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path: root/drivers/net/sky2.c
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Diffstat (limited to 'drivers/net/sky2.c')
-rw-r--r--drivers/net/sky2.c17
1 files changed, 11 insertions, 6 deletions
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index fe60f0462c9..eafb6327d68 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -1280,12 +1280,17 @@ static int sky2_xmit_frame(struct sk_buff *skb, struct net_device *dev)
if (skb->nh.iph->protocol == IPPROTO_UDP)
ctrl |= UDPTCP;
- le = get_tx_le(sky2);
- le->tx.csum.start = cpu_to_le16(hdr);
- le->tx.csum.offset = cpu_to_le16(offset);
- le->length = 0; /* initial checksum value */
- le->ctrl = 1; /* one packet */
- le->opcode = OP_TCPLISW | HW_OWNER;
+ if (hdr != sky2->tx_csum_start || offset != sky2->tx_csum_offset) {
+ sky2->tx_csum_start = hdr;
+ sky2->tx_csum_offset = offset;
+
+ le = get_tx_le(sky2);
+ le->tx.csum.start = cpu_to_le16(hdr);
+ le->tx.csum.offset = cpu_to_le16(offset);
+ le->length = 0; /* initial checksum value */
+ le->ctrl = 1; /* one packet */
+ le->opcode = OP_TCPLISW | HW_OWNER;
+ }
}
le = get_tx_le(sky2);