From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@infradead.org>
Subject: Re: [PATCH 08/10] aacraid: Disable device ID wildcard
Date: Fri, 4 Dec 2015 00:33:16 -0800
Message-ID: <20151204083316.GA32285@infradead.org>
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To: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@pmcs.com>
Cc: Tomas Henzl <thenzl@redhat.com>, "JBottomley@Parallels.com" <JBottomley@Parallels.com>, "linux-scsi@vger.kernel.org" <linux-scsi@vger.kernel.org>, Mahesh Rajashekhara <Mahesh.Rajashekhara@pmcs.com>, Murthy Bhat <Murthy.Bhat@pmcs.com>, Santosh Akula <Santosh.Akula@pmcs.com>, Gana Sridaran <Gana.Sridaran@pmcs.com>, "aacraid@pmc-sierra.com" <aacraid@pmc-sierra.com>, Rich Bono <Rich.Bono@pmcs.com>

On Thu, Dec 03, 2015 at 09:32:18PM +0000, Raghava Aditya Renukunta wrote:
> This will enable us to prevent aacraid from loading for PCI devices that match
> device ID wildcards. Enabling us to use say a new driver for future devices.

This looks like a bogus reason.  The same PCI ID should always be
compatible and mathed by the same driver.  Even if you add a new driver
to expose additional feature and break these semantics there is no point
to do a) reject them conditionally on a module option and b) do this
before said driver is merged.