Hi Neil,
On Thu, 19 Dec 2019 11:11:48 +0100
Neil Armstrong <narmstrong@xxxxxxxxxxxx> wrote:
> +/**
> + * drm_atomic_helper_duplicate_bridge_state() - Default duplicate state helper
> + * @bridge: bridge containing the state to duplicate
> + *
> + * Default implementation of &drm_bridge_funcs.atomic_duplicate().
> + *
> + * RETURNS:
> + * a valid state object or NULL if the allocation fails.
> + */
> +struct drm_bridge_state *
> +drm_atomic_helper_bridge_duplicate_state(struct drm_bridge *bridge)
> +{
> + struct drm_bridge_state *new;
> +
> + if (WARN_ON(!bridge->base.state))
> + return NULL;
> +
> + new = kzalloc(sizeof(*new), GFP_KERNEL);
> + if (new)
> + __drm_atomic_helper_bridge_duplicate_state(bridge, new);
> +
> + return new;
> +}
> +EXPORT_SYMBOL(drm_atomic_helper_bridge_duplicate_state);
IIRC, Laurent suggested to make those functions private. I'd also
recommend changing the names to
drm_atomic_*default*_bridge_<action>_state() and dropping the kernel doc
header since making them static means they're no longer helper
functions.
Regards,
Boris
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