net: openvswitch: Use 'skb_push_rcsum()' instead of hand coding it

'skb_push()'/'skb_postpush_rcsum()' can be replaced by an equivalent
'skb_push_rcsum()' which is less verbose.

Signed-off-by: Christophe JAILLET <[e-mail]>
Signed-off-by: David S. Miller <[e-mail]>

net/openvswitch/conntrack.c

···
 
 	err = nf_nat_packet(ct, ctinfo, hooknum, skb);
 push:
-	skb_push(skb, nh_off);
-	skb_postpush_rcsum(skb, skb->data, nh_off);
+	skb_push_rcsum(skb, nh_off);
 
 	return err;
 }
···
 	else
 		err = ovs_ct_lookup(net, key, info, skb);
 
-	skb_push(skb, nh_ofs);
-	skb_postpush_rcsum(skb, skb->data, nh_ofs);
+	skb_push_rcsum(skb, nh_ofs);
 	if (err)
 		kfree_skb(skb);
 	return err;

net/openvswitch/vport-netdev.c

···
 	if (unlikely(!skb))
 		return;
 
-	if (skb->dev->type == ARPHRD_ETHER) {
-		skb_push(skb, ETH_HLEN);
-		skb_postpush_rcsum(skb, skb->data, ETH_HLEN);
-	}
+	if (skb->dev->type == ARPHRD_ETHER)
+		skb_push_rcsum(skb, ETH_HLEN);
+
 	ovs_vport_receive(vport, skb, skb_tunnel_info(skb));
 	return;
 error: