Hi André, kernel test robot noticed the following build warnings: https://git-scm.com/docs/git-format-patch#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Andr-Almeida/tmpfs-Add-casefold-lookup-support/20240826-135457 base: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-everything patch link: https://lore.kernel.org/r/20240823173332.281211-4-andrealmeid%40igalia.com patch subject: [PATCH 3/5] tmpfs: Create casefold mount options config: x86_64-randconfig-161-20240827 (https://download.01.org/0day-ci/archive/20240829/202408290349.lp2Eq74b-lkp@xxxxxxxxx/config) compiler: clang version 18.1.5 (https://github.com/llvm/llvm-project 617a15a9eac96088ae5e9134248d8236e34b91b1) 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> | Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx> | Closes: https://lore.kernel.org/r/202408290349.lp2Eq74b-lkp@xxxxxxxxx/ smatch warnings: mm/shmem.c:4307 shmem_parse_opt_casefold() error: uninitialized symbol 'maj'. mm/shmem.c:4307 shmem_parse_opt_casefold() error: uninitialized symbol 'min'. mm/shmem.c:4307 shmem_parse_opt_casefold() error: uninitialized symbol 'rev'. vim +/maj +4307 mm/shmem.c a024e87c2944676 André Almeida 2024-08-23 4291 static int shmem_parse_opt_casefold(struct fs_context *fc, struct fs_parameter *param) a024e87c2944676 André Almeida 2024-08-23 4292 { a024e87c2944676 André Almeida 2024-08-23 4293 struct shmem_options *ctx = fc->fs_private; a024e87c2944676 André Almeida 2024-08-23 4294 unsigned int maj, min, rev, version_number; a024e87c2944676 André Almeida 2024-08-23 4295 char version[10]; a024e87c2944676 André Almeida 2024-08-23 4296 int ret; a024e87c2944676 André Almeida 2024-08-23 4297 struct unicode_map *encoding; a024e87c2944676 André Almeida 2024-08-23 4298 a024e87c2944676 André Almeida 2024-08-23 4299 if (strncmp(param->string, "utf8-", 5)) a024e87c2944676 André Almeida 2024-08-23 4300 return invalfc(fc, "Only utf8 encondings are supported"); a024e87c2944676 André Almeida 2024-08-23 4301 ret = strscpy(version, param->string + 5, sizeof(version)); a024e87c2944676 André Almeida 2024-08-23 4302 if (ret < 0) a024e87c2944676 André Almeida 2024-08-23 4303 return invalfc(fc, "Invalid enconding argument: %s", a024e87c2944676 André Almeida 2024-08-23 4304 param->string); a024e87c2944676 André Almeida 2024-08-23 4305 a024e87c2944676 André Almeida 2024-08-23 4306 utf8_parse_version(version, &maj, &min, &rev); No error checking a024e87c2944676 André Almeida 2024-08-23 @4307 version_number = UNICODE_AGE(maj, min, rev); ^^^^^^^^^^^^^ a024e87c2944676 André Almeida 2024-08-23 4308 encoding = utf8_load(version_number); a024e87c2944676 André Almeida 2024-08-23 4309 if (IS_ERR(encoding)) a024e87c2944676 André Almeida 2024-08-23 4310 return invalfc(fc, "Invalid utf8 version: %s", version); a024e87c2944676 André Almeida 2024-08-23 4311 pr_info("tmpfs: Using encoding provided by mount options: %s\n", a024e87c2944676 André Almeida 2024-08-23 4312 param->string); a024e87c2944676 André Almeida 2024-08-23 4313 ctx->encoding = encoding; a024e87c2944676 André Almeida 2024-08-23 4314 a024e87c2944676 André Almeida 2024-08-23 4315 return 0; a024e87c2944676 André Almeida 2024-08-23 4316 } a024e87c2944676 André Almeida 2024-08-23 4317 #else a024e87c2944676 André Almeida 2024-08-23 4318 static int shmem_parse_opt_casefold(struct fs_context *fc, struct fs_parameter *param) a024e87c2944676 André Almeida 2024-08-23 4319 { a024e87c2944676 André Almeida 2024-08-23 4320 return invalfc(fc, "tmpfs: No kernel support for casefold filesystems\n"); a024e87c2944676 André Almeida 2024-08-23 4321 } -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
