WARNING: line length of 83 exceeds 80 columns
#622: FILE: drivers/net/ethernet/mucse/rnpgbe/rnpgbe_lib.c:971:
+		dma = dma_map_single(tx_ring->dev, skb->data, size, DMA_TO_DEVICE);

total: 0 errors, 1 warnings, 0 checks, 896 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 f0a42712ee51 ("net: rnpgbe: Add basic TX packet transmission support") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE FILE_PATH_CHANGES 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, 896 lines checked