linux-kernel - Re: [RFC PATCH 1/2] ACPI / PNP: Don't add "enumeration_by

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Message-ID: <20180420130727.GV2173@lahna.fi.intel.com>
Date:   Fri, 20 Apr 2018 16:07:27 +0300
From:   Mika Westerberg <mika.westerberg@...ux.intel.com>
To:     John Garry <john.garry@...wei.com>
Cc:     rjw@...ysocki.net, andriy.shevchenko@...ux.intel.com,
        linux-acpi@...r.kernel.org, lenb@...nel.org,
        lorenzo.pieralisi@....com, linux-kernel@...r.kernel.org,
        arnd@...db.de, graeme.gregory@...aro.org, helgaas@...nel.org,
        linuxarm@...wei.com, z.liuxinliang@...ilicon.com
Subject: Re: [RFC PATCH 1/2] ACPI / PNP: Don't add "enumeration_by_parent"
 devices

On Fri, Apr 20, 2018 at 06:07:25PM +0800, John Garry wrote:
> +	} else {
> +		device->driver_data = dev;

I think this deserves a comment explaining why we (ab)use driver_data
like this.