Re: [PATCH v4 1/1] PM / OPP: Fix get sharing cpus when hotplug is used

[Viresh Kumar <viresh.kumar@linaro.org>]

On 27-07-17, 09:25, Waldemar Rymarkiewicz wrote:
> On 27 July 2017 at 02:03, Rafael J. Wysocki <rjw@rjwysocki.net> wrote:
> > On Wednesday, July 26, 2017 02:11:38 PM Waldemar Rymarkiewicz wrote:
> >> We fail dev_pm_opp_of_get_sharing_cpus() when possible cpu device does not
> >> exist. This can happen on platforms where not all possible CPUs are
> >> available at start up ie. hotplugged out. Cpu device is not registered in
> >> the system so we are not able to check struct device to set the sharing
> >> CPUs bitmask properly.
> >>
> >> Example (real use case):
> >> 2 physical MIPS cores, 4 VPE, cpu0/2 run Linux and cpu1/3 are not available
> >> for Linux at boot up. cpufreq-dt driver + opp v2 fail to register opp_table
> >> due to the fact there is no struct device for cpu1 (remains offline at
> >> bootup).
> >>
> >> To solve the bug, stop using device struct to check device_node. Instead
> >> get cpu device_node directly from device tree with of_get_cpu_node().
> >>
> >> Signed-off-by: Waldemar Rymarkiewicz <waldemarx.rymarkiewicz@intel.com>
> >> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
> >> Reviewed-by: Stephen Boyd <sboyd@codeaurora.org>
> >
> > Please fix the build issue reported by 0-day introduced by this patch.
> 
> Where can I find the report? I did not receive anything.

It was sent to your email id:
Waldemar Rymarkiewicz <waldemarx.rymarkiewicz@intel.com>

Here is the link:

http://marc.info/?l=linux-pm&m=150110740706429&w=2

-- 
viresh