CHECK: Comparison to NULL could be written "!dp->bridge"
#43: FILE: drivers/net/dsa/b53/b53_common.c:779:
+	return dp->bridge == NULL;

total: 0 errors, 0 warnings, 1 checks, 223 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 17bec173a5c8 ("net: dsa: b53: fix toggling vlan_filtering") 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, 0 warnings, 1 checks, 223 lines checked