[PATCH v2 2/2] net: use eth_hw_addr_random() and reset addr_assign_type

From: Danny Kukawka
Date: Wed Feb 15 2012 - 11:46:32 EST

Use eth_hw_addr_random() instead of calling random_ether_addr()
to set addr_assign_type correctly to NET_ADDR_RANDOM.

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

v2: adapt to renamed eth_hw_addr_random()

Signed-off-by: Danny Kukawka <danny.kukawka@xxxxxxxxx>
---
drivers/net/dummy.c | 3 ++-
drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c | 1 +
drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c | 2 +-
drivers/net/ethernet/calxeda/xgmac.c | 3 ++-
drivers/net/ethernet/marvell/pxa168_eth.c | 3 ++-
drivers/net/ethernet/micrel/ks8842.c | 3 ++-
drivers/net/ethernet/micrel/ks8851.c | 3 ++-
drivers/net/ethernet/micrel/ks8851_mll.c | 1 +
drivers/net/ethernet/microchip/enc28j60.c | 3 ++-
drivers/net/ethernet/nvidia/forcedeth.c | 3 ++-
drivers/net/ethernet/smsc/smsc911x.c | 3 ++-
drivers/net/ethernet/tile/tilepro.c | 3 ++-
drivers/net/macvlan.c | 3 ++-
drivers/net/team/team.c | 3 ++-
net/bridge/br_device.c | 3 ++-
net/openvswitch/vport-internal_dev.c | 3 ++-
16 files changed, 29 insertions(+), 14 deletions(-)

diff --git a/drivers/net/dummy.c b/drivers/net/dummy.c
index 087648e..d5c6d92 100644
--- a/drivers/net/dummy.c
+++ b/drivers/net/dummy.c
@@ -47,6 +47,7 @@ static int dummy_set_address(struct net_device *dev, void *p)
if (!is_valid_ether_addr(sa->sa_data))
return -EADDRNOTAVAIL;

+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;
memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN);
return 0;
}
@@ -135,7 +136,7 @@ static void dummy_setup(struct net_device *dev)
dev->flags &= ~IFF_MULTICAST;
dev->features |= NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_TSO;
dev->features |= NETIF_F_HW_CSUM | NETIF_F_HIGHDMA | NETIF_F_LLTX;
- random_ether_addr(dev->dev_addr);
+ eth_hw_addr_random(dev);
}

static int dummy_validate(struct nlattr *tb[], struct nlattr *data[])
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
index 03f3935..b304f5d 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
@@ -3008,6 +3008,7 @@ int bnx2x_change_mac_addr(struct net_device *dev, void *p)
return rc;
}

+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);

if (netif_running(dev))
diff --git a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
index 1e3f978..46edeea 100644
--- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
+++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c
@@ -9605,7 +9605,7 @@ static void __devinit bnx2x_get_mac_hwinfo(struct bnx2x *bp)

if (BP_NOMCP(bp)) {
BNX2X_ERROR("warning: random MAC workaround active\n");
- random_ether_addr(bp->dev->dev_addr);
+ eth_hw_addr_random(bp->dev);
} else if (IS_MF(bp)) {
val2 = MF_CFG_RD(bp, func_mf_config[func].mac_upper);
val = MF_CFG_RD(bp, func_mf_config[func].mac_lower);
diff --git a/drivers/net/ethernet/calxeda/xgmac.c b/drivers/net/ethernet/calxeda/xgmac.c
index 1fce186..11f667f 100644
--- a/drivers/net/ethernet/calxeda/xgmac.c
+++ b/drivers/net/ethernet/calxeda/xgmac.c
@@ -1012,7 +1012,7 @@ static int xgmac_open(struct net_device *dev)
* address using the following linux command:
* ifconfig eth0 hw ether xx:xx:xx:xx:xx:xx */
if (!is_valid_ether_addr(dev->dev_addr)) {
- random_ether_addr(dev->dev_addr);
+ eth_hw_addr_random(dev);
netdev_dbg(priv->dev, "generated random MAC address %pM\n",
dev->dev_addr);
}
@@ -1482,6 +1482,7 @@ static int xgmac_set_mac_address(struct net_device *dev, void *p)
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;

+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);

xgmac_set_mac_addr(ioaddr, dev->dev_addr, 0);
diff --git a/drivers/net/ethernet/marvell/pxa168_eth.c b/drivers/net/ethernet/marvell/pxa168_eth.c
index 953ba58..f90f778 100644
--- a/drivers/net/ethernet/marvell/pxa168_eth.c
+++ b/drivers/net/ethernet/marvell/pxa168_eth.c
@@ -629,6 +629,7 @@ static int pxa168_eth_set_mac_address(struct net_device *dev, void *addr)
if (!is_valid_ether_addr(sa->sa_data))
return -EINVAL;
memcpy(oldMac, dev->dev_addr, ETH_ALEN);
+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;
memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN);
netif_addr_lock_bh(dev);
update_hash_table_mac_address(pep, oldMac, dev->dev_addr);
@@ -1522,7 +1523,7 @@ static int pxa168_eth_probe(struct platform_device *pdev)
INIT_WORK(&pep->tx_timeout_task, pxa168_eth_tx_timeout_task);

printk(KERN_INFO "%s:Using random mac address\n", DRIVER_NAME);
- random_ether_addr(dev->dev_addr);
+ eth_hw_addr_random(dev);

pep->pd = pdev->dev.platform_data;
pep->rx_ring_size = NUM_RX_DESCS;
diff --git a/drivers/net/ethernet/micrel/ks8842.c b/drivers/net/ethernet/micrel/ks8842.c
index 0a85690..0686b93 100644
--- a/drivers/net/ethernet/micrel/ks8842.c
+++ b/drivers/net/ethernet/micrel/ks8842.c
@@ -1080,6 +1080,7 @@ static int ks8842_set_mac(struct net_device *netdev, void *p)
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;

+ netdev->addr_assign_type &= ~NET_ADDR_RANDOM;
memcpy(netdev->dev_addr, mac, netdev->addr_len);

ks8842_write_mac_addr(adapter, mac);
@@ -1211,7 +1212,7 @@ static int __devinit ks8842_probe(struct platform_device *pdev)
ks8842_read_mac_addr(adapter, netdev->dev_addr);

if (!is_valid_ether_addr(netdev->dev_addr))
- random_ether_addr(netdev->dev_addr);
+ eth_hw_addr_random(netdev);
}

id = ks8842_read16(adapter, 32, REG_SW_ID_AND_ENABLE);
diff --git a/drivers/net/ethernet/micrel/ks8851.c b/drivers/net/ethernet/micrel/ks8851.c
index 6b35e7d..ce43dd7 100644
--- a/drivers/net/ethernet/micrel/ks8851.c
+++ b/drivers/net/ethernet/micrel/ks8851.c
@@ -439,7 +439,7 @@ static void ks8851_init_mac(struct ks8851_net *ks)
dev->dev_addr);
}

- random_ether_addr(dev->dev_addr);
+ eth_hw_addr_random(dev);
ks8851_write_mac_addr(dev);
}

@@ -1050,6 +1050,7 @@ static int ks8851_set_mac_address(struct net_device *dev, void *addr)
if (!is_valid_ether_addr(sa->sa_data))
return -EADDRNOTAVAIL;

+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;
memcpy(dev->dev_addr, sa->sa_data, ETH_ALEN);
return ks8851_write_mac_addr(dev);
}
diff --git a/drivers/net/ethernet/micrel/ks8851_mll.c b/drivers/net/ethernet/micrel/ks8851_mll.c
index e58e78e..74a0dd9 100644
--- a/drivers/net/ethernet/micrel/ks8851_mll.c
+++ b/drivers/net/ethernet/micrel/ks8851_mll.c
@@ -1241,6 +1241,7 @@ static int ks_set_mac_address(struct net_device *netdev, void *paddr)
struct sockaddr *addr = paddr;
u8 *da;

+ netdev->addr_assign_type &= ~NET_ADDR_RANDOM;
memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);

da = (u8 *)netdev->dev_addr;
diff --git a/drivers/net/ethernet/microchip/enc28j60.c b/drivers/net/ethernet/microchip/enc28j60.c
index 50055e0..40c18fe 100644
--- a/drivers/net/ethernet/microchip/enc28j60.c
+++ b/drivers/net/ethernet/microchip/enc28j60.c
@@ -527,6 +527,7 @@ static int enc28j60_set_mac_address(struct net_device *dev, void *addr)
if (!is_valid_ether_addr(address->sa_data))
return -EADDRNOTAVAIL;

+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;
memcpy(dev->dev_addr, address->sa_data, dev->addr_len);
return enc28j60_set_hw_macaddr(dev);
}
@@ -1579,7 +1580,7 @@ static int __devinit enc28j60_probe(struct spi_device *spi)
ret = -EIO;
goto error_irq;
}
- random_ether_addr(dev->dev_addr);
+ eth_hw_addr_random(dev);
enc28j60_set_hw_macaddr(dev);

/* Board setup must set the relevant edge trigger type;
diff --git a/drivers/net/ethernet/nvidia/forcedeth.c b/drivers/net/ethernet/nvidia/forcedeth.c
index 4c4e7f4..ebb5f05 100644
--- a/drivers/net/ethernet/nvidia/forcedeth.c
+++ b/drivers/net/ethernet/nvidia/forcedeth.c
@@ -3022,6 +3022,7 @@ static int nv_set_mac_address(struct net_device *dev, void *addr)

/* synchronized against open : rtnl_lock() held by caller */
memcpy(dev->dev_addr, macaddr->sa_data, ETH_ALEN);
+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;

if (netif_running(dev)) {
netif_tx_lock_bh(dev);
@@ -5741,7 +5742,7 @@ static int __devinit nv_probe(struct pci_dev *pci_dev, const struct pci_device_i
dev_err(&pci_dev->dev,
"Invalid MAC address detected: %pM - Please complain to your hardware vendor.\n",
dev->dev_addr);
- random_ether_addr(dev->dev_addr);
+ eth_hw_addr_random(dev);
dev_err(&pci_dev->dev,
"Using random MAC address: %pM\n", dev->dev_addr);
}
diff --git a/drivers/net/ethernet/smsc/smsc911x.c b/drivers/net/ethernet/smsc/smsc911x.c
index 24d2df0..5a684ba 100644
--- a/drivers/net/ethernet/smsc/smsc911x.c
+++ b/drivers/net/ethernet/smsc/smsc911x.c
@@ -1833,6 +1833,7 @@ static int smsc911x_set_mac_address(struct net_device *dev, void *p)
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;

+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;
memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);

spin_lock_irq(&pdata->mac_lock);
@@ -2486,7 +2487,7 @@ static int __devinit smsc911x_drv_probe(struct platform_device *pdev)
"Mac Address is read from LAN911x EEPROM");
} else {
/* eeprom values are invalid, generate random MAC */
- random_ether_addr(dev->dev_addr);
+ eth_hw_addr_random(dev);
smsc911x_set_hw_mac_address(pdata, dev->dev_addr);
SMSC_TRACE(pdata, probe,
"MAC Address is set to random_ether_addr");
diff --git a/drivers/net/ethernet/tile/tilepro.c b/drivers/net/ethernet/tile/tilepro.c
index d9951af..b446b9a 100644
--- a/drivers/net/ethernet/tile/tilepro.c
+++ b/drivers/net/ethernet/tile/tilepro.c
@@ -2190,6 +2190,7 @@ static int tile_net_set_mac_address(struct net_device *dev, void *p)

/* ISSUE: Note that "dev_addr" is now a pointer. */
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;

return 0;
}
@@ -2254,7 +2255,7 @@ static int tile_net_get_mac(struct net_device *dev)
* can't get its MAC address, we are most likely running
* the simulator, so let's generate a random MAC address.
*/
- random_ether_addr(dev->dev_addr);
+ eth_hw_addr_random(dev);
}

return 0;
diff --git a/drivers/net/macvlan.c b/drivers/net/macvlan.c
index 9ea9921..f975afd 100644
--- a/drivers/net/macvlan.c
+++ b/drivers/net/macvlan.c
@@ -372,6 +372,7 @@ static int macvlan_set_mac_address(struct net_device *dev, void *p)

if (!(dev->flags & IFF_UP)) {
/* Just copy in the new address */
+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;
memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
} else {
/* Rehash and update the device filters */
@@ -687,7 +688,7 @@ int macvlan_common_newlink(struct net *src_net, struct net_device *dev,
return -EINVAL;

if (!tb[IFLA_ADDRESS])
- random_ether_addr(dev->dev_addr);
+ eth_hw_addr_random(dev);

if (!macvlan_port_exists(lowerdev)) {
err = macvlan_port_create(lowerdev);
diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index 6b678f3..8f81805 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -868,6 +868,7 @@ static int team_set_mac_address(struct net_device *dev, void *p)
struct team_port *port;
struct sockaddr *addr = p;

+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;
memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
rcu_read_lock();
list_for_each_entry_rcu(port, &team->port_list, list)
@@ -1087,7 +1088,7 @@ static int team_newlink(struct net *src_net, struct net_device *dev,
int err;

if (tb[IFLA_ADDRESS] == NULL)
- random_ether_addr(dev->dev_addr);
+ eth_hw_addr_random(dev);

err = register_netdevice(dev);
if (err)
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index 71773b0..a157bf8 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -171,6 +171,7 @@ static int br_set_mac_address(struct net_device *dev, void *p)

spin_lock_bh(&br->lock);
if (compare_ether_addr(dev->dev_addr, addr->sa_data)) {
+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;
memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
br_fdb_change_mac_address(br, addr->sa_data);
br_stp_change_bridge_id(br, addr->sa_data);
@@ -334,7 +335,7 @@ void br_dev_setup(struct net_device *dev)
{
struct net_bridge *br = netdev_priv(dev);

- random_ether_addr(dev->dev_addr);
+ eth_hw_addr_random(dev);
ether_setup(dev);

dev->netdev_ops = &br_netdev_ops;
diff --git a/net/openvswitch/vport-internal_dev.c b/net/openvswitch/vport-internal_dev.c
index 322b8d2..b6b1d7d 100644
--- a/net/openvswitch/vport-internal_dev.c
+++ b/net/openvswitch/vport-internal_dev.c
@@ -66,6 +66,7 @@ static int internal_dev_mac_addr(struct net_device *dev, void *p)

if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
+ dev->addr_assign_type &= ~NET_ADDR_RANDOM;
memcpy(dev->dev_addr, addr->sa_data, dev->addr_len);
return 0;
}
@@ -145,7 +146,7 @@ static void do_setup(struct net_device *netdev)
netdev->vlan_features = netdev->features;
netdev->features |= NETIF_F_HW_VLAN_TX;
netdev->hw_features = netdev->features & ~NETIF_F_LLTX;
- random_ether_addr(netdev->dev_addr);
+ eth_hw_addr_random(netdev);
}

static struct vport *internal_dev_create(const struct vport_parms *parms)
--
1.7.8.3

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