linux-kernel - Re: [RFC PATCHv3] printk: add %pM format specifier for MAC addresses

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Date:	Mon, 27 Oct 2008 16:14:14 -0700
From:	Harvey Harrison <harvey.harrison@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	johannes@...solutions.net, anders@...uras.de,
	netdev@...r.kernel.org, akpm@...ux-foundation.org,
	linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCHv3] printk: add %pM format specifier for MAC
 addresses

On Mon, 2008-10-27 at 15:47 -0700, David Miller wrote:
> From: Harvey Harrison <harvey.harrison@...il.com>
> Date: Mon, 27 Oct 2008 12:59:02 -0700
> 
> > Add format specifiers for printing out six colon-separated bytes:
> > 
> > MAC addresses (%pM):
> > xx:xx:xx:xx:xx:xx
> > 
> > %#pM is also supported and omits the colon separators.
> > 
> > Signed-off-by: Harvey Harrison <harvey.harrison@...il.com>
> 
> Applied, thanks.

Did you happen to have a preference with regard to the specifier for
IPv6 addresses:

I was thinking of using %pI6 to replace NIP6() and NIP6_FMT and using
%#pI6 for NIP6_SEQFMT.

On the IPv4 side, maybe use %pI4 for network endian NIPQUAD() and NIPQUAD_FMT
and then %#pI4 for host-endian HIQUAD(), as displaying the IPv4 address without
the periods isn't useful?

What do you think of that?

Harvey

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