This is a note to let you know that I've just added the patch titled
usb: r8a66597-hcd: decrease timeout
to the 4.11-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:
usb-r8a66597-hcd-decrease-timeout.patch
and it can be found in the queue-4.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From dd14a3e9b92ac6f0918054f9e3477438760a4fa6 Mon Sep 17 00:00:00 2001
From: Chris Brandt <chris.brandt@xxxxxxxxxxx>
Date: Thu, 27 Apr 2017 12:12:49 -0700
Subject: usb: r8a66597-hcd: decrease timeout
From: Chris Brandt <chris.brandt@xxxxxxxxxxx>
commit dd14a3e9b92ac6f0918054f9e3477438760a4fa6 upstream.
The timeout for BULK packets was 300ms which is a long time if other
endpoints or devices are waiting for their turn. Changing it to 50ms
greatly increased the overall performance for multi-endpoint devices.
Fixes: 5d3043586db4 ("usb: r8a66597-hcd: host controller driver for R8A6659")
Signed-off-by: Chris Brandt <chris.brandt@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/host/r8a66597-hcd.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/usb/host/r8a66597-hcd.c
+++ b/drivers/usb/host/r8a66597-hcd.c
@@ -1269,7 +1269,7 @@ static void set_td_timer(struct r8a66597
time = 30;
break;
default:
- time = 300;
+ time = 50;
break;
}
Patches currently in stable-queue which might be from chris.brandt@xxxxxxxxxxx are
queue-4.11/usb-r8a66597-hcd-decrease-timeout.patch
queue-4.11/usb-r8a66597-hcd-select-a-different-endpoint-on-timeout.patch