netdev - Re: [RFC] netlink broadcast return value

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Message-ID: <49881756.8000700@netfilter.org>
Date:	Tue, 03 Feb 2009 11:07:18 +0100
From:	Pablo Neira Ayuso <pablo@...filter.org>
To:	Inaky Perez-Gonzalez <inaky@...ux.intel.com>
CC:	netdev@...r.kernel.org, Patrick McHardy <kaber@...sh.net>,
	Netfilter Development Mailinglist 
	<netfilter-devel@...r.kernel.org>
Subject: Re: [RFC] netlink broadcast return value

Hi Iñaky,

Inaky Perez-Gonzalez wrote:
> On Sunday 01 February 2009, Pablo Neira Ayuso wrote:
> 
>> == genlmsg_multicast (calls nlmsg_multicast) ==
>> net/netlink/genetlink.c			: ignores return value
>> drivers/acpi/event.c			: printk error
>> fs/dquot.c				: printk error (if err != -ESRCH)
>> net/wireless/nl80211.c			: ignores return value
>>
>> In short, I think that the change that I'm proposing would also require
>> to fix some netlink_broadcast() clients to skip ENOBUFS errors: they are
>> not meaningful for them since they assume that Netlink is unreliable and
>> so the return value does not provide any useful information.
> 
> You are missing a few callers in net/wimax. Which kernel version did you
> do the analysis on?

I was using Patrick's tree (nf-2.6.git) which did not contain net/wimax
yet. I'm going to re-check against David's tree and let you know.

-- 
"Los honestos son inadaptados sociales" -- Les Luthiers
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