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

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Message-ID: <AANLkTi=r-vt=Pr+xchiR+s12RDU9xQbXnmCB4pTJcc2_@mail.gmail.com>
Date:	Mon, 2 Aug 2010 14:56:51 -0300
From:	Thiago Farina <tfransosi@...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>,
	Cyrill Gorcunov <gorcunov@...nvz.org>,
	Pekka Enberg <penberg@...helsinki.fi>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] x86, setup: reorgize the early_console_setup

On Mon, Aug 2, 2010 at 4:13 AM, Yinghai Lu <yinghai@...nel.org> wrote:
> Index: linux-2.6/arch/x86/boot/string.c
> ===================================================================
> --- linux-2.6.orig/arch/x86/boot/string.c
> +++ linux-2.6/arch/x86/boot/string.c
> @@ -12,7 +12,21 @@
>  * Very basic string functions
>  */
>
> -#include "boot.h"
> +static inline int isdigit(int ch)
> +{
> +       return (ch >= '0') && (ch <= '9');
> +}
> +
> +static inline int isxdigit(int ch)
> +{
> +       if (isdigit(ch))
> +               return true;
> +
> +       if ((ch >= 'a') && (ch <= 'f'))
> +               return true;
> +
> +       return (ch >= 'A') && (ch <= 'F');
> +}
>

These to functions above can be fairly simplified by writting as:

static bool inline is_hex_digit(int c) {
  return (c >= '0' && c <= '9') ||
            (c >= 'A' && c <= 'F') ||
            (c >= 'a' && c <= 'f');
}

Thanks.
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