WARNING: line length of 83 exceeds 80 columns
#119: FILE: drivers/net/virtio_net.c:554:
+		p = llist_entry(llist_next(&p->node), struct virtnet_sq_dma, node);

WARNING: line length of 91 exceeds 80 columns
#142: FILE: drivers/net/virtio_net.c:577:
+static struct virtnet_sq_dma *virtnet_sq_map_sg(struct send_queue *sq, int num, void *data)

WARNING: line length of 81 exceeds 80 columns
#238: FILE: drivers/net/virtio_net.c:670:
+	sq->dmainfo.p = kvcalloc(num, sizeof(struct virtnet_sq_dma), GFP_KERNEL);

WARNING: line length of 89 exceeds 80 columns
#266: FILE: drivers/net/virtio_net.c:698:
+static __maybe_unused int virtnet_sq_set_premapped(struct send_queue *sq, bool premapped)

WARNING: Do not crash the kernel unless it is absolutely unavoidable--use WARN_ON_ONCE() plus recovery code (if feasible) instead of BUG() or variants
#279: FILE: drivers/net/virtio_net.c:711:
+	BUG_ON(virtqueue_set_dma_premapped(sq->vq, premapped));

total: 0 errors, 5 warnings, 0 checks, 293 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit 46de7c002221 ("virtio_net: sq support premapped mode") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 5 warnings, 0 checks, 293 lines checked