net: dsa: microchip: ksz8: ksz8_fdb_dump: avoid extracting ghost entry from empty...

[ Upstream commit 492606cdc74804d372ab1bdb8f3ef4a6fb6f9f59 ]

If the dynamic MAC table is empty, we will still extract one outdated
entry. Fix it by using correct bit offset.

Fixes: 4b20a07e103f ("net: dsa: microchip: ksz8795: add support for ksz88xx chips")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Acked-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 9da2b3afce26e4b869c7c9cc485a7043c362e3b1..f8d04a4a303ef12edec1659aa42070185e4ce629 100644 (file)
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -399,7 +399,7 @@ static const u32 ksz8863_masks[] = {
        [STATIC_MAC_TABLE_OVERRIDE]     = BIT(20),
        [STATIC_MAC_TABLE_FWD_PORTS]    = GENMASK(18, 16),
        [DYNAMIC_MAC_TABLE_ENTRIES_H]   = GENMASK(1, 0),
-       [DYNAMIC_MAC_TABLE_MAC_EMPTY]   = BIT(7),
+       [DYNAMIC_MAC_TABLE_MAC_EMPTY]   = BIT(2),
        [DYNAMIC_MAC_TABLE_NOT_READY]   = BIT(7),
        [DYNAMIC_MAC_TABLE_ENTRIES]     = GENMASK(31, 24),
        [DYNAMIC_MAC_TABLE_FID]         = GENMASK(19, 16),