ehea: Use DEVICE_ATTR_*() macro

Use DEVICE_ATTR_*() helper instead of plain DEVICE_ATTR,
which makes the code a bit shorter and easier to read.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/ibm/ehea/ehea_main.c

@@ -2867,14 +2867,14 @@ static int ehea_get_jumboframe_status(struct ehea_port *port, int *jumbo)
 	return ret;
 }
 
-static ssize_t ehea_show_port_id(struct device *dev,
-				 struct device_attribute *attr, char *buf)
+static ssize_t log_port_id_show(struct device *dev,
+				struct device_attribute *attr, char *buf)
 {
 	struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev);
 	return sprintf(buf, "%d", port->logical_port_id);
 }
 
-static DEVICE_ATTR(log_port_id, 0444, ehea_show_port_id, NULL);
+static DEVICE_ATTR_RO(log_port_id);
 
 static void logical_port_release(struct device *dev)
 {
@@ -3113,7 +3113,7 @@ static struct device_node *ehea_get_eth_dn(struct ehea_adapter *adapter,
 	return NULL;
 }
 
-static ssize_t ehea_probe_port(struct device *dev,
+static ssize_t probe_port_store(struct device *dev,
 			       struct device_attribute *attr,
 			       const char *buf, size_t count)
 {
@@ -3168,9 +3168,9 @@ static ssize_t ehea_probe_port(struct device *dev,
 	return (ssize_t) count;
 }
 
-static ssize_t ehea_remove_port(struct device *dev,
-				struct device_attribute *attr,
-				const char *buf, size_t count)
+static ssize_t remove_port_store(struct device *dev,
+				 struct device_attribute *attr,
+				 const char *buf, size_t count)
 {
 	struct ehea_adapter *adapter = dev_get_drvdata(dev);
 	struct ehea_port *port;
@@ -3203,8 +3203,8 @@ static ssize_t ehea_remove_port(struct device *dev,
 	return (ssize_t) count;
 }
 
-static DEVICE_ATTR(probe_port, 0200, NULL, ehea_probe_port);
-static DEVICE_ATTR(remove_port, 0200, NULL, ehea_remove_port);
+static DEVICE_ATTR_WO(probe_port);
+static DEVICE_ATTR_WO(remove_port);
 
 static int ehea_create_device_sysfs(struct platform_device *dev)
 {