- 04 Aug, 2024 5 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull irq fixes from Thomas Gleixner: "A couple of fixes for interrupt chip drivers: - Make sure to skip the clear register space in the MBIGEN driver when calculating the node register index. Otherwise the clear register is clobbered and the wrong node registers are accessed. - Fix a signed/unsigned confusion in the loongarch CPU driver which converts an error code to a huge "valid" interrupt number. - Convert the mesion GPIO interrupt controller lock to a raw spinlock so it works on RT. - Add a missing static to a internal function in the pic32 EVIC driver" * tag 'irq-urgent-2024-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: irqchip/mbigen: Fix mbigen node address layout irqchip/meson-gpio: Convert meson_gpio_irq_controller::lock to 'raw_spinlock_t' irqchip/irq-pic32-evic: Add missing 'static' to internal function irqchip/loongarch-cpu: Fix return value of lpic_gsi_to_irq()
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull locking fixes from Thomas Gleixner: "Two fixes for locking and jump labels: - Ensure that the atomic_cmpxchg() conditions are correct and evaluating to true on any non-zero value except 1. The missing check of the return value leads to inconsisted state of the jump label counter. - Add a missing type conversion in the paravirt spinlock code which makes loongson build again" * tag 'locking-urgent-2024-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: jump_label: Fix the fix, brown paper bags galore locking/pvqspinlock: Correct the type of "old" variable in pv_kick_node()
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Rob Herring (Arm) authored
Commit 04f08ef2 ("arm/arm64: dts: arm: Use generic clock and regulator nodenames") renamed nodes and created 2 "clock-24000000" nodes (at different paths). The kernel can't handle these duplicate names even though they are at different paths. Fix this by renaming one of the nodes to "clock-pclk". This name is aligned with other Arm boards (those didn't have a known frequency to use in the node name). Fixes: 04f08ef2 ("arm/arm64: dts: arm: Use generic clock and regulator nodenames") Reported-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Rob Herring (Arm) <robh@kernel.org> Tested-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Tested-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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git://git.samba.org/sfrench/cifs-2.6Linus Torvalds authored
Pull smb client fixes from Steve French: - two reparse point fixes - minor cleanup - additional trace point (to help debug a recent problem) * tag '6.11-rc1-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: update internal version number smb: client: fix FSCTL_GET_REPARSE_POINT against NetApp smb3: add dynamic tracepoints for shutdown ioctl cifs: Remove cifs_aio_ctx smb: client: handle lack of FSCTL_GET_REPARSE_POINT support
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git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediaLinus Torvalds authored
Pull media fixes from Mauro Carvalho Chehab: - two Kconfig fixes - one fix for the UVC driver addressing probing time detection of a UVC custom controls - one fix related to PDF generation * tag 'media/v6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: media: v4l: Fix missing tabular column hint for Y14P format media: intel/ipu6: select AUXILIARY_BUS in Kconfig media: ipu-bridge: fix ipu6 Kconfig dependencies media: uvcvideo: Fix custom control mapping probing
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- 03 Aug, 2024 5 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsiLinus Torvalds authored
Pull SCSI fixes from James Bottomley: "One core change that reverts the double message print patch in sd.c (it was causing regressions on embedded systems). The rest are driver fixes in ufs, mpt3sas and mpi3mr" * tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: scsi: ufs: exynos: Don't resume FMP when crypto support is disabled scsi: mpt3sas: Avoid IOMMU page faults on REPORT ZONES scsi: mpi3mr: Avoid IOMMU page faults on REPORT ZONES scsi: ufs: core: Do not set link to OFF state while waking up from hibernation scsi: Revert "scsi: sd: Do not repeat the starting disk message" scsi: ufs: core: Fix deadlock during RTC update scsi: ufs: core: Bypass quick recovery if force reset is needed scsi: ufs: core: Check LSDBS cap when !mcq
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git://git.kernel.org/pub/scm/fs/xfs/xfs-linuxLinus Torvalds authored
Pull xfs fixes from Chandan Babu: - Fix memory leak when corruption is detected during scrubbing parent pointers - Allow SECURE namespace xattrs to use reserved block pool to in order to prevent ENOSPC - Save stack space by passing tracepoint's char array to file_path() instead of another stack variable - Remove unused parameter in macro XFS_DQUOT_LOGRES - Replace comma with semicolon in a couple of places * tag 'xfs-6.11-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: convert comma to semicolon xfs: convert comma to semicolon xfs: remove unused parameter in macro XFS_DQUOT_LOGRES xfs: fix file_path handling in tracepoints xfs: allow SECURE namespace xattrs to use reserved block pool xfs: fix a memory leak
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Linus Torvalds authored
Merge tag 'parisc-for-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux Pull parisc architecture fixes from Helge Deller: - fix unaligned memory accesses when calling BPF functions - adjust memory size constants to fix possible DMA corruptions * tag 'parisc-for-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux: parisc: fix a possible DMA corruption parisc: fix unaligned accesses in BPF
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Linus Torvalds authored
The runtime constants linker script depended on documented linker behavior [1]: "If an output section’s name is the same as the input section’s name and is representable as a C identifier, then the linker will automatically PROVIDE two symbols: __start_SECNAME and __stop_SECNAME, where SECNAME is the name of the section. These indicate the start address and end address of the output section respectively" to just automatically define the symbol names for the bounds of the runtime constant arrays. It turns out that this isn't actually something we can rely on, with old linkers not generating these automatic symbols. It looks to have been introduced in binutils-2.29 back in 2017, and we still support building with versions all the way back to binutils-2.25 (from 2015). And yes, Oleg actually seems to be using such ancient versions of binutils. So instead of depending on the implicit symbols from "section names match and are representable C identifiers", just do this all manually. It's not like it causes us any extra pain, we already have to do that for all the other sections that we use that often have special characters in them. Reported-and-tested-by: Oleg Nesterov <oleg@redhat.com> Link: https://sourceware.org/binutils/docs/ld/Input-Section-Example.html [1] Link: https://lore.kernel.org/all/20240802114518.GA20924@redhat.com/Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Hans Verkuil authored
Merge tag 'tags/fixes-media-uvc-20230722' of git://git.kernel.org/pub/scm/linux/kernel/git/pinchartl/linux.git uvcvideo v6.11 regression fix: fix custom control mapping probing Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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- 02 Aug, 2024 26 commits
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git://git.kernel.dk/linuxLinus Torvalds authored
Pull io_uring fixes from Jens Axboe: "Two minor tweaks for the NAPI handling, both from Olivier: - Kill two unused list definitions - Ensure that multishot NAPI doesn't age away" * tag 'io_uring-6.11-20240802' of git://git.kernel.dk/linux: io_uring: remove unused local list heads in NAPI functions io_uring: keep multishot request NAPI timeout current
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pmLinus Torvalds authored
Pull thermal control fixes from Rafael Wysocki: "These fix a few issues related to the MSI IRQs management in the int340x thermal driver, fix a thermal core issue that may lead to missing trip point crossing events and update the thermal core documentation. Specifics: - Fix MSI error path cleanup in int340x, allow it to work with a subset of thermal MSI IRQs if some of them are not working and make it free all MSI IRQs on module exit (Srinivas Pandruvada) - Fix a thermal core issue that may lead to missing trip point crossing events in some cases when thermal_zone_set_trips() is used and update the thermal core documentation (Rafael Wysocki)" * tag 'thermal-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: thermal: core: Update thermal zone registration documentation thermal: trip: Avoid skipping trips in thermal_zone_set_trips() thermal: intel: int340x: Free MSI IRQ vectors on module exit thermal: intel: int340x: Allow limited thermal MSI support thermal: intel: int340x: Fix kernel warning during MSI cleanup
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git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linuxLinus Torvalds authored
Pull arm64 fixes from Catalin Marinas: - Expand the speculative SSBS errata workaround to more CPUs - Ensure jump label changes are visible to all CPUs with a kick_all_cpus_sync() (and also enable jump label batching as part of the fix) - The shadow call stack sanitiser is currently incompatible with Rust, make CONFIG_RUST conditional on !CONFIG_SHADOW_CALL_STACK * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: jump_label: Ensure patched jump_labels are visible to all CPUs rust: SHADOW_CALL_STACK is incompatible with Rust arm64: errata: Expand speculative SSBS workaround (again) arm64: cputype: Add Cortex-A725 definitions arm64: cputype: Add Cortex-X1C definitions
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https://github.com/ceph/ceph-clientLinus Torvalds authored
Pull ceph fix from Ilya Dryomov: "A fix for a potential hang in the MDS when cap revocation races with the client releasing the caps in question, marked for stable" * tag 'ceph-for-6.11-rc2' of https://github.com/ceph/ceph-client: ceph: force sending a cap update msg back to MDS for revoke op
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git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds authored
Pull kvm updates from Paolo Bonzini: "The bulk of the changes here is a largish change to guest_memfd, delaying the clearing and encryption of guest-private pages until they are actually added to guest page tables. This started as "let's make it impossible to misuse the API" for SEV-SNP; but then it ballooned a bit. The new logic is generally simpler and more ready for hugepage support in guest_memfd. Summary: - fix latent bug in how usage of large pages is determined for confidential VMs - fix "underline too short" in docs - eliminate log spam from limited APIC timer periods - disallow pre-faulting of memory before SEV-SNP VMs are initialized - delay clearing and encrypting private memory until it is added to guest page tables - this change also enables another small cleanup: the checks in SNP_LAUNCH_UPDATE that limit it to non-populated, private pages can now be moved in the common kvm_gmem_populate() function - fix compilation error that the RISC-V merge introduced in selftests" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: x86/mmu: fix determination of max NPT mapping level for private pages KVM: riscv: selftests: Fix compile error KVM: guest_memfd: abstract how prepared folios are recorded KVM: guest_memfd: let kvm_gmem_populate() operate only on private gfns KVM: extend kvm_range_has_memory_attributes() to check subset of attributes KVM: cleanup and add shortcuts to kvm_range_has_memory_attributes() KVM: guest_memfd: move check for already-populated page to common code KVM: remove kvm_arch_gmem_prepare_needed() KVM: guest_memfd: make kvm_gmem_prepare_folio() operate on a single struct kvm KVM: guest_memfd: delay kvm_gmem_prepare_folio() until the memory is passed to the guest KVM: guest_memfd: return locked folio from __kvm_gmem_get_pfn KVM: rename CONFIG_HAVE_KVM_GMEM_* to CONFIG_HAVE_KVM_ARCH_GMEM_* KVM: guest_memfd: do not go through struct page KVM: guest_memfd: delay folio_mark_uptodate() until after successful preparation KVM: guest_memfd: return folio from __kvm_gmem_get_pfn() KVM: x86: disallow pre-fault for SNP VMs before initialization KVM: Documentation: Fix title underline too short warning KVM: x86: Eliminate log spam from limited APIC timer periods
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Paolo Bonzini authored
* fix latent bug in how usage of large pages is determined for confidential VMs * fix "underline too short" in docs * eliminate log spam from limited APIC timer periods * disallow pre-faulting of memory before SEV-SNP VMs are initialized * delay clearing and encrypting private memory until it is added to guest page tables * this change also enables another small cleanup: the checks in SNP_LAUNCH_UPDATE that limit it to non-populated, private pages can now be moved in the common kvm_gmem_populate() function
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git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linuxLinus Torvalds authored
Pull RISC-V fixes from Palmer Dabbelt: - A fix to avoid dropping some of the internal pseudo-extensions, which breaks *envcfg dependency parsing - The kernel entry address is now aligned in purgatory, which avoids a misaligned load that can lead to crash on systems that don't support misaligned accesses early in boot - The FW_SFENCE_VMA_RECEIVED perf event was duplicated in a handful of perf JSON configurations, one of them been updated to FW_SFENCE_VMA_ASID_SENT - The starfive cache driver is now restricted to 64-bit systems, as it isn't 32-bit clean - A fix for to avoid aliasing legacy-mode perf counters with software perf counters - VM_FAULT_SIGSEGV is now handled in the page fault code - A fix for stalls during CPU hotplug due to IPIs being disabled - A fix for memblock bounds checking. This manifests as a crash on systems with discontinuous memory maps that have regions that don't fit in the linear map * tag 'riscv-for-linus-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Fix linear mapping checks for non-contiguous memory regions RISC-V: Enable the IPI before workqueue_online_cpu() riscv/mm: Add handling for VM_FAULT_SIGSEGV in mm_fault_error() perf: riscv: Fix selecting counters in legacy mode cache: StarFive: Require a 64-bit system perf arch events: Fix duplicate RISC-V SBI firmware event name riscv/purgatory: align riscv_kernel_entry riscv: cpufeature: Do not drop Linux-internal extensions
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https://github.com/kvm-riscv/linuxPaolo Bonzini authored
KVM/riscv fixes for 6.11, take #1 - Fix compile error in get-reg-list selftests
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git://git.kernel.org/pub/scm/linux/kernel/git/s390/linuxLinus Torvalds authored
Pull s390 fixes from Vasily Gorbik: - remove unused empty CPU alternatives header file - fix recently and erroneously removed exception handling when loading an invalid floating point register - ptdump fixes to reflect the recent changes due to the uncoupling of physical vs virtual kernel address spaces - changes to avoid the unnecessary splitting of large pages in kernel mappings - add the missing MODULE_DESCRIPTION for the CIO modules * tag 's390-6.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390: Keep inittext section writable s390/vmlinux.lds.S: Move ro_after_init section behind rodata section s390/mm: Get rid of RELOC_HIDE() s390/mm/ptdump: Improve sorting of markers s390/mm/ptdump: Add support for relocated lowcore mapping s390/mm/ptdump: Fix handling of identity mapping area s390/cio: Add missing MODULE_DESCRIPTION() macros s390/alternatives: Remove unused empty header file s390/fpu: Re-add exception handling in load_fpu_state()
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Linus Torvalds authored
Merge tag 'asm-generic-fixes-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic Pull asm-generic fixes from Arnd Bergmann: "These are three important bug fixes for the cross-architecture tree, fixing a regression with the new syscall.tbl file, the inconsistent numbering for the new uretprobe syscall and a bug with iowrite64be on alpha" * tag 'asm-generic-fixes-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: syscalls: fix syscall macros for newfstat/newfstatat uretprobe: change syscall number, again alpha: fix ioread64be()/iowrite64be() helpers
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git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/soundLinus Torvalds authored
Pull sound fixes from Takashi Iwai: "A small collection of fixes: - Revert of FireWire changes that caused a long-time regression - Another long-time regression fix for AMD HDMI - MIDI2 UMP fixes - HD-audio Conexant codec fixes and a quirk" * tag 'sound-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ALSA: hda: Conditionally use snooping for AMD HDMI ALSA: usb-audio: Correct surround channels in UAC1 channel map ALSA: seq: ump: Explicitly reset RPN with Null RPN ALSA: seq: ump: Transmit RPN/NRPN message at each MSB/LSB data reception ALSA: seq: ump: Use the common RPN/bank conversion context ALSA: ump: Explicitly reset RPN with Null RPN ALSA: ump: Transmit RPN/NRPN message at each MSB/LSB data reception Revert "ALSA: firewire-lib: operate for period elapse event in process context" Revert "ALSA: firewire-lib: obsolete workqueue for period update" ALSA: hda/realtek: Add quirk for Acer Aspire E5-574G ALSA: seq: ump: Optimize conversions from SysEx to UMP ALSA: hda/conexant: Mute speakers at suspend / shutdown ALSA: hda/generic: Add a helper to mute speakers at suspend/shutdown ALSA: hda: conexant: Fix headset auto detect fail in the polling mode
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https://gitlab.freedesktop.org/drm/kernelLinus Torvalds authored
Pull drm fixes from Dave Airlie: "Regular weekly fixes. This is a bit larger than usual but doesn't seem too crazy. Most of it is vmwgfx changes that fix a bunch of issues with wayland userspaces with dma-buf/external buffers and modesetting fixes. Otherwise it's kinda spread out, v3d fixes some new ioctls, nouveau has regression revert and fixes, amdgpu, i915 and ast have some small fixes, and some core fixes spread about. client: - fix error code atomic: - allow damage clips with async flips - allow explicit sync with async flips kselftests: - fix dmabuf-heaps test panic: - fix schedule_work in panic paths panel: - fix OrangePi Neo orientation gpuvm: - fix missing dependency amdgpu: - SMU 14.x update - Fix contiguous VRAM handling for IB parsing - GFX 12 fix - Regression fix for old APUs i915: - Static analysis fix for int overflow - Fix for HDCP2_STREAM_STATUS macro and removal of PWR_CLK_STATE for gen12 nouveau: - revert busy wait change that caused a resume regression - fix buffer placement fault on dynamic pm s/r - fix refcount underflow ast: - fix black screen on resume - wake during connector status detect v3d: - fix issues with perf/timestamp ioctls vmwgfx: - fix deadlock in dma-buf fence polling - fix screen surface refcounting - fix dumb buffer handling - fix support for external buffers - fix overlay with screen targets - trigger modeset on screen moves" * tag 'drm-fixes-2024-08-02' of https://gitlab.freedesktop.org/drm/kernel: (31 commits) Revert "nouveau: rip out busy fence waits" nouveau: set placement to original placement on uvmm validate. drm/atomic: Allow userspace to use damage clips with async flips drm/atomic: Allow userspace to use explicit sync with atomic async flips drm/i915: Fix possible int overflow in skl_ddi_calculate_wrpll() drm/i915/hdcp: Fix HDCP2_STREAM_STATUS macro drm/ast: astdp: Wake up during connector status detection i915/perf: Remove code to update PWR_CLK_STATE for gen12 kselftests: dmabuf-heaps: Ensure the driver name is null-terminated drm/client: Fix error code in drm_client_buffer_vmap_local() drm/amdgpu: Fix APU handling in amdgpu_pm_load_smu_firmware() drm/amdgpu: increase mes log buffer size for gfx12 drm/amdgpu: fix contiguous handling for IB parsing v2 drm/amdgpu/pm: support gpu_metrics sysfs interface for smu v14.0.2/3 drm/vmwgfx: Trigger a modeset when the screen moves drm/vmwgfx: Fix overlay when using Screen Targets drm/vmwgfx: Add basic support for external buffers drm/vmwgfx: Fix handling of dumb buffers drm/vmwgfx: Make sure the screen surface is ref counted drm/vmwgfx: Fix a deadlock in dma buf fence polling ...
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Steve French authored
To 2.50 Signed-off-by: Steve French <stfrench@microsoft.com>
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Paulo Alcantara authored
NetApp server requires the file to be open with FILE_READ_EA access in order to support FSCTL_GET_REPARSE_POINT, otherwise it will return STATUS_INVALID_DEVICE_REQUEST. It doesn't make any sense because there's no requirement for FILE_READ_EA bit to be set nor STATUS_INVALID_DEVICE_REQUEST being used for something other than "unsupported reparse points" in MS-FSA. To fix it and improve compatibility, set FILE_READ_EA & SYNCHRONIZE bits to match what Windows client currently does. Tested-by: Sebastian Steinbeisser <Sebastian.Steinbeisser@lrz.de> Acked-by: Tom Talpey <tom@talpey.com> Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.com> Signed-off-by: Steve French <stfrench@microsoft.com>
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Steve French authored
For debugging an umount failure in xfstests generic/043 generic/044 in some configurations, we needed more information on the shutdown ioctl which was suspected of being related to the cause, so tracepoints are added in this patch e.g. "trace-cmd record -e smb3_shutdown_enter -e smb3_shutdown_done -e smb3_shutdown_err" Sample output: godown-47084 [011] ..... 3313.756965: smb3_shutdown_enter: flags=0x1 tid=0x733b3e75 godown-47084 [011] ..... 3313.756968: smb3_shutdown_done: flags=0x1 tid=0x733b3e75 Tested-by: Anthony Nandaa (Microsoft) <profnandaa@gmail.com> Signed-off-by: Steve French <stfrench@microsoft.com>
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David Howells authored
Remove struct cifs_aio_ctx and its associated alloc/release functions as it is no longer used, the functions being taken over by netfslib. Signed-off-by: David Howells <dhowells@redhat.com> cc: Steve French <sfrench@samba.org> cc: linux-cifs@vger.kernel.org Signed-off-by: Steve French <stfrench@microsoft.com>
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Paulo Alcantara authored
As per MS-FSA 2.1.5.10.14, support for FSCTL_GET_REPARSE_POINT is optional and if the server doesn't support it, STATUS_INVALID_DEVICE_REQUEST must be returned for the operation. If we find files with reparse points and we can't read them due to lack of client or server support, just ignore it and then treat them as regular files or junctions. Fixes: 5f71ebc4 ("smb: client: parse reparse point flag in create response") Reported-by: Sebastian Steinbeisser <Sebastian.Steinbeisser@lrz.de> Tested-by: Sebastian Steinbeisser <Sebastian.Steinbeisser@lrz.de> Acked-by: Tom Talpey <tom@talpey.com> Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.com> Signed-off-by: Steve French <stfrench@microsoft.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/libata/linuxLinus Torvalds authored
Pull ata fix from Damien Le Moal: - Add missing power-domains property to the device tree bindings for the Rockchip Designware AHCI adapter (from Heiko) * tag 'ata-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux: dt-bindings: ata: rockchip-dwc-ahci: add missing power-domains
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfsLinus Torvalds authored
Pull vfs fix from Al Viro: "do_dup2() out-of-bounds array speculation fix" * tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: protect the fetch of ->fd[fd] in do_dup2() from mispredictions
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Will Deacon authored
Although the Arm architecture permits concurrent modification and execution of NOP and branch instructions, it still requires some synchronisation to ensure that other CPUs consistently execute the newly written instruction: > When the modified instructions are observable, each PE that is > executing the modified instructions must execute an ISB or perform a > context synchronizing event to ensure execution of the modified > instructions Prior to commit f6cc0c50 ("arm64: Avoid calling stop_machine() when patching jump labels"), the arm64 jump_label patching machinery performed synchronisation using stop_machine() after each modification, however this was problematic when flipping static keys from atomic contexts (namely, the arm_arch_timer CPU hotplug startup notifier) and so we switched to the _nosync() patching routines to avoid "scheduling while atomic" BUG()s during boot. In hindsight, the analysis of the issue in f6cc0c50 isn't quite right: it cites the use of IPIs in the default patching routines as the cause of the lockup, whereas stop_machine() does not rely on IPIs and the I-cache invalidation is performed using __flush_icache_range(), which elides the call to kick_all_cpus_sync(). In fact, the blocking wait for other CPUs is what triggers the BUG() and the problem remains even after f6cc0c50, for example because we could block on the jump_label_mutex. Eventually, the arm_arch_timer driver was fixed to avoid the static key entirely in commit a862fc22 ("clocksource/arm_arch_timer: Remove use of workaround static key"). This all leaves the jump_label patching code in a funny situation on arm64 as we do not synchronise with other CPUs to reduce the likelihood of a bug which no longer exists. Consequently, toggling a static key on one CPU cannot be assumed to take effect on other CPUs, leading to potential issues, for example with missing preempt notifiers. Rather than revert f6cc0c50 and go back to stop_machine() for each patch site, implement arch_jump_label_transform_apply() and kick all the other CPUs with an IPI at the end of patching. Cc: Alexander Potapenko <glider@google.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Marc Zyngier <maz@kernel.org> Fixes: f6cc0c50 ("arm64: Avoid calling stop_machine() when patching jump labels") Signed-off-by: Will Deacon <will@kernel.org> Reviewed-by: Catalin Marinas <catalin.marinas@arm.com> Reviewed-by: Marc Zyngier <maz@kernel.org> Link: https://lore.kernel.org/r/20240731133601.3073-1-will@kernel.orgSigned-off-by: Catalin Marinas <catalin.marinas@arm.com>
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Arnd Bergmann authored
The __NR_newfstat and __NR_newfstatat macros accidentally got renamed in the conversion to the syscall.tbl format, dropping the 'new' portion of the name. In an unrelated change, the two syscalls are no longer architecture specific but are once more defined on all 64-bit architectures, so the 'newstat' ABI keyword can be dropped from the table as a simplification. Fixes: Fixes: 4fe53bf2 ("syscalls: add generic scripts/syscall.tbl") Closes: https://lore.kernel.org/lkml/838053e0-b186-4e9f-9668-9a3384a71f23@app.fastmail.com/T/#tReported-by: Florian Weimer <fweimer@redhat.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Arnd Bergmann authored
Despite multiple attempts to get the syscall number assignment right for the newly added uretprobe syscall, we ended up with a bit of a mess: - The number is defined as 467 based on the assumption that the xattrat family of syscalls would use 463 through 466, but those did not make it into 6.11. - The include/uapi/asm-generic/unistd.h file still lists the number 463, but the new scripts/syscall.tbl that was supposed to have the same data lists 467 instead as the number for arc, arm64, csky, hexagon, loongarch, nios2, openrisc and riscv. None of these architectures actually provide a uretprobe syscall. - All the other architectures (powerpc, arm, mips, ...) don't list this syscall at all. There are two ways to make it consistent again: either list it with the same syscall number on all architectures, or only list it on x86 but not in scripts/syscall.tbl and asm-generic/unistd.h. Based on the most recent discussion, it seems like we won't need it anywhere else, so just remove the inconsistent assignment and instead move the x86 number to the next available one in the architecture specific range, which is 335. Fixes: 5c28424e ("syscalls: Fix to add sys_uretprobe to syscall.tbl") Fixes: 190fec72 ("uprobe: Wire up uretprobe system call") Fixes: 63ded110 ("uprobe: Change uretprobe syscall scope and number") Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Reviewed-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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Rafael J. Wysocki authored
The thermal sysfs API document is outdated. One of the problems with it is that is still documents thermal_zone_device_register() which does not exit any more and it does not reflect the current thermal zone operations definition. Replace the thermal_zone_device_register() description in it with a thermal_zone_device_register_with_trips() description, including an update of the thermal zone operations list. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Lukasz Luba <lukasz.luba@arm.com> Link: https://patch.msgid.link/2767845.mvXUDI8C0e@rjwysocki.net
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Dave Airlie authored
This reverts commit d45bb9c5. Just got a report that this causes some suspend/resume issues, so back it out and I'll investigate it later. Reported-by: Mike Galbraith <efault@gmx.de> Signed-off-by: Dave Airlie <airlied@redhat.com>
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Dave Airlie authored
Merge tag 'drm-misc-fixes-2024-08-01' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes A couple drm_panic fixes, several v3d fixes to increase the new timestamp API safety, several fixes for vmwgfx for various modesetting issues, PM fixes for ast, async flips improvements and two fixes for nouveau to fix resource refcounting and buffer placement. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maxime Ripard <mripard@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240801-interesting-antique-bat-2fe4c0@houat
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Dave Airlie authored
Merge tag 'drm-intel-fixes-2024-08-01' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes - Static analysis fix for int overflow - Fix for HDCP2_STREAM_STATUS macro and removal of PWR_CLK_STATE for gen12 Signed-off-by: Dave Airlie <airlied@redhat.com> From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/ZqslBkcZlInYdYgm@jlahtine-mobl.ger.corp.intel.com
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- 01 Aug, 2024 4 commits
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Dave Airlie authored
Merge tag 'amd-drm-fixes-6.11-2024-07-27' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes amd-drm-fixes-6.11-2024-07-27: amdgpu: - SMU 14.x update - Fix contiguous VRAM handling for IB parsing - GFX 12 fix - Regression fix for old APUs Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240728025407.2115881-1-alexander.deucher@amd.com
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Al Viro authored
both callers have verified that fd is not greater than ->max_fds; however, misprediction might end up with tofree = fdt->fd[fd]; being speculatively executed. That's wrong for the same reasons why it's wrong in close_fd()/file_close_fd_locked(); the same solution applies - array_index_nospec(fd, fdt->max_fds) could differ from fd only in case of speculative execution on mispredicted path. Cc: stable@vger.kernel.org Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Stuart Menefy authored
The RISC-V kernel already has checks to ensure that memory which would lie outside of the linear mapping is not used. However those checks use memory_limit, which is used to implement the mem= kernel command line option (to limit the total amount of memory, not its address range). When memory is made up of two or more non-contiguous memory banks this check is incorrect. Two changes are made here: - add a call in setup_bootmem() to memblock_cap_memory_range() which will cause any memory which falls outside the linear mapping to be removed from the memory regions. - remove the check in create_linear_mapping_page_table() which was intended to remove memory which is outside the liner mapping based on memory_limit, as it is no longer needed. Note a check for mapping more memory than memory_limit (to implement mem=) is unnecessary because of the existing call to memblock_enforce_memory_limit(). This issue was seen when booting on a SV39 platform with two memory banks: 0x00,80000000 1GiB 0x20,00000000 32GiB This memory range is 158GiB from top to bottom, but the linear mapping is limited to 128GiB, so the lower block of RAM will be mapped at PAGE_OFFSET, and the upper block straddles the top of the linear mapping. This causes the following Oops: [ 0.000000] Linux version 6.10.0-rc2-gd3b8dd5b51dd-dirty (stuart.menefy@codasip.com) (riscv64-codasip-linux-gcc (GCC) 13.2.0, GNU ld (GNU Binutils) 2.41.0.20231213) #20 SMP Sat Jun 22 11:34:22 BST 2024 [ 0.000000] memblock_add: [0x0000000080000000-0x00000000bfffffff] early_init_dt_add_memory_arch+0x4a/0x52 [ 0.000000] memblock_add: [0x0000002000000000-0x00000027ffffffff] early_init_dt_add_memory_arch+0x4a/0x52 ... [ 0.000000] memblock_alloc_try_nid: 23724 bytes align=0x8 nid=-1 from=0x0000000000000000 max_addr=0x0000000000000000 early_init_dt_alloc_memory_arch+0x1e/0x48 [ 0.000000] memblock_reserve: [0x00000027ffff5350-0x00000027ffffaffb] memblock_alloc_range_nid+0xb8/0x132 [ 0.000000] Unable to handle kernel paging request at virtual address fffffffe7fff5350 [ 0.000000] Oops [#1] [ 0.000000] Modules linked in: [ 0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 6.10.0-rc2-gd3b8dd5b51dd-dirty #20 [ 0.000000] Hardware name: codasip,a70x (DT) [ 0.000000] epc : __memset+0x8c/0x104 [ 0.000000] ra : memblock_alloc_try_nid+0x74/0x84 [ 0.000000] epc : ffffffff805e88c8 ra : ffffffff806148f6 sp : ffffffff80e03d50 [ 0.000000] gp : ffffffff80ec4158 tp : ffffffff80e0bec0 t0 : fffffffe7fff52f8 [ 0.000000] t1 : 00000027ffffb000 t2 : 5f6b636f6c626d65 s0 : ffffffff80e03d90 [ 0.000000] s1 : 0000000000005cac a0 : fffffffe7fff5350 a1 : 0000000000000000 [ 0.000000] a2 : 0000000000005cac a3 : fffffffe7fffaff8 a4 : 000000000000002c [ 0.000000] a5 : ffffffff805e88c8 a6 : 0000000000005cac a7 : 0000000000000030 [ 0.000000] s2 : fffffffe7fff5350 s3 : ffffffffffffffff s4 : 0000000000000000 [ 0.000000] s5 : ffffffff8062347e s6 : 0000000000000000 s7 : 0000000000000001 [ 0.000000] s8 : 0000000000002000 s9 : 00000000800226d0 s10: 0000000000000000 [ 0.000000] s11: 0000000000000000 t3 : ffffffff8080a928 t4 : ffffffff8080a928 [ 0.000000] t5 : ffffffff8080a928 t6 : ffffffff8080a940 [ 0.000000] status: 0000000200000100 badaddr: fffffffe7fff5350 cause: 000000000000000f [ 0.000000] [<ffffffff805e88c8>] __memset+0x8c/0x104 [ 0.000000] [<ffffffff8062349c>] early_init_dt_alloc_memory_arch+0x1e/0x48 [ 0.000000] [<ffffffff8043e892>] __unflatten_device_tree+0x52/0x114 [ 0.000000] [<ffffffff8062441e>] unflatten_device_tree+0x9e/0xb8 [ 0.000000] [<ffffffff806046fe>] setup_arch+0xd4/0x5bc [ 0.000000] [<ffffffff806007aa>] start_kernel+0x76/0x81a [ 0.000000] Code: b823 02b2 bc23 02b2 b023 04b2 b423 04b2 b823 04b2 (bc23) 04b2 [ 0.000000] ---[ end trace 0000000000000000 ]--- [ 0.000000] Kernel panic - not syncing: Attempted to kill the idle task! [ 0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]--- The problem is that memblock (unaware that some physical memory cannot be used) has allocated memory from the top of memory but which is outside the linear mapping region. Signed-off-by: Stuart Menefy <stuart.menefy@codasip.com> Fixes: c99127c4 ("riscv: Make sure the linear mapping does not use the kernel mapping") Reviewed-by: David McKay <david.mckay@codasip.com> Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com> Link: https://lore.kernel.org/r/20240622114217.2158495-1-stuart.menefy@codasip.comSigned-off-by: Palmer Dabbelt <palmer@rivosinc.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/pci/pciLinus Torvalds authored
Pull PCI fixes from Bjorn Helgaas: - Fix a pci_intx() regression that caused driver reload to fail with "Resources present before probing" (Philipp Stanner) - Fix a pciehp regression that clobbered the upper bits of RAID status LEDs on NVMe devices behind an Intel VMD (Blazej Kucman) * tag 'pci-v6.11-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: PCI: pciehp: Retain Power Indicator bits for userspace indicators PCI: Fix devres regression in pci_intx()
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