This is a note to let you know that I've just added the patch titled
thunderbolt: Use correct function to calculate maximum USB3 link rate
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
thunderbolt-use-correct-function-to-calculate-maximum-usb3-link-rate.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From e8ff07fb33026c5c1bb5b81293496faba5d68059 Mon Sep 17 00:00:00 2001
From: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Date: Fri, 20 May 2022 13:35:19 +0300
Subject: thunderbolt: Use correct function to calculate maximum USB3 link rate
From: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
commit e8ff07fb33026c5c1bb5b81293496faba5d68059 upstream.
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@xxxxxxxxxxxxxxx
Acked-by: Yehezkel Bernat <YehezkelShB@xxxxxxxxx>
Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/thunderbolt/tunnel.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/thunderbolt/tunnel.c
+++ b/drivers/thunderbolt/tunnel.c
@@ -1262,7 +1262,7 @@ static void tb_usb3_reclaim_available_ba
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;
Patches currently in stable-queue which might be from mika.westerberg@xxxxxxxxxxxxxxx are
queue-5.15/thunderbolt-use-correct-function-to-calculate-maximum-usb3-link-rate.patch
