WARNING: line length of 81 exceeds 80 columns
#118: FILE: include/net/tcp_ecn.h:471:
+static inline void tcp_ecn_rcv_synack(struct sock *sk, const struct sk_buff *skb,

WARNING: line length of 84 exceeds 80 columns
#130: FILE: include/net/tcp_ecn.h:513:
+			u8 saw_opt = tcp_accecn_option_init(skb, tp->rx_opt.accecn);

WARNING: line length of 92 exceeds 80 columns
#198: FILE: net/ipv4/tcp_input.c:6142:
+				u8 saw_opt = tcp_accecn_option_init(skb, tp->rx_opt.accecn);

WARNING: line length of 85 exceeds 80 columns
#298: FILE: net/ipv4/tcp_output.c:1164:
+		if (ecn_opt && tp->saw_accecn_opt && !tcp_accecn_opt_fail_send(tp) &&

total: 0 errors, 4 warnings, 0 checks, 228 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 7bfcb2b419c2 ("tcp: accecn: AccECN option failure handling") 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, 4 warnings, 0 checks, 228 lines checked