linux-kernel - Re: [PATCH v1 0/3] introduce priority-based shutdown support

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Message-ID: <ZWC/hKav0JANhWKM@finisterre.sirena.org.uk>
Date:   Fri, 24 Nov 2023 15:21:40 +0000
From:   Mark Brown <broonie@...nel.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Oleksij Rempel <o.rempel@...gutronix.de>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Ulf Hansson <ulf.hansson@...aro.org>, kernel@...gutronix.de,
        linux-kernel@...r.kernel.org, linux-mmc@...r.kernel.org,
        linux-pm@...r.kernel.org,
        Søren Andersen <san@...v.dk>
Subject: Re: [PATCH v1 0/3] introduce priority-based shutdown support

On Fri, Nov 24, 2023 at 03:05:47PM +0000, Greg Kroah-Hartman wrote:

> Anyway, this is ripe for problems and issues in the long-run, what is so
> special about this hardware that it can not just shutdown in the
> existing order that it has to be "first" over everyone else?  What
> exactly does this prevent and what devices are requiring this?

> And most importantly, what has changed in the past 20+ years to
> suddenly require this new functionality and how does any other operating
> system handle it?

This came out of some discussions about trying to handle emergency power
failure notifications.

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