tree: https://gitee.com/openeuler/kernel.git OLK-5.10 head: 8bba4b17284e774544bd01d9ea5190546e93a849 commit: 33ba25cc4869bab81ad31784e7bbb25e5da2a2ad [2610/2610] anolis: fscache,cachefiles: add fscache_prepare_read() helper config: x86_64-buildonly-randconfig-001-20241230 (https://download.01.org/0day-ci/archive/20241231/202412310255.QS4rGSOC-lkp@i...) compiler: clang version 19.1.3 (https://github.com/llvm/llvm-project ab51eccf88f5321e7c60591c5546b254b6afab99) reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20241231/202412310255.QS4rGSOC-lkp@i...)

If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot lkp@intel.com | Closes: https://lore.kernel.org/oe-kbuild-all/202412310255.QS4rGSOC-lkp@intel.com/

All warnings (new ones prefixed by >>):

In file included from fs/cachefiles/rdwr.c:11: In file included from include/linux/swap.h:10: In file included from include/linux/memcontrol.h:13: In file included from include/linux/cgroup.h:28: In file included from include/linux/cgroup-defs.h:22: In file included from include/linux/bpf-cgroup.h:5: In file included from include/linux/bpf.h:21: In file included from include/linux/kallsyms.h:12: In file included from include/linux/mm.h:1587: include/linux/vmstat.h:431:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion] 431 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_" | ~~~~~~~~~~~ ^ ~~~

...

fs/cachefiles/rdwr.c:860:6: warning: no previous prototype for function 'cachefiles_readpages_work_func' [-Wmissing-prototypes]

860 | void cachefiles_readpages_work_func(struct work_struct *work) | ^ fs/cachefiles/rdwr.c:860:1: note: declare 'static' if the function is not intended to be used outside of this translation unit 860 | void cachefiles_readpages_work_func(struct work_struct *work) | ^ | static 2 warnings generated.

vim +/cachefiles_readpages_work_func +860 fs/cachefiles/rdwr.c

859

860 void cachefiles_readpages_work_func(struct work_struct *work)

861 { 862 struct cachefiles_kiocb *ki = container_of(work, struct cachefiles_kiocb, work); 863 int ret; 864 865 ret = vfs_iocb_iter_read(ki->iocb.ki_filp, &ki->iocb, &ki->iter); 866 /* complete the request if there's any progress or error occurred */ 867 if (ret != -EIOCBQUEUED) { 868 struct fscache_retrieval *op = ki->op; 869 unsigned int nr_pages = atomic_read(&op->n_pages); 870 unsigned int done_pages = 0; 871 int i, error; 872 873 if (ret > 0) 874 done_pages = ret / PAGE_SIZE; 875 876 for (i = 0; i < nr_pages; i++) { 877 error = i < done_pages ? 0 : -EIO; 878 fscache_end_io(op, ki->bvs[i].bv_page, error); 879 } 880 881 fscache_retrieval_complete(op, nr_pages); 882 fscache_put_retrieval(op); 883 kfree(ki); 884 } 885 } 886