From: Florian Fainelli f.fainelli@gmail.com
stable inclusion from stable-v5.10.181 commit e92727ed9e8b6798efc1e7ae44bbe7c44c453670 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I8L4MY CVE: NA backport: OLK-5.10, openEuler-22.03-LTS, openEuler-22.03-LTS-SP1, openEuler-22.03-LTS-SP2
Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=...
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[ Upstream commit 93e0401e0fc0c54b0ac05b687cd135c2ac38187c ]
The call to phy_stop() races with the later call to phy_disconnect(), resulting in concurrent phy_suspend() calls being run from different CPUs. The final call to phy_disconnect() ensures that the PHY is stopped and suspended, too.
Fixes: c96e731c93ff ("net: bcmgenet: connect and disconnect from the PHY state machine") Signed-off-by: Florian Fainelli f.fainelli@gmail.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Dapeng Yu dapeng.yu@windriver.com --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 1 - 1 file changed, 1 deletion(-)
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index 6ee6c34f28f2..52c93701a9e4 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -3408,7 +3408,6 @@ static void bcmgenet_netif_stop(struct net_device *dev) /* Disable MAC transmit. TX DMA disabled must be done before this */ umac_enable_set(priv, CMD_TX_EN, false);
- phy_stop(dev->phydev); bcmgenet_disable_rx_napi(priv); bcmgenet_intr_disable(priv);