WARNING: line length of 81 exceeds 80 columns #101: FILE: net/ipv4/route.c:2168: + if (ipv4_is_loopback(saddr) && !IN_DEV_NET_ROUTE_LOCALNET(in_dev, net)) { WARNING: From:/Signed-off-by: email address mismatch: 'From: Menglong Dong ' != 'Signed-off-by: Menglong Dong ' total: 0 errors, 2 warnings, 0 checks, 88 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 aac101492108 ("net: ip: make ip_route_use_hint() return drop reasons") 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, 2 warnings, 0 checks, 88 lines checked