tree: https://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git iversion head: 8c967bcb92934a21384bde38df3eda9c854d76be commit: 8c967bcb92934a21384bde38df3eda9c854d76be [18/18] ext4: update times after I/O in write codepaths config: loongarch-allyesconfig compiler: loongarch64-linux-gcc (GCC) 12.1.0 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://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git/commit/?id=8c967bcb92934a21384bde38df3eda9c854d76be git remote add jlayton https://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git git fetch --no-tags jlayton iversion git checkout 8c967bcb92934a21384bde38df3eda9c854d76be # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=loongarch SHELL=/bin/bash fs/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from include/asm-generic/bug.h:22, from arch/loongarch/include/asm/bug.h:21, from include/linux/bug.h:5, from include/linux/thread_info.h:13, from include/asm-generic/preempt.h:5, from ./arch/loongarch/include/generated/asm/preempt.h:1, from include/linux/preempt.h:78, from include/linux/spinlock.h:55, from include/linux/wait.h:9, from include/linux/wait_bit.h:8, from include/linux/fs.h:6, from fs/ext4/file.c:23: fs/ext4/file.c: In function 'ext4_update_iversion': >> include/linux/kern_levels.h:5:25: warning: format '%zd' expects argument of type 'signed size_t', but argument 2 has type 'int' [-Wformat=] 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/linux/printk.h:436:25: note: in definition of macro 'printk_index_wrap' 436 | _p_func(_fmt, ##__VA_ARGS__); \ | ^~~~ include/linux/once_lite.h:31:25: note: in expansion of macro 'printk' 31 | func(__VA_ARGS__); \ | ^~~~ include/linux/once_lite.h:11:9: note: in expansion of macro 'DO_ONCE_LITE_IF' 11 | DO_ONCE_LITE_IF(true, func, ##__VA_ARGS__) | ^~~~~~~~~~~~~~~ include/linux/printk.h:603:9: note: in expansion of macro 'DO_ONCE_LITE' 603 | DO_ONCE_LITE(printk, fmt, ##__VA_ARGS__) | ^~~~~~~~~~~~ include/linux/printk.h:622:9: note: in expansion of macro 'printk_once' 622 | printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~ include/linux/kern_levels.h:12:25: note: in expansion of macro 'KERN_SOH' 12 | #define KERN_WARNING KERN_SOH "4" /* warning conditions */ | ^~~~~~~~ include/linux/printk.h:622:21: note: in expansion of macro 'KERN_WARNING' 622 | printk_once(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__) | ^~~~~~~~~~~~ fs/ext4/file.c:276:17: note: in expansion of macro 'pr_warn_once' 276 | pr_warn_once("ext4: failed to update i_version after write: %zd\n", ret); | ^~~~~~~~~~~~ vim +5 include/linux/kern_levels.h 314ba3520e513a Joe Perches 2012-07-30 4 04d2c8c83d0e3a Joe Perches 2012-07-30 @5 #define KERN_SOH "\001" /* ASCII Start Of Header */ 04d2c8c83d0e3a Joe Perches 2012-07-30 6 #define KERN_SOH_ASCII '\001' 04d2c8c83d0e3a Joe Perches 2012-07-30 7 :::::: The code at line 5 was first introduced by commit :::::: 04d2c8c83d0e3ac5f78aeede51babb3236200112 printk: convert the format for KERN_ to a 2 byte pattern :::::: TO: Joe Perches :::::: CC: Linus Torvalds -- 0-DAY CI Kernel Test Service https://01.org/lkp