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authorArnaldo Carvalho de Melo <acme@redhat.com>2007-03-19 15:30:44 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-25 22:24:32 -0700
commit459a98ed881802dee55897441bc7f77af614368e (patch)
treeb81f76632d8f2e21eb91ec3d885091a98398d93e /net/core
parent4c13eb6657fe9ef7b4dc8f1a405c902e9e5234e0 (diff)
downloadop-kernel-dev-459a98ed881802dee55897441bc7f77af614368e.zip
op-kernel-dev-459a98ed881802dee55897441bc7f77af614368e.tar.gz
[SK_BUFF]: Introduce skb_reset_mac_header(skb)
For the common, open coded 'skb->mac.raw = skb->data' operation, so that we can later turn skb->mac.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>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/dev.c4
-rw-r--r--net/core/netpoll.c2
-rw-r--r--net/core/skbuff.c2
3 files changed, 4 insertions, 4 deletions
diff --git a/net/core/dev.c b/net/core/dev.c
index 424d6d0..2fcaf5b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1066,7 +1066,7 @@ static void dev_queue_xmit_nit(struct sk_buff *skb, struct net_device *dev)
set by sender, so that the second statement is
just protection against buggy protocols.
*/
- skb2->mac.raw = skb2->data;
+ skb_reset_mac_header(skb2);
if (skb2->nh.raw < skb2->data ||
skb2->nh.raw > skb2->tail) {
@@ -1206,7 +1206,7 @@ struct sk_buff *skb_gso_segment(struct sk_buff *skb, int features)
BUG_ON(skb_shinfo(skb)->frag_list);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->mac_len = skb->nh.raw - skb->data;
__skb_pull(skb, skb->mac_len);
diff --git a/net/core/netpoll.c b/net/core/netpoll.c
index 32a9f80..0ad3896 100644
--- a/net/core/netpoll.c
+++ b/net/core/netpoll.c
@@ -324,7 +324,7 @@ void netpoll_send_udp(struct netpoll *np, const char *msg, int len)
iph->check = ip_fast_csum((unsigned char *)iph, iph->ihl);
eth = (struct ethhdr *) skb_push(skb, ETH_HLEN);
- skb->mac.raw = skb->data;
+ skb_reset_mac_header(skb);
skb->protocol = eth->h_proto = htons(ETH_P_IP);
memcpy(eth->h_source, np->local_mac, 6);
memcpy(eth->h_dest, np->remote_mac, 6);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 336958f..8f6ebd0 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1928,7 +1928,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, int features)
nskb->mac_len = skb->mac_len;
skb_reserve(nskb, headroom);
- nskb->mac.raw = nskb->data;
+ skb_reset_mac_header(nskb);
nskb->nh.raw = nskb->data + skb->mac_len;
nskb->h.raw = nskb->nh.raw + (skb->h.raw - skb->nh.raw);
memcpy(skb_put(nskb, doffset), skb->data, doffset);
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