linux-kernel - Re: [PATCH] kgdb: remove custom hex_to

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Message-ID: <AANLkTim7CGIWmw1W2_XI-ApaVP6dg5ApVEq3bzFVKHnG@mail.gmail.com>
Date:	Mon, 28 Jun 2010 10:22:42 +0800
From:	Dongdong Deng <libfetion@...il.com>
To:	Andy Shevchenko <andy.shevchenko@...il.com>
Cc:	linux-kernel@...r.kernel.org,
	Andy Shevchenko <ext-andriy.shevchenko@...ia.com>,
	Jason Wessel <jason.wessel@...driver.com>,
	Martin Hicks <mort@....com>,
	kgdb-bugreport@...ts.sourceforge.net
Subject: Re: [PATCH] kgdb: remove custom hex_to_bin() implementation

It is ok to me. :-)

Best Regards,
Dongdong

On Thu, Jun 17, 2010 at 5:33 PM, Andy Shevchenko
<andy.shevchenko@...il.com> wrote:
> From: Andy Shevchenko <ext-andriy.shevchenko@...ia.com>
>
> Signed-off-by: Andy Shevchenko <ext-andriy.shevchenko@...ia.com>
> Cc: Jason Wessel <jason.wessel@...driver.com>
> Cc: Martin Hicks <mort@....com>
> Cc: kgdb-bugreport@...ts.sourceforge.net
> ---
>  kernel/debug/gdbstub.c |   21 +++++----------------
>  1 files changed, 5 insertions(+), 16 deletions(-)
>
> diff --git a/kernel/debug/gdbstub.c b/kernel/debug/gdbstub.c
> index 4b17b32..d721b1b 100644
> --- a/kernel/debug/gdbstub.c
> +++ b/kernel/debug/gdbstub.c
> @@ -52,17 +52,6 @@ static unsigned long         gdb_regs[(NUMREGBYTES +
>  * GDB remote protocol parser:
>  */
>
> -static int hex(char ch)
> -{
> -       if ((ch >= 'a') && (ch <= 'f'))
> -               return ch - 'a' + 10;
> -       if ((ch >= '0') && (ch <= '9'))
> -               return ch - '0';
> -       if ((ch >= 'A') && (ch <= 'F'))
> -               return ch - 'A' + 10;
> -       return -1;
> -}
> -
>  #ifdef CONFIG_KGDB_KDB
>  static int gdbstub_read_wait(void)
>  {
> @@ -123,8 +112,8 @@ static void get_packet(char *buffer)
>                buffer[count] = 0;
>
>                if (ch == '#') {
> -                       xmitcsum = hex(gdbstub_read_wait()) << 4;
> -                       xmitcsum += hex(gdbstub_read_wait());
> +                       xmitcsum = hex_to_bin(gdbstub_read_wait()) << 4;
> +                       xmitcsum += hex_to_bin(gdbstub_read_wait());
>
>                        if (checksum != xmitcsum)
>                                /* failed checksum */
> @@ -280,8 +269,8 @@ int kgdb_hex2mem(char *buf, char *mem, int count)
>        tmp_hex = tmp_raw - 1;
>        while (tmp_hex >= buf) {
>                tmp_raw--;
> -               *tmp_raw = hex(*tmp_hex--);
> -               *tmp_raw |= hex(*tmp_hex--) << 4;
> +               *tmp_raw = hex_to_bin(*tmp_hex--);
> +               *tmp_raw |= hex_to_bin(*tmp_hex--) << 4;
>        }
>
>        return probe_kernel_write(mem, tmp_raw, count);
> @@ -304,7 +293,7 @@ int kgdb_hex2long(char **ptr, unsigned long *long_val)
>                (*ptr)++;
>        }
>        while (**ptr) {
> -               hex_val = hex(**ptr);
> +               hex_val = hex_to_bin(**ptr);
>                if (hex_val < 0)
>                        break;
>
> --
> 1.6.3.3
>
> --
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