[PATCH v7 34/36] drm/sun4i: hdmi: Switch to container_of_const

Maxime Ripard
2024-02-22T18:40:13Z

container_of_const() allows to preserve the pointer constness and is
thus more flexible than inline functions.

Let's switch all our instances of container_of() to container_of_const().

Reviewed-by: Sui Jingfeng <sui.jingfeng@linux.dev>
Signed-off-by: Maxime Ripard <mripard@kernel.org>
---
drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c | 16 ++++------------
1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
index bae69d696765..c276d984da6b 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c
@@ -30,19 +30,11 @@
#include "sun4i_drv.h"
#include "sun4i_hdmi.h"

-static inline struct sun4i_hdmi *
-drm_encoder_to_sun4i_hdmi(struct drm_encoder *encoder)
-{
- return container_of(encoder, struct sun4i_hdmi,
- encoder);
-}
+#define drm_encoder_to_sun4i_hdmi(e) \
+ container_of_const(e, struct sun4i_hdmi, encoder)

-static inline struct sun4i_hdmi *
-drm_connector_to_sun4i_hdmi(struct drm_connector *connector)
-{
- return container_of(connector, struct sun4i_hdmi,
- connector);
-}
+#define drm_connector_to_sun4i_hdmi(c) \
+ container_of_const(c, struct sun4i_hdmi, connector)

static int sun4i_hdmi_setup_avi_infoframes(struct sun4i_hdmi *hdmi,
struct drm_display_mode *mode)

--
2.43.2