CHECK: extern prototypes should be avoided in .h files
#50: FILE: include/linux/rtnetlink.h:46:
+extern int rtnl_lock_interruptible(void);

WARNING: line length of 84 exceeds 80 columns
#70: FILE: net/core/net-sysfs.c:53:
+ *    device_del / kobject_put                      kernfs_get_active (kn->active++)

total: 0 errors, 1 warnings, 1 checks, 310 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 cae9b7cb0169 ("net-sysfs: remove rtnl_trylock from device attributes") 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, 1 warnings, 1 checks, 310 lines checked