From e8ff07fb33026c5c1bb5b81293496faba5d68059 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@linux.intel.com>
Date: Fri, 20 May 2022 13:35:19 +0300
Subject: [PATCH] thunderbolt: Use correct function to calculate maximum USB3 link rate
Git-commit: e8ff07fb33026c5c1bb5b81293496faba5d68059
Patch-mainline: v6.2-rc5
References: git-fixes

We need to take minimum of both sides of the USB3 link into consideration,
not just the downstream port. Fix this by calling tb_usb3_max_link_rate()
instead.

Fixes: 0bd680cd900c ("thunderbolt: Add USB3 bandwidth management")
Cc: stable@vger.kernel.org
Acked-by: Yehezkel Bernat <YehezkelShB@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Takashi Iwai <tiwai@suse.de>

---
 drivers/thunderbolt/tunnel.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thunderbolt/tunnel.c b/drivers/thunderbolt/tunnel.c
index 2c3cf7fc3357..1fc3c29b24f8 100644
--- a/drivers/thunderbolt/tunnel.c
+++ b/drivers/thunderbolt/tunnel.c
@@ -1275,7 +1275,7 @@ static void tb_usb3_reclaim_available_bandwidth(struct tb_tunnel *tunnel,
 		return;
 	} else if (!ret) {
 		/* Use maximum link rate if the link valid is not set */
-		ret = usb4_usb3_port_max_link_rate(tunnel->src_port);
+		ret = tb_usb3_max_link_rate(tunnel->dst_port, tunnel->src_port);
 		if (ret < 0) {
 			tb_tunnel_warn(tunnel, "failed to read maximum link rate\n");
 			return;
-- 
2.35.3