linux-kernel - Re: [PATCH 13/15] USB: ehci: make orion and mxc bus glues coexist

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Message-Id: <201301221538.55975.arnd@arndb.de>
Date:	Tue, 22 Jan 2013 15:38:55 +0000
From:	Arnd Bergmann <arnd@...db.de>
To:	Alan Stern <stern@...land.harvard.edu>
Cc:	Manjunath Goudar <manjunath.goudar@...aro.org>, balbi@...com,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	arm@...nel.org, "Greg Kroah-Hartman" <gregkh@...uxfoundation.org>,
	linux-usb@...r.kernel.org, Shawn Guo <shawn.guo@...aro.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Jason Cooper <jason@...edaemon.net>,
	Andrew Lunn <andrew@...n.ch>,
	Gregory Clement <gregory.clement@...e-electrons.com>
Subject: Re: [PATCH 13/15] USB: ehci: make orion and mxc bus glues coexist

On Tuesday 22 January 2013, Alan Stern wrote:
> In order to prevent this, you have to make sure that each glue driver
> depends on USB_ARCH_HAS_EHCI.  A simple way to do this is to surround
> the Kconfig entries for those drivers with "if USB && 
> USB_ARCH_HAS_EHCI" ... "endif".

I was actually thinking we could remove the use of USB_ARCH_HAS_EHCI
as well once we have inverted the logic for selecting USB_EHCI_HCD,
but there is another problem with that, because then we still need
something to select USB_ARCH_HAS_HCD, or kill that symbol as well.

	Arnd
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