iwlwifi: remove host commands structures from iwl_cmd

This patch removes host commands structures from iwl_cmd
to make more HW oblivious
tx cmd was left it needs special treatment.
Signed-off-by: NTomas Winkler <tomas.winkler@intel.com>
Reviewed-by: NZhu Yi <yi.zhu@intel.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

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

@@ -268,23 +268,16 @@ struct iwl_cmd {
 	struct iwl_cmd_meta meta;	/* driver data */
 	struct iwl_cmd_header hdr;	/* uCode API */
 	union {
-		struct iwl_addsta_cmd addsta;
-		struct iwl_led_cmd led;
 		u32 flags;
 		u8 val8;
 		u16 val16;
 		u32 val32;
-		struct iwl4965_bt_cmd bt;
-		struct iwl_powertable_cmd powertable;
-		struct iwl_qosparam_cmd qosparam;
 		struct iwl_tx_cmd tx;
-		struct iwl4965_rxon_assoc_cmd rxon_assoc;
-		struct iwl_rem_sta_cmd rm_sta;
-		u8 *indirect;
 		u8 payload[IWL_CMD_MAX_PAYLOAD];
 	} __attribute__ ((packed)) cmd;
 } __attribute__ ((packed));
 
+
 struct iwl_host_cmd {
 	u8 id;
 	u16 len;

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

@@ -102,7 +102,9 @@ static int iwl_add_sta_callback(struct iwl_priv *priv,
 				   struct iwl_cmd *cmd, struct sk_buff *skb)
 {
 	struct iwl_rx_packet *res = NULL;
-	u8 sta_id = cmd->cmd.addsta.sta.sta_id;
+	struct iwl_addsta_cmd *addsta =
+		(struct iwl_addsta_cmd *)cmd->cmd.payload;
+	u8 sta_id = addsta->sta.sta_id;
 
 	if (!skb) {
 		IWL_ERROR("Error: Response NULL in REPLY_ADD_STA.\n");
@@ -320,7 +322,9 @@ static int iwl_remove_sta_callback(struct iwl_priv *priv,
 				   struct iwl_cmd *cmd, struct sk_buff *skb)
 {
 	struct iwl_rx_packet *res = NULL;
-	const char *addr = cmd->cmd.rm_sta.addr;
+	struct iwl_rem_sta_cmd *rm_sta =
+		 (struct iwl_rem_sta_cmd *)cmd->cmd.payload;
+	const char *addr = rm_sta->addr;
 
 	if (!skb) {
 		IWL_ERROR("Error: Response NULL in REPLY_REMOVE_STA.\n");