linux-kernel - Re: [PATCH v2 1/2] arm64: dts: broadcom: clear the warnings caused by empty dma-ranges

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <9d8da0b4-07a4-6d35-8072-a512c22313e4@gmail.com>
Date:   Mon, 9 Nov 2020 10:00:44 -0800
From:   Florian Fainelli <f.fainelli@...il.com>
To:     Arnd Bergmann <arnd@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>
Cc:     "Leizhen (ThunderTown)" <thunder.leizhen@...wei.com>,
        Rob Herring <robh+dt@...nel.org>, Ray Jui <rjui@...adcom.com>,
        Scott Branden <sbranden@...adcom.com>,
        bcm-kernel-feedback-list <bcm-kernel-feedback-list@...adcom.com>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        linux-arm-msm <linux-arm-msm@...r.kernel.org>,
        devicetree <devicetree@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 1/2] arm64: dts: broadcom: clear the warnings caused by
 empty dma-ranges

On 11/9/20 9:56 AM, Arnd Bergmann wrote:
> On Mon, Nov 9, 2020 at 6:30 PM Florian Fainelli <f.fainelli@...il.com> wrote:
>>
>> On 11/8/20 10:18 PM, Leizhen (ThunderTown) wrote:
>>> Hi, everybody:
>>>   How do we deal with this problem? I updated the kernel to the latest and the problem still persists.
>>>
>>>   make ARCH=arm64 CROSS_COMPILE=aarch64-linux-gnu- -j24 dtbs 2>err.txt
>>>   vim err.txt
>>>
>>> arch/arm64/boot/dts/qcom/ipq6018.dtsi:185.3-14: Warning (dma_ranges_format): /soc:dma-ranges: empty "dma-ranges" property but its #address-cells (1) differs from / (2)
>>> arch/arm64/boot/dts/qcom/ipq6018.dtsi:185.3-14: Warning (dma_ranges_format): /soc:dma-ranges: empty "dma-ranges" property but its #size-cells (1) differs from / (2)
>>> arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #address-cells (1) differs from / (2)
>>> arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #size-cells (1) differs from / (2)
>>> arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #address-cells (1) differs from / (2)
>>> arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #size-cells (1) differs from / (2)
>>> arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #address-cells (1) differs from / (2)
>>> arch/arm64/boot/dts/broadcom/stingray/stingray-usb.dtsi:7.3-14: Warning (dma_ranges_format): /usb:dma-ranges: empty "dma-ranges" property but its #size-cells (1) differs from / (2)
>>
>> I was hoping that Ray or Scott could give this a try, and TBH, I am
>> still not a big fan of having to mangle the 'reg' property to be
>> compatible with #address-cells = <2> and #size-cells = <2>, I would have
>> preferred omitting the 'dma-ranges' property entirely.
>>
>> We have plenty of time to get this patch applied for v5.11.
> 
> I would much prefer to get the warning fixed for v5.10, once we know what the
> hardware can or cannot actually do, as it is one of the warnings that shows
> up in every kernelci build.

OK, in that case:

Acked-by: Florian Fainelli <f.fainelli@...il.com>

feel free to pick those patches directly for 5.10 fixes. Thanks!
-- 
Florian