pasemi_mac: Fix RX checksum flags

RX side flag to use is CHECKSUM_UNNECESSARY, not CHECKSUM_COMPLETE.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/pasemi_mac.c b/drivers/net/pasemi_mac.c
index dc710a0..0bfdd79 100644
--- a/drivers/net/pasemi_mac.c
+++ b/drivers/net/pasemi_mac.c
@@ -524,7 +524,7 @@
 		skb_put(skb, len);
 
 		if (likely((macrx & XCT_MACRX_HTY_M) == XCT_MACRX_HTY_IPV4_OK)) {
-			skb->ip_summed = CHECKSUM_COMPLETE;
+			skb->ip_summed = CHECKSUM_UNNECESSARY;
 			skb->csum = (macrx & XCT_MACRX_CSUM_M) >>
 					   XCT_MACRX_CSUM_S;
 		} else