From 66409b7c8bd0ebb075a6af8cbc7846fc0a95107d Mon Sep 17 00:00:00 2001
From: Dmitry Fleytman
Date: Wed, 1 Jun 2016 11:23:40 +0300
Subject: rtl8139: Move more TCP definitions to common header

Signed-off-by: Dmitry Fleytman <dmitry.fleytman@ravellosystems.com>
Signed-off-by: Leonid Bloch <leonid.bloch@ravellosystems.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
---
 include/net/eth.h | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'include')

diff --git a/include/net/eth.h b/include/net/eth.h
index 18d0be3b16..5a32259938 100644
--- a/include/net/eth.h
+++ b/include/net/eth.h
@@ -67,6 +67,14 @@ typedef struct tcp_header {
     uint16_t th_urp;            /* urgent pointer */
 } tcp_header;
 
+#define TCP_FLAGS_ONLY(flags) ((flags) & 0x3f)
+
+#define TCP_HEADER_FLAGS(tcp) \
+    TCP_FLAGS_ONLY(be16_to_cpu((tcp)->th_offset_flags))
+
+#define TCP_HEADER_DATA_OFFSET(tcp) \
+    (((be16_to_cpu((tcp)->th_offset_flags) >> 12) & 0xf) << 2)
+
 typedef struct udp_header {
     uint16_t uh_sport; /* source port */
     uint16_t uh_dport; /* destination port */
-- 
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