iwlwifi: rename ps_mode to sm_ps

This patch renames iwl_priv.ps_mode for clearer
iwl_priv.current_ht_config.sm_ps (spatial multiplexing power save).
Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/iwlwifi/iwl-agn.c

@@ -564,8 +564,6 @@ static void iwl4965_ht_conf(struct iwl_priv *priv,
 	if (!iwl_conf->is_ht)
 		return;
 
-	priv->ps_mode = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2);
-
 	if (ht_conf->cap & IEEE80211_HT_CAP_SGI_20)
 		iwl_conf->sgf |= HT_SHORT_GI_20MHZ;
 	if (ht_conf->cap & IEEE80211_HT_CAP_SGI_40)
@@ -586,6 +584,8 @@ static void iwl4965_ht_conf(struct iwl_priv *priv,
 		iwl_conf->supported_chan_width = 0;
 	}
 
+	iwl_conf->sm_ps = (u8)((ht_conf->cap & IEEE80211_HT_CAP_SM_PS) >> 2);
+
 	memcpy(iwl_conf->supp_mcs_set, ht_conf->supp_mcs_set, 16);
 
 	iwl_conf->control_channel = ht_bss_conf->primary_channel;

drivers/net/wireless/iwlwifi/iwl-core.c

@@ -709,7 +709,8 @@ static int iwl_get_active_rx_chain_count(struct iwl_priv *priv)
 	bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
 
 	/* # of Rx chains to use when expecting MIMO. */
-	if (is_single || (!is_cam && (priv->ps_mode == WLAN_HT_CAP_SM_PS_STATIC)))
+	if (is_single || (!is_cam && (priv->current_ht_config.sm_ps ==
+						 WLAN_HT_CAP_SM_PS_STATIC)))
 		return 2;
 	else
 		return 3;
@@ -720,7 +721,7 @@ static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
 	int idle_cnt;
 	bool is_cam = !test_bit(STATUS_POWER_PMI, &priv->status);
 	/* # Rx chains when idling and maybe trying to save power */
-	switch (priv->ps_mode) {
+	switch (priv->current_ht_config.sm_ps) {
 	case WLAN_HT_CAP_SM_PS_STATIC:
 	case WLAN_HT_CAP_SM_PS_DYNAMIC:
 		idle_cnt = (is_cam) ? 2 : 1;
@@ -730,7 +731,8 @@ static int iwl_get_idle_rx_chain_count(struct iwl_priv *priv, int active_cnt)
 		break;
 	case WLAN_HT_CAP_SM_PS_INVALID:
 	default:
-		IWL_ERROR("invalide mimo ps mode %d\n", priv->ps_mode);
+		IWL_ERROR("invalide mimo ps mode %d\n",
+			   priv->current_ht_config.sm_ps);
 		WARN_ON(1);
 		idle_cnt = -1;
 		break;
@@ -912,7 +914,7 @@ int iwl_init_drv(struct iwl_priv *priv)
 	priv->iw_mode = IEEE80211_IF_TYPE_STA;
 
 	priv->use_ant_b_for_management_frame = 1; /* start with ant B */
-	priv->ps_mode = WLAN_HT_CAP_SM_PS_DISABLED;
+	priv->current_ht_config.sm_ps = WLAN_HT_CAP_SM_PS_DISABLED;
 
 	/* Choose which receivers/antennas to use */
 	iwl_set_rxon_chain(priv);

drivers/net/wireless/iwlwifi/iwl-dev.h

@@ -406,6 +406,7 @@ struct iwl_ht_info {
 	/* self configuration data */
 	u8 is_ht;
 	u8 supported_chan_width;
+	u8 sm_ps;
 	u8 is_green_field;
 	u8 sgf;			/* HT_SHORT_GI_* short guard interval */
 	u8 max_amsdu_size;
@@ -990,7 +991,6 @@ struct iwl_priv {
 	 * hardware */
 	u16 assoc_id;
 	u16 assoc_capability;
-	u8 ps_mode;
 
 	struct iwl_qos_info qos_data;