Re: [PATCH v4 1/2] media: uvcvideo: Refactor streamon/streamoff

From: Sergey Senozhatsky
Date: Mon Dec 05 2022 - 21:13:09 EST


On (22/12/02 18:19), Ricardo Ribalda wrote:
> @@ -840,13 +840,19 @@ static int uvc_ioctl_streamon(struct file *file, void *fh,
[..]
> + handle->is_streaming = !ret;


> @@ -857,15 +863,22 @@ static int uvc_ioctl_streamoff(struct file *file, void *fh,
[..]
> + handle->is_streaming = !!ret;

Had uvc_ioctl_streamABC() be 3 functions we would have seen

handle->is_streaming = !!!ret;

:)


[..]

A nit:

> struct uvc_fh {
> struct v4l2_fh vfh;
> + bool is_streaming;

That's a lot of padding.

> struct uvc_video_chain *chain;
> struct uvc_streaming *stream;
> enum uvc_handle_state state;

I guess is_streaming better be next to enum uvc_handle_state, in which
case is_streaming should not change sizeof(uvc_fh) (at least so on
64-bit).