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Date:	Tue, 16 Jul 2013 13:58:57 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	joe@...ches.com
Cc:	netdev@...r.kernel.org
Subject: Re: sysfs_format_mac

From: Joe Perches <joe@...ches.com>
Date: Tue, 16 Jul 2013 13:46:26 -0700

> On Tue, 2013-07-16 at 12:56 -0700, David Miller wrote:
>> 
>> I assume that the only reason sysfs_format_mac() exists at all, and
>> don't just use scnprintf() calls with "%pm\n", is that some devices
>> have MAC addresses which are not 6 bytes in length.
>> 
>> But it's such a waste to have this special case piece of code
>> just for that.
>> 
>> It would make so much more sense to allow specifying a length
>> specifier to %pm and friends.
> 
> scnprintf("%*ph", (int)size, buffer)

Yes, exactly, something like that.
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