linux-kernel - Re: [PATCH] of: add EXPORT_SYMBOL for of_device_compatible

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Date:   Fri, 17 Feb 2017 09:20:09 +0100
From:   Corentin Labbe <clabbe.montjoie@...il.com>
To:     Frank Rowand <frowand.list@...il.com>
Cc:     robh+dt@...nel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] of: add EXPORT_SYMBOL for of_device_compatible_match

On Wed, Feb 15, 2017 at 07:34:57AM -0800, Frank Rowand wrote:
> On 02/15/17 06:22, Corentin Labbe wrote:
> > This symbol will be needed for the dwmac-sun8i ethernet driver.
> > For letting it to be build as module, of_device_compatible_match need to
> > be exported.
> > 
> > Signed-off-by: Corentin Labbe <clabbe.montjoie@...il.com>
> > ---
> >  drivers/of/base.c | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/drivers/of/base.c b/drivers/of/base.c
> > index df6f6e3..fba351b 100644
> > --- a/drivers/of/base.c
> > +++ b/drivers/of/base.c
> > @@ -524,6 +524,7 @@ int of_device_compatible_match(struct device_node *device,
> >  
> >  	return score;
> >  }
> > +EXPORT_SYMBOL(of_device_compatible_match);
> >  
> >  /**
> >   * of_machine_is_compatible - Test root of device tree for a given compatible value
> > 
> 
> 
> 
> Rob's reply to the last person who requested that:
> 
>    It's not missing because no modules use it. It's generally preferred
>    to use a match table and of_match_node.
> 
> -Frank

I replace of_device_compatible_match like you said and it works.
Thanks
Corentin Labbe