diff mbox series

[5.6,065/167] net: dsa: b53: Lookup VID in ARL searches when VLAN is enabled

Message ID 20200428182233.201072476@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH April 28, 2020, 6:24 p.m. UTC 
From: Florian Fainelli <f.fainelli@gmail.com>

[ Upstream commit 2e97b0cd1651a270f3a3fcf42115c51f3284c049 ]

When VLAN is enabled, and an ARL search is issued, we also need to
compare the full {MAC,VID} tuple before returning a successful search
result.

Fixes: 1da6df85c6fb ("net: dsa: b53: Implement ARL add/del/dump operations")
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/dsa/b53/b53_common.c |    3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

--- a/drivers/net/dsa/b53/b53_common.c
+++ b/drivers/net/dsa/b53/b53_common.c
@@ -1485,6 +1485,9 @@  static int b53_arl_read(struct b53_devic
 			continue;
 		if ((mac_vid & ARLTBL_MAC_MASK) != mac)
 			continue;
+		if (dev->vlan_enabled &&
+		    ((mac_vid >> ARLTBL_VID_S) & ARLTBL_VID_MASK) != vid)
+			continue;
 		*idx = i;
 	}