linux-kernel - Re: [PATCH v9 6/7] PCI: dwc: ep: Ensure proper iteration over outbound map windows

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Message-ID: <20250227001211.GA566164@bhelgaas>
Date: Wed, 26 Feb 2025 18:12:11 -0600
From: Bjorn Helgaas <helgaas@...nel.org>
To: Frank Li <Frank.Li@....com>
Cc: Rob Herring <robh@...nel.org>, Saravana Kannan <saravanak@...gle.com>,
	Jingoo Han <jingoohan1@...il.com>,
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kw@...ux.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	Richard Zhu <hongxing.zhu@....com>,
	Lucas Stach <l.stach@...gutronix.de>,
	Shawn Guo <shawnguo@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, imx@...ts.linux.dev,
	Niklas Cassel <cassel@...nel.org>
Subject: Re: [PATCH v9 6/7] PCI: dwc: ep: Ensure proper iteration over
 outbound map windows

On Tue, Jan 28, 2025 at 05:07:39PM -0500, Frank Li wrote:
> Most systems' PCIe outbound map windows have non-zero physical addresses,
> but the possibility of encountering zero increased with commit
> 700cafbb642b ("PCI: dwc: ep: Add bus_addr_base for outbound window").

I don't know what commit 700cafbb642b is.  It doesn't appear
upstream, and there's no subject line or patch match for
bus_addr_base.

Bjorn