iwlagn: use virtual interface in TX aggregation handling

Most of the TX aggregation handling can be passed
the virtual interface directly instead of having
to rely on priv->vif.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.h b/drivers/net/wireless/iwlwifi/iwl-agn.h
index f52bedb..c441773 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.h
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.h
@@ -135,9 +135,10 @@
 void iwlagn_hwrate_to_tx_control(struct iwl_priv *priv, u32 rate_n_flags,
 			      struct ieee80211_tx_info *info);
 int iwlagn_tx_skb(struct iwl_priv *priv, struct sk_buff *skb);
-int iwlagn_tx_agg_start(struct iwl_priv *priv,
+int iwlagn_tx_agg_start(struct iwl_priv *priv, struct ieee80211_vif *vif,
 			const u8 *ra, u16 tid, u16 *ssn);
-int iwlagn_tx_agg_stop(struct iwl_priv *priv , const u8 *ra, u16 tid);
+int iwlagn_tx_agg_stop(struct iwl_priv *priv, struct ieee80211_vif *vif,
+		       const u8 *ra, u16 tid);
 int iwlagn_txq_check_empty(struct iwl_priv *priv,
 			   int sta_id, u8 tid, int txq_id);
 void iwlagn_rx_reply_compressed_ba(struct iwl_priv *priv,