WARNING: line length of 82 exceeds 80 columns
#30: FILE: drivers/net/virtio_net.c:3334:
+	err = virtqueue_resize(rq->vq, ring_num, virtnet_rq_unmap_free_buf, NULL);

WARNING: line length of 83 exceeds 80 columns
#39: FILE: drivers/net/virtio_net.c:3397:
+	err = virtqueue_resize(sq->vq, ring_num, virtnet_sq_free_unused_buf, NULL);

WARNING: line length of 81 exceeds 80 columns
#51: FILE: drivers/virtio/virtio_ring.c:2775:
+ * @recycle_done: callback to be invoked when recycle for all unused buffers done

WARNING: The commit message has 'stable@', perhaps it also needs a 'Fixes:' tag?

total: 0 errors, 4 warnings, 0 checks, 49 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 126223d27a6f ("virtio_ring: add a func argument 'recycle_done' to virtqueue_resize()") 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, 4 warnings, 0 checks, 49 lines checked