linux-kernel - Re: [PATCH v18 08/15] PCI: endpoint: pci-ep-msi: Add MSI address/data pair mutable check

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Message-ID: <871pt0mpja.ffs@tglx>
Date: Wed, 07 May 2025 17:03:21 +0200
From: Thomas Gleixner <tglx@...utronix.de>
To: Frank Li <Frank.Li@....com>, Kishon Vijay Abraham I <kishon@...nel.org>,
 "Rafael J. Wysocki" <rafael@...nel.org>, Anup Patel
 <apatel@...tanamicro.com>, Kishon Vijay Abraham I <kishon@...nel.org>,
 Marc Zyngier <maz@...nel.org>, Greg Kroah-Hartman
 <gregkh@...uxfoundation.org>, "Rafael J. Wysocki" <rafael@...nel.org>,
 Danilo Krummrich <dakr@...nel.org>, Manivannan Sadhasivam
 <manivannan.sadhasivam@...aro.org>, Krzysztof Wilczyński
 <kw@...ux.com>,
 Kishon Vijay Abraham I <kishon@...nel.org>, Bjorn Helgaas
 <bhelgaas@...gle.com>, Arnd Bergmann <arnd@...db.de>, Shuah Khan
 <shuah@...nel.org>, Richard Zhu <hongxing.zhu@....com>, Lucas Stach
 <l.stach@...gutronix.de>, Lorenzo Pieralisi <lpieralisi@...nel.org>, Rob
 Herring <robh@...nel.org>, Shawn Guo <shawnguo@...nel.org>, Sascha Hauer
 <s.hauer@...gutronix.de>, Pengutronix Kernel Team <kernel@...gutronix.de>,
 Fabio Estevam <festevam@...il.com>, Krzysztof Kozlowski
 <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>
Cc: Niklas Cassel <cassel@...nel.org>, dlemoal@...nel.org, jdmason@...zu.us,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-pci@...r.kernel.org, linux-kselftest@...r.kernel.org,
 imx@...ts.linux.dev, devicetree@...r.kernel.org, Frank Li
 <Frank.Li@....com>
Subject: Re: [PATCH v18 08/15] PCI: endpoint: pci-ep-msi: Add MSI
 address/data pair mutable check

On Mon, Apr 14 2025 at 14:31, Frank Li wrote:
> Some MSI controller change address/data pair when irq_set_affinity().
> Current PCI endpoint can't support this type MSI controller. So add flag
> MSI_FLAG_MUTABLE in include/linux/msi.h and check it when allocate
> doorbell.

This changelog has no relation to the patch.