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2026-04-18Merge tag 'memblock-v7.1-rc1' of ↵Linus Torvalds1-14/+2
git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock Pull memblock updates from Mike Rapoport: - improve debuggability of reserve_mem kernel parameter handling with print outs in case of a failure and debugfs info showing what was actually reserved - Make memblock_free_late() and free_reserved_area() use the same core logic for freeing the memory to buddy and ensure it takes care of updating memblock arrays when ARCH_KEEP_MEMBLOCK is enabled. * tag 'memblock-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: x86/alternative: delay freeing of smp_locks section memblock: warn when freeing reserved memory before memory map is initialized memblock, treewide: make memblock_free() handle late freeing memblock: make free_reserved_area() update memblock if ARCH_KEEP_MEMBLOCK=y memblock: extract page freeing from free_reserved_area() into a helper memblock: make free_reserved_area() more robust mm: move free_reserved_area() to mm/memblock.c powerpc: opal-core: pair alloc_pages_exact() with free_pages_exact() powerpc: fadump: pair alloc_pages_exact() with free_pages_exact() memblock: reserve_mem: fix end caclulation in reserve_mem_release_by_name() memblock: move reserve_bootmem_range() to memblock.c and make it static memblock: Add reserve_mem debugfs info memblock: Print out errors on reserve_mem parser
2026-04-17Merge tag 'integrity-v7.1' of ↵Linus Torvalds2-7/+7
git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity Pull integrity updates from Mimi Zohar: "There are two main changes, one feature removal, some code cleanup, and a number of bug fixes. Main changes: - Detecting secure boot mode was limited to IMA. Make detecting secure boot mode accessible to EVM and other LSMs - IMA sigv3 support was limited to fsverity. Add IMA sigv3 support for IMA regular file hashes and EVM portable signatures Remove: - Remove IMA support for asychronous hash calculation originally added for hardware acceleration Cleanup: - Remove unnecessary Kconfig CONFIG_MODULE_SIG and CONFIG_KEXEC_SIG tests - Add descriptions of the IMA atomic flags Bug fixes: - Like IMA, properly limit EVM "fix" mode - Define and call evm_fix_hmac() to update security.evm - Fallback to using i_version to detect file change for filesystems that do not support STATX_CHANGE_COOKIE - Address missing kernel support for configured (new) TPM hash algorithms - Add missing crypto_shash_final() return value" * tag 'integrity-v7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity: evm: Enforce signatures version 3 with new EVM policy 'bit 3' integrity: Allow sigv3 verification on EVM_XATTR_PORTABLE_DIGSIG ima: add support to require IMA sigv3 signatures ima: add regular file data hash signature version 3 support ima: Define asymmetric_verify_v3() to verify IMA sigv3 signatures ima: remove buggy support for asynchronous hashes integrity: Eliminate weak definition of arch_get_secureboot() ima: Add code comments to explain IMA iint cache atomic_flags ima_fs: Correctly create securityfs files for unsupported hash algos ima: check return value of crypto_shash_final() in boot aggregate ima: Define and use a digest_size field in the ima_algo_desc structure powerpc/ima: Drop unnecessary check for CONFIG_MODULE_SIG ima: efi: Drop unnecessary check for CONFIG_MODULE_SIG/CONFIG_KEXEC_SIG ima: fallback to using i_version to detect file change evm: fix security.evm for a file with IMA signature s390: Drop unnecessary CONFIG_IMA_SECURE_AND_OR_TRUSTED_BOOT evm: Don't enable fix mode when secure boot is enabled integrity: Make arch_ima_get_secureboot integrity-wide
2026-04-15Merge tag 'pci-v7.1-changes' of ↵Linus Torvalds1-1/+5
git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci Pull pci updates from Bjorn Helgaas: "Enumeration: - Allow TLP Processing Hints to be enabled for RCiEPs (George Abraham P) - Enable AtomicOps only if we know the Root Port supports them (Gerd Bayer) - Don't enable AtomicOps for RCiEPs since none of them need Atomic Ops and we can't tell whether the Root Complex would support them (Gerd Bayer) - Leave Precision Time Measurement disabled until a driver enables it to avoid PCIe errors (Mika Westerberg) - Make pci_set_vga_state() fail if bridge doesn't support VGA routing, i.e., PCI_BRIDGE_CTL_VGA is not writable, and return errors to vga_get() callers including userspace via /dev/vga_arbiter (Simon Richter) - Validate max-link-speed from DT in j721e, brcmstb, mediatek-gen3, rzg3s drivers (where the actual controller constraints are known), and remove validation from the generic OF DT accessor (Hans Zhang) - Remove pc110pad driver (no longer useful after 486 CPU support removed) and no_pci_devices() (pc110pad was the last user) (Dmitry Torokhov, Heiner Kallweit) Resource management: - Prevent assigning space to unimplemented bridge windows; previously we mistakenly assumed prefetchable window existed and assigned space and put a BAR there (Ahmed Naseef) - Avoid shrinking bridge windows to fit in the initial Root Port window; fixes one problem with devices with large BARs connected via switches, e.g., Thunderbolt (Ilpo Järvinen) - Pass full extent of empty space, not just the aligned space, to resource_alignf callback so free space before the requested alignment can be used (Ilpo Järvinen) - Place small resources before larger ones for better utilization of address space (Ilpo Järvinen) - Fix alignment calculation for resource size larger than align, e.g., bridge windows larger than the 1MB required alignment (Ilpo Järvinen) Reset: - Update slot handling so all ARI functions are treated as being in the same slot. They're all reset by Secondary Bus Reset, but previously drivers of ARI functions that appeared to be on a non-zero device weren't notified and fatal hardware errors could result (Keith Busch) - Make sysfs reset_subordinate hotplug safe to avoid spurious hotplug events (Keith Busch) - Hide Secondary Bus Reset ('bus') from sysfs reset_methods if masked by CXL because it has no effect (Vidya Sagar) - Avoid FLR for AMD NPU device, where it causes the device to hang (Lizhi Hou) Error handling: - Clear only error bits in PCIe Device Status to avoid accidentally clearing Emergency Power Reduction Detected (Shuai Xue) - Check for AER errors even in devices without drivers (Lukas Wunner) - Initialize ratelimit info so DPC and EDR paths log AER error information (Kuppuswamy Sathyanarayanan) Power control: - Add UPD720201/UPD720202 USB 3.0 xHCI Host Controller .compatible so generic pwrctrl driver can control it (Neil Armstrong) Hotplug: - Set LED_HW_PLUGGABLE for NPEM hotplug-capable ports so LED core doesn't complain when setting brightness fails because the endpoint is gone (Richard Cheng) Peer-to-peer DMA: - Allow wildcards in list of host bridges that support peer-to-peer DMA between hierarchy domains and add all Google SoCs (Jacob Moroni) Endpoint framework: - Advertise dynamic inbound mapping support in pci-epf-test and update host pci_endpoint_test to skip doorbell testing if not advertised by endpoint (Koichiro Den) - Return 0, not remaining timeout, when MHI eDMA ops complete so mhi_ep_ring_add_element() doesn't interpret non-zero as failure (Daniel Hodges) - Remove vntb and ntb duplicate resource teardown that leads to oops when .allow_link() fails or .drop_link() is called (Koichiro Den) - Disable vntb delayed work before clearing BAR mappings and doorbells to avoid oops caused by doing the work after resources have been torn down (Koichiro Den) - Add a way to describe reserved subregions within BARs, e.g., platform-owned fixed register windows, and use it for the RK3588 BAR4 DMA ctrl window (Koichiro Den) - Add BAR_DISABLED for BARs that will never be available to an EPF driver, and change some BAR_RESERVED annotations to BAR_DISABLED (Niklas Cassel) - Add NTB .get_dma_dev() callback for cases where DMA API requires a different device, e.g., vNTB devices (Koichiro Den) - Add reserved region types for MSI-X Table and PBA so Endpoint controllers can them as describe hardware-owned regions in a BAR_RESERVED BAR (Manikanta Maddireddy) - Make Tegra194/234 BAR0 programmable and remove 1MB size limit (Manikanta Maddireddy) - Expose Tegra BAR2 (MSI-X) and BAR4 (DMA) as 64-bit BAR_RESERVED (Manikanta Maddireddy) - Add Tegra194 and Tegra234 device table entries to pci_endpoint_test (Manikanta Maddireddy) - Skip the BAR subrange selftest if there are not enough inbound window resources to run the test (Christian Bruel) New native PCIe controller drivers: - Add DT binding and driver for Andes QiLai SoC PCIe host controller (Randolph Lin) - Add DT binding and driver for ESWIN PCIe Root Complex (Senchuan Zhang) Baikal T-1 PCIe controller driver: - Remove driver since it never quite became usable (Andy Shevchenko) Cadence PCIe controller driver: - Implement byte/word config reads with dword (32-bit) reads because some Cadence controllers don't support sub-dword accesses (Aksh Garg) CIX Sky1 PCIe controller driver: - Add 'power-domains' to DT binding for SCMI power domain (Gary Yang) Freescale i.MX6 PCIe controller driver: - Add i.MX94 and i.MX943 to fsl,imx6q-pcie-ep DT binding (Richard Zhu) - Delay instead of polling for L2/L3 Ready after PME_Turn_off when suspending i.MX6SX because LTSSM registers are inaccessible (Richard Zhu) - Separate PERST# assertion (for resetting endpoints) from core reset (for resetting the RC itself) to prepare for new DTs with PERST# GPIO in per-Root Port nodes (Sherry Sun) - Retain Root Port MSI capability on i.MX7D, i.MX8MM, and i.MX8MQ so MSI from downstream devices will work (Richard Zhu) - Fix i.MX95 reference clock source selection when internal refclk is used (Franz Schnyder) Freescale Layerscape PCIe controller driver: - Allow building as a removable module (Sascha Hauer) MediaTek PCIe Gen3 controller driver: - Use dev_err_probe() to simplify error paths and make deferred probe messages visible in /sys/kernel/debug/devices_deferred (Chen-Yu Tsai) - Power off device if setup fails (Chen-Yu Tsai) - Integrate new pwrctrl API to enable power control for WiFi/BT adapters on mainboard or in PCIe or M.2 slots (Chen-Yu Tsai) NVIDIA Tegra194 PCIe controller driver: - Poll less aggressively and non-atomically for PME_TO_Ack during transition to L2 (Vidya Sagar) - Disable LTSSM after transition to Detect on surprise link down to stop toggling between Polling and Detect (Manikanta Maddireddy) - Don't force the device into the D0 state before L2 when suspending or shutting down the controller (Vidya Sagar) - Disable PERST# IRQ only in Endpoint mode because it's not registered in Root Port mode (Manikanta Maddireddy) - Handle 'nvidia,refclk-select' as optional (Vidya Sagar) - Disable direct speed change in Endpoint mode so link speed change is controlled by the host (Vidya Sagar) - Set LTR values before link up to avoid bogus LTR messages with 0 latency (Vidya Sagar) - Allow system suspend when the Endpoint link is down (Vidya Sagar) - Use DWC IP core version, not Tegra custom values, to avoid DWC core version check warnings (Manikanta Maddireddy) - Apply ECRC workaround to devices based on DesignWare 5.00a as well as 4.90a (Manikanta Maddireddy) - Disable PM Substate L1.2 in Endpoint mode to work around Tegra234 erratum (Vidya Sagar) - Delay post-PERST# cleanup until core is powered on to avoid CBB timeout (Manikanta Maddireddy) - Assert CLKREQ# so switches that forward it to their downstream side can bring up those links successfully (Vidya Sagar) - Calibrate pipe to UPHY for Endpoint mode to reset stale PLL state from any previous bad link state (Vidya Sagar) - Remove IRQF_ONESHOT flag from Endpoint interrupt registration so DMA driver and Endpoint controller driver can share the interrupt line (Vidya Sagar) - Enable DMA interrupt to support DMA in both Root Port and Endpoint modes (Vidya Sagar) - Enable hardware link retraining after link goes down in Endpoint mode (Vidya Sagar) - Add DT binding and driver support for core clock monitoring (Vidya Sagar) Qualcomm PCIe controller driver: - Advertise 'Hot-Plug Capable' and set 'No Command Completed Support' since Qcom Root Ports support hotplug events like DL_Up/Down and can accept writes to Slot Control without delays between writes (Krishna Chaitanya Chundru) Renesas R-Car PCIe controller driver: - Mark Endpoint BAR0 and BAR2 as Resizable (Koichiro Den) - Reduce EPC BAR alignment requirement to 4K (Koichiro Den) Renesas RZ/G3S PCIe controller driver: - Add RZ/G3E to DT binding and to driver (John Madieu) - Assert (not deassert) resets in probe error path (John Madieu) - Assert resets in suspend path in reverse order they were deasserted during probe (John Madieu) - Rework inbound window algorithm to prevent mapping more than intended region and enforce alignment on size, to prepare for RZ/G3E support (John Madieu) Rockchip DesignWare PCIe controller driver: - Add tracepoints for PCIe controller LTSSM transitions and link rate changes (Shawn Lin) - Trace LTSSM events collected by the dw-rockchip debug FIFO (Shawn Lin) SOPHGO PCIe controller driver: - Disable ASPM L0s and L1 on Sophgo 2042 PCIe Root Ports that advertise support for them (Yao Zi) Synopsys DesignWare PCIe controller driver: - Continue with system suspend even if an Endpoint doesn't respond with PME_TO_Ack message (Manivannan Sadhasivam) - Set Endpoint MSI-X Table Size in the correct function of a multi-function device when configuring MSI-X, not in Function 0 (Aksh Garg) - Set Max Link Width and Max Link Speed for all functions of a multi-function device, not just Function 0 (Aksh Garg) - Expose PCIe event counters in groups 5-7 in debugfs (Hans Zhang) Miscellaneous: - Warn only once about invalid ACS kernel parameter format (Richard Cheng) - Suppress FW_BUG warning when writing sysfs 'numa_node' with the current value (Li RongQing) - Drop redundant 'depends on PCI' from Kconfig (Julian Braha)" * tag 'pci-v7.1-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (165 commits) PCI/P2PDMA: Add Google SoCs to the P2P DMA host bridge list PCI/P2PDMA: Allow wildcard Device IDs in host bridge list PCI: sg2042: Avoid L0s and L1 on Sophgo 2042 PCIe Root Ports PCI: cadence: Add flags for disabling ASPM capability for broken Root Ports PCI: tegra194: Add core monitor clock support dt-bindings: PCI: tegra194: Add monitor clock support PCI: tegra194: Enable hardware hot reset mode in Endpoint mode PCI: tegra194: Enable DMA interrupt PCI: tegra194: Remove IRQF_ONESHOT flag during Endpoint interrupt registration PCI: tegra194: Calibrate pipe to UPHY for Endpoint mode PCI: tegra194: Assert CLKREQ# explicitly by default PCI: tegra194: Fix CBB timeout caused by DBI access before core power-on PCI: tegra194: Disable L1.2 capability of Tegra234 EP PCI: dwc: Apply ECRC workaround to DesignWare 5.00a as well PCI: tegra194: Use DWC IP core version PCI: tegra194: Free up Endpoint resources during remove() PCI: tegra194: Allow system suspend when the Endpoint link is not up PCI: tegra194: Set LTR message request before PCIe link up in Endpoint mode PCI: tegra194: Disable direct speed change for Endpoint mode PCI: tegra194: Use devm_gpiod_get_optional() to parse "nvidia,refclk-select" ...
2026-04-14Merge tag 'powerpc-7.1-1' of ↵Linus Torvalds7-214/+70
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Madhavan Srinivasan: - powerpc support for huge pfnmaps - Cleanups to use masked user access - Rework pnv_ioda_pick_m64_pe() to use better bitmap API - Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC - Backup region offset update to eflcorehdr - Fixes for wii/ps3 platform - Implement JIT support for private stack in powerpc - Implement JIT support for fsession in powerpc64 trampoline - Add support for instruction array and indirect jump in powerpc - Misc selftest fixes and cleanups Thanks to Abhishek Dubey, Aditya Gupta, Alex Williamson, Amit Machhiwal, Andrew Donnellan, Bartosz Golaszewski, Cédric Le Goater, Chen Ni, Christophe Leroy (CS GROUP), Hari Bathini, J. Neuschäfer, Mukesh Kumar Chaurasiya (IBM), Nam Cao, Nilay Shroff, Pavithra Prakash, Randy Dunlap, Ritesh Harjani (IBM), Shrikanth Hegde, Sourabh Jain, Vaibhav Jain, Venkat Rao Bagalkote, and Yury Norov (NVIDIA) * tag 'powerpc-7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (47 commits) mailmap: Add entry for Andrew Donnellan powerpc32/bpf: fix loading fsession func metadata using PPC_LI32 selftest/bpf: Enable gotox tests for powerpc64 powerpc64/bpf: Add support for indirect jump selftest/bpf: Enable instruction array test for powerpc powerpc/bpf: Add support for instruction array powerpc32/bpf: Add fsession support powerpc64/bpf: Implement fsession support selftests/bpf: Enable private stack tests for powerpc64 powerpc64/bpf: Implement JIT support for private stack powerpc: pci-ioda: Optimize pnv_ioda_pick_m64_pe() powerpc: pci-ioda: use bitmap_alloc() in pnv_ioda_pick_m64_pe() powerpc/net: Inline checksum wrappers and convert to scoped user access powerpc/sstep: Convert to scoped user access powerpc/align: Convert emulate_spe() to scoped user access powerpc/ptrace: Convert gpr32_set_common_user() to scoped user access powerpc/futex: Use masked user access powerpc/audit: Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC cpuidle: powerpc: avoid double clear when breaking snooze powerpc/ps3: spu.c: fix enum and Return kernel-doc warnings ...
2026-04-14Merge tag 'timers-vdso-2026-04-12' of ↵Linus Torvalds1-2/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull vdso updates from Thomas Gleixner: - Make the handling of compat functions consistent and more robust - Rework the underlying data store so that it is dynamically allocated, which allows the conversion of the last holdout SPARC64 to the generic VDSO implementation - Rework the SPARC64 VDSO to utilize the generic implementation - Mop up the left overs of the non-generic VDSO support in the core code - Expand the VDSO selftest and make them more robust - Allow time namespaces to be enabled independently of the generic VDSO support, which was not possible before due to SPARC64 not using it - Various cleanups and improvements in the related code * tag 'timers-vdso-2026-04-12' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (51 commits) timens: Use task_lock guard in timens_get*() timens: Use mutex guard in proc_timens_set_offset() timens: Simplify some calls to put_time_ns() timens: Add a __free() wrapper for put_time_ns() timens: Remove dependency on the vDSO vdso/timens: Move functions to new file selftests: vDSO: vdso_test_correctness: Add a test for time() selftests: vDSO: vdso_test_correctness: Use facilities from parse_vdso.c selftests: vDSO: vdso_test_correctness: Handle different tv_usec types selftests: vDSO: vdso_test_correctness: Drop SYS_getcpu fallbacks selftests: vDSO: vdso_test_gettimeofday: Remove nolibc checks Revert "selftests: vDSO: parse_vdso: Use UAPI headers instead of libc headers" random: vDSO: Remove ifdeffery random: vDSO: Trim vDSO includes vdso/datapage: Trim down unnecessary includes vdso/datapage: Remove inclusion of gettimeofday.h vdso/helpers: Explicitly include vdso/processor.h vdso/gettimeofday: Add explicit includes random: vDSO: Add explicit includes MIPS: vdso: Explicitly include asm/vdso/vdso.h ...
2026-04-13Merge tag 'hardening-v7.1-rc1' of ↵Linus Torvalds1-14/+2
git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardening updates from Kees Cook: - randomize_kstack: Improve implementation across arches (Ryan Roberts) - lkdtm/fortify: Drop unneeded FORTIFY_STR_OBJECT test - refcount: Remove unused __signed_wrap function annotations * tag 'hardening-v7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: lkdtm/fortify: Drop unneeded FORTIFY_STR_OBJECT test refcount: Remove unused __signed_wrap function annotations randomize_kstack: Unify random source across arches randomize_kstack: Maintain kstack_offset per task
2026-04-13Merge tag 'vfs-7.1-rc1.misc' of ↵Linus Torvalds1-1/+1
git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs Pull misc vfs updates from Christian Brauner: "Features: - coredump: add tracepoint for coredump events - fs: hide file and bfile caches behind runtime const machinery Fixes: - fix architecture-specific compat_ftruncate64 implementations - dcache: Limit the minimal number of bucket to two - fs/omfs: reject s_sys_blocksize smaller than OMFS_DIR_START - fs/mbcache: cancel shrink work before destroying the cache - dcache: permit dynamic_dname()s up to NAME_MAX Cleanups: - remove or unexport unused fs_context infrastructure - trivial ->setattr cleanups - selftests/filesystems: Assume that TIOCGPTPEER is defined - writeback: fix kernel-doc function name mismatch for wb_put_many() - autofs: replace manual symlink buffer allocation in autofs_dir_symlink - init/initramfs.c: trivial fix: FSM -> Finite-state machine - fs: remove stale and duplicate forward declarations - readdir: Introduce dirent_size() - fs: Replace user_access_{begin/end} by scoped user access - kernel: acct: fix duplicate word in comment - fs: write a better comment in step_into() concerning .mnt assignment - fs: attr: fix comment formatting and spelling issues" * tag 'vfs-7.1-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (28 commits) dcache: permit dynamic_dname()s up to NAME_MAX fs: attr: fix comment formatting and spelling issues fs: hide file and bfile caches behind runtime const machinery fs: write a better comment in step_into() concerning .mnt assignment proc: rename proc_notify_change to proc_setattr proc: rename proc_setattr to proc_nochmod_setattr affs: rename affs_notify_change to affs_setattr adfs: rename adfs_notify_change to adfs_setattr hfs: update comments on hfs_inode_setattr kernel: acct: fix duplicate word in comment fs: Replace user_access_{begin/end} by scoped user access readdir: Introduce dirent_size() coredump: add tracepoint for coredump events fs: remove do_sys_truncate fs: pass on FTRUNCATE_* flags to do_truncate fs: fix archiecture-specific compat_ftruncate64 fs: remove stale and duplicate forward declarations init/initramfs.c: trivial fix: FSM -> Finite-state machine autofs: replace manual symlink buffer allocation in autofs_dir_symlink fs/mbcache: cancel shrink work before destroying the cache ...
2026-04-01powerpc/powernv/iommu: iommu incorrectly bypass DMA APIsGaurav Batra1-2/+2
In a PowerNV environment, for devices that supports DMA mask less than 64 bit but larger than 32 bits, iommu is incorrectly bypassing DMA APIs while allocating and mapping buffers for DMA operations. Devices are failing with ENOMEN during probe with the following messages amdgpu 0000:01:00.0: [drm] Detected VRAM RAM=4096M, BAR=4096M amdgpu 0000:01:00.0: [drm] RAM width 128bits GDDR5 amdgpu 0000:01:00.0: iommu: 64-bit OK but direct DMA is limited by 0 amdgpu 0000:01:00.0: dma_iommu_get_required_mask: returning bypass mask 0xfffffffffffffff amdgpu 0000:01:00.0: 4096M of VRAM memory ready amdgpu 0000:01:00.0: 32570M of GTT memory ready. amdgpu 0000:01:00.0: (-12) failed to allocate kernel bo amdgpu 0000:01:00.0: [drm] Debug VRAM access will use slowpath MM access amdgpu 0000:01:00.0: [drm] GART: num cpu pages 4096, num gpu pages 65536 amdgpu 0000:01:00.0: [drm] PCIE GART of 256M enabled (table at 0x000000F4FFF80000). amdgpu 0000:01:00.0: (-12) failed to allocate kernel bo amdgpu 0000:01:00.0: (-12) create WB bo failed amdgpu 0000:01:00.0: amdgpu_device_wb_init failed -12 amdgpu 0000:01:00.0: amdgpu_device_ip_init failed amdgpu 0000:01:00.0: Fatal error during GPU init amdgpu 0000:01:00.0: finishing device. amdgpu 0000:01:00.0: probe with driver amdgpu failed with error -12 amdgpu 0000:01:00.0: ttm finalized Fixes: 1471c517cf7d ("powerpc/iommu: bypass DMA APIs for coherent allocations for pre-mapped memory") Suggested-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Reported-by: Dan Horák <dan@danny.cz> Closes: https://gitlab.freedesktop.org/drm/amd/-/work_items/5039 Tested-by: Dan Horak <dan@danny.cz> Closes: https://lore.kernel.org/linuxppc-dev/20260313142351.609bc4c3efe1184f64ca5f44@danny.cz/ Signed-off-by: Gaurav Batra <gbatra@linux.ibm.com> Closes: https://lore.kernel.org/linuxppc-dev/20260313142351.609bc4c3efe1184f64ca5f44@danny.cz/ [Maddy: Fixed tags] Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20260331223022.47488-1-gbatra@linux.ibm.com
2026-04-01powerpc: fadump: pair alloc_pages_exact() with free_pages_exact()Mike Rapoport (Microsoft)1-14/+2
fadump allocates buffers with alloc_pages_exact(), but then marks them as reserved and frees using free_reserved_area(). This is completely unnecessary and the pages allocated with alloc_pages_exact() can be naturally freed with free_pages_exact(). Replace freeing of memory in fadump_free_buffer() with free_pages_exact() and simplify allocation code so that it won't mark allocated pages as reserved. Link: https://patch.msgid.link/20260323074836.3653702-3-rppt@kernel.org Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
2026-04-01powerpc/align: Convert emulate_spe() to scoped user accessChristophe Leroy (CS GROUP)1-42/+33
Commit 861574d51bbd ("powerpc/uaccess: Implement masked user access") provides optimised user access by avoiding the cost of access_ok(). Convert emulate_spe() to scoped user access to benefit from masked user access. Scoped user access also make the code simpler. Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/4ff83cb240da4e2d0c34e2bce4b8b6ef19a33777.1773136880.git.chleroy@kernel.org
2026-04-01powerpc/ptrace: Convert gpr32_set_common_user() to scoped user accessChristophe Leroy (CS GROUP)1-33/+31
Commit 861574d51bbd ("powerpc/uaccess: Implement masked user access") provides optimised user access by avoiding the cost of access_ok(). Convert gpr32_set_common_user() to scoped user access to benefit from masked user access. Scoped user access also make the code simpler. Also changes label from Efault to efault to avoid checkpatch complaining about CamelCase. Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/2409643daab08b4bc07004c2b88f42085d1ef45a.1773136838.git.chleroy@kernel.org
2026-04-01powerpc/audit: Convert powerpc to AUDIT_ARCH_COMPAT_GENERICChristophe Leroy3-139/+0
Commit e65e1fc2d24b ("[PATCH] syscall class hookup for all normal targets") added generic support for AUDIT but that didn't include support for bi-arch like powerpc. Commit 4b58841149dc ("audit: Add generic compat syscall support") added generic support for bi-arch. Convert powerpc to that bi-arch generic audit support. With this change generated text is similar. Thomas has confirmed that the previously failing filter_exclude/test is now successful both without and with this patch, see [1] [1] https://lore.kernel.org/all/20260306115350-ef265661-6d6b-4043-9bd0-8e6b437d0d67@linutronix.de/ Link: https://github.com/linuxppc/issues/issues/412 Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/261b1be5b8dc526b83d73e8281e682a73536ea28.1773155031.git.chleroy@kernel.org
2026-04-01powerpc: kgdb: fix kernel-doc warningsRandy Dunlap1-1/+2
Remove empty comment line at the beginning of a kernel-doc function block. Add a "Return:" section for this function. These changes prevent 2 kernel-doc warnings: Warning: ../arch/powerpc/kernel/kgdb.c:103 Cannot find identifier on line: * Warning: kgdb.c:113 No description found for return value of 'kgdb_skipexception' Fixes: 949616cf2d30 ("powerpc/kgdb: Bail out of KGDB when we've been triggered") Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20260225055314.247966-1-rdunlap@infradead.org
2026-03-27PCI: Align head space betterIlpo Järvinen1-0/+2
When a bridge window contains big and small resource(s), the small resource(s) may not amount to the half of the size of the big resource which would allow calculate_head_align() to shrink the head alignment. This results in always placing the small resource(s) after the big resource. In general, it would be good to be able to place the small resource(s) before the big resource to achieve better utilization of the address space. In the cases where the large resource can only fit at the end of the window, it is even required. However, carrying the information over from pbus_size_mem() and calculate_head_align() to __pci_assign_resource() and pcibios_align_resource() is not easy with the current data structures. A somewhat hacky way to move the non-aligning tail part to the head is possible within pcibios_align_resource(). The free space between the start of the free space span and the aligned start address can be compared with the non-aligning remainder of the size. If the free space is larger than the remainder, placing the remainder before the start address is possible. This relocation should generally work, because PCI resources consist only power-of-2 atoms. Various arch requirements may still need to override the relocation, so the relocation is only applied selectively in such cases. Closes: https://bugzilla.kernel.org/show_bug.cgi?id=221205 Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Xifer <xiferdev@gmail.com> Link: https://patch.msgid.link/20260324165633.4583-10-ilpo.jarvinen@linux.intel.com
2026-03-27resource: Pass full extent of empty space to resource_alignf callbackIlpo Järvinen1-1/+3
__find_resource_space() calculates the full extent of empty space but only passes the aligned space to resource_alignf callback. In some situations, the callback may choose take advantage of the free space before the requested alignment. Pass the full extent of the calculated empty space to resource_alignf callback as an additional parameter. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Tested-by: Xifer <xiferdev@gmail.com> Link: https://patch.msgid.link/20260324165633.4583-3-ilpo.jarvinen@linux.intel.com
2026-03-24randomize_kstack: Unify random source across archesRyan Roberts1-14/+2
Previously different architectures were using random sources of differing strength and cost to decide the random kstack offset. A number of architectures (loongarch, powerpc, s390, x86) were using their timestamp counter, at whatever the frequency happened to be. Other arches (arm64, riscv) were using entropy from the crng via get_random_u16(). There have been concerns that in some cases the timestamp counters may be too weak, because they can be easily guessed or influenced by user space. And get_random_u16() has been shown to be too costly for the level of protection kstack offset randomization provides. So let's use a common, architecture-agnostic source of entropy; a per-cpu prng, seeded at boot-time from the crng. This has a few benefits: - We can remove choose_random_kstack_offset(); That was only there to try to make the timestamp counter value a bit harder to influence from user space [*]. - The architecture code is simplified. All it has to do now is call add_random_kstack_offset() in the syscall path. - The strength of the randomness can be reasoned about independently of the architecture. - Arches previously using get_random_u16() now have much faster syscall paths, see below results. [*] Additionally, this gets rid of some redundant work on s390 and x86. Before this patch, those architectures called choose_random_kstack_offset() under arch_exit_to_user_mode_prepare(), which is also called for exception returns to userspace which were *not* syscalls (e.g. regular interrupts). Getting rid of choose_random_kstack_offset() avoids a small amount of redundant work for the non-syscall cases. In some configurations, add_random_kstack_offset() will now call instrumentable code, so for a couple of arches, I have moved the call a bit later to the first point where instrumentation is allowed. This doesn't impact the efficacy of the mechanism. There have been some claims that a prng may be less strong than the timestamp counter if not regularly reseeded. But the prng has a period of about 2^113. So as long as the prng state remains secret, it should not be possible to guess. If the prng state can be accessed, we have bigger problems. Additionally, we are only consuming 6 bits to randomize the stack, so there are only 64 possible random offsets. I assert that it would be trivial for an attacker to brute force by repeating their attack and waiting for the random stack offset to be the desired one. The prng approach seems entirely proportional to this level of protection. Performance data are provided below. The baseline is v6.18 with rndstack on for each respective arch. (I)/(R) indicate statistically significant improvement/regression. arm64 platform is AWS Graviton3 (m7g.metal). x86_64 platform is AWS Sapphire Rapids (m7i.24xlarge): +-----------------+--------------+---------------+---------------+ | Benchmark | Result Class | per-cpu-prng | per-cpu-prng | | | | arm64 (metal) | x86_64 (VM) | +=================+==============+===============+===============+ | syscall/getpid | mean (ns) | (I) -9.50% | (I) -17.65% | | | p99 (ns) | (I) -59.24% | (I) -24.41% | | | p99.9 (ns) | (I) -59.52% | (I) -28.52% | +-----------------+--------------+---------------+---------------+ | syscall/getppid | mean (ns) | (I) -9.52% | (I) -19.24% | | | p99 (ns) | (I) -59.25% | (I) -25.03% | | | p99.9 (ns) | (I) -59.50% | (I) -28.17% | +-----------------+--------------+---------------+---------------+ | syscall/invalid | mean (ns) | (I) -10.31% | (I) -18.56% | | | p99 (ns) | (I) -60.79% | (I) -20.06% | | | p99.9 (ns) | (I) -61.04% | (I) -25.04% | +-----------------+--------------+---------------+---------------+ I tested an earlier version of this change on x86 bare metal and it showed a smaller but still significant improvement. The bare metal system wasn't available this time around so testing was done in a VM instance. I'm guessing the cost of rdtsc is higher for VMs. Acked-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Ryan Roberts <ryan.roberts@arm.com> Link: https://patch.msgid.link/20260303150840.3789438-3-ryan.roberts@arm.com Signed-off-by: Kees Cook <kees@kernel.org>
2026-03-23fs: fix archiecture-specific compat_ftruncate64Christoph Hellwig1-1/+1
The "small" argument to do_sys_ftruncate indicates if > 32-bit size should be reject, but all the arch-specific compat ftruncate64 implementations get this wrong. Merge do_sys_ftruncate and ksys_ftruncate, replace the integer as boolean small flag with a descriptive one about LFS semantics, and use it correctly in the architecture-specific ftruncate64 implementations. Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2") Fixes: 3dd681d944f6 ("arm64: 32-bit (compat) applications support") Signed-off-by: Christoph Hellwig <hch@lst.de> Link: https://patch.msgid.link/20260323070205.2939118-2-hch@lst.de Reviewed-by: Jan Kara <jack@suse.cz> Signed-off-by: Christian Brauner <brauner@kernel.org>
2026-03-17powerpc: Print MMU_FTRS_POSSIBLE & MMU_FTRS_ALWAYS at startupRitesh Harjani (IBM)1-0/+4
Similar to CPU_FTRS_[POSSIBLE|ALWAYS], let's also print MMU_FTRS_[POSSIBLE|ALWAYS]. This has some useful data to capture during bootup. Reviewed-by: Christophe Leroy (CS GROUP) <chleroy@kernel.org> Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/c37a9f314a723048d25aa5424f7ede8eec691d86.1773078178.git.ritesh.list@gmail.com
2026-03-15Merge tag 'powerpc-7.0-3' of ↵Linus Torvalds2-11/+1
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Madhavan Srinivasan: - Fix KUAP warning in VMX usercopy path - Fix lockdep warning during PCI enumeration - Fix to move CMA reservations to arch_mm_preinit - Fix to check current->mm is alive before getting user callchain Thanks to Aboorva Devarajan, Christophe Leroy (CS GROUP), Dan Horák, Nicolin Chen, Nilay Shroff, Qiao Zhao, Ritesh Harjani (IBM), Saket Kumar Bhaskar, Sayali Patil, Shrikanth Hegde, Venkat Rao Bagalkote, and Viktor Malik. * tag 'powerpc-7.0-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/iommu: fix lockdep warning during PCI enumeration powerpc/selftests/copyloops: extend selftest to exercise __copy_tofrom_user_power7_vmx powerpc: fix KUAP warning in VMX usercopy path powerpc, perf: Check that current->mm is alive before getting user callchain powerpc/mem: Move CMA reservations to arch_mm_preinit
2026-03-13powerpc/iommu: fix lockdep warning during PCI enumerationNilay Shroff1-1/+1
Commit a75b2be249d6 ("iommu: Add iommu_driver_get_domain_for_dev() helper") introduced iommu_driver_get_domain_for_dev() for driver code paths that hold iommu_group->mutex while attaching a device to an IOMMU domain. The same commit also added a lockdep assertion in iommu_get_domain_for_dev() to ensure that callers do not hold iommu_group->mutex when invoking it. On powerpc platforms, when PCI device ownership is switched from BLOCKED to the PLATFORM domain, the attach callback spapr_tce_platform_iommu_attach_dev() still calls iommu_get_domain_for_dev(). This happens while iommu_group->mutex is held during domain switching, which triggers the lockdep warning below during PCI enumeration: WARNING: drivers/iommu/iommu.c:2252 at iommu_get_domain_for_dev+0x38/0x80, CPU#2: swapper/0/1 Modules linked in: CPU: 2 UID: 0 PID: 1 Comm: swapper/0 Not tainted 7.0.0-rc2+ #35 PREEMPT Hardware name: IBM,9105-22A Power11 (architected) 0x820200 0xf000007 of:IBM,FW1120.00 (RB1120_115) hv:phyp pSeries NIP: c000000000c244c4 LR: c00000000005b5a4 CTR: c00000000005b578 REGS: c00000000a7bf280 TRAP: 0700 Not tainted (7.0.0-rc2+) MSR: 8000000002029033 <SF,VEC,EE,ME,IR,DR,RI,LE> CR: 22004422 XER: 0000000a CFAR: c000000000c24508 IRQMASK: 0 GPR00: c00000000005b5a4 c00000000a7bf520 c000000001dc8100 0000000000000001 GPR04: c00000000f972f10 0000000000000000 0000000000000000 0000000000000001 GPR08: 0000001ffbc60000 0000000000000001 0000000000000000 0000000000000000 GPR12: c00000000005b578 c000001fffffe480 c000000000011618 0000000000000000 GPR16: 0000000000000000 0000000000000000 0000000000000000 0000000000000000 GPR20: ffffffffffffefff 0000000000000000 c000000002d30eb0 0000000000000001 GPR24: c0000000017881f8 0000000000000000 0000000000000001 c00000000f972e00 GPR28: c00000000bbba0d0 0000000000000000 c00000000bbba0d0 c00000000f972e00 NIP [c000000000c244c4] iommu_get_domain_for_dev+0x38/0x80 LR [c00000000005b5a4] spapr_tce_platform_iommu_attach_dev+0x2c/0x98 Call Trace: iommu_get_domain_for_dev+0x68/0x80 (unreliable) spapr_tce_platform_iommu_attach_dev+0x2c/0x98 __iommu_attach_device+0x44/0x220 __iommu_device_set_domain+0xf4/0x194 __iommu_group_set_domain_internal+0xec/0x228 iommu_setup_default_domain+0x5f4/0x6a4 __iommu_probe_device+0x674/0x724 iommu_probe_device+0x50/0xb4 iommu_add_device+0x48/0x198 pci_dma_dev_setup_pSeriesLP+0x198/0x4f0 pcibios_bus_add_device+0x80/0x464 pci_bus_add_device+0x40/0x100 pci_bus_add_devices+0x54/0xb0 pcibios_init+0xd8/0x140 do_one_initcall+0x8c/0x598 kernel_init_freeable+0x3ec/0x850 kernel_init+0x34/0x270 ret_from_kernel_user_thread+0x14/0x1c Fix this by using iommu_driver_get_domain_for_dev() instead of iommu_get_domain_for_dev() in spapr_tce_platform_iommu_attach_dev(), which is the appropriate helper for callers holding the group mutex. Cc: stable@vger.kernel.org Fixes: a75b2be249d6 ("iommu: Add iommu_driver_get_domain_for_dev() helper") Closes: https://patchwork.ozlabs.org/project/linuxppc-dev/patch/d5c834ff-4c95-44dd-8bef-57242d63aeee@linux.ibm.com/ Signed-off-by: Nilay Shroff <nilay@linux.ibm.com> Reviewed-by: Nicolin Chen <nicolinc@nvidia.com> Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com> [Maddy: Added Closes, tested and reviewed by tags] Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20260310082129.3630996-1-nilay@linux.ibm.com
2026-03-12powerpc/mem: Move CMA reservations to arch_mm_preinitRitesh Harjani (IBM)1-10/+0
commit 4267739cabb8 ("arch, mm: consolidate initialization of SPARSE memory model"), changed the initialization order of "pageblock_order" from... start_kernel() - setup_arch() - initmem_init() - sparse_init() - set_pageblock_order(); // this sets the pageblock_order - xxx_cma_reserve(); to... start_kernel() - setup_arch() - xxx_cma_reserve(); - mm_core_init_early() - free_area_init() - sparse_init() - set_pageblock_order() // this sets the pageblock_order. So this means, pageblock_order is not initialized before these cma reservation function calls, hence we are seeing CMA failures like... [ 0.000000] kvm_cma_reserve: reserving 3276 MiB for global area [ 0.000000] cma: pageblock_order not yet initialized. Called during early boot? [ 0.000000] cma: Failed to reserve 3276 MiB .... [ 0.000000][ T0] cma: pageblock_order not yet initialized. Called during early boot? [ 0.000000][ T0] cma: Failed to reserve 1024 MiB This patch moves these CMA reservations to arch_mm_preinit() which happens in mm_core_init() (which happens after pageblock_order is initialized), but before the memblock moves the free memory to buddy. Fixes: 4267739cabb8 ("arch, mm: consolidate initialization of SPARSE memory model") Suggested-by: Mike Rapoport <rppt@kernel.org> Reported-and-tested-by: Sourabh Jain <sourabhjain@linux.ibm.com> Closes: https://lore.kernel.org/linuxppc-dev/4c338a29-d190-44f3-8874-6cfa0a031f0b@linux.ibm.com/ Signed-off-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com> Tested-by: Dan Horák <dan@danny.cz> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/6e532cf0db5be99afbe20eed699163d5e86cd71f.1772303986.git.ritesh.list@gmail.com
2026-03-11Merge tag 'powerpc-7.0-2' of ↵Linus Torvalds3-50/+25
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fixes from Madhavan Srinivasan: - Correct MSI allocation tracking - Always use 64 bits PTE for powerpc/e500 - Fix inline assembly for clang build on PPC32 - Fixes for clang build issues in powerpc64/ftrace - Fixes for powerpc64/bpf JIT and tailcall support - Cleanup MPC83XX devicetrees - Fix keymile vendor prefix - Fix to use big-endian types for crash variables Thanks to Abhishek Dubey, Christophe Leroy (CS GROUP), Hari Bathini, Heiko Schocher, J. Neuschäfer, Mahesh Salgaonkar, Nam Cao, Nilay Shroff, Rob Herring (Arm), Saket Kumar Bhaskar, Sourabh Jain, Stan Johnson, and Venkat Rao Bagalkote. * tag 'powerpc-7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (23 commits) powerpc/pseries: Correct MSI allocation tracking powerpc: dts: mpc83xx: Add unit addresses to /memory powerpc: dts: mpc8315erdb: Add missing #cells properties to SPI bus powerpc: dts: mpc8315erdb: Rename LED nodes to comply with schema powerpc: dts: mpc8315erdb: Use IRQ_TYPE_* macros powerpc: dts: mpc8313erdb: Use IRQ_TYPE_* macros powerpc: 83xx: km83xx: Fix keymile vendor prefix dt-bindings: powerpc: Add Freescale/NXP MPC83xx SoCs powerpc64/bpf: fix kfunc call support powerpc64/bpf: fix handling of BPF stack in exception callback powerpc64/bpf: remove BPF redzone protection in trampoline stack powerpc64/bpf: use consistent tailcall offset in trampoline powerpc64/bpf: fix the address returned by bpf_get_func_ip powerpc64/bpf: do not increment tailcall count when prog is NULL powerpc64/ftrace: workaround clang recording GEP in __patchable_function_entries powerpc64/ftrace: fix OOL stub count with clang powerpc64: make clang cross-build friendly powerpc/crash: adjust the elfcorehdr size powerpc/kexec/core: use big-endian types for crash variables powerpc/prom_init: Fixup missing #size-cells on PowerMac media-bay nodes ...
2026-03-11powerpc/audit: Directly include unistd_32.h from compat_audit.cThomas Weißschuh1-2/+1
This source file undefines '__powerpc64__' to get the 32-bit system call numbers from asm/unistd.h. However this symbol is also evaluated by other headers, among them is asm/bitsperlong.h. The undefinition leads to an inconsistency between __BITS_PER_LONG and the C type 'long'. An upcoming consistency check will be tripped by this. Directly include asm/unistd_32.h to get access to the 32-bit system call numbers instead. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@kernel.org> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Link: https://patch.msgid.link/20260302-vdso-compat-checkflags-v2-4-78e55baa58ba@linutronix.de
2026-03-08powerpc/ima: Drop unnecessary check for CONFIG_MODULE_SIGThomas Weißschuh1-2/+1
When CONFIG_MODULE_SIG is disabled set_module_sig_enforced() is defined as an empty stub, so the check is unnecessary. Signed-off-by: Thomas Weißschuh <linux@weissschuh.net> Reviewed-by: Mimi Zohar <zohar@linux.ibm.com> Reviewed-by: Aaron Tomlin <atomlin@atomlin.com> Reviewed-by: Nicolas Schier <nsc@kernel.org> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
2026-03-07powerpc64/ftrace: workaround clang recording GEP in __patchable_function_entriesHari Bathini1-4/+22
Support for -fpatchable-function-entry on ppc64le was added in Clang with [1]. However, when no prefix NOPs are specified - as is the case with CONFIG_PPC_FTRACE_OUT_OF_LINE - the first NOP is emitted at LEP, but Clang records the Global Entry Point (GEP) unlike GCC which does record the Local Entry Point (LEP). Issue [2] has been raised to align Clang's behavior with GCC. As a temporary workaround to ensure ftrace initialization works as expected with Clang, derive the LEP using ppc_function_entry() for kernel symbols and by looking for the below module GEP sequence for module addresses, until [2] is resolved: ld r2, -8(r12) add r2, r2, r12 [1] https://github.com/llvm/llvm-project/pull/151569 [2] https://github.com/llvm/llvm-project/issues/163706 Signed-off-by: Hari Bathini <hbathini@linux.ibm.com> Tested-by: Venkat Rao Bagalkote <venkat88@linux.ibm.com> Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com> Link: https://patch.msgid.link/20260127084926.34497-4-hbathini@linux.ibm.com
2026-03-06Merge tag 'kbuild-fixes-7.0-2' of ↵Linus Torvalds1-0/+1
git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux Pull Kbuild fixes from Nathan Chancellor: - Split out .modinfo section from ELF_DETAILS macro, as that macro may be used in other areas that expect to discard .modinfo, breaking certain image layouts - Adjust genksyms parser to handle optional attributes in certain declarations, necessary after commit 07919126ecfc ("netfilter: annotate NAT helper hook pointers with __rcu") - Include resolve_btfids in external module build created by scripts/package/install-extmod-build when it may be run on external modules - Avoid removing objtool binary with 'make clean', as it is required for external module builds * tag 'kbuild-fixes-7.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: kbuild: Leave objtool binary around with 'make clean' kbuild: install-extmod-build: Package resolve_btfids if necessary genksyms: Fix parsing a declarator with a preceding attribute kbuild: Split .modinfo out from ELF_DETAILS
2026-03-05integrity: Make arch_ima_get_secureboot integrity-wideCoiby Xu2-5/+6
EVM and other LSMs need the ability to query the secure boot status of the system, without directly calling the IMA arch_ima_get_secureboot function. Refactor the secure boot status check into a general function named arch_get_secureboot. Reported-and-suggested-by: Mimi Zohar <zohar@linux.ibm.com> Suggested-by: Roberto Sassu <roberto.sassu@huawei.com> Signed-off-by: Coiby Xu <coxu@redhat.com> Acked-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
2026-03-04powerpc/prom_init: Fixup missing #size-cells on PowerMac media-bay nodesRob Herring (Arm)1-1/+2
Similar to other PowerMac mac-io devices, the media-bay node is missing the "#size-cells" property. Depends-on: commit 045b14ca5c36 ("of: WARN on deprecated #a