On Mon, Dec 11, 2017 at 03:01:39PM -0600, Corey Minyard wrote:

On 12/11/2017 02:20 PM, Julia Cartwright wrote:

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On Mon, Dec 11, 2017 at 01:04:58PM -0600, Corey Minyard wrote:

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Sebastian Andrzej Siewior (2):
        PM / CPU: replace raw_notifier with atomic_notifier (fixup)

This change breaks the compile of 4.1 on ARM (and other things using
kernel/cpu_pm.c).

rcu_irq_enter_irqson() and friends doesn't exist in 4.1.  In fact,
rcu_irq_enter() doesn't even exist.

Sorry I didn't get to testing this earlier, I've been focused on other things.

Thanks!  My current builds apparently don't currently cover CPU_PM
builds, so I didn't see this :(.  Thanks for the report.

v4.1 does contain rcu_irq_enter(), and it looks like what we should be
using in 4.1 instead.

Ah, it does, I looked in the wrong place.

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I'm thinking the below should be okay; I'll be standing up a proper cpu
hotplugging test to give it some runtime.

The below should work.  You'll need an ARM64, ARM or MIPS system with
the proper config settings to exercise this code, though.

Shouldn't be a problem, I've got an ARM64 board that I've been meaning
to integrate into my testing anyway.

Thanks,
   Julia