WARNING: line length of 81 exceeds 80 columns
#41: FILE: include/linux/tcp.h:300:
+	u8	rcv_wnd_scaling_ratio; /* 0 if unknown, else tp->rcv_wnd basis */

WARNING: line length of 99 exceeds 80 columns
#123: FILE: net/ipv4/tcp.c:5278:
+	CACHELINE_ASSERT_GROUP_MEMBER(struct tcp_sock, tcp_sock_write_txrx, rcv_wnd_scaling_ratio);

total: 0 errors, 2 warnings, 0 checks, 85 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 737baa66ff20 ("tcp: snapshot advertise-time scaling for rcv_wnd") 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, 2 warnings, 0 checks, 85 lines checked