linux-kernel - Re: linux-next: Tree for Oct 31 (ehci, dbgp)

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Date:	Thu, 1 Nov 2012 11:28:35 -0400 (EDT)
From:	Alan Stern <stern@...land.harvard.edu>
To:	Jan Beulich <JBeulich@...e.com>,
	Randy Dunlap <rdunlap@...radead.org>
cc:	Stephen Rothwell <sfr@...b.auug.org.au>,
	<linux-next@...r.kernel.org>,
	Kernel development list <linux-kernel@...r.kernel.org>,
	USB list <linux-usb@...r.kernel.org>
Subject: Re: linux-next: Tree for Oct 31 (ehci, dbgp)

On Wed, 31 Oct 2012, Randy Dunlap wrote:

> On 10/30/2012 11:26 PM, Stephen Rothwell wrote:
> 
> > Hi all,
> > 
> > Changes since 20121030:
> > 
> 
> 
> on x86_64:
> 
> drivers/built-in.o: In function `ehci_reset':
> host.c:(.text+0x542a7e): undefined reference to `dbgp_reset_prep'
> host.c:(.text+0x542b75): undefined reference to `dbgp_external_startup'
> drivers/built-in.o: In function `ehci_bus_resume':
> host.c:(.text+0x544705): undefined reference to `dbgp_reset_prep'
> host.c:(.text+0x544731): undefined reference to `dbgp_external_startup'

Jan:

We all forgot about the chipidea driver.  It includes code from 
ehci-hcd in a rather unorthodox manner (see 
drivers/usb/chipidea/host.c).

Evidently we need to change your new test in
drivers/usb/early/ehci-dbgp.c to:

#if IS_ENABLED(CONFIG_USB_HCD_EHCI) || defined(CONFIG_USB_CHIPIDEA_HOST)

Upcoming changes to ehci-hcd will make this unnecessary in 3.8, but for 
now we need it.

Alan Stern

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