WARNING: line length of 81 exceeds 80 columns
#28: FILE: net/mptcp/pm.c:17:
+/* if sk is ipv4 or ipv6_only allows only same-family local and remote addresses,

WARNING: line length of 83 exceeds 80 columns
#38: FILE: net/mptcp/pm.c:27:
+	bool loc_is_v4 = loc->family == AF_INET || ipv6_addr_v4mapped(&loc->addr6);

WARNING: line length of 83 exceeds 80 columns
#39: FILE: net/mptcp/pm.c:28:
+	bool rem_is_v4 = rem->family == AF_INET || ipv6_addr_v4mapped(&rem->addr6);

total: 0 errors, 3 warnings, 0 checks, 72 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 1e0e67f46449 ("mptcp: pm: move generic helper at the top") 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, 3 warnings, 0 checks, 72 lines checked