tree: git://git.infradead.org/users/hch/block.git bio_alloc-cleanup head: f033ae7a0e5d8529000f3760d24650e8c468fb65 commit: 41af664fdb39fe3a5cc1e2d6639795ee98efe514 [37/41] f2fs: return a f2fs_dev_info from f2fs_target_device config: i386-randconfig-a005 (https://download.01.org/0day-ci/archive/20220115/202201152205.Xjy1E3ng-lk...) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): git remote add hch-block git://git.infradead.org/users/hch/block.git git fetch --no-tags hch-block bio_alloc-cleanup git checkout 41af664fdb39fe3a5cc1e2d6639795ee98efe514 # save the config file to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash fs/f2fs/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): In file included from include/linux/printk.h:7, from include/linux/kernel.h:20, from arch/x86/include/asm/percpu.h:27, from arch/x86/include/asm/preempt.h:6, 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/f2fs/segment.c:8: fs/f2fs/segment.c: In function '__f2fs_issue_discard_zone': 5 | #define KERN_SOH "\001" /* ASCII Start Of Header */ | ^~~~~~ include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH' 11 | #define KERN_ERR KERN_SOH "3" /* error conditions */ | ^~~~~~~~ fs/f2fs/f2fs.h:2241:19: note: in expansion of macro 'KERN_ERR' 2241 | f2fs_printk(sbi, KERN_ERR fmt, ##__VA_ARGS__) | ^~~~~~~~ fs/f2fs/segment.c:1863:4: note: in expansion of macro 'f2fs_err' 1863 | f2fs_err(sbi, "(%ld) %s: Unaligned zone reset attempted (block %x + %x)", | ^~~~~~~~ fs/f2fs/segment.c:1863:22: note: format string is defined here 1863 | f2fs_err(sbi, "(%ld) %s: Unaligned zone reset attempted (block %x + %x)", | ~~^ | | | 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 :::::: The code at line 5 was first introduced by commit :::::: 04d2c8c83d0e3ac5f78aeede51babb3236200112 printk: convert the format for KERN_<LEVEL> to a 2 byte pattern :::::: TO: Joe Perches <joe(a)perches.com&gt; :::::: CC: Linus Torvalds <torvalds(a)linux-foundation.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org