drm/v3d: Don't set drm_device->dev_private

And switch the helper over to container_of, which is a bunch faster
than chasing a pointer. Plus allows gcc to see through this maze.

Acked-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20200415074034.175360-8-daniel.vetter@ffwll.ch

diff --git a/drivers/gpu/drm/v3d/v3d_drv.c b/drivers/gpu/drm/v3d/v3d_drv.c
index 8d0c0da..ead62a1 100644 (file)
--- a/drivers/gpu/drm/v3d/v3d_drv.c
+++ b/drivers/gpu/drm/v3d/v3d_drv.c
@@ -265,7 +265,6 @@ static int v3d_platform_drm_probe(struct platform_device *pdev)
        }
 
        platform_set_drvdata(pdev, drm);
-       drm->dev_private = v3d;
        drmm_add_final_kfree(drm, v3d);
 
        ret = map_regs(v3d, &v3d->hub_regs, "hub");

diff --git a/drivers/gpu/drm/v3d/v3d_drv.h b/drivers/gpu/drm/v3d/v3d_drv.h
index e0775c8..112d80a 100644 (file)
--- a/drivers/gpu/drm/v3d/v3d_drv.h
+++ b/drivers/gpu/drm/v3d/v3d_drv.h
@@ -121,7 +121,7 @@ struct v3d_dev {
 static inline struct v3d_dev *
 to_v3d_dev(struct drm_device *dev)
 {
-       return (struct v3d_dev *)dev->dev_private;
+       return container_of(dev, struct v3d_dev, drm);
 }
 
 static inline bool