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Date: Mon, 10 Oct 2011 09:02:42 +0300
From: Felipe Balbi <balbi@ti.com>
To: Michal Nazarewicz <mnazarewicz@google.com>
Cc: Alan Stern <stern@rowland.harvard.edu>, Felipe Balbi <balbi@ti.com>,
        Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
        Yang Rui Rui <ruirui.r.yang@tieto.com>,
        Dave Young <hidave.darkstar@gmail.com>, linux-usb@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCHv5 4/4] usb: gadget: get rid of
 USB_GADGET_{DUAL,SUPER}SPEED
Message-ID: <20111010060241.GC31707@legolas.emea.dhcp.ti.com>
Reply-To: balbi@ti.com
References: <cover.1314364322.git.mina86@mina86.com>
 <4b5e561ce923ca69b17ecb183e21e2520e977799.1314364323.git.mina86@mina86.com>
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On Fri, Aug 26, 2011 at 03:18:37PM +0200, Michal Nazarewicz wrote:
> From: Michal Nazarewicz <mina86@mina86.com>
>=20
> This commit removes USB_GADGET_DUALSPEED and USB_GADGET_SUPERSPEED
> Kconfig options.  Since now kernel allows many UDC drivers to be
> compiled, those options may turn to no longer be valid.  For
> instance, if someone decides to build UDC that supports super
> speed and UDC that supports high speed only, the latter will be
> "assumed" to support super speed since USB_GADGET_SUPERSPEED will
> be selected by the former.
>=20
> The test of whether CONFIG_USB_GADGET_*SPEED was defined was just
> an optimisation which removed otherwise dead code (ie. if UDC is
> not dual speed, there is no need to handle cases that can happen
> if speed is high).  This commit removes those checks.

and here.

--=20
balbi

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