libertas: convert CMD_FWT_ACCESS to a direct command

Slightly different approach here since there are so many arguments to
the firmware command.  Just let the caller fill them in before pushing
the command to the firmware.
Signed-off-by: NDan Williams <dcbw@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>

drivers/net/wireless/libertas/cmd.c

@@ -1206,14 +1206,6 @@ int lbs_prepare_and_send_command(struct lbs_private *priv,
 		ret = lbs_cmd_802_11_ps_mode(cmdptr, cmd_action);
 		break;
 
-#ifdef CONFIG_LIBERTAS_MESH
-
-	case CMD_FWT_ACCESS:
-		ret = lbs_cmd_fwt_access(cmdptr, cmd_action, pdata_buf);
-		break;
-
-#endif
-
 	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));

drivers/net/wireless/libertas/cmdresp.c

@@ -59,7 +59,6 @@ static inline int handle_cmd_response(struct lbs_private *priv,
 {
 	struct cmd_ds_command *resp = (struct cmd_ds_command *) cmd_response;
 	int ret = 0;
-	unsigned long flags;
 	uint16_t respcmd = le16_to_cpu(resp->command);
 
 	lbs_deb_enter(LBS_DEB_HOST);
@@ -68,14 +67,6 @@ static inline int handle_cmd_response(struct lbs_private *priv,
 	case CMD_RET(CMD_802_11_BEACON_STOP):
 		break;
 
-	case CMD_RET(CMD_FWT_ACCESS):
-		spin_lock_irqsave(&priv->driver_lock, flags);
-		if (priv->cur_cmd->callback_arg)
-			memcpy((void *)priv->cur_cmd->callback_arg, &resp->params.fwt,
-			       sizeof(resp->params.fwt));
-		spin_unlock_irqrestore(&priv->driver_lock, flags);
-		break;
-
 	default:
 		lbs_pr_err("CMD_RESP: unknown cmd response 0x%04x\n",
 			   le16_to_cpu(resp->command));

drivers/net/wireless/libertas/host.h

@@ -912,6 +912,8 @@ struct cmd_ds_bt_access {
 } __packed;
 
 struct cmd_ds_fwt_access {
+	struct cmd_header hdr;
+
 	__le16 action;
 	__le32 id;
 	u8 valid;
@@ -961,7 +963,6 @@ struct cmd_ds_command {
 	/* command Body */
 	union {
 		struct cmd_ds_802_11_ps_mode psmode;
-		struct cmd_ds_fwt_access fwt;
 	} params;
 } __packed;
 #endif

drivers/net/wireless/libertas/mesh.c

@@ -613,25 +613,31 @@ int lbs_mesh_bt_get_entry(struct lbs_private *priv, u32 id, u8 *addr1)
 	return ret;
 }
 
-int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
-			       u16 cmd_action, void *pdata_buf)
+/**
+ *  @brief Access the mesh forwarding table
+ *
+ *  @param priv    	A pointer to struct lbs_private structure
+ *  @param cmd_action	The forwarding table action to perform
+ *  @param cmd		The pre-filled FWT_ACCESS command
+ *
+ *  @return 	   	0 on success and 'cmd' will be filled with the
+ *                        firmware's response
+ */
+int lbs_cmd_fwt_access(struct lbs_private *priv, u16 cmd_action,
+			struct cmd_ds_fwt_access *cmd)
 {
-	struct cmd_ds_fwt_access *fwt_access = &cmd->params.fwt;
-	lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
+	int ret;
 
-	cmd->command = cpu_to_le16(CMD_FWT_ACCESS);
-	cmd->size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access) +
-		sizeof(struct cmd_header));
-	cmd->result = 0;
+	lbs_deb_enter_args(LBS_DEB_CMD, "action %d", cmd_action);
 
-	if (pdata_buf)
-		memcpy(fwt_access, pdata_buf, sizeof(*fwt_access));
-	else
-		memset(fwt_access, 0, sizeof(*fwt_access));
+	cmd->hdr.command = cpu_to_le16(CMD_FWT_ACCESS);
+	cmd->hdr.size = cpu_to_le16(sizeof(struct cmd_ds_fwt_access));
+	cmd->hdr.result = 0;
+	cmd->action = cpu_to_le16(cmd_action);
 
-	fwt_access->action = cpu_to_le16(cmd_action);
+	ret = lbs_cmd_with_response(priv, CMD_FWT_ACCESS, cmd);
 
-	lbs_deb_leave(LBS_DEB_CMD);
+	lbs_deb_leave_args(LBS_DEB_CMD, "ret %d", ret);
 	return 0;
 }
 

drivers/net/wireless/libertas/mesh.h

@@ -8,6 +8,7 @@
 #include <net/iw_handler.h>
 #include <net/lib80211.h>
 
+#include "host.h"
 
 #ifdef CONFIG_LIBERTAS_MESH
 
@@ -57,8 +58,9 @@ int lbs_mesh_bt_get_inverted(struct lbs_private *priv, bool *inverted);
 int lbs_mesh_bt_set_inverted(struct lbs_private *priv, bool inverted);
 int lbs_mesh_bt_get_entry(struct lbs_private *priv, u32 id, u8 *addr1);
 
-int lbs_cmd_fwt_access(struct cmd_ds_command *cmd,
-	u16 cmd_action, void *pdata_buf);
+int lbs_cmd_fwt_access(struct lbs_private *priv, u16 cmd_action,
+			struct cmd_ds_fwt_access *cmd);
+
 int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
 		    struct cmd_ds_mesh_access *cmd);
 int lbs_mesh_config_send(struct lbs_private *priv,