linux-kernel - Re: Build failures for specific .dtb file on v6.5

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Message-ID: <b3ca549a-71a8-497c-8350-ac5129737ff5@alliedtelesis.co.nz>
Date:   Thu, 31 Aug 2023 22:34:29 +0000
From:   Chris Packham <Chris.Packham@...iedtelesis.co.nz>
To:     "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-kbuild@...r.kernel.org" <linux-kbuild@...r.kernel.org>
Subject: Re: Build failures for specific .dtb file on v6.5


On 1/09/23 10:22, Chris Packham wrote:
> Hi,
>
> In earlier kernel versions (just reconfirmed on v6.4) I can do
>
>   make ARCH=arm O=build multi_v7_defconfig
>   make ARCH=arm O=build armada-xp-db-dxbc2.dtb
>
> and that one specific .dtb file will be generated.
>
> With v6.5 (and master, currently 87dfd85c3892)  I get the following error
>
>   make ARCH=arm O=build multi_v7_defconfig
>   make ARCH=arm O=build armada-xp-db-dxbc2.dtb
>   ...
>   make[3]: *** No rule to make target 
> 'arch/arm/boot/dts/armada-xp-db-dxbc2.dtb'.  Stop.
>   make[2]: *** [src/linux/Makefile:1469: armada-xp-db-dxbc2.dtb] Error 2
>   make[1]: *** [src/linux/Makefile:234: __sub-make] Error 2
>   make[1]: Leaving directory 'src/linux/build'
>   make: *** [Makefile:234: __sub-make] Error 2
>
> I wasn't entirely sure which mailing list to direct this at so I've 
> cast the net fairly wide. I'll try to setup an automated bisect and 
> report back if I narrow the problem down.

Bisect points to 724ba6751532 ("ARM: dts: Move .dts files to vendor 
sub-directories") which given the subject makes sense. I'll adjust our 
build recipes to use the vendor prefix. Sorry for the noise.