This is a note to let you know that I've just added the patch titled
selftests/powerpc/pmu: Fix sample field check in the mmcra_thresh_marked_sample_test
to the 6.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
selftests-powerpc-pmu-fix-sample-field-check-in-the-.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e5f854cab0eb0acd698a3000d371a2bc74393d1a
Author: Kajol Jain <kjain@xxxxxxxxxxxxx>
Date: Wed Mar 1 22:39:17 2023 +0530
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 <dcb314@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/DB6P189MB0568CF002762C6C43AF6DF169CA89@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Signed-off-by: Kajol Jain <kjain@xxxxxxxxxxxxx>
Signed-off-by: Michael Ellerman <mpe@xxxxxxxxxxxxxx>
Link: https://msgid.link/20230301170918.69176-1-kjain@xxxxxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
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 022cc1655eb52..75527876ad3c1 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));
