linux-kernel - Re: [PATCH 1/4] of/fdt: Update zone_dma

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Message-ID: <20201009071013.GA12208@lst.de>
Date:   Fri, 9 Oct 2020 09:10:13 +0200
From:   Christoph Hellwig <hch@....de>
To:     Nicolas Saenz Julienne <nsaenzjulienne@...e.de>
Cc:     Catalin Marinas <catalin.marinas@....com>,
        Rob Herring <robh+dt@...nel.org>, devicetree@...r.kernel.org,
        will@...nel.org, Frank Rowand <frowand.list@...il.com>,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        iommu@...ts.linux-foundation.org,
        linux-rpi-kernel@...ts.infradead.org, robin.murphy@....com,
        hch@....de, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/4] of/fdt: Update zone_dma_bits when running in
 bcm2711

On Thu, Oct 08, 2020 at 12:05:25PM +0200, Nicolas Saenz Julienne wrote:
> Sadly I just realised that the series is incomplete, we have RPi4 users that
> want to boot unsing ACPI, and this series would break things for them. I'll
> have a word with them to see what we can do for their use-case.

Stupid question:  why do these users insist on a totally unsuitable
interface?  And why would we as Linux developers care to support such
a aims?