linux-kernel - Re: [PATCH 02/11] drivers: isdn: use new hex_to

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Date:	Mon, 22 Feb 2010 22:22:44 +0100
From:	Tilman Schmidt <tilman@...p.cc>
To:	Andy Shevchenko <andy.shevchenko@...il.com>
CC:	linux-kernel@...r.kernel.org,
	Andy Shevchenko <ext-andriy.shevchenko@...ia.com>
Subject: Re: [PATCH 02/11] drivers: isdn: use new hex_to_bin() method

Am 22.02.2010 19:09 schrieb Andy Shevchenko:
> From: Andy Shevchenko <ext-andriy.shevchenko@...ia.com>
> 
> Get rid of own implementation of hex_to_bin().
> 
> Please note it requires to have hex_to_bin() introduced by one of previous
> patch [1] which is not applied yet.
> 
> [1] http://patchwork.kernel.org/patch/80404/
> 
> Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@...ia.com>
> Cc: Tilman Schmidt <tilman@...p.cc>

Acked-by: Tilman Schmidt <tilman@...p.cc>

> ---
>  drivers/isdn/gigaset/capi.c |   13 +------------
>  1 files changed, 1 insertions(+), 12 deletions(-)
> 
> diff --git a/drivers/isdn/gigaset/capi.c b/drivers/isdn/gigaset/capi.c
> index 3f5cd06..532ca33 100644
> --- a/drivers/isdn/gigaset/capi.c
> +++ b/drivers/isdn/gigaset/capi.c
> @@ -183,17 +183,6 @@ static inline int ishexdigit(char c)
>  }
>  
>  /*
> - * convert hex to binary
> - */
> -static inline u8 hex2bin(char c)
> -{
> -	int result = c & 0x0f;
> -	if (c & 0x40)
> -		result += 9;
> -	return result;
> -}
> -
> -/*
>   * convert an IE from Gigaset hex string to ETSI binary representation
>   * including length byte
>   * return value: result length, -1 on error
> @@ -204,7 +193,7 @@ static int encode_ie(char *in, u8 *out, int maxlen)
>  	while (*in) {
>  		if (!ishexdigit(in[0]) || !ishexdigit(in[1]) || l >= maxlen)
>  			return -1;
> -		out[++l] = (hex2bin(in[0]) << 4) + hex2bin(in[1]);
> +		out[++l] = (hex_to_bin(in[0]) << 4) + hex_to_bin(in[1]);
>  		in += 2;
>  	}
>  	out[0] = l;

-- 
Tilman Schmidt                    E-Mail: tilman@...p.cc
Bonn, Germany
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