redonkable
/
remarkable-linux
1
0
Fork 0
Code Releases Activity

powerpc/perf: Fix pmu_count to count only nest imc pmus 

[ Upstream commit de34787f10 ]

"pmu_count" in opal_imc_counters_probe() is intended to hold
the number of successful nest imc pmu registerations. But
current code also counts other imc units like core_imc and
thread_imc. Patch add a check to count only nest imc pmus.

Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
pull/10/head
Madhavan Srinivasan 2017-11-22 10:45:38 +05:30 committed by Greg Kroah-Hartman
parent 394d0c93b9
commit 86d1d015fe
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
arch/powerpc/platforms/powernv/opal-imc.c
View File

@ -191,8 +191,10 @@ static int opal_imc_counters_probe(struct platform_device *pdev)
break;
}
if (!imc_pmu_create(imc_dev, pmu_count, domain))
pmu_count++;
if (!imc_pmu_create(imc_dev, pmu_count, domain)) {
if (domain == IMC_DOMAIN_NEST)
pmu_count++;
}
}
return 0;