WARNING: line length of 85 exceeds 80 columns
#63: FILE: net/ipv6/ip6_tunnel.c:630:
+		err = __ip_options_compile(dev_net(skb->dev), &parm.opt, skb2, NULL);

total: 0 errors, 1 warnings, 0 checks, 41 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 0213ee7ec6fc ("ip6_tunnel: validate ipv4 header in ip4ip6_err()") 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, 41 lines checked