[PATCH 1/9] ARM: get rid of arch_cpu_idle_prepare()

Daniel Lezcano daniel.lezcano at linaro.org
Tue Jan 28 04:30:46 EST 2014

On 01/27/2014 06:21 PM, Russell King - ARM Linux wrote:
> On Mon, Jan 27, 2014 at 06:12:53PM +0100, Daniel Lezcano wrote:
>> On 01/27/2014 05:07 PM, Russell King - ARM Linux wrote:
>>> On Mon, Jan 27, 2014 at 09:22:55AM +0100, Daniel Lezcano wrote:
>>>> On 01/27/2014 07:08 AM, Nicolas Pitre wrote:
>>>>> ARM and ARM64 are the only two architectures implementing
>>>>> arch_cpu_idle_prepare() simply to call local_fiq_enable().
>>>>> We have secondary_start_kernel() already calling local_fiq_enable() and
>>>>> this is done a second time in arch_cpu_idle_prepare() in that case. And
>>>>> enabling FIQs has nothing to do with idling the CPU to start with.
>>>>> So let's introduce init_fiq_boot_cpu() to take care of FIQs on the boot
>>>>> CPU and remove arch_cpu_idle_prepare(). This is now done a bit earlier
>>>>> at late_initcall time but this shouldn't make a difference in practice
>>>>> i.e. when FIQs are actually used.
>>>>> Signed-off-by: Nicolas Pitre <nico at linaro.org>
>>>> Reviewed-by: Daniel Lezcano <daniel.lezcano at linaro.org>
>>> What kind of review did you do when giving that attributation?
>> I did the review to the best of my knowledge and with good will.
>> I read your comment on this patch and I learnt one more thing.
>> Today, I am smarter than yesterday and dumber than tomorrow :)
> Just be aware that putting a comment along with the reviewed-by tag
> is always a good idea.  I know that's a little more work, but this has
> been raised a number of times by various people over the years.
> A reviewed-by tag on its own doesn't mean much, as it could mean that
> you've just glanced over the code and decided "yea, it looks okay", or
> it could mean that you've spent all day verifying that the code change
> is indeed correct.
> Consequently, some will ignore emails which just contain a reviewed-by
> attributation.

Thanks for the clarification. I will take care of giving a comment next 

   -- Daniel

  <http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs

Follow Linaro:  <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog

More information about the Linuxppc-dev mailing list