WARNING: line length of 83 exceeds 80 columns
#42: FILE: include/net/mptcp.h:313:
+static inline void mptcp_active_detect_blackhole(struct sock *sk, bool expired) { }

WARNING: line length of 84 exceeds 80 columns
#116: FILE: net/mptcp/mib.h:13:
+	MPTCP_MIB_MPCAPABLEACTIVEDROP,	/* Client-side fallback due to a MPC drop */

total: 0 errors, 2 warnings, 0 checks, 69 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 c37205877d58 ("mptcp: fallback to TCP after SYN+MPC drops") 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, 69 lines checked