linux-kernel - Re: [PATCH 1/2] drivers core: Export driver_deferred_probe_check

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Date:   Thu, 5 Aug 2021 21:34:25 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     Paul Cercueil <paul@...pouillou.net>
Cc:     Rob Herring <robh@...nel.org>,
        "Rafael J . Wysocki" <rafael@...nel.org>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Sam Ravnborg <sam@...nborg.org>, list@...ndingux.net,
        linux-kernel@...r.kernel.org, linux-mips@...r.kernel.org,
        dri-devel@...ts.freedesktop.org
Subject: Re: [PATCH 1/2] drivers core: Export
 driver_deferred_probe_check_state()

On Thu, Aug 05, 2021 at 09:21:08PM +0200, Paul Cercueil wrote:
> Export this function as a GPL symbol, so that it can be used from
> modules.
> 
> Signed-off-by: Paul Cercueil <paul@...pouillou.net>
> ---
>  drivers/base/dd.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/base/dd.c b/drivers/base/dd.c
> index daeb9b5763ae..658f1527a58b 100644
> --- a/drivers/base/dd.c
> +++ b/drivers/base/dd.c
> @@ -296,6 +296,7 @@ int driver_deferred_probe_check_state(struct device *dev)
>  
>  	return -EPROBE_DEFER;
>  }
> +EXPORT_SYMBOL_GPL(driver_deferred_probe_check_state);

Drivers should never need to mess with this, it is for only a small set
of busses to use only.

Why do you think this is needed by a driver?

thanks,

greg k-h