diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 4b264ed40a8c..71c3dacec1ed 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -2107,7 +2107,6 @@ static int ip6_mc_add_src(struct inet6_dev *idev, struct in6_addr *pmca,
 		for (j=0; j<i; j++)
 			(void) ip6_mc_del1_src(pmc, sfmode, &psfsrc[i]);
 	} else if (isexclude != (pmc->mca_sfcount[MCAST_EXCLUDE] != 0)) {
-		struct inet6_dev *idev = pmc->idev;
 		struct ip6_sf_list *psf;
 
 		/* filter mode change */