linux-kernel - Re: [PATCH 15/15] OF: remove #ifdef from linux/of

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Date:	Tue, 4 Jun 2013 08:01:13 -0500
From:	Rob Herring <robherring2@...il.com>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Grant Likely <grant.likely@...aro.org>,
	patches@...ts.linaro.org, Rob Herring <rob.herring@...xeda.com>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>
Subject: Re: [PATCH 15/15] OF: remove #ifdef from linux/of_platform.h

On Sat, Jun 1, 2013 at 3:57 PM, Arnd Bergmann <arnd@...db.de> wrote:
> On Saturday 01 June 2013, Rob Herring wrote:
>> No, we still need empty functions. Here is what of_device.h looks like:
>>
>> http://tinyurl.com/l2azz5m
>>
>> BTW, it has your ack.
>>
>
> Could you add a patch on top that only puts the function declarations
> inside of #ifdef that don't have an inline wrapper?

I'm confused. You mean that DO have an inline? Like this:

void foo(void);

#ifdef CONFIG_OF
void bar(void);
#else
static inline void bar(void) {}
#endif

> It's really annoying to have to change the header file every time one
> needs to call a function from a driver in the DT-only case.

The functions without inlines are ones that drivers should not call
and should only be called from OF enabled code. That's why we have not
done a complete pass of adding inlines for everything.

Rob
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