Re: [RFC RESEND 01/11] vb2: Rename confusingly named internal buffer preparation functions

[Hans Verkuil]

On 09/11/2015 01:50 PM, Sakari Ailus wrote:
> Rename __qbuf_*() functions which are specific to a buffer type as
> __prepare_*() which matches with what they do. The naming was there for
> historical reasons; the purpose of the functions was changed without
> renaming them.
> 
> Signed-off-by: Sakari Ailus <sakari.ai...@linux.intel.com>

Acked-by: Hans Verkuil <hans.verk...@cisco.com>

Good one!

        Hans

> ---
>  drivers/media/v4l2-core/videobuf2-core.c | 19 ++++++++++---------
>  1 file changed, 10 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/media/v4l2-core/videobuf2-core.c 
> b/drivers/media/v4l2-core/videobuf2-core.c
> index b866a6b..af6a23a 100644
> --- a/drivers/media/v4l2-core/videobuf2-core.c
> +++ b/drivers/media/v4l2-core/videobuf2-core.c
> @@ -1391,18 +1391,19 @@ static void __fill_vb2_buffer(struct vb2_buffer *vb, 
> const struct v4l2_buffer *b
>  }
>  
>  /**
> - * __qbuf_mmap() - handle qbuf of an MMAP buffer
> + * __prepare_mmap() - prepare an MMAP buffer
>   */
> -static int __qbuf_mmap(struct vb2_buffer *vb, const struct v4l2_buffer *b)
> +static int __prepare_mmap(struct vb2_buffer *vb, const struct v4l2_buffer *b)
>  {
>       __fill_vb2_buffer(vb, b, vb->v4l2_planes);
>       return call_vb_qop(vb, buf_prepare, vb);
>  }
>  
>  /**
> - * __qbuf_userptr() - handle qbuf of a USERPTR buffer
> + * __prepare_userptr() - prepare a USERPTR buffer
>   */
> -static int __qbuf_userptr(struct vb2_buffer *vb, const struct v4l2_buffer *b)
> +static int __prepare_userptr(struct vb2_buffer *vb,
> +                          const struct v4l2_buffer *b)
>  {
>       struct v4l2_plane planes[VIDEO_MAX_PLANES];
>       struct vb2_queue *q = vb->vb2_queue;
> @@ -1504,9 +1505,9 @@ err:
>  }
>  
>  /**
> - * __qbuf_dmabuf() - handle qbuf of a DMABUF buffer
> + * __prepare_dmabuf() - prepare a DMABUF buffer
>   */
> -static int __qbuf_dmabuf(struct vb2_buffer *vb, const struct v4l2_buffer *b)
> +static int __prepare_dmabuf(struct vb2_buffer *vb, const struct v4l2_buffer 
> *b)
>  {
>       struct v4l2_plane planes[VIDEO_MAX_PLANES];
>       struct vb2_queue *q = vb->vb2_queue;
> @@ -1678,15 +1679,15 @@ static int __buf_prepare(struct vb2_buffer *vb, const 
> struct v4l2_buffer *b)
>  
>       switch (q->memory) {
>       case V4L2_MEMORY_MMAP:
> -             ret = __qbuf_mmap(vb, b);
> +             ret = __prepare_mmap(vb, b);
>               break;
>       case V4L2_MEMORY_USERPTR:
>               down_read(&current->mm->mmap_sem);
> -             ret = __qbuf_userptr(vb, b);
> +             ret = __prepare_userptr(vb, b);
>               up_read(&current->mm->mmap_sem);
>               break;
>       case V4L2_MEMORY_DMABUF:
> -             ret = __qbuf_dmabuf(vb, b);
> +             ret = __prepare_dmabuf(vb, b);
>               break;
>       default:
>               WARN(1, "Invalid queue type\n");
> 

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