netdev - Re: [PATCH] tehuti: driver for Tehuti 10GbE network adapters

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Date:	Wed, 19 Sep 2007 18:41:03 +0100
From:	'Christoph Hellwig' <hch@...radead.org>
To:	Alexander Indenbaum <baum@...utinetworks.net>
Cc:	'Christoph Hellwig' <hch@...radead.org>, jeff@...zik.org,
	davem@...emloft.org, akpm@...ux-foundation.org,
	netdev@...r.kernel.org, 'Nadav Shemer' <nadav@...utinetworks.net>,
	'Andy Gospodarek' <andy@...yhouse.net>
Subject: Re: [PATCH] tehuti: driver for Tehuti 10GbE network adapters

On Wed, Sep 19, 2007 at 07:37:18PM +0200, Alexander Indenbaum wrote:
> In my understanding unregister_netdev(), in case netdev is still IFF_UP and
> holds irq, will call dev_close() which will call netdev->stop(), bdx_close()
> in our case. bdx_close() releases all netdev resources among others calls
> free_irq().
> 
> That's why I'm pretty sure that we do not hold any reference to netdev after
> unregister_netdev() finishes and we can free_netdev() without any worry :)
> 
> What do you think, does it still look fishy?

Ok, so you do irq acquire/release in open/close so that bit is fine.
The code might actually work as is, sorry for the noise.
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