aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/pcmcia
diff options
context:
space:
mode:
authorArnaldo Carvalho de Melo <acme@redhat.com>2007-04-19 23:29:13 -0400
committerDavid S. Miller <davem@sunset.davemloft.net>2007-04-26 01:26:28 -0400
commit27a884dc3cb63b93c2b3b643f5b31eed5f8a4d26 (patch)
tree5a267e40f9b94014be38dad5de0a52b6628834e0 /drivers/net/pcmcia
parentbe8bd86321fa7f06359d866ef61fb4d2f3e9dce9 (diff)
[SK_BUFF]: Convert skb->tail to sk_buff_data_t
So that it is also an offset from skb->head, reduces its size from 8 to 4 bytes on 64bit architectures, allowing us to combine the 4 bytes hole left by the layer headers conversion, reducing struct sk_buff size to 256 bytes, i.e. 4 64byte cachelines, and since the sk_buff slab cache is SLAB_HWCACHE_ALIGN... :-) Many calculations that previously required that skb->{transport,network, mac}_header be first converted to a pointer now can be done directly, being meaningful as offsets or pointers. Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/pcmcia')
-rw-r--r--drivers/net/pcmcia/nmclan_cs.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/net/pcmcia/nmclan_cs.c b/drivers/net/pcmcia/nmclan_cs.c
index ec0af65cd5d7..73da611fd536 100644
--- a/drivers/net/pcmcia/nmclan_cs.c
+++ b/drivers/net/pcmcia/nmclan_cs.c
@@ -1185,7 +1185,7 @@ static int mace_rx(struct net_device *dev, unsigned char RxCnt)
1185 skb_reserve(skb, 2); 1185 skb_reserve(skb, 2);
1186 insw(ioaddr + AM2150_RCV, skb_put(skb, pkt_len), pkt_len>>1); 1186 insw(ioaddr + AM2150_RCV, skb_put(skb, pkt_len), pkt_len>>1);
1187 if (pkt_len & 1) 1187 if (pkt_len & 1)
1188 *(skb->tail-1) = inb(ioaddr + AM2150_RCV); 1188 *(skb_tail_pointer(skb) - 1) = inb(ioaddr + AM2150_RCV);
1189 skb->protocol = eth_type_trans(skb, dev); 1189 skb->protocol = eth_type_trans(skb, dev);
1190 1190
1191 netif_rx(skb); /* Send the packet to the upper (protocol) layers. */ 1191 netif_rx(skb); /* Send the packet to the upper (protocol) layers. */