[SK_BUFF]: Introduce skb_reset_network_header(skb)
For the common, open coded 'skb->nh.raw = skb->data' operation, so that we can later turn skb->nh.raw into a offset, reducing the size of struct sk_buff in 64bit land while possibly keeping it as a pointer on 32bit. This one touches just the most simple case, next will handle the slightly more "complex" cases. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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committed by
David S. Miller

parent
57effc70a5
commit
c1d2bbe1cd
@@ -129,7 +129,7 @@ static int xfrm4_tunnel_input(struct xfrm_state *x, struct sk_buff *skb)
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old_mac = skb_mac_header(skb);
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skb_set_mac_header(skb, -skb->mac_len);
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memmove(skb_mac_header(skb), old_mac, skb->mac_len);
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skb->nh.raw = skb->data;
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skb_reset_network_header(skb);
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err = 0;
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out:
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