netdev - Re: [RFC] Enhance dev_ioctl to return <hwaddr>:<if_name::if

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Message-ID: <AANLkTineSDEEKY-9ve2maSBmPWBxkW5XmqnHlLtIOClx@mail.gmail.com>
Date:	Fri, 16 Jul 2010 16:15:44 -0400
From:	Chetan Loke <chetanloke@...il.com>
To:	David Miller <davem@...emloft.net>
Cc:	shemminger@...tta.com, Chetan.Loke@...scout.com,
	bhutchings@...arflare.com, netdev@...r.kernel.org
Subject: Re: [RFC] Enhance dev_ioctl to return <hwaddr>:<if_name::if_index> 
	mapping

On Fri, Jul 16, 2010 at 4:04 PM, David Miller <davem@...emloft.net> wrote:
> From: Chetan Loke <chetanloke@...il.com>
> Date: Fri, 16 Jul 2010 16:02:23 -0400
>
>> So all user space apps should replicate code when all of that can be
>> replaced at the cost of a single for-loop in a non fast-path code
>> within the kernel?
>
> When there is a way to do something already, we don't add "yet another"
> way to do it.  The kernel already suffers from API masterbation as-is.
>

Ok, what if, i) ifindex == 0 in the call to SIOCGIFINDEX or ii) if the
ifindex is not found ? May be then in the else clause we could search
using the hw-addr before bailing out ;)? This way we can avoid adding
a new API. Still not a good idea?
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