Hi Kent, kernel test robot noticed the following build errors: [auto build test ERROR on tip/locking/core] [also build test ERROR on net/main net-next/main linus/master v6.8-rc1 next-20240125] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Kent-Overstreet/fs-pipe-Convert-to-lockdep_cmp_fn/20240127-101832 base: tip/locking/core patch link: https://lore.kernel.org/r/20240127020833.487907-3-kent.overstreet%40linux.dev patch subject: [PATCH 2/4] pktcdvd: kill mutex_lock_nested() usage config: mips-randconfig-r063-20240127 (https://download.01.org/0day-ci/archive/20240128/202401281210.ZqZ0bZlb-lkp@xxxxxxxxx/config) compiler: clang version 15.0.7 (https://github.com/llvm/llvm-project.git 8dfdcc7b7bf66834a761bd8de445840ef68e4d1a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240128/202401281210.ZqZ0bZlb-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/202401281210.ZqZ0bZlb-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> kernel/locking/lockdep.c:4925:9: error: call to undeclared function 'cmp_int'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration] return cmp_int((unsigned long) a, (unsigned long) b); ^ kernel/locking/lockdep.c:4925:9: note: did you mean 'smp_init'? include/linux/smp.h:225:20: note: 'smp_init' declared here static inline void smp_init(void) { } ^ 1 error generated. vim +/cmp_int +4925 kernel/locking/lockdep.c 4920 4921 #ifdef CONFIG_PROVE_LOCKING 4922 int lockdep_ptr_order_cmp_fn(const struct lockdep_map *a, 4923 const struct lockdep_map *b) 4924 { > 4925 return cmp_int((unsigned long) a, (unsigned long) b); 4926 } 4927 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
