[Intel-wired-lan] [PATCH net v1] i40e: Fix setting PF MAC filters when changing MAC address

Mateusz Palczewski mateusz.palczewski at intel.com
Wed Dec 30 14:42:55 UTC 2020


When changing PFs MAC address the old MAC filter was not removed
due to incorrect order of copying MAC from netdev and deleting
the old MAC filter.
Changed how the old MAC filter is removed to remove the proper
filter.

Fixes: 158daed16efb("i40e: fix mac filter delete when setting mac address")
Signed-off-by: Sylwester Dziedziuch <sylwesterx.dziedziuch at intel.com>
Signed-off-by: Mateusz Palczewski <mateusz.palczewski at intel.com>
Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov at intel.com>
Reviewed-by: Przemyslaw Patynowski <przemyslawx.patynowski at intel.com>
---
 drivers/net/ethernet/intel/i40e/i40e_main.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c
index 630258e..de5e0fb 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_main.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_main.c
@@ -1561,6 +1561,7 @@ int i40e_del_mac_filter(struct i40e_vsi *vsi, const u8 *macaddr)
 static int i40e_set_mac(struct net_device *netdev, void *p)
 {
 	struct i40e_netdev_priv *np = netdev_priv(netdev);
+	struct sockaddr addr_tmp = {0};
 	struct i40e_vsi *vsi = np->vsi;
 	struct i40e_pf *pf = vsi->back;
 	struct i40e_hw *hw = &pf->hw;
@@ -1591,8 +1592,11 @@ static int i40e_set_mac(struct net_device *netdev, void *p)
 	 * - Copy new address
 	 * - Add new address to MAC filter
 	 */
+
+	ether_addr_copy(addr_tmp.sa_data, netdev->dev_addr);
+
 	spin_lock_bh(&vsi->mac_filter_hash_lock);
-	i40e_del_mac_filter(vsi, netdev->dev_addr);
+	i40e_del_mac_filter(vsi, addr_tmp.sa_data);
 	ether_addr_copy(netdev->dev_addr, addr->sa_data);
 	i40e_add_mac_filter(vsi, netdev->dev_addr);
 	spin_unlock_bh(&vsi->mac_filter_hash_lock);
-- 
2.17.1

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