linux-kernel - Re: [BUILD FAILURE 11/12] Next April 21 : PPC64 randconfig [drivers/usb/host/ohci-hcd.o]

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Date:	Tue, 21 Apr 2009 16:37:10 -0500
From:	Kumar Gala <galak@...nel.crashing.org>
To:	David Brownell <david-b@...bell.net>
Cc:	subrata@...ux.vnet.ibm.com, linux-usb@...r.kernel.org,
	"Linuxppc-dev" <Linuxppc-dev@...abs.org>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	"linux-next" <linux-next@...r.kernel.org>,
	sachinp <sachinp@...ux.vnet.ibm.com>,
	"linux-kernel" <linux-kernel@...r.kernel.org>,
	Alexander Beregalov <a.beregalov@...il.com>
Subject: Re: [BUILD FAILURE 11/12] Next April 21 : PPC64 randconfig [drivers/usb/host/ohci-hcd.o]


On Apr 21, 2009, at 2:03 PM, David Brownell wrote:

> On Tuesday 21 April 2009, Subrata Modak wrote:
>> Observing this for the first time:
>>
>> CC      drivers/usb/host/ohci-hcd.o
>> In file included from drivers/usb/host/ohci-hcd.c:1060:
>> drivers/usb/host/ohci-ppc-of.c:242:2: error: #error "No endianess
>
> Hmm, scripts/get_maintainer.pl doesn't report
> the PPC folk who maintain that file and its
> kbuild infrastructure.
>
> Can we have some PPC folk look at (and fix) this?

The problem is in the drivers/usb/host/Kconfig:

config USB_OHCI_HCD_PPC_OF_BE
         bool "Support big endian HC"
         depends on USB_OHCI_HCD_PPC_OF
         default y
         select USB_OHCI_BIG_ENDIAN_DESC
         select USB_OHCI_BIG_ENDIAN_MMIO

config USB_OHCI_HCD_PPC_OF_LE
         bool "Support little endian HC"
         depends on USB_OHCI_HCD_PPC_OF
         default n
         select USB_OHCI_LITTLE_ENDIAN

Since its feasible to say 'n' to both we get the compile error.  How  
do we enforce having at least one set?

- k
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