linux-kernel - Re: [PATCH] ALSA: hda-intel - Disable MSI support by default

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Date:	Tue, 14 Nov 2006 20:28:14 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	jeff@...zik.org
Cc:	torvalds@...l.org, linux-kernel@...r.kernel.org, tiwai@...e.de
Subject: Re: [PATCH] ALSA: hda-intel - Disable MSI support by default

From: Jeff Garzik <jeff@...zik.org>
Date: Tue, 14 Nov 2006 23:24:04 -0500

> I can't answer for the spec, but at least two independent device vendors 
> recommended to write an MSI driver that way (disable intx, enable msi).

Ok.

> Completely independent of MSI though, a PCI 2.2 compliant driver should 
> be nice and disable intx on exit, just to avoid any potential interrupt 
> hassles after driver unload.  And of course be aware that it might need 
> to enable intx upon entry.

This also sounds like it should occur in the generic PCI layer when a
PCI driver is unregistered.
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