From 339133f6c318612f9a4556c300753beda27abc01 Mon Sep 17 00:00:00 2001 From: Linus Walleij Date: Mon, 13 Sep 2021 16:31:56 +0200 Subject: [PATCH] net: dsa: tag_rtl4_a: Drop bit 9 from egress frames This drops the code setting bit 9 on egress frames on the Realtek "type A" (RTL8366RB) frames. This bit was set on ingress frames for unknown reason, and was set on egress frames as the format of ingress and egress frames was believed to be the same. As that assumption turned out to be false, and since this bit seems to have zero effect on the behaviour of the switch let's drop this bit entirely. Signed-off-by: Linus Walleij Reviewed-by: Andrew Lunn Reviewed-by: Florian Fainelli Link: https://lore.kernel.org/r/20210913143156.1264570-1-linus.walleij@linaro.org Signed-off-by: Jakub Kicinski --- net/dsa/tag_rtl4_a.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/net/dsa/tag_rtl4_a.c b/net/dsa/tag_rtl4_a.c index f920487ae145..6d928ee3ef7a 100644 --- a/net/dsa/tag_rtl4_a.c +++ b/net/dsa/tag_rtl4_a.c @@ -54,7 +54,7 @@ static struct sk_buff *rtl4a_tag_xmit(struct sk_buff *skb, p = (__be16 *)tag; *p = htons(RTL4_A_ETHERTYPE); - out = (RTL4_A_PROTOCOL_RTL8366RB << RTL4_A_PROTOCOL_SHIFT) | (2 << 8); + out = (RTL4_A_PROTOCOL_RTL8366RB << RTL4_A_PROTOCOL_SHIFT); /* The lower bits indicate the port number */ out |= BIT(dp->index);