CC: [email protected] TO: Christoph Hellwig <[email protected]> tree: git://git.infradead.org/users/hch/block.git alloc_disk head: 60f08b2fdf176410f5dc53a88342cf5e38b61416 commit: 9e728f4a6f7d5579fafafd0f00de7f22e8936ab1 [28/41] blk-mq: improve the blk_mq_init_allocated_queue interface :::::: branch date: 4 hours ago :::::: commit date: 4 days ago config: x86_64-randconfig-m001-20210503 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> Reported-by: Dan Carpenter <[email protected]> smatch warnings: drivers/md/dm-rq.c:563 dm_mq_init_request_queue() error: uninitialized symbol 'q'. vim +/q +563 drivers/md/dm-rq.c 4cc96131afce3e Mike Snitzer 2016-05-12 530 e83068a5faafb8 Mike Snitzer 2016-05-24 531 int dm_mq_init_request_queue(struct mapped_device *md, struct dm_table *t) 4cc96131afce3e Mike Snitzer 2016-05-12 532 { 4cc96131afce3e Mike Snitzer 2016-05-12 533 struct request_queue *q; e83068a5faafb8 Mike Snitzer 2016-05-24 534 struct dm_target *immutable_tgt; 4cc96131afce3e Mike Snitzer 2016-05-12 535 int err; 4cc96131afce3e Mike Snitzer 2016-05-12 536 4cc96131afce3e Mike Snitzer 2016-05-12 537 md->tag_set = kzalloc_node(sizeof(struct blk_mq_tag_set), GFP_KERNEL, md->numa_node_id); 4cc96131afce3e Mike Snitzer 2016-05-12 538 if (!md->tag_set) 4cc96131afce3e Mike Snitzer 2016-05-12 539 return -ENOMEM; 4cc96131afce3e Mike Snitzer 2016-05-12 540 4cc96131afce3e Mike Snitzer 2016-05-12 541 md->tag_set->ops = &dm_mq_ops; 4cc96131afce3e Mike Snitzer 2016-05-12 542 md->tag_set->queue_depth = dm_get_blk_mq_queue_depth(); 4cc96131afce3e Mike Snitzer 2016-05-12 543 md->tag_set->numa_node = md->numa_node_id; bf0beec0607db3 Ming Lei 2020-05-29 544 md->tag_set->flags = BLK_MQ_F_SHOULD_MERGE | BLK_MQ_F_STACKING; 4cc96131afce3e Mike Snitzer 2016-05-12 545 md->tag_set->nr_hw_queues = dm_get_blk_mq_nr_hw_queues(); 4cc96131afce3e Mike Snitzer 2016-05-12 546 md->tag_set->driver_data = md; 4cc96131afce3e Mike Snitzer 2016-05-12 547 4cc96131afce3e Mike Snitzer 2016-05-12 548 md->tag_set->cmd_size = sizeof(struct dm_rq_target_io); e83068a5faafb8 Mike Snitzer 2016-05-24 549 immutable_tgt = dm_table_get_immutable_target(t); 4cc96131afce3e Mike Snitzer 2016-05-12 550 if (immutable_tgt && immutable_tgt->per_io_data_size) { 4cc96131afce3e Mike Snitzer 2016-05-12 551 /* any target-specific per-io data is immediately after the tio */ 4cc96131afce3e Mike Snitzer 2016-05-12 552 md->tag_set->cmd_size += immutable_tgt->per_io_data_size; 4cc96131afce3e Mike Snitzer 2016-05-12 553 md->init_tio_pdu = true; 4cc96131afce3e Mike Snitzer 2016-05-12 554 } 4cc96131afce3e Mike Snitzer 2016-05-12 555 4cc96131afce3e Mike Snitzer 2016-05-12 556 err = blk_mq_alloc_tag_set(md->tag_set); 4cc96131afce3e Mike Snitzer 2016-05-12 557 if (err) 4cc96131afce3e Mike Snitzer 2016-05-12 558 goto out_kfree_tag_set; 4cc96131afce3e Mike Snitzer 2016-05-12 559 9e728f4a6f7d55 Christoph Hellwig 2021-04-29 560 err = blk_mq_init_allocated_queue(md->tag_set, md->queue); 9e728f4a6f7d55 Christoph Hellwig 2021-04-29 561 if (err) 4cc96131afce3e Mike Snitzer 2016-05-12 562 goto out_tag_set; 9e728f4a6f7d55 Christoph Hellwig 2021-04-29 @563 elevator_init_mq(q); 4cc96131afce3e Mike Snitzer 2016-05-12 564 return 0; 4cc96131afce3e Mike Snitzer 2016-05-12 565 4cc96131afce3e Mike Snitzer 2016-05-12 566 out_tag_set: 4cc96131afce3e Mike Snitzer 2016-05-12 567 blk_mq_free_tag_set(md->tag_set); 4cc96131afce3e Mike Snitzer 2016-05-12 568 out_kfree_tag_set: 4cc96131afce3e Mike Snitzer 2016-05-12 569 kfree(md->tag_set); 4cc96131afce3e Mike Snitzer 2016-05-12 570 4cc96131afce3e Mike Snitzer 2016-05-12 571 return err; 4cc96131afce3e Mike Snitzer 2016-05-12 572 } 4cc96131afce3e Mike Snitzer 2016-05-12 573 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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