netdev - Re: [PATCH v2] core: dev: don't call BUG() on bad input

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Message-Id: <20110214.113645.189699477.davem@davemloft.net>
Date:	Mon, 14 Feb 2011 11:36:45 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	therbert@...gle.com
Cc:	segoon@...nwall.com, adobriyan@...il.com,
	linux-kernel@...r.kernel.org, eric.dumazet@...il.com,
	xiaosuo@...il.com, jesse@...ira.com, netdev@...r.kernel.org
Subject: Re: [PATCH v2] core: dev: don't call BUG() on bad input

From: Tom Herbert <therbert@...gle.com>
Date: Mon, 14 Feb 2011 11:33:29 -0800

> On Mon, Feb 14, 2011 at 11:25 AM, David Miller <davem@...emloft.net> wrote:
>> From: Vasiliy Kulikov <segoon@...nwall.com>
>> Date: Mon, 14 Feb 2011 18:23:10 +0300
>>
>>> On Mon, Feb 14, 2011 at 17:16 +0200, Alexey Dobriyan wrote:
>>>> Netdevice name isn't some random junk you get from userspace, so BUG is fine.
>>>
>>> It IS for bluetooth, see net/bluetooth/bnep/core.c: bnep_add_connection() and
>>> net/bluetooth/bnep/sock.c: bnep_sock_ioctl().
>>
>> If bluetooth wants to allow something so foolish, then it's bluetooth's
>> responsibility to sanity check the arguments before blinding passing
>> them into kernel APIs which expect sane inputs.
>>
>> I'm not applying this.
>>
> 
> Changing to BUG_ON(txqs < 1) and BUG_ON(rxqs < 1) does make sense I think.

Sure.
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