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2023-08-28Merge tag 'arm64-upstream' of ↵Linus Torvalds4-3/+23
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 updates from Will Deacon: "I think we have a bit less than usual on the architecture side, but that's somewhat balanced out by a large crop of perf/PMU driver updates and extensions to our selftests. CPU features and system registers: - Advertise hinted conditional branch support (FEAT_HBC) to userspace - Avoid false positive "SANITY CHECK" warning when xCR registers differ outside of the length field Documentation: - Fix macro name typo in SME documentation Entry code: - Unmask exceptions earlier on the system call entry path Memory management: - Don't bother clearing PTE_RDONLY for dirty ptes in pte_wrprotect() and pte_modify() Perf and PMU drivers: - Initial support for Coresight TRBE devices on ACPI systems (the coresight driver changes will come later) - Fix hw_breakpoint single-stepping when called from bpf - Fixes for DDR PMU on i.MX8MP SoC - Add NUMA-awareness to Hisilicon PCIe PMU driver - Fix locking dependency issue in Arm DMC620 PMU driver - Workaround Hisilicon erratum 162001900 in the SMMUv3 PMU driver - Add support for Arm CMN-700 r3 parts to the CMN PMU driver - Add support for recent Arm Cortex CPU PMUs - Update Hisilicon PMU maintainers Selftests: - Add a bunch of new features to the hwcap test (JSCVT, PMULL, AES, SHA1, etc) - Fix SSVE test to leave streaming-mode after grabbing the signal context - Add new test for SVE vector-length changes with SME enabled Miscellaneous: - Allow compiler to warn on suspicious looking system register expressions - Work around SDEI firmware bug by aborting any running handlers on a kernel crash - Fix some harmless warnings when building with W=1 - Remove some unused function declarations - Other minor fixes and cleanup" * tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (62 commits) drivers/perf: hisi: Update HiSilicon PMU maintainers arm_pmu: acpi: Add a representative platform device for TRBE arm_pmu: acpi: Refactor arm_spe_acpi_register_device() kselftest/arm64: Fix hwcaps selftest build hw_breakpoint: fix single-stepping when using bpf_overflow_handler arm64/sysreg: refactor deprecated strncpy kselftest/arm64: add jscvt feature to hwcap test kselftest/arm64: add pmull feature to hwcap test kselftest/arm64: add AES feature check to hwcap test kselftest/arm64: add SHA1 and related features to hwcap test arm64: sysreg: Generate C compiler warnings on {read,write}_sysreg_s arguments kselftest/arm64: build BTI tests in output directory perf/imx_ddr: don't enable counter0 if none of 4 counters are used perf/imx_ddr: speed up overflow frequency of cycle drivers/perf: hisi: Schedule perf session according to locality kselftest/arm64: fix a memleak in zt_regs_run() perf/arm-dmc620: Fix dmc620_pmu_irqs_lock/cpu_hotplug_lock circular lock dependency perf/smmuv3: Add MODULE_ALIAS for module auto loading perf/smmuv3: Enable HiSilicon Erratum 162001900 quirk for HIP08/09 kselftest/arm64: Size sycall-abi buffers for the actual maximum VL ...
2023-08-28Merge tag 'sched-core-2023-08-28' of ↵Linus Torvalds4-8/+79
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull scheduler updates from Ingo Molnar: - The biggest change is introduction of a new iteration of the SCHED_FAIR interactivity code: the EEVDF ("Earliest Eligible Virtual Deadline First") scheduler EEVDF too is a virtual-time scheduler, with two parameters (weight and relative deadline), compared to CFS that had weight only. It completely reworks the base scheduler: placement, preemption, picking -- everything LWN.net, as usual, has a terrific writeup about EEVDF: https://lwn.net/Articles/925371/ Preemption (both tick and wakeup) is driven by testing against a fresh pick. Because the tree is now effectively an interval tree, and the selection is no longer the 'leftmost' task, over-scheduling is less of a problem. A lot of the CFS heuristics are removed or replaced by more natural latency-space parameters & constructs In terms of expected performance regressions: we will and can fix everything where a 'good' workload misbehaves with the new scheduler, but EEVDF inevitably changes workload scheduling in a binary fashion, hopefully for the better in the overwhelming majority of cases, but in some cases it won't, especially in adversarial loads that got lucky with the previous code, such as some variants of hackbench. We are trying hard to err on the side of fixing all performance regressions, but we expect some inevitable post-release iterations of that process - Improve load-balancing on hybrid x86 systems: enable cluster scheduling (again) - Improve & fix bandwidth-scheduling on nohz systems - Improve bandwidth-throttling - Use lock guards to simplify and de-goto-ify control flow - Misc improvements, cleanups and fixes * tag 'sched-core-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (43 commits) sched/eevdf/doc: Modify the documented knob to base_slice_ns as well sched/eevdf: Curb wakeup-preemption sched: Simplify sched_core_cpu_{starting,deactivate}() sched: Simplify try_steal_cookie() sched: Simplify sched_tick_remote() sched: Simplify sched_exec() sched: Simplify ttwu() sched: Simplify wake_up_if_idle() sched: Simplify: migrate_swap_stop() sched: Simplify sysctl_sched_uclamp_handler() sched: Simplify get_nohz_timer_target() sched/rt: sysctl_sched_rr_timeslice show default timeslice after reset sched/rt: Fix sysctl_sched_rr_timeslice intial value sched/fair: Block nohz tick_stop when cfs bandwidth in use sched, cgroup: Restore meaning to hierarchical_quota MAINTAINERS: Add Peter explicitly to the psi section sched/psi: Select KERNFS as needed sched/topology: Align group flags when removing degenerate domain sched/fair: remove util_est boosting sched/fair: Propagate enqueue flags into place_entity() ...
2023-08-28Merge tag 'perf-core-2023-08-28' of ↵Linus Torvalds1-9/+5
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull perf event updates from Ingo Molnar: - AMD IBS improvements - Intel PMU driver updates - Extend core perf facilities & the ARM PMU driver to better handle ARM big.LITTLE events - Micro-optimize software events and the ring-buffer code - Misc cleanups & fixes * tag 'perf-core-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/uncore: Remove unnecessary ?: operator around pcibios_err_to_errno() call perf/x86/intel: Add Crestmont PMU x86/cpu: Update Hybrids x86/cpu: Fix Crestmont uarch x86/cpu: Fix Gracemont uarch perf: Remove unused extern declaration arch_perf_get_page_size() perf: Remove unused PERF_PMU_CAP_HETEROGENEOUS_CPUS capability arm_pmu: Remove unused PERF_PMU_CAP_HETEROGENEOUS_CPUS capability perf/x86: Remove unused PERF_PMU_CAP_HETEROGENEOUS_CPUS capability arm_pmu: Add PERF_PMU_CAP_EXTENDED_HW_TYPE capability perf/x86/ibs: Set mem_lvl_num, mem_remote and mem_hops for data_src perf/mem: Add PERF_MEM_LVLNUM_NA to PERF_MEM_NA perf/mem: Introduce PERF_MEM_LVLNUM_UNC perf/ring_buffer: Use local_try_cmpxchg in __perf_output_begin locking/arch: Avoid variable shadowing in local_try_cmpxchg() perf/core: Use local64_try_cmpxchg in perf_swevent_set_period perf/x86: Use local64_try_cmpxchg perf/amd: Prevent grouping of IBS events
2023-08-28Merge tag 'efi-next-for-v6.6' of ↵Linus Torvalds1-32/+21
git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi Pull EFI updates from Ard Biesheuvel: "This primarily covers some cleanup work on the EFI runtime wrappers, which are shared between all EFI architectures except Itanium, and which provide some level of isolation to prevent faults occurring in the firmware code (which runs at the same privilege level as the kernel) from bringing down the system. Beyond that, there is a fix that did not make it into v6.5, and some doc fixes and dead code cleanup. - one bugfix for x86 mixed mode that did not make it into v6.5 - first pass of cleanup for the EFI runtime wrappers - some cosmetic touchups" * tag 'efi-next-for-v6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi: x86/efistub: Fix PCI ROM preservation in mixed mode efi/runtime-wrappers: Clean up white space and add __init annotation acpi/prmt: Use EFI runtime sandbox to invoke PRM handlers efi/runtime-wrappers: Don't duplicate setup/teardown code efi/runtime-wrappers: Remove duplicated macro for service returning void efi/runtime-wrapper: Move workqueue manipulation out of line efi/runtime-wrappers: Use type safe encapsulation of call arguments efi/riscv: Move EFI runtime call setup/teardown helpers out of line efi/arm64: Move EFI runtime call setup/teardown helpers out of line efi/riscv: libstub: Fix comment about absolute relocation efi: memmap: Remove kernel-doc warnings efi: Remove unused extern declaration efi_lookup_mapped_addr()
2023-08-28Merge tag 'x86_misc_for_v6.6_rc1' of ↵Linus Torvalds1-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull misc x86 updates from Borislav Petkov: - Add PCI device IDs for a new AMD family 0x1a CPUs and use them in the respective drivers - Update HPE Superdome Flex maintainers list * tag 'x86_misc_for_v6.6_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/uv: Update HPE Superdome Flex Maintainers EDAC/amd64: Add support for AMD family 1Ah models 00h-1Fh and 40h-4Fh hwmon: (k10temp) Add thermal support for AMD Family 1Ah-based models x86/amd_nb: Add PCI IDs for AMD Family 1Ah-based models
2023-08-28Merge tag 'x86_boot_for_v6.6_rc1' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 boot updates from Borislav Petkov: "Avoid the baremetal decompressor code when booting on an EFI machine. This is mandated by the current tightening of EFI executables requirements when used in a secure boot scenario. More specifically, an EFI executable cannot have a single section with RWX permissions, which conflicts with the in-place kernel decompression that is done today. Instead, the things required by the booting kernel image are done in the EFI stub now. Work by Ard Biesheuvel" * tag 'x86_boot_for_v6.6_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits) x86/efistub: Avoid legacy decompressor when doing EFI boot x86/efistub: Perform SNP feature test while running in the firmware efi/libstub: Add limit argument to efi_random_alloc() x86/decompressor: Factor out kernel decompression and relocation x86/decompressor: Move global symbol references to C code decompress: Use 8 byte alignment x86/efistub: Prefer EFI memory attributes protocol over DXE services x86/efistub: Perform 4/5 level paging switch from the stub x86/decompressor: Merge trampoline cleanup with switching code x86/decompressor: Pass pgtable address to trampoline directly x86/decompressor: Only call the trampoline when changing paging levels x86/decompressor: Call trampoline directly from C code x86/decompressor: Avoid the need for a stack in the 32-bit trampoline x86/decompressor: Use standard calling convention for trampoline x86/decompressor: Call trampoline as a normal function x86/decompressor: Assign paging related global variables earlier x86/decompressor: Store boot_params pointer in callee save register x86/efistub: Clear BSS in EFI handover protocol entrypoint x86/decompressor: Avoid magic offsets for EFI handover entrypoint x86/efistub: Simplify and clean up handover entry code ...
2023-08-28Merge tag 'smp-core-2023-08-28' of ↵Linus Torvalds3-26/+35
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull CPU hotplug updates from Thomas Gleixner: "Updates for the CPU hotplug core: - Support partial SMT enablement. So far the sysfs SMT control only allows to toggle between SMT on and off. That's sufficient for x86 which usually has at max two threads except for the Xeon PHI platform which has four threads per core Though PowerPC has up to 16 threads per core and so far it's only possible to control the number of enabled threads per core via a command line option. There is some way to control this at runtime, but that lacks enforcement and the usability is awkward This update expands the sysfs interface and the core infrastructure to accept numerical values so PowerPC can build SMT runtime control for partial SMT enablement on top The core support has also been provided to the PowerPC maintainers who added the PowerPC related changes on top - Minor cleanups and documentation updates" * tag 'smp-core-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Documentation: core-api/cpuhotplug: Fix state names cpu/hotplug: Remove unused function declaration cpu_set_state_online() cpu/SMT: Fix cpu_smt_possible() comment cpu/SMT: Allow enabling partial SMT states via sysfs cpu/SMT: Create topology_smt_thread_allowed() cpu/SMT: Remove topology_smt_supported() cpu/SMT: Store the current/max number of threads cpu/SMT: Move smt/control simple exit cases earlier cpu/SMT: Move SMT prototypes into cpu_smt.h cpu/hotplug: Remove dependancy against cpu_primary_thread_mask
2023-08-28Merge tag 'core-entry-2023-08-28' of ↵Linus Torvalds1-16/+0
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull core entry code update from Thomas Gleixner: "A single update to the core entry code, which removes the empty user address limit check which is a leftover of the removed TIF_FSCHECK" * tag 'core-entry-2023-08-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: entry: Remove empty addr_limit_user_check()
2023-08-28Merge tag 'rcu.2023.08.21a' of ↵Linus Torvalds6-15/+17
git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu Pull RCU updates from Paul McKenney: - Documentation updates - Miscellaneous fixes, perhaps most notably simplifying SRCU_NOTIFIER_INIT() as suggested - RCU Tasks updates, most notably treating Tasks RCU callbacks as lazy while still treating synchronous grace periods as urgent. Also fixes one bug that restores the ability to apply debug-objects to RCU Tasks and another that fixes a race condition that could result in false-positive failures of the boot-time self-test code - RCU-scalability performance-test updates, most notably adding the ability to measure the RCU-Tasks's grace-period kthread's CPU consumption. This proved quite useful for the RCU Tasks work - Reference-acquisition/release performance-test updates, including a fix for an uninitialized wait_queue_head_t - Miscellaneous torture-test updates - Torture-test scripting updates, including removal of the non-longer-functional formal-verification scripts, test builds of individual RCU Tasks flavors, better diagnostics for loss of connectivity for distributed rcutorture tests, disabling of reboot loops in qemu/KVM-based rcutorture testing, and passing of init parameters to rcutorture's init program * tag 'rcu.2023.08.21a' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu: (64 commits) rcu: Use WRITE_ONCE() for assignments to ->next for rculist_nulls rcu: Make the rcu_nocb_poll boot parameter usable via boot config rcu: Mark __rcu_irq_enter_check_tick() ->rcu_urgent_qs load srcu,notifier: Remove #ifdefs in favor of SRCU Tiny srcu_usage rcutorture: Stop right-shifting torture_random() return values torture: Stop right-shifting torture_random() return values torture: Move stutter_wait() timeouts to hrtimers torture: Move torture_shuffle() timeouts to hrtimers torture: Move torture_onoff() timeouts to hrtimers torture: Make torture_hrtimeout_*() use TASK_IDLE torture: Add lock_torture writer_fifo module parameter torture: Add a kthread-creation callback to _torture_create_kthread() rcu-tasks: Fix boot-time RCU tasks debug-only deadlock rcu-tasks: Permit use of debug-objects with RCU Tasks flavors checkpatch: Complain about unexpected uses of RCU Tasks Trace torture: Cause mkinitrd.sh to indicate failure on compile errors torture: Make init program dump command-line arguments torture: Switch qemu from -nographic to -display none torture: Add init-program support for loongarch torture: Avoid torture-test reboot loops ...
2023-08-28Merge tag 'hardening-v6.6-rc1' of ↵Linus Torvalds6-25/+134
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardening updates from Kees Cook: "As has become normal, changes are scattered around the tree (either explicitly maintainer Acked or for trivial stuff that went ignored): - Carve out the new CONFIG_LIST_HARDENED as a more focused subset of CONFIG_DEBUG_LIST (Marco Elver) - Fix kallsyms lookup failure under Clang LTO (Yonghong Song) - Clarify documentation for CONFIG_UBSAN_TRAP (Jann Horn) - Flexible array member conversion not carried in other tree (Gustavo A. R. Silva) - Various strlcpy() and strncpy() removals not carried in other trees (Azeem Shaikh, Justin Stitt) - Convert nsproxy.count to refcount_t (Elena Reshetova) - Add handful of __counted_by annotations not carried in other trees, as well as an LKDTM test - Fix build failure with gcc-plugins on GCC 14+ - Fix selftests to respect SKIP for signal-delivery tests - Fix CFI warning for paravirt callback prototype - Clarify documentation for seq_show_option_n() usage" * tag 'hardening-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (23 commits) LoadPin: Annotate struct dm_verity_loadpin_trusted_root_digest with __counted_by kallsyms: Change func signature for cleanup_symbol_name() kallsyms: Fix kallsyms_selftest failure nsproxy: Convert nsproxy.count to refcount_t integrity: Annotate struct ima_rule_opt_list with __counted_by lkdtm: Add FAM_BOUNDS test for __counted_by Compiler Attributes: counted_by: Adjust name and identifier expansion um: refactor deprecated strncpy to memcpy um: vector: refactor deprecated strncpy alpha: Replace one-element array with flexible-array member hardening: Move BUG_ON_DATA_CORRUPTION to hardening options list: Introduce CONFIG_LIST_HARDENED list_debug: Introduce inline wrappers for debug checks compiler_types: Introduce the Clang __preserve_most function attribute gcc-plugins: Rename last_stmt() for GCC 14+ selftests/harness: Actually report SKIP for signal tests x86/paravirt: Fix tlb_remove_table function callback prototype warning EISA: Replace all non-returning strlcpy with strscpy perf: Replace strlcpy with strscpy um: Remove strlcpy declaration ...
2023-08-28net: stmmac: clarify difference between "interface" and "phy_interface"Russell King (Oracle)1-1/+14
Clarify the difference between "interface" and "phy_interface" in struct plat_stmmacenet_data, both by adding a comment, and also renaming "interface" to be "mac_interface". The difference between these are: MAC ----- optional PCS ----- SerDes ----- optional PHY ----- Media ^ ^ mac_interface phy_interface Note that phylink currently only deals with phy_interface. Signed-off-by: Russell King (Oracle) <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2023-08-28r8152: add vendor/device ID pair for D-Link DUB-E250Antonio Napolitano1-0/+1
The D-Link DUB-E250 is an RTL8156 based 2.5G Ethernet controller. Add the vendor and product ID values to the driver. This makes Ethernet work with the adapter. Signed-off-by: Antonio Napolitano <[email protected]> Link: https://lore.kernel.org/r/CV200KJEEUPC.WPKAHXCQJ05I@mercurius Signed-off-by: Jakub Kicinski <[email protected]>
2023-08-28Merge tag 'seccomp-v6.6-rc1' of ↵Linus Torvalds3-1/+5
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull seccomp updates from Kees Cook: - Provide USER_NOTIFY flag for synchronous mode (Andrei Vagin, Peter Oskolkov). This touches the scheduler and perf but has been Acked by Peter Zijlstra. - Fix regression in syscall skipping and restart tracing on arm32. This touches arch/arm/ but has been Acked by Arnd Bergmann. * tag 'seccomp-v6.6-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: seccomp: Add missing kerndoc notations ARM: ptrace: Restore syscall skipping for tracers ARM: ptrace: Restore syscall restart tracing selftests/seccomp: Handle arm32 corner cases better perf/benchmark: add a new benchmark for seccom_unotify selftest/seccomp: add a new test for the sync mode of seccomp_user_notify seccomp: add the synchronous mode for seccomp_unotify sched: add a few helpers to wake up tasks on the current cpu sched: add WF_CURRENT_CPU and externise ttwu seccomp: don't use semaphore and wait_queue together
2023-08-28Merge tag 'for-6.6-tag' of ↵Linus Torvalds1-5/+0
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs updates from David Sterba: "No new features, the bulk of the changes are fixes, refactoring and cleanups. The notable fix is the scrub performance restoration after rewrite in 6.4, though still only partial. Fixes: - scrub performance drop due to rewrite in 6.4 partially restored: - do IO grouping by blg_plug/blk_unplug again - avoid unnecessary tree searches when processing stripes, in extent and checksum trees - the drop is noticeable on fast PCIe devices, -66% and restored to -33% of the original - backports to 6.4 planned - handle more corner cases of transaction commit during orphan cleanup or delayed ref processing - use correct fsid/metadata_uuid when validating super block - copy directory permissions and time when creating a stub subvolume Core: - debugging feature integrity checker deprecated, to be removed in 6.7 - in zoned mode, zones are activated just before the write, making error handling easier, now the overcommit mechanism can be enabled again which improves performance by avoiding more frequent flushing - v0 extent handling completely removed, deprecated long time ago - error handling improvements - tests: - extent buffer bitmap tests - pinned extent splitting tests - cleanups and refactoring: - compression writeback - extent buffer bitmap - space flushing, ENOSPC handling" * tag 'for-6.6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (110 commits) btrfs: zoned: skip splitting and logical rewriting on pre-alloc write btrfs: tests: test invalid splitting when skipping pinned drop extent_map btrfs: tests: add a test for btrfs_add_extent_mapping btrfs: tests: add extent_map tests for dropping with odd layouts btrfs: scrub: move write back of repaired sectors to scrub_stripe_read_repair_worker() btrfs: scrub: don't go ordered workqueue for dev-replace btrfs: scrub: fix grouping of read IO btrfs: scrub: avoid unnecessary csum tree search preparing stripes btrfs: scrub: avoid unnecessary extent tree search preparing stripes btrfs: copy dir permission and time when creating a stub subvolume btrfs: remove pointless empty list check when reading delayed dir indexes btrfs: drop redundant check to use fs_devices::metadata_uuid btrfs: compare the correct fsid/metadata_uuid in btrfs_validate_super btrfs: use the correct superblock to compare fsid in btrfs_validate_super btrfs: simplify memcpy either of metadata_uuid or fsid btrfs: add a helper to read the superblock metadata_uuid btrfs: remove v0 extent handling btrfs: output extra debug info if we failed to find an inline backref btrfs: move the !zoned assert into run_delalloc_cow btrfs: consolidate the error handling in run_delalloc_nocow ...
2023-08-28Merge tag 'iomap-6.6-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds4-15/+114
Pull iomap updates from Darrick Wong: "We've got some big changes for this release -- I'm very happy to be landing willy's work to enable large folios for the page cache for general read and write IOs when the fs can make contiguous space allocations, and Ritesh's work to track sub-folio dirty state to eliminate the write amplification problems inherent in using large folios. As a bonus, io_uring can now process write completions in the caller's context instead of bouncing through a workqueue, which should reduce io latency dramatically. IOWs, XFS should see a nice performance bump for both IO paths. Summary: - Make large writes to the page cache fill sparse parts of the cache with large folios, then use large memcpy calls for the large folio. - Track the per-block dirty state of each large folio so that a buffered write to a single byte on a large folio does not result in a (potentially) multi-megabyte writeback IO. - Allow some directio completions to be performed in the initiating task's context instead of punting through a workqueue. This will reduce latency for some io_uring requests" * tag 'iomap-6.6-merge-3' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (26 commits) iomap: support IOCB_DIO_CALLER_COMP io_uring/rw: add write support for IOCB_DIO_CALLER_COMP fs: add IOCB flags related to passing back dio completions iomap: add IOMAP_DIO_INLINE_COMP iomap: only set iocb->private for polled bio iomap: treat a write through cache the same as FUA iomap: use an unsigned type for IOMAP_DIO_* defines iomap: cleanup up iomap_dio_bio_end_io() iomap: Add per-block dirty state tracking to improve performance iomap: Allocate ifs in ->write_begin() early iomap: Refactor iomap_write_delalloc_punch() function out iomap: Use iomap_punch_t typedef iomap: Fix possible overflow condition in iomap_write_delalloc_scan iomap: Add some uptodate state handling helpers for ifs state bitmap iomap: Drop ifs argument from iomap_set_range_uptodate() iomap: Rename iomap_page to iomap_folio_state and others iomap: Copy larger chunks from userspace iomap: Create large folios in the buffered write path filemap: Allow __filemap_get_folio to allocate large folios filemap: Add fgf_t typedef ...
2023-08-28Merge tag 'v6.6-vfs.fchmodat2' of ↵Linus Torvalds1-1/+3
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull fchmodat2 system call from Christian Brauner: "This adds the fchmodat2() system call. It is a revised version of the fchmodat() system call, adding a missing flag argument. Support for both AT_SYMLINK_NOFOLLOW and AT_EMPTY_PATH are included. Adding this system call revision has been a longstanding request but so far has always fallen through the cracks. While the kernel implementation of fchmodat() does not have a flag argument the libc provided POSIX-compliant fchmodat(3) version does. Both glibc and musl have to implement a workaround in order to support AT_SYMLINK_NOFOLLOW (see [1] and [2]). The workaround is brittle because it relies not just on O_PATH and O_NOFOLLOW semantics and procfs magic links but also on our rather inconsistent symlink semantics. This gives userspace a proper fchmodat2() system call that libcs can use to properly implement fchmodat(3) and allows them to get rid of their hacks. In this case it will immediately benefit them as the current workaround is already defunct because of aformentioned inconsistencies. In addition to AT_SYMLINK_NOFOLLOW, give userspace the ability to use AT_EMPTY_PATH with fchmodat2(). This is already possible with fchownat() so there's no reason to not also support it for fchmodat2(). The implementation is simple and comes with selftests. Implementation of the system call and wiring up the system call are done as separate patches even though they could arguably be one patch. But in case there are merge conflicts from other system call additions it can be beneficial to have separate patches" Link: https://sourceware.org/git/?p=glibc.git;a=blob;f=sysdeps/unix/sysv/linux/fchmodat.c;h=17eca54051ee28ba1ec3f9aed170a62630959143;hb=a492b1e5ef7ab50c6fdd4e4e9879ea5569ab0a6c#l35 [1] Link: https://git.musl-libc.org/cgit/musl/tree/src/stat/fchmodat.c?id=718f363bc2067b6487900eddc9180c84e7739f80#n28 [2] * tag 'v6.6-vfs.fchmodat2' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: selftests: fchmodat2: remove duplicate unneeded defines fchmodat2: add support for AT_EMPTY_PATH selftests: Add fchmodat2 selftest arch: Register fchmodat2, usually as syscall 452 fs: Add fchmodat2() Non-functional cleanup of a "__user * filename"
2023-08-28Merge tag 'v6.6-vfs.super' of ↵Linus Torvalds4-12/+24
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull superblock updates from Christian Brauner: "This contains the super rework that was ready for this cycle. The first part changes the order of how we open block devices and allocate superblocks, contains various cleanups, simplifications, and a new mechanism to wait on superblock state changes. This unblocks work to ultimately limit the number of writers to a block device. Jan has already scheduled follow-up work that will be ready for v6.7 and allows us to restrict the number of writers to a given block device. That series builds on this work right here. The second part contains filesystem freezing updates. Overview: The generic superblock changes are rougly organized as follows (ignoring additional minor cleanups): (1) Removal of the bd_super member from struct block_device. This was a very odd back pointer to struct super_block with unclear rules. For all relevant places we have other means to get the same information so just get rid of this. (2) Simplify rules for superblock cleanup. Roughly, everything that is allocated during fs_context initialization and that's stored in fs_context->s_fs_info needs to be cleaned up by the fs_context->free() implementation before the superblock allocation function has been called successfully. After sget_fc() returned fs_context->s_fs_info has been transferred to sb->s_fs_info at which point sb->kill_sb() if fully responsible for cleanup. Adhering to these rules means that cleanup of sb->s_fs_info in fill_super() is to be avoided as it's brittle and inconsistent. Cleanup shouldn't be duplicated between sb->put_super() as sb->put_super() is only called if sb->s_root has been set aka when the filesystem has been successfully born (SB_BORN). That complexity should be avoided. This also means that block devices are to be closed in sb->kill_sb() instead of sb->put_super(). More details in the lower section. (3) Make it possible to lookup or create a superblock before opening block devices There's a subtle dependency on (2) as some filesystems did rely on fill_super() to be called in order to correctly clean up sb->s_fs_info. All these filesystems have been fixed. (4) Switch most filesystem to follow the same logic as the generic mount code now does as outlined in (3). (5) Use the superblock as the holder of the block device. We can now easily go back from block device to owning superblock. (6) Export and extend the generic fs_holder_ops and use them as holder ops everywhere and remove the filesystem specific holder ops. (7) Call from the block layer up into the filesystem layer when the block device is removed, allowing to shut down the filesystem without risk of deadlocks. (8) Get rid of get_super(). We can now easily go back from the block device to owning superblock and can call up from the block layer into the filesystem layer when the device is removed. So no need to wade through all registered superblock to find the owning superblock anymore" Link: https://lore.kernel.org/lkml/20230824-prall-intakt-95dbffdee4a0@brauner/ * tag 'v6.6-vfs.super' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (47 commits) super: use higher-level helper for {freeze,thaw} super: wait until we passed kill super super: wait for nascent superblocks super: make locking naming consistent super: use locking helpers fs: simplify invalidate_inodes fs: remove get_super block: call into the file system for ioctl BLKFLSBUF block: call into the file system for bdev_mark_dead block: consolidate __invalidate_device and fsync_bdev block: drop the "busy inodes on changed media" log message dasd: also call __invalidate_device when setting the device offline amiflop: don't call fsync_bdev in FDFMTBEG floppy: call disk_force_media_change when changing the format block: simplify the disk_force_media_change interface nbd: call blk_mark_disk_dead in nbd_clear_sock_ioctl xfs use fs_holder_ops for the log and RT devices xfs: drop s_umount over opening the log and RT devices ext4: use fs_holder_ops for the log device ext4: drop s_umount over opening the log device ...
2023-08-28Merge tag 'v6.6-vfs.misc' of ↵Linus Torvalds6-16/+71
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull misc vfs updates from Christian Brauner: "This contains the usual miscellaneous features, cleanups, and fixes for vfs and individual filesystems. Features: - Block mode changes on symlinks and rectify our broken semantics - Report file modifications via fsnotify() for splice - Allow specifying an explicit timeout for the "rootwait" kernel command line option. This allows to timeout and reboot instead of always waiting indefinitely for the root device to show up - Use synchronous fput for the close system call Cleanups: - Get rid of open-coded lockdep workarounds for async io submitters and replace it all with a single consolidated helper - Simplify epoll allocation helper - Convert simple_write_begin and simple_write_end to use a folio - Convert page_cache_pipe_buf_confirm() to use a folio - Simplify __range_close to avoid pointless locking - Disable per-cpu buffer head cache for isolated cpus - Port ecryptfs to kmap_local_page() api - Remove redundant initialization of pointer buf in pipe code - Unexport the d_genocide() function which is only used within core vfs - Replace printk(KERN_ERR) and WARN_ON() with WARN() Fixes: - Fix various kernel-doc issues - Fix refcount underflow for eventfds when used as EFD_SEMAPHORE - Fix a mainly theoretical issue in devpts - Check the return value of __getblk() in reiserfs - Fix a racy assert in i_readcount_dec - Fix integer conversion issues in various functions - Fix LSM security context handling during automounts that prevented NFS superblock sharing" * tag 'v6.6-vfs.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (39 commits) cachefiles: use kiocb_{start,end}_write() helpers ovl: use kiocb_{start,end}_write() helpers aio: use kiocb_{start,end}_write() helpers io_uring: use kiocb_{start,end}_write() helpers fs: create kiocb_{start,end}_write() helpers fs: add kerneldoc to file_{start,end}_write() helpers io_uring: rename kiocb_end_write() local helper splice: Convert page_cache_pipe_buf_confirm() to use a folio libfs: Convert simple_write_begin and simple_write_end to use a folio fs/dcache: Replace printk and WARN_ON by WARN fs/pipe: remove redundant initialization of pointer buf fs: Fix kernel-doc warnings devpts: Fix kernel-doc warnings doc: idmappings: fix an error and rephrase a paragraph init: Add support for rootwait timeout parameter vfs: fix up the assert in i_readcount_dec fs: Fix one kernel-doc comment docs: filesystems: idmappings: clarify from where idmappings are taken fs/buffer.c: disable per-CPU buffer_head cache for isolated CPUs vfs, security: Fix automount superblock LSM init problem, preventing NFS sb sharing ...
2023-08-28Merge tag 'v6.6-vfs.tmpfs' of ↵Linus Torvalds3-5/+54
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull libfs and tmpfs updates from Christian Brauner: "This cycle saw a lot of work for tmpfs that required changes to the vfs layer. Andrew, Hugh, and I decided to take tmpfs through vfs this cycle. Things will go back to mm next cycle. Features ======== - By far the biggest work is the quota support for tmpfs. New tmpfs quota infrastructure is added to support it and a new QFMT_SHMEM uapi option is exposed. This offers user and group quotas to tmpfs (project quotas will be added later). Similar to other filesystems tmpfs quota are not supported within user namespaces yet. - Add support for user xattrs. While tmpfs already supports security xattrs (security.*) and POSIX ACLs for a long time it lacked support for user xattrs (user.*). With this pull request tmpfs will be able to support a limited number of user xattrs. This is accompanied by a fix (see below) to limit persistent simple xattr allocations. - Add support for stable directory offsets. Currently tmpfs relies on the libfs provided cursor-based mechanism for readdir. This causes issues when a tmpfs filesystem is exported via NFS. NFS clients do not open directories. Instead, each server-side readdir operation opens the directory, reads it, and then closes it. Since the cursor state for that directory is associated with the opened file it is discarded after each readdir operation. Such directory offsets are not just cached by NFS clients but also various userspace libraries based on these clients. As it stands there is no way to invalidate the caches when directory offsets have changed and the whole application depends on unchanging directory offsets. At LSFMM we discussed how to solve this problem and decided to support stable directory offsets. libfs now allows filesystems like tmpfs to use an xarrary to map a directory offset to a dentry. This mechanism is currently only used by tmpfs but can be supported by others as well. Fixes ===== - Change persistent simple xattrs allocations in libfs from GFP_KERNEL to GPF_KERNEL_ACCOUNT so they're subject to memory cgroup limits. Since this is a change to libfs it affects both tmpfs and kernfs. - Correctly verify {g,u}id mount options. A new filesystem context is created via fsopen() which records the namespace that becomes the owning namespace of the superblock when fsconfig(FSCONFIG_CMD_CREATE) is called for filesystems that are mountable in namespaces. However, fsconfig() calls can occur in a namespace different from the namespace where fsopen() has been called. Currently, when fsconfig() is called to set {g,u}id mount options the requested {g,u}id is mapped into a k{g,u}id according to the namespace where fsconfig() was called from. The resulting k{g,u}id is not guaranteed to be resolvable in the namespace of the filesystem (the one that fsopen() was called in). This means it's possible for an unprivileged user to create files owned by any group in a tmpfs mount since it's possible to set the setid bits on the tmpfs directory. The contract for {g,u}id mount options and {g,u}id values in general set from userspace has always been that they are translated according to the caller's idmapping. In so far, tmpfs has been doing the correct thing. But since tmpfs is mountable in unprivileged contexts it is also necessary to verify that the resulting {k,g}uid is representable in the namespace of the superblock to avoid such bugs. The new mount api's cross-namespace delegation abilities are already widely used. Having talked to a bunch of userspace this is the most faithful solution with minimal regression risks" * tag 'v6.6-vfs.tmpfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: tmpfs,xattr: GFP_KERNEL_ACCOUNT for simple xattrs mm: invalidation check mapping before folio_contains tmpfs: trivial support for direct IO tmpfs,xattr: enable limited user extended attributes tmpfs: track free_ispace instead of free_inodes xattr: simple_xattr_set() return old_xattr to be freed tmpfs: verify {g,u}id mount options correctly shmem: move spinlock into shmem_recalc_inode() to fix quota support libfs: Remove parent dentry locking in offset_iterate_dir() libfs: Add a lock class for the offset map's xa_lock shmem: stable directory offsets shmem: Refactor shmem_symlink() libfs: Add directory operations for stable offsets shmem: fix quota lock nesting in huge hole handling shmem: Add default quota limit mount options shmem: quota support shmem: prepare shmem quota infrastructure quota: Check presence of quota operation structures instead of ->quota_read and ->quota_write callbacks shmem: make shmem_get_inode() return ERR_PTR instead of NULL shmem: make shmem_inode_acct_block() return error
2023-08-28Merge tag 'v6.6-vfs.ctime' of ↵Linus Torvalds2-7/+95
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull vfs timestamp updates from Christian Brauner: "This adds VFS support for multi-grain timestamps and converts tmpfs, xfs, ext4, and btrfs to use them. This carries acks from all relevant filesystems. The VFS always uses coarse-grained timestamps when updating the ctime and mtime after a change. This has the benefit of allowing filesystems to optimize away a lot of metadata updates, down to around 1 per jiffy, even when a file is under heavy writes. Unfortunately, this has always been an issue when we're exporting via NFSv3, which relies on timestamps to validate caches. A lot of changes can happen in a jiffy, so timestamps aren't sufficient to help the client decide to invalidate the cache. Even with NFSv4, a lot of exported filesystems don't properly support a change attribute and are subject to the same problems with timestamp granularity. Other applications have similar issues with timestamps (e.g., backup applications). If we were to always use fine-grained timestamps, that would improve the situation, but that becomes rather expensive, as the underlying filesystem would have to log a lot more metadata updates. This introduces fine-grained timestamps that are used when they are actively queried. This uses the 31st bit of the ctime tv_nsec field to indicate that something has queried the inode for the mtime or ctime. When this flag is set, on the next mtime or ctime update, the kernel will fetch a fine-grained timestamp instead of the usual coarse-grained one. As POSIX generally mandates that when the mtime changes, the ctime must also change the kernel always stores normalized ctime values, so only the first 30 bits of the tv_nsec field are ever used. Filesytems can opt into this behavior by setting the FS_MGTIME flag in the fstype. Filesystems that don't set this flag will continue to use coarse-grained timestamps. Various preparatory changes, fixes and cleanups are included: - Fixup all relevant places where POSIX requires updating ctime together with mtime. This is a wide-range of places and all maintainers provided necessary Acks. - Add new accessors for inode->i_ctime directly and change all callers to rely on them. Plain accesses to inode->i_ctime are now gone and it is accordingly rename to inode->__i_ctime and commented as requiring accessors. - Extend generic_fillattr() to pass in a request mask mirroring in a sense the statx() uapi. This allows callers to pass in a request mask to only get a subset of attributes filled in. - Rework timestamp updates so it's possible to drop the @now parameter the update_time() inode operation and associated helpers. - Add inode_update_timestamps() and convert all filesystems to it removing a bunch of open-coding" * tag 'v6.6-vfs.ctime' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (107 commits) btrfs: convert to multigrain timestamps ext4: switch to multigrain timestamps xfs: switch to multigrain timestamps tmpfs: add support for multigrain timestamps fs: add infrastructure for multigrain timestamps fs: drop the timespec64 argument from update_time xfs: have xfs_vn_update_time gets its own timestamp fat: make fat_update_time get its own timestamp fat: remove i_version handling from fat_update_time ubifs: have ubifs_update_time use inode_update_timestamps btrfs: have it use inode_update_timestamps fs: drop the timespec64 arg from generic_update_time fs: pass the request_mask to generic_fillattr fs: remove silly warning from current_time gfs2: fix timestamp handling on quota inodes fs: rename i_ctime field to __i_ctime selinux: convert to ctime accessor functions security: convert to ctime accessor functions apparmor: convert to ctime accessor functions sunrpc: convert to ctime accessor functions ...
2023-08-28Merge tag 'v6.6-vfs.fs_context' of ↵Linus Torvalds1-3/+1
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull mount API updates from Christian Brauner: "This introduces FSCONFIG_CMD_CREATE_EXCL which allows userspace to implement something like $ mount -t ext4 --exclusive /dev/sda /B which fails if a superblock for the requested filesystem does already exist instead of silently reusing an existing superblock. Without it, in the sequence $ move-mount -f xfs -o source=/dev/sda4 /A $ move-mount -f xfs -o noacl,source=/dev/sda4 /B the initial mounter will create a superblock. The second mounter will reuse the existing superblock, creating a bind-mount (see [1] for the source of the move-mount binary). The problem is that reusing an existing superblock means all mount options other than read-only and read-write will be silently ignored even if they are incompatible requests. For example, the second mount has requested no POSIX ACL support but since the existing superblock is reused POSIX ACL support will remain enabled. Such silent superblock reuse can easily become a security issue. After adding support for FSCONFIG_CMD_CREATE_EXCL to mount(8) in util-linux this can be fixed: $ move-mount -f xfs --exclusive -o source=/dev/sda4 /A $ move-mount -f xfs --exclusive -o noacl,source=/dev/sda4 /B Device or resource busy | move-mount.c: 300: do_fsconfig: i xfs: reusing existing filesystem not allowed This requires the new mount api. With the old mount api it would be necessary to plumb this through every legacy filesystem's file_system_type->mount() method. If they want this feature they are most welcome to switch to the new mount api" Link: https://github.com/brauner/move-mount-beneath [1] Link: https://lore.kernel.org/linux-block/20230704-fasching-wertarbeit-7c6ffb01c83d@brauner Link: https://lore.kernel.org/linux-block/20230705-pumpwerk-vielversprechend-a4b1fd947b65@brauner Link: https://lore.kernel.org/linux-fsdevel/20230725-einnahmen-warnschilder-17779aec0a97@brauner Link: https://lore.kernel.org/lkml/20230824-anzog-allheilmittel-e8c63e429a79@brauner/ * tag 'v6.6-vfs.fs_context' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: fs: add FSCONFIG_CMD_CREATE_EXCL fs: add vfs_cmd_reconfigure() fs: add vfs_cmd_create() super: remove get_tree_single_reconf()
2023-08-28Merge tag 'nand/for-6.6' into mtd/nextMiquel Raynal1-0/+1
Raw NAND core changes: * Fix -Wvoid-pointer-to-enum-cast warning * Export 'nand_exit_status_op()' * dt-bindings: Fix nand-controller.yaml license Raw NAND controller driver changes: * Omap, Omap2, Samsung, Atmel, fsl_upm, lpc32xx_slc, lpc32xx_mlc, STM32_FMC2, sh_ftlctl, MXC, Sunxi: - Use devm_platform_get_and_ioremap_resource() * Orion, vf610_nfc, Sunxi, STM32_FMC2, MTK, mpc5121, lpc32xx_slc, Intel, FSMC, Arasan: - Use helper function devm_clk_get_optional_enabled() * Brcmnand: - Use devm_platform_ioremap_resource_byname() - Propagate init error -EPROBE_DEFER up - Propagate error and simplify ternary operators - Fix mtd oobsize - Fix potential out-of-bounds access in oob write - Fix crash during the panic_write - Fix potential false time out warning - Fix ECC level field setting for v7.2 controller * fsmc: Handle clk prepare error in fsmc_nand_resume() * Marvell: Add support for AC5 SoC * Meson: - Support for 512B ECC step size - Fix build error - Use NAND core API to check status - dt-bindings: * Make ECC properties dependent * Support for 512B ECC step size * Drop unneeded quotes * Oxnas: Remove driver and bindings * Qcom: - Conversion to ->exec_op() - Removal of the legacy interface - Two full series of improvements/misc fixes * Use the BIT() macro * Use u8 instead of uint8_t * Fix alignment with open parenthesis * Fix the spacing * Fix wrong indentation * Fix a typo * Early structure initialization * Fix address parsing within ->exec_op() * Remove superfluous initialization of "ret" * Rename variables in qcom_op_cmd_mapping() * Handle unsupported opcode in qcom_op_cmd_mapping() * Fix the opcode check in qcom_check_op() * Use EOPNOTSUPP instead of ENOTSUPP * Wrap qcom_nand_exec_op() to 80 columns * Unmap sg_list and free desc within submic_descs() * Simplify the call to nand_prog_page_end_op() * Do not override the error no of submit_descs() * Sort includes alphabetically * Clear buf_count and buf_start in raw read * Add read/read_start ops in exec_op path * vf610_nfc: Do not check 0 for platform_get_irq() SPI-NAND changes: * gigadevice: Add support for GD5F1GQ{4,5}RExxH * esmt: Add support for F50D2G41KA * toshiba: Add support for T{C,H}58NYG{0,2}S3HBAI4 and TH58NYG3S0HBAI6 Signed-off-by: Miquel Raynal <[email protected]>
2023-08-28Merge tag 'opp-updates-6.6' of ↵Rafael J. Wysocki1-13/+49
git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Pull OPP updates for 6.6 from Viresh Kumar: "- Minor core cleanup and addition of new frequency related APIs (Viresh Kumar and Manivannan Sadhasivam). - Convert ti cpufreq/opp bindings to json schema (Nishanth Menon)." * tag 'opp-updates-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: dt-bindings: cpufreq: Convert ti-cpufreq to json schema dt-bindings: opp: Convert ti-omap5-opp-supply to json schema OPP: Fix argument name in doc comment dt-bindings: opp: Increase maxItems for opp-hz property OPP: Fix passing 0 to PTR_ERR in _opp_attach_genpd() OPP: Fix potential null ptr dereference in dev_pm_opp_get_required_pstate() OPP: Reuse dev_pm_opp_get_freq_indexed() OPP: Update _read_freq() to return the correct frequency OPP: Add dev_pm_opp_find_freq_exact_indexed() OPP: Introduce dev_pm_opp_get_freq_indexed() API OPP: Introduce dev_pm_opp_find_freq_{ceil/floor}_indexed() APIs OPP: Rearrange entries in pm_opp.h
2023-08-28Merge branch 'pm-cpufreq'Rafael J. Wysocki1-1/+1
Merge ARM cpufreq updates for 6.6: - Migrate various platforms to use remove callback returning void (Yangtao Li). - Add online/offline/exit hooks for Tegra driver (Sumit Gupta). - Explicitly include correct DT includes (Rob Herring). - Frequency domain updates for qcom-hw driver (Neil Armstrong). - Modify AMD pstate driver return the highest_perf value (Meng Li). - Generic cleanups for cppc, mediatek and powernow driver (Liao Chang, Konrad Dybcio). - Add more platforms to cpufreq-arm driver's blocklist (AngeloGioacchino Del Regno, Konrad Dybcio). - brcmstb-avs-cpufreq: Fix -Warray-bounds bug (Gustavo A. R. Silva). * pm-cpufreq: (33 commits) cpufreq: tegra194: remove opp table in exit hook cpufreq: powernow-k8: Use related_cpus instead of cpus in driver.exit() cpufreq: tegra194: add online/offline hooks cpufreq: qcom-cpufreq-hw: add support for 4 freq domains dt-bindings: cpufreq: qcom-hw: add a 4th frequency domain cpufreq: cppc: Set fie_disabled to FIE_DISABLED if fails to create kworker_fie cpufreq: cppc: cppc_cpufreq_get_rate() returns zero in all error cases. cpufreq: Prefer to print cpuid in MIN/MAX QoS register error message cpufreq: amd-pstate-ut: Modify the function to get the highest_perf value cpufreq: mediatek-hw: Remove unused define cpufreq: blocklist more Qualcomm platforms in cpufreq-dt-platdev cpufreq: brcmstb-avs-cpufreq: Fix -Warray-bounds bug cpufreq: blocklist MSM8998 in cpufreq-dt-platdev cpufreq: omap: Convert to platform remove callback returning void cpufreq: qoriq: Convert to platform remove callback returning void cpufreq: acpi: Convert to platform remove callback returning void cpufreq: tegra186: Convert to platform remove callback returning void cpufreq: qcom-nvmem: Convert to platform remove callback returning void cpufreq: kirkwood: Convert to platform remove callback returning void cpufreq: pcc-cpufreq: Convert to platform remove callback returning void ...
2023-08-28Merge tag 'cpufreq-arm-updates-6.6' of ↵Rafael J. Wysocki1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm Pull ARM cpufreq updates for 6.6 from Viresh Kumar: "- Migrate various platforms to use remove callback returning void (Yangtao Li). - Add online/offline/exit hooks for Tegra driver (Sumit Gupta). - Explicitly include correct DT includes (Rob Herring). - Frequency domain updates for qcom-hw driver (Neil Armstrong). - Modify AMD pstate driver return the highest_perf value (Meng Li). - Generic cleanups for cppc, mediatek and powernow driver (Liao Chang and Konrad Dybcio). - Add more platforms to cpufreq-arm driver's blocklist (AngeloGioacchino Del Regno and Konrad Dybcio). - brcmstb-avs-cpufreq: Fix -Warray-bounds bug (Gustavo A. R. Silva)." * tag 'cpufreq-arm-updates-6.6' of git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/pm: (33 commits) cpufreq: tegra194: remove opp table in exit hook cpufreq: powernow-k8: Use related_cpus instead of cpus in driver.exit() cpufreq: tegra194: add online/offline hooks cpufreq: qcom-cpufreq-hw: add support for 4 freq domains dt-bindings: cpufreq: qcom-hw: add a 4th frequency domain cpufreq: cppc: Set fie_disabled to FIE_DISABLED if fails to create kworker_fie cpufreq: cppc: cppc_cpufreq_get_rate() returns zero in all error cases. cpufreq: Prefer to print cpuid in MIN/MAX QoS register error message cpufreq: amd-pstate-ut: Modify the function to get the highest_perf value cpufreq: mediatek-hw: Remove unused define cpufreq: blocklist more Qualcomm platforms in cpufreq-dt-platdev cpufreq: brcmstb-avs-cpufreq: Fix -Warray-bounds bug cpufreq: blocklist MSM8998 in cpufreq-dt-platdev cpufreq: omap: Convert to platform remove callback returning void cpufreq: qoriq: Convert to platform remove callback returning void cpufreq: acpi: Convert to platform remove callback returning void cpufreq: tegra186: Convert to platform remove callback returning void cpufreq: qcom-nvmem: Convert to platform remove callback returning void cpufreq: kirkwood: Convert to platform remove callback returning void cpufreq: pcc-cpufreq: Convert to platform remove callback returning void ...
2023-08-27net/mlx5: Provide an interface to block change of IPsec capabilitiesLeon Romanovsky1-0/+1
mlx5 HW can't perform IPsec offload operation simultaneously both on PF and VFs at the same time. While the previous patches added devlink knobs to change IPsec capabilities dynamically, there is a need to add a logic to block such IPsec capabilities for the cases when IPsec is already configured. Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2023-08-27net/mlx5: Add IFC bits to support IPsec enable/disableLeon Romanovsky1-0/+3
Add hardware definitions to allow to control IPSec capabilities. Signed-off-by: Leon Romanovsky <[email protected]> Signed-off-by: Saeed Mahameed <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2023-08-27rtc: Add support for limited alarm timer offsetsGuenter Roeck1-0/+1
Some alarm timers are based on time offsets, not on absolute times. In some situations, the amount of time that can be scheduled in the future is limited. This may result in a refusal to suspend the system, causing substantial battery drain. Some RTC alarm drivers remedy the situation by setting the alarm time to the maximum supported time if a request for an out-of-range timeout is made. This is not really desirable since it may result in unexpected early wakeups. To reduce the impact of this problem, let RTC drivers report the maximum supported alarm timer offset. The code setting alarm timers can then decide if it wants to reject setting alarm timers to a larger value, if it wants to implement recurring alarms until the actually requested alarm time is met, or if it wants to accept the limited alarm time. Only introduce the necessary variable into struct rtc_device. Code to set and use the variable will follow with subsequent patches. Cc: Brian Norris <[email protected]> Signed-off-by: Guenter Roeck <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexandre Belloni <[email protected]>
2023-08-27Merge tag 'scsi-fixes' of ↵Linus Torvalds1-4/+0
git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Pull SCSI fixes from James Bottomley: "Three small driver fixes and one larger unused function set removal in the raid class (so no external impact)" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: snic: Fix double free in snic_tgt_create() scsi: core: raid_class: Remove raid_component_add() scsi: ufs: ufs-qcom: Clear qunipro_g4_sel for HW major version > 5 scsi: ufs: mcq: Fix the search/wrap around logic
2023-08-27tty: shrink the size of struct tty_struct by 40 bytesGreg Kroah-Hartman1-9/+9
It's been a long time since anyone has looked at what struct tty_struct looks like in memory, turns out there was a ton of holes. So move things around a bit, change one variable (closing) from being an int to a bool (it is only being tested for 0/1), and we end up saving 40 bytes per structure overall on x86-64 systems. Before this patch: /* size: 696, cachelines: 11, members: 37 */ /* sum members: 665, holes: 8, sum holes: 31 */ /* forced alignments: 2, forced holes: 1, sum forced holes: 4 */ /* last cacheline: 56 bytes */ After this change: /* size: 656, cachelines: 11, members: 37 */ /* sum members: 654, holes: 1, sum holes: 2 */ /* forced alignments: 2 */ /* last cacheline: 16 bytes */ Cc: Jiri Slaby <[email protected]> Link: https://lore.kernel.org/r/2023082519-cobbler-unholy-8d1f@gregkh Signed-off-by: Greg Kroah-Hartman <[email protected]>
2023-08-25net: stmmac: convert plat->phylink_node to fwnodeRussell King (Oracle)1-1/+1
All users of plat->phylink_node first convert it to a fwnode. Rather than repeatedly convert to a fwnode, store it as a fwnode. To reflect this change, call it plat->port_node instead - it is used for more than just phylink. Signed-off-by: Russell King (Oracle) <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2023-08-25net: phylink: add phylink_limit_mac_speed()Russell King (Oracle)1-0/+2
Add a function which can be used to limit the phylink MAC capabilities to an upper speed limit. Signed-off-by: Russell King (Oracle) <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2023-08-25Merge tag 'for-netdev' of ↵Jakub Kicinski3-2/+9
https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next Daniel Borkmann says: ==================== pull-request: bpf-next 2023-08-25 We've added 87 non-merge commits during the last 8 day(s) which contain a total of 104 files changed, 3719 insertions(+), 4212 deletions(-). The main changes are: 1) Add multi uprobe BPF links for attaching multiple uprobes and usdt probes, which is significantly faster and saves extra fds, from Jiri Olsa. 2) Add support BPF cpu v4 instructions for arm64 JIT compiler, from Xu Kuohai. 3) Add support BPF cpu v4 instructions for riscv64 JIT compiler, from Pu Lehui. 4) Fix LWT BPF xmit hooks wrt their return values where propagating the result from skb_do_redirect() would trigger a use-after-free, from Yan Zhai. 5) Fix a BPF verifier issue related to bpf_kptr_xchg() with local kptr where the map's value kptr type and locally allocated obj type mismatch, from Yonghong Song. 6) Fix BPF verifier's check_func_arg_reg_off() function wrt graph root/node which bypassed reg->off == 0 enforcement, from Kumar Kartikeya Dwivedi. 7) Lift BPF verifier restriction in networking BPF programs to treat comparison of packet pointers not as a pointer leak, from Yafang Shao. 8) Remove unmaintained XDP BPF samples as they are maintained in xdp-tools repository out of tree, from Toke Høiland-Jørgensen. 9) Batch of fixes for the tracing programs from BPF samples in order to make them more libbpf-aware, from Daniel T. Lee. 10) Fix a libbpf signedness determination bug in the CO-RE relocation handling logic, from Andrii Nakryiko. 11) Extend libbpf to support CO-RE kfunc relocations. Also follow-up fixes for bpf_refcount shared ownership implementation, both from Dave Marchevsky. 12) Add a new bpf_object__unpin() API function to libbpf, from Daniel Xu. 13) Fix a memory leak in libbpf to also free btf_vmlinux when the bpf_object gets closed, from Hao Luo. 14) Small error output improvements to test_bpf module, from Helge Deller. * tag 'for-netdev' of https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (87 commits) selftests/bpf: Add tests for rbtree API interaction in sleepable progs bpf: Allow bpf_spin_{lock,unlock} in sleepable progs bpf: Consider non-owning refs to refcounted nodes RCU protected bpf: Reenable bpf_refcount_acquire bpf: Use bpf_mem_free_rcu when bpf_obj_dropping refcounted nodes bpf: Consider non-owning refs trusted bpf: Ensure kptr_struct_meta is non-NULL for collection insert and refcount_acquire selftests/bpf: Enable cpu v4 tests for RV64 riscv, bpf: Support unconditional bswap insn riscv, bpf: Support signed div/mod insns riscv, bpf: Support 32-bit offset jmp insn riscv, bpf: Support sign-extension mov insns riscv, bpf: Support sign-extension load insns riscv, bpf: Fix missing exception handling and redundant zext for LDX_B/H/W samples/bpf: Add note to README about the XDP utilities moved to xdp-tools samples/bpf: Cleanup .gitignore samples/bpf: Remove the xdp_sample_pkts utility samples/bpf: Remove the xdp1 and xdp2 utilities samples/bpf: Remove the xdp_rxq_info utility samples/bpf: Remove the xdp_redirect* utilities ... ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2023-08-25Merge tag 'wireless-next-2023-08-25' of ↵Jakub Kicinski1-58/+177
git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next Kalle Valo says: ==================== wireless-next patches for v6.6 The second pull request for v6.6, this time with both stack and driver changes. Unusually we have only one major new feature but lots of small cleanup all over, I guess this is due to people have been on vacation the last month. Major changes: rtw89 - Introduce Time Averaged SAR (TAS) support * tag 'wireless-next-2023-08-25' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless-next: (114 commits) wifi: rtlwifi: rtl8723: Remove unused function rtl8723_cmd_send_packet() wifi: rtw88: usb: kill and free rx urbs on probe failure wifi: rtw89: Fix clang -Wimplicit-fallthrough in rtw89_query_sar() wifi: rtw89: phy: modify register setting of ENV_MNTR, PHYSTS and DIG wifi: rtw89: phy: add phy_gen_def::cr_base to support WiFi 7 chips wifi: rtw89: mac: define register address of rx_filter to generalize code wifi: rtw89: mac: define internal memory address for WiFi 7 chip wifi: rtw89: mac: generalize code to indirectly access WiFi internal memory wifi: rtw89: mac: add mac_gen_def::band1_offset to map MAC band1 register address wifi: wlcore: sdio: Use module_sdio_driver macro to simplify the code wifi: rtw89: initialize multi-channel handling wifi: rtw89: provide functions to configure NoA for beacon update wifi: rtw89: call rtw89_chan_get() by vif chanctx if aware of vif wifi: rtw89: sar: let caller decide the center frequency to query wifi: rtw89: refine rtw89_correct_cck_chan() by rtw89_hw_to_nl80211_band() wifi: rtw89: add function prototype for coex request duration Fix nomenclature for USB and PCI wireless devices wifi: ath: Use is_multicast_ether_addr() to check multicast Ether address wifi: ath12k: Remove unused declarations wifi: ath12k: add check max message length while scanning with extraie ... ==================== Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Jakub Kicinski <[email protected]>
2023-08-25Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds1-40/+40
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull clk fixes from Stephen Boyd: "One clk driver fix and two clk framework fixes: - Fix an OOB access when devm_get_clk_from_child() is used and devm_clk_release() casts the void pointer to the wrong type - Move clk_rate_exclusive_{get,put}() within the correct ifdefs in clk.h so that the stubs are used when CONFIG_COMMON_CLK=n - Register the proper clk provider function depending on the value of #clock-cells in the TI keystone driver" * tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: clk: Fix slab-out-of-bounds error in devm_clk_release() clk: Fix undefined reference to `clk_rate_exclusive_{get,put}' clk: keystone: syscon-clk: Fix audio refclk
2023-08-25LoadPin: Annotate struct dm_verity_loadpin_trusted_root_digest with __counted_byKees Cook1-1/+1
Prepare for the coming implementation by GCC and Clang of the __counted_by attribute. Flexible array members annotated with __counted_by can have their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family functions). As found with Coccinelle[1], add __counted_by for struct dm_verity_loadpin_trusted_root_digest. Additionally, since the element count member must be set before accessing the annotated flexible array member, move its initialization earlier. [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci Cc: Alasdair Kergon <[email protected]> Cc: Mike Snitzer <[email protected]> Cc: [email protected] Cc: Paul Moore <[email protected]> Cc: James Morris <[email protected]> Cc: "Serge E. Hallyn" <[email protected]> Cc: [email protected] Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Kees Cook <[email protected]>
2023-08-25Merge branches 'pm-sleep', 'pm-qos' and 'powercap'Rafael J. Wysocki1-0/+10
Merge system-wide power management changes and power capping updates for 6.6-rc1: - Add device PM helpers to allow a device to remain powered-on during system-wide transitions (Ulf Hansson). - Rework hibernation memory snapshotting to avoid storing pages filled with zeros in hibernation image files (Brian Geffon). - Add check to make sure that CPU latency QoS constraints do not use negative values (Clive Lin). - Optimize rp->domains memory allocation in the Intel RAPL power capping driver (xiongxin). - Remove recursion while parsing zones in the arm_scmi power capping driver (Cristian Marussi). * pm-sleep: PM: sleep: Add helpers to allow a device to remain powered-on PM: hibernate: don't store zero pages in the image file * pm-qos: PM: QoS: Add check to make sure CPU latency is non-negative * powercap: powercap: intel_rapl: Optimize rp->domains memory allocation powercap: arm_scmi: Remove recursion while parsing zones
2023-08-25Merge branches 'pm-cpuidle' and 'pm-cpufreq'Rafael J. Wysocki1-11/+3
Merge CPU power management updates for 6.6-rc1: - Rework the menu and teo cpuidle governors to avoid calling tick_nohz_get_sleep_length(), which is likely to become quite expensive going forward, too often and improve making decisions regarding whether or not to stop the scheduler tick in the teo governor (Rafael Wysocki). - Improve the performance of cpufreq_stats_create_table() in some cases (Liao Chang). - Fix two issues in the amd-pstate-ut cpufreq driver (Swapnil Sapkal). - Use clamp() helper macro to improve the code readability in cpufreq_verify_within_limits() (Liao Chang). - Set stale CPU frequency to minimum in intel_pstate (Doug Smythies). * pm-cpuidle: cpuidle: teo: Avoid unnecessary variable assignments cpuidle: menu: Skip tick_nohz_get_sleep_length() call in some cases cpuidle: teo: Gather statistics regarding whether or not to stop the tick cpuidle: teo: Skip tick_nohz_get_sleep_length() call in some cases cpuidle: teo: Do not call tick_nohz_get_sleep_length() upfront cpuidle: teo: Drop utilized from struct teo_cpu cpuidle: teo: Avoid stopping the tick unnecessarily when bailing out cpuidle: teo: Update idle duration estimate when choosing shallower state * pm-cpufreq: cpufreq: amd-pstate-ut: Fix kernel panic when loading the driver cpufreq: amd-pstate-ut: Remove module parameter access cpufreq: Use clamp() helper macro to improve the code readability cpufreq: intel_pstate: set stale CPU frequency to minimum cpufreq: stats: Improve the performance of cpufreq_stats_create_table()
2023-08-25Merge branch 'acpi-pm'Rafael J. Wysocki1-2/+8
Merge ACPI power management updates for 6.6-rc1: - Fix and clean up suspend-to-idle interface for AMD systems (Mario Limonciello, Andy Shevchenko). * acpi-pm: ACPI: x86: s2idle: Add a function to get LPS0 constraint for a device ACPI: x86: s2idle: Add for_each_lpi_constraint() helper ACPI: x86: s2idle: Add more debugging for AMD constraints parsing ACPI: x86: s2idle: Fix a logic error parsing AMD constraints table ACPI: x86: s2idle: Catch multiple ACPI_TYPE_PACKAGE objects ACPI: x86: s2idle: Post-increment variables when getting constraints ACPI: Adjust #ifdef for *_lps0_dev use
2023-08-25Merge branches 'acpi-scan', 'acpi-tad', 'acpi-extlog' and 'acpi-misc'Rafael J. Wysocki1-2/+0
Merge ACPI device enumeration changes, ACPI TAD and extlog drivers updates, and miscellaneous ACPI-related changes for 6.6-rc1: - Defer enumeration of devices with _DEP pointing to IVSC (Wentong Wu). - Install SystemCMOS address space handler for ACPI000E (TAD) to meet platform firmware expectations on some platforms (Zhang Rui). - Fix finding the generic error data in the ACPi extlog driver for compatibility with old and new firmware interface versions (Xiaochun Lee). - Remove assorted unused declarations of functions (Yue Haibing). - Move AMBA bus scan handling into arm64 specific directory (Sudeep Holla). * acpi-scan: ACPI: scan: Defer enumeration of devices with a _DEP pointing to IVSC device * acpi-tad: ACPI: TAD: Install SystemCMOS address space handler for ACPI000E * acpi-extlog: ACPI: extlog: Fix finding the generic error data for v3 structure * acpi-misc: ACPI: Remove assorted unused declarations of functions ACPI: Remove unused extern declaration acpi_paddr_to_node() ACPI: Move AMBA bus scan handling into arm64 specific directory
2023-08-25Merge tag 'mm-hotfixes-stable-2023-08-25-11-07' of ↵Linus Torvalds4-9/+35
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull misc fixes from Andrew Morton: "18 hotfixes. 13 are cc:stable and the remainder pertain to post-6.4 issues or aren't considered suitable for a -stable backport" * tag 'mm-hotfixes-stable-2023-08-25-11-07' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: shmem: fix smaps BUG sleeping while atomic selftests: cachestat: catch failing fsync test on tmpfs selftests: cachestat: test for cachestat availability maple_tree: disable mas_wr_append() when other readers are possible madvise:madvise_free_pte_range(): don't use mapcount() against large folio for sharing check madvise:madvise_free_huge_pmd(): don't use mapcount() against large folio for sharing check madvise:madvise_cold_or_pageout_pte_range(): don't use mapcount() against large folio for sharing check mm: multi-gen LRU: don't spin during memcg release mm: memory-failure: fix unexpected return value in soft_offline_page() radix tree: remove unused variable mm: add a call to flush_cache_vmap() in vmap_pfn() selftests/mm: FOLL_LONGTERM need to be updated to 0x100 nilfs2: fix general protection fault in nilfs_lookup_dirty_data_buffers() mm/gup: handle cont-PTE hugetlb pages correctly in gup_must_unshare() via GUP-fast selftests: cgroup: fix test_kmem_basic less than error mm: enable page walking API to lock vmas during the walk smaps: use vm_normal_page_pmd() instead of follow_trans_huge_pmd() mm/gup: reintroduce FOLL_NUMA as FOLL_HONOR_NUMA_FAULT
2023-08-25Merge branch 'acpi-thermal'Rafael J. Wysocki1-0/+9
Merge ACPI thermal driver changes for 6.6-rc1: - Drop non-functional nocrt parameter from ACPI thermal (Mario Limonciello). - Clean up the ACPI thermal driver, rework the handling of firmware notifications in it and make it provide a table of generic trip point structures to the core during initialization (Rafael Wysocki). * acpi-thermal: ACPI: thermal: Eliminate code duplication from acpi_thermal_notify() ACPI: thermal: Drop unnecessary thermal zone callbacks ACPI: thermal: Rework thermal_get_trend() ACPI: thermal: Use trip point table to register thermal zones thermal: core: Rework and rename __for_each_thermal_trip() ACPI: thermal: Introduce struct acpi_thermal_trip ACPI: thermal: Carry out trip point updates under zone lock ACPI: thermal: Clean up acpi_thermal_register_thermal_zone() thermal: core: Add priv pointer to struct thermal_trip thermal: core: Introduce thermal_zone_device_exec() thermal: core: Do not handle trip points with invalid temperature ACPI: thermal: Drop redundant local variable from acpi_thermal_resume() ACPI: thermal: Do not attach private data to ACPI handles ACPI: thermal: Drop enabled flag from struct acpi_thermal_active ACPI: thermal: Drop nocrt parameter
2023-08-25bpf: Consider non-owning refs to refcounted nodes RCU protectedDave Marchevsky1-1/+2
An earlier patch in the series ensures that the underlying memory of nodes with bpf_refcount - which can have multiple owners - is not reused until RCU grace period has elapsed. This prevents use-after-free with non-owning references that may point to recently-freed memory. While RCU read lock is held, it's safe to dereference such a non-owning ref, as by definition RCU GP couldn't have elapsed and therefore underlying memory couldn't have been reused. From the perspective of verifier "trustedness" non-owning refs to refcounted nodes are now trusted only in RCU CS and therefore should no longer pass is_trusted_reg, but rather is_rcu_reg. Let's mark them MEM_RCU in order to reflect this new state. Signed-off-by: Dave Marchevsky <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-08-25bpf: Consider non-owning refs trustedDave Marchevsky1-1/+1
Recent discussions around default kptr "trustedness" led to changes such as commit 6fcd486b3a0a ("bpf: Refactor RCU enforcement in the verifier."). One of the conclusions of those discussions, as expressed in code and comments in that patch, is that we'd like to move away from 'raw' PTR_TO_BTF_ID without some type flag or other register state indicating trustedness. Although PTR_TRUSTED and PTR_UNTRUSTED flags mark this state explicitly, the verifier currently considers trustedness implied by other register state. For example, owning refs to graph collection nodes must have a nonzero ref_obj_id, so they pass the is_trusted_reg check despite having no explicit PTR_{UN}TRUSTED flag. This patch makes trustedness of non-owning refs to graph collection nodes explicit as well. By definition, non-owning refs are currently trusted. Although the ref has no control over pointee lifetime, due to non-owning ref clobbering rules (see invalidate_non_owning_refs) dereferencing a non-owning ref is safe in the critical section controlled by bpf_spin_lock associated with its owning collection. Note that the previous statement does not hold true for nodes with shared ownership due to the use-after-free issue that this series is addressing. True shared ownership was disabled by commit 7deca5eae833 ("bpf: Disable bpf_refcount_acquire kfunc calls until race conditions are fixed"), though, so the statement holds for now. Further patches in the series will change the trustedness state of non-owning refs before re-enabling bpf_refcount_acquire. Let's add NON_OWN_REF type flag to BPF_REG_TRUSTED_MODIFIERS such that a non-owning ref reg state would pass is_trusted_reg check. Somewhat surprisingly, this doesn't result in any change to user-visible functionality elsewhere in the verifier: graph collection nodes are all marked MEM_ALLOC, which tends to be handled in separate codepaths from "raw" PTR_TO_BTF_ID. Regardless, let's be explicit here and document the current state of things before changing it elsewhere in the series. Signed-off-by: Dave Marchevsky <[email protected]> Acked-by: Yonghong Song <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Alexei Starovoitov <[email protected]>
2023-08-25pcpcntr: add group allocation/freeMateusz Guzik1-7/+34
Allocations and frees are globally serialized on the pcpu lock (and the CPU hotplug lock if enabled, which is the case on Debian). At least one frequent consumer allocates 4 back-to-back counters (and frees them in the same manner), exacerbating the problem. While this does not fully remedy scalability issues, it is a step towards that goal and provides immediate relief. Signed-off-by: Mateusz Guzik <[email protected]> Reviewed-by: Dennis Zhou <[email protected]> Reviewed-by: Vegard Nossum <[email protected]> Link: https://lore.kernel.org/r/[email protected] [Dennis: reflowed a few lines] Signed-off-by: Dennis Zhou <[email protected]>
2023-08-25Merge tag 'intel-pinctrl-v6.6-1' of ↵Linus Walleij1-0/+9
git://git.kernel.org/pub/scm/linux/kernel/git/pinctrl/intel into devel intel-pinctrl for v6.6-1 * New library driver for Intel MID to deduplicate code (Raag Jadav) * Reuse common functions from pinctrl-intel to reduce the code (Raag Jadav) * Move most of the exported functions to the PINCTRL_INTEL namespace * Make use of pm_ptr() in Bay Trail and Lynxpoint drivers * Introduce DEFINE_NOIRQ_DEV_PM_OPS() helper and use it in a few drivers * Consolidata ACPI dependency in Kconfig (Raag Jadav) * Fix address_space_handler() argument in Cherryview driver (Raag Jadav) * Optinmize byt_pin_config_set() to avoid IO in error cases (Raag Jadav) The following is an automated git shortlog grouped by driver: at91: - Switch to use DEFINE_NOIRQ_DEV_PM_OPS() helper baytrail: - Make use of pm_ptr() - reuse common functions from pinctrl-intel - consolidate common mask operation cherryview: - fix address_space_handler() argument - Switch to use DEFINE_NOIRQ_DEV_PM_OPS() helper - reuse common functions from pinctrl-intel intel: - consolidate ACPI dependency - Switch to use exported namespace - export common pinctrl functions lynxpoint: - Make use of pm_ptr() - reuse common functions from pinctrl-intel Merge patch series: - Merge patch series "Introduce Intel Tangier pinctrl driver" - Merge patch series "Reuse common functions from pinctrl-intel" merrifield: - Adapt to Intel Tangier driver moorefield: - Adapt to Intel Tangier driver mvebu: - Switch to use DEFINE_NOIRQ_DEV_PM_OPS() helper pm: - Introduce DEFINE_NOIRQ_DEV_PM_OPS() helper renesas: - Switch to use DEFINE_NOIRQ_DEV_PM_OPS() helper tangier: - Introduce Intel Tangier driver tegra: - Switch to use DEFINE_NOIRQ_DEV_PM_OPS() helper Signed-off-by: Linus Walleij <[email protected]>
2023-08-25mmc: atmel-mci: move atmel MCI header fileBalamanikandan Gunasundar1-46/+0
Move the contents of linux/atmel-mci.h into drivers/mmc/host/atmel-mci.c as it is only used in one file Signed-off-by: Balamanikandan Gunasundar <[email protected]> Reviewed-by: Ludovic Desroches <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Ulf Hansson <[email protected]>
2023-08-25mmc: atmel-mci: Convert to gpio descriptorsBalamanikandan Gunasundar1-2/+2
Replace the legacy GPIO APIs with gpio descriptor consumer interface. To maintain backward compatibility, we rely on the "cd-inverted" property to manage the invertion flag instead of GPIO property. Signed-off-by: Balamanikandan Gunasundar <[email protected]> Reviewed-by: Linus Walleij <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Ulf Hansson <[email protected]>
2023-08-25Merge branch 'for-next/perf' into for-next/coreWill Deacon3-3/+21
* for-next/perf: drivers/perf: hisi: Update HiSilicon PMU maintainers arm_pmu: acpi: Add a representative platform device for TRBE arm_pmu: acpi: Refactor arm_spe_acpi_register_device() hw_breakpoint: fix single-stepping when using bpf_overflow_handler perf/imx_ddr: don't enable counter0 if none of 4 counters are used perf/imx_ddr: speed up overflow frequency of cycle drivers/perf: hisi: Schedule perf session according to locality perf/arm-dmc620: Fix dmc620_pmu_irqs_lock/cpu_hotplug_lock circular lock dependency perf/smmuv3: Add MODULE_ALIAS for module auto loading perf/smmuv3: Enable HiSilicon Erratum 162001900 quirk for HIP08/09 perf: pmuv3: Remove comments from armv8pmu_[enable|disable]_event() perf/arm-cmn: Add CMN-700 r3 support perf/arm-cmn: Refactor HN-F event selector macros perf/arm-cmn: Remove spurious event aliases drivers/perf: Explicitly include correct DT includes perf: pmuv3: Add Cortex A520, A715, A720, X3 and X4 PMUs dt-bindings: arm: pmu: Add Cortex A520, A715, A720, X3, and X4 perf/smmuv3: Remove build dependency on ACPI perf: xgene_pmu: Convert to devm_platform_ioremap_resource() driver/perf: Add identifier sysfs file for Yitian 710 DDR
2023-08-25mmc: core: Add host specific tuning support for SD HS modeWenchao Chen1-0/+8
To support the need for host specific tuning for SD high-speed mode, let's add two new optional callbacks, ->prepare|execute_sd_hs_tuning() and let's call them when switching into the SD high-speed mode. Note that, during the tuning process it's also needed for host drivers to send commands to the SD card to verify that the tuning process succeeds. Therefore, let's also share the corresponding functions from the core to allow this. Signed-off-by: Wenchao Chen <[email protected]> Link: https://lore.kernel.org/r/[email protected] [Ulf: Dropped unnecessary function declarations and updated the commit msg] Signed-off-by: Ulf Hansson <[email protected]>