CC: kbuild-...@lists.01.org BCC: l...@intel.com CC: "GNU/Weeb Mailing List" <g...@vger.gnuweeb.org> CC: linux-ker...@vger.kernel.org TO: David Howells <dhowe...@redhat.com>
tree: https://github.com/ammarfaizi2/linux-block dhowells/linux-fs/netfs-linked-list head: ce4670495468b797b0c5927fcb661bc0da48b9ab commit: 2dc27084e13c29183f0a6853b81e5fa2941948e3 [46/61] netfs: Generate a write request from ->writepages() :::::: branch date: 2 days ago :::::: commit date: 3 days ago config: x86_64-randconfig-m001 (https://download.01.org/0day-ci/archive/20220703/202207031839.j9m8zunm-...@intel.com/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <l...@intel.com> Reported-by: Dan Carpenter <dan.carpen...@oracle.com> smatch warnings: fs/netfs/buffered_flush.c:243 netfs_check_dirty_list() warn: ignoring unreachable code. fs/netfs/buffered_flush.c:687 netfs_find_writeback_start() error: uninitialized symbol 'ret'. vim +243 fs/netfs/buffered_flush.c 2dc27084e13c29 David Howells 2021-06-29 233 2dc27084e13c29 David Howells 2021-06-29 234 void netfs_check_dirty_list(char c, const struct list_head *list, 2dc27084e13c29 David Howells 2021-06-29 235 const struct netfs_dirty_region *star) 2dc27084e13c29 David Howells 2021-06-29 236 { 2dc27084e13c29 David Howells 2021-06-29 237 const struct netfs_dirty_region *r, *q; 2dc27084e13c29 David Howells 2021-06-29 238 const struct list_head *p; 2dc27084e13c29 David Howells 2021-06-29 239 int i = 0; 2dc27084e13c29 David Howells 2021-06-29 240 2dc27084e13c29 David Howells 2021-06-29 241 return; 2dc27084e13c29 David Howells 2021-06-29 242 2dc27084e13c29 David Howells 2021-06-29 @243 if (list->next == list) { 2dc27084e13c29 David Howells 2021-06-29 244 BUG_ON(list->prev != list); 2dc27084e13c29 David Howells 2021-06-29 245 return; 2dc27084e13c29 David Howells 2021-06-29 246 } 2dc27084e13c29 David Howells 2021-06-29 247 BUG_ON(list->prev == list); 2dc27084e13c29 David Howells 2021-06-29 248 2dc27084e13c29 David Howells 2021-06-29 249 list_for_each(p, list) { 2dc27084e13c29 David Howells 2021-06-29 250 r = list_entry(p, struct netfs_dirty_region, dirty_link); 2dc27084e13c29 David Howells 2021-06-29 251 if (p->prev->next != p || 2dc27084e13c29 David Howells 2021-06-29 252 p->next->prev != p || 2dc27084e13c29 David Howells 2021-06-29 253 r->last < r->first || 2dc27084e13c29 David Howells 2021-06-29 254 r->from > r->to || 2dc27084e13c29 David Howells 2021-06-29 255 r->from < r->first * PAGE_SIZE || 2dc27084e13c29 David Howells 2021-06-29 256 r->to > (r->last + 1) * PAGE_SIZE) 2dc27084e13c29 David Howells 2021-06-29 257 goto failed; 2dc27084e13c29 David Howells 2021-06-29 258 if (!list_is_first(p, list)) { 2dc27084e13c29 David Howells 2021-06-29 259 q = list_prev_entry(r, dirty_link); 2dc27084e13c29 David Howells 2021-06-29 260 if (q->last >= r->first) 2dc27084e13c29 David Howells 2021-06-29 261 goto failed; 2dc27084e13c29 David Howells 2021-06-29 262 } 2dc27084e13c29 David Howells 2021-06-29 263 } 2dc27084e13c29 David Howells 2021-06-29 264 2dc27084e13c29 David Howells 2021-06-29 265 return; 2dc27084e13c29 David Howells 2021-06-29 266 2dc27084e13c29 David Howells 2021-06-29 267 failed: 2dc27084e13c29 David Howells 2021-06-29 268 kdebug(""); 2dc27084e13c29 David Howells 2021-06-29 269 list_for_each(p, list) { 2dc27084e13c29 David Howells 2021-06-29 270 r = list_entry(p, struct netfs_dirty_region, dirty_link); 2dc27084e13c29 David Howells 2021-06-29 271 kdebug("CHECK-%c[%x]%c D=%03x %04lx-%04lx %06llx-%06llx", 2dc27084e13c29 David Howells 2021-06-29 272 c, i++, r == star ? '*' : ' ', 2dc27084e13c29 David Howells 2021-06-29 273 r->debug_id, r->first, r->last, r->from, r->to); 2dc27084e13c29 David Howells 2021-06-29 274 BUG_ON(p->prev->next != p); 2dc27084e13c29 David Howells 2021-06-29 275 BUG_ON(p->next->prev != p); 2dc27084e13c29 David Howells 2021-06-29 276 BUG_ON(r->last < r->first); 2dc27084e13c29 David Howells 2021-06-29 277 BUG_ON(r->from > r->to); 2dc27084e13c29 David Howells 2021-06-29 278 BUG_ON(r->from < r->first * PAGE_SIZE); 2dc27084e13c29 David Howells 2021-06-29 279 BUG_ON(r->to > (r->last + 1) * PAGE_SIZE); 2dc27084e13c29 David Howells 2021-06-29 280 if (!list_is_first(p, list)) { 2dc27084e13c29 David Howells 2021-06-29 281 q = list_prev_entry(r, dirty_link); 2dc27084e13c29 David Howells 2021-06-29 282 BUG_ON(q->last >= r->first); 2dc27084e13c29 David Howells 2021-06-29 283 } 2dc27084e13c29 David Howells 2021-06-29 284 } 2dc27084e13c29 David Howells 2021-06-29 285 } 2dc27084e13c29 David Howells 2021-06-29 286 -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
