From: Adit Ranadive <[EMAIL PROTECTED]>

commit ce5d0b47f13f83dfb9fbb8ac91adad7120747aaf in mainline

Subject: [48/50] [PATCH] [PKTGEN]: srcmac fix

Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
Signed-off-by: David S. Miller <[EMAIL PROTECTED]>

---
 net/core/pktgen.c |   10 ++++++++++
 1 file changed, 10 insertions(+)

--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -111,6 +111,9 @@
  *
  * 802.1Q/Q-in-Q support by Francesco Fondelli (FF) <[EMAIL PROTECTED]>
  *
+ * Fixed src_mac command to set source mac of packet to value specified in
+ * command by Adit Ranadive <[EMAIL PROTECTED]>
+ *
  */
 #include <linux/sys.h>
 #include <linux/types.h>
@@ -1415,8 +1418,11 @@ static ssize_t pktgen_if_write(struct fi
        }
        if (!strcmp(name, "src_mac")) {
                char *v = valstr;
+               unsigned char old_smac[ETH_ALEN];
                unsigned char *m = pkt_dev->src_mac;
 
+               memcpy(old_smac, pkt_dev->src_mac, ETH_ALEN);
+
                len = strn_len(&user_buffer[i], sizeof(valstr) - 1);
                if (len < 0) {
                        return len;
@@ -1445,6 +1451,10 @@ static ssize_t pktgen_if_write(struct fi
                        }
                }
 
+               /* Set up Src MAC */
+               if (compare_ether_addr(old_smac, pkt_dev->src_mac))
+                       memcpy(&(pkt_dev->hh[6]), pkt_dev->src_mac, ETH_ALEN);
+
                sprintf(pg_result, "OK: srcmac");
                return count;
        }

-- 
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