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-rw-r--r--include/net/tcp.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h
index ac52633e7061..13bc83fab454 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -39,6 +39,7 @@
#include <net/tcp_states.h>
#include <net/inet_ecn.h>
#include <net/dst.h>
+#include <net/mptcp.h>
#include <linux/seq_file.h>
#include <linux/memcontrol.h>
@@ -978,6 +979,13 @@ static inline bool tcp_skb_can_collapse_to(const struct sk_buff *skb)
return likely(!TCP_SKB_CB(skb)->eor);
}
+static inline bool tcp_skb_can_collapse(const struct sk_buff *to,
+ const struct sk_buff *from)
+{
+ return likely(tcp_skb_can_collapse_to(to) &&
+ mptcp_skb_can_collapse(to, from));
+}
+
/* Events passed to congestion control interface */
enum tcp_ca_event {
CA_EVENT_TX_START, /* first transmit when no packets in flight */