Re: [PATCH] drivers/net/defxx.c: use %pM to show MAC address

From: Maciej W. Rozycki
Date: Mon Jan 04 2010 - 13:50:00 EST


On Wed, 30 Dec 2009, H Hartley Sweeten wrote:

> Use the %pM kernel extension to display the MAC address.
>
> The only difference in the output is that the MAC address is
> shown in the usual colon-separated hex notation.
>
> Signed-off-by: H Hartley Sweeten <hsweeten@xxxxxxxxxxxxxxxxxxx>
> Cc: David S. Miller <davem@xxxxxxxxxxxxx>

Nack. While I appreciate your effort, the FDDI standard defines opposite
bit-ordering for MAC addresses written in the dash-separated and the
colon-separated hexadecimal notation, which makes your change invalid,
sorry (you'd have to bit-swap them too and that would make addresses
counter-intuitive). Please note that `ifconfig' consistently uses the
dash-separated notation for FDDI interfaces too (I haven't checked other
tools like those in the "iproute" package; they may be buggy).

[I'd appreciate to be CCed on patch submissions to code I claim
maintenance of too.]

Maciej
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