tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: c9f2baaa18b5ea8f006a2b3a616da9597c71d15e commit: af66b51563ad7e625602809a0f4c45154df063d1 [8396/9381] file: convert to SLAB_TYPESAFE_BY_RCU config: powerpc64-allyesconfig (https://download.01.org/0day-ci/archive/20231004/202310041442.iukUNRze-lkp@xxxxxxxxx/config) compiler: clang version 17.0.0 (https://github.com/llvm/llvm-project.git 4a5ac14ee968ff0ad5d2cc1ffa0299048db4c88a) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231004/202310041442.iukUNRze-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/202310041442.iukUNRze-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> arch/powerpc/platforms/cell/spufs/coredump.c:79:6: warning: variable 'ctx' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized] 79 | if (file) { | ^~~~ arch/powerpc/platforms/cell/spufs/coredump.c:85:9: note: uninitialized use occurs here 85 | return ctx; | ^~~ arch/powerpc/platforms/cell/spufs/coredump.c:79:2: note: remove the 'if' if its condition is always true 79 | if (file) { | ^~~~~~~~~~ arch/powerpc/platforms/cell/spufs/coredump.c:69:25: note: initialize the variable 'ctx' to silence this warning 69 | struct spu_context *ctx; | ^ | = NULL 1 warning generated. vim +79 arch/powerpc/platforms/cell/spufs/coredump.c 54 55 /* 56 * The additional architecture-specific notes for Cell are various 57 * context files in the spu context. 58 * 59 * This function iterates over all open file descriptors and sees 60 * if they are a directory in spufs. In that case we use spufs 61 * internal functionality to dump them without needing to actually 62 * open the files. 63 */ 64 /* 65 * descriptor table is not shared, so files can't change or go away. 66 */ 67 static struct spu_context *coredump_next_context(int *fd) 68 { 69 struct spu_context *ctx; 70 struct file *file; 71 int n = iterate_fd(current->files, *fd, match_context, NULL); 72 if (!n) 73 return NULL; 74 *fd = n - 1; 75 76 rcu_read_lock(); 77 file = lookup_fdget_rcu(*fd); 78 rcu_read_unlock(); > 79 if (file) { 80 ctx = SPUFS_I(file_inode(file))->i_ctx; 81 get_spu_context(ctx); 82 fput(file); 83 } 84 85 return ctx; 86 } 87 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
