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Date:   Thu, 5 Oct 2023 08:29:21 -0500
From:   Nishanth Menon <nm@ti.com>
To:     Roger Quadros <rogerq@kernel.org>
CC:     "Raghavendra, Vignesh" <vigneshr@ti.com>,
        Stephen Rothwell <sfr@canb.auug.org.au>,
        Tero Kristo <kristo@kernel.org>,
        Santosh Shilimkar <ssantosh@kernel.org>,
        Rob Herring <robh+dt@kernel.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Linux Next Mailing List <linux-next@vger.kernel.org>
Subject: Re: linux-next: build warnings after merge of the ti tree
Message-ID: <20231005132921.2vg6kdcr273bh7et@cabbage>
References: <20231005141536.77538147@canb.auug.org.au>
 <f70dec2a-dbdf-479c-af5b-a70db02b27b4@ti.com>
 <2905cfc2-912f-4620-9455-2e91586a2839@kernel.org>
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On 16:12-20231005, Roger Quadros wrote:
> Hi,
> 
> On 05/10/2023 11:25, Raghavendra, Vignesh wrote:
> > + Rob and DT list
> > 
> > Hi Stephen
> > 
> > On 10/5/2023 8:45 AM, Stephen Rothwell wrote:
> >> Hi all,
> >>
> >> [I may have missed this yesterday, sorry]
> >>
> >> After merging the ti tree, today's linux-next build (arm64 defconfig)
> >> produced these warnings:
> >>
> >> arch/arm64/boot/dts/ti/k3-am642-evm-nand.dtso:65.8-140.3: Warning (avoid_default_addr_size): /fragment@3/__overlay__: Relying on default #address-cells value
> >> arch/arm64/boot/dts/ti/k3-am642-evm-nand.dtso:65.8-140.3: Warning (avoid_default_addr_size): /fragment@3/__overlay__: Relying on default #size-cells value
> >>
> >> Introduced by commit
> >>
> >>   45a0c06571e1 ("arm64: dts: ti: am642-evm: Add overlay for NAND expansion card")
> >>
> > 
> > Thanks for the report. I will drop the offending comment.
> > 
> > Roger,
> > 
> > Sorry, this would need to be fixed in dtc or need exception from DT
> > maintainers to ignore the warnings.
> 
> Please don't drop this patch as the issue is not with the patch but with
> the dtc tool itself.
> 
> As this is a DT overlay there is no way to specify address-cells/size-cells
> of parent here. This will be resolved only after merge with base tree.
> 
> This will be fixed in next dtc sync.
> https://www.spinics.net/lists/devicetree-compiler/msg04036.html
> 
> See further discussion here
> https://lore.kernel.org/all/CAL_JsqLmv904+_2EOmsQ__y1yLDvsT+_02i85phuh0cpe7X8NQ@mail.gmail.com/
> 

Roger, build warnings are a strict NO,NO for kernel. Lets bring in the
series *after* the dtc sync is complete.

-- 
Regards,
Nishanth Menon
Key (0xDDB5849D1736249D) / Fingerprint: F8A2 8693 54EB 8232 17A3  1A34 DDB5 849D 1736 249D