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

Browse source 
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 <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Stephen Hemminger 2007-10-09 01:40:57 -07:00 • committed by David S. Miller
commit 3b04ddde02
65 changed files with 481 additions and 475 deletions
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13
net/rose/rose_dev.c
View file

@ -35,8 +35,9 @@
#include <net/ax25.h>
#include <net/rose.h>
static int rose_header(struct sk_buff *skb, struct net_device *dev, unsigned short type,
void *daddr, void *saddr, unsigned len)
static int rose_header(struct sk_buff *skb, struct net_device *dev,
unsigned short type,
const void *daddr, const void *saddr, unsigned len)
{
unsigned char *buff = skb_push(skb, ROSE_MIN_LEN + 2);
@ -148,6 +149,11 @@ static struct net_device_stats *rose_get_stats(struct net_device *dev)
return netdev_priv(dev);
}
static const struct header_ops rose_header_ops = {
.create = rose_header,
.rebuild= rose_rebuild_header,
};
void rose_setup(struct net_device *dev)
{
dev->mtu = ROSE_MAX_PACKET_SIZE - 2;
@ -155,11 +161,10 @@ void rose_setup(struct net_device *dev)
dev->open = rose_open;
dev->stop = rose_close;
dev->hard_header = rose_header;
dev->header_ops = &rose_header_ops;
dev->hard_header_len = AX25_BPQ_HEADER_LEN + AX25_MAX_HEADER_LEN + ROSE_MIN_LEN;
dev->addr_len = ROSE_ADDR_LEN;
dev->type = ARPHRD_ROSE;
dev->rebuild_header = rose_rebuild_header;
dev->set_mac_address = rose_set_mac_address;
/* New-style flags. */