Re: [PATCH 01/15] drm: Move dma functions into drm_legacy.h

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Hi

On Wed, Sep 10, 2014 at 12:43 PM, Daniel Vetter <daniel.vetter@xxxxxxxx> wrote:
> Also drop the unneeded EXPORT_SYMBOL and sprinkle drm_legacy_ prefixes
> where missing.
>
> Signed-off-by: Daniel Vetter <daniel.vetter@xxxxxxxx>
> ---
>  drivers/gpu/drm/drm_bufs.c   |  2 +-
>  drivers/gpu/drm/drm_dma.c    | 10 ++++------
>  drivers/gpu/drm/drm_fops.c   |  2 +-
>  drivers/gpu/drm/drm_legacy.h |  8 ++++++++
>  include/drm/drmP.h           |  7 -------
>  5 files changed, 14 insertions(+), 15 deletions(-)
>
> diff --git a/drivers/gpu/drm/drm_bufs.c b/drivers/gpu/drm/drm_bufs.c
> index 9e04d6a43fa4..70ba89f66199 100644
> --- a/drivers/gpu/drm/drm_bufs.c
> +++ b/drivers/gpu/drm/drm_bufs.c
> @@ -1338,7 +1338,7 @@ int drm_legacy_freebufs(struct drm_device *dev, void *data,
>                                   task_pid_nr(current));
>                         return -EINVAL;
>                 }
> -               drm_free_buffer(dev, buf);
> +               drm_legacy_free_buffer(dev, buf);
>         }
>
>         return 0;
> diff --git a/drivers/gpu/drm/drm_dma.c b/drivers/gpu/drm/drm_dma.c
> index 8a140a953754..9360c3915fe9 100644
> --- a/drivers/gpu/drm/drm_dma.c
> +++ b/drivers/gpu/drm/drm_dma.c
> @@ -124,7 +124,7 @@ void drm_legacy_dma_takedown(struct drm_device *dev)
>   *
>   * Resets the fields of \p buf.
>   */
> -void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf)
> +void drm_legacy_free_buffer(struct drm_device *dev, struct drm_buf * buf)
>  {
>         if (!buf)
>                 return;
> @@ -142,8 +142,8 @@ void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf)
>   *
>   * Frees each buffer associated with \p file_priv not already on the hardware.
>   */
> -void drm_core_reclaim_buffers(struct drm_device *dev,
> -                             struct drm_file *file_priv)
> +void drm_legacy_core_reclaim_buffers(struct drm_device *dev,
> +                                    struct drm_file *file_priv)
>  {
>         struct drm_device_dma *dma = dev->dma;
>         int i;
> @@ -154,7 +154,7 @@ void drm_core_reclaim_buffers(struct drm_device *dev,
>                 if (dma->buflist[i]->file_priv == file_priv) {
>                         switch (dma->buflist[i]->list) {
>                         case DRM_LIST_NONE:
> -                               drm_free_buffer(dev, dma->buflist[i]);
> +                               drm_legacy_free_buffer(dev, dma->buflist[i]);
>                                 break;
>                         case DRM_LIST_WAIT:
>                                 dma->buflist[i]->list = DRM_LIST_RECLAIM;
> @@ -166,5 +166,3 @@ void drm_core_reclaim_buffers(struct drm_device *dev,
>                 }
>         }
>  }
> -
> -EXPORT_SYMBOL(drm_core_reclaim_buffers);
> diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
> index b419990042b0..6a8c9379bd42 100644
> --- a/drivers/gpu/drm/drm_fops.c
> +++ b/drivers/gpu/drm/drm_fops.c
> @@ -404,7 +404,7 @@ int drm_release(struct inode *inode, struct file *filp)
>                 drm_master_release(dev, filp);
>
>         if (drm_core_check_feature(dev, DRIVER_HAVE_DMA))
> -               drm_core_reclaim_buffers(dev, file_priv);
> +               drm_legacy_core_reclaim_buffers(dev, file_priv);
>
>         drm_events_release(file_priv);
>
> diff --git a/drivers/gpu/drm/drm_legacy.h b/drivers/gpu/drm/drm_legacy.h
> index 3049af5a01b3..36755ac4f244 100644
> --- a/drivers/gpu/drm/drm_legacy.h
> +++ b/drivers/gpu/drm/drm_legacy.h
> @@ -92,4 +92,12 @@ int drm_legacy_lock(struct drm_device *d, void *v, struct drm_file *f);
>  int drm_legacy_unlock(struct drm_device *d, void *v, struct drm_file *f);
>  int drm_legacy_lock_free(struct drm_lock_data *lock, unsigned int ctx);
>
> +/* DMA support */
> +extern int drm_legacy_dma_setup(struct drm_device *dev);
> +extern void drm_legacy_dma_takedown(struct drm_device *dev);
> +extern void drm_legacy_free_buffer(struct drm_device *dev,
> +                                  struct drm_buf * buf);
> +extern void drm_legacy_core_reclaim_buffers(struct drm_device *dev,
> +                                           struct drm_file *filp);
> +

"_core_"  in the name doesn't really make much sense, but as long as
it has "legacy", too, I guess nobody cares.

You might wanna drop all the "extern " prefix for functions while
doing the move. It has no affect at all (default for function
declarations). Otherwise, looks good:

Reviewed-by: David Herrmann <dh.herrmann@xxxxxxxxx>

Thanks
David

>  #endif /* __DRM_LEGACY_H__ */
> diff --git a/include/drm/drmP.h b/include/drm/drmP.h
> index c5c9f0e44a7b..574e325d6b69 100644
> --- a/include/drm/drmP.h
> +++ b/include/drm/drmP.h
> @@ -1158,13 +1158,6 @@ void drm_clflush_virt_range(void *addr, unsigned long length);
>   * DMA quiscent + idle. DMA quiescent usually requires the hardware lock.
>   */
>
> -                               /* DMA support (drm_dma.h) */
> -extern int drm_legacy_dma_setup(struct drm_device *dev);
> -extern void drm_legacy_dma_takedown(struct drm_device *dev);
> -extern void drm_free_buffer(struct drm_device *dev, struct drm_buf * buf);
> -extern void drm_core_reclaim_buffers(struct drm_device *dev,
> -                                    struct drm_file *filp);
> -
>                                 /* IRQ support (drm_irq.h) */
>  extern int drm_control(struct drm_device *dev, void *data,
>                        struct drm_file *file_priv);
> --
> 1.9.3
>
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