linux/drivers/acpi, branch v6.17

Merge tag 'riscv-for-linus-6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

2025-09-07T15:15:56Z

Pull RISC-V fixes from Paul Walmsley: - LTO fix for clang when building with CONFIG_CMODEL_MEDLOW - Fix for ACPI CPPC CSR read/write return values - Several fixes for incorrect access widths in thread_info.cpu reads - Fix an issue in __put_user_nocheck() that was causing the glibc tst-socket-timestamp test to fail - Initialize struct kexec_buf records in several kexec-related functions, which were generating UBSAN warnings - Two fixes for sparse warnings * tag 'riscv-for-linus-6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: Fix sparse warning about different address spaces riscv: Fix sparse warning in __get_user_error() riscv: kexec: Initialize kexec_buf struct riscv: use lw when reading int cpu in asm_per_cpu riscv, bpf: use lw when reading int cpu in bpf_get_smp_processor_id riscv, bpf: use lw when reading int cpu in BPF_MOV64_PERCPU_REG riscv: uaccess: fix __put_user_nocheck for unaligned accesses riscv: use lw when reading int cpu in new_vmalloc_check ACPI: RISC-V: Fix FFH_CPPC_CSR error handling riscv: Only allow LTO with CMODEL_MEDANY

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

2025-09-05T20:11:10Z

Pull arm64 fixes from Catalin Marinas: - Incorrect __BITS_PER_LONG as 64 when compiling the compat vDSO - Unreachable PLT for ftrace_caller() in a module's .init.text following past reworking of the module VA range selection - Memory leak in the ACPI iort_rmr_alloc_sids() after a failed krealloc_array() * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: ftrace: fix unreachable PLT for ftrace_caller in init_module with CONFIG_DYNAMIC_FTRACE ACPI/IORT: Fix memory leak in iort_rmr_alloc_sids() arm64: uapi: Provide correct __BITS_PER_LONG for the compat vDSO

ACPI: RISC-V: Fix FFH_CPPC_CSR error handling

2025-09-04T22:25:50Z

The cppc_ffh_csr_read() and cppc_ffh_csr_write() returns Linux error code in "data->ret.error" so cpc_read_ffh() and cpc_write_ffh() must not use sbi_err_map_linux_errno() for FFH_CPPC_CSR. Fixes: 30f3ffbee86b ("ACPI: RISC-V: Add CPPC driver") Signed-off-by: Anup Patel Reviewed-by: Andrew Jones Reviewed-by: Troy Mitchell Reviewed-by: Sunil V L Reviewed-by: Nutty Liu Reviewed-by: Atish Patra Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20250818143600.894385-2-apatel@ventanamicro.com Signed-off-by: Paul Walmsley

ACPI/IORT: Fix memory leak in iort_rmr_alloc_sids()

2025-09-04T16:00:01Z

If krealloc_array() fails in iort_rmr_alloc_sids(), the function returns NULL but does not free the original 'sids' allocation. This results in a memory leak since the caller overwrites the original pointer with the NULL return value. Fixes: 491cf4a6735a ("ACPI/IORT: Add support to retrieve IORT RMR reserved regions") Cc: # 6.0.x Signed-off-by: Miaoqian Lin Reviewed-by: Hanjun Guo Link: https://lore.kernel.org/r/20250828112243.61460-1-linmq006@gmail.com Signed-off-by: Catalin Marinas

Merge branches 'acpi-apei' and 'acpi-pfrut'

2025-08-21T18:47:23Z

Merge ACPI APEI fixes and an ACPI platform firmware runtime update fix for 6.17-rc3. * acpi-apei: ACPI: APEI: EINJ: Fix resource leak by remove callback in .exit.text ACPI: APEI: EINJ: fix potential NULL dereference in __einj_error_inject() ACPI: APEI: EINJ: Check if user asked for EINJV2 injection * acpi-pfrut: ACPI: pfr_update: Fix the driver update version check

ACPI: pfr_update: Fix the driver update version check

2025-08-20T13:30:36Z

The security-version-number check should be used rather than the runtime version check for driver updates. Otherwise, the firmware update would fail when the update binary had a lower runtime version number than the current one. Fixes: 0db89fa243e5 ("ACPI: Introduce Platform Firmware Runtime Update device driver") Cc: 5.17+ # 5.17+ Reported-by: "Govindarajulu, Hariganesh" Signed-off-by: Chen Yu Link: https://patch.msgid.link/20250722143233.3970607-1-yu.c.chen@intel.com [ rjw: Changelog edits ] Signed-off-by: Rafael J. Wysocki

ACPI: APEI: EINJ: Fix resource leak by remove callback in .exit.text

2025-08-18T16:18:33Z

The .remove() callback is also used during error handling in faux_probe(). As einj_remove() was marked with __exit it's not linked into the kernel if the driver is built-in, potentially resulting in resource leaks. Also remove the comment justifying the __exit annotation which doesn't apply any more since the driver was converted to the faux device interface. Fixes: 6cb9441bfe8d ("ACPI: APEI: EINJ: Transition to the faux device interface") Signed-off-by: Uwe Kleine-König Cc: 6.16+ # 6.16+ Link: https://patch.msgid.link/20250814051157.35867-2-u.kleine-koenig@baylibre.com Signed-off-by: Rafael J. Wysocki

ACPI: APEI: EINJ: fix potential NULL dereference in __einj_error_inject()

2025-08-18T16:10:15Z

The __einj_error_inject() function allocates memory via kmalloc() without checking for allocation failure, which could lead to a NULL pointer dereference. Return -ENOMEM in case allocation fails. Fixes: b47610296d17 ("ACPI: APEI: EINJ: Enable EINJv2 error injections") Signed-off-by: Charles Han Reviewed-by: Tony Luck Reviewed-by: Hanjun Guo Link: https://patch.msgid.link/20250815024207.3038-1-hanchunchao@inspur.com Signed-off-by: Rafael J. Wysocki

ACPI: APEI: EINJ: Check if user asked for EINJV2 injection

2025-08-18T16:07:38Z

On an EINJV2 capable system, users may still use the old injection interface but einj_get_parameter_address() takes the EINJV2 path to map the parameter structure. This results in the address the user supplied being stored to the wrong location and the BIOS injecting based on an uninitialized field (0x0 in the reported case). Check the version of the request when mapping the EINJ parameter structure in BIOS reserved memory. Fixes: 691a0f0a557b ("ACPI: APEI: EINJ: Discover EINJv2 parameters") Reported-by: Lai, Yi1 Signed-off-by: Tony Luck Reviewed-by: Zaid Alali Reviewed-by: Hanjun Guo Link: https://patch.msgid.link/20250814161706.4489-1-tony.luck@intel.com Signed-off-by: Rafael J. Wysocki

Merge branches 'acpi-ec' and 'acpi-processor'

2025-08-14T11:09:27Z

* acpi-ec: ACPI: EC: Relax sanity check of the ECDT ID string * acpi-processor: ACPI: processor: perflib: Move problematic pr->performance check