Hi Jeffle, Thank you for the patch! Yet something to improve: [auto build test ERROR on trondmy-nfs/linux-next] [also build test ERROR on rostedt-trace/for-next linus/master v5.17] [cannot apply to xiang-erofs/dev-test dhowells-fs/fscache-next next-20220325] [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/Jeffle-Xu/fscache-erofs-fscache-based-on-demand-read-semantics/20220325-203555 base: git://git.linux-nfs.org/projects/trondmy/linux-nfs.git linux-next config: i386-randconfig-a002 (https://download.01.org/0day-ci/archive/20220326/202203260720.uA5o7k5w-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 0f6d9501cf49ce02937099350d08f20c4af86f3d) 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/ec8aa2f84eb47244377e4b822dd77d82ee54714a git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jeffle-Xu/fscache-erofs-fscache-based-on-demand-read-semantics/20220325-203555 git checkout ec8aa2f84eb47244377e4b822dd77d82ee54714a # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash fs/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>): In file included from fs/cachefiles/cache.c:11: >> fs/cachefiles/internal.h:285:9: warning: no previous prototype for function 'cachefiles_ondemand_daemon_read' [-Wmissing-prototypes] ssize_t cachefiles_ondemand_daemon_read(struct cachefiles_cache *cache, ^ fs/cachefiles/internal.h:285:1: note: declare 'static' if the function is not intended to be used outside of this translation unit ssize_t cachefiles_ondemand_daemon_read(struct cachefiles_cache *cache, ^ static 1 warning generated. -- >> ld.lld: error: duplicate symbol: cachefiles_ondemand_daemon_read >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/cache.o:(cachefiles_ondemand_daemon_read) >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/daemon.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: cachefiles_ondemand_daemon_read >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/cache.o:(cachefiles_ondemand_daemon_read) >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/interface.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: cachefiles_ondemand_daemon_read >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/cache.o:(cachefiles_ondemand_daemon_read) >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/io.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: cachefiles_ondemand_daemon_read >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/cache.o:(cachefiles_ondemand_daemon_read) >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/key.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: cachefiles_ondemand_daemon_read >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/cache.o:(cachefiles_ondemand_daemon_read) >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/main.o:(.text+0x38C0) -- >> ld.lld: error: duplicate symbol: cachefiles_ondemand_daemon_read >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/cache.o:(cachefiles_ondemand_daemon_read) >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/namei.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: cachefiles_ondemand_daemon_read >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/cache.o:(cachefiles_ondemand_daemon_read) >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/security.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: cachefiles_ondemand_daemon_read >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/cache.o:(cachefiles_ondemand_daemon_read) >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/volume.o:(.text+0x0) -- >> ld.lld: error: duplicate symbol: cachefiles_ondemand_daemon_read >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/cache.o:(cachefiles_ondemand_daemon_read) >>> defined at internal.h:287 (fs/cachefiles/internal.h:287) >>> fs/cachefiles/xattr.o:(.text+0x0) -- 0-DAY CI Kernel Test Service https://01.org/lkp
