==========
checkpatch - FAILED

WARNING: Missing commit description - Add an appropriate one

WARNING: line length of 92 exceeds 80 columns
#21: FILE: net/ipv4/ipmr_base.c:284:
+	* Helper function that checks if *dev is part of the OIL (Outgoing Interfaces List).

WARNING: Block comments should align the * on each line
#21: FILE: net/ipv4/ipmr_base.c:284:
+	/**
+	* Helper function that checks if *dev is part of the OIL (Outgoing Interfaces List).

ERROR: trailing whitespace
#39: FILE: net/ipv4/ipmr_base.c:302:
+^I$

WARNING: Missing a blank line after declarations
#41: FILE: net/ipv4/ipmr_base.c:304:
+	int minvif = c->mfc_un.res.minvif, maxvif = c->mfc_un.res.maxvif;
+	if (minvif < 0 || maxvif > 32)

ERROR: trailing whitespace
#54: FILE: net/ipv4/ipmr_base.c:334:
+^I$

ERROR: trailing whitespace
#65: FILE: net/ipv4/ipmr_base.c:352:
+^I$

total: 3 errors, 4 warnings, 0 checks, 50 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.

NOTE: Whitespace errors detected.
      You may wish to use scripts/cleanpatch or scripts/cleanfile

Commit ac930ff56c20 ("net: ipmr: Fix out-of-bounds access in mr_mfc_uses_dev()") 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.