WARNING: line length of 82 exceeds 80 columns
#76: FILE: drivers/virtio/virtio_ring.c:515:
+						    bool indirect, bool premapped)

WARNING: line length of 84 exceeds 80 columns
#94: FILE: drivers/virtio/virtio_ring.c:616:
+						     indirect, sg_is_premapped(sg));

WARNING: line length of 84 exceeds 80 columns
#103: FILE: drivers/virtio/virtio_ring.c:634:
+						     indirect, sg_is_premapped(sg));

WARNING: line length of 95 exceeds 80 columns
#166: FILE: drivers/virtio/virtio_ring.c:1309:
+				extra[i].addr = sg_is_premapped(sg) ? DMA_MAPPING_ERROR : addr;

WARNING: line length of 88 exceeds 80 columns
#197: FILE: drivers/virtio/virtio_ring.c:1469:
+				vq->packed.desc_extra[curr].addr = sg_is_premapped(sg) ?

WARNING: line length of 84 exceeds 80 columns
#211: FILE: drivers/virtio/virtio_ring.c:1623:
+			for (i = 0; i < len / sizeof(struct vring_packed_desc); i++)

total: 0 errors, 6 warnings, 0 checks, 210 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 385da6047267 ("virtio_ring: perform premapped operations based on per-buffer") 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, 6 warnings, 0 checks, 210 lines checked