[TCP]: Add tcp_for_write_queue_from_safe and use it in mtu_probe
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/tcp.h b/include/net/tcp.h
index cdd0050..6e392ba 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1229,6 +1229,11 @@
for (; (skb != (struct sk_buff *)&(sk)->sk_write_queue);\
skb = skb->next)
+#define tcp_for_write_queue_from_safe(skb, tmp, sk) \
+ for (tmp = skb->next; \
+ (skb != (struct sk_buff *)&(sk)->sk_write_queue); \
+ skb = tmp, tmp = skb->next)
+
static inline struct sk_buff *tcp_send_head(struct sock *sk)
{
return sk->sk_send_head;