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2024-11-02powerpc: Split systemcfg struct definitions out from vdsoThomas Weißschuh
The systemcfg data has nothing to do anymore with the vdso. Split it into a dedicated header file. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-27-b64f0842d512@linutronix.de
2024-11-02powerpc: Split systemcfg data out of vdso data pageThomas Weißschuh
The systemcfg data only has minimal overlap with the vdso data. Splitting the two avoids mapping the implementation-defined vdso data into /proc/ppc64/systemcfg. It is also a preparation for the standardization of vdso data storage. The only field actually used by both systemcfg and vdso is tb_ticks_per_sec and it is only changed once during time_init(). Initialize it in both structures there. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-26-b64f0842d512@linutronix.de
2024-11-02powerpc: Add kconfig option for the systemcfg pageThomas Weißschuh
The systemcfg page through procfs is only a backwards-compatible interface for very old applications. Make it possible to be disabled. This also creates a convenient config #define to guard any accesses to the systemcfg page. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-25-b64f0842d512@linutronix.de
2024-11-02powerpc/pseries/lparcfg: Use num_possible_cpus() for potential processorsThomas Weißschuh
The systemcfg processorCount variable tracks currently online variables, not possible ones, so the stored value is wrong. The code preferably tries to use the ibm,lrdr-capacity field 4 which "represents the maximum number of processors that the guest can have." Switch from processorCount to the better matching num_possible_cpus(). Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-24-b64f0842d512@linutronix.de
2024-11-02powerpc/pseries/lparcfg: Fix printing of system_active_processorsThomas Weißschuh
When printing the information "system_active_processors", the variable partition_potential_processors is used instead of partition_active_processors. The wrong value is displayed. Use partition_active_processors instead. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-23-b64f0842d512@linutronix.de
2024-11-02powerpc/procfs: Propagate error of remap_pfn_range()Thomas Weißschuh
If the operation fails and userspace is unaware it will access unmapped memory, crashing the process. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-22-b64f0842d512@linutronix.de
2024-11-02powerpc/vdso: Remove offset comment from 32bit vdso_arch_dataThomas Weißschuh
This offset was copy-pasted from the systemcfg structure. It has no meaning for the 32bit VDSO. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-21-b64f0842d512@linutronix.de
2024-11-02x86/vdso: Split virtual clock pages into dedicated mappingThomas Weißschuh
The generic vdso data storage cannot handle the special pvclock and hvclock pages. Split them into their own mapping, so the other vdso storage can be migrated to the generic code. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-20-b64f0842d512@linutronix.de
2024-11-02x86/vdso: Delete vvar.hThomas Weißschuh
All users have been removed. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-19-b64f0842d512@linutronix.de
2024-11-02x86/vdso: Access vdso data without vvar.hThomas Weißschuh
The vdso_data is at the start of the vvar page. Make use of this invariant to remove the usage of vvar.h. This also matches the logic for the timens data. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-18-b64f0842d512@linutronix.de
2024-11-02x86/vdso: Move the rng offset to vsyscall.hThomas Weißschuh
vvar.h will go away, so move the last useful bit into vsyscall.h. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-17-b64f0842d512@linutronix.de
2024-11-02x86/vdso: Access rng vdso data without vvar.hThomas Weißschuh
The vdso_rng_data is at a well-known offset in the vvar page. Make use of this invariant to remove the usage of vvar.h. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-16-b64f0842d512@linutronix.de
2024-11-02x86/vdso: Access timens vdso data without vvar.hThomas Weißschuh
The vdso_data is at the start of the timens page. Make use of this invariant to remove the usage of vvar.h. This also matches the logic for the pvclock and hvclock pages. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-15-b64f0842d512@linutronix.de
2024-11-02x86/vdso: Allocate vvar page from C codeThomas Weißschuh
Allocate the vvar page through the standard union vdso_data_store and remove the custom linker script logic. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-14-b64f0842d512@linutronix.de
2024-11-02x86/vdso: Access rng data from kernel without vvarThomas Weißschuh
Remove the usage of the vvar _vdso_rng_data from the kernel-space code, as the x86 vvar machinery is about to be removed. The definition of the structure is unnecessary, as the data lives in a page pre-allocated by the linker anyways. The vdso user-space access to the rng data will be switched soon. DEFINE_VVAR_SINGLE() is now unused. It will be removed later togehter with the rest of vvar.h. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-13-b64f0842d512@linutronix.de
2024-11-02x86/vdso: Place vdso_data at beginning of vvar pageThomas Weißschuh
The offset of the vdso_data only has historic reasons, as back then other vvars also existed and offset 0 was already used. (See commit 8c49d9a74bac ("x86-64: Clean up vdso/kernel shared variables")) Over time most other vvars got removed and offset 0 is free again. Moving vdso_data to the beginning of the vvar page aligns x86 with other architectures and opens up the way for the removal of the custom x86 vvar machinery. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-12-b64f0842d512@linutronix.de
2024-11-02x86/vdso: Use __arch_get_vdso_data() to access vdso dataThomas Weißschuh
The implementation details of the vdso_data access will change. Prepare for that by using the existing helper function. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-11-b64f0842d512@linutronix.de
2024-11-02x86/mm/mmap: Remove arch_vma_name()Thomas Weißschuh
This function does not contain any logic, delete it so the equivalent weak definition from kernel/signal.c is used instead. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-10-b64f0842d512@linutronix.de
2024-11-02MIPS: vdso: Avoid name conflict around "vdso_data"Thomas Weißschuh
The generic vdso/datapage.h declares a symbol named "vdso_data". Avoid a conflict by renaming the identically named variable in genvdso.c. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-9-b64f0842d512@linutronix.de
2024-11-02LoongArch: vDSO: Use vdso/datapage.h to access vDSO dataThomas Weißschuh
vdso/datapage.h provides symbols and functions to ease the access to shared vDSO data from both the kernel and the vDSO. Make use of it to simplify the current code and also prepare for further changes unifying the vDSO data storage between architectures. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-8-b64f0842d512@linutronix.de
2024-11-02ARM: vdso: Remove assembly for datapage accessThomas Weißschuh
vdso/datapage.h provides a hidden declaration for _vdso_data. When using it the compiler will automatically generate PC-relative accesses which avoids the need for a custom assembly-based accessor. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-7-b64f0842d512@linutronix.de
2024-11-02riscv: vdso: Use only one single vvar mappingThomas Weißschuh
The vvar mapping is the same for all processes. Use a single mapping to simplify the logic and align it with the other architectures. In addition this will enable the move of the vvar handling into generic code. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-6-b64f0842d512@linutronix.de
2024-11-02arm64: vdso: Use only one single vvar mappingThomas Weißschuh
The vvar mapping is the same for all processes. Use a single mapping to simplify the logic and align it with the other architectures. In addition this will enable the move of the vvar handling into generic code. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Will Deacon <will@kernel.org> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-5-b64f0842d512@linutronix.de
2024-11-02arm64: vdso: Drop LBASE_VDSOThomas Weißschuh
This constant is always "0", providing no value and making the logic harder to understand. Also prepare for a consolidation of the vdso linkerscript logic by aligning it with other architectures. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-4-b64f0842d512@linutronix.de
2024-11-02s390/vdso: Drop LBASE_VDSOThomas Weißschuh
This constant is always "0", providing no value and making the logic harder to understand. Also prepare for a consolidation of the vdso linkerscript logic by aligning it with other architectures. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Heiko Carstens <hca@linux.ibm.com> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-3-b64f0842d512@linutronix.de
2024-11-02csky/vdso: Remove arch_vma_name()Thomas Weißschuh
All callers of arch_vma_name() also get the name via vm_ops, which for these VMAs will use the name from 'struct vma_special_mapping'. Therefore the custom implementation is unnecessary and can be removed in favor of the default implementation from kernel/signal.c. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-2-b64f0842d512@linutronix.de
2024-11-02csky/vdso: Remove gettimeofday() and friends from VDSOThomas Weißschuh
The time-related VDSO functionality was introduced in 2021 in commit 87f3248cdb9a ("csky: Reconstruct VDSO framework") and commit 0d3b051adbb7 ("csky: Add VDSO with GENERIC_GETTIMEOFDAY, GENERIC_TIME_VSYSCALL, HAVE_GENERIC_VDSO"). However the corresponding aux-vector entry AT_SYSINFO_EHDR was never wired up, making these functions impossible to test or use. The VDSO itself is kept as it also provides rt_sigreturn which is exposed differently to userspace. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-base-v1-1-b64f0842d512@linutronix.de
2024-10-28vdso: Change PAGE_MASK to signed on all 32-bit architecturesArnd Bergmann
With the introduction of an architecture-independent defintion of PAGE_MASK, we had to make a choice between defining it as 'unsigned long' as on 64-bit architectures, or as signed 'long' as required for architectures with a 64-bit phys_addr_t. To reduce the risk for regressions and minimize the changes in behavior, the result was using the signed value only when CONFIG_PHYS_ADDR_T_64BIT is set, but that ended up causing a regression after all in the early_init_dt_add_memory_arch() function that uses 64-bit integers for address calculation. Presumably the same regression also affects mips32 and powerpc32 when dealing with large amounts of memory on DT platforms: like arm32, they were using the signed version unconditionally. The two most sensible options for addressing the regression are either to go back to an architecture specific definition, using a signed constant on arm/powerpc/mips and unsigned on the others, or to use the same definition everywhere. Use the simpler of those two and change them all to the signed version, in the hope that this does not cause a different type of bug. Most of the other 32-bit architectures have no large physical address support and are rarely used, so it seems more likely that using the same definition helps than hurts here. In particular, x86-32 does have physical addressing extensions, so it already changed to the signed version after the previous patch, so it makes sense to use the same version on non-PAE as well. Fixes: efe8419ae78d ("vdso: Introduce vdso/page.h") Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Tested-by: Anders Roxell <anders.roxell@linaro.org> Tested-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Link: https://lore.kernel.org/all/20241024133447.3117273-1-arnd@kernel.org Link: https://lore.kernel.org/lkml/CA+G9fYt86bUAu_v5dXPWnDUwQNVipj+Wq3Djir1KUSKdr9QLNg@mail.gmail.com/
2024-10-16s390: Remove remaining _PAGE_* macrosVincenzo Frascino
The introduction of vdso/page.h made the definition of _PAGE_SHIFT, _PAGE_SIZE, _PAGE_MASK redundant. Refactor the code to remove the macros. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241014151340.1639555-4-vincenzo.frascino@arm.com Closes: https://lore.kernel.org/oe-kbuild-all/202410112106.mvc2U2p0-lkp@intel.com/
2024-10-16vdso: Introduce vdso/page.hVincenzo Frascino
The VDSO implementation includes headers from outside of the vdso/ namespace. Introduce vdso/page.h to make sure that the generic library uses only the allowed namespace. Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k Link: https://lore.kernel.org/all/20241014151340.1639555-3-vincenzo.frascino@arm.com
2024-10-16drm: i915: Change fault type to unsigned longVincenzo Frascino
Fault is currently of type u32 and with the introduction of the generalized vdso/page.h we trigger the error below: drivers/gpu/drm/i915/gt/intel_gt_print.h:29:36: error: format ‘%lx’ expects argument of type ‘long unsigned int’, but argument 6 has type ‘u32’ {aka ‘unsigned int’} [-Werror=format=] 29 | drm_dbg(&(_gt)->i915->drm, "GT%u: " _fmt, (_gt)->info.id, | ^~~~~~~~ include/drm/drm_print.h:424:39: note: in definition of macro ‘drm_dev_dbg’ 424 | __drm_dev_dbg(NULL, dev, cat, fmt, ##__VA_ARGS__) | ^~~ include/drm/drm_print.h:524:33: note: in expansion of macro ‘drm_dbg_driver’ 524 | #define drm_dbg(drm, fmt, ...) drm_dbg_driver(drm, fmt, ##__VA_ARGS__) | ^~~~~~~~~~~~~~ linux/drivers/gpu/drm/i915/gt/intel_gt_print.h:29:9: note: in expansion of macro ‘drm_dbg’ 29 | drm_dbg(&(_gt)->i915->drm, "GT%u: " _fmt, (_gt)->info.id, | ^~~~~~~ drivers/gpu/drm/i915/gt/intel_gt.c:310:25: note: in expansion of macro ‘gt_dbg’ 310 | gt_dbg(gt, "Unexpected fault\n" | ^~~~~~ This happens because the type of PAGE_MASK depends on the architecture. Prevent the compilation error changing the 'fault' type to unsigned long. Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/all/20241014151340.1639555-2-vincenzo.frascino@arm.com
2024-10-15MIPS: vdso: Remove timekeeper includesThomas Weißschuh
Since the generic VDSO clock mode storage is used, this header file is unused and can be removed. This avoids including a non-VDSO header while building the VDSO, which can lead to compilation errors. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-arch_update_vsyscall-v1-9-7fe5a3ea4382@linutronix.de
2024-10-15LoongArch: vdso: Remove timekeeper includesThomas Weißschuh
Since the generic VDSO clock mode storage is used, this header file is unused and can be removed. This avoids including a non-VDSO header while building the VDSO, which can lead to compilation errors. Also drop the comment which is out of date and in the wrong place. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-arch_update_vsyscall-v1-8-7fe5a3ea4382@linutronix.de
2024-10-15x86/vdso: Remove timekeeper includeThomas Weißschuh
Since the generic VDSO clock mode storage is used, this header file is unused and can be removed. This avoids including a non-VDSO header while building the VDSO, which can lead to compilation errors. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-arch_update_vsyscall-v1-7-7fe5a3ea4382@linutronix.de
2024-10-15s390/vdso: Remove timekeeper includesThomas Weißschuh
Since the generic VDSO clock mode storage is used, this header file is unused and can be removed. This avoids including a non-VDSO header while building the VDSO, which can lead to compilation errors. Also drop the comment which is out of date and in the wrong place. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Heiko Carstens <hca@linux.ibm.com> Link: https://lore.kernel.org/all/20241010-vdso-generic-arch_update_vsyscall-v1-6-7fe5a3ea4382@linutronix.de
2024-10-15riscv: vdso: Remove timekeeper includeThomas Weißschuh
Since the generic VDSO clock mode storage is used, this header file is unused and can be removed. This avoids including a non-VDSO header while building the VDSO, which can lead to compilation errors. Also drop the comment which is out of date and in the wrong place. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-arch_update_vsyscall-v1-5-7fe5a3ea4382@linutronix.de
2024-10-15powerpc/vdso: Remove timekeeper includesThomas Weißschuh
Since the generic VDSO clock mode storage is used, this header file is unused and can be removed. This avoids including a non-VDSO header while building the VDSO, which can lead to compilation errors. Also drop the comment which is out of date and in the wrong place. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-arch_update_vsyscall-v1-4-7fe5a3ea4382@linutronix.de
2024-10-15arm64: vdso: Remove timekeeper includeThomas Weißschuh
Since the generic VDSO clock mode storage is used, this header file is unused and can be removed. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/all/20241010-vdso-generic-arch_update_vsyscall-v1-3-7fe5a3ea4382@linutronix.de
2024-10-15arm: vdso: Remove timekeeper includesThomas Weißschuh
Since the generic VDSO clock mode storage is used, this header file is unused and can be removed. This avoids including a non-VDSO header while building the VDSO, which can lead to compilation errors. Also drop the comment which is out of date and in the wrong place. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20241010-vdso-generic-arch_update_vsyscall-v1-2-7fe5a3ea4382@linutronix.de
2024-10-15vdso: Remove timekeeper argument of __arch_update_vsyscall()Thomas Weißschuh
No implementation of this hook uses the passed in timekeeper anymore. This avoids including a non-VDSO header while building the VDSO, which can lead to compilation errors. Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Will Deacon <will@kernel.org> Link: https://lore.kernel.org/all/20241010-vdso-generic-arch_update_vsyscall-v1-1-7fe5a3ea4382@linutronix.de
2024-10-06Linux 6.12-rc2Linus Torvalds
2024-10-06Merge tag 'kbuild-fixes-v6.12' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Move non-boot built-in DTBs to the .rodata section - Fix Kconfig bugs - Fix maint scripts in the linux-image Debian package - Import some list macros to scripts/include/ * tag 'kbuild-fixes-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kbuild: deb-pkg: Remove blank first line from maint scripts kbuild: fix a typo dt_binding_schema -> dt_binding_schemas scripts: import more list macros kconfig: qconf: fix buffer overflow in debug links kconfig: qconf: move conf_read() before drawing tree pain kconfig: clear expr::val_is_valid when allocated kconfig: fix infinite loop in sym_calc_choice() kbuild: move non-boot built-in DTBs to .rodata section
2024-10-06Merge tag 'platform-drivers-x86-v6.12-2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86 Pull x86 platform driver fixes from Hans de Goede: - Intel PMC fix for suspend/resume issues on some Sky and Kaby Lake laptops - Intel Diamond Rapids hw-id additions - Documentation and MAINTAINERS fixes - Some other small fixes * tag 'platform-drivers-x86-v6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: platform/x86: x86-android-tablets: Fix use after free on platform_device_register() errors platform/x86: wmi: Update WMI driver API documentation platform/x86: dell-ddv: Fix typo in documentation platform/x86: dell-sysman: add support for alienware products platform/x86/intel: power-domains: Add Diamond Rapids support platform/x86: ISST: Add Diamond Rapids to support list platform/x86:intel/pmc: Disable ACPI PM Timer disabling on Sky and Kaby Lake platform/x86: dell-laptop: Do not fail when encountering unsupported batteries MAINTAINERS: Update Intel In Field Scan(IFS) entry platform/x86: ISST: Fix the KASAN report slab-out-of-bounds bug
2024-10-06Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm fixes from Paolo Bonzini: "ARM64: - Fix pKVM error path on init, making sure we do not change critical system registers as we're about to fail - Make sure that the host's vector length is at capped by a value common to all CPUs - Fix kvm_has_feat*() handling of "negative" features, as the current code is pretty broken - Promote Joey to the status of official reviewer, while James steps down -- hopefully only temporarly x86: - Fix compilation with KVM_INTEL=KVM_AMD=n - Fix disabling KVM_X86_QUIRK_SLOT_ZAP_ALL when shadow MMU is in use Selftests: - Fix compilation on non-x86 architectures" * tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: x86/reboot: emergency callbacks are now registered by common KVM code KVM: x86: leave kvm.ko out of the build if no vendor module is requested KVM: x86/mmu: fix KVM_X86_QUIRK_SLOT_ZAP_ALL for shadow MMU KVM: arm64: Fix kvm_has_feat*() handling of negative features KVM: selftests: Fix build on architectures other than x86_64 KVM: arm64: Another reviewer reshuffle KVM: arm64: Constrain the host to the maximum shared SVE VL with pKVM KVM: arm64: Fix __pkvm_init_vcpu cptr_el2 error path
2024-10-06Merge tag 'powerpc-6.12-3' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc fix from Michael Ellerman: - Allow r30 to be used in vDSO code generation of getrandom Thanks to Jason A. Donenfeld * tag 'powerpc-6.12-3' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/vdso: allow r30 in vDSO code generation of getrandom
2024-10-07kbuild: deb-pkg: Remove blank first line from maint scriptsAaron Thompson
The blank line causes execve() to fail: # strace ./postinst execve("./postinst", ...) = -1 ENOEXEC (Exec format error) strace: exec: Exec format error +++ exited with 1 +++ However running the scripts via shell does work (at least with bash) because the shell attempts to execute the file as a shell script when execve() fails. Fixes: b611daae5efc ("kbuild: deb-pkg: split image and debug objects staging out into functions") Signed-off-by: Aaron Thompson <dev@aaront.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Nicolas Schier <nicolas@fjasle.eu> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2024-10-07kbuild: fix a typo dt_binding_schema -> dt_binding_schemasXu Yang
If we follow "make help" to "make dt_binding_schema", we will see below error: $ make dt_binding_schema make[1]: *** No rule to make target 'dt_binding_schema'. Stop. make: *** [Makefile:224: __sub-make] Error 2 It should be a typo. So this will fix it. Fixes: 604a57ba9781 ("dt-bindings: kbuild: Add separate target/dependency for processed-schema.json") Signed-off-by: Xu Yang <xu.yang_2@nxp.com> Reviewed-by: Nicolas Schier <n.schier@avm.de> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2024-10-07scripts: import more list macrosSami Tolvanen
Import list_is_first, list_is_last, list_replace, and list_replace_init. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2024-10-06platform/x86: x86-android-tablets: Fix use after free on ↵Hans de Goede
platform_device_register() errors x86_android_tablet_remove() frees the pdevs[] array, so it should not be used after calling x86_android_tablet_remove(). When platform_device_register() fails, store the pdevs[x] PTR_ERR() value into the local ret variable before calling x86_android_tablet_remove() to avoid using pdevs[] after it has been freed. Fixes: 5eba0141206e ("platform/x86: x86-android-tablets: Add support for instantiating platform-devs") Fixes: e2200d3f26da ("platform/x86: x86-android-tablets: Add gpio_keys support to x86_android_tablet_init()") Cc: stable@vger.kernel.org Reported-by: Aleksandr Burakov <a.burakov@rosalinux.ru> Closes: https://lore.kernel.org/platform-driver-x86/20240917120458.7300-1-a.burakov@rosalinux.ru/ Signed-off-by: Hans de Goede <hdegoede@redhat.com> Link: https://lore.kernel.org/r/20241005130545.64136-1-hdegoede@redhat.com
2024-10-06platform/x86: wmi: Update WMI driver API documentationArmin Wolf
The WMI driver core now passes the WMI event data to legacy notify handlers, so WMI devices sharing notification IDs are now being handled properly. Fixes: e04e2b760ddb ("platform/x86: wmi: Pass event data directly to legacy notify handlers") Signed-off-by: Armin Wolf <W_Armin@gmx.de> Link: https://lore.kernel.org/r/20241005213825.701887-1-W_Armin@gmx.de Signed-off-by: Hans de Goede <hdegoede@redhat.com>
generated by cgit (git 2.34.1) at 2025-09-13 03:17:06 +0000