[kbuild-all] [jlayton:ceph-fscache-iter 14/14] fs/ceph/addr.c:186:6: warning: no previous prototype for 'ceph_readpage_cb'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/jlayton/linux.git ceph-fscache-iter head: bd114d497163ff233e8a0402f76b39ada94b2164 commit: bd114d497163ff233e8a0402f76b39ada94b2164 [14/14] ceph: convert to using fscache_read_helper config: sh-allmodconfig (attached as .config) compiler: sh4-linux-gcc (GCC) 9.3.0 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 git checkout bd114d497163ff233e8a0402f76b39ada94b2164 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sh If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): 186 | void ceph_readpage_cb(struct ceph_osd_request *req) | ^~~~~~~~~~~~~~~~ vim +/ceph_readpage_cb +186 fs/ceph/addr.c 185 187 { 188 struct ceph_fs_client *fsc = req->r_priv; 189 struct ceph_fsc_request *cfreq = container_of(req, 190 struct ceph_fsc_request, 191 osd_req); 192 struct fscache_io_request *fsreq = &cfreq->fsc_req; 193 int err = req->r_result; 194 195 ceph_update_read_latency(&fsc->mdsc->metric, req->r_start_latency, 196 req->r_end_latency, err); 197 198 ceph_osdc_put_request(req); 199 dout("readpage result %d\n", err); 200 201 /* no object should mean success but no data */ 202 if (err == -ENOENT) 203 err = 0; 204 else if (err == -EBLACKLISTED) 205 fsc->blacklisted = true; 206 207 fsreq->error = err; 208 if (fsreq->io_done) 209 fsreq->io_done(fsreq); 210 } 211 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org