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authorEric Dumazet <edumazet@google.com>2013-01-07 09:28:21 +0000
committerDavid S. Miller <davem@davemloft.net>2013-01-08 17:51:54 -0800
commitfda55eca5a33f33ffcd4192c6b2d75179714a52c (patch)
tree54b8e755273ab37fa54cfdd0867b2e7631eb4b10 /include/linux/skbuff.h
parent0edb7ede7d524377afbaf48a35654baa52368f4b (diff)
downloadop-kernel-dev-fda55eca5a33f33ffcd4192c6b2d75179714a52c.zip
op-kernel-dev-fda55eca5a33f33ffcd4192c6b2d75179714a52c.tar.gz
net: introduce skb_transport_header_was_set()
We have skb_mac_header_was_set() helper to tell if mac_header was set on a skb. We would like the same for transport_header. __netif_receive_skb() doesn't reset the transport header if already set by GRO layer. Note that network stacks usually reset the transport header anyway, after pulling the network header, so this change only allows a followup patch to have more precise qdisc pkt_len computation for GSO packets at ingress side. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
-rw-r--r--include/linux/skbuff.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 320e976..8b2256e 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -1492,6 +1492,11 @@ static inline void skb_set_inner_network_header(struct sk_buff *skb,
skb->inner_network_header += offset;
}
+static inline bool skb_transport_header_was_set(const struct sk_buff *skb)
+{
+ return skb->transport_header != ~0U;
+}
+
static inline unsigned char *skb_transport_header(const struct sk_buff *skb)
{
return skb->head + skb->transport_header;
@@ -1580,6 +1585,11 @@ static inline void skb_set_inner_network_header(struct sk_buff *skb,
skb->inner_network_header = skb->data + offset;
}
+static inline bool skb_transport_header_was_set(const struct sk_buff *skb)
+{
+ return skb->transport_header != NULL;
+}
+
static inline unsigned char *skb_transport_header(const struct sk_buff *skb)
{
return skb->transport_header;
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