linux-kernel - Re: [PATCH -v3 1/2] x86, setup: reorgize the early_console

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Date:	Mon, 2 Aug 2010 21:43:34 +0400
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Yinghai Lu <yinghai@...nel.org>
Cc:	"H. Peter Anvin" <hpa@...or.com>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>,
	Pekka Enberg <penberg@...helsinki.fi>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH -v3 1/2] x86, setup: reorgize the early_console_setup

On Mon, Aug 02, 2010 at 02:17:31AM -0700, Yinghai Lu wrote:
...
> Index: linux-2.6/arch/x86/boot/printf.c
> ===================================================================
> --- linux-2.6.orig/arch/x86/boot/printf.c
> +++ linux-2.6/arch/x86/boot/printf.c
> @@ -34,7 +34,7 @@ static int skip_atoi(const char **s)
>  #define SMALL	32		/* Must be 32 == 0x20 */
>  #define SPECIAL	64		/* 0x */
>  
> -#define do_div(n,base) ({ \
> +#define __do_div(n, base) ({ \
>  int __res; \
>  __res = ((unsigned long) n) % (unsigned) base; \
>  n = ((unsigned long) n) / (unsigned) base; \
> @@ -83,7 +83,7 @@ static char *number(char *str, long num,
>  		tmp[i++] = '0';
>  	else
>  		while (num != 0)
> -			tmp[i++] = (digits[do_div(num, base)] | locase);
> +			tmp[i++] = (digits[__do_div(num, base)] | locase);

Yinghai, what was wrong with the origin do_div? After inclusion it as "printf.c"
in another *.c do_div gets clashed?

	-- Cyrill
--
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