tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: b65054597872ce3aefbc6a666385eabdf9e288da commit: 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 ext4: fast commit recovery path date: 6 weeks ago config: mips-randconfig-r023-20201201 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project ac40a2d8f16b8a8c68fc811d67f647740e965cb8) reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # install mips cross compiling tool for clang build # apt-get install binutils-mips-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All warnings (new ones prefixed by >>): >> fs/ext4/fast_commit.c:1753:27: warning: unused function 'tag2str' static inline const char tag) ^ fatal error: error in backend: Nested variants found in inline asm string: ' .set push .set mips64r2 .if ( 0x00 ) != -1)) 0x00 ) != -1)) : ($( static struct ftrace_branch_data __attribute__((__aligned__(4))) __attribute__((__section__("_ftrace_branch"))) __if_trace = $( .func = __func__, .file = "arch/mips/include/asm/bitops.h", .line = 133, $); 0x00 ) != -1)) : $))) ) && ( 0 ); .set push; .set mips64r2; .rept 1; sync 0x00; .endr; .set pop; .else; ; .endif 1: ll $0, $1 and $0, $2 sc $0, $1 beqz $0, 1b .set pop ' clang-12: error: clang frontend command failed with exit code 70 (use -v to see invocation) clang version 12.0.0 (git://gitmirror/llvm_project ac40a2d8f16b8a8c68fc811d67f647740e965cb8) Target: mips-unknown-linux-gnu Thread model: posix InstalledDir: /opt/cross/clang-ac40a2d8f1/bin clang-12: note: diagnostic msg: Makefile arch fs include kernel scripts source usr vim +/tag2str +1753 fs/ext4/fast_commit.c 1752 > 1753 static inline const char *tag2str(u16 tag) 1754 { 1755 switch (tag) { 1756 case EXT4_FC_TAG_LINK: 1757 return "TAG_ADD_ENTRY"; 1758 case EXT4_FC_TAG_UNLINK: 1759 return "TAG_DEL_ENTRY"; 1760 case EXT4_FC_TAG_ADD_RANGE: 1761 return "TAG_ADD_RANGE"; 1762 case EXT4_FC_TAG_CREAT: 1763 return "TAG_CREAT_DENTRY"; 1764 case EXT4_FC_TAG_DEL_RANGE: 1765 return "TAG_DEL_RANGE"; 1766 case EXT4_FC_TAG_INODE: 1767 return "TAG_INODE"; 1768 case EXT4_FC_TAG_PAD: 1769 return "TAG_PAD"; 1770 case EXT4_FC_TAG_TAIL: 1771 return "TAG_TAIL"; 1772 case EXT4_FC_TAG_HEAD: 1773 return "TAG_HEAD"; 1774 default: 1775 return "TAG_ERROR"; 1776 } 1777 } 1778 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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