Upcasting using a container_of macro is more typesafe, faster and easier for the compiler to optimize.
Signed-off-by: Daniel Vetter daniel.vetter@intel.com Cc: Alexey Brodkin abrodkin@synopsys.com --- drivers/gpu/drm/arc/arcpgu.h | 2 ++ drivers/gpu/drm/arc/arcpgu_crtc.c | 4 ++-- drivers/gpu/drm/arc/arcpgu_drv.c | 4 +--- 3 files changed, 5 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/arc/arcpgu.h b/drivers/gpu/drm/arc/arcpgu.h index cd9e932f501e..87821c91a00c 100644 --- a/drivers/gpu/drm/arc/arcpgu.h +++ b/drivers/gpu/drm/arc/arcpgu.h @@ -17,6 +17,8 @@ struct arcpgu_drm_private { struct drm_plane *plane; };
+#define dev_to_arcpgu(x) container_of(x, struct arcpgu_drm_private, drm) + #define crtc_to_arcpgu_priv(x) container_of(x, struct arcpgu_drm_private, crtc)
static inline void arc_pgu_write(struct arcpgu_drm_private *arcpgu, diff --git a/drivers/gpu/drm/arc/arcpgu_crtc.c b/drivers/gpu/drm/arc/arcpgu_crtc.c index be7c29cec318..ba796a216244 100644 --- a/drivers/gpu/drm/arc/arcpgu_crtc.c +++ b/drivers/gpu/drm/arc/arcpgu_crtc.c @@ -178,7 +178,7 @@ static const struct drm_plane_funcs arc_pgu_plane_funcs = {
static struct drm_plane *arc_pgu_plane_init(struct drm_device *drm) { - struct arcpgu_drm_private *arcpgu = drm->dev_private; + struct arcpgu_drm_private *arcpgu = dev_to_arcpgu(drm); struct drm_plane *plane = NULL; int ret;
@@ -202,7 +202,7 @@ static struct drm_plane *arc_pgu_plane_init(struct drm_device *drm)
int arc_pgu_setup_crtc(struct drm_device *drm) { - struct arcpgu_drm_private *arcpgu = drm->dev_private; + struct arcpgu_drm_private *arcpgu = dev_to_arcpgu(drm); struct drm_plane *primary; int ret;
diff --git a/drivers/gpu/drm/arc/arcpgu_drv.c b/drivers/gpu/drm/arc/arcpgu_drv.c index 68eb4a31c54b..c6a8deb56b0f 100644 --- a/drivers/gpu/drm/arc/arcpgu_drv.c +++ b/drivers/gpu/drm/arc/arcpgu_drv.c @@ -50,8 +50,6 @@ static int arcpgu_load(struct arcpgu_drm_private *arcpgu) struct resource *res; int ret;
- drm->dev_private = arcpgu; - arcpgu->clk = devm_clk_get(drm->dev, "pxlclk"); if (IS_ERR(arcpgu->clk)) return PTR_ERR(arcpgu->clk); @@ -120,7 +118,7 @@ static int arcpgu_show_pxlclock(struct seq_file *m, void *arg) { struct drm_info_node *node = (struct drm_info_node *)m->private; struct drm_device *drm = node->minor->dev; - struct arcpgu_drm_private *arcpgu = drm->dev_private; + struct arcpgu_drm_private *arcpgu = dev_to_arcpgu(drm); unsigned long clkrate = clk_get_rate(arcpgu->clk); unsigned long mode_clock = arcpgu->crtc.mode.crtc_clock * 1000;