From f2596ce59b151b4bac31f355ea82bed22b57d502 Mon Sep 17 00:00:00 2001 From: Chukun Pan Date: Fri, 10 Jul 2026 18:00:00 +0800 Subject: [PATCH] net: dsa: yt921x: Fix external port detection The YT921x switch has two MAC ports: 8 and 9. Currently, the driver only allows port 8 as an external port, while port 9 is not working: yt921x mdio-bus:1d: Wrong mode 23 on port 9 yt921x mdio-bus:1d: Failed to config port 9: -22 Update the external port detection logic to enable the external PHY connected to port 9. Cc: stable+noautosel@kernel.org # never worked Signed-off-by: Chukun Pan Link: https://patch.msgid.link/20260710100000.3018614-1-amadeus@jmu.edu.cn Signed-off-by: Jakub Kicinski --- drivers/net/dsa/yt921x.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/dsa/yt921x.h b/drivers/net/dsa/yt921x.h index 555046526669..5f3b99e189c4 100644 --- a/drivers/net/dsa/yt921x.h +++ b/drivers/net/dsa/yt921x.h @@ -854,7 +854,7 @@ enum yt921x_fdb_entry_status { #define YT921X_PORT_NUM 11 #define yt921x_port_is_internal(port) ((port) < 8) -#define yt921x_port_is_external(port) (8 <= (port) && (port) < 9) +#define yt921x_port_is_external(port) ((port) == 8 || (port) == 9) struct yt921x_mib { u64 rx_broadcast;