IB/ipoib: Use DEVICE_ATTR_*() macros

Use DEVICE_ATTR_*() helper instead of plain DEVICE_ATTR, which makes the
code a bit shorter and easier to read.

Link: https://lore.kernel.org/r/20210526132753.3092-1-yuehaibing@huawei.comSigned-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

drivers/infiniband/ulp/ipoib/ipoib_cm.c

@@ -1503,7 +1503,7 @@ static void ipoib_cm_stale_task(struct work_struct *work)
 	spin_unlock_irq(&priv->lock);
 }
 
-static ssize_t show_mode(struct device *d, struct device_attribute *attr,
+static ssize_t mode_show(struct device *d, struct device_attribute *attr,
 			 char *buf)
 {
 	struct net_device *dev = to_net_dev(d);
@@ -1515,7 +1515,7 @@ static ssize_t show_mode(struct device *d, struct device_attribute *attr,
 		return sysfs_emit(buf, "datagram\n");
 }
 
-static ssize_t set_mode(struct device *d, struct device_attribute *attr,
+static ssize_t mode_store(struct device *d, struct device_attribute *attr,
 			  const char *buf, size_t count)
 {
 	struct net_device *dev = to_net_dev(d);
@@ -1542,7 +1542,7 @@ static ssize_t set_mode(struct device *d, struct device_attribute *attr,
 	return (!ret || ret == -EBUSY) ? count : ret;
 }
 
-static DEVICE_ATTR(mode, S_IWUSR | S_IRUGO, show_mode, set_mode);
+static DEVICE_ATTR_RW(mode);
 
 int ipoib_cm_add_mode_attr(struct net_device *dev)
 {

drivers/infiniband/ulp/ipoib/ipoib_main.c

@@ -2268,18 +2268,18 @@ void ipoib_intf_free(struct net_device *dev)
 	kfree(priv);
 }
 
-static ssize_t show_pkey(struct device *dev,
-			 struct device_attribute *attr, char *buf)
+static ssize_t pkey_show(struct device *dev, struct device_attribute *attr,
+			 char *buf)
 {
 	struct net_device *ndev = to_net_dev(dev);
 	struct ipoib_dev_priv *priv = ipoib_priv(ndev);
 
 	return sysfs_emit(buf, "0x%04x\n", priv->pkey);
 }
-static DEVICE_ATTR(pkey, S_IRUGO, show_pkey, NULL);
+static DEVICE_ATTR_RO(pkey);
 
-static ssize_t show_umcast(struct device *dev,
-			   struct device_attribute *attr, char *buf)
+static ssize_t umcast_show(struct device *dev, struct device_attribute *attr,
+			   char *buf)
 {
 	struct net_device *ndev = to_net_dev(dev);
 	struct ipoib_dev_priv *priv = ipoib_priv(ndev);
@@ -2300,8 +2300,7 @@ void ipoib_set_umcast(struct net_device *ndev, int umcast_val)
 		clear_bit(IPOIB_FLAG_UMCAST, &priv->flags);
 }
 
-static ssize_t set_umcast(struct device *dev,
-			  struct device_attribute *attr,
+static ssize_t umcast_store(struct device *dev, struct device_attribute *attr,
 			    const char *buf, size_t count)
 {
 	unsigned long umcast_val = simple_strtoul(buf, NULL, 0);
@@ -2310,7 +2309,7 @@ static ssize_t set_umcast(struct device *dev,
 
 	return count;
 }
-static DEVICE_ATTR(umcast, S_IWUSR | S_IRUGO, show_umcast, set_umcast);
+static DEVICE_ATTR_RW(umcast);
 
 int ipoib_add_umcast_attr(struct net_device *dev)
 {
@@ -2381,7 +2380,7 @@ static int ipoib_set_mac(struct net_device *dev, void *addr)
 	return 0;
 }
 
-static ssize_t create_child(struct device *dev,
+static ssize_t create_child_store(struct device *dev,
 				  struct device_attribute *attr,
 				  const char *buf, size_t count)
 {
@@ -2398,9 +2397,9 @@ static ssize_t create_child(struct device *dev,
 
 	return ret ? ret : count;
 }
-static DEVICE_ATTR(create_child, S_IWUSR, NULL, create_child);
+static DEVICE_ATTR_WO(create_child);
 
-static ssize_t delete_child(struct device *dev,
+static ssize_t delete_child_store(struct device *dev,
 				  struct device_attribute *attr,
 				  const char *buf, size_t count)
 {
@@ -2418,7 +2417,7 @@ static ssize_t delete_child(struct device *dev,
 	return ret ? ret : count;
 
 }
-static DEVICE_ATTR(delete_child, S_IWUSR, NULL, delete_child);
+static DEVICE_ATTR_WO(delete_child);
 
 int ipoib_add_pkey_attr(struct net_device *dev)
 {

drivers/infiniband/ulp/ipoib/ipoib_vlan.c

@@ -40,7 +40,7 @@
 
 #include "ipoib.h"
 
-static ssize_t show_parent(struct device *d, struct device_attribute *attr,
+static ssize_t parent_show(struct device *d, struct device_attribute *attr,
 			   char *buf)
 {
 	struct net_device *dev = to_net_dev(d);
@@ -48,7 +48,7 @@ static ssize_t show_parent(struct device *d, struct device_attribute *attr,
 
 	return sysfs_emit(buf, "%s\n", priv->parent->name);
 }
-static DEVICE_ATTR(parent, S_IRUGO, show_parent, NULL);
+static DEVICE_ATTR_RO(parent);
 
 static bool is_child_unique(struct ipoib_dev_priv *ppriv,
 			    struct ipoib_dev_priv *priv)