# 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 # 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 # Cc: Kirill A. Shutemov # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux-ld --version # < git log --format=%s --max-count=1 0fc810ae3ae110f9e2fcccce80fc8c8d62f97907 # make -s -j 40 ARCH=mips O=/kisskb/build/linus_64r2_defconfig_mips-gcc8.1 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux- 64r2_defconfig Using /kisskb/src/arch/mips/configs/generic_defconfig as base Merging /kisskb/src/arch/mips/configs/generic/64r2.config Merging /kisskb/src/arch/mips/configs/generic/eb.config Merging /kisskb/src/arch/mips/configs/generic/board-boston.config Merging /kisskb/src/arch/mips/configs/generic/board-litex.config Merging /kisskb/src/arch/mips/configs/generic/board-marduk.config Merging /kisskb/src/arch/mips/configs/generic/board-ranchu.config Merging /kisskb/src/arch/mips/configs/generic/board-virt.config # < make -s -j 40 ARCH=mips O=/kisskb/build/linus_64r2_defconfig_mips-gcc8.1 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux- help # make -s -j 40 ARCH=mips O=/kisskb/build/linus_64r2_defconfig_mips-gcc8.1 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux- olddefconfig # make -s -j 40 ARCH=mips O=/kisskb/build/linus_64r2_defconfig_mips-gcc8.1 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/mips-linux/bin/mips-linux- /kisskb/src/arch/mips/boot/dts/img/boston.dts:128.17-178.5: Warning (interrupt_provider): /pci@14000000/pci2_root@0,0: '#interrupt-cells' found, but node is not an interrupt provider /kisskb/src/arch/mips/boot/dts/img/boston.dts:136.23-177.6: Warning (interrupt_provider): /pci@14000000/pci2_root@0,0/eg20t_bridge@1,0,0: '#interrupt-cells' found, but node is not an interrupt provider arch/mips/boot/dts/img/boston.dtb: Warning (interrupt_map): Failed prerequisite 'interrupt_provider' Completed OK # rm -rf /kisskb/build/linus_64r2_defconfig_mips-gcc8.1 # Build took: 0:01:03.496623