linux-kernel - Re: [PATCH 0/2] Devicetree support for UML

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Date:   Tue, 21 Dec 2021 22:13:03 +0100 (CET)
From:   Richard Weinberger <richard@....at>
To:     Johannes Berg <johannes@...solutions.net>
Cc:     Vincent Whitchurch <vincent.whitchurch@...s.com>,
        Jeff Dike <jdike@...toit.com>,
        anton ivanov <anton.ivanov@...bridgegreys.com>,
        kernel <kernel@...s.com>,
        linux-kernel <linux-kernel@...r.kernel.org>,
        linux-um <linux-um@...ts.infradead.org>,
        devicetree <devicetree@...r.kernel.org>
Subject: Re: [PATCH 0/2] Devicetree support for UML

----- Ursprüngliche Mail -----
> Von: "Johannes Berg" <johannes@...solutions.net>
> An: "richard" <richard@....at>, "Vincent Whitchurch" <vincent.whitchurch@...s.com>
> CC: "Jeff Dike" <jdike@...toit.com>, "anton ivanov" <anton.ivanov@...bridgegreys.com>, "kernel" <kernel@...s.com>,
> "linux-kernel" <linux-kernel@...r.kernel.org>, "linux-um" <linux-um@...ts.infradead.org>, "devicetree"
> <devicetree@...r.kernel.org>
> Gesendet: Dienstag, 21. Dezember 2021 21:56:50
> Betreff: Re: [PATCH 0/2] Devicetree support for UML

> On Tue, 2021-12-21 at 21:55 +0100, Richard Weinberger wrote:
>> Vincent,
>> 
>> ----- Ursprüngliche Mail -----
>> > Von: "Vincent Whitchurch" <vincent.whitchurch@...s.com>
>> > An: "Jeff Dike" <jdike@...toit.com>, "richard" <richard@....at>, "anton ivanov"
>> > <anton.ivanov@...bridgegreys.com>
>> > CC: kernel@...s.com, "linux-kernel" <linux-kernel@...r.kernel.org>, "linux-um"
>> > <linux-um@...ts.infradead.org>,
>> > "devicetree" <devicetree@...r.kernel.org>, "Vincent Whitchurch"
>> > <vincent.whitchurch@...s.com>
>> > Gesendet: Mittwoch, 8. Dezember 2021 16:11:21
>> > Betreff: [PATCH 0/2] Devicetree support for UML
>> 
>> > This series add support for passing a devicetree blob to UML.  It can be used
>> > for testing device drivers.
>> 
>> Nice feature.
>> Code looks good so far. But while building I'm facing this warning:
>> 
>> WARNING: unmet direct dependencies detected for OF_EARLY_FLATTREE
>>   Depends on [n]: OF [=n]
>>   Selected by [y]:
>>   - UML [=y]
>> 
>> 
>> Please note that my UML config has CONFIG_OF=n.
>> 
> 
> Hm. So maybe that needs to be
> 
>	select OF_EARLY_FLATTREE if OF

Yeah, IIRC arm and mips use such a pattern too.
Vincent, what do you think?

Thanks,
//richard