linux-kernel - Re: [PATCH 2/3] driver core: add deferring probe reason to devices

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Message-ID: <20181016092537.GC7449@sirena.org.uk>
Date:   Tue, 16 Oct 2018 10:25:37 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Andrzej Hajda <a.hajda@...sung.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        linux-kernel@...r.kernel.org,
        Javier Martinez Canillas <javierm@...hat.com>,
        linux-arm-kernel@...ts.infradead.org, andy.shevchenko@...il.com
Subject: Re: [PATCH 2/3] driver core: add deferring probe reason to
 devices_deferred property

On Tue, Oct 16, 2018 at 09:22:43AM +0200, Andrzej Hajda wrote:
> /sys/kernel/debug/devices_deferred property contains list of deferred devices.
> This list does not contain reason why the driver deferred probe, the patch
> improves it.
> The natural place to set the reason is probe_err function introduced recently,
> ie. if probe_err will be called with -EPROBE_DEFER instead of printk the message
> will be attached to deferred device and printed when user read devices_deferred
> property.

Nice!

Reviewed-by: Mark Brown <broonie@...nel.org>

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