On Wed, 20 Jun 2012 13:44:49 +0300
Andrei Emeltchenko <Andrei.Emeltchenko.news@xxxxxxxxx> wrote:
> From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
>
> Add information about new specifier %pMR for Bluetooth addresses.
>
> ...
>
> --- a/Documentation/printk-formats.txt
> +++ b/Documentation/printk-formats.txt
> @@ -56,6 +56,7 @@ Struct Resources:
> MAC/FDDI addresses:
>
> %pM 00:01:02:03:04:05
> + %pMR 05:04:03:02:01:00
> %pMF 00-01-02-03-04-05
> %pm 000102030405
>
> @@ -67,6 +68,10 @@ MAC/FDDI addresses:
> the 'M' specifier to use dash ('-') separators instead of the default
> separator.
>
> + For Bluetooth addresses the 'R' specifier shall be used after the 'M'
> + specifier to use reversed byte order suitable for visual interpretation
> + of Bluetooth addresses which are in the little endian order.
> +
huh, I didn't know about that file, or I forgot about it. I wonder if
it is otherwise up to date.
Do we really need it? If we can sufficiently document the printk
formats in lib/vsprintf.c then let's remove
Documentation/printk-formats.txt. Otherwise, I shall do this:
--- a/lib/vsprintf.c
+++ a/lib/vsprintf.c
@@ -1297,6 +1297,8 @@ qualifier:
* case.
* %n is ignored
*
+ * ** Please update Documentation/printk-formats.txt when making changes **
+ *
* The return value is the number of characters which would
* be generated for the given input, excluding the trailing
* '\0', as per ISO C99. If you want to have the exact
_
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