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Subject[PATCH v2 08/10] ethoc: set addr_assign_type if random_ether_addr() used
Date
Set addr_assign_type correctly to NET_ADDR_RANDOM in case
a random MAC address was generated and assigned to the netdevice.

Fixed ethoc_set_mac_address() to check if the given mac
address is valid and set also dev_addr of the net_device.
Check also the return value of ethoc_set_mac_address() in
ethoc_probe().

Reset the state to NET_ADDR_PERM as soon as the MAC get
changed via .ndo_set_mac_address.

v2: set net_device->dev_addr in ethoc_set_mac_address(),
check if given address is valid

Signed-off-by: Danny Kukawka <danny.kukawka@bisect.de>
---
drivers/net/ethernet/ethoc.c | 20 ++++++++++++++++++--
1 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/ethoc.c b/drivers/net/ethernet/ethoc.c
index 60f0e78..cfc0ce0 100644
--- a/drivers/net/ethernet/ethoc.c
+++ b/drivers/net/ethernet/ethoc.c
@@ -776,10 +776,16 @@ static int ethoc_set_mac_address(struct net_device *dev, void *addr)
struct ethoc *priv = netdev_priv(dev);
u8 *mac = (u8 *)addr;

+ if(!is_valid_ether_addr(mac))
+ return -EADDRNOTAVAIL;
+
ethoc_write(priv, MAC_ADDR0, (mac[2] << 24) | (mac[3] << 16) |
(mac[4] << 8) | (mac[5] << 0));
ethoc_write(priv, MAC_ADDR1, (mac[0] << 8) | (mac[1] << 0));

+ memcpy(dev->dev_addr, mac, ETH_ALEN);
+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;
+
return 0;
}

@@ -909,6 +915,7 @@ static int __devinit ethoc_probe(struct platform_device *pdev)
unsigned int phy;
int num_bd;
int ret = 0;
+ bool random_mac = false;

/* allocate networking device */
netdev = alloc_etherdev(sizeof(struct ethoc));
@@ -1050,10 +1057,19 @@ static int __devinit ethoc_probe(struct platform_device *pdev)

/* Check the MAC again for validity, if it still isn't choose and
* program a random one. */
- if (!is_valid_ether_addr(netdev->dev_addr))
+ if (!is_valid_ether_addr(netdev->dev_addr)) {
random_ether_addr(netdev->dev_addr);
+ random_mac = true;
+ }

- ethoc_set_mac_address(netdev, netdev->dev_addr);
+ ret = ethoc_set_mac_address(netdev, netdev->dev_addr);
+ if (ret) {
+ dev_err(&netdev->dev, "failed to set MAC address\n");
+ goto error;
+ }
+
+ if (random_mac)
+ netdev->addr_assign_type |= NET_ADDR_RANDOM;

/* register MII bus */
priv->mdio = mdiobus_alloc();
--
1.7.8.3


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