Hi Richard, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on jack-fs/fsnotify] [also build test WARNING on pcmoore-audit/next linux/master linus/master v5.18-rc7 next-20220516] [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/intel-lab-lkp/linux/commits/Richard-Guy-Briggs/fanotify-Allow-user-space-to-pass-back-additional-audit-info/20220517-044904 base: https://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git fsnotify config: m68k-allmodconfig (https://download.01.org/0day-ci/archive/20220517/202205171508.anzweWlm-lkp@xxxxxxxxx/config) compiler: m68k-linux-gcc (GCC) 11.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/intel-lab-lkp/linux/commit/4d1fc23ae264424a2007ef5a3cfc1b4dbc8d82db git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Richard-Guy-Briggs/fanotify-Allow-user-space-to-pass-back-additional-audit-info/20220517-044904 git checkout 4d1fc23ae264424a2007ef5a3cfc1b4dbc8d82db # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.3.0 make.cross W=1 O=build_dir ARCH=m68k SHELL=/bin/bash fs/notify/fanotify/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): In file included from include/asm-generic/bug.h:22, from arch/m68k/include/asm/bug.h:32, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from include/asm-generic/preempt.h:5, from ./arch/m68k/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from arch/m68k/include/asm/irqflags.h:6, from include/linux/irqflags.h:16, from arch/m68k/include/asm/atomic.h:6, from include/linux/atomic.h:7, from include/linux/rcupdate.h:25, from include/linux/sysctl.h:26, from include/linux/fanotify.h:5, from fs/notify/fanotify/fanotify_user.c:2: fs/notify/fanotify/fanotify_user.c: In function 'process_access_response': >> fs/notify/fanotify/fanotify_user.c:325:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 8 has type 'size_t' {aka 'unsigned int'} [-Wformat=] 325 | pr_debug("%s: group=%p fd=%d response=%u type=%u size=%lu\n", __func__, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ include/linux/printk.h:336:21: note: in definition of macro 'pr_fmt' 336 | #define pr_fmt(fmt) fmt | ^~~ include/linux/dynamic_debug.h:152:9: note: in expansion of macro '__dynamic_func_call' 152 | __dynamic_func_call(__UNIQUE_ID(ddebug), fmt, func, ##__VA_ARGS__) | ^~~~~~~~~~~~~~~~~~~ include/linux/dynamic_debug.h:162:9: note: in expansion of macro '_dynamic_func_call' 162 | _dynamic_func_call(fmt, __dynamic_pr_debug, \ | ^~~~~~~~~~~~~~~~~~ include/linux/printk.h:570:9: note: in expansion of macro 'dynamic_pr_debug' 570 | dynamic_pr_debug(fmt, ##__VA_ARGS__) | ^~~~~~~~~~~~~~~~ fs/notify/fanotify/fanotify_user.c:325:9: note: in expansion of macro 'pr_debug' 325 | pr_debug("%s: group=%p fd=%d response=%u type=%u size=%lu\n", __func__, | ^~~~~~~~ fs/notify/fanotify/fanotify_user.c:325:65: note: format string is defined here 325 | pr_debug("%s: group=%p fd=%d response=%u type=%u size=%lu\n", __func__, | ~~^ | | | long unsigned int | %u vim +325 fs/notify/fanotify/fanotify_user.c 316 317 static int process_access_response(struct fsnotify_group *group, 318 struct fanotify_response *response_struct, 319 size_t count) 320 { 321 struct fanotify_perm_event *event; 322 int fd = response_struct->fd; 323 u32 response = response_struct->response; 324 > 325 pr_debug("%s: group=%p fd=%d response=%u type=%u size=%lu\n", __func__, 326 group, fd, response, response_struct->extra_info_type, count); 327 if (fd < 0) 328 return -EINVAL; 329 /* 330 * make sure the response is valid, if invalid we do nothing and either 331 * userspace can send a valid response or we will clean it up after the 332 * timeout 333 */ 334 if (FAN_INVALID_RESPONSE_MASK(response)) 335 return -EINVAL; 336 if ((response & FAN_AUDIT) && !FAN_GROUP_FLAG(group, FAN_ENABLE_AUDIT)) 337 return -EINVAL; 338 if (response & FAN_EXTRA) { 339 if (count < offsetofend(struct fanotify_response, extra_info_type)) 340 return -EINVAL; 341 switch (response_struct->extra_info_type) { 342 case FAN_RESPONSE_INFO_NONE: 343 break; 344 case FAN_RESPONSE_INFO_AUDIT_RULE: 345 if (count < offsetofend(struct fanotify_response, extra_info)) 346 return -EINVAL; 347 break; 348 default: 349 return -EINVAL; 350 } 351 } 352 spin_lock(&group->notification_lock); 353 list_for_each_entry(event, &group->fanotify_data.access_list, 354 fae.fse.list) { 355 if (event->fd != fd) 356 continue; 357 358 list_del_init(&event->fae.fse.list); 359 finish_permission_event(group, event, response_struct); 360 wake_up(&group->fanotify_data.access_waitq); 361 return 0; 362 } 363 spin_unlock(&group->notification_lock); 364 365 return -ENOENT; 366 } 367 -- 0-DAY CI Kernel Test Service https://01.org/lkp
