linux-kernel - Re: [PATCH v3 0/2] Mark Ethernet devices on sa8775p as DMA-coherent

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Date: Tue, 14 May 2024 09:21:08 -0500
From: Andrew Halaney <ahalaney@...hat.com>
To: Sagar Cheluvegowda <quic_scheluve@...cinc.com>
Cc: Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>, Vinod Koul <vkoul@...nel.org>, 
	"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
	Bhupesh Sharma <bhupesh.sharma@...aro.org>, kernel@...cinc.com, linux-arm-msm@...r.kernel.org, 
	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCH v3 0/2] Mark Ethernet devices on sa8775p as DMA-coherent

On Tue, May 07, 2024 at 06:30:59PM GMT, Sagar Cheluvegowda wrote:
> To: Bjorn Andersson <andersson@...nel.org>
> To: Konrad Dybcio <konrad.dybcio@...aro.org>
> To: Rob Herring <robh@...nel.org>
> To: Krzysztof Kozlowski <krzk+dt@...nel.org>
> To: Conor Dooley <conor+dt@...nel.org>
> To: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> To: Andrew Halaney <ahalaney@...hat.com>
> To: Vinod Koul <vkoul@...nel.org>
> To: David S. Miller <davem@...emloft.net>
> To: Eric Dumazet <edumazet@...gle.com>
> To: Jakub Kicinski <kuba@...nel.org>
> To: Paolo Abeni <pabeni@...hat.com>
> To: Bhupesh Sharma <bhupesh.sharma@...aro.org>
> Cc: kernel@...cinc.com
> Cc: linux-arm-msm@...r.kernel.org
> Cc: devicetree@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> Cc: netdev@...r.kernel.org
> 
> Patch 1 :- This patch marks Ethernet devices on Sa8775p as DMA-coherent
> as both the devices are cache coherent.
> 
> Patch 2 :- Update the schema of qcom,ethqos to allow specifying Ethernet
> devices as "dma-coherent".

I've been keeping my eye on this series, and realized that I should know
better (but don't). How can I tell what tree these should go through?

Just trolling through the list, it seems dt-bindings go through netdev,
whereas dts changes go through the Qualcomm tree.

Is there something in the get_maintainers.pl output that I should be
interpreting differently to understand what patch should target what
maintainer tree?

    halaney@...en2nano ~/git/linux-next (git)-[remotes/net/main] % ./scripts/get_maintainer.pl Documentation/devicetree/bindings/net/qcom,ethqos.yaml     :(
    Vinod Koul <vkoul@...nel.org> (maintainer:QUALCOMM ETHQOS ETHERNET DRIVER)
    Bjorn Andersson <andersson@...nel.org> (maintainer:ARM/QUALCOMM SUPPORT)
    Konrad Dybcio <konrad.dybcio@...aro.org> (maintainer:ARM/QUALCOMM SUPPORT)
    "David S. Miller" <davem@...emloft.net> (maintainer:NETWORKING DRIVERS)
    Eric Dumazet <edumazet@...gle.com> (maintainer:NETWORKING DRIVERS)
    Jakub Kicinski <kuba@...nel.org> (maintainer:NETWORKING DRIVERS)
    Paolo Abeni <pabeni@...hat.com> (maintainer:NETWORKING DRIVERS)
    Rob Herring <robh@...nel.org> (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)
    Krzysztof Kozlowski <krzk+dt@...nel.org> (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)
    Conor Dooley <conor+dt@...nel.org> (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)
    Bhupesh Sharma <bhupesh.sharma@...aro.org> (in file)
    netdev@...r.kernel.org (open list:QUALCOMM ETHQOS ETHERNET DRIVER)
    linux-arm-msm@...r.kernel.org (open list:QUALCOMM ETHQOS ETHERNET DRIVER)
    devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)
    linux-kernel@...r.kernel.org (open list)

I don't know how to figure out who takes this patch in the end based on
the output above :)

    ahalaney@...en2nano ~/git/linux-next (git)-[remotes/net/main] % ./scripts/get_maintainer.pl arch/arm64/boot/dts/qcom/sa8775p.dtsi                 
    Bjorn Andersson <andersson@...nel.org> (maintainer:ARM/QUALCOMM SUPPORT)
    Konrad Dybcio <konrad.dybcio@...aro.org> (maintainer:ARM/QUALCOMM SUPPORT)
    Rob Herring <robh@...nel.org> (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)
    Krzysztof Kozlowski <krzk+dt@...nel.org> (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)
    Conor Dooley <conor+dt@...nel.org> (maintainer:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)
    linux-arm-msm@...r.kernel.org (open list:ARM/QUALCOMM SUPPORT)
    devicetree@...r.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS)
    linux-kernel@...r.kernel.org (open list)
    ahalaney@...en2nano ~/git/linux-next (git)-[remotes/net/main] %

This one's a little more obviously Qualcomm specific.. but yeah. Sorry
for the obvious question, was talking to Sagar offline and realized I
didn't have a good way to tell him how to figure that out other than dig
through lkml, so just asking directly here!

Thanks,
Andrew