| Message ID | 20240516230151.1031190-3-opendmb@gmail.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Delegated to: | Netdev Maintainers |
| Headers | show |
| Series | net: bcmgenet: protect contended accesses | expand |
| Context | Check | Description |
|---|---|---|
| netdev/tree_selection | success | Guessing tree name failed - patch did not apply |
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index bf52bd643846..e34df8da65e7 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -2874,7 +2874,9 @@ static void bcmgenet_netif_start(struct net_device *dev) 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);
[ Upstream commit 2dbe5f19368caae63b1f59f5bc2af78c7d522b3a ] 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@vger.kernel.org Signed-off-by: Doug Berger <opendmb@gmail.com> Acked-by: Florian Fainelli <florian.fainelli@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net> --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 2 ++ 1 file changed, 2 insertions(+)