| Message ID | 20240403-uvc_request_length_by_interval-v5-1-2de78794365c@pengutronix.de |
|---|---|
| State | New |
| Headers | show |
| Series | usb: gadget: uvc: effectively fill the udc isoc pipeline with available video buffers and fixes | expand |
diff --git a/drivers/usb/gadget/function/uvc_video.c b/drivers/usb/gadget/function/uvc_video.c index a9edd60fbbf77..48fd8d3c50b0c 100644 --- a/drivers/usb/gadget/function/uvc_video.c +++ b/drivers/usb/gadget/function/uvc_video.c @@ -480,6 +480,10 @@ uvc_video_complete(struct usb_ep *ep, struct usb_request *req) * up later. */ list_add_tail(&to_queue->list, &video->req_free); + /* + * There is a new free request - wake up the pump. + */ + queue_work(video->async_wq, &video->pump); } spin_unlock_irqrestore(&video->req_lock, flags);
Since the req_free list will updated if enqueuing one request was not possible it will be added back to the free list. With every available free request in the queue it is a valid case for the pump worker to use it and continue the pending bufferdata into requests for the req_ready list. Fixes: 6acba0345b68 ("usb:gadget:uvc Do not use worker thread to pump isoc usb requests") Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de> --- drivers/usb/gadget/function/uvc_video.c | 4 ++++ 1 file changed, 4 insertions(+)