[PATCH v3] fpga: dfl: fme: Fix cpu hotplug issue in performance reporting

[Moritz Fischer]

On Mon, Aug 02, 2021 at 01:15:00PM +0530, kajoljain wrote:
> 
> 
> On 7/13/21 1:12 PM, Kajol Jain wrote:
> > The performance reporting driver added cpu hotplug
> > feature but it didn't add pmu migration call in cpu
> > offline function.
> > This can create an issue incase the current designated
> > cpu being used to collect fme pmu data got offline,
> > as based on current code we are not migrating fme pmu to
> > new target cpu. Because of that perf will still try to
> > fetch data from that offline cpu and hence we will not
> > get counter data.
> > 
> > Patch fixed this issue by adding pmu_migrate_context call
> > in fme_perf_offline_cpu function.
> > 
> > Fixes: 724142f8c42a ("fpga: dfl: fme: add performance reporting support")
> > Tested-by: Xu Yilun <yilun.xu at intel.com>
> > Acked-by: Wu Hao <hao.wu at intel.com>
> > Signed-off-by: Kajol Jain <kjain at linux.ibm.com>
> > Cc: stable at vger.kernel.org
> > ---
> 
> Any update on this patch? Please let me know if any changes required.
> 
> Thanks,
> Kajol Jain

It's in my 'fixes' branch.

- Moritz