[PATCH 4.9 127/130] selftest/powerpc: Wrong PMC initialized in pmc56_overflow test

From: Greg Kroah-Hartman
Date: Tue Jan 24 2017 - 03:06:06 EST


4.9-stable review patch. If anyone has any objections, please let me know.

------------------

From: Madhavan Srinivasan <maddy@xxxxxxxxxxxxxxxxxx>

commit df21d2fa733035e4d414379960f94b2516b41296 upstream.

Test uses PMC2 to count the event. But PMC1 is being initialized.
Patch to fix it.

Fixes: 3752e453f6ba ('selftests/powerpc: Add tests of PMU EBBs')
Signed-off-by: Madhavan Srinivasan <maddy@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

--- a/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c
+++ b/tools/testing/selftests/powerpc/pmu/ebb/pmc56_overflow_test.c
@@ -66,7 +66,7 @@ int pmc56_overflow(void)

FAIL_IF(ebb_event_enable(&event));

- mtspr(SPRN_PMC1, pmc_sample_period(sample_period));
+ mtspr(SPRN_PMC2, pmc_sample_period(sample_period));
mtspr(SPRN_PMC5, 0);
mtspr(SPRN_PMC6, 0);