X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=net%2Fipv4%2Figmp.c;h=b3086cf2702759d1077cb6a014afbd130d8206db;hb=468ffd0d78bb9e7f7e91651021426012c3b2c240;hp=05e4cba14162f3583ec588657af7e8b68546b111;hpb=edb42dc7bc0da0125ceacab810a553ce1f0cac8d;p=firefly-linux-kernel-4.4.55.git

diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index 05e4cba14162..b3086cf27027 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -356,9 +356,8 @@ static struct sk_buff *igmpv3_newpack(struct net_device *dev, unsigned int mtu)
 	skb_dst_set(skb, &rt->dst);
 	skb->dev = dev;
 
-	skb->reserved_tailroom = skb_end_offset(skb) -
-				 min(mtu, skb_end_offset(skb));
 	skb_reserve(skb, hlen);
+	skb_tailroom_reserve(skb, mtu, tlen);
 
 	skb_reset_network_header(skb);
 	pip = ip_hdr(skb);