# git rev-parse -q --verify bb5a93aaf25261321db0c499cde7da6ee9d8b164^{commit} bb5a93aaf25261321db0c499cde7da6ee9d8b164 already have revision, skipping fetch # git checkout -q -f -B kisskb bb5a93aaf25261321db0c499cde7da6ee9d8b164 # git clean -qxdf # < git log -1 # commit bb5a93aaf25261321db0c499cde7da6ee9d8b164 # Author: Linus Torvalds # Date: Sun Jul 5 12:50:20 2020 -0700 # # x86/ldt: use "pr_info_once()" instead of open-coding it badly # # Using a mutex for "print this warning only once" is so overdesigned as # to be actively offensive to my sensitive stomach. # # Just use "pr_info_once()" that already does this, although in a # (harmlessly) racy manner that can in theory cause the message to be # printed twice if more than one CPU races on that "is this the first # time" test. # # [ If somebody really cares about that harmless data race (which sounds # very unlikely indeed), that person can trivially fix printk_once() by # using a simple atomic access, preferably with an optimistic non-atomic # test first before even bothering to treat the pointless "make sure it # is _really_ just once" case. # # A mutex is most definitely never the right primitive to use for # something like this. ] # # Yes, this is a small and meaningless detail in a code path that hardly # matters. But let's keep some code quality standards here, and not # accept outrageously bad code. # # Link: https://lore.kernel.org/lkml/CAHk-=wgV9toS7GU3KmNpj8hCS9SeF+A0voHS8F275_mgLhL4Lw@mail.gmail.com/ # Cc: Andy Lutomirski # Cc: Thomas Gleixner # Cc: Peter Zijlstra (Intel) # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-gcc --version # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi-ld --version # < git log --format=%s --max-count=1 bb5a93aaf25261321db0c499cde7da6ee9d8b164 # < make -s -j 80 ARCH=arm O=/kisskb/build/linus_rpc_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- rpc_defconfig # < make -s -j 80 ARCH=arm O=/kisskb/build/linus_rpc_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- help # make -s -j 80 ARCH=arm O=/kisskb/build/linus_rpc_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- olddefconfig # make -s -j 80 ARCH=arm O=/kisskb/build/linus_rpc_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- /kisskb/src/drivers/tty/vt/vt_ioctl.c: In function 'vt_ioctl': /kisskb/src/drivers/tty/vt/vt_ioctl.c:1043:1: internal compiler error: Max. number of generated reload insns per insn is achieved (90) } ^ Please submit a full bug report, with preprocessed source if appropriate. See for instructions. make[4]: *** [/kisskb/src/scripts/Makefile.build:281: drivers/tty/vt/vt_ioctl.o] Error 1 make[4]: *** Waiting for unfinished jobs.... make[3]: *** [/kisskb/src/scripts/Makefile.build:497: drivers/tty/vt] Error 2 make[3]: *** Waiting for unfinished jobs.... make[2]: *** [/kisskb/src/scripts/Makefile.build:497: drivers/tty] Error 2 make[2]: *** Waiting for unfinished jobs.... /kisskb/src/fs/fat/dir.c: In function 'fat_ioctl_filldir': /kisskb/src/fs/fat/dir.c:759:43: internal compiler error: Max. number of generated reload insns per insn is achieved (90) FAT_IOCTL_FILLDIR_FUNC(fat_ioctl_filldir, __fat_dirent) ^ /kisskb/src/fs/fat/dir.c:714:9: note: in definition of macro 'FAT_IOCTL_FILLDIR_FUNC' struct dirent_type __user *d2 = d1 + 1; \ ^ Please submit a full bug report, with preprocessed source if appropriate. See for instructions. make[3]: *** [/kisskb/src/scripts/Makefile.build:281: fs/fat/dir.o] Error 1 make[3]: *** Waiting for unfinished jobs.... make[2]: *** [/kisskb/src/scripts/Makefile.build:497: fs/fat] Error 2 make[2]: *** Waiting for unfinished jobs.... make[1]: *** [/kisskb/src/Makefile:1756: fs] Error 2 make[1]: *** Waiting for unfinished jobs.... make[1]: *** [/kisskb/src/Makefile:1756: drivers] Error 2 make: *** [Makefile:185: __sub-make] Error 2 Command 'make -s -j 80 ARCH=arm O=/kisskb/build/linus_rpc_defconfig_arm-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/arm-linux-gnueabi/bin/arm-linux-gnueabi- ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus_rpc_defconfig_arm-gcc4.9 # Build took: 0:00:39.940180