On 11/9/20 9:56 AM, Arnd Bergmann wrote: > On Mon, Nov 9, 2020 at 6:30 PM Florian Fainelli <f.fainelli@xxxxxxxxx> 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@xxxxxxxxx> feel free to pick those patches directly for 5.10 fixes. Thanks! -- Florian