Hi Ezequiel, I love your patch! Perhaps something to improve: [auto build test WARNING on linuxtv-media/master] [also build test WARNING on v5.11-rc1 next-20201223] [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/Ezequiel-Garcia/media-v4l2-async-Add-waiting-subdevices-debugfs/20201229-020838 base: git://linuxtv.org/media_tree.git master config: parisc-randconfig-s032-20201228 (attached as .config) compiler: hppa-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-184-g1b896707-dirty # https://github.com/0day-ci/linux/commit/6dd20991dbcacc09544c9b4fce904253171b9329 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Ezequiel-Garcia/media-v4l2-async-Add-waiting-subdevices-debugfs/20201229-020838 git checkout 6dd20991dbcacc09544c9b4fce904253171b9329 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=parisc 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/media/v4l2-subdev.h:14, from drivers/media/test-drivers/vimc/vimc-scaler.c:12: >> include/media/v4l2-async.h:145:35: warning: 'struct dentry' declared inside parameter list will not be visible outside of this definition or declaration 145 | void v4l2_async_debug_init(struct dentry *debugfs_dir); | ^~~~~~ vim +145 include/media/v4l2-async.h 139 140 /** 141 * v4l2_async_debug_init - Initialize debugging tools. 142 * 143 * @debugfs_dir: pointer to the parent debugfs &struct dentry 144 */ > 145 void v4l2_async_debug_init(struct dentry *debugfs_dir); 146 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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