linux-kernel - Re: [PATCH] USB: host: st: fix ehci/ohci driver selection

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Date:	Mon, 29 Sep 2014 09:39:23 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Arnd Bergmann <arnd@...db.de>
cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Peter Griffin <peter.griffin@...aro.org>,
	<linux-usb@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH] USB: host: st: fix ehci/ohci driver selection

On Mon, 29 Sep 2014, Arnd Bergmann wrote:

> The newly added sti ehci and ohci drivers come with a single
> Kconfig entry that does not depend on either of the base drivers,
> which leads to a link error when they are disabled:
> 
> drivers/built-in.o: In function `ohci_platform_init':
> :(.init.text+0x14788): undefined reference to `ohci_init_driver'
> 
> To fix that, this patch introduces two separate Kconfig options
> with proper dependencies, which avoids the problem and is also
> more consistent with the other glue drivers.

Not to mention that the patch places the new Kconfig options inside the 
appropriate "if" blocks.

> Signed-off-by: Arnd Bergmann <arnd@...db.de>
> Fixes: d115837259ada ("usb: host: ohci-st: Add OHCI driver support for ST STB devices")
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
> Cc: Peter Griffin <peter.griffin@...aro.org>
> Cc: Alan Stern <stern@...land.harvard.edu>
> Cc: linux-usb@...r.kernel.org

Acked-by: Alan Stern <stern@...land.harvard.edu>

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