Subject: Re: linux-next: build warnings after merge of the devicetree tree

From: Stephen Rothwell <[email-masked]>
Date: Mon, 5 Jan 2026 16:44:50 +1100

Hi Rob,

On Fri, 28 Nov 2025 08:54:34 -0600 Rob Herring <[email-masked]> wrote:
>
> On Thu, Nov 27, 2025 at 11:10 PM Stephen Rothwell <[email-masked]> wrote:
> >
> > On Tue, 18 Nov 2025 14:38:43 +1100 Stephen Rothwell <[email-masked]> wrote:  
> > >
> > > Hi all,
> > >
> > > After merging the devicetree tree, today's linux-next build (arm64
> > > defconfig) produced these warnings:
> > >
> > > scripts/Makefile.dtbs:20: .dtbo is not applied to any base: rp1.dtbo
> > > scripts/Makefile.dtbs:20: .dtbo is not applied to any base: mt7986a-bananapi-bpi-r3-emmc.dtbo mt7986a-bananapi-bpi-r3-nand.dtbo mt7986a-bananapi-bpi-r3-nor.dtbo mt7986a-bananapi-bpi-r3-sata.dtbo mt7986a-bananapi-bpi-r3-sd.dtbo mt7988a-bananapi-bpi-r4-emmc.dtbo mt7988a-bananapi-bpi-r4-pro-cn15.dtbo mt7988a-bananapi-bpi-r4-pro-cn18.dtbo mt7988a-bananapi-bpi-r4-pro-emmc.dtbo mt7988a-bananapi-bpi-r4-pro-sd.dtbo mt7988a-bananapi-bpi-r4-sd.dtbo mt8395-radxa-nio-12l-8-hd-panel.dtbo
> > > scripts/Makefile.dtbs:20: .dtbo is not applied to any base: k3-am62x-phyboard-lyra-gpio-fan.dtbo k3-am62-lp-sk-nand.dtbo k3-am642-phyboard-electra-gpio-fan.dtbo k3-am642-phyboard-electra-pcie-usb2.dtbo k3-am642-phyboard-electra-x27-gpio1-spi1-uart3.dtbo k3-am642-phyboard-electra-peb-c-010.dtbo k3-am6xx-phycore-disable-eth-phy.dtbo k3-am6xx-phycore-disable-rtc.dtbo k3-am6xx-phycore-disable-spi-nor.dtbo k3-am6xx-phycore-qspi-nor.dtbo k3-j721e-evm-gesi-exp-board.dtbo k3-am67a-kontron-sa67-gpios.dtbo
> > >
> > > Exposed by commit
> > >
> > >   d8c8a575f5aa ("kbuild: Ensure .dtbo targets are applied to a base .dtb")  
> >
> > I am still seeing these warnings.  
> 
> Patches are posted to fix all of them[1][2][3].
> 
> Rob
> 
> [1] https://lore.kernel.org/all/[email-masked]/
> [2] https://lore.kernel.org/all/[email-masked]/
> [3] https://lore.kernel.org/all/[email-masked]/

Today, we are down to just

scripts/Makefile.dtbs:20: .dtbo is not applied to any base: rp1.dtbo

-- 
Cheers,
Stephen Rothwell