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Commit 52276df0 authored by Kieran Bingham's avatar Kieran Bingham Committed by Mauro Carvalho Chehab
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[media] uvcvideo: Don't record timespec_sub 



The statistics function subtracts two timespecs manually. A helper is
provided by the kernel to do this.

Replace the implementation, using the helper.

Signed-off-by: default avatarKieran Bingham <kieran.bingham@ideasonboard.com>
Signed-off-by: default avatarLaurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@s-opensource.com>
parent 360a3a90

drivers/media/usb/uvc/uvc_video.c

+2 −8
Original line number Original line Diff line number Diff line
@@ -868,14 +868,8 @@ size_t uvc_video_stats_dump(struct uvc_streaming *stream, char *buf, 
	struct timespec ts;

	struct timespec ts;

	size_t count = 0;

	size_t count = 0;





	ts.tv_sec = stream->stats.stream.stop_ts.tv_sec

	ts = timespec_sub(stream->stats.stream.stop_ts,

		  - stream->stats.stream.start_ts.tv_sec;

			  stream->stats.stream.start_ts);

	ts.tv_nsec = stream->stats.stream.stop_ts.tv_nsec

		   - stream->stats.stream.start_ts.tv_nsec;

	if (ts.tv_nsec < 0) {

		ts.tv_sec--;

		ts.tv_nsec += 1000000000;

	}





	/* Compute the SCR.SOF frequency estimate. At the nominal 1kHz SOF

	/* Compute the SCR.SOF frequency estimate. At the nominal 1kHz SOF

	 * frequency this will not overflow before more than 1h.

	 * frequency this will not overflow before more than 1h.