[PATCH net-next v5 6/6] net: dsa: microchip: fix tag_ksz egress mask for KSZ8795 family

From: vtpieter
Date: Mon Aug 12 2024 - 11:32:29 EST


From: Pieter Van Trappen <pieter.van.trappen@xxxxxxx>

Fix the tag_ksz egress mask for DSA_TAG_PROTO_KSZ8795, the port is
encoded in the two and not three LSB. This fix is for completeness,
for example the bug doesn't manifest itself on the KSZ8794 because bit
2 seems to be always zero.

Signed-off-by: Pieter Van Trappen <pieter.van.trappen@xxxxxxx>
---
net/dsa/tag_ksz.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/dsa/tag_ksz.c b/net/dsa/tag_ksz.c
index ee7b272ab715..15d9f8d28ffc 100644
--- a/net/dsa/tag_ksz.c
+++ b/net/dsa/tag_ksz.c
@@ -141,7 +141,7 @@ static struct sk_buff *ksz8795_rcv(struct sk_buff *skb, struct net_device *dev)
{
u8 *tag = skb_tail_pointer(skb) - KSZ_EGRESS_TAG_LEN;

- return ksz_common_rcv(skb, dev, tag[0] & 7, KSZ_EGRESS_TAG_LEN);
+ return ksz_common_rcv(skb, dev, tag[0] & GENMASK(1, 0), KSZ_EGRESS_TAG_LEN);
}

static const struct dsa_device_ops ksz8795_netdev_ops = {
--
2.43.0