WARNING: line length of 87 exceeds 80 columns
#422: FILE: net/core/dev.c:11390:
+static int netdev_lock_cmp_fn(const struct lockdep_map *a, const struct lockdep_map *b)

WARNING: added, moved or deleted file(s), does MAINTAINERS need updating?
#549: 
new file mode 100644

WARNING: line length of 81 exceeds 80 columns
#832: FILE: net/core/rtnetlink.c:3038:
+		err = netif_change_net_namespace(dev, tgt_net, pat, new_ifindex);

total: 0 errors, 3 warnings, 0 checks, 827 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 5c3aac04cc28 ("net: hold netdev instance lock during rtnetlink operations") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE 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, 3 warnings, 0 checks, 827 lines checked