WARNING: 'dependant' may be misspelled - perhaps 'dependent'?
#12: 
There are no RTNL dependant, but ip6_mroute_setsockopt() reuses
                  ^^^^^^^^^

CHECK: struct mutex definition without comment
#32: FILE: include/net/netns/ipv6.h:117:
+	struct mutex		mfc_mutex;

total: 0 errors, 1 warnings, 1 checks, 80 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 ea3139db56b4 ("ip6mr: Replace RTNL with a dedicated mutex for MFC.") 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, 1 checks, 80 lines checked