[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 <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c
index 0cdcf0d..57ec888 100644
--- a/net/mac80211/ieee80211.c
+++ b/net/mac80211/ieee80211.c
@@ -228,7 +228,6 @@
dev->open = ieee80211_mgmt_open;
dev->stop = ieee80211_mgmt_stop;
dev->type = ARPHRD_IEEE80211_PRISM;
- dev->hard_header_parse = header_parse_80211;
dev->uninit = ieee80211_if_reinit;
dev->destructor = ieee80211_if_free;
}
@@ -546,10 +545,19 @@
netif_tx_unlock(local->mdev);
}
+static const struct header_ops ieee80211_header_ops = {
+ .create = eth_header,
+ .parse = header_parse_80211,
+ .rebuild = eth_rebuild_header,
+ .cache = eth_header_cache,
+ .cache_update = eth_header_cache_update,
+};
+
/* Must not be called for mdev and apdev */
void ieee80211_if_setup(struct net_device *dev)
{
ether_setup(dev);
+ dev->header_ops = &ieee80211_header_ops;
dev->hard_start_xmit = ieee80211_subif_start_xmit;
dev->wireless_handlers = &ieee80211_iw_handler_def;
dev->set_multicast_list = ieee80211_set_multicast_list;
@@ -1197,7 +1205,7 @@
mdev->open = ieee80211_master_open;
mdev->stop = ieee80211_master_stop;
mdev->type = ARPHRD_IEEE80211;
- mdev->hard_header_parse = header_parse_80211;
+ mdev->header_ops = &ieee80211_header_ops;
sdata->type = IEEE80211_IF_TYPE_AP;
sdata->dev = mdev;