tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: b5013d084e03e82ceeab4db8ae8ceeaebe76b0eb commit: 3bbda69c48d27474a9e6a90cf4680b295a7efa46 mm/mremap: allow arch runtime override date: 4 months ago config: mips-randconfig-c004-20211014 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 6c76d0101193aa4eb891a6954ff047eda2f9cf71) 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=3bbda69c48d27474a9e6a90cf4680b295a7efa46 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 3bbda69c48d27474a9e6a90cf4680b295a7efa46 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> mm/mremap.c:215:20: warning: unused function 'arch_supports_page_table_move' static inline bool arch_supports_page_table_move(void) ^ mm/mremap.c:214:39: note: expanded from macro 'arch_supports_page_table_move' #define arch_supports_page_table_move arch_supports_page_table_move ^ fatal error: error in backend: Nested variants found in inline asm string: ' .set push .set noat .set push .set arch=r4000 .if ( 0x00 ) != -1)) 0x00 ) != -1)) : ($( static struct ftrace_branch_data __attribute__((__aligned__(4))) __attribute__((__section__("_ftrace_branch"))) __if_trace = $( .func = __func__, .file = "arch/mips/include/asm/cmpxchg.h", .line = 163, $); 0x00 ) != -1)) : $))) ) && ( 0 ); .set push; .set mips64r2; .rept 1; sync 0x00; .endr; .set pop; .else; ; .endif 1: ll $0, $2 # __cmpxchg_asm bne $0, ${3:z}, 2f .set pop move $$1, ${4:z} .set arch=r4000 sc $$1, $1 beqz $$1, 1b .set pop 2: .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/cmpxchg.h", .line = 163, $); 0x00 ) != -1)) : $))) ) && ( 0 ); .set push; .set mips64r2; .rept 1; sync 0x00; .endr; .set pop; .else; ; .endif ' 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 cefc01fa65a7ebcc10cbf3c3bb2278a6a122deaf) Target: mips-unknown-linux Thread model: posix InstalledDir: /opt/cross/clang-cefc01fa65/bin clang-14: note: diagnostic msg: Makefile arch block certs crypto drivers fs include init ipc kernel lib mm nr_bisected scripts security sound source usr virt vim +/arch_supports_page_table_move +215 mm/mremap.c 212 213 #ifndef arch_supports_page_table_move 214 #define arch_supports_page_table_move arch_supports_page_table_move > 215 static inline bool arch_supports_page_table_move(void) 216 { 217 return IS_ENABLED(CONFIG_HAVE_MOVE_PMD) || 218 IS_ENABLED(CONFIG_HAVE_MOVE_PUD); 219 } 220 #endif 221 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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