WARNING: line length of 83 exceeds 80 columns
#46: FILE: net/xfrm/xfrm_user.c:38:
+static struct sock *xfrm_net_nlsk(const struct net *net, const struct sk_buff *skb)

WARNING: line length of 95 exceeds 80 columns
#81: FILE: net/xfrm/xfrm_user.c:1819:
+		err = nlmsg_unicast(xfrm_net_nlsk(net, skb), resp_skb, NETLINK_CB(skb).portid);

WARNING: line length of 87 exceeds 80 columns
#90: FILE: net/xfrm/xfrm_user.c:1909:
+	err = nlmsg_unicast(xfrm_net_nlsk(net, skb), resp_skb, NETLINK_CB(skb).portid);

WARNING: line length of 84 exceeds 80 columns
#117: FILE: net/xfrm/xfrm_user.c:2793:
+	err = nlmsg_unicast(xfrm_net_nlsk(net, skb), r_skb, NETLINK_CB(skb).portid);

total: 0 errors, 4 warnings, 0 checks, 87 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 9881bd6f51e5 ("xfrm: avoid RCU warnings around the per-netns netlink socket") 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, 4 warnings, 0 checks, 87 lines checked