linux-kernel - Re: [PATCH v4 2/3] drm/encoder: Add macro drmm_plain_encoder

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Message-ID: <YF+6HY9dQbUBbXXG@pendragon.ideasonboard.com>
Date:   Sun, 28 Mar 2021 01:05:01 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     Andrzej Hajda <a.hajda@...sung.com>,
        Neil Armstrong <narmstrong@...libre.com>,
        Robert Foss <robert.foss@...aro.org>,
        Sam Ravnborg <sam@...nborg.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>, od@...c.me,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        linux-mips@...r.kernel.org
Subject: Re: [PATCH v4 2/3] drm/encoder: Add macro drmm_plain_encoder_alloc()

Hi Paul,

Thank you for the patch.

On Sat, Mar 27, 2021 at 11:57:41AM +0000, Paul Cercueil wrote:
> This performs the same operation as drmm_encoder_alloc(), but
> only allocates and returns a struct drm_encoder instance.
> 
> v4: Rename macro drmm_plain_encoder_alloc() and move to
>     <drm/drm_encoder.h>. Since it's not "simple" anymore it
>     will now take funcs/name arguments as well.
> 
> Signed-off-by: Paul Cercueil <paul@...pouillou.net>

Reviewed-by: Laurent Pinchart <laurent.pinchart@...asonboard.com>

> ---
>  include/drm/drm_encoder.h | 18 ++++++++++++++++++
>  1 file changed, 18 insertions(+)
> 
> diff --git a/include/drm/drm_encoder.h b/include/drm/drm_encoder.h
> index 5bf78b5bcb2b..6e91a0280f31 100644
> --- a/include/drm/drm_encoder.h
> +++ b/include/drm/drm_encoder.h
> @@ -224,6 +224,24 @@ void *__drmm_encoder_alloc(struct drm_device *dev,
>  				      offsetof(type, member), funcs, \
>  				      encoder_type, name, ##__VA_ARGS__))
>  
> +/**
> + * drmm_plain_encoder_alloc - Allocate and initialize an encoder
> + * @dev: drm device
> + * @funcs: callbacks for this encoder (optional)
> + * @encoder_type: user visible type of the encoder
> + * @name: printf style format string for the encoder name, or NULL for default name
> + *
> + * This is a simplified version of drmm_encoder_alloc(), which only allocates
> + * and returns a struct drm_encoder instance, with no subclassing.
> + *
> + * Returns:
> + * Pointer to the new drm_encoder struct, or ERR_PTR on failure.
> + */
> +#define drmm_plain_encoder_alloc(dev, funcs, encoder_type, name, ...) \
> +	((struct drm_encoder *) \
> +	 __drmm_encoder_alloc(dev, sizeof(struct drm_encoder), \
> +			      0, funcs, encoder_type, name, ##__VA_ARGS__))
> +
>  /**
>   * drm_encoder_index - find the index of a registered encoder
>   * @encoder: encoder to find index for

-- 
Regards,

Laurent Pinchart