[IPV6]: Set noblock to 1 in NDISC sock_alloc_send_skb calls.

net/ipv6/ndisc.c

@@ -462,7 +462,7 @@ static void ndisc_send_na(struct net_device *dev, struct neighbour *neigh,
 	}
 
 	skb = sock_alloc_send_skb(sk, MAX_HEADER + len + dev->hard_header_len + 15,
-				  0, &err);
+				  1, &err);
 
 	if (skb == NULL) {
 		ND_PRINTK1("send_na: alloc skb failed\n");
@@ -546,7 +546,7 @@ void ndisc_send_ns(struct net_device *dev, struct neighbour *neigh,
 		len += NDISC_OPT_SPACE(dev->addr_len);
 
 	skb = sock_alloc_send_skb(sk, MAX_HEADER + len + dev->hard_header_len + 15,
-				  0, &err);
+				  1, &err);
 	if (skb == NULL) {
 		ND_PRINTK1("send_ns: alloc skb failed\n");
 		return;
@@ -616,7 +616,7 @@ void ndisc_send_rs(struct net_device *dev, struct in6_addr *saddr,
 		len += NDISC_OPT_SPACE(dev->addr_len);
 
         skb = sock_alloc_send_skb(sk, MAX_HEADER + len + dev->hard_header_len + 15,
-				  0, &err);
+				  1, &err);
 	if (skb == NULL) {
 		ND_PRINTK1("send_ns: alloc skb failed\n");
 		return;
@@ -1328,7 +1328,7 @@ void ndisc_send_redirect(struct sk_buff *skb, struct neighbour *neigh,
 	len += rd_len;
 
 	buff = sock_alloc_send_skb(sk, MAX_HEADER + len + dev->hard_header_len + 15,
-				   0, &err);
+				   1, &err);
 	if (buff == NULL) {
 		ND_PRINTK1("ndisc_send_redirect: alloc_skb failed\n");
 		return;