Hi Baokun, FYI, the error/warning still remains. tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 1588d318a9e388d05b6cf5e2a63134c8beb6a355 commit: c55fa11d134b40dbe1a4a5512a7fe43497cb6d5e [3415/3415] fscache: limit fscache_object_max_active to avoid blocking config: x86_64-buildonly-randconfig-006-20251215 (https://download.01.org/0day-ci/archive/20251220/202512202356.o0JDRNMp-lkp@i...) compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 1335a05ab8bc8339ce24be3a9da89d8c3f4e0571) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251220/202512202356.o0JDRNMp-lkp@i...) 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@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202512202356.o0JDRNMp-lkp@intel.com/ All warnings (new ones prefixed by >>): In file included from <built-in>:2: In file included from include/linux/compiler_types.h:69: include/linux/compiler-clang.h:34:9: warning: '__SANITIZE_ADDRESS__' macro redefined [-Wmacro-redefined] 34 | #define __SANITIZE_ADDRESS__ | ^ <built-in>:352:9: note: previous definition is here 352 | #define __SANITIZE_ADDRESS__ 1 | ^

...

fs/fscache/main.c:51:21: warning: unused variable 'fscache_min_object_max_active' [-Wunused-variable] 51 | static unsigned int fscache_min_object_max_active = FSCACHE_MIN_OBJECT_MAX_ACTIVE; | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/fscache/main.c:52:21: warning: unused variable 'fscache_min_op_max_active' [-Wunused-variable] 52 | static unsigned int fscache_min_op_max_active = FSCACHE_MIN_OBJECT_MAX_ACTIVE / 2; | ^~~~~~~~~~~~~~~~~~~~~~~~~ 3 warnings generated.

vim +/fscache_min_object_max_active +51 fs/fscache/main.c 46 47 /* these values serve as lower bounds, will be adjusted in fscache_init() */ 48 #define FSCACHE_MIN_OBJECT_MAX_ACTIVE 4 49 static unsigned int fscache_object_max_active = FSCACHE_MIN_OBJECT_MAX_ACTIVE; 50 static unsigned int fscache_op_max_active = FSCACHE_MIN_OBJECT_MAX_ACTIVE / 2;

51 static unsigned int fscache_min_object_max_active = FSCACHE_MIN_OBJECT_MAX_ACTIVE; 52 static unsigned int fscache_min_op_max_active = FSCACHE_MIN_OBJECT_MAX_ACTIVE / 2; 53

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