kernel.git/arch/powerpc/kernel/vdso32, branch linux-5.10.y

Merge tag 'kbuild-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2020-10-22T20:13:57Z

Pull Kbuild updates from Masahiro Yamada: - Support 'make compile_commands.json' to generate the compilation database more easily, avoiding stale entries - Support 'make clang-analyzer' and 'make clang-tidy' for static checks using clang-tidy - Preprocess scripts/modules.lds.S to allow CONFIG options in the module linker script - Drop cc-option tests from compiler flags supported by our minimal GCC/Clang versions - Use always 12-digits commit hash for CONFIG_LOCALVERSION_AUTO=y - Use sha1 build id for both BFD linker and LLD - Improve deb-pkg for reproducible builds and rootless builds - Remove stale, useless scripts/namespace.pl - Turn -Wreturn-type warning into error - Fix build error of deb-pkg when CONFIG_MODULES=n - Replace 'hostname' command with more portable 'uname -n' - Various Makefile cleanups * tag 'kbuild-v5.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (34 commits) kbuild: Use uname for LINUX_COMPILE_HOST detection kbuild: Only add -fno-var-tracking-assignments for old GCC versions kbuild: remove leftover comment for filechk utility treewide: remove DISABLE_LTO kbuild: deb-pkg: clean up package name variables kbuild: deb-pkg: do not build linux-headers package if CONFIG_MODULES=n kbuild: enforce -Werror=return-type scripts: remove namespace.pl builddeb: Add support for all required debian/rules targets builddeb: Enable rootless builds builddeb: Pass -n to gzip for reproducible packages kbuild: split the build log of kallsyms kbuild: explicitly specify the build id style scripts/setlocalversion: make git describe output more reliable kbuild: remove cc-option test of -Werror=date-time kbuild: remove cc-option test of -fno-stack-check kbuild: remove cc-option test of -fno-strict-overflow kbuild: move CFLAGS_{KASAN,UBSAN,KCSAN} exports to relevant Makefiles kbuild: remove redundant CONFIG_KASAN check from scripts/Makefile.kasan kbuild: do not create built-in objects for external module builds ...

powerpc: Remove support for PowerPC 601

2020-10-08T10:17:13Z

PowerPC 601 has been retired. Remove all associated specific code. CPU_FTRS_PPC601 has CPU_FTR_COHERENT_ICACHE and CPU_FTR_COMMON. CPU_FTR_COMMON is already present via other CPU_FTRS. None of the remaining CPU selects CPU_FTR_COHERENT_ICACHE. So CPU_FTRS_PPC601 can be removed from the possible features, hence can be removed completely. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/60b725d55e21beec3335175c20b77903ff98284f.1601362098.git.christophe.leroy@csgroup.eu

arch: vdso: add vdso linker script to 'targets' instead of extra-y

2020-09-07T12:41:27Z

The vdso linker script is preprocessed on demand. Adding it to 'targets' is enough to include the .cmd file. Signed-off-by: Masahiro Yamada Acked-by: Catalin Marinas Acked-by: Greentime Hu

Revert "powerpc/build: vdso linker warning for orphan sections"

2020-09-03T05:42:26Z

This reverts commit f2af201002a8bc22500c04cc474ea480bf361351. It added a usage of cc-ldoption, but cc-ldoption was removed in commit 055efab3120b ("kbuild: drop support for cc-ldoption"). Reported-by: Nick Desaulniers Signed-off-by: Michael Ellerman

powerpc/build: vdso linker warning for orphan sections

2020-07-29T11:09:37Z

Signed-off-by: Nicholas Piggin Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/20200303012748.4190929-1-npiggin@gmail.com

powerpc/vdso32: Fallback on getres syscall when clock is unknown

2020-05-11T09:24:29Z

There are other clocks than the standard ones, for instance per process clocks. Therefore, being above the last standard clock doesn't mean it is a bad clock. So, fallback to syscall instead of returning -EINVAL inconditionaly. Fixes: e33ffc956b08 ("powerpc/vdso32: implement clock_getres entirely") Cc: stable@vger.kernel.org # v5.6+ Reported-by: Aurelien Jarno Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Tested-by: Aurelien Jarno Link: https://lore.kernel.org/r/7316a9e2c0c2517923eb4b0411c4a08d15e675a4.1589017281.git.christophe.leroy@csgroup.eu

.gitignore: add SPDX License Identifier

2020-03-25T10:50:48Z

Add SPDX License Identifier to all .gitignore files. Signed-off-by: Masahiro Yamada Signed-off-by: Greg Kroah-Hartman

powerpc/vdso32: miscellaneous optimisations

2020-01-23T10:31:16Z

Various optimisations by inverting branches and removing redundant instructions. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/b4e79f963845545bcce1459cd6fcfe46bdde7863.1575273217.git.christophe.leroy@c-s.fr

powerpc/vdso32: implement clock_getres entirely

2020-01-23T10:31:15Z

clock_getres returns hrtimer_res for all clocks but coarse ones for which it returns KTIME_LOW_RES. return EINVAL for unknown clocks. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/37f94e47c91070b7606fb3ec3fe6fd2302a475a0.1575273217.git.christophe.leroy@c-s.fr

powerpc/vdso32: use LOAD_REG_IMMEDIATE()

2020-01-23T10:31:15Z

Use LOAD_REG_IMMEDIATE() to load registers with immediate value. Signed-off-by: Christophe Leroy Signed-off-by: Michael Ellerman Link: https://lore.kernel.org/r/36f111437e66e601929308f5d5dce230e1ce472f.1575273217.git.christophe.leroy@c-s.fr