Re: [PATCH 08/44] drm/vboxvideo: Stop using drm_device->dev_private

[Sam Ravnborg <sam@ravnborg.org>]

On Fri, Apr 03, 2020 at 03:57:52PM +0200, Daniel Vetter wrote:
> We use the baseclass pattern here, so lets to the proper (and more
> typesafe) upcasting.
> 
> Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
> Cc: Hans de Goede <hdegoede@redhat.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>

As for naming discussed in other mail I had gone for
to_vbox() - as we name the variable assinged vbox whereever we use it.
But no strong feeling as long as we get away from dev_private
and are consistent.

	Sam

> ---
>  drivers/gpu/drm/vboxvideo/vbox_drv.c  |  1 -
>  drivers/gpu/drm/vboxvideo/vbox_drv.h  |  1 +
>  drivers/gpu/drm/vboxvideo/vbox_irq.c  |  2 +-
>  drivers/gpu/drm/vboxvideo/vbox_mode.c | 10 +++++-----
>  4 files changed, 7 insertions(+), 7 deletions(-)
> 
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.c b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> index be0600b22cf5..d34cddd809fd 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.c
> @@ -52,7 +52,6 @@ static int vbox_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
>  		return PTR_ERR(vbox);
>  
>  	vbox->ddev.pdev = pdev;
> -	vbox->ddev.dev_private = vbox;
>  	pci_set_drvdata(pdev, vbox);
>  	mutex_init(&vbox->hw_mutex);
>  
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_drv.h b/drivers/gpu/drm/vboxvideo/vbox_drv.h
> index 87421903816c..ac7c2effc46f 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_drv.h
> +++ b/drivers/gpu/drm/vboxvideo/vbox_drv.h
> @@ -127,6 +127,7 @@ struct vbox_encoder {
>  #define to_vbox_crtc(x) container_of(x, struct vbox_crtc, base)
>  #define to_vbox_connector(x) container_of(x, struct vbox_connector, base)
>  #define to_vbox_encoder(x) container_of(x, struct vbox_encoder, base)
> +#define to_vbox_dev(x) container_of(x, struct vbox_private, ddev)
>  
>  bool vbox_check_supported(u16 id);
>  int vbox_hw_init(struct vbox_private *vbox);
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_irq.c b/drivers/gpu/drm/vboxvideo/vbox_irq.c
> index 16a1e29f5292..631657fa554f 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_irq.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_irq.c
> @@ -34,7 +34,7 @@ void vbox_report_hotplug(struct vbox_private *vbox)
>  irqreturn_t vbox_irq_handler(int irq, void *arg)
>  {
>  	struct drm_device *dev = (struct drm_device *)arg;
> -	struct vbox_private *vbox = (struct vbox_private *)dev->dev_private;
> +	struct vbox_private *vbox = to_vbox_dev(dev);
>  	u32 host_flags = vbox_get_flags(vbox);
>  
>  	if (!(host_flags & HGSMIHOSTFLAGS_IRQ))
> diff --git a/drivers/gpu/drm/vboxvideo/vbox_mode.c b/drivers/gpu/drm/vboxvideo/vbox_mode.c
> index 0883a435e62b..d9a5af62af89 100644
> --- a/drivers/gpu/drm/vboxvideo/vbox_mode.c
> +++ b/drivers/gpu/drm/vboxvideo/vbox_mode.c
> @@ -36,7 +36,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
>  	u16 flags;
>  	s32 x_offset, y_offset;
>  
> -	vbox = crtc->dev->dev_private;
> +	vbox = to_vbox_dev(crtc->dev);
>  	width = vbox_crtc->width ? vbox_crtc->width : 640;
>  	height = vbox_crtc->height ? vbox_crtc->height : 480;
>  	bpp = fb ? fb->format->cpp[0] * 8 : 32;
> @@ -77,7 +77,7 @@ static void vbox_do_modeset(struct drm_crtc *crtc)
>  static int vbox_set_view(struct drm_crtc *crtc)
>  {
>  	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
> -	struct vbox_private *vbox = crtc->dev->dev_private;
> +	struct vbox_private *vbox = to_vbox_dev(crtc->dev);
>  	struct vbva_infoview *p;
>  
>  	/*
> @@ -174,7 +174,7 @@ static void vbox_crtc_set_base_and_mode(struct drm_crtc *crtc,
>  					int x, int y)
>  {
>  	struct drm_gem_vram_object *gbo = drm_gem_vram_of_gem(fb->obj[0]);
> -	struct vbox_private *vbox = crtc->dev->dev_private;
> +	struct vbox_private *vbox = to_vbox_dev(crtc->dev);
>  	struct vbox_crtc *vbox_crtc = to_vbox_crtc(crtc);
>  	bool needs_modeset = drm_atomic_crtc_needs_modeset(crtc->state);
>  
> @@ -272,7 +272,7 @@ static void vbox_primary_atomic_update(struct drm_plane *plane,
>  {
>  	struct drm_crtc *crtc = plane->state->crtc;
>  	struct drm_framebuffer *fb = plane->state->fb;
> -	struct vbox_private *vbox = fb->dev->dev_private;
> +	struct vbox_private *vbox = to_vbox_dev(fb->dev);
>  	struct drm_mode_rect *clips;
>  	uint32_t num_clips, i;
>  
> @@ -704,7 +704,7 @@ static int vbox_get_modes(struct drm_connector *connector)
>  	int preferred_width, preferred_height;
>  
>  	vbox_connector = to_vbox_connector(connector);
> -	vbox = connector->dev->dev_private;
> +	vbox = to_vbox_dev(connector->dev);
>  
>  	hgsmi_report_flags_location(vbox->guest_pool, GUEST_HEAP_OFFSET(vbox) +
>  				    HOST_FLAGS_OFFSET);
> -- 
> 2.25.1
> 
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