Hi Gabriel,

I love your patch! Yet something to improve:

[auto build test ERROR on ext3/fsnotify]
[also build test ERROR on ext4/dev ext3/for_next linus/master v5.14-rc4 next-20210804]
[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/20210805-001201
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs.git fsnotify
config: powerpc-ppc64_defconfig (attached as .config)
compiler: powerpc-linux-gcc (GCC) 10.3.0
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/0day-ci/linux/commit/e5294af07c565333b5efb87d6b431d7d601a1043
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Gabriel-Krisman-Bertazi/File-system-wide-monitoring/20210805-001201
        git checkout e5294af07c565333b5efb87d6b431d7d601a1043
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=powerpc 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   In file included from include/linux/fsnotify.h:15,
                    from arch/powerpc/platforms/cell/spufs/inode.c:15:
   include/linux/fsnotify_backend.h:367:27: error: 'FSNOTIFY_MARK_FLAG_ATTACHED' defined but not used [-Werror=unused-const-variable=]
     367 | static const unsigned int FSNOTIFY_MARK_FLAG_##flag = \
         |                           ^~~~~~~~~~~~~~~~~~~
   include/linux/fsnotify_backend.h:379:1: note: in expansion of macro 'FSNOTIFY_MARK_FLAG'
     379 | FSNOTIFY_MARK_FLAG(ATTACHED);
         | ^~~~~~~~~~~~~~~~~~
   include/linux/fsnotify_backend.h:367:27: error: 'FSNOTIFY_MARK_FLAG_ALIVE' defined but not used [-Werror=unused-const-variable=]
     367 | static const unsigned int FSNOTIFY_MARK_FLAG_##flag = \
         |                           ^~~~~~~~~~~~~~~~~~~
   include/linux/fsnotify_backend.h:378:1: note: in expansion of macro 'FSNOTIFY_MARK_FLAG'
     378 | FSNOTIFY_MARK_FLAG(ALIVE);
         | ^~~~~~~~~~~~~~~~~~
>> include/linux/fsnotify_backend.h:367:27: error: 'FSNOTIFY_MARK_FLAG_IGNORED_SURV_MODIFY' defined but not used [-Werror=unused-const-variable=]
     367 | static const unsigned int FSNOTIFY_MARK_FLAG_##flag = \
         |                           ^~~~~~~~~~~~~~~~~~~
   include/linux/fsnotify_backend.h:377:1: note: in expansion of macro 'FSNOTIFY_MARK_FLAG'
     377 | FSNOTIFY_MARK_FLAG(IGNORED_SURV_MODIFY);
         | ^~~~~~~~~~~~~~~~~~
   cc1: all warnings being treated as errors


vim +/FSNOTIFY_MARK_FLAG_IGNORED_SURV_MODIFY +367 include/linux/fsnotify_backend.h

   365	
   366	#define FSNOTIFY_MARK_FLAG(flag)	\
 > 367	static const unsigned int FSNOTIFY_MARK_FLAG_##flag = \
   368		(1 << FSN_MARK_FL_BIT_##flag)
   369	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org