sfc: 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/sfc/ef10.c

@@ -370,7 +370,7 @@ static int efx_ef10_get_mac_address_vf(struct efx_nic *efx, u8 *mac_address)
 	return 0;
 }
 
-static ssize_t efx_ef10_show_link_control_flag(struct device *dev,
+static ssize_t link_control_flag_show(struct device *dev,
 				      struct device_attribute *attr,
 				      char *buf)
 {
@@ -382,7 +382,7 @@ static ssize_t efx_ef10_show_link_control_flag(struct device *dev,
 		       ? 1 : 0);
 }
 
-static ssize_t efx_ef10_show_primary_flag(struct device *dev,
+static ssize_t primary_flag_show(struct device *dev,
 				 struct device_attribute *attr,
 				 char *buf)
 {
@@ -519,9 +519,8 @@ static void efx_ef10_cleanup_vlans(struct efx_nic *efx)
 	mutex_unlock(&nic_data->vlan_lock);
 }
 
-static DEVICE_ATTR(link_control_flag, 0444, efx_ef10_show_link_control_flag,
-		   NULL);
-static DEVICE_ATTR(primary_flag, 0444, efx_ef10_show_primary_flag, NULL);
+static DEVICE_ATTR_RO(link_control_flag);
+static DEVICE_ATTR_RO(primary_flag);
 
 static int efx_ef10_probe(struct efx_nic *efx)
 {

drivers/net/ethernet/sfc/efx.c

@@ -689,13 +689,13 @@ static struct notifier_block efx_netdev_notifier = {
 	.notifier_call = efx_netdev_event,
 };
 
-static ssize_t
-show_phy_type(struct device *dev, struct device_attribute *attr, char *buf)
+static ssize_t phy_type_show(struct device *dev,
+			     struct device_attribute *attr, char *buf)
 {
 	struct efx_nic *efx = dev_get_drvdata(dev);
 	return sprintf(buf, "%d\n", efx->phy_type);
 }
-static DEVICE_ATTR(phy_type, 0444, show_phy_type, NULL);
+static DEVICE_ATTR_RO(phy_type);
 
 static int efx_register_netdev(struct efx_nic *efx)
 {

drivers/net/ethernet/sfc/efx_common.c

@@ -1160,7 +1160,8 @@ void efx_fini_io(struct efx_nic *efx)
 }
 
 #ifdef CONFIG_SFC_MCDI_LOGGING
-static ssize_t show_mcdi_log(struct device *dev, struct device_attribute *attr,
+static ssize_t mcdi_logging_show(struct device *dev,
+				 struct device_attribute *attr,
 				 char *buf)
 {
 	struct efx_nic *efx = dev_get_drvdata(dev);
@@ -1169,7 +1170,8 @@ static ssize_t show_mcdi_log(struct device *dev, struct device_attribute *attr,
 	return scnprintf(buf, PAGE_SIZE, "%d\n", mcdi->logging_enabled);
 }
 
-static ssize_t set_mcdi_log(struct device *dev, struct device_attribute *attr,
+static ssize_t mcdi_logging_store(struct device *dev,
+				  struct device_attribute *attr,
 				  const char *buf, size_t count)
 {
 	struct efx_nic *efx = dev_get_drvdata(dev);
@@ -1180,7 +1182,7 @@ static ssize_t set_mcdi_log(struct device *dev, struct device_attribute *attr,
 	return count;
 }
 
-static DEVICE_ATTR(mcdi_logging, 0644, show_mcdi_log, set_mcdi_log);
+static DEVICE_ATTR_RW(mcdi_logging);
 
 void efx_init_mcdi_logging(struct efx_nic *efx)
 {