From 2c406b8fc8fc09853e74924d7067712d7a75108f Mon Sep 17 00:00:00 2001
From: Benjamin Poirier <benjamin.poirier@gmail.com>
Date: Tue, 22 Mar 2011 19:11:21 -0400
Subject: [PATCH] rtl8139: cleanup FCS calculation

clean out ifdef's around ethernet checksum calculation

Signed-off-by: Benjamin Poirier <benjamin.poirier@gmail.com>
Acked-by: Igor V. Kovalenko <igor.v.kovalenko@gmail.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Michael S. Tsirkin <mst@redhat.com>
Cc: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
---
 hw/rtl8139.c | 20 +++-----------------
 1 file changed, 3 insertions(+), 17 deletions(-)

diff --git a/hw/rtl8139.c b/hw/rtl8139.c
index 0ba51fc11a..d843aa0273 100644
--- a/hw/rtl8139.c
+++ b/hw/rtl8139.c
@@ -47,6 +47,9 @@
  *                                  Darwin)
  */
 
+/* For crc32 */
+#include <zlib.h>
+
 #include "hw.h"
 #include "pci.h"
 #include "qemu-timer.h"
@@ -62,14 +65,6 @@
 /* debug RTL8139 card C+ mode only */
 //#define DEBUG_RTL8139CP 1
 
-/* Calculate CRCs properly on Rx packets */
-#define RTL8139_CALCULATE_RXCRC 1
-
-#if defined(RTL8139_CALCULATE_RXCRC)
-/* For crc32 */
-#include <zlib.h>
-#endif
-
 #define SET_MASKED(input, mask, curr) \
     ( ( (input) & ~(mask) ) | ( (curr) & (mask) ) )
 
@@ -1030,11 +1025,7 @@ static ssize_t rtl8139_do_receive(VLANClientState *nc, const uint8_t *buf, size_
         }
 
         /* write checksum */
-#if defined (RTL8139_CALCULATE_RXCRC)
         val = cpu_to_le32(crc32(0, buf, size));
-#else
-        val = 0;
-#endif
         cpu_physical_memory_write( rx_addr+size, (uint8_t *)&val, 4);
 
 /* first segment of received packet flag */
@@ -1136,12 +1127,7 @@ static ssize_t rtl8139_do_receive(VLANClientState *nc, const uint8_t *buf, size_
         rtl8139_write_buffer(s, buf, size);
 
         /* write checksum */
-#if defined (RTL8139_CALCULATE_RXCRC)
         val = cpu_to_le32(crc32(0, buf, size));
-#else
-        val = 0;
-#endif
-
         rtl8139_write_buffer(s, (uint8_t *)&val, 4);
 
         /* correct buffer write pointer */