server" CPU and has a different implementation from the clients of the "special register" hardware, making it immune to SRBDS. This makes the diff much harder to read, but the resulting table is worth it. I very much appreciate the report from Michael Zhivich about this issue. Despite what level of support a hardware vendor is providing, the kernel very much needs an accurate and up-to-date list of vulnerable CPUs. More reports like this are very welcome. * Client Skylakes are CPUID 406E3/506E3 which is family 6, models 0x4E and 0x5E, aka INTEL_FAM6_SKYLAKE and INTEL_FAM6_SKYLAKE_L. Reported-by:
Michael Zhivich <mzhivich@akamai.com> Fixes: 8974eb58 ("x86/speculation: Add Gather Data Sampling mitigation") Signed-off-by:
Dave Hansen <dave.hansen@linux.intel.com> Signed-off-by:
Ingo Molnar <mingo@kernel.org> Reviewed-by:
Daniel Sneddon <daniel.sneddon@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org>
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