linux-kernel - Re: [PATCH] drivers/core/of: Add symlink to device-tree from devices with an OF node

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Date:	Wed, 19 Nov 2014 13:35:44 +1100
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	Jeremy Kerr <jeremy.kerr@....ibm.com>
Cc:	Rob Herring <robherring2@...il.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
	Grant Likely <grant.likely@...aro.org>,
	Greg KH <gregkh@...uxfoundation.org>
Subject: Re: [PATCH] drivers/core/of: Add symlink to device-tree from
 devices with an OF node

On Wed, 2014-11-19 at 10:39 +1100, Jeremy Kerr wrote:
> Hi Rob,
> 
> >> diff --git a/drivers/base/core.c b/drivers/base/core.c
> >> index 20da3ad..8c7b607 100644
> >> --- a/drivers/base/core.c
> >> +++ b/drivers/base/core.c
> >> @@ -493,6 +493,15 @@ static int device_add_attrs(struct device *dev)
> >>                         goto err_remove_dev_groups;
> >>         }
> >>
> >> +#ifdef CONFIG_OF
> >> +       if (dev->of_node) {
> > 
> > if (IS_ENABLED(CONFIG_OF) && dev->of_node)
> 
> struct device doesn't have an of_node member if !CONFIG_OF, so we'll
> need to disable this block in the preprocessor.

Actually that's no longer the case since 2.6.39 afaik :-)

Cheers,
Ben.


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