This is a note to let you know that I've just added the patch titled
usb: gadget: uvc: fix dropped frame after missed isoc
to the 6.0-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-gadget-uvc-fix-dropped-frame-after-missed-isoc.patch
and it can be found in the queue-6.0 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 8e8e923a49967b798e7d69f1ce9eff1dd2533547 Mon Sep 17 00:00:00 2001
From: Dan Vacura <w36195@xxxxxxxxxxxx>
Date: Tue, 18 Oct 2022 16:50:37 -0500
Subject: usb: gadget: uvc: fix dropped frame after missed isoc
From: Dan Vacura <w36195@xxxxxxxxxxxx>
commit 8e8e923a49967b798e7d69f1ce9eff1dd2533547 upstream.
With the re-use of the previous completion status in 0d1c407b1a749
("usb: dwc3: gadget: Return proper request status") it could be possible
that the next frame would also get dropped if the current frame has a
missed isoc error. Ensure that an interrupt is requested for the start
of a new frame.
Fixes: fc78941d8169 ("usb: gadget: uvc: decrease the interrupt load to a quarter")
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Dan Vacura <w36195@xxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20221018215044.765044-2-w36195@xxxxxxxxxxxx
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/usb/gadget/function/uvc_video.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/usb/gadget/function/uvc_video.c
+++ b/drivers/usb/gadget/function/uvc_video.c
@@ -431,7 +431,8 @@ static void uvcg_video_pump(struct work_
/* Endpoint now owns the request */
req = NULL;
- video->req_int_count++;
+ if (buf->state != UVC_BUF_STATE_DONE)
+ video->req_int_count++;
}
if (!req)
Patches currently in stable-queue which might be from w36195@xxxxxxxxxxxx are
queue-6.0/usb-gadget-uvc-fix-dropped-frame-after-missed-isoc.patch
queue-6.0/usb-dwc3-gadget-stop-processing-more-requests-on-imi.patch
queue-6.0/usb-gadget-uvc-fix-sg-handling-during-video-encode.patch
queue-6.0/usb-gadget-uvc-fix-sg-handling-in-error-case.patch
