Hi Jeffle, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on dhowells-fs/fscache-next] [cannot apply to xiang-erofs/dev-test ceph-client/for-linus linus/master v5.16-rc7 next-20211224] [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-demand-read-semantics/20211227-205742 base: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git fscache-next config: i386-randconfig-r005-20211227 (https://download.01.org/0day-ci/archive/20211227/202112272353.ekKESQX6-lkp@xxxxxxxxx/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 511726c64d3b6cca66f7c54d457d586aa3129f67) 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/54c300b4598e3f2836d8233681da387fe388cfda git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Jeffle-Xu/fscache-erofs-fscache-based-demand-read-semantics/20211227-205742 git checkout 54c300b4598e3f2836d8233681da387fe388cfda # 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/cachefiles/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> fs/cachefiles/io.c:564:5: warning: no previous prototype for function 'cachefiles_demand_read' [-Wmissing-prototypes] int cachefiles_demand_read(struct netfs_cache_resources *cres, ^ fs/cachefiles/io.c:564:1: note: declare 'static' if the function is not intended to be used outside of this translation unit int cachefiles_demand_read(struct netfs_cache_resources *cres, ^ static 1 warning generated. vim +/cachefiles_demand_read +564 fs/cachefiles/io.c 563 > 564 int cachefiles_demand_read(struct netfs_cache_resources *cres, 565 loff_t start_pos, size_t len) 566 { 567 struct cachefiles_object *object; 568 struct cachefiles_cache *cache; 569 struct cachefiles_req *req; 570 int ret; 571 572 object = cachefiles_cres_object(cres); 573 cache = object->volume->cache; 574 575 req = cachefiles_alloc_req(object, start_pos, len); 576 if (!req) 577 return -ENOMEM; 578 579 spin_lock(&cache->reqs_lock); 580 ret = idr_alloc(&cache->reqs, req, 0, 0, GFP_KERNEL); 581 if (ret >= 0) 582 req->req_in.id = ret; 583 spin_unlock(&cache->reqs_lock); 584 if (ret < 0) { 585 kfree(req); 586 return -ENOMEM; 587 } 588 589 wake_up_all(&cache->daemon_pollwq); 590 591 wait_for_completion(&req->done); 592 kfree(req); 593 594 return 0; 595 } 596 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
