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Date: Mon, 01 Apr 2024 14:23:27 +0200
From: "Arnd Bergmann" <arnd@...db.de>
To: "Marc Zyngier" <maz@...nel.org>, linux-pci@...r.kernel.org,
 linux-kernel@...r.kernel.org
Cc: "Lorenzo Pieralisi" <lpieralisi@...nel.org>,
 Krzysztof Wilczyński <kw@...ux.com>,
 "Rob Herring" <robh@...nel.org>, "Bjorn Helgaas" <bhelgaas@...gle.com>
Subject: Re: [PATCH] PCI: apple: Fix dependency on 16kB pages

On Mon, Apr 1, 2024, at 14:19, Marc Zyngier wrote:
> While d3e5bab923d3 consolidated the various definitions for page sizes,
> it ended up breaking the Apple PCIe driver, which still depends on
> ARM64_PAGE_SHIFT. Switch over to HAVE_PAGE_SIZE_16KB to make the driver
> selectable again.
>
> Cc: Arnd Bergmann <arnd@...db.de>
> Cc: Lorenzo Pieralisi <lpieralisi@...nel.org>
> Cc: "Krzysztof Wilczyński" <kw@...ux.com>
> Cc: Rob Herring <robh@...nel.org>
> Cc: Bjorn Helgaas <bhelgaas@...gle.com>
> Fixes: d3e5bab923d3 ("arch: simplify architecture specific page size 
> configuration")
> Signed-off-by: Marc Zyngier <maz@...nel.org>

The dependency only exists in the asahi kernel with commit
db5709e83c11 ("PCI: apple: Add depends on ARM64_PAGE_SHIFT = 14")
and is not present upstream.

   Arnd

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