Hi Gabriel, I love your patch! Yet something to improve: [auto build test ERROR on ext3/fsnotify] [also build test ERROR on ext4/dev linus/master v5.13 next-20210629] [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] url: https://github.com/0day-ci/linux/commits/Gabriel-Krisman-Bertazi/File-system-wide-monitoring/20210630-031347 base: https://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git fsnotify config: i386-tinyconfig (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/dca640915c7b840656b052e138effd501bd5d5e1 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Gabriel-Krisman-Bertazi/File-system-wide-monitoring/20210630-031347 git checkout dca640915c7b840656b052e138effd501bd5d5e1 # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All errors (new ones prefixed by >>): In file included from fs/open.c:12: include/linux/fsnotify.h: In function 'fsnotify_name': >> include/linux/fsnotify.h:33:2: error: implicit declaration of function '__fsnotify'; did you mean 'fsnotify'? [-Werror=implicit-function-declaration] 33 | __fsnotify(mask, &(struct fsnotify_event_info) { | ^~~~~~~~~~ | fsnotify cc1: some warnings being treated as errors vim +33 include/linux/fsnotify.h 19 20 /* 21 * Notify this @dir inode about a change in a child directory entry. 22 * The directory entry may have turned positive or negative or its inode may 23 * have changed (i.e. renamed over). 24 * 25 * Unlike fsnotify_parent(), the event will be reported regardless of the 26 * FS_EVENT_ON_CHILD mask on the parent inode and will not be reported if only 27 * the child is interested and not the parent. 28 */ 29 static inline void fsnotify_name(struct inode *dir, __u32 mask, 30 struct inode *child, 31 const struct qstr *name, u32 cookie) 32 { > 33 __fsnotify(mask, &(struct fsnotify_event_info) { 34 .data = child, .data_type = FSNOTIFY_EVENT_INODE, 35 .dir = dir, .name = name, .cookie = cookie, 36 }); 37 } 38 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org