lib/prime_numbers: KUnit test should not select PRIME_NUMBERS

Enabling a (modular) test should not silently enable additional kernel
functionality, as that may increase the attack vector of a produc

lib/prime_numbers: KUnit test should not select PRIME_NUMBERS

Enabling a (modular) test should not silently enable additional kernel
functionality, as that may increase the attack vector of a product.

Fix this by making PRIME_NUMBERS_KUNIT_TEST depend on PRIME_NUMBERS
instead of selecting it.

After this, one can safely enable CONFIG_KUNIT_ALL_TESTS=m to build
modules for all appropriate tests for ones system, without pulling in
extra unwanted functionality, while still allowing a tester to manually
enable PRIME_NUMBERS and this test suite on a system where PRIME_NUMBERS
is not enabled by default. Resurrect CONFIG_PRIME_NUMBERS=m in
tools/testing/selftests/lib/config for the latter use case.

Fixes: 313b38a6ecb46db4 ("lib/prime_numbers: convert self-test to KUnit")
Signed-off-by: Geert Uytterhoeven <[email protected]>
Acked-by: Tamir Duberstein <[email protected]>
Link: https://lore.kernel.org/r/40f8a40eef4930d3ac9febd205bc171eb04e171c.1744641237.git.geert@linux-m68k.org
Signed-off-by: Kees Cook <[email protected]>

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scanf: convert self-test to KUnit

Convert the scanf() self-test to a KUnit test.

In the interest of keeping the patch reasonably-sized this doesn't
refactor the tests into proper parameterized test

scanf: convert self-test to KUnit

Convert the scanf() self-test to a KUnit test.

In the interest of keeping the patch reasonably-sized this doesn't
refactor the tests into proper parameterized tests - it's all one big
test case.

Reviewed-by: David Gow <[email protected]>
Reviewed-by: Petr Mladek <[email protected]>
Tested-by: Petr Mladek <[email protected]>
Signed-off-by: Tamir Duberstein <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Kees Cook <[email protected]>

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printf: convert self-test to KUnit

Convert the printf() self-test to a KUnit test.

In the interest of keeping the patch reasonably-sized this doesn't
refactor the tests into proper parameterized te

printf: convert self-test to KUnit

Convert the printf() self-test to a KUnit test.

In the interest of keeping the patch reasonably-sized this doesn't
refactor the tests into proper parameterized tests - it's all one big
test case.

Signed-off-by: Tamir Duberstein <[email protected]>
Reviewed-by: Petr Mladek <[email protected]>
Tested-by: Petr Mladek <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Kees Cook <[email protected]>

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lib/prime_numbers: convert self-test to KUnit

Extract a private header and convert the prime_numbers self-test to a
KUnit test. I considered parameterizing the test using
`KUNIT_CASE_PARAM` but didn

lib/prime_numbers: convert self-test to KUnit

Extract a private header and convert the prime_numbers self-test to a
KUnit test. I considered parameterizing the test using
`KUNIT_CASE_PARAM` but didn't see how it was possible since the test
logic is entangled with the test parameter generation logic.

Signed-off-by: Tamir Duberstein <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Kees Cook <[email protected]>

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selftests: lib: remove strscpy test

The strscpy test loads test_strscpy module for testing. But test_strscpy
was converted to Kunit (see fixes). Hence remove strscpy.

Fixes: 41eefc46a3a4 ("string:

selftests: lib: remove strscpy test

The strscpy test loads test_strscpy module for testing. But test_strscpy
was converted to Kunit (see fixes). Hence remove strscpy.

Fixes: 41eefc46a3a4 ("string: Convert strscpy() self-test to KUnit")
Signed-off-by: Muhammad Usama Anjum <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>

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selftests: lib: Add wrapper script for test_scanf

Adds a wrapper shell script for the test_scanf module.

Signed-off-by: Richard Fitzgerald <[email protected]>
Reviewed-by: Petr Mladek <pmlad

selftests: lib: Add wrapper script for test_scanf

Adds a wrapper shell script for the test_scanf module.

Signed-off-by: Richard Fitzgerald <[email protected]>
Reviewed-by: Petr Mladek <[email protected]>
Acked-by: Andy Shevchenko <[email protected]>
Signed-off-by: Petr Mladek <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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lib: make a test module with set/clear bit

Test some bit clears/sets to make sure assembly doesn't change, and that
the set_bit and clear_bit functions work and don't cause sparse warnings.

Instruc

lib: make a test module with set/clear bit

Test some bit clears/sets to make sure assembly doesn't change, and that
the set_bit and clear_bit functions work and don't cause sparse warnings.

Instruct Kbuild to build this file with extra warning level -Wextra, to
catch new issues, and also doesn't hurt to build with C=1.

This was used to test changes to arch/x86/include/asm/bitops.h.

In particular, sparse (C=1) was very concerned when the last bit before a
natural boundary, like 7, or 31, was being tested, as this causes sign
extension (0xffffff7f) for instance when clearing bit 7.

Recommended usage:

make defconfig
scripts/config -m CONFIG_TEST_BITOPS
make modules_prepare
make C=1 W=1 lib/test_bitops.ko
objdump -S -d lib/test_bitops.ko
insmod lib/test_bitops.ko
rmmod lib/test_bitops.ko

<check dmesg>, there should be no compiler/sparse warnings and no
error messages in log.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Jesse Brandeburg <[email protected]>
Reviewed-by: Andy Shevchenko <[email protected]>
Cc: Thomas Gleixner <[email protected]>
CcL Ingo Molnar <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Cc: Borislav Petkov <[email protected]>
Cc: Rasmus Villemoes <[email protected]>
Cc: Dan Williams <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Wei Yang <[email protected]>
Cc: Christian Brauner <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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lib: Add test module for strscpy_pad

Add a test module for the new strscpy_pad() function. Tie it into the
kselftest infrastructure for lib/ tests.

Acked-by: Kees Cook <[email protected]>
Sign

lib: Add test module for strscpy_pad

Add a test module for the new strscpy_pad() function. Tie it into the
kselftest infrastructure for lib/ tests.

Acked-by: Kees Cook <[email protected]>
Signed-off-by: Tobin C. Harding <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>

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selftests: lib: add config fragment for bitmap, printf and prime numbers tests

test_bitmap, test_printf and prime_numbers are expected to be built as
modules.

Signed-off-by: Fathi Boudra <fathi.bou

selftests: lib: add config fragment for bitmap, printf and prime numbers tests

test_bitmap, test_printf and prime_numbers are expected to be built as
modules.

Signed-off-by: Fathi Boudra <[email protected]>
Tested-by: Naresh Kamboju <[email protected]>
Signed-off-by: Shuah Khan <[email protected]>

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