diff mbox series

[1/2] powerpc/perf: Fix pmu_count to count only nest imc pmus

Message ID 1511327739-21688-1-git-send-email-maddy@linux.vnet.ibm.com (mailing list archive)
State Accepted
Commit de34787f1096cce38e2590be0013b44418d14546
Headers show
Series [1/2] powerpc/perf: Fix pmu_count to count only nest imc pmus | expand

Commit Message

maddy Nov. 22, 2017, 5:15 a.m. UTC
"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>
---
 arch/powerpc/platforms/powernv/opal-imc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

Comments

Michael Ellerman Nov. 24, 2017, 9:46 a.m. UTC | #1
On Wed, 2017-11-22 at 05:15:38 UTC, Madhavan Srinivasan wrote:
> "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>

Applied to powerpc fixes, thanks.

https://git.kernel.org/powerpc/c/de34787f1096cce38e2590be0013b4

cheers
diff mbox series

Patch

diff --git a/arch/powerpc/platforms/powernv/opal-imc.c b/arch/powerpc/platforms/powernv/opal-imc.c
index 21f6531fae20..b150f4deaccf 100644
--- a/arch/powerpc/platforms/powernv/opal-imc.c
+++ b/arch/powerpc/platforms/powernv/opal-imc.c
@@ -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;