Messages in this thread | | | Date | Sat, 6 Nov 2021 03:31:30 +0800 | From | kernel test robot <> | Subject | fs/ntfs3/attrib.c:70:20: warning: unused function 'attr_must_be_resident' |
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Hi Konstantin,
First bad commit (maybe != root cause):
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: fe91c4725aeed35023ba4f7a1e1adfebb6878c23 commit: 6e5be40d32fb1907285277c02e74493ed43d77fe fs/ntfs3: Add NTFS3 in fs/Kconfig and fs/Makefile date: 3 months ago config: mips-randconfig-r032-20211102 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 264d3b6d4e08401c5b50a85bd76e80b3461d77e6) 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=6e5be40d32fb1907285277c02e74493ed43d77fe git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 6e5be40d32fb1907285277c02e74493ed43d77fe # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash fs/ntfs3/
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> fs/ntfs3/attrib.c:70:20: warning: unused function 'attr_must_be_resident' static inline bool attr_must_be_resident(struct ntfs_sb_info ^ fatal error: error in backend: Nested variants found in inline asm string: ' .set push .set mips64r2 .if ( 0x00 ) != -1)) 0x00 ) != -1)) : ($( static struct ftrace_branch_data __attribute__((__aligned__(4))) __attribute__((__section__("_ftrace_branch"))) __if_trace = $( .func = __func__, .file = "arch/mips/include/asm/bitops.h", .line = 105, $); 0x00 ) != -1)) : $))) ) && ( 0 ); .set push; .set mips64r2; .rept 1; sync 0x00; .endr; .set pop; .else; ; .endif 1: lld $0, $1 or $0, $2 scd $0, $1 beqz $0, 1b .set pop ' clang-14: error: clang frontend command failed with exit code 70 (use -v to see invocation) clang version 14.0.0 (git://gitmirror/llvm_project 847a6807332b13f43704327c2d30103ec0347c77) Target: mips64el-unknown-linux Thread model: posix InstalledDir: /opt/cross/clang-847a680733/bin clang-14: note: diagnostic msg: Makefile arch block drivers fs include kernel modules.order nr_bisected scripts source usr -- >> fs/ntfs3/bitmap.c:59:19: warning: unused function 'wnd_bits' static inline u32 wnd_bits(const struct wnd_bitmap size_t i) ^ fatal error: error in backend: Nested variants found in inline asm string: ' .set push .set mips64r2 .if ( 0x00 ) != -1)) 0x00 ) != -1)) : ($( static struct ftrace_branch_data __attribute__((__aligned__(4))) __attribute__((__section__("_ftrace_branch"))) __if_trace = $( .func = __func__, .file = "arch/mips/include/asm/atomic.h", .line = 157, $); 0x00 ) != -1)) : $))) ) && ( 0 ); .set push; .set mips64r2; .rept 1; sync 0x00; .endr; .set pop; .else; ; .endif 1: ll $0, $1 # atomic_sub subu $0, $2 sc $0, $1 beqz $0, 1b .set pop ' clang-14: error: clang frontend command failed with exit code 70 (use -v to see invocation) clang version 14.0.0 (git://gitmirror/llvm_project 847a6807332b13f43704327c2d30103ec0347c77) Target: mips64el-unknown-linux Thread model: posix InstalledDir: /opt/cross/clang-847a680733/bin clang-14: note: diagnostic msg: Makefile arch block drivers fs include kernel modules.order nr_bisected scripts source usr
vim +/attr_must_be_resident +70 fs/ntfs3/attrib.c
be71b5cba2e6485 Konstantin Komarov 2021-08-13 64 be71b5cba2e6485 Konstantin Komarov 2021-08-13 65 /* be71b5cba2e6485 Konstantin Komarov 2021-08-13 66 * attr_must_be_resident be71b5cba2e6485 Konstantin Komarov 2021-08-13 67 * be71b5cba2e6485 Konstantin Komarov 2021-08-13 68 * returns true if attribute must be resident be71b5cba2e6485 Konstantin Komarov 2021-08-13 69 */ be71b5cba2e6485 Konstantin Komarov 2021-08-13 @70 static inline bool attr_must_be_resident(struct ntfs_sb_info *sbi, be71b5cba2e6485 Konstantin Komarov 2021-08-13 71 enum ATTR_TYPE type) be71b5cba2e6485 Konstantin Komarov 2021-08-13 72 { be71b5cba2e6485 Konstantin Komarov 2021-08-13 73 const struct ATTR_DEF_ENTRY *de; be71b5cba2e6485 Konstantin Komarov 2021-08-13 74 be71b5cba2e6485 Konstantin Komarov 2021-08-13 75 switch (type) { be71b5cba2e6485 Konstantin Komarov 2021-08-13 76 case ATTR_STD: be71b5cba2e6485 Konstantin Komarov 2021-08-13 77 case ATTR_NAME: be71b5cba2e6485 Konstantin Komarov 2021-08-13 78 case ATTR_ID: be71b5cba2e6485 Konstantin Komarov 2021-08-13 79 case ATTR_LABEL: be71b5cba2e6485 Konstantin Komarov 2021-08-13 80 case ATTR_VOL_INFO: be71b5cba2e6485 Konstantin Komarov 2021-08-13 81 case ATTR_ROOT: be71b5cba2e6485 Konstantin Komarov 2021-08-13 82 case ATTR_EA_INFO: be71b5cba2e6485 Konstantin Komarov 2021-08-13 83 return true; be71b5cba2e6485 Konstantin Komarov 2021-08-13 84 default: be71b5cba2e6485 Konstantin Komarov 2021-08-13 85 de = ntfs_query_def(sbi, type); be71b5cba2e6485 Konstantin Komarov 2021-08-13 86 if (de && (de->flags & NTFS_ATTR_MUST_BE_RESIDENT)) be71b5cba2e6485 Konstantin Komarov 2021-08-13 87 return true; be71b5cba2e6485 Konstantin Komarov 2021-08-13 88 return false; be71b5cba2e6485 Konstantin Komarov 2021-08-13 89 } be71b5cba2e6485 Konstantin Komarov 2021-08-13 90 } be71b5cba2e6485 Konstantin Komarov 2021-08-13 91
:::::: The code at line 70 was first introduced by commit :::::: be71b5cba2e6485e8959da7a9f9a44461a1bb074 fs/ntfs3: Add attrib operations
:::::: TO: Konstantin Komarov <almaz.alexandrovich@paragon-software.com> :::::: CC: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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