tree: https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git fscache-rewrite-indexing head: 5914ee72cd59ac43f27adae6340e8219592462d5 commit: 7fc886b896abeed2560da268c703bb6af87c8e89 [61/80] afs: Copy local writes to the cache when writing to the server config: x86_64-randconfig-a001-20211012 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git/com... git remote add dhowells-fs https://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git git fetch --no-tags dhowells-fs fscache-rewrite-indexing git checkout 7fc886b896abeed2560da268c703bb6af87c8e89 # save the attached .config to linux build tree mkdir build_dir make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): ld: fs/afs/write.o: in function `afs_set_page_dirty': ld: fs/afs/write.o: in function `fscache_clear_page_bits': ld: fs/afs/write.o: in function `fscache_write_to_cache': vim +26 fs/afs/write.c 16 17 static void afs_write_to_cache(struct afs_vnode *vnode, loff_t start, size_t len, 18 loff_t i_size); 19 20 /* 21 * Mark a page as having been made dirty and thus needing writeback. We also 22 * need to pin the cache object to write back to. 23 */ 24 int afs_set_page_dirty(struct page *page) 25 { 27 } 28 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org