libertas: convert DEEP_SLEEP timer to a direct command

Other uses were already used direct command paths.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/libertas/cmd.c

@@ -1208,10 +1208,6 @@ int lbs_prepare_and_send_command(struct lbs_private *priv,
 	cmdptr->result = 0;
 
 	switch (cmd_no) {
-	case CMD_802_11_DEEP_SLEEP:
-		cmdptr->command = cpu_to_le16(CMD_802_11_DEEP_SLEEP);
-		cmdptr->size = cpu_to_le16(sizeof(struct cmd_header));
-		break;
 	default:
 		lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
 		ret = -1;

drivers/net/wireless/libertas/main.c

@@ -658,7 +658,6 @@ static void lbs_cmd_timeout_handler(unsigned long data)
 static void auto_deepsleep_timer_fn(unsigned long data)
 {
 	struct lbs_private *priv = (struct lbs_private *)data;
-	int ret;
 
 	lbs_deb_enter(LBS_DEB_CMD);
 
@@ -668,12 +667,13 @@ static void auto_deepsleep_timer_fn(unsigned long data)
 		if (priv->is_auto_deep_sleep_enabled &&
 		    (!priv->wakeup_dev_required) &&
 		    (priv->connect_status != LBS_CONNECTED)) {
+			struct cmd_header cmd;
+
 			lbs_deb_main("Entering auto deep sleep mode...\n");
-			ret = lbs_prepare_and_send_command(priv,
-					CMD_802_11_DEEP_SLEEP, 0,
-					0, 0, NULL);
-			if (ret)
-				lbs_pr_err("Enter Deep Sleep command failed\n");
+			memset(&cmd, 0, sizeof(cmd));
+			cmd.size = cpu_to_le16(sizeof(cmd));
+			lbs_cmd_async(priv, CMD_802_11_DEEP_SLEEP, &cmd,
+					sizeof(cmd));
 		}
 	}
 	mod_timer(&priv->auto_deepsleep_timer , jiffies +