From 51793f54fd91ada610db6a9e78436075f2e33bdd Mon Sep 17 00:00:00 2001
From: Florin Coras <fcoras@cisco.com>
Date: Thu, 28 Mar 2019 08:39:01 -0700
Subject: tcp: remove unused buffer flags

Change-Id: I86e71f32dee3cc48f680e6432a96caef0a7f66a1
Signed-off-by: Florin Coras <fcoras@cisco.com>
---
 src/vnet/tcp/tcp.h        | 20 --------------------
 src/vnet/tcp/tcp_output.c |  3 ---
 2 files changed, 23 deletions(-)

diff --git a/src/vnet/tcp/tcp.h b/src/vnet/tcp/tcp.h
index d15a36dc774..d9f49df6d32 100644
--- a/src/vnet/tcp/tcp.h
+++ b/src/vnet/tcp/tcp.h
@@ -144,26 +144,6 @@ typedef enum _tcp_connection_flag
   TCP_CONN_N_FLAGS
 } tcp_connection_flags_e;
 
-/** TCP buffer flags */
-#define foreach_tcp_buf_flag                            \
-  _ (ACK)       /**< Sending ACK. */                    \
-  _ (DUPACK)    /**< Sending DUPACK. */                 \
-
-enum
-{
-#define _(f) TCP_BUF_BIT_##f,
-  foreach_tcp_buf_flag
-#undef _
-    TCP_N_BUF_BITS,
-};
-
-enum
-{
-#define _(f) TCP_BUF_FLAG_##f = 1 << TCP_BUF_BIT_##f,
-  foreach_tcp_buf_flag
-#undef _
-};
-
 #define TCP_SCOREBOARD_TRACE (0)
 #define TCP_MAX_SACK_BLOCKS 256	/**< Max number of SACK blocks stored */
 #define TCP_INVALID_SACK_HOLE_INDEX ((u32)~0)
diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c
index 2abc40a8cc7..30549c4e729 100644
--- a/src/vnet/tcp/tcp_output.c
+++ b/src/vnet/tcp/tcp_output.c
@@ -535,9 +535,6 @@ void
 tcp_make_fin (tcp_connection_t * tc, vlib_buffer_t * b)
 {
   tcp_make_ack_i (tc, b, TCP_STATE_ESTABLISHED, TCP_FLAG_FIN | TCP_FLAG_ACK);
-
-  /* Reset flags, make sure ack is sent */
-  vnet_buffer (b)->tcp.flags &= ~TCP_BUF_FLAG_DUPACK;
 }
 
 /**
-- 
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