[SK_BUFF]: Introduce skb_reset_transport_header(skb)
For the common, open coded 'skb->h.raw = skb->data' operation, so that we can later turn skb->h.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 cases: skb->h.raw = skb->data; skb->h.raw = {skb_push|[__]skb_pull}() The next ones 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
0660e03f6b
commit
badff6d01a
@@ -1120,7 +1120,8 @@ static int inet_gso_send_check(struct sk_buff *skb)
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if (unlikely(!pskb_may_pull(skb, ihl)))
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goto out;
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skb->h.raw = __skb_pull(skb, ihl);
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__skb_pull(skb, ihl);
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skb_reset_transport_header(skb);
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iph = ip_hdr(skb);
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proto = iph->protocol & (MAX_INET_PROTOS - 1);
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err = -EPROTONOSUPPORT;
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@@ -1163,7 +1164,8 @@ static struct sk_buff *inet_gso_segment(struct sk_buff *skb, int features)
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if (unlikely(!pskb_may_pull(skb, ihl)))
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goto out;
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skb->h.raw = __skb_pull(skb, ihl);
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__skb_pull(skb, ihl);
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skb_reset_transport_header(skb);
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iph = ip_hdr(skb);
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id = ntohs(iph->id);
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proto = iph->protocol & (MAX_INET_PROTOS - 1);
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