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 #30: FILE: drivers/net/virtio_net.c:941: + BUG_ON(virtqueue_set_dma_premapped(vi->rq[i].vq, true)); total: 0 errors, 1 warnings, 0 checks, 42 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 ff9db9a1bd1e ("virtio_ring: virtqueue_set_dma_premapped() support to disable") 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, 1 warnings, 0 checks, 42 lines checked