linux-kernel - Re: [PATCH] pci: add kernel config option for disabling common PCI quirks

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Message-ID: <20161221101915.GC14781@wunner.de>
Date:   Wed, 21 Dec 2016 11:19:15 +0100
From:   Lukas Wunner <lukas@...ner.de>
To:     John Crispin <john@...ozen.org>
Cc:     Bjorn Helgaas <bhelgaas@...gle.com>, linux-pci@...r.kernel.org,
        linux-kernel@...r.kernel.org, Gabor Juhos <juhosg@...nwrt.org>
Subject: Re: [PATCH] pci: add kernel config option for disabling common PCI
 quirks

On Wed, Dec 21, 2016 at 08:53:04AM +0100, John Crispin wrote:
> From: Gabor Juhos <juhosg@...nwrt.org>
> 
> These quirks do not effect small small plastic routers. These routers tend
> to have very little flash space. This patch adds a new option that allows
> us to build a kernel without including the common quirks, thus saving us
> valuable flash space.
> 
> When building an image for a MIPS/Ralink router with this option enabled
> it will reduce the size of an uncompressed uImage by 12KB.

There's already a PCI_QUIRKS config option defined in init/Kconfig,
why isn't this sufficient?  Do you want *some* quirks but not others?

Thanks,

Lukas