Buildresult: linus/xtensa-defconfig/xtensa-gcc8.1 built on Oct 31, 12:21

kisskb

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Status:	OK
Date/Time:	Oct 31, 12:21
Duration:	0:00:28.764179
Builder:	ka7
Revision:	x86/uaccess: Avoid barrier_nospec() in 64-bit copy_from_user() (`0fc810ae3ae110f9e2fcccce80fc8c8d62f97907)`
Target:	linus/xtensa-defconfig/xtensa-gcc8.1
Branch:	linus
Compiler:	xtensa-gcc8.1 (xtensa-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30)
Config:	defconfig (download)
Log:	Download original No warnings found in log. Full Log # git rev-parse -q --verify 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907^{commit} 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 already have revision, skipping fetch # git checkout -q -f -B kisskb 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 # git clean -qxdf # < git log -1 # commit 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Tue Oct 29 16:03:31 2024 -1000 # # x86/uaccess: Avoid barrier_nospec() in 64-bit copy_from_user() # # The barrier_nospec() in 64-bit copy_from_user() is slow. Instead use # pointer masking to force the user pointer to all 1's for an invalid # address. # # The kernel test robot reports a 2.6% improvement in the per_thread_ops # benchmark [1]. # # This is a variation on a patch originally by Josh Poimboeuf [2]. # # Link: https://lore.kernel.org/202410281344.d02c72a2-oliver.sang@intel.com [1] # Link: https://lore.kernel.org/5b887fe4c580214900e21f6c61095adf9a142735.1730166635.git.jpoimboe@kernel.org [2] # Tested-and-reviewed-by: Josh Poimboeuf <jpoimboe@kernel.org> # Cc: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/xtensa-linux/bin/xtensa-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/xtensa-linux/bin/xtensa-linux-ld --version # < git log --format=%s --max-count=1 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 # make -s -j 32 ARCH=xtensa O=/kisskb/build/linus_defconfig_xtensa-gcc8.1 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/xtensa-linux/bin/xtensa-linux- defconfig # < make -s -j 32 ARCH=xtensa O=/kisskb/build/linus_defconfig_xtensa-gcc8.1 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/xtensa-linux/bin/xtensa-linux- help # make -s -j 32 ARCH=xtensa O=/kisskb/build/linus_defconfig_xtensa-gcc8.1 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/xtensa-linux/bin/xtensa-linux- olddefconfig # make -s -j 32 ARCH=xtensa O=/kisskb/build/linus_defconfig_xtensa-gcc8.1 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/xtensa-linux/bin/xtensa-linux- Completed OK # rm -rf /kisskb/build/linus_defconfig_xtensa-gcc8.1 # Build took: 0:00:28.764179

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