greybus: svc: clean up log messages

Use dev_err and friends with the svc device for messages.
Clean up error messages.
Demote a few warnings to warning level.
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/svc.c

@@ -7,7 +7,6 @@
  * Released under the GPLv2 only.
  */
 
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 #include <linux/workqueue.h>
 
 #include "greybus.h"
@@ -87,15 +86,15 @@ int gb_svc_dme_peer_get(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector,
 				&request, sizeof(request),
 				&response, sizeof(response));
 	if (ret) {
-		pr_err("failed to get DME attribute (%hhu %hx %hu) %d\n",
+		dev_err(&svc->dev, "failed to get DME attribute (%hhu %hx %hu): %d\n",
 				intf_id, attr, selector, ret);
 		return ret;
 	}
 
 	result = le16_to_cpu(response.result_code);
 	if (result) {
-		pr_err("Unipro error %hu while getting DME attribute (%hhu %hx %hu)\n",
-		       result, intf_id, attr, selector);
+		dev_err(&svc->dev, "UniPro error while getting DME attribute (%hhu %hx %hu): %hu\n",
+				intf_id, attr, selector, result);
 		return -EINVAL;
 	}
 
@@ -123,15 +122,15 @@ int gb_svc_dme_peer_set(struct gb_svc *svc, u8 intf_id, u16 attr, u16 selector,
 				&request, sizeof(request),
 				&response, sizeof(response));
 	if (ret) {
-		pr_err("failed to set DME attribute (%hhu %hx %hu %u) %d\n",
+		dev_err(&svc->dev, "failed to set DME attribute (%hhu %hx %hu %u): %d\n",
 				intf_id, attr, selector, value, ret);
 		return ret;
 	}
 
 	result = le16_to_cpu(response.result_code);
 	if (result) {
-		pr_err("Unipro error %hu while setting DME attribute (%hhu %hx %hu %u)\n",
-		       result, intf_id, attr, selector, value);
+		dev_err(&svc->dev, "UniPro error while setting DME attribute (%hhu %hx %hu %u): %hu\n",
+				intf_id, attr, selector, value, result);
 		return -EINVAL;
 	}
 
@@ -233,9 +232,10 @@ void gb_svc_connection_destroy(struct gb_svc *svc, u8 intf1_id, u16 cport1_id,
 
 	ret = gb_operation_sync(connection, GB_SVC_TYPE_CONN_DESTROY,
 				&request, sizeof(request), NULL, 0);
-	if (ret)
-		pr_err("failed to destroy connection (%hhu:%hu %hhu:%hu) %d\n",
+	if (ret) {
+		dev_err(&svc->dev, "failed to destroy connection (%hhu:%hu %hhu:%hu): %d\n",
 				intf1_id, cport1_id, intf2_id, cport2_id, ret);
+	}
 }
 EXPORT_SYMBOL_GPL(gb_svc_connection_destroy);
 
@@ -265,20 +265,21 @@ static void gb_svc_route_destroy(struct gb_svc *svc, u8 intf1_id, u8 intf2_id)
 
 	ret = gb_operation_sync(svc->connection, GB_SVC_TYPE_ROUTE_DESTROY,
 				&request, sizeof(request), NULL, 0);
-	if (ret)
-		pr_err("failed to destroy route (%hhu %hhu) %d\n",
+	if (ret) {
+		dev_err(&svc->dev, "failed to destroy route (%hhu %hhu): %d\n",
 				intf1_id, intf2_id, ret);
+	}
 }
 
 static int gb_svc_version_request(struct gb_operation *op)
 {
 	struct gb_connection *connection = op->connection;
+	struct gb_svc *svc = connection->private;
 	struct gb_protocol_version_request *request;
 	struct gb_protocol_version_response *response;
 
 	if (op->request->payload_size < sizeof(*request)) {
-		pr_err("%d: short version request (%zu < %zu)\n",
-				connection->intf_cport_id,
+		dev_err(&svc->dev, "short version request (%zu < %zu)\n",
 				op->request->payload_size,
 				sizeof(*request));
 		return -EINVAL;
@@ -287,20 +288,16 @@ static int gb_svc_version_request(struct gb_operation *op)
 	request = op->request->payload;
 
 	if (request->major > GB_SVC_VERSION_MAJOR) {
-		pr_err("%d: unsupported major version (%hhu > %hhu)\n",
-		       connection->intf_cport_id, request->major,
-		       GB_SVC_VERSION_MAJOR);
+		dev_warn(&svc->dev, "unsupported major version (%hhu > %hhu)\n",
+				request->major, GB_SVC_VERSION_MAJOR);
 		return -ENOTSUPP;
 	}
 
 	connection->module_major = request->major;
 	connection->module_minor = request->minor;
 
-	if (!gb_operation_response_alloc(op, sizeof(*response), GFP_KERNEL)) {
-		pr_err("%d: error allocating response\n",
-		       connection->intf_cport_id);
+	if (!gb_operation_response_alloc(op, sizeof(*response), GFP_KERNEL))
 		return -ENOMEM;
-	}
 
 	response = op->response->payload;
 	response->major = connection->module_major;
@@ -322,8 +319,8 @@ static int gb_svc_hello(struct gb_operation *op)
 	 * request, use that to create an endo.
 	 */
 	if (op->request->payload_size < sizeof(*hello_request)) {
-		pr_err("%d: Illegal size of hello request (%zu < %zu)\n",
-		       connection->intf_cport_id, op->request->payload_size,
+		dev_warn(&svc->dev, "short hello request (%zu < %zu)\n",
+				op->request->payload_size,
 				sizeof(*hello_request));
 		return -EINVAL;
 	}
@@ -401,15 +398,15 @@ static void svc_process_hotplug(struct work_struct *work)
 		 * Remove the interface and add it again, and let user know
 		 * about this with a print message.
 		 */
-		pr_info("%d: Removed interface (%hhu) to add it again\n",
-			connection->intf_cport_id, intf_id);
+		dev_info(&svc->dev, "removing interface %hhu to add it again\n",
+				intf_id);
 		svc_intf_remove(connection, intf);
 	}
 
 	intf = gb_interface_create(hd, intf_id);
 	if (!intf) {
-		pr_err("%d: Failed to create interface with id %hhu\n",
-		       connection->intf_cport_id, intf_id);
+		dev_err(&svc->dev, "failed to create interface %hhu\n",
+				intf_id);
 		goto free_svc_hotplug;
 	}
 
@@ -434,15 +431,15 @@ static void svc_process_hotplug(struct work_struct *work)
 				   GB_DEVICE_ID_MODULES_START, 0, GFP_KERNEL);
 	if (device_id < 0) {
 		ret = device_id;
-		pr_err("%d: Failed to allocate device id for interface with id %hhu (%d)\n",
-		       connection->intf_cport_id, intf_id, ret);
+		dev_err(&svc->dev, "failed to allocate device id for interface %hhu: %d\n",
+				intf_id, ret);
 		goto destroy_interface;
 	}
 
 	ret = gb_svc_intf_device_id(svc, intf_id, device_id);
 	if (ret) {
-		pr_err("%d: Device id operation failed, interface %hhu device_id %hhu (%d)\n",
-		       connection->intf_cport_id, intf_id, device_id, ret);
+		dev_err(&svc->dev, "failed to set device id %hhu for interface %hhu: %d\n",
+				device_id, intf_id, ret);
 		goto ida_put;
 	}
 
@@ -452,15 +449,15 @@ static void svc_process_hotplug(struct work_struct *work)
 	ret = gb_svc_route_create(svc, svc->ap_intf_id, GB_DEVICE_ID_AP,
 				  intf_id, device_id);
 	if (ret) {
-		pr_err("%d: Route create operation failed, interface %hhu device_id %hhu (%d)\n",
-		       connection->intf_cport_id, intf_id, device_id, ret);
+		dev_err(&svc->dev, "failed to create route to interface %hhu (device id %hhu): %d\n",
+				intf_id, device_id, ret);
 		goto svc_id_free;
 	}
 
 	ret = gb_interface_init(intf, device_id);
 	if (ret) {
-		pr_err("%d: Failed to initialize interface, interface %hhu device_id %hhu (%d)\n",
-		       connection->intf_cport_id, intf_id, device_id, ret);
+		dev_err(&svc->dev, "failed to initialize interface %hhu (device id %hhu): %d\n",
+				intf_id, device_id, ret);
 		goto destroy_route;
 	}
 
@@ -492,12 +489,13 @@ static void svc_process_hotplug(struct work_struct *work)
  */
 static int gb_svc_intf_hotplug_recv(struct gb_operation *op)
 {
+	struct gb_svc *svc = op->connection->private;
 	struct gb_message *request = op->request;
 	struct svc_hotplug *svc_hotplug;
 
 	if (request->payload_size < sizeof(svc_hotplug->data)) {
-		pr_err("%d: short hotplug request received (%zu < %zu)\n",
-		       op->connection->intf_cport_id, request->payload_size,
+		dev_warn(&svc->dev, "short hotplug request received (%zu < %zu)\n",
+				request->payload_size,
 				sizeof(svc_hotplug->data));
 		return -EINVAL;
 	}
@@ -517,6 +515,7 @@ static int gb_svc_intf_hotplug_recv(struct gb_operation *op)
 
 static int gb_svc_intf_hot_unplug_recv(struct gb_operation *op)
 {
+	struct gb_svc *svc = op->connection->private;
 	struct gb_message *request = op->request;
 	struct gb_svc_intf_hot_unplug_request *hot_unplug = request->payload;
 	struct gb_host_device *hd = op->connection->hd;
@@ -524,8 +523,8 @@ static int gb_svc_intf_hot_unplug_recv(struct gb_operation *op)
 	u8 intf_id;
 
 	if (request->payload_size < sizeof(*hot_unplug)) {
-		pr_err("connection %d: short hot unplug request received (%zu < %zu)\n",
-		       op->connection->intf_cport_id, request->payload_size,
+		dev_warn(&svc->dev, "short hot unplug request received (%zu < %zu)\n",
+				request->payload_size,
 				sizeof(*hot_unplug));
 		return -EINVAL;
 	}
@@ -534,8 +533,8 @@ static int gb_svc_intf_hot_unplug_recv(struct gb_operation *op)
 
 	intf = gb_interface_find(hd, intf_id);
 	if (!intf) {
-		pr_err("connection %d: Couldn't find interface for id %hhu\n",
-		       op->connection->intf_cport_id, intf_id);
+		dev_warn(&svc->dev, "could not find hot-unplug interface %hhu\n",
+				intf_id);
 		return -EINVAL;
 	}
 
@@ -546,14 +545,14 @@ static int gb_svc_intf_hot_unplug_recv(struct gb_operation *op)
 
 static int gb_svc_intf_reset_recv(struct gb_operation *op)
 {
+	struct gb_svc *svc = op->connection->private;
 	struct gb_message *request = op->request;
 	struct gb_svc_intf_reset_request *reset;
 	u8 intf_id;
 
 	if (request->payload_size < sizeof(*reset)) {
-		pr_err("connection %d: short reset request received (%zu < %zu)\n",
-		       op->connection->intf_cport_id, request->payload_size,
-		       sizeof(*reset));
+		dev_warn(&svc->dev, "short reset request received (%zu < %zu)\n",
+				request->payload_size, sizeof(*reset));
 		return -EINVAL;
 	}
 	reset = request->payload;
@@ -597,8 +596,8 @@ static int gb_svc_request_recv(u8 type, struct gb_operation *op)
 	}
 
 	if (ret) {
-		pr_warn("connection %d: unexpected SVC request 0x%02x received (state %u)\n",
-			connection->intf_cport_id, type, svc->state);
+		dev_warn(&svc->dev, "unexpected request 0x%02x received (state %u)\n",
+				type, svc->state);
 		return ret;
 	}
 
@@ -620,8 +619,7 @@ static int gb_svc_request_recv(u8 type, struct gb_operation *op)
 	case GB_SVC_TYPE_INTF_RESET:
 		return gb_svc_intf_reset_recv(op);
 	default:
-		pr_err("connection %d: unsupported request: %hhu\n",
-		       connection->intf_cport_id, type);
+		dev_warn(&svc->dev, "unsupported request 0x%02x\n", type);
 		return -EINVAL;
 	}
 }