Re: [PATCH] PM / sleep: add configurable delay for pm_test

From: Florian Fainelli
Date: Sat Feb 21 2015 - 17:56:53 EST

2015-02-21 12:32 GMT-08:00 Pavel Machek <pavel@xxxxxx>:
>> Considering that Brian's change are enclosed within a CONFIG_PM_DEBUG
>> ifdef, can we really use the code bloat as a technical argument here?
> Yes.

Help me understand a few things here:

- this particular change is enclosed within a debug option, so only
people interested in enabling PM_DEBUG will get access to it

- if we need to turn on PM_DEBUG all the time, including mainline
distributions, does that mean that:
- portions of code existing only in PM_DEBUG should be
moved out of it because it is actually useful outside of debug option?
- CONFIG_PM itself is not self sufficient and there are
still problems that require PM_DEBUG to be turned on?
- should there be a second level debug option (e.g:
CONFIG_PM_DEBUG_ADV) which gates specific control knobs like PM delay?

The current 5 seconds delay is completely arbitrary and goes against
the principle of not enforcing a policy, having this configurable
brings this back in the mechanism principle.
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