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Subject[PATCH 0/4] selftests, sysctl, lib: Fix prime_numbers and sysctl test to run

Recently, I found some tests were always skipped.
Here is a series of patches to fix those issues.

The prime_numbers test is skipped in some cases because
prime_numbers.ko is not always compiled.
Since the CONFIG_PRIME_NUMBERS is not independently
configurable item (it has no title and help), it is enabled
only if other configs (DRM_DEBUG_SELFTEST etc.) select it.

To fix this issue, I added a title and help for

The sysctl test is skipped because
- selftests/sysctl/config requires CONFIG_TEST_SYSCTL=y. But
since lib/test_sysctl.c doesn't use module_init(), the
test_syscall is not listed under /sys/module/ and the
test script gives up.
- Even if we make CONFIG_TEST_SYSCTL=m, the test script checks
/sys/modules/test_sysctl before loading module and gives up.
- Ayway, since the test module introduces useless sysctl
interface to the kernel, it would better be a module.

This series includes fixes for above 3 points.
- Fix lib/test_sysctl.c to use module_init()
- Fix tools/testing/selftests/sysctl/ to try to load
test module if it is not loaded (nor embedded).
- Fix tools/testing/selftests/sysctl/config to require

Thank you,


Masami Hiramatsu (4):
lib: Make prime number generator independently selectable
lib: Make test_sysctl initialized as module
selftests/sysctl: Fix to load test_sysctl module
selftests/sysctl: Make sysctl test driver as a module

lib/math/Kconfig | 7 ++++++-
lib/test_sysctl.c | 2 +-
tools/testing/selftests/sysctl/config | 2 +-
tools/testing/selftests/sysctl/ | 13 ++-----------
4 files changed, 10 insertions(+), 14 deletions(-)

Masami Hiramatsu (Linaro) <>

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