Re: [PATCH] cpufreq: create link to policy only for registered CPUs

From: Russell King - ARM Linux
Date: Fri Sep 09 2016 - 08:54:14 EST


On Fri, Sep 09, 2016 at 05:04:59PM +0530, Viresh Kumar wrote:
> On 09-09-16, 12:28, Russell King - ARM Linux wrote:
> > On Fri, Sep 09, 2016 at 04:52:04PM +0530, Viresh Kumar wrote:
> > > Thanks for testing it.. You need another patch from Rafael, which
> > > should be in linux-next by now..
> > >
> > > commit 3689ad7ed6a8 ("cpufreq: Drop unnecessary check from
> > > cpufreq_policy_alloc()")
> > >
> > > Both patches combined will fix the problem you were getting.
> >
> > Please send me this other patch. Seems absurd to fix a reported problem
> > without copying appropriate patches to the reporter...
>
> It got merged separately, and yes you should have been cc'd for that
> as well.
>
> Please find it attached now..

Thanks, the warning is now gone. From what I can tell, the sysfs
contents looks correct:

/sys/devices/system/cpu
|-- cpu0
| |-- cpufreq -> ../cpufreq/policy0
| |-- power
| | |-- autosuspend_delay_ms
| | |-- control
| | |-- runtime_active_time
| | |-- runtime_status
| | `-- runtime_suspended_time
| |-- subsystem -> ../../../../bus/cpu
| |-- topology
| | |-- core_id
| | |-- core_siblings
| | |-- core_siblings_list
| | |-- physical_package_id
| | |-- thread_siblings
| | `-- thread_siblings_list
| `-- uevent
|-- cpufreq
| `-- policy0
| |-- affected_cpus
| |-- cpuinfo_cur_freq
| |-- cpuinfo_max_freq
| |-- cpuinfo_min_freq
| |-- cpuinfo_transition_latency
| |-- related_cpus
| |-- scaling_available_governors
| |-- scaling_cur_freq
| |-- scaling_driver
| |-- scaling_governor
| |-- scaling_max_freq
| |-- scaling_min_freq
| |-- scaling_setspeed
| `-- stats
| |-- time_in_state
| `-- total_trans
|-- isolated
|-- kernel_max
|-- offline
|-- online
|-- possible
|-- power
| |-- autosuspend_delay_ms
| |-- control
| |-- runtime_active_time
| |-- runtime_status
| `-- runtime_suspended_time
|-- present
`-- uevent

9 directories, 39 files

So, for both patches:

Tested-by: Russell King <rmk+kernel@xxxxxxxxxxxxxxxx>

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