libertas: switch lbs_cmd() to take a _pointer_ to the command structure

This way, it looks more like a normal function.

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/libertas/cmd.c

@@ -56,7 +56,7 @@ int lbs_update_hw_spec(struct lbs_private *priv)
 	memset(&cmd, 0, sizeof(cmd));
 	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 	memcpy(cmd.permanentaddr, priv->current_addr, ETH_ALEN);
-	ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, cmd);
+	ret = lbs_cmd_with_response(priv, CMD_GET_HW_SPEC, &cmd);
 	if (ret)
 		goto out;
 
@@ -121,7 +121,7 @@ int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria,
 	cmd_config.gpio = gpio;
 	cmd_config.gap = gap;
 
-	ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, cmd_config);
+	ret = lbs_cmd_with_response(priv, CMD_802_11_HOST_SLEEP_CFG, &cmd_config);
 	if (ret) {
 		lbs_pr_info("HOST_SLEEP_CFG failed %d\n", ret);
 		return ret;
@@ -743,7 +743,7 @@ int lbs_get_data_rate(struct lbs_private *priv)
 	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 	cmd.action = cpu_to_le16(CMD_ACT_GET_TX_RATE);
 
-	ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, cmd);
+	ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 	if (ret)
 		goto out;
 
@@ -790,7 +790,7 @@ int lbs_set_data_rate(struct lbs_private *priv, u8 rate)
 		lbs_deb_cmd("DATA_RATE: setting auto\n");
 	}
 
-	ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, cmd);
+	ret = lbs_cmd_with_response(priv, CMD_802_11_DATA_RATE, &cmd);
 	if (ret)
 		goto out;
 
@@ -846,7 +846,7 @@ int lbs_get_channel(struct lbs_private *priv)
 	cmd.hdr.size = cpu_to_le16(sizeof(cmd));
 	cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_GET);
 
-	ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, cmd);
+	ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 	if (ret)
 		goto out;
 
@@ -878,7 +878,7 @@ int lbs_set_channel(struct lbs_private *priv, u8 channel)
 	cmd.action = cpu_to_le16(CMD_OPT_802_11_RF_CHANNEL_SET);
 	cmd.channel = cpu_to_le16(channel);
 
-	ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, cmd);
+	ret = lbs_cmd_with_response(priv, CMD_802_11_RF_CHANNEL, &cmd);
 	if (ret)
 		goto out;
 
@@ -1105,7 +1105,7 @@ int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
 
 	cmd->action = cpu_to_le16(cmd_action);
 
-	ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, (*cmd));
+	ret = lbs_cmd_with_response(priv, CMD_MESH_ACCESS, cmd);
 
 	lbs_deb_leave(LBS_DEB_CMD);
 	return ret;
@@ -1128,7 +1128,7 @@ int lbs_mesh_config(struct lbs_private *priv, int enable)
 	lbs_deb_cmd("mesh config channel %d SSID %s\n",
 		    priv->curbssparams.channel,
 		    escape_essid(priv->mesh_ssid, priv->mesh_ssid_len));
-	return lbs_cmd_with_response(priv, CMD_MESH_CONFIG, cmd);
+	return lbs_cmd_with_response(priv, CMD_MESH_CONFIG, &cmd);
 }
 
 static int lbs_cmd_bcn_ctrl(struct lbs_private * priv,
@@ -2160,6 +2160,7 @@ int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
 	lbs_deb_leave(LBS_DEB_CMD);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(lbs_cmd_copyback);
 
 /**
  *  @brief Simple way to call firmware functions

drivers/net/wireless/libertas/cmd.h

@@ -6,13 +6,11 @@
 #include "hostcmd.h"
 #include "dev.h"
 
-#define lbs_cmd(priv, cmdnr, cmd, callback, callback_arg) \
-	__lbs_cmd(priv, cmdnr, &(cmd).hdr, sizeof(cmd),	  \
-			callback, callback_arg)
+#define lbs_cmd(priv, cmdnr, cmd, cb, cb_arg)	\
+	__lbs_cmd(priv, cmdnr, &(cmd)->hdr, sizeof(*(cmd)), cb, cb_arg)
 
-#define lbs_cmd_with_response(priv, cmdnr, cmd) \
-	__lbs_cmd(priv, cmdnr, &(cmd).hdr, sizeof(cmd), \
-		  lbs_cmd_copyback, (unsigned long) &cmd)
+#define lbs_cmd_with_response(priv, cmdnr, cmd)	\
+	lbs_cmd(priv, cmdnr, cmd, lbs_cmd_copyback, (unsigned long) (cmd))
 
 int __lbs_cmd(struct lbs_private *priv, uint16_t command,
 	      struct cmd_header *in_cmd, int in_cmd_size, 

drivers/net/wireless/libertas/if_usb.c

@@ -109,7 +109,7 @@ static void if_usb_set_boot2_ver(struct lbs_private *priv)
 	b2_cmd.action = 0;
 	b2_cmd.version = priv->boot2_version;
 
-	if (lbs_cmd(priv, CMD_SET_BOOT2_VER, b2_cmd, NULL, 0))
+	if (lbs_cmd(priv, CMD_SET_BOOT2_VER, &b2_cmd, NULL, 0))
 		lbs_deb_usb("Setting boot2 version failed\n");
 }