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Fix MAC address access in 3c507, ibmlana, pcnet32 and libertas

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Commit f001fde5ea changed
net_device.dev_addr from a 32-byte array to a pointer.

I found 4 ethernet drivers which rely on sizeof(dev_addr), which are now
only copying 4 bytes of the address information on 32bit systems.

Fix them to use ETH_ALEN.

Signed-off-by: Daniel Drake <dsd@laptop.org>
Reviewed-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Daniel Drake 2009-12-24 08:11:24 +00:00 committed by David S. Miller
parent f74dac0859
commit 1f04493123
4 changed files with 8 additions and 6 deletions
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4
drivers/net/3c507.c
View File

@ -56,6 +56,7 @@ static const char version[] =
#include <linux/errno.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/if_ether.h>
#include <linux/skbuff.h>
#include <linux/slab.h>
#include <linux/init.h>
@ -734,8 +735,7 @@ static void init_82586_mem(struct net_device *dev)
memcpy_toio(lp->base, init_words + 5, sizeof(init_words) - 10);
/* Fill in the station address. */
memcpy_toio(lp->base+SA_OFFSET, dev->dev_addr,
sizeof(dev->dev_addr));
memcpy_toio(lp->base+SA_OFFSET, dev->dev_addr, ETH_ALEN);
/* The Tx-block list is written as needed. We just set up the values. */
lp->tx_cmd_link = IDLELOOP + 4;

3
drivers/net/ibmlana.c
View File

@ -87,6 +87,7 @@ special acknowledgements to:
#include <linux/module.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/if_ether.h>
#include <linux/skbuff.h>
#include <linux/bitops.h>
@ -988,7 +989,7 @@ static int __devinit ibmlana_init_one(struct device *kdev)
/* copy out MAC address */
for (z = 0; z < sizeof(dev->dev_addr); z++)
for (z = 0; z < ETH_ALEN; z++)
dev->dev_addr[z] = inb(dev->base_addr + MACADDRPROM + z);
/* print config */

3
drivers/net/pcnet32.c
View File

@ -45,6 +45,7 @@ static const char *const version =
#include <linux/crc32.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/if_ether.h>
#include <linux/skbuff.h>
#include <linux/spinlock.h>
#include <linux/moduleparam.h>
@ -1765,7 +1766,7 @@ pcnet32_probe1(unsigned long ioaddr, int shared, struct pci_dev *pdev)
/* if the ethernet address is not valid, force to 00:00:00:00:00:00 */
if (!is_valid_ether_addr(dev->perm_addr))
memset(dev->dev_addr, 0, sizeof(dev->dev_addr));
memset(dev->dev_addr, 0, ETH_ALEN);
if (pcnet32_debug & NETIF_MSG_PROBE) {
printk(" %pM", dev->dev_addr);

4
drivers/net/wireless/libertas/mesh.c
View File

@ -2,6 +2,7 @@
#include <linux/delay.h>
#include <linux/etherdevice.h>
#include <linux/netdevice.h>
#include <linux/if_ether.h>
#include <linux/if_arp.h>
#include <linux/kthread.h>
#include <linux/kfifo.h>
@ -351,8 +352,7 @@ int lbs_add_mesh(struct lbs_private *priv)
mesh_dev->netdev_ops = &mesh_netdev_ops;
mesh_dev->ethtool_ops = &lbs_ethtool_ops;
memcpy(mesh_dev->dev_addr, priv->dev->dev_addr,
sizeof(priv->dev->dev_addr));
memcpy(mesh_dev->dev_addr, priv->dev->dev_addr, ETH_ALEN);
SET_NETDEV_DEV(priv->mesh_dev, priv->dev->dev.parent);