[PATCH 36/59] drm/cirrus: Don't use drm_device->dev_private

Daniel Vetter
2020-04-15T07:40:11Z

Upcasting using a container_of macro is more typesafe, faster and
easier for the compiler to optimize.

Acked-by: Eric Anholt <eric@anholt.net>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: "Noralf Trønnes" <noralf@tronnes.org>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Eric Anholt <eric@anholt.net>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: virtualization@lists.linux-foundation.org
---
drivers/gpu/drm/cirrus/cirrus.c | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/cirrus/cirrus.c b/drivers/gpu/drm/cirrus/cirrus.c
index 4b65637147ba..744a8e337e41 100644
--- a/drivers/gpu/drm/cirrus/cirrus.c
+++ b/drivers/gpu/drm/cirrus/cirrus.c
@@ -59,6 +59,8 @@ struct cirrus_device {
void __iomem *mmio;
};

+#define to_cirrus(_dev) container_of(_dev, struct cirrus_device, dev)
+
/* ------------------------------------------------------------------ */
/*
* The meat of this driver. The core passes us a mode and we have to program
@@ -311,7 +313,7 @@ static int cirrus_mode_set(struct cirrus_device *cirrus,
static int cirrus_fb_blit_rect(struct drm_framebuffer *fb,
struct drm_rect *rect)
{
- struct cirrus_device *cirrus = fb->dev->dev_private;
+ struct cirrus_device *cirrus = to_cirrus(fb->dev);
void *vmap;
int idx, ret;

@@ -436,7 +438,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
struct drm_crtc_state *crtc_state,
struct drm_plane_state *plane_state)
{
- struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
+ struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);

cirrus_mode_set(cirrus, &crtc_state->mode, plane_state->fb);
cirrus_fb_blit_fullscreen(plane_state->fb);
@@ -445,7 +447,7 @@ static void cirrus_pipe_enable(struct drm_simple_display_pipe *pipe,
static void cirrus_pipe_update(struct drm_simple_display_pipe *pipe,
struct drm_plane_state *old_state)
{
- struct cirrus_device *cirrus = pipe->crtc.dev->dev_private;
+ struct cirrus_device *cirrus = to_cirrus(pipe->crtc.dev);
struct drm_plane_state *state = pipe->plane.state;
struct drm_crtc *crtc = &pipe->crtc;
struct drm_rect rect;
@@ -573,7 +575,6 @@ static int cirrus_pci_probe(struct pci_dev *pdev,
return PTR_ERR(cirrus);

dev = &cirrus->dev;
- dev->dev_private = cirrus;

cirrus->vram = devm_ioremap(&pdev->dev, pci_resource_start(pdev, 0),
pci_resource_len(pdev, 0));
--
2.25.1

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