From: Johannes Berg <johannes.berg@intel.com>
Date: Wed, 13 Jul 2011 20:27:25 +0000 (-0700)
Subject: iwlagn: remove keyinfo cache
X-Git-Tag: firefly_0821_release~3680^2~4429^2~12^2~42^2~40
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=a920bffb88260aac36bfd05745696dc6aa256627;p=firefly-linux-kernel-4.4.55.git

iwlagn: remove keyinfo cache

iwlagn keeps a copy of key stuff internally but
never actually uses it, so remove it.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
---

diff --git a/drivers/net/wireless/iwlwifi/iwl-agn-sta.c b/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
index 67b9c2bacc5f..395dee1c1440 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn-sta.c
@@ -234,7 +234,6 @@ int iwl_set_default_wep_key(struct iwl_priv *priv,
 
 	keyconf->flags &= ~IEEE80211_KEY_FLAG_GENERATE_IV;
 	keyconf->hw_key_idx = HW_KEY_DEFAULT;
-	priv->stations[ctx->ap_sta_id].keyinfo.cipher = keyconf->cipher;
 
 	ctx->wep_keys[keyconf->keyidx].key_size = keyconf->keylen;
 	memcpy(&ctx->wep_keys[keyconf->keyidx].key, &keyconf->key,
@@ -272,13 +271,6 @@ static int iwl_set_wep_dynamic_key_info(struct iwl_priv *priv,
 
 	spin_lock_irqsave(&priv->sta_lock, flags);
 
-	priv->stations[sta_id].keyinfo.cipher = keyconf->cipher;
-	priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
-	priv->stations[sta_id].keyinfo.keyidx = keyconf->keyidx;
-
-	memcpy(priv->stations[sta_id].keyinfo.key,
-				keyconf->key, keyconf->keylen);
-
 	memcpy(&priv->stations[sta_id].sta.key.key[3],
 				keyconf->key, keyconf->keylen);
 
@@ -323,11 +315,6 @@ static int iwl_set_ccmp_dynamic_key_info(struct iwl_priv *priv,
 	keyconf->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
 
 	spin_lock_irqsave(&priv->sta_lock, flags);
-	priv->stations[sta_id].keyinfo.cipher = keyconf->cipher;
-	priv->stations[sta_id].keyinfo.keylen = keyconf->keylen;
-
-	memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key,
-	       keyconf->keylen);
 
 	memcpy(priv->stations[sta_id].sta.key.key, keyconf->key,
 	       keyconf->keylen);
@@ -373,9 +360,6 @@ static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv,
 
 	spin_lock_irqsave(&priv->sta_lock, flags);
 
-	priv->stations[sta_id].keyinfo.cipher = keyconf->cipher;
-	priv->stations[sta_id].keyinfo.keylen = 16;
-
 	if ((priv->stations[sta_id].sta.key.key_flags & STA_KEY_FLG_ENCRYPT_MSK)
 			== STA_KEY_FLG_NO_ENC)
 		priv->stations[sta_id].sta.key.key_offset =
@@ -388,10 +372,6 @@ static int iwl_set_tkip_dynamic_key_info(struct iwl_priv *priv,
 
 	priv->stations[sta_id].sta.key.key_flags = key_flags;
 
-
-	/* This copy is acutally not needed: we get the key with each TX */
-	memcpy(priv->stations[sta_id].keyinfo.key, keyconf->key, 16);
-
 	memcpy(priv->stations[sta_id].sta.key.key, keyconf->key, 16);
 
 	spin_unlock_irqrestore(&priv->sta_lock, flags);
@@ -477,8 +457,6 @@ int iwl_remove_dynamic_key(struct iwl_priv *priv,
 		&priv->ucode_key_table))
 		IWL_ERR(priv, "index %d not used in uCode key table.\n",
 			priv->stations[sta_id].sta.key.key_offset);
-	memset(&priv->stations[sta_id].keyinfo, 0,
-					sizeof(struct iwl_hw_key));
 	memset(&priv->stations[sta_id].sta.key, 0,
 					sizeof(struct iwl_keyinfo));
 	priv->stations[sta_id].sta.key.key_flags =
diff --git a/drivers/net/wireless/iwlwifi/iwl-dev.h b/drivers/net/wireless/iwlwifi/iwl-dev.h
index 72ef50e319d2..da9048856a3b 100644
--- a/drivers/net/wireless/iwlwifi/iwl-dev.h
+++ b/drivers/net/wireless/iwlwifi/iwl-dev.h
@@ -397,13 +397,6 @@ struct iwl_tid_data {
 	struct iwl_ht_agg agg;
 };
 
-struct iwl_hw_key {
-	u32 cipher;
-	int keylen;
-	u8 keyidx;
-	u8 key[32];
-};
-
 union iwl_ht_rate_supp {
 	u16 rates;
 	struct {
@@ -456,7 +449,6 @@ struct iwl_station_entry {
 	struct iwl_addsta_cmd sta;
 	struct iwl_tid_data tid[MAX_TID_COUNT];
 	u8 used, ctxid;
-	struct iwl_hw_key keyinfo;
 	struct iwl_link_quality_cmd *lq;
 };