Re: [PATCH 1/2] vsprintf: Add %pMbt, bluetooth mac address
From: Gustavo F. Padovan
Date: Mon Dec 06 2010 - 13:11:14 EST
Hi Joe,
* Joe Perches <joe@xxxxxxxxxxx> [2010-12-03 18:33:03 -0800]:
> Bluetooth output the MAC address in reverse order.
> Bluetooth memory order: 00 01 02 03 04 05 is output "05:04:03:02:01:00".
>
> This can save overall text when bluetooth is compiled in.
>
> Bluetooth currently uses a very slightly unsafe local function (batostr)
> to output these formatted addresses.
>
> Adding %pMbt allows the batostr function to be removed.
>
> For x86:
>
> $ size lib/vsprintf*.o*
> text data bss dec hex filename
> 8189 0 2 8191 1fff lib/vsprintf.o.defconfig.new
> 8150 0 2 8152 1fd8 lib/vsprintf.o.defconfig.old
> 18633 56 3936 22625 5861 lib/vsprintf.o.allyesconfig.new
> 18571 56 3920 22547 5813 lib/vsprintf.o.allyesconfig.old
>
> Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
Looks good to me.
Acked-by: Gustavo F. Padovan <padovan@xxxxxxxxxxxxxx>
--
Gustavo F. Padovan
http://profusion.mobi
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