Re: [RFC PATCH] media: uvcvideo: handle urb completion in a work queue

2015-09-02 Thread Laurent Pinchart
Hi Mian Yousaf, (CC'ing linux-usb for tips regarding proper handling of URBs in work queues) On Tuesday 01 September 2015 13:49:31 Kaukab, Yousaf wrote: > On Tuesday, September 1, 2015 2:45 PM Laurent Pinchart wrote: > > On Tuesday 01 September 2015 11:45:11 Mian Yousaf Kaukab wrote: > >> urb com

RE: [RFC PATCH] media: uvcvideo: handle urb completion in a work queue

2015-09-01 Thread Kaukab, Yousaf
Hi Laurent, > -Original Message- > From: Laurent Pinchart [mailto:laurent.pinch...@ideasonboard.com] > Sent: Tuesday, September 1, 2015 2:45 PM > To: Kaukab, Yousaf > Cc: linux-media@vger.kernel.org; mche...@osg.samsung.com > Subject: Re: [RFC PATCH] media: uvcvideo: han

Re: [RFC PATCH] media: uvcvideo: handle urb completion in a work queue

2015-09-01 Thread Laurent Pinchart
Hello Mian Yousaf, Thank you for the patch. On Tuesday 01 September 2015 11:45:11 Mian Yousaf Kaukab wrote: > urb completion callback is executed in host controllers interrupt > context. To keep preempt disable time short, add an ordered work- > queue. Associate a work_struct with each urb and qu