linux-kernel - Re: [RFC] vsprintf: Add %pMR for Bluetooth MAC address

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Message-ID: <1337958437.30100.2.camel@joe2Laptop>
Date:	Fri, 25 May 2012 08:07:17 -0700
From:	Joe Perches <joe@...ches.com>
To:	andrei.emeltchenko.news@...il.com
Cc:	linux-kernel@...r.kernel.org, linux-bluetooth@...r.kernel.org,
	Andrei Emeltchenko <andrei.emeltchenko@...el.com>
Subject: Re: [RFC] vsprintf: Add %pMR for Bluetooth MAC address

On Fri, 2012-05-25 at 17:32 +0300, andrei.emeltchenko.news@...il.com
wrote:
> From: Andrei Emeltchenko <andrei.emeltchenko@...el.com>

Hi Andrei.

Just trivia:

> @@ -830,6 +840,7 @@ int kptr_restrict __read_mostly;
>   * - 'm' For a 6-byte MAC address, it prints the hex address without colons
>   * - 'MF' For a 6-byte MAC FDDI address, it prints the address
>   *       with a dash-separated hex notation
> + * - '[mM]R For a 6-byte MAC Bluetooth address, bits reversed

Reverse order

>   * - 'I' [46] for IPv4/IPv6 addresses printed in the usual way
>   *       IPv4 uses dot-separated decimal without leading 0's (1.2.3.4)
>   *       IPv6 uses colon separated network-order 16 bit hex with leading 0's
> @@ -890,7 +901,8 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
>  		return resource_string(buf, end, ptr, spec, fmt);
>  	case 'M':			/* Colon separated: 00:01:02:03:04:05 */
>  	case 'm':			/* Contiguous: 000102030405 */
> -					/* [mM]F (FDDI, bit reversed) */
> +					/* [mM]F (FDDI) */
> +					/* [mM]R (Bluetooth, bits reversed) */

here too


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