diff --git a/include/linux/icmpv6.h b/include/linux/icmpv6.h
index 03067443198a3baf0e5bef0c3ba0dfa05499fd1d..a93a8dd33118f5fe900e2e6a2e79672bdb1f1319 100644
--- a/include/linux/icmpv6.h
+++ b/include/linux/icmpv6.h
@@ -40,16 +40,18 @@ struct icmp6hdr {
                 struct icmpv6_nd_ra {
 			__u8		hop_limit;
 #if defined(__LITTLE_ENDIAN_BITFIELD)
-			__u8		reserved:4,
+			__u8		reserved:3,
 					router_pref:2,
+					home_agent:1,
 					other:1,
 					managed:1;
 
 #elif defined(__BIG_ENDIAN_BITFIELD)
 			__u8		managed:1,
 					other:1,
+					home_agent:1,
 					router_pref:2,
-					reserved:4;
+					reserved:3;
 #else
 #error	"Please fix <asm/byteorder.h>"
 #endif
diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c
index 840b15780a366a7d09e8df994eabc0ddb9752f13..aae7ddcc8a2ed8177cadc45817da2cb53199986b 100644
--- a/net/ipv6/ndisc.c
+++ b/net/ipv6/ndisc.c
@@ -1199,7 +1199,7 @@ static void ndisc_router_discovery(struct sk_buff *skb)
 		}
 		neigh->flags |= NTF_ROUTER;
 	} else if (rt) {
-		rt->rt6i_flags |= (rt->rt6i_flags & ~RTF_PREF_MASK) | RTF_PREF(pref);
+		rt->rt6i_flags = (rt->rt6i_flags & ~RTF_PREF_MASK) | RTF_PREF(pref);
 	}
 
 	if (rt)