linux-kernel - Re: [PATCH v2 1/3] PCI: dwc: Fix skipped index 0 in outbound ATU setup

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Message-ID: <alpine.DEB.2.21.2601221806080.6421@angie.orcam.me.uk>
Date: Thu, 22 Jan 2026 18:16:11 +0000 (GMT)
From: "Maciej W. Rozycki" <macro@...am.me.uk>
To: Niklas Cassel <cassel@...nel.org>
cc: Krishna Chaitanya Chundru <krishna.chundru@....qualcomm.com>, 
    Jingoo Han <jingoohan1@...il.com>, Manivannan Sadhasivam <mani@...nel.org>, 
    Lorenzo Pieralisi <lpieralisi@...nel.org>, 
    Krzysztof Wilczyński <kwilczynski@...nel.org>, 
    Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>, 
    Frank Li <Frank.Li@....com>, 
    Serge Semin <Sergey.Semin@...kalelectronics.ru>, linux-pci@...r.kernel.org, 
    linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH v2 1/3] PCI: dwc: Fix skipped index 0 in outbound ATU
 setup

On Thu, 22 Jan 2026, Niklas Cassel wrote:

> Also see my series here:
> https://lore.kernel.org/linux-pci/20260122145411.453291-4-cassel@kernel.org/T/
> 
> That tries to clean up this mess.

 Is your patchset referred meant to replace this one or does it apply on 
top?  Shall I verify yours with my RISC-V HiFive Unmatched system so as to 
determine whether it is as good a fix for the port I/O access regression 
caused by commit f6fd357f7afb ("PCI: dwc: Prepare the driver for enabling 
ECAM mechanism using iATU 'CFG Shift Feature'")?  You don't seem to refer 
to either my issue previously reported or the offending commit.

  Maciej