linux-kernel - Re: Linux 2.6.32.47

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Date:	Tue, 08 Nov 2011 23:40:00 +0100
From:	Jiri Slaby <jslaby@...e.cz>
To:	Ian Campbell <Ian.Campbell@...rix.com>
CC:	Greg KH <gregkh@...e.de>,
	Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
	Jeremy Fitzhardinge <Jeremy.Fitzhardinge@...rix.com>,
	Christoph Biedl <linux-kernel.bfrz@...chmal.in-ulm.de>,
	linux-kernel@...r.kernel.org, stable@...nel.org,
	Jiri Slaby <jirislaby@...il.com>
Subject: Re: Linux 2.6.32.47

On 11/08/2011 08:22 AM, Ian Campbell wrote:
> On Mon, 2011-11-07 at 16:30 -0800, Greg KH wrote:
>> On Tue, Nov 08, 2011 at 12:43:49AM +0100, Christoph Biedl wrote:
>>> Greg KH wrote...
>>>
>>>> I'm announcing the release of the 2.6.32.47 kernel.
>>>
>>> Unfortunately this does not build anymore on ARM (Debian armel):
>>>
>>>    CHK     include/linux/version.h
>>>    SYMLINK include/asm ->  include/asm-arm
>>> make[1]: `include/asm-arm/mach-types.h' is up to date.
>>>    CHK     include/linux/utsrelease.h
>>>    CALL    scripts/checksyscalls.sh
>>>    CHK     include/linux/compile.h
>>>    GEN     .version
>>>    CHK     include/linux/compile.h
>>>    UPD     include/linux/compile.h
>>>    CC      init/version.o
>>>    LD      init/built-in.o
>>>    LD      .tmp_vmlinux1
>>> drivers/built-in.o: In function `sysdev_resume':
>>> ledtrig-default-on.c:(.text+0x2a97c): undefined reference to `irq_pm_syscore_resume'
>>> make: *** [.tmp_vmlinux1] Error 1
>>>
>>>
>>> The most likely culprit is
>>>
>>>      commit 0f12a6ad9fa3a03f2bcee36c9cb704821e244c40
>>>      Author: Ian Campbell<ian.campbell@...rix.com>
>>>      Date:   Mon Oct 3 15:37:00 2011 +0100
>>>
>>> 	genirq: Add IRQF_RESUME_EARLY and resume such IRQs earlier
>>>
>>> as reverting that commit made the error go away.
>>>
>>> The .config used is attached. FWIW, the target system is a DockStar.
>>>
>>> Sorry for not having checked during the review period, I should have
>>> done so.
>>
>> Not good.
>>
>> Ian, Konrad, any thoughts as to how to fix this?
>
> Looks like I got the wrong CONFIG symbol for the function, or more
> importantly the dummy version of it. Sorry about this.
>
> Ian.
>
> 8<--------------------------------------------------------------
>
>> From 33a64cf4a184b47493ef312b08468aca3361e112 Mon Sep 17 00:00:00 2001
> From: Ian Campbell<ian.campbell@...rix.com>
> Date: Tue, 8 Nov 2011 07:19:06 +0000
> Subject: [PATCH] irq: fix build error due to missing irq_pm_syscore_resume
>
> irq_pm_syscore_resume is only available iff CONFIG_PM_SLEEP (kernel/irq/pm.o is
> only built if this is true). Move the definition (and the dummy definition)
> under that umbrella.
>
> Introduced by the backport of upstream 9bab0b7fbaceec47d32db51cd9e59c82fb071f5a
> as 0f12a6ad9fa3a03f2bcee36c9cb704821e244c40.
>
> Signed-off-by: Ian Campbell<ian.campbell@...rix.com>
> Reported-by: Christoph Biedl<linux-kernel.bfrz@...chmal.in-ulm.de>
> Reported-by: Antoine Martin<antoine@...afix.co.uk>
> ---
>   include/linux/interrupt.h |    4 ++--
>   1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
> index c7e1aa5..a65ef60 100644
> --- a/include/linux/interrupt.h
> +++ b/include/linux/interrupt.h
> @@ -199,16 +199,16 @@ extern void enable_irq(unsigned int irq);
>   #ifdef CONFIG_GENERIC_HARDIRQS
>   extern void suspend_device_irqs(void);
>   extern void resume_device_irqs(void);
> -extern void irq_pm_syscore_resume(void);
>   #ifdef CONFIG_PM_SLEEP
>   extern int check_wakeup_irqs(void);
> +extern void irq_pm_syscore_resume(void);
>   #else
>   static inline int check_wakeup_irqs(void) { return 0; }
> +static inline void irq_pm_syscore_resume(void) { };
>   #endif
>   #else
>   static inline void suspend_device_irqs(void) { };
>   static inline void resume_device_irqs(void) { };
> -static inline void irq_pm_syscore_resume(void) { };
>   static inline int check_wakeup_irqs(void) { return 0; }
>   #endif

Hmm, sparc doesn't have generic irqs. So:
drivers/base/sys.c: In function 'sysdev_resume':
drivers/base/sys.c:478: error: implicit declaration of function 
'irq_pm_syscore_resume'

regards,
-- 
js
suse labs
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