linux-kernel - Re: [PATCH 03/10] irqchip/gic: Switch to dynamic chip name output

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Message-ID: <CACRpkdZkw1efC5viWwr_72V0K_E+txwxGLzwe=NJV3FEdnGinA@mail.gmail.com>
Date:   Fri, 11 Feb 2022 00:38:49 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Marc Zyngier <maz@...nel.org>
Cc:     linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
        Bartosz Golaszewski <brgl@...ev.pl>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Grygorii Strashko <grygorii.strashko@...com>,
        Santosh Shilimkar <ssantosh@...nel.org>,
        Kevin Hilman <khilman@...nel.org>,
        Tony Lindgren <tony@...mide.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Vladimir Zapolskiy <vz@...ia.com>,
        Andrew Lunn <andrew@...n.ch>,
        Gregory Clement <gregory.clement@...tlin.com>,
        Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
        Emil Renner Berthing <kernel@...il.dk>,
        kernel-team@...roid.com
Subject: Re: [PATCH 03/10] irqchip/gic: Switch to dynamic chip name output

On Wed, Feb 9, 2022 at 5:26 PM Marc Zyngier <maz@...nel.org> wrote:

> The last dynamic aspect of the GIC's irq_chip structure is the
> name that is associated to it.
>
> Move the output of that name to the relevant callback, which
> allows us to do a bit of cleanup and mark the structures const.
>
> Signed-off-by: Marc Zyngier <maz@...nel.org>

Reviewed-by: Linus Walleij <linus.walleij@...aro.org>

This naming was once introduced for the ARM PB11MPCore
that had two cascaded GICs (commit 58b8964990dc6)
so it became a pain to see which one
was being used in /proc/interrupts
arch/arm/boot/dts/arm-realview-pb11mp.dts

I see it is not appreciated to use /proc/interrupts for this
type of diagnostics. Ugh. I suppose people do it for the
same reason they keep using the GPIO sysfs, they like
it and they know it.

Yours,
Linus Walleij