linux-kernel - Re: [PATCH 2/3] kconfig: add a function to get the CONFIG

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Message-ID: <5081875D.90105@suse.cz>
Date:	Fri, 19 Oct 2012 19:01:17 +0200
From:	Michal Marek <mmarek@...e.cz>
To:	"Yann E. MORIN" <yann.morin.1998@...e.fr>
Cc:	linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2/3] kconfig: add a function to get the CONFIG_ prefix

On 18.10.2012 21:50, Yann E. MORIN wrote:
> -#ifndef CONFIG_
> -#define CONFIG_ "CONFIG_"
> +/* Those two defines copied from include/linux/stringify.h */
> +#define __stringify_1(x...)	#x
> +#define __stringify(x...)	__stringify_1(x)
> +static inline const char *CONFIG_prefix(void)
> +{
> +	return __stringify(CONFIG_);

This changes the semantics of the CONFIG_ macro. Previously, a
double-quoted string was accepted, now you have to define it to a token
that is turned into a string. Why don't you keep it as before and just do a

return CONFIG_;

in the function?

Michal
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