# 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-8.5.0-nolibc/mips-linux/bin/mips-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.5.0-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_bigsur_defconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- bigsur_defconfig # < make -s -j 40 ARCH=mips O=/kisskb/build/linus_bigsur_defconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- help # make -s -j 40 ARCH=mips O=/kisskb/build/linus_bigsur_defconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- olddefconfig # make -s -j 40 ARCH=mips O=/kisskb/build/linus_bigsur_defconfig_mips-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.5.0-nolibc/mips-linux/bin/mips-linux- /kisskb/src/arch/mips/sibyte/bcm1480/setup.c:104:13: warning: no previous prototype for 'bcm1480_setup' [-Wmissing-prototypes] void __init bcm1480_setup(void) ^~~~~~~~~~~~~ /kisskb/src/arch/mips/sibyte/bcm1480/time.c:10:13: warning: no previous prototype for 'plat_time_init' [-Wmissing-prototypes] void __init plat_time_init(void) ^~~~~~~~~~~~~~ /kisskb/src/arch/mips/sibyte/bcm1480/irq.c:200:13: warning: no previous prototype for 'init_bcm1480_irqs' [-Wmissing-prototypes] void __init init_bcm1480_irqs(void) ^~~~~~~~~~~~~~~~~ /kisskb/src/arch/mips/sibyte/bcm1480/smp.c:49:6: warning: no previous prototype for 'bcm1480_smp_init' [-Wmissing-prototypes] void bcm1480_smp_init(void) ^~~~~~~~~~~~~~~~ /kisskb/src/arch/mips/sibyte/bcm1480/smp.c:158:6: warning: no previous prototype for 'bcm1480_mailbox_interrupt' [-Wmissing-prototypes] void bcm1480_mailbox_interrupt(void) ^~~~~~~~~~~~~~~~~~~~~~~~~ /kisskb/src/arch/mips/sibyte/swarm/setup.c:59:5: warning: no previous prototype for 'swarm_be_handler' [-Wmissing-prototypes] int swarm_be_handler(struct pt_regs *regs, int is_fixup) ^~~~~~~~~~~~~~~~ /kisskb/src/arch/mips/sibyte/swarm/rtc_xicor1241.c:108:5: warning: no previous prototype for 'xicor_set_time' [-Wmissing-prototypes] int xicor_set_time(time64_t t) ^~~~~~~~~~~~~~ /kisskb/src/arch/mips/sibyte/swarm/rtc_xicor1241.c:167:10: warning: no previous prototype for 'xicor_get_time' [-Wmissing-prototypes] time64_t xicor_get_time(void) ^~~~~~~~~~~~~~ /kisskb/src/arch/mips/sibyte/swarm/rtc_xicor1241.c:203:5: warning: no previous prototype for 'xicor_probe' [-Wmissing-prototypes] int xicor_probe(void) ^~~~~~~~~~~ /kisskb/src/arch/mips/sibyte/swarm/rtc_m41t81.c:139:5: warning: no previous prototype for 'm41t81_set_time' [-Wmissing-prototypes] int m41t81_set_time(time64_t t) ^~~~~~~~~~~~~~~ /kisskb/src/arch/mips/sibyte/swarm/rtc_m41t81.c:186:10: warning: no previous prototype for 'm41t81_get_time' [-Wmissing-prototypes] time64_t m41t81_get_time(void) ^~~~~~~~~~~~~~~ /kisskb/src/arch/mips/sibyte/swarm/rtc_m41t81.c:219:5: warning: no previous prototype for 'm41t81_probe' [-Wmissing-prototypes] int m41t81_probe(void) ^~~~~~~~~~~~ /kisskb/src/arch/mips/mm/cerr-sb1.c:165:17: warning: no previous prototype for 'sb1_cache_error' [-Wmissing-prototypes] asmlinkage void sb1_cache_error(void) ^~~~~~~~~~~~~~~ /kisskb/src/arch/mips/kernel/cevt-bcm1480.c:96:6: warning: no previous prototype for 'sb1480_clockevent_init' [-Wmissing-prototypes] void sb1480_clockevent_init(void) ^~~~~~~~~~~~~~~~~~~~~~ /kisskb/src/arch/mips/kernel/csrc-bcm1480.c:37:13: warning: no previous prototype for 'sb1480_clocksource_init' [-Wmissing-prototypes] void __init sb1480_clocksource_init(void) ^~~~~~~~~~~~~~~~~~~~~~~ Completed OK # rm -rf /kisskb/build/linus_bigsur_defconfig_mips-gcc8 # Build took: 0:00:55.918439