tree: git://git.infradead.org/users/hch/block.git integrity-devirtualize head: 5221a55f02c9f118f22c061fac410f3b70b26918 commit: 5221a55f02c9f118f22c061fac410f3b70b26918 [30/30] block: devirtualize the integrity processing config: x86_64-rhel-8.3-kselftests (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): git remote add hch-block git://git.infradead.org/users/hch/block.git git fetch --no-tags hch-block integrity-devirtualize git checkout 5221a55f02c9f118f22c061fac410f3b70b26918 # save the attached .config to linux build tree make W=1 ARCH=x86_64 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 >>): block/blk-core.c: In function 'blk_update_request': 1423 | t10_pi_need_remap(rq)) | ^~ block/blk-core.c:1423:24: note: each undeclared identifier is reported only once for each function it appears in vim +/rq +1423 block/blk-core.c 1385 1386 /** 1387 * blk_update_request - Special helper function for request stacking drivers 1388 * @req: the request being processed 1389 * @error: block status code 1390 * @nr_bytes: number of bytes to complete @req 1391 * 1392 * Description: 1393 * Ends I/O on a number of bytes attached to @req, but doesn't complete 1394 * the request structure even if @req doesn't have leftover. 1395 * If @req has leftover, sets it up for the next range of segments. 1396 * 1397 * This special helper function is only for request stacking drivers 1398 * (e.g. request-based dm) so that they can handle partial completion. 1399 * Actual device drivers should use blk_mq_end_request instead. 1400 * 1401 * Passing the result of blk_rq_bytes() as @nr_bytes guarantees 1402 * %false return from this function. 1403 * 1404 * Note: 1405 * The RQF_SPECIAL_PAYLOAD flag is ignored on purpose in both 1406 * blk_rq_bytes() and in blk_update_request(). 1407 * 1408 * Return: 1409 * %false - this request doesn't have any more data 1410 * %true - this request has more data 1411 **/ 1412 bool blk_update_request(struct request *req, blk_status_t error, 1413 unsigned int nr_bytes) 1414 { 1415 int total_bytes; 1416 1417 trace_block_rq_complete(req, blk_status_to_errno(error), nr_bytes); 1418 1419 if (!req->bio) 1420 return false; 1421 1422 if (req_op(req) == REQ_OP_READ && error == BLK_STS_OK && 1424 t10_pi_type1_complete(req, nr_bytes); 1425 1426 if (unlikely(error && !blk_rq_is_passthrough(req) && 1427 !(req->rq_flags & RQF_QUIET))) 1428 print_req_error(req, error, __func__); 1429 1430 blk_account_io_completion(req, nr_bytes); 1431 1432 total_bytes = 0; 1433 while (req->bio) { 1434 struct bio *bio = req->bio; 1435 unsigned bio_bytes = min(bio->bi_iter.bi_size, nr_bytes); 1436 1437 if (bio_bytes == bio->bi_iter.bi_size) 1438 req->bio = bio->bi_next; 1439 1440 /* Completion has already been traced */ 1441 bio_clear_flag(bio, BIO_TRACE_COMPLETION); 1442 req_bio_endio(req, bio, bio_bytes, error); 1443 1444 total_bytes += bio_bytes; 1445 nr_bytes -= bio_bytes; 1446 1447 if (!nr_bytes) 1448 break; 1449 } 1450 1451 /* 1452 * completely done 1453 */ 1454 if (!req->bio) { 1455 /* 1456 * Reset counters so that the request stacking driver 1457 * can find how many bytes remain in the request 1458 * later. 1459 */ 1460 req->__data_len = 0; 1461 return false; 1462 } 1463 1464 req->__data_len -= total_bytes; 1465 1466 /* update sector only for requests with clear definition of sector */ 1467 if (!blk_rq_is_passthrough(req)) 1468 req->__sector += total_bytes >> 9; 1469 1470 /* mixed attributes always follow the first bio */ 1471 if (req->rq_flags & RQF_MIXED_MERGE) { 1472 req->cmd_flags &= ~REQ_FAILFAST_MASK; 1473 req->cmd_flags |= req->bio->bi_opf & REQ_FAILFAST_MASK; 1474 } 1475 1476 if (!(req->rq_flags & RQF_SPECIAL_PAYLOAD)) { 1477 /* 1478 * If total number of sectors is less than the first segment 1479 * size, something has gone terribly wrong. 1480 */ 1481 if (blk_rq_bytes(req) < blk_rq_cur_bytes(req)) { 1482 blk_dump_rq_flags(req, "request botched"); 1483 req->__data_len = blk_rq_cur_bytes(req); 1484 } 1485 1486 /* recalculate the number of segments */ 1487 req->nr_phys_segments = blk_recalc_rq_segments(req); 1488 } 1489 1490 return true; 1491 } 1492 EXPORT_SYMBOL_GPL(blk_update_request); 1493 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org