linux-kernel - Re: [PATCH 14/16] PCI: hv: Switch to msi_create_parent_irq

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Message-ID: <20250705100211.8Lcszko3@linutronix.de>
Date: Sat, 5 Jul 2025 12:02:11 +0200
From: Nam Cao <namcao@...utronix.de>
To: Michael Kelley <mhklinux@...look.com>
Cc: Marc Zyngier <maz@...nel.org>, Thomas Gleixner <tglx@...utronix.de>,
	Lorenzo Pieralisi <lpieralisi@...nel.org>,
	Krzysztof Wilczyński <kwilczynski@...nel.org>,
	Manivannan Sadhasivam <mani@...nel.org>,
	Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Karthikeyan Mitran <m.karthikeyan@...iveil.co.in>,
	Hou Zhiqiang <Zhiqiang.Hou@....com>,
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
	Pali Rohár <pali@...nel.org>,
	"K . Y . Srinivasan" <kys@...rosoft.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	Wei Liu <wei.liu@...nel.org>, Dexuan Cui <decui@...rosoft.com>,
	Joyce Ooi <joyce.ooi@...el.com>, Jim Quinlan <jim2101024@...il.com>,
	Nicolas Saenz Julienne <nsaenz@...nel.org>,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
	Ray Jui <rjui@...adcom.com>, Scott Branden <sbranden@...adcom.com>,
	Ryder Lee <ryder.lee@...iatek.com>,
	Jianjun Wang <jianjun.wang@...iatek.com>,
	Marek Vasut <marek.vasut+renesas@...il.com>,
	Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
	Michal Simek <michal.simek@....com>,
	Daire McNamara <daire.mcnamara@...rochip.com>,
	Nirmal Patel <nirmal.patel@...ux.intel.com>,
	Jonathan Derrick <jonathan.derrick@...ux.dev>,
	Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>,
	"linux-hyperv@...r.kernel.org" <linux-hyperv@...r.kernel.org>,
	"linux-rpi-kernel@...ts.infradead.org" <linux-rpi-kernel@...ts.infradead.org>,
	"linux-mediatek@...ts.infradead.org" <linux-mediatek@...ts.infradead.org>,
	"linux-renesas-soc@...r.kernel.org" <linux-renesas-soc@...r.kernel.org>
Subject: Re: [PATCH 14/16] PCI: hv: Switch to msi_create_parent_irq_domain()

On Sat, Jul 05, 2025 at 11:46:59AM +0200, Nam Cao wrote:
> On Sat, Jul 05, 2025 at 03:51:48AM +0000, Michael Kelley wrote:
> > From: Nam Cao <namcao@...utronix.de> Sent: Thursday, June 26, 2025 7:48 AM
> > > 
> > > Move away from the legacy MSI domain setup, switch to use
> > > msi_create_parent_irq_domain().
> > 
> > With the additional tweak to this patch that you supplied separately,
> > everything in my testing on both x86 and arm64 seems to work OK. So
> > that's all good.
>
> Thanks so much for examining the patch,

Btw, you probably would also be interested in
https://lore.kernel.org/lkml/cover.1751277765.git.namcao@linutronix.de/

which does a similar conversion for the other hyperv driver.

Nam