linux-kernel - Re: [PATCH] [v2] irqchip: build IMX_MU

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Message-ID: <87o6ssetn8.ffs@tglx>
Date: Wed, 06 Aug 2025 10:33:47 +0200
From: Thomas Gleixner <tglx@...utronix.de>
To: Arnd Bergmann <arnd@...nel.org>, Marc Zyngier <maz@...nel.org>, Frank Li
 <Frank.Li@....com>
Cc: Arnd Bergmann <arnd@...db.de>, Nam Cao <namcao@...utronix.de>, Lorenzo
 Pieralisi <lpieralisi@...nel.org>, Nicolas Frayer <nfrayer@...libre.com>,
 Geert Uytterhoeven <geert+renesas@...der.be>, Stanimir Varbanov
 <svarbanov@...e.de>, Inochi Amaoto <inochiama@...il.com>, Chen Wang
 <unicorn_wang@...look.com>, Lukas Bulwahn <lukas.bulwahn@...hat.com>,
 Vladimir Kondratiev <vladimir.kondratiev@...ileye.com>, Peter Robinson
 <pbrobinson@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] [v2] irqchip: build IMX_MU_MSI only on ARM

On Tue, Aug 05 2025 at 18:09, Arnd Bergmann wrote:
> It seems to be a recurring problem wiht x86 not using CONFIG_GENERIC_MSI_IRQ,
> while all other architectures do. I wonder if that is something that
> should be changed by changing the x86 irqchip implementation so that
> CONFIG_GENERIC_MSI_IRQ can become the only way to do MSI.

Ideally yes. That needs quite some surgery and I didn't have the time,
urge and stomach to tackle it yet. Let me have a look again.