[TCP]: Remove TCPCB_URG & TCPCB_AT_TAIL as unnecessary

The snd_up check should be enough. I suspect this has been
there to provide a minor optimization in clean_rtx_queue which
used to have a small if (!->sacked) block which could skip
snd_up check among the other work.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 4 deletions

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 6a732d4919fe..48081ada92a7 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -578,10 +578,6 @@ struct tcp_skb_cb {
 #define TCPCB_EVER_RETRANS      0x80    /* Ever retransmitted frame     */
 #define TCPCB_RETRANS           (TCPCB_SACKED_RETRANS|TCPCB_EVER_RETRANS)
 
-#define TCPCB_URG               0x20    /* Urgent pointer advanced here */
-
-#define TCPCB_AT_TAIL           (TCPCB_URG)
-
         __u16           urg_ptr;        /* Valid w/URG flags is set.    */
         __u32           ack_seq;        /* Sequence number ACK'd        */
 };