Subject: Re: [PATCH] of: fix build failure

From: Sudip Mukherjee <[email-masked]>
Date: Mon, 7 Dec 2015 12:06:34 +0530

On Sat, Dec 05, 2015 at 12:09:41PM +0100, Geert Uytterhoeven wrote:
> Hi Sudip
> 
> On Thu, Dec 3, 2015 at 9:38 AM, Sudip Mukherjee
> <[email-masked]> wrote:
> > We are having build failure with next-20151202 for sparc allmodconfig
> > with the error messages:
> > undefined reference to 'of_io_request_and_map'
> >
> > CONFIG_OF is defined for sparc so it is expected that we have a
> > definition of of_io_request_and_map() but of/address.c is only compiled
> > if it is !SPARC.
> 
> No, it's compiled depending on CONFIG_OF_ADDRESS...

yes, ofcourse. I did it looking at:
config OF_ADDRESS
def_bool y
depends on !SPARC && HAS_IOMEM
> 
> > Signed-off-by: Sudip Mukherjee <[email-masked]>
> > ---
<snip>
> > +#if defined(CONFIG_OF) && !defined(CONFIG_SPARC)
> 
> ... hence wouldn't it be better to use "#ifdef CONFIG_OF_ADDRESS" instead?
> 
I will test with today's next and send v2.

regards
sudip