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Date: Fri, 9 Nov 2012 14:54:04 -0800
From: "Michael Chan" <mchan@...adcom.com>
To: davem@...emloft.net
cc: netdev@...r.kernel.org, "Michael Chan" <mchan@...adcom.com>
Subject: [PATCH net-next] 8021q: validate SAN MAC address
Some bnx2x multi-function devices are configured for FCoE only in
a PCI function and only has a SAN MAC address. The current code
will fail ->ndo_validate_addr() when a VLAN device is brought up
over such a device.
Check the real device's dev_addrs[] for a valid SAN MAC address
when validating the MAC address if the regular MAC address is not
valid.
Signed-off-by: Michael Chan <mchan@...adcom.com>
---
net/8021q/vlan_dev.c | 25 ++++++++++++++++++++++++-
1 files changed, 24 insertions(+), 1 deletions(-)
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 6da96d4..9ef2d2e 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -346,6 +346,29 @@ static int vlan_dev_stop(struct net_device *dev)
return 0;
}
+static int vlan_dev_validate_addr(struct net_device *dev)
+{
+ if (!is_valid_ether_addr(dev->dev_addr)) {
+ struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
+
+ if (real_dev) {
+ struct netdev_hw_addr *ha;
+
+ rcu_read_lock();
+ for_each_dev_addr(real_dev, ha) {
+ if ((ha->type == NETDEV_HW_ADDR_T_SAN) &&
+ (is_valid_ether_addr(ha->addr))) {
+ rcu_read_unlock();
+ return 0;
+ }
+ }
+ rcu_read_unlock();
+ }
+ return -EADDRNOTAVAIL;
+ }
+ return 0;
+}
+
static int vlan_dev_set_mac_address(struct net_device *dev, void *p)
{
struct net_device *real_dev = vlan_dev_priv(dev)->real_dev;
@@ -734,7 +757,7 @@ static const struct net_device_ops vlan_netdev_ops = {
.ndo_open = vlan_dev_open,
.ndo_stop = vlan_dev_stop,
.ndo_start_xmit = vlan_dev_hard_start_xmit,
- .ndo_validate_addr = eth_validate_addr,
+ .ndo_validate_addr = vlan_dev_validate_addr,
.ndo_set_mac_address = vlan_dev_set_mac_address,
.ndo_set_rx_mode = vlan_dev_set_rx_mode,
.ndo_change_rx_flags = vlan_dev_change_rx_flags,
--
1.7.1
--
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