linux-kernel - Re: [PATCH] Improvev netconsole support for RTL8139 NIC driver

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Message-ID: <47E9C784.6050807@garzik.org>
Date:	Tue, 25 Mar 2008 23:48:20 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	David Miller <davem@...emloft.net>
CC:	yang.shi@...driver.com, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Improvev netconsole support for RTL8139 NIC driver

Jeff Garzik wrote:
> I am being realistic...  it's
> 
> * not needed
> * increases code size
> * increases number of CPU instructions executed
> * not needed

I also wonder if using spin_lock_irqsave() makes moving to a real-time 
kernel with interrupt threads more difficult for that driver.

And of course we're talking about a hot path here.

	Jeff


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