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ixgbevf: fix error code path when setting MAC address 

Return error when a MAC address change is rejected by the PF.

This will prevent the user from modifying the MAC address when
that operation is not permitted.

Signed-off-by: Emil Tantilov <emil.s.tantilov@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Emil Tantilov 2016-02-10 15:16:30 -08:00 committed by Jeff Kirsher
parent 324d086709
commit 32ca686835
2 changed files with 11 additions and 5 deletions
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12
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
View File

@ -3692,19 +3692,23 @@ static int ixgbevf_set_mac(struct net_device *netdev, void *p)
struct ixgbevf_adapter *adapter = netdev_priv(netdev);
struct ixgbe_hw *hw = &adapter->hw;
struct sockaddr *addr = p;
int err;
if (!is_valid_ether_addr(addr->sa_data))
return -EADDRNOTAVAIL;
ether_addr_copy(netdev->dev_addr, addr->sa_data);
ether_addr_copy(hw->mac.addr, addr->sa_data);
spin_lock_bh(&adapter->mbx_lock);
hw->mac.ops.set_rar(hw, 0, hw->mac.addr, 0);
err = hw->mac.ops.set_rar(hw, 0, addr->sa_data, 0);
spin_unlock_bh(&adapter->mbx_lock);
if (err)
return -EPERM;
ether_addr_copy(hw->mac.addr, addr->sa_data);
ether_addr_copy(netdev->dev_addr, addr->sa_data);
return 0;
}

4
drivers/net/ethernet/intel/ixgbevf/vf.c
View File

@ -408,8 +408,10 @@ static s32 ixgbevf_set_rar_vf(struct ixgbe_hw *hw, u32 index, u8 *addr,
/* if nacked the address was rejected, use "perm_addr" */
if (!ret_val &&
(msgbuf[0] == (IXGBE_VF_SET_MAC_ADDR | IXGBE_VT_MSGTYPE_NACK)))
(msgbuf[0] == (IXGBE_VF_SET_MAC_ADDR | IXGBE_VT_MSGTYPE_NACK))) {
ixgbevf_get_mac_addr_vf(hw, hw->mac.addr);
return IXGBE_ERR_MBX;
}
return ret_val;
}