WARNING: else is not generally useful after a break or return
#73: FILE: include/linux/igmp.h:129:
+		return code;
+	} else {

total: 0 errors, 1 warnings, 0 checks, 119 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 e1dbc62b0bf4 ("ipv4: igmp: get rid of IGMPV3_{QQIC,MRC} and simplify calculation") 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, 0 checks, 119 lines checked