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net: dsa: b53: Lookup VID in ARL searches when VLAN is enabled

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[ 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: 1da6df85c6 ("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>
This commit is contained in:
Florian Fainelli 2020-04-20 20:26:51 -07:00 • committed by Greg Kroah-Hartman
commit 2537dc9e2c
1 changed files with 3 additions and 0 deletions
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3
drivers/net/dsa/b53/b53_common.c
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@ -1472,6 +1472,9 @@ static int b53_arl_read(struct b53_device *dev, u64 mac,
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;
}