[PATCH 50/50] use dev_hw_addr_random() instead of random_ether_addr()

From: Danny Kukawka
Date: Wed Feb 08 2012 - 16:32:40 EST


Use dev_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.

Signed-off-by: Danny Kukawka <danny.kukawka@xxxxxxxxx>
---
drivers/net/ethernet/cisco/enic/enic_main.c | 13 +++++++++++--
1 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/cisco/enic/enic_main.c b/drivers/net/ethernet/cisco/enic/enic_main.c
index ab3f67f..3e7cb54 100644
--- a/drivers/net/ethernet/cisco/enic/enic_main.c
+++ b/drivers/net/ethernet/cisco/enic/enic_main.c
@@ -865,6 +865,8 @@ static int enic_set_mac_addr(struct net_device *netdev, char *addr)
}

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

return 0;
}
@@ -1119,7 +1121,7 @@ static int enic_set_vf_port(struct net_device *netdev, int vf,
memcpy(pp->mac_addr, prev_pp.vf_mac, ETH_ALEN);

if (vf == PORT_SELF_VF && is_zero_ether_addr(netdev->dev_addr))
- random_ether_addr(netdev->dev_addr);
+ dev_hw_addr_random(netdev, netdev->dev_addr);

err = enic_process_set_pp_request(enic, vf, &prev_pp, &restore_pp);
if (err) {
@@ -2272,6 +2274,7 @@ static int __devinit enic_probe(struct pci_dev *pdev,
int err;
#ifdef CONFIG_PCI_IOV
int pos = 0;
+ bool random_mac = false;
#endif
int num_pps = 1;

@@ -2467,11 +2470,17 @@ static int __devinit enic_probe(struct pci_dev *pdev,
(void)enic_change_mtu(netdev, enic->port_mtu);

#ifdef CONFIG_PCI_IOV
- if (enic_is_sriov_vf(enic) && is_zero_ether_addr(enic->mac_addr))
+ if (enic_is_sriov_vf(enic) && is_zero_ether_addr(enic->mac_addr)) {
random_ether_addr(enic->mac_addr);
+ random_mac = true;
+ }
#endif

err = enic_set_mac_addr(netdev, enic->mac_addr);
+#ifdef CONFIG_PCI_IOV
+ if (random_mac)
+ netdev->addr_assign_type |= NET_ADDR_RANDOM;
+#endif
if (err) {
dev_err(dev, "Invalid MAC address, aborting\n");
goto err_out_dev_deinit;
--
1.7.7.3

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