Hi Thomas, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: d76913908102044f14381df865bb74df17a538cb commit: 7505576d1c1ac0cfe85fdf90999433dd8b673012 MIPS: add support for SGI Octane (IP30) date: 12 months ago config: mips-randconfig-r024-20201025 (attached as .config) compiler: mips64-linux-gcc (GCC) 9.3.0 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7505576d1c1ac0cfe85fdf90999433dd8b673012 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 7505576d1c1ac0cfe85fdf90999433dd8b673012 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All errors (new ones prefixed by >>): mips64-linux-ld: arch/mips/kernel/signal.o: in function `restore_hw_fp_context': >> arch/mips/kernel/signal.c:141: undefined reference to `_restore_fp_context' mips64-linux-ld: arch/mips/kernel/signal.o: in function `save_hw_fp_context': >> arch/mips/kernel/signal.c:132: undefined reference to `_save_fp_context' mips64-linux-ld: arch/mips/kernel/traps.o: in function `trap_init': >> arch/mips/kernel/traps.c:2408: undefined reference to `handle_fpe' >> mips64-linux-ld: arch/mips/kernel/traps.c:2412: undefined reference to >> `handle_fpe' >> mips64-linux-ld: arch/mips/kernel/traps.c:2412: undefined reference to >> `handle_fpe' >> mips64-linux-ld: arch/mips/kernel/traps.c:2412: undefined reference to >> `handle_fpe' >> mips64-linux-ld: arch/mips/kernel/traps.c:2412: undefined reference to >> `handle_fpe' vim +141 arch/mips/kernel/signal.c 4eec81d7d8b2127 Paul Burton 2018-11-07 122 2db9ca0a355100c Paul Burton 2015-07-27 123 /* 2db9ca0a355100c Paul Burton 2015-07-27 124 * Wrappers for the assembly _{save,restore}_fp_context functions. 2db9ca0a355100c Paul Burton 2015-07-27 125 */ 2db9ca0a355100c Paul Burton 2015-07-27 126 static int save_hw_fp_context(void __user *sc) 2db9ca0a355100c Paul Burton 2015-07-27 127 { 2db9ca0a355100c Paul Burton 2015-07-27 128 struct mips_abi *abi = current->thread.abi; 2db9ca0a355100c Paul Burton 2015-07-27 129 uint64_t __user *fpregs = sc + abi->off_sc_fpregs; 2db9ca0a355100c Paul Burton 2015-07-27 130 uint32_t __user *csr = sc + abi->off_sc_fpc_csr; 2db9ca0a355100c Paul Burton 2015-07-27 131 2db9ca0a355100c Paul Burton 2015-07-27 @132 return _save_fp_context(fpregs, csr); 2db9ca0a355100c Paul Burton 2015-07-27 133 } 2db9ca0a355100c Paul Burton 2015-07-27 134 2db9ca0a355100c Paul Burton 2015-07-27 135 static int restore_hw_fp_context(void __user *sc) 2db9ca0a355100c Paul Burton 2015-07-27 136 { 2db9ca0a355100c Paul Burton 2015-07-27 137 struct mips_abi *abi = current->thread.abi; 2db9ca0a355100c Paul Burton 2015-07-27 138 uint64_t __user *fpregs = sc + abi->off_sc_fpregs; 2db9ca0a355100c Paul Burton 2015-07-27 139 uint32_t __user *csr = sc + abi->off_sc_fpc_csr; 2db9ca0a355100c Paul Burton 2015-07-27 140 2db9ca0a355100c Paul Burton 2015-07-27 @141 return _restore_fp_context(fpregs, csr); 2db9ca0a355100c Paul Burton 2015-07-27 142 } 2db9ca0a355100c Paul Burton 2015-07-27 143 :::::: The code at line 141 was first introduced by commit :::::: 2db9ca0a355100c40d1bef2aae3b9d9cf199cd04 MIPS: Use struct mips_abi offsets to save FP context :::::: TO: Paul Burton <paul.bur...@imgtec.com> :::::: CC: Ralf Baechle <r...@linux-mips.org> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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