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>

1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/net/wireless/b43legacy/xmit.c b/drivers/net/wireless/b43legacy/xmit.c
index fa095d43237f..e20c552442d5 100644
--- a/drivers/net/wireless/b43legacy/xmit.c
+++ b/drivers/net/wireless/b43legacy/xmit.c
@@ -223,7 +223,7 @@ static void generate_txhdr_fw3(struct b43legacy_wldev *dev,
         } 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 @@ static void generate_txhdr_fw3(struct b43legacy_wldev *dev,
 
                 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 @@ static void generate_txhdr_fw3(struct b43legacy_wldev *dev,
                         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));