WARNING: else is not generally useful after a break or return
#77: FILE: include/linux/igmp.h:135:
+		return (unsigned long)code;
+	} else {

CHECK: spaces preferred around that '*' (ctx:VxV)
#133: FILE: net/ipv4/igmp.c:994:
+		max_delay = igmpv3_mrt(ih3)*(HZ/IGMP_TIMER_SCALE);
 		                           ^

CHECK: spaces preferred around that '/' (ctx:VxV)
#133: FILE: net/ipv4/igmp.c:994:
+		max_delay = igmpv3_mrt(ih3)*(HZ/IGMP_TIMER_SCALE);
 		                               ^

CHECK: spaces preferred around that '*' (ctx:VxV)
#142: FILE: net/ipv4/igmp.c:1009:
+		max_delay = igmpv3_mrt(ih3)*(HZ/IGMP_TIMER_SCALE);
 		                           ^

CHECK: spaces preferred around that '/' (ctx:VxV)
#142: FILE: net/ipv4/igmp.c:1009:
+		max_delay = igmpv3_mrt(ih3)*(HZ/IGMP_TIMER_SCALE);
 		                               ^

CHECK: spaces preferred around that '*' (ctx:VxV)
#151: FILE: net/ipv4/igmp.c:1019:
+		in_dev->mr_qi = igmpv3_qqi(ih3)*HZ ?: IGMP_QUERY_INTERVAL;
 		                               ^

total: 0 errors, 1 warnings, 5 checks, 117 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 c17d4f9bcae4 ("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, 5 checks, 117 lines checked