[PATCH] ARM: hw_breakpoint: Do not use __cpuinitdata for dbg_cpu_pm_nb

[Dietmar Eggemann]

On 10/04/13 12:26, Bastian Hecht wrote:
> 2013/4/10 Will Deacon <will.deacon at arm.com>:
>> On Wed, Apr 10, 2013 at 11:04:38AM +0100, Bastian Hecht wrote:
>>> We must not declare dbg_cpu_pm_nb as __cpuinitdata as we need it after
>>> system initialization for Suspend and CPUIdle.
>>>
>>> This was done in commit 9a6eb310eaa5336b89a27a0bbb78da4bba35f6f1
>>> ARM: hw_breakpoint: Debug powerdown support for self-hosted debug
>>>
>>> Signed-off-by: Bastian Hecht <hechtb+renesas at gmail.com>
>>
>> Thanks Bastian, I'll take this into my tree.
>>
>> Will
>
> Nice, thanks!
>

Hi Bastian,

thanks for catching this. Is my assumption right that you used an UP kernel?

I didn't catch this error during my Suspend-To-Ram/CPUidle tests because
I tested only on SMP kernels where 'dbg_cpu_pm_nb' is placed into the
.data and not in the .init.data section.


Will, we have the same issue in arch/arm/kernel/perf_event_cpu.c.
Lorenzo is currently working on an appropriate patch.

-- Dietmar

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