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Date:   Wed, 16 Sep 2020 12:08:39 +0200
From:   Matthias Schiffer <>
To:     Woojung Huh <>,
        Microchip Linux Driver Support <>,
        Andrew Lunn <>,
        Vivien Didelot <>,
        Florian Fainelli <>
Cc:     "David S. Miller" <>,
        Jakub Kicinski <>,
        Codrin Ciubotariu <>,,,
        Matthias Schiffer <>
Subject: [PATCH net] net: dsa: microchip: ksz8795: really set the correct number of ports

The KSZ9477 and KSZ8795 use the port_cnt field differently: For the
KSZ9477, it includes the CPU port(s), while for the KSZ8795, it doesn't.

It would be a good cleanup to make the handling of both drivers match,
but as a first step, fix the recently broken assignment of num_ports in
the KSZ8795 driver (which completely broke probing, as the CPU port
index was always failing the num_ports check).

Fixes: af199a1a9cb0 ("net: dsa: microchip: set the correct number of
Signed-off-by: Matthias Schiffer <>
 drivers/net/dsa/microchip/ksz8795.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/dsa/microchip/ksz8795.c b/drivers/net/dsa/microchip/ksz8795.c
index f7d59d7b2cbe..f5779e152377 100644
--- a/drivers/net/dsa/microchip/ksz8795.c
+++ b/drivers/net/dsa/microchip/ksz8795.c
@@ -1260,7 +1260,7 @@ static int ksz8795_switch_init(struct ksz_device *dev)
 	/* set the real number of ports */
-	dev->ds->num_ports = dev->port_cnt;
+	dev->ds->num_ports = dev->port_cnt + 1;
 	return 0;

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