[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/drivers/net/wireless/hostap/hostap.h b/drivers/net/wireless/hostap/hostap.h
index ef37a75..951df83 100644
--- a/drivers/net/wireless/hostap/hostap.h
+++ b/drivers/net/wireless/hostap/hostap.h
@@ -30,8 +30,7 @@
const struct hfa384x_rx_frame *rx);
void hostap_dump_tx_header(const char *name,
const struct hfa384x_tx_frame *tx);
-int hostap_80211_header_parse(struct sk_buff *skb, unsigned char *haddr);
-int hostap_80211_prism_header_parse(struct sk_buff *skb, unsigned char *haddr);
+extern const struct header_ops hostap_80211_ops;
int hostap_80211_get_hdrlen(u16 fc);
struct net_device_stats *hostap_get_stats(struct net_device *dev);
void hostap_setup_dev(struct net_device *dev, local_info_t *local,
diff --git a/drivers/net/wireless/hostap/hostap_hw.c b/drivers/net/wireless/hostap/hostap_hw.c
index 7fa7ab0a..b20bb013 100644
--- a/drivers/net/wireless/hostap/hostap_hw.c
+++ b/drivers/net/wireless/hostap/hostap_hw.c
@@ -3258,11 +3258,10 @@
INIT_LIST_HEAD(&local->bss_list);
hostap_setup_dev(dev, local, 1);
- local->saved_eth_header_parse = dev->hard_header_parse;
dev->hard_start_xmit = hostap_master_start_xmit;
dev->type = ARPHRD_IEEE80211;
- dev->hard_header_parse = hostap_80211_header_parse;
+ dev->header_ops = &hostap_80211_ops;
rtnl_lock();
ret = dev_alloc_name(dev, "wifi%d");
diff --git a/drivers/net/wireless/hostap/hostap_ioctl.c b/drivers/net/wireless/hostap/hostap_ioctl.c
index 7036ecf..40f516d 100644
--- a/drivers/net/wireless/hostap/hostap_ioctl.c
+++ b/drivers/net/wireless/hostap/hostap_ioctl.c
@@ -897,11 +897,8 @@
if (local->monitor_type == PRISM2_MONITOR_PRISM ||
local->monitor_type == PRISM2_MONITOR_CAPHDR) {
dev->type = ARPHRD_IEEE80211_PRISM;
- dev->hard_header_parse =
- hostap_80211_prism_header_parse;
} else {
dev->type = ARPHRD_IEEE80211;
- dev->hard_header_parse = hostap_80211_header_parse;
}
}
@@ -1141,7 +1138,7 @@
printk(KERN_DEBUG "%s: Disabling monitor mode\n", dev->name);
dev->type = ARPHRD_ETHER;
- dev->hard_header_parse = local->saved_eth_header_parse;
+
if (local->func->cmd(dev, HFA384X_CMDCODE_TEST |
(HFA384X_TEST_STOP << 8),
0, NULL, NULL))
diff --git a/drivers/net/wireless/hostap/hostap_main.c b/drivers/net/wireless/hostap/hostap_main.c
index 4cb09d8..b75cf92 100644
--- a/drivers/net/wireless/hostap/hostap_main.c
+++ b/drivers/net/wireless/hostap/hostap_main.c
@@ -594,24 +594,27 @@
}
-int hostap_80211_header_parse(struct sk_buff *skb, unsigned char *haddr)
+int hostap_80211_header_parse(const struct sk_buff *skb, unsigned char *haddr)
{
- memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
- return ETH_ALEN;
-}
+ struct hostap_interface *iface = netdev_priv(skb->dev);
+ local_info_t *local = iface->local;
+ if (local->monitor_type == PRISM2_MONITOR_PRISM ||
+ local->monitor_type == PRISM2_MONITOR_CAPHDR) {
+ const unsigned char *mac = skb_mac_header(skb);
-int hostap_80211_prism_header_parse(struct sk_buff *skb, unsigned char *haddr)
-{
- const unsigned char *mac = skb_mac_header(skb);
+ if (*(u32 *)mac == LWNG_CAP_DID_BASE) {
+ memcpy(haddr,
+ mac + sizeof(struct linux_wlan_ng_prism_hdr) + 10,
+ ETH_ALEN); /* addr2 */
+ } else { /* (*(u32 *)mac == htonl(LWNG_CAPHDR_VERSION)) */
+ memcpy(haddr,
+ mac + sizeof(struct linux_wlan_ng_cap_hdr) + 10,
+ ETH_ALEN); /* addr2 */
+ }
+ } else
+ memcpy(haddr, skb_mac_header(skb) + 10, ETH_ALEN); /* addr2 */
- if (*(u32 *)mac == LWNG_CAP_DID_BASE) {
- memcpy(haddr, mac + sizeof(struct linux_wlan_ng_prism_hdr) + 10,
- ETH_ALEN); /* addr2 */
- } else { /* (*(u32 *)mac == htonl(LWNG_CAPHDR_VERSION)) */
- memcpy(haddr, mac + sizeof(struct linux_wlan_ng_cap_hdr) + 10,
- ETH_ALEN); /* addr2 */
- }
return ETH_ALEN;
}
@@ -843,6 +846,15 @@
local->func->schedule_reset(local);
}
+const struct header_ops hostap_80211_ops = {
+ .create = eth_header,
+ .rebuild = eth_rebuild_header,
+ .cache = eth_header_cache,
+ .cache_update = eth_header_cache_update,
+
+ .parse = hostap_80211_header_parse,
+};
+EXPORT_SYMBOL(hostap_80211_ops);
void hostap_setup_dev(struct net_device *dev, local_info_t *local,
int main_dev)
@@ -883,7 +895,6 @@
netif_stop_queue(dev);
}
-
static int hostap_enable_hostapd(local_info_t *local, int rtnl_locked)
{
struct net_device *dev = local->dev;
@@ -901,7 +912,7 @@
local->apdev->hard_start_xmit = hostap_mgmt_start_xmit;
local->apdev->type = ARPHRD_IEEE80211;
- local->apdev->hard_header_parse = hostap_80211_header_parse;
+ local->apdev->header_ops = &hostap_80211_ops;
return 0;
}
diff --git a/drivers/net/wireless/hostap/hostap_wlan.h b/drivers/net/wireless/hostap/hostap_wlan.h
index a42325c1..c27b2c1 100644
--- a/drivers/net/wireless/hostap/hostap_wlan.h
+++ b/drivers/net/wireless/hostap/hostap_wlan.h
@@ -736,8 +736,6 @@
PRISM2_MONITOR_80211 = 0, PRISM2_MONITOR_PRISM = 1,
PRISM2_MONITOR_CAPHDR = 2
} monitor_type;
- int (*saved_eth_header_parse)(struct sk_buff *skb,
- unsigned char *haddr);
int monitor_allow_fcserr;
int hostapd; /* whether user space daemon, hostapd, is used for AP