From c0f49bbb305b7921a62ee8c46485a0325104d910 Mon Sep 17 00:00:00 2001 From: Kajol Jain Date: Wed, 1 Mar 2023 22:39:17 +0530 Subject: [PATCH] selftests/powerpc/pmu: Fix sample field check in the mmcra_thresh_marked_sample_test [ Upstream commit 8a32341cf04ba05974931b4664683c2c9fb84e56 ] The testcase verifies the setting of different fields in Monitor Mode Control Register A (MMCRA). In the current code, EV_CODE_EXTRACT macro is used to extract the "sample" field, which then needs to be further processed to fetch rand_samp_elig and rand_samp_mode bits. But the current code is not passing valid sample field to EV_CODE_EXTRACT macro. Patch addresses this by fixing the input for EV_CODE_EXTRACT. Fixes: 29cf373c5766 ("selftests/powerpc/pmu: Add interface test for mmcra register fields") Reported-by: David Binderman Link: https://lore.kernel.org/r/DB6P189MB0568CF002762C6C43AF6DF169CA89@DB6P189MB0568.EURP189.PROD.OUTLOOK.COM Signed-off-by: Kajol Jain Signed-off-by: Michael Ellerman Link: https://msgid.link/20230301170918.69176-1-kjain@linux.ibm.com Signed-off-by: Sasha Levin --- .../powerpc/pmu/sampling_tests/mmcra_thresh_marked_sample_test.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_thresh_marked_sample_test.c b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_thresh_marked_sample_test.c index 022cc16..7552787 100644 --- a/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_thresh_marked_sample_test.c +++ b/tools/testing/selftests/powerpc/pmu/sampling_tests/mmcra_thresh_marked_sample_test.c @@ -63,9 +63,9 @@ static int mmcra_thresh_marked_sample(void) get_mmcra_thd_stop(get_reg_value(intr_regs, "MMCRA"), 4)); FAIL_IF(EV_CODE_EXTRACT(event.attr.config, marked) != get_mmcra_marked(get_reg_value(intr_regs, "MMCRA"), 4)); - FAIL_IF(EV_CODE_EXTRACT(event.attr.config, sample >> 2) != + FAIL_IF((EV_CODE_EXTRACT(event.attr.config, sample) >> 2) != get_mmcra_rand_samp_elig(get_reg_value(intr_regs, "MMCRA"), 4)); - FAIL_IF(EV_CODE_EXTRACT(event.attr.config, sample & 0x3) != + FAIL_IF((EV_CODE_EXTRACT(event.attr.config, sample) & 0x3) != get_mmcra_sample_mode(get_reg_value(intr_regs, "MMCRA"), 4)); FAIL_IF(EV_CODE_EXTRACT(event.attr.config, sm) != get_mmcra_sm(get_reg_value(intr_regs, "MMCRA"), 4)); -- 2.7.4