libertas: Increase priority of 'unknown command' warnings

Using the deprecated lbs_prepare_and_send_command() function for a
command which it doesn't understand is an error; complain loudly about
it even when we're not debugging.

The mesh stats bug, where we converted MESH_ACCESS to a direct command
but accidentally missed one user which was still trying to do it through
lbs_prepare_and_send_command(), would have been caught a lot quicker if
we'd done this sooner. Such bugs aren't entirely unlikely in future too,
as we convert more code to stop using this function.
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/libertas/cmd.c

@@ -1452,7 +1452,7 @@ int lbs_prepare_and_send_command(struct lbs_private *priv,
 		ret = lbs_cmd_bcn_ctrl(priv, cmdptr, cmd_action);
 		break;
 	default:
-		lbs_deb_host("PREP_CMD: unknown command 0x%04x\n", cmd_no);
+		lbs_pr_err("PREP_CMD: unknown command 0x%04x\n", cmd_no);
 		ret = -1;
 		break;
 	}

drivers/net/wireless/libertas/cmdresp.c

@@ -376,8 +376,8 @@ static inline int handle_cmd_response(struct lbs_private *priv,
 		break;
 
 	default:
-		lbs_deb_host("CMD_RESP: unknown cmd response 0x%04x\n",
-			     le16_to_cpu(resp->command));
+		lbs_pr_err("CMD_RESP: unknown cmd response 0x%04x\n",
+			   le16_to_cpu(resp->command));
 		break;
 	}
 	lbs_deb_leave(LBS_DEB_HOST);