[NET]: ethtool_perm_addr only has one implementation
All drivers implement ethtool get_perm_addr the same way -- by calling
the generic function. So we can inline the generic function into the
caller and avoid going through the drivers.
Signed-off-by: Matthew Wilcox <matthew@wil.cx>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 2bf565e..2ab0a60 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -95,18 +95,6 @@
return 0;
}
-int ethtool_op_get_perm_addr(struct net_device *dev, struct ethtool_perm_addr *addr, u8 *data)
-{
- unsigned char len = dev->addr_len;
- if ( addr->size < len )
- return -ETOOSMALL;
-
- addr->size = len;
- memcpy(data, dev->perm_addr, len);
- return 0;
-}
-
-
u32 ethtool_op_get_ufo(struct net_device *dev)
{
return (dev->features & NETIF_F_UFO) != 0;
@@ -779,34 +767,20 @@
static int ethtool_get_perm_addr(struct net_device *dev, void __user *useraddr)
{
struct ethtool_perm_addr epaddr;
- u8 *data;
- int ret;
- if (!dev->ethtool_ops->get_perm_addr)
- return -EOPNOTSUPP;
-
- if (copy_from_user(&epaddr,useraddr,sizeof(epaddr)))
+ if (copy_from_user(&epaddr, useraddr, sizeof(epaddr)))
return -EFAULT;
- data = kmalloc(epaddr.size, GFP_USER);
- if (!data)
- return -ENOMEM;
+ if (epaddr.size < dev->addr_len)
+ return -ETOOSMALL;
+ epaddr.size = dev->addr_len;
- ret = dev->ethtool_ops->get_perm_addr(dev,&epaddr,data);
- if (ret)
- return ret;
-
- ret = -EFAULT;
if (copy_to_user(useraddr, &epaddr, sizeof(epaddr)))
- goto out;
+ return -EFAULT;
useraddr += sizeof(epaddr);
- if (copy_to_user(useraddr, data, epaddr.size))
- goto out;
- ret = 0;
-
- out:
- kfree(data);
- return ret;
+ if (copy_to_user(useraddr, dev->perm_addr, epaddr.size))
+ return -EFAULT;
+ return 0;
}
/* The main entry point in this file. Called from net/core/dev.c */
@@ -976,7 +950,6 @@
EXPORT_SYMBOL(dev_ethtool);
EXPORT_SYMBOL(ethtool_op_get_link);
-EXPORT_SYMBOL_GPL(ethtool_op_get_perm_addr);
EXPORT_SYMBOL(ethtool_op_get_sg);
EXPORT_SYMBOL(ethtool_op_get_tso);
EXPORT_SYMBOL(ethtool_op_get_tx_csum);