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[NET]: Move hardware header operations out of netdevice.

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Since hardware header operations are part of the protocol class
not the device instance, make them into a separate object and
save memory.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stephen Hemminger 2007-10-09 01:40:57 -07:00 • committed by David S. Miller
parent b95cce3576
commit 3b04ddde02
65 changed files with 479 additions and 473 deletions
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18
drivers/net/arcnet/arcnet.c
View file

@ -102,8 +102,8 @@ static int arcnet_close(struct net_device *dev);
static int arcnet_send_packet(struct sk_buff *skb, struct net_device *dev);
static void arcnet_timeout(struct net_device *dev);
static int arcnet_header(struct sk_buff *skb, struct net_device *dev,
unsigned short type, void *daddr, void *saddr,
unsigned len);
unsigned short type, const void *daddr,
const void *saddr, unsigned len);
static int arcnet_rebuild_header(struct sk_buff *skb);
static struct net_device_stats *arcnet_get_stats(struct net_device *dev);
static int go_tx(struct net_device *dev);
@ -317,11 +317,17 @@ static int choose_mtu(void)
return mtu == 65535 ? XMTU : mtu;
}
static const struct header_ops arcnet_header_ops = {
.create = arcnet_header,
.rebuild = arcnet_rebuild_header,
};
/* Setup a struct device for ARCnet. */
static void arcdev_setup(struct net_device *dev)
{
dev->type = ARPHRD_ARCNET;
dev->header_ops = &arcnet_header_ops;
dev->hard_header_len = sizeof(struct archdr);
dev->mtu = choose_mtu();
@ -342,8 +348,6 @@ static void arcdev_setup(struct net_device *dev)
dev->hard_start_xmit = arcnet_send_packet;
dev->tx_timeout = arcnet_timeout;
dev->get_stats = arcnet_get_stats;
dev->hard_header = arcnet_header;
dev->rebuild_header = arcnet_rebuild_header;
}
struct net_device *alloc_arcdev(char *name)
@ -488,10 +492,10 @@ static int arcnet_close(struct net_device *dev)
static int arcnet_header(struct sk_buff *skb, struct net_device *dev,
unsigned short type, void *daddr, void *saddr,
unsigned len)
unsigned short type, const void *daddr,
const void *saddr, unsigned len)
{
struct arcnet_local *lp = dev->priv;
const struct arcnet_local *lp = netdev_priv(dev);
uint8_t _daddr, proto_num;
struct ArcProto *proto;