WARNING: line length of 82 exceeds 80 columns
#54: FILE: net/ethtool/netlink.c:22:
+char phy_interface_names[PHY_INTERFACE_MODE_MAX][ETH_GSTRING_LEN] __ro_after_init;

WARNING: line length of 84 exceeds 80 columns
#348: FILE: net/ethtool/port.c:191:
+	ret = ethnl_parse_header_dev_get(&req_info->base, tb[ETHTOOL_A_PORT_HEADER],

WARNING: line length of 81 exceeds 80 columns
#409: FILE: net/ethtool/port.c:252:
+	ret = port_fill_reply(skb, &ctx->req_info->base, &ctx->reply_data->base);

total: 0 errors, 3 warnings, 0 checks, 470 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 4f887f79cf84 ("net: ethtool: Introduce ethtool command to list ports") 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, 3 warnings, 0 checks, 470 lines checked