linux-kernel - Re: [PATCH] lib: devres: Export devm_ioremap_resource

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Date:   Thu, 23 Jan 2020 19:22:02 +0100
From:   "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>
To:     Daniel Baluta <daniel.baluta@...il.com>
Cc:     "Daniel Baluta (OSS)" <daniel.baluta@....nxp.com>,
        "bgolaszewski@...libre.com" <bgolaszewski@...libre.com>,
        "arnd@...db.de" <arnd@...db.de>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "info@...ux.net" <info@...ux.net>,
        "ztuowen@...il.com" <ztuowen@...il.com>,
        "sergei.shtylyov@...entembedded.com" 
        <sergei.shtylyov@...entembedded.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Daniel Baluta <daniel.baluta@....com>
Subject: Re: [PATCH] lib: devres: Export devm_ioremap_resource_wc

On Thu, Jan 23, 2020 at 08:16:35PM +0200, Daniel Baluta wrote:
> On Thu, Jan 23, 2020 at 7:57 PM gregkh@...uxfoundation.org
> <gregkh@...uxfoundation.org> wrote:
> >
> > On Thu, Jan 23, 2020 at 03:47:21PM +0000, Daniel Baluta (OSS) wrote:
> > > From: Daniel Baluta <daniel.baluta@....com>
> > >
> > > So that modules can also use it.
> > >
> > > Fixes: b873af620e58863b ("lib: devres: provide devm_ioremap_resource_wc()")
> > > Signed-off-by: Daniel Baluta <daniel.baluta@....com>
> > > ---
> > >  lib/devres.c | 1 +
> > >  1 file changed, 1 insertion(+)
> > >
> > > diff --git a/lib/devres.c b/lib/devres.c
> > > index 6ef51f159c54..7fe2bd75dfa3 100644
> > > --- a/lib/devres.c
> > > +++ b/lib/devres.c
> > > @@ -182,6 +182,7 @@ void __iomem *devm_ioremap_resource_wc(struct device *dev,
> > >  {
> > >       return __devm_ioremap_resource(dev, res, DEVM_IOREMAP_WC);
> > >  }
> > > +EXPORT_SYMBOL(devm_ioremap_resource_wc);
> >
> > EXPORT_SYMBOL_GPL() perhaps?
> >
> > What in-tree driver needs this?
> 
> I was experimenting with an out of tree driver and I also was using it wrong :D.
> Indeed looks like there is no real potential user so far in the kernel tree.

Great, we can drop it then :)

thanks,

greg k-h