WARNING: line length of 81 exceeds 80 columns
#185: FILE: net/l2tp/l2tp_core.c:1253:
+static int l2tp_xmit_ipv4(struct sock *sk, struct sk_buff *skb, struct flowi *fl)

total: 0 errors, 1 warnings, 0 checks, 117 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 f35a025577ac ("l2tp: fix double dst_release() on sk_dst_cache race") 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, 1 warnings, 0 checks, 117 lines checked