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Message-ID: <20191003112618.GA2420393@kroah.com>
Date:   Thu, 3 Oct 2019 13:26:18 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     John Stultz <john.stultz@...aro.org>
Cc:     lkml <linux-kernel@...r.kernel.org>, Yu Chen <chenyu56@...wei.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Suzuki K Poulose <suzuki.poulose@....com>,
        Chunfeng Yun <chunfeng.yun@...iatek.com>,
        Felipe Balbi <balbi@...nel.org>,
        Hans de Goede <hdegoede@...hat.com>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        Jun Li <lijun.kernel@...il.com>,
        Valentin Schneider <valentin.schneider@....com>,
        linux-usb@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [RFC][PATCH 2/3] usb: roles: Add usb role switch notifier.

On Wed, Oct 02, 2019 at 11:16:16PM +0000, John Stultz wrote:
> From: Yu Chen <chenyu56@...wei.com>
> 
> This patch adds notifier for drivers want to be informed of the usb role
> switch.

Ick, I hate notifiers, they always come back to cause problems.

What's just wrong with a "real" call to who ever needs to know this?
And who does need to know this anyway?  Like Hans said, if we don't have
a user for it, we should not add it.

thanks,

greg k-h

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