linux-kernel - [net v3 PATCH 1/2] net: ethernet: ti: cpsw: fix clean up of vlan mc entries for host port

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Message-ID: <20200824151053.18449-1-m-karicheri2@ti.com>
Date:   Mon, 24 Aug 2020 11:10:52 -0400
From:   Murali Karicheri <m-karicheri2@...com>
To:     <davem@...emloft.net>, <kuba@...nel.org>,
        <grygorii.strashko@...com>, <nsekhar@...com>,
        <linux-omap@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [net v3 PATCH 1/2] net: ethernet: ti: cpsw: fix clean up of vlan mc entries for host port

To flush the vid + mc entries from ALE, which is required when a VLAN
interface is removed, driver needs to call cpsw_ale_flush_multicast()
with ALE_PORT_HOST for port mask as these entries are added only for
host port. Without this, these entries remain in the ALE table even
after removing the VLAN interface. cpsw_ale_flush_multicast() calls
cpsw_ale_flush_mcast which expects a port mask to do the job.

Fixes: 15180eca569b ("net: ethernet: ti: cpsw: fix vlan mcast")
Signed-off-by: Murali Karicheri <m-karicheri2@...com>
---
 v3: added Fixes tag as per comment
 v2: Dropped 3/3 and re-sending as it need more work
 drivers/net/ethernet/ti/cpsw.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index 9b17bbbe102f..4a65edc5a375 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1116,7 +1116,7 @@ static int cpsw_ndo_vlan_rx_kill_vid(struct net_device *ndev,
 				  HOST_PORT_NUM, ALE_VLAN, vid);
 	ret |= cpsw_ale_del_mcast(cpsw->ale, priv->ndev->broadcast,
 				  0, ALE_VLAN, vid);
-	ret |= cpsw_ale_flush_multicast(cpsw->ale, 0, vid);
+	ret |= cpsw_ale_flush_multicast(cpsw->ale, ALE_PORT_HOST, vid);
 err:
 	pm_runtime_put(cpsw->dev);
 	return ret;
-- 
2.17.1