netdev - Re: [patch net-next-2.6 v2] net: consolidate and fix ethtool_ops->get

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Date:	Fri, 02 Sep 2011 19:46:01 +0100
From:	Ben Hutchings <bhutchings@...arflare.com>
To:	Jiri Pirko <jpirko@...hat.com>
Cc:	netdev@...r.kernel.org, ralf@...ux-mips.org, fubar@...ibm.com,
	andy@...yhouse.net, kaber@...sh.net, bprakash@...adcom.com,
	JBottomley@...allels.com, robert.w.love@...el.com,
	davem@...emloft.net, shemminger@...ux-foundation.org,
	decot@...gle.com, mirq-linux@...e.qmqm.pl,
	alexander.h.duyck@...el.com, amit.salecha@...gic.com,
	eric.dumazet@...il.com, therbert@...gle.com,
	paulmck@...ux.vnet.ibm.com, laijs@...fujitsu.com,
	xiaosuo@...il.com, greearb@...delatech.com, loke.chetan@...il.com,
	linux-mips@...ux-mips.org, linux-scsi@...r.kernel.org,
	devel@...n-fcoe.org, bridge@...ts.linux-foundation.org
Subject: Re: [patch net-next-2.6 v2] net: consolidate and fix
 ethtool_ops->get_settings calling

On Fri, 2011-09-02 at 14:26 +0200, Jiri Pirko wrote:
> This patch does several things:
> - introduces __ethtool_get_settings which is called from ethtool code and
>   from dev_ethtool_get_settings() as well.
> - dev_ethtool_get_settings() becomes rtnl wrapper for
>   __ethtool_get_settings()
[...]

I don't like this locking change.  Most other dev_*() functions require
the caller to hold RTNL, and it will break any OOT module calling
dev_ethtool_get_settings() without producing any warning at compile
time.  Why not put an ASSERT_RTNL() in it instead?

The rest of this looks fine.

Ben. 

-- 
Ben Hutchings, Staff Engineer, Solarflare
Not speaking for my employer; that's the marketing department's job.
They asked us to note that Solarflare product names are trademarked.

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