linux-kernel - Re: [PATCH] ARM: pxa: cm-x2xx: avoid duplicate macro warnings

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Date:	Wed, 09 Dec 2015 22:00:49 +0100
From:	Robert Jarzmik <robert.jarzmik@...e.fr>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Daniel Mack <daniel@...que.org>,
	Haojian Zhuang <haojian.zhuang@...il.com>
Subject: Re: [PATCH] ARM: pxa: cm-x2xx: avoid duplicate macro warnings

Arnd Bergmann <arnd@...db.de> writes:

> In an old commit, we worked around the duplicate definition of
> GPIO24_SSP1_SFRM in cm-x2xx.c, which includes files for both
> pxa25x and pxa27x. Apparently the problem has come back and we
> now have four additional duplicate symbols that cause warnings:
>
> In file included from /git/arm-soc/arch/arm/mach-pxa/pxa27x.h:7:0,
>                  from /git/arm-soc/arch/arm/mach-pxa/cm-x2xx.c:27:
> /git/arm-soc/arch/arm/mach-pxa/mfp-pxa27x.h:21:0: warning: "GPIO86_GPIO" redefined
>  #define GPIO86_GPIO  MFP_CFG_IN(GPIO86, AF0)
>
> This uses the same hack as before and undefines all symbols that
> are defined more than once. Fortunately, cm-x2xx does not need
> any of these.
>
> Signed-off-by: Arnd Bergmann <arnd@...db.de>
Digging out old patches of 2012, cool.
Acked-by: Robert Jarzmik <robert.jarzmik@...e.fr>

I suppose it's a necessary hack until I manage to kill the mfp interface in
favor of pinctrl.

Cheers.

--
Robert
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