mac80211: dont use interface indices in drivers
This patch gets rid of the if_id stuff where possible in favour of
a new per-virtual-interface structure "struct ieee80211_vif". This
structure is located at the end of the per-interface structure and
contains a variable length driver-use data area.
This has two advantages:
* removes the need to look up interfaces by if_id, this is better
for working with network namespaces and performance
* allows drivers to store and retrieve per-interface data without
having to allocate own lists/hash tables
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/b43legacy/b43legacy.h b/drivers/net/wireless/b43legacy/b43legacy.h
index e4de437..8352a4e 100644
--- a/drivers/net/wireless/b43legacy/b43legacy.h
+++ b/drivers/net/wireless/b43legacy/b43legacy.h
@@ -577,10 +577,7 @@
* at a time. General information about this interface follows.
*/
- /* Opaque ID of the operating interface from the ieee80211
- * subsystem. Do not modify.
- */
- int if_id;
+ struct ieee80211_vif *vif;
/* MAC address (can be NULL). */
u8 mac_addr[ETH_ALEN];
/* Current BSSID (can be NULL). */
diff --git a/drivers/net/wireless/b43legacy/main.c b/drivers/net/wireless/b43legacy/main.c
index 575fd9a..2d5735d 100644
--- a/drivers/net/wireless/b43legacy/main.c
+++ b/drivers/net/wireless/b43legacy/main.c
@@ -976,7 +976,7 @@
plcp.data = 0;
b43legacy_generate_plcp_hdr(&plcp, size + FCS_LEN, rate);
dur = ieee80211_generic_frame_duration(dev->wl->hw,
- dev->wl->if_id,
+ dev->wl->vif,
size,
B43legacy_RATE_TO_100KBPS(rate));
/* Write PLCP in two parts and timing for packet transfer */
@@ -1042,7 +1042,7 @@
hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_PROBE_RESP);
dur = ieee80211_generic_frame_duration(dev->wl->hw,
- dev->wl->if_id,
+ dev->wl->vif,
*dest_size,
B43legacy_RATE_TO_100KBPS(rate));
hdr->duration_id = dur;
@@ -2647,7 +2647,7 @@
}
static int b43legacy_op_config_interface(struct ieee80211_hw *hw,
- int if_id,
+ struct ieee80211_vif *vif,
struct ieee80211_if_conf *conf)
{
struct b43legacy_wl *wl = hw_to_b43legacy_wl(hw);
@@ -2658,7 +2658,7 @@
return -ENODEV;
mutex_lock(&wl->mutex);
spin_lock_irqsave(&wl->irq_lock, flags);
- B43legacy_WARN_ON(wl->if_id != if_id);
+ B43legacy_WARN_ON(wl->vif != vif);
if (conf->bssid)
memcpy(wl->bssid, conf->bssid, ETH_ALEN);
else
@@ -3177,7 +3177,7 @@
dev = wl->current_dev;
wl->operating = 1;
- wl->if_id = conf->if_id;
+ wl->vif = conf->vif;
wl->if_type = conf->type;
memcpy(wl->mac_addr, conf->mac_addr, ETH_ALEN);
@@ -3205,7 +3205,8 @@
mutex_lock(&wl->mutex);
B43legacy_WARN_ON(!wl->operating);
- B43legacy_WARN_ON(wl->if_id != conf->if_id);
+ B43legacy_WARN_ON(wl->vif != conf->vif);
+ wl->vif = NULL;
wl->operating = 0;
diff --git a/drivers/net/wireless/b43legacy/xmit.c b/drivers/net/wireless/b43legacy/xmit.c
index fa095d4..e20c552 100644
--- a/drivers/net/wireless/b43legacy/xmit.c
+++ b/drivers/net/wireless/b43legacy/xmit.c
@@ -223,7 +223,7 @@
} else {
int fbrate_base100kbps = B43legacy_RATE_TO_100KBPS(rate_fb);
txhdr->dur_fb = ieee80211_generic_frame_duration(dev->wl->hw,
- dev->wl->if_id,
+ txctl->vif,
fragment_len,
fbrate_base100kbps);
}
@@ -312,7 +312,7 @@
if (txctl->flags & IEEE80211_TXCTL_USE_CTS_PROTECT) {
ieee80211_ctstoself_get(dev->wl->hw,
- dev->wl->if_id,
+ txctl->vif,
fragment_data,
fragment_len, txctl,
(struct ieee80211_cts *)
@@ -321,7 +321,7 @@
len = sizeof(struct ieee80211_cts);
} else {
ieee80211_rts_get(dev->wl->hw,
- dev->wl->if_id,
+ txctl->vif,
fragment_data, fragment_len, txctl,
(struct ieee80211_rts *)
(txhdr->rts_frame));