tree: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-nonmm-unstable head: b065e14a3960a495216a032e6d383c104147c9ef commit: b065e14a3960a495216a032e6d383c104147c9ef [62/62] selftests/fpu: allow building on other architectures config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20240329/202403291254.0XqikdBT-lkp@xxxxxxxxx/config) compiler: gcc-12 (Ubuntu 12.3.0-9ubuntu2) 12.3.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240329/202403291254.0XqikdBT-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202403291254.0XqikdBT-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): lib/test_fpu_glue.c: In function 'test_fpu_init': >> lib/test_fpu_glue.c:41:14: error: implicit declaration of function 'kernel_fpu_available' [-Werror=implicit-function-declaration] 41 | if (!kernel_fpu_available()) | ^~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +/kernel_fpu_available +41 lib/test_fpu_glue.c 38 39 static int __init test_fpu_init(void) 40 { > 41 if (!kernel_fpu_available()) 42 return -EINVAL; 43 44 selftest_dir = debugfs_create_dir("selftest_helpers", NULL); 45 if (!selftest_dir) 46 return -ENOMEM; 47 48 debugfs_create_file_unsafe("test_fpu", 0444, selftest_dir, NULL, 49 &test_fpu_fops); 50 51 return 0; 52 } 53 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki