WARNING: 'lenth' may be misspelled - perhaps 'length'?
#9: 
Also, add a counter for the error case of first packet with lenth == 0.
                                                            ^^^^^

WARNING: line length of 83 exceeds 80 columns
#92: FILE: drivers/net/ethernet/microsoft/mana/mana_ethtool.c:173:
+			ethtool_sprintf(&data, "rx_%d_coalesced_cqe_%d", i, j + 2);

total: 0 errors, 2 warnings, 0 checks, 133 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 a1cf97210731 ("net: mana: Add ethtool counters for RX CQEs in coalesced type") 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, 2 warnings, 0 checks, 133 lines checked