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SubjectRe: [PATCH v9 05/17] ARM: tegra: Propagate error from tegra_idle_lp2_last()
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21.02.2020 18:16, Daniel Lezcano пишет:
> On Thu, Feb 13, 2020 at 02:51:22AM +0300, Dmitry Osipenko wrote:
>> Technically cpu_suspend() may fail and it's never good to lose information
>> about failure. For example things like cpuidle core could correctly sample
>> idling time in the case of failure.
>>
>> Acked-by: Peter De Schrijver <pdeschrijver@nvidia.com>
>> Tested-by: Peter Geis <pgwipeout@gmail.com>
>> Tested-by: Jasper Korten <jja2000@gmail.com>
>> Tested-by: David Heidelberg <david@ixit.cz>
>> Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
>> ---
>
> [ ... ]
>
>> cpu_cluster_pm_enter();
>> suspend_cpu_complex();
>>
>> - cpu_suspend(PHYS_OFFSET - PAGE_OFFSET, &tegra_sleep_cpu);
>> + err = cpu_suspend(PHYS_OFFSET - PAGE_OFFSET, &tegra_sleep_cpu);
>>
>> /*
>> * Resume L2 cache if it wasn't re-enabled early during resume,
>> @@ -208,6 +210,8 @@ void tegra_idle_lp2_last(void)
>>
>> restore_cpu_complex();
>
> If the cpu_suspend fails, does restore_cpu_complex() need to be called ?

Yes, because suspend_cpu_complex() didn't fail. I don't see any reason
why restore_cpu_complex() shouldn't be called, please clarify yours thought.

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