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From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: John Stultz <john.stultz@linaro.org>
Cc: lkml <linux-kernel@vger.kernel.org>,
	Yu Chen <chenyu56@huawei.com>, Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	Chunfeng Yun <chunfeng.yun@mediatek.com>,
	Felipe Balbi <balbi@kernel.org>,
	Hans de Goede <hdegoede@redhat.com>,
	Andy Shevchenko <andy.shevchenko@gmail.com>,
	Jun Li <lijun.kernel@gmail.com>,
	Valentin Schneider <valentin.schneider@arm.com>,
	linux-usb@vger.kernel.org, devicetree@vger.kernel.org
Subject: Re: [RFC][PATCH 2/3] usb: roles: Add usb role switch notifier.
Date: Thu, 3 Oct 2019 13:26:18 +0200	[thread overview]
Message-ID: <20191003112618.GA2420393@kroah.com> (raw)
In-Reply-To: <20191002231617.3670-3-john.stultz@linaro.org>

On Wed, Oct 02, 2019 at 11:16:16PM +0000, John Stultz wrote:
> From: Yu Chen <chenyu56@huawei.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

  parent reply	other threads:[~2019-10-03 11:26 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-02 23:16 [RFC][PATCH 0/3] dwc3 role-switch handling for HiKey960 John Stultz
2019-10-02 23:16 ` [RFC][PATCH 1/3] dt-bindings: usb: generic: Add role-switch-default-host binding John Stultz
2019-10-02 23:16 ` [RFC][PATCH 2/3] usb: roles: Add usb role switch notifier John Stultz
2019-10-03  9:25   ` Hans de Goede
2019-10-03 20:37     ` John Stultz
2019-10-03 20:51       ` Hans de Goede
2019-10-04  8:12         ` Heikki Krogerus
2019-10-15  5:39         ` John Stultz
2019-10-16  7:27           ` Hans de Goede
2019-10-18  5:55             ` John Stultz
2019-10-18  8:06               ` Hans de Goede
2019-10-18 18:39                 ` John Stultz
2019-10-18 19:30                   ` Hans de Goede
2019-10-18 19:53                     ` John Stultz
2019-10-18 19:59                       ` Hans de Goede
2019-10-18 20:12                         ` John Stultz
2019-10-18 20:21                           ` Hans de Goede
2019-10-18 20:37                             ` John Stultz
2019-10-18 21:05                               ` Hans de Goede
2019-10-22  5:58                                 ` John Stultz
2019-11-14 10:11                                   ` Hans de Goede
2019-11-15  0:23                                     ` John Stultz
2019-10-16  9:10           ` Hans de Goede
2019-10-03 11:26   ` Greg Kroah-Hartman [this message]
2019-10-03 20:45     ` John Stultz
2019-10-03 20:56       ` Hans de Goede
2019-10-03 21:33         ` John Stultz
2019-10-06 15:22           ` Hans de Goede
2019-10-15  7:03             ` John Stultz
2019-10-04  8:00         ` Heikki Krogerus
2019-10-02 23:16 ` [RFC][PATCH 3/3] usb: dwc3: Registering a role switch in the DRD code John Stultz
2019-10-15  8:25   ` Roger Quadros
2019-10-15 19:10     ` John Stultz
2019-10-16  9:24       ` Roger Quadros

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