linux-kernel - Re: linux-next: build failure after merge of the mfd tree

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Date:	Mon, 21 May 2012 09:30:47 +0100
From:	Lee Jones <lee.jones@...aro.org>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
CC:	Samuel Ortiz <sameo@...ux.intel.com>, linux-next@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: linux-next: build failure after merge of the mfd tree

> After merging the mfd tree, today's linux-next build (x86_64 allmodconfig)
> failed like this:
>
> In file included from drivers/mfd/ab8500-core.c:21:0:
> include/linux/mfd/dbx500-prcmu.h:614:19: error: redefinition of 'prcmu_abb_read'
> include/linux/mfd/db8500-prcmu.h:673:19: note: previous definition of 'prcmu_abb_read' was here
> include/linux/mfd/dbx500-prcmu.h:619:19: error: redefinition of 'prcmu_abb_write'
> include/linux/mfd/db8500-prcmu.h:678:19: note: previous definition of 'prcmu_abb_write' was here
> include/linux/mfd/dbx500-prcmu.h:630:19: error: redefinition of 'prcmu_config_clkout'
> include/linux/mfd/db8500-prcmu.h:643:19: note: previous definition of 'prcmu_config_clkout' was here
> include/linux/mfd/dbx500-prcmu.h:692:20: error: redefinition of 'prcmu_ac_wake_req'
> include/linux/mfd/db8500-prcmu.h:683:20: note: previous definition of 'prcmu_ac_wake_req' was here
> include/linux/mfd/dbx500-prcmu.h:694:20: error: redefinition of 'prcmu_ac_sleep_req'
> include/linux/mfd/db8500-prcmu.h:685:20: note: previous definition of 'prcmu_ac_sleep_req' was here
>
> Caused (exposed?) by commit d28f1db8187d ("mfd: Remove confusing
> ab8500-i2c file and merge into ab8500-core").  I assume that this has
> only had very restricted build testing :-(

I 'believe' that you 'might' be missing MFD_DB8500_PRCMU from your 
config. Can you check this for me please Stephen?

MFD_DB8500_PRCMU is selected by
UX500_SOC_DB8500 is selected by
MACH_MOP500 is selected by
MACH_HREFV60 | MACH_SNOWBALL is selected by
u8500_defconfig

Can I ask how you build the kernel and which defconfig you are using please?

Kind regards,
Lee

-- 
Lee Jones
Linaro ST-Ericsson Landing Team Lead
M: +44 77 88 633 515
Linaro.org │ Open source software for ARM SoCs
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