Hi Song, kernel test robot noticed the following build warnings: [auto build test WARNING on jack-fs/fsnotify] [also build test WARNING on linus/master v6.12 next-20241125] [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/Song-Liu/fanotify-Introduce-fanotify-filter/20241125-110818 base: https://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git fsnotify patch link: https://lore.kernel.org/r/20241122225958.1775625-2-song%40kernel.org patch subject: [PATCH v3 fanotify 1/2] fanotify: Introduce fanotify filter config: x86_64-randconfig-123-20241125 (https://download.01.org/0day-ci/archive/20241126/202411260746.XEdTrLMj-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241126/202411260746.XEdTrLMj-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/202411260746.XEdTrLMj-lkp@xxxxxxxxx/ sparse warnings: (new ones prefixed by >>) >> fs/notify/fanotify/fanotify_filter.c:271:21: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct fanotify_filter_hook *filter_hook @@ got struct fanotify_filter_hook [noderef] __rcu *filter_hook @@ fs/notify/fanotify/fanotify_filter.c:271:21: sparse: expected struct fanotify_filter_hook *filter_hook fs/notify/fanotify/fanotify_filter.c:271:21: sparse: got struct fanotify_filter_hook [noderef] __rcu *filter_hook fs/notify/fanotify/fanotify_filter.c: note: in included file (through include/linux/kobject.h, include/linux/fanotify.h): include/linux/list.h:83:21: sparse: sparse: self-comparison always evaluates to true -- >> fs/notify/fanotify/fanotify.c:1015:63: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected struct fanotify_filter_hook *filter_hook @@ got struct fanotify_filter_hook [noderef] __rcu *filter_hook @@ fs/notify/fanotify/fanotify.c:1015:63: sparse: expected struct fanotify_filter_hook *filter_hook fs/notify/fanotify/fanotify.c:1015:63: sparse: got struct fanotify_filter_hook [noderef] __rcu *filter_hook vim +271 fs/notify/fanotify/fanotify_filter.c 262 263 /* 264 * fanotify_filter_del - Delete a filter from fsnotify_group. 265 */ 266 void fanotify_filter_del(struct fsnotify_group *group) 267 { 268 struct fanotify_filter_hook *filter_hook; 269 270 fsnotify_group_lock(group); > 271 filter_hook = group->fanotify_data.filter_hook; 272 if (!filter_hook) 273 goto out; 274 275 rcu_assign_pointer(group->fanotify_data.filter_hook, NULL); 276 fanotify_filter_hook_free(filter_hook); 277 278 out: 279 fsnotify_group_unlock(group); 280 } 281 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
