netdev - Re: Regression in net-2.6.24?

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Message-Id: <20071011.174026.26976971.davem@davemloft.net>
Date:	Thu, 11 Oct 2007 17:40:26 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	shemminger@...ux-foundation.org
Cc:	takano@...-inc.co.jp, netdev@...r.kernel.org,
	ilpo.jarvinen@...sinki.fi, mchan@...adcom.com
Subject: Re: Regression in net-2.6.24?

From: Stephen Hemminger <shemminger@...ux-foundation.org>
Date: Thu, 11 Oct 2007 17:31:49 -0700

> You don't need to re-read the status register and process the PHY irq's inside loop.
> Try this:

Are you sure?  What if a PHY interrupt comes in during the loop?

I'm just preserving the semantics of the driver when ->poll()
is invoked multiple times per interrupt.

And I think preserving that makes sense while we're purely
trying to fix this bug, so we don't add some new ones.
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