5.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Doug Berger <opendmb@xxxxxxxxx> commit 2dbe5f19368caae63b1f59f5bc2af78c7d522b3a upstream. The ndo_set_rx_mode function is synchronized with the netif_addr_lock spinlock and BHs disabled. Since this function is also invoked directly from the driver the same synchronization should be applied. Fixes: 72f96347628e ("net: bcmgenet: set Rx mode before starting netif") Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Doug Berger <opendmb@xxxxxxxxx> Acked-by: Florian Fainelli <florian.fainelli@xxxxxxxxxxxx> Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 2 ++ 1 file changed, 2 insertions(+) --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -2882,7 +2882,9 @@ static void bcmgenet_netif_start(struct struct bcmgenet_priv *priv = netdev_priv(dev); /* Start the network engine */ + netif_addr_lock_bh(dev); bcmgenet_set_rx_mode(dev); + netif_addr_unlock_bh(dev); bcmgenet_enable_rx_napi(priv); umac_enable_set(priv, CMD_TX_EN | CMD_RX_EN, true);