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When step_after_suspend_test is skipped because of unmet dependencies
and/or unsupported configuration, it exits with error which is treated
as a fail by the Kselftest framework. This leads to false negative result
even when the test could not be run.
Change it to return kselftest skip code when a test gets skipped to clearly
report that the test could not be run.
Change it to use ksft_exit_skip() when a non-root user runs the test and
add an explicit check for root and a clear message, instead of failing
the test when /sys/power/state file open fails.
Signed-off-by: Shuah Khan (Samsung OSG) <shuah@kernel.org>
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Use ksft_* var arg msg to include strerror() info. in test output and
simplify test_result and exit_* using var arg msg api.
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Make the three tests that did use the old ksft_ext_skip()
(breakpoints/breakpoint_test_arm64, breakpoints/step_after_suspend_test,
and membarrier_test) use the new one, with an output for the
reason for skipping all the tests.
Signed-off-by: Paul Elder <paul.elder@pitt.edu>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Make the step_after_suspend test output in the TAP13 format by using the
TAP13 output functions defined in kselftest.h
Signed-off-by: Paul Elder <paul.elder@pitt.edu>
Signed-off-by: Alice Ferrazzi <alice.ferrazzi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Commit e56d82a11617 ("arm64: cpu hotplug: ensure we mask out
CPU_TASKS_FROZEN in notifiers") fixed a long-standing ARM64 bug that
broke single-stepping after a suspend/resume cycle. Add a kernel
selftest to make sure this doesn't regress or affect other platforms.
Signed-off-by: Greg Hackmann <ghackmann@google.com>
Signed-off-by: Shuah Khan <shuahkh@osg.samsung.com>
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Shuah Khan (Samsung OSG)
Shuah Khan
Paul Elder
Greg Hackmann