Hi Sargun, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on miklos-vfs/overlayfs-next] [also build test WARNING on linus/master v5.10-rc5 next-20201124] [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/Sargun-Dhillon/Make-overlayfs-volatile-mounts-reusable/20201125-184754 base: https://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs.git overlayfs-next config: arc-randconfig-m031-20201125 (attached as .config) compiler: arc-elf-gcc (GCC) 9.3.0 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/2fee0f742c2bb44771e51ed73ec7faf50165832a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Sargun-Dhillon/Make-overlayfs-volatile-mounts-reusable/20201125-184754 git checkout 2fee0f742c2bb44771e51ed73ec7faf50165832a # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc 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/linux/kernel.h:16, from include/linux/list.h:9, from include/linux/wait.h:7, from include/linux/wait_bit.h:8, from include/linux/fs.h:6, from fs/overlayfs/readdir.c:7: fs/overlayfs/readdir.c: In function 'ovl_verify_volatile_info': >> include/linux/kern_levels.h:5:18: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'unsigned int' [-Wformat=] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/linux/printk.h:140:10: note: in definition of macro 'no_printk' 140 | printk(fmt, ##__VA_ARGS__); \ | ^~~ include/linux/kern_levels.h:15:20: note: in expansion of macro 'KERN_SOH' 15 | #define KERN_DEBUG KERN_SOH "7" /* debug-level messages */ | ^~~~~~~~ include/linux/printk.h:430:12: note: in expansion of macro 'KERN_DEBUG' 430 | no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~ fs/overlayfs/readdir.c:1097:3: note: in expansion of macro 'pr_debug' 1097 | pr_debug("ovl_volatile_info is of size %d expected %ld\n", err, | ^~~~~~~~ fs/overlayfs/readdir.c:1097:56: note: format string is defined here 1097 | pr_debug("ovl_volatile_info is of size %d expected %ld\n", err, | ~~^ | | | long int | %d vim +5 include/linux/kern_levels.h 314ba3520e513a7 Joe Perches 2012-07-30 4 04d2c8c83d0e3ac Joe Perches 2012-07-30 @5 #define KERN_SOH "\001" /* ASCII Start Of Header */ 04d2c8c83d0e3ac Joe Perches 2012-07-30 6 #define KERN_SOH_ASCII '\001' 04d2c8c83d0e3ac Joe Perches 2012-07-30 7 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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