From 3b04ddde02cf1b6f14f2697da5c20eca5715017f Mon Sep 17 00:00:00 2001 From: Stephen Hemminger Date: Tue, 9 Oct 2007 01:40:57 -0700 Subject: [NET]: Move hardware header operations out of netdevice. 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 Signed-off-by: David S. Miller --- drivers/ieee1394/eth1394.c | 40 +++++++++++++++++++++++----------------- 1 file changed, 23 insertions(+), 17 deletions(-) (limited to 'drivers/ieee1394') diff --git a/drivers/ieee1394/eth1394.c b/drivers/ieee1394/eth1394.c index b31f90082e359f..dc9dce22f6a8e2 100644 --- a/drivers/ieee1394/eth1394.c +++ b/drivers/ieee1394/eth1394.c @@ -159,15 +159,16 @@ MODULE_PARM_DESC(max_partial_datagrams, static int ether1394_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 ether1394_rebuild_header(struct sk_buff *skb); static int ether1394_header_parse(const struct sk_buff *skb, unsigned char *haddr); -static int ether1394_header_cache(struct neighbour *neigh, struct hh_cache *hh); +static int ether1394_header_cache(const struct neighbour *neigh, + struct hh_cache *hh); static void ether1394_header_cache_update(struct hh_cache *hh, - struct net_device *dev, - unsigned char *haddr); + const struct net_device *dev, + const unsigned char *haddr); static int ether1394_tx(struct sk_buff *skb, struct net_device *dev); static void ether1394_iso(struct hpsb_iso *iso); @@ -507,6 +508,14 @@ static void ether1394_reset_priv(struct net_device *dev, int set_mtu) spin_unlock_irqrestore(&priv->lock, flags); } +static const struct header_ops ether1394_header_ops = { + .create = ether1394_header, + .rebuild = ether1394_rebuild_header, + .cache = ether1394_header_cache, + .cache_update = ether1394_header_cache_update, + .parse = ether1394_header_parse, +}; + static void ether1394_init_dev(struct net_device *dev) { dev->open = ether1394_open; @@ -516,11 +525,7 @@ static void ether1394_init_dev(struct net_device *dev) dev->tx_timeout = ether1394_tx_timeout; dev->change_mtu = ether1394_change_mtu; - dev->hard_header = ether1394_header; - dev->rebuild_header = ether1394_rebuild_header; - dev->hard_header_cache = ether1394_header_cache; - dev->header_cache_update= ether1394_header_cache_update; - dev->hard_header_parse = ether1394_header_parse; + dev->header_ops = ðer1394_header_ops; SET_ETHTOOL_OPS(dev, ðtool_ops); @@ -711,8 +716,8 @@ static void ether1394_host_reset(struct hpsb_host *host) * saddr=NULL means use device source address * daddr=NULL means leave destination address (eg unresolved arp). */ static int ether1394_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 eth1394hdr *eth = (struct eth1394hdr *)skb_push(skb, ETH1394_HLEN); @@ -759,7 +764,8 @@ static int ether1394_header_parse(const struct sk_buff *skb, return ETH1394_ALEN; } -static int ether1394_header_cache(struct neighbour *neigh, struct hh_cache *hh) +static int ether1394_header_cache(const struct neighbour *neigh, + struct hh_cache *hh) { unsigned short type = hh->hh_type; struct net_device *dev = neigh->dev; @@ -778,8 +784,8 @@ static int ether1394_header_cache(struct neighbour *neigh, struct hh_cache *hh) /* Called by Address Resolution module to notify changes in address. */ static void ether1394_header_cache_update(struct hh_cache *hh, - struct net_device *dev, - unsigned char * haddr) + const struct net_device *dev, + const unsigned char * haddr) { memcpy((u8 *)hh->hh_data + 16 - ETH1394_HLEN, haddr, dev->addr_len); } @@ -899,8 +905,8 @@ static u16 ether1394_parse_encap(struct sk_buff *skb, struct net_device *dev, } /* Now add the ethernet header. */ - if (dev->hard_header(skb, dev, ntohs(ether_type), &dest_hw, NULL, - skb->len) >= 0) + if (dev_hard_header(skb, dev, ntohs(ether_type), &dest_hw, NULL, + skb->len) >= 0) ret = ether1394_type_trans(skb, dev); return ret; -- cgit 1.2.3-korg