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

Jernej Škrabec
2024-02-22T19:09:15Z

Dne četrtek, 22. februar 2024 ob 19:14:20 CET je Maxime Ripard napisal(a):
> 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>

Reviewed-by: Jernej Skrabec <jernej.skrabec@gmail.com>

Best regards,
Jernej

> ---
> 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)