Re: [PATCHv2 1/3] vb2: replace bool by bitfield in vb2_buffer

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Hi,

On Mon, 2019-02-04 at 11:11 +0100, hverkuil-cisco@xxxxxxxxx wrote:
> From: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>
> 
> The bool type is not recommended for use in structs, so replace these
> by bitfields.
> 
> Signed-off-by: Hans Verkuil <hverkuil-cisco@xxxxxxxxx>

Reviewed-by: Paul Kocialkowski <paul.kocialkowski@xxxxxxxxxxx>

Cheers,

Paul

> ---
>  drivers/media/common/videobuf2/videobuf2-core.c | 12 ++++++------
>  include/media/videobuf2-core.h                  |  4 ++--
>  2 files changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/drivers/media/common/videobuf2/videobuf2-core.c b/drivers/media/common/videobuf2/videobuf2-core.c
> index e07b6bdb6982..35cf36686e20 100644
> --- a/drivers/media/common/videobuf2/videobuf2-core.c
> +++ b/drivers/media/common/videobuf2/videobuf2-core.c
> @@ -934,7 +934,7 @@ void vb2_buffer_done(struct vb2_buffer *vb, enum vb2_buffer_state state)
>  		/* sync buffers */
>  		for (plane = 0; plane < vb->num_planes; ++plane)
>  			call_void_memop(vb, finish, vb->planes[plane].mem_priv);
> -		vb->synced = false;
> +		vb->synced = 0;
>  	}
>  
>  	spin_lock_irqsave(&q->done_lock, flags);
> @@ -1313,8 +1313,8 @@ static int __buf_prepare(struct vb2_buffer *vb)
>  	for (plane = 0; plane < vb->num_planes; ++plane)
>  		call_void_memop(vb, prepare, vb->planes[plane].mem_priv);
>  
> -	vb->synced = true;
> -	vb->prepared = true;
> +	vb->synced = 1;
> +	vb->prepared = 1;
>  	vb->state = orig_state;
>  
>  	return 0;
> @@ -1803,7 +1803,7 @@ int vb2_core_dqbuf(struct vb2_queue *q, unsigned int *pindex, void *pb,
>  	}
>  
>  	call_void_vb_qop(vb, buf_finish, vb);
> -	vb->prepared = false;
> +	vb->prepared = 0;
>  
>  	if (pindex)
>  		*pindex = vb->index;
> @@ -1927,12 +1927,12 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
>  			for (plane = 0; plane < vb->num_planes; ++plane)
>  				call_void_memop(vb, finish,
>  						vb->planes[plane].mem_priv);
> -			vb->synced = false;
> +			vb->synced = 0;
>  		}
>  
>  		if (vb->prepared) {
>  			call_void_vb_qop(vb, buf_finish, vb);
> -			vb->prepared = false;
> +			vb->prepared = 0;
>  		}
>  		__vb2_dqbuf(vb);
>  
> diff --git a/include/media/videobuf2-core.h b/include/media/videobuf2-core.h
> index 4849b865b908..2757d1902609 100644
> --- a/include/media/videobuf2-core.h
> +++ b/include/media/videobuf2-core.h
> @@ -269,8 +269,8 @@ struct vb2_buffer {
>  	 * vb2_plane:		per-plane information; do not change
>  	 */
>  	enum vb2_buffer_state	state;
> -	bool			synced;
> -	bool			prepared;
> +	unsigned int		synced:1;
> +	unsigned int		prepared:1;
>  
>  	struct vb2_plane	planes[VB2_MAX_PLANES];
>  	struct list_head	queued_entry;
-- 
Paul Kocialkowski, Bootlin
Embedded Linux and kernel engineering
https://bootlin.com




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