linux-kernel - Re: [BUG BISECT] Ethernet fail on VF50 (OF: Don't set default coherent DMA mask)

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Date:   Tue, 31 Jul 2018 08:43:53 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Robin Murphy <robin.murphy@....com>
Cc:     Stefan Agner <stefan@...er.ch>, Christoph Hellwig <hch@....de>,
        Krzysztof Kozlowski <krzk@...nel.org>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Fugang Duan <fugang.duan@....com>
Subject: Re: [BUG BISECT] Ethernet fail on VF50 (OF: Don't set default
 coherent DMA mask)

On Tue, Jul 31, 2018 at 03:09:34PM +0100, Robin Murphy wrote:
> >Please note that sparc images still generate the warning (next-20180731).
> 
> Ugh, OK, any ideas what sparc does to create these platform devices that
> isn't of_platform_device_create_pdata() and has somehow grown an implicit
> dependency on of_dma_configure() since 4.12? I'm looking, but nothing jumps
> out...
> 

I suspect it might be of_device_register(), called from
	arch/sparc/kernel/of_device_64.c:scan_one_device()
	arch/sparc/kernel/of_device_32.c:scan_one_device()

Guenter