Re: [PATCH] lib: Move KUnit tests into tests/ subdirectory

From: David Gow
Date: Fri Oct 11 2024 - 03:41:37 EST

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On Sun, 21 Jul 2024 at 02:10, Kees Cook <kees@xxxxxxxxxx> wrote:
>
> Following from the recent KUnit file naming discussion[1], move all
> KUnit tests in lib/ into lib/tests/.
>
> Link: https://lore.kernel.org/lkml/20240720165441.it.320-kees@xxxxxxxxxx/ [1]
> Signed-off-by: Kees Cook <kees@xxxxxxxxxx>
> ---
> I can carry this in the hardening tree. To disrupt people as little as
> possible, I'm hoping to send this either at the end of -rc1 or early
> in -rc2.
> Cc: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
> Cc: Yury Norov <yury.norov@xxxxxxxxx>
> Cc: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
> Cc: David Gow <davidgow@xxxxxxxxxx>
> Cc: "Jason A. Donenfeld" <Jason@xxxxxxxxx>
> Cc: Andy Shevchenko <andy@xxxxxxxxxx>
> Cc: "Naveen N. Rao" <naveen.n.rao@xxxxxxxxxxxxx>
> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@xxxxxxxxx>
> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
> Cc: Masami Hiramatsu <mhiramat@xxxxxxxxxx>
> Cc: Mark Brown <broonie@xxxxxxxxxx>
> Cc: Matti Vaittinen <mazziesaccount@xxxxxxxxx>
> Cc: linux-hardening@xxxxxxxxxxxxxxx
> Cc: linux-kselftest@xxxxxxxxxxxxxxx
> Cc: kunit-dev@xxxxxxxxxxxxxxxx
> Cc: linux-trace-kernel@xxxxxxxxxxxxxxx
> ---

I've just rebased this and sent it out as part of a series of renames to Andrew:
https://lore.kernel.org/linux-kselftest/20241011072509.3068328-5-davidgow@xxxxxxxxxx/T/#u

Hopefully this will be a workable way of getting all of the different
renames (and other things entangled with renames) in, but let me know
if it causes problems / if I broke it.

Cheers,
-- David

> MAINTAINERS | 18 ++++++-------
> lib/Makefile | 35 +-----------------------
> lib/tests/Makefile | 37 ++++++++++++++++++++++++++
> lib/{ => tests}/bitfield_kunit.c | 0
> lib/{ => tests}/checksum_kunit.c | 0
> lib/{ => tests}/cmdline_kunit.c | 0
> lib/{ => tests}/cpumask_kunit.c | 0
> lib/{ => tests}/fortify_kunit.c | 0
> lib/{ => tests}/hashtable_test.c | 0
> lib/{ => tests}/is_signed_type_kunit.c | 0
> lib/{ => tests}/kunit_iov_iter.c | 0
> lib/{ => tests}/list-test.c | 0
> lib/{ => tests}/memcpy_kunit.c | 0
> lib/{ => tests}/overflow_kunit.c | 0
> lib/{ => tests}/siphash_kunit.c | 0
> lib/{ => tests}/slub_kunit.c | 0
> lib/{ => tests}/stackinit_kunit.c | 0
> lib/{ => tests}/string_helpers_kunit.c | 0
> lib/{ => tests}/string_kunit.c | 0
> lib/{ => tests}/test_bits.c | 0
> lib/{ => tests}/test_fprobe.c | 0
> lib/{ => tests}/test_hash.c | 0
> lib/{ => tests}/test_kprobes.c | 0
> lib/{ => tests}/test_linear_ranges.c | 0
> lib/{ => tests}/test_list_sort.c | 0
> lib/{ => tests}/test_sort.c | 0
> 26 files changed, 47 insertions(+), 43 deletions(-)
> create mode 100644 lib/tests/Makefile
> rename lib/{ => tests}/bitfield_kunit.c (100%)
> rename lib/{ => tests}/checksum_kunit.c (100%)
> rename lib/{ => tests}/cmdline_kunit.c (100%)
> rename lib/{ => tests}/cpumask_kunit.c (100%)
> rename lib/{ => tests}/fortify_kunit.c (100%)
> rename lib/{ => tests}/hashtable_test.c (100%)
> rename lib/{ => tests}/is_signed_type_kunit.c (100%)
> rename lib/{ => tests}/kunit_iov_iter.c (100%)
> rename lib/{ => tests}/list-test.c (100%)
> rename lib/{ => tests}/memcpy_kunit.c (100%)
> rename lib/{ => tests}/overflow_kunit.c (100%)
> rename lib/{ => tests}/siphash_kunit.c (100%)
> rename lib/{ => tests}/slub_kunit.c (100%)
> rename lib/{ => tests}/stackinit_kunit.c (100%)
> rename lib/{ => tests}/string_helpers_kunit.c (100%)
> rename lib/{ => tests}/string_kunit.c (100%)
> rename lib/{ => tests}/test_bits.c (100%)
> rename lib/{ => tests}/test_fprobe.c (100%)
> rename lib/{ => tests}/test_hash.c (100%)
> rename lib/{ => tests}/test_kprobes.c (100%)
> rename lib/{ => tests}/test_linear_ranges.c (100%)
> rename lib/{ => tests}/test_list_sort.c (100%)
> rename lib/{ => tests}/test_sort.c (100%)
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 8754ac2c259d..3f4b9d007cbb 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -3737,10 +3737,10 @@ F: include/vdso/bits.h
> F: lib/bitmap-str.c
> F: lib/bitmap.c
> F: lib/cpumask.c
> -F: lib/cpumask_kunit.c
> F: lib/find_bit.c
> F: lib/find_bit_benchmark.c
> F: lib/test_bitmap.c
> +F: lib/tests/cpumask_kunit.c
> F: tools/include/linux/bitfield.h
> F: tools/include/linux/bitmap.h
> F: tools/include/linux/bits.h
> @@ -8618,9 +8618,9 @@ L: linux-hardening@xxxxxxxxxxxxxxx
> S: Supported
> T: git git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git for-next/hardening
> F: include/linux/fortify-string.h
> -F: lib/fortify_kunit.c
> -F: lib/memcpy_kunit.c
> F: lib/test_fortify/*
> +F: lib/tests/fortify_kunit.c
> +F: lib/tests/memcpy_kunit.c
> F: scripts/test_fortify.sh
> K: \b__NO_FORTIFY\b
>
> @@ -9246,9 +9246,9 @@ F: include/linux/string.h
> F: include/linux/string_choices.h
> F: include/linux/string_helpers.h
> F: lib/string.c
> -F: lib/string_kunit.c
> F: lib/string_helpers.c
> -F: lib/string_helpers_kunit.c
> +F: lib/tests/string_helpers_kunit.c
> +F: lib/tests/string_kunit.c
> F: scripts/coccinelle/api/string_choices.cocci
>
> GENERIC UIO DRIVER FOR PCI DEVICES
> @@ -12347,7 +12347,7 @@ F: Documentation/trace/kprobes.rst
> F: include/asm-generic/kprobes.h
> F: include/linux/kprobes.h
> F: kernel/kprobes.c
> -F: lib/test_kprobes.c
> +F: lib/tests/test_kprobes.c
> F: samples/kprobes
>
> KS0108 LCD CONTROLLER DRIVER
> @@ -12697,7 +12697,7 @@ M: Mark Brown <broonie@xxxxxxxxxx>
> R: Matti Vaittinen <mazziesaccount@xxxxxxxxx>
> F: include/linux/linear_range.h
> F: lib/linear_ranges.c
> -F: lib/test_linear_ranges.c
> +F: lib/tests/test_linear_ranges.c
>
> LINUX FOR POWER MACINTOSH
> L: linuxppc-dev@xxxxxxxxxxxxxxxx
> @@ -12824,7 +12824,7 @@ M: David Gow <davidgow@xxxxxxxxxx>
> L: linux-kselftest@xxxxxxxxxxxxxxx
> L: kunit-dev@xxxxxxxxxxxxxxxx
> S: Maintained
> -F: lib/list-test.c
> +F: lib/tests/list-test.c
>
> LITEX PLATFORM
> M: Karol Gugala <kgugala@xxxxxxxxxxxx>
> @@ -20498,7 +20498,7 @@ M: Jason A. Donenfeld <Jason@xxxxxxxxx>
> S: Maintained
> F: include/linux/siphash.h
> F: lib/siphash.c
> -F: lib/siphash_kunit.c
> +F: lib/tests/siphash_kunit.c
>
> SIS 190 ETHERNET DRIVER
> M: Francois Romieu <romieu@xxxxxxxxxxxxx>
> diff --git a/lib/Makefile b/lib/Makefile
> index 3b1769045651..f00fe120ee9e 100644
> --- a/lib/Makefile
> +++ b/lib/Makefile
> @@ -49,9 +49,7 @@ obj-y += bcd.o sort.o parser.o debug_locks.o random32.o \
> percpu-refcount.o rhashtable.o base64.o \
> once.o refcount.o rcuref.o usercopy.o errseq.o bucket_locks.o \
> generic-radix-tree.o bitmap-str.o
> -obj-$(CONFIG_STRING_KUNIT_TEST) += string_kunit.o
> obj-y += string_helpers.o
> -obj-$(CONFIG_STRING_HELPERS_KUNIT_TEST) += string_helpers_kunit.o
> obj-y += hexdump.o
> obj-$(CONFIG_TEST_HEXDUMP) += test_hexdump.o
> obj-y += kstrtox.o
> @@ -62,22 +60,17 @@ obj-$(CONFIG_TEST_DHRY) += test_dhry.o
> obj-$(CONFIG_TEST_FIRMWARE) += test_firmware.o
> obj-$(CONFIG_TEST_BITOPS) += test_bitops.o
> CFLAGS_test_bitops.o += -Werror
> -obj-$(CONFIG_CPUMASK_KUNIT_TEST) += cpumask_kunit.o
> obj-$(CONFIG_TEST_SYSCTL) += test_sysctl.o
> -obj-$(CONFIG_TEST_IOV_ITER) += kunit_iov_iter.o
> -obj-$(CONFIG_HASH_KUNIT_TEST) += test_hash.o
> obj-$(CONFIG_TEST_IDA) += test_ida.o
> obj-$(CONFIG_TEST_UBSAN) += test_ubsan.o
> CFLAGS_test_ubsan.o += $(call cc-disable-warning, vla)
> CFLAGS_test_ubsan.o += $(call cc-disable-warning, unused-but-set-variable)
> UBSAN_SANITIZE_test_ubsan.o := y
> obj-$(CONFIG_TEST_KSTRTOX) += test-kstrtox.o
> -obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o
> obj-$(CONFIG_TEST_MIN_HEAP) += test_min_heap.o
> obj-$(CONFIG_TEST_LKM) += test_module.o
> obj-$(CONFIG_TEST_VMALLOC) += test_vmalloc.o
> obj-$(CONFIG_TEST_RHASHTABLE) += test_rhashtable.o
> -obj-$(CONFIG_TEST_SORT) += test_sort.o
> obj-$(CONFIG_TEST_USER_COPY) += test_user_copy.o
> obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_keys.o
> obj-$(CONFIG_TEST_STATIC_KEYS) += test_static_key_base.o
> @@ -104,10 +97,7 @@ obj-$(CONFIG_TEST_MEMINIT) += test_meminit.o
> obj-$(CONFIG_TEST_LOCKUP) += test_lockup.o
> obj-$(CONFIG_TEST_HMM) += test_hmm.o
> obj-$(CONFIG_TEST_FREE_PAGES) += test_free_pages.o
> -obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o
> obj-$(CONFIG_TEST_REF_TRACKER) += test_ref_tracker.o
> -CFLAGS_test_fprobe.o += $(CC_FLAGS_FTRACE)
> -obj-$(CONFIG_FPROBE_SANITY_TEST) += test_fprobe.o
> obj-$(CONFIG_TEST_OBJPOOL) += test_objpool.o
>
> obj-$(CONFIG_TEST_FPU) += test_fpu.o
> @@ -129,7 +119,7 @@ endif
> obj-$(CONFIG_DEBUG_INFO_REDUCED) += debug_info.o
> CFLAGS_debug_info.o += $(call cc-option, -femit-struct-debug-detailed=any)
>
> -obj-y += math/ crypto/
> +obj-y += math/ crypto/ tests/
>
> obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
> obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
> @@ -366,29 +356,6 @@ obj-$(CONFIG_OBJAGG) += objagg.o
> # pldmfw library
> obj-$(CONFIG_PLDMFW) += pldmfw/
>
> -# KUnit tests
> -CFLAGS_bitfield_kunit.o := $(DISABLE_STRUCTLEAK_PLUGIN)
> -obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o
> -obj-$(CONFIG_CHECKSUM_KUNIT) += checksum_kunit.o
> -obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o
> -obj-$(CONFIG_HASHTABLE_KUNIT_TEST) += hashtable_test.o
> -obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o
> -obj-$(CONFIG_BITS_TEST) += test_bits.o
> -obj-$(CONFIG_CMDLINE_KUNIT_TEST) += cmdline_kunit.o
> -obj-$(CONFIG_SLUB_KUNIT_TEST) += slub_kunit.o
> -obj-$(CONFIG_MEMCPY_KUNIT_TEST) += memcpy_kunit.o
> -obj-$(CONFIG_IS_SIGNED_TYPE_KUNIT_TEST) += is_signed_type_kunit.o
> -CFLAGS_overflow_kunit.o = $(call cc-disable-warning, tautological-constant-out-of-range-compare)
> -obj-$(CONFIG_OVERFLOW_KUNIT_TEST) += overflow_kunit.o
> -CFLAGS_stackinit_kunit.o += $(call cc-disable-warning, switch-unreachable)
> -obj-$(CONFIG_STACKINIT_KUNIT_TEST) += stackinit_kunit.o
> -CFLAGS_fortify_kunit.o += $(call cc-disable-warning, unsequenced)
> -CFLAGS_fortify_kunit.o += $(call cc-disable-warning, stringop-overread)
> -CFLAGS_fortify_kunit.o += $(call cc-disable-warning, stringop-truncation)
> -CFLAGS_fortify_kunit.o += $(DISABLE_STRUCTLEAK_PLUGIN)
> -obj-$(CONFIG_FORTIFY_KUNIT_TEST) += fortify_kunit.o
> -obj-$(CONFIG_SIPHASH_KUNIT_TEST) += siphash_kunit.o
> -
> obj-$(CONFIG_GENERIC_LIB_DEVMEM_IS_ALLOWED) += devmem_is_allowed.o
>
> obj-$(CONFIG_FIRMWARE_TABLE) += fw_table.o
> diff --git a/lib/tests/Makefile b/lib/tests/Makefile
> new file mode 100644
> index 000000000000..c6a14cc8663e
> --- /dev/null
> +++ b/lib/tests/Makefile
> @@ -0,0 +1,37 @@
> +# SPDX-License-Identifier: GPL-2.0
> +#
> +# Makefile for tests of kernel library functions.
> +
> +# KUnit tests
> +CFLAGS_bitfield_kunit.o := $(DISABLE_STRUCTLEAK_PLUGIN)
> +obj-$(CONFIG_BITFIELD_KUNIT) += bitfield_kunit.o
> +obj-$(CONFIG_BITS_TEST) += test_bits.o
> +obj-$(CONFIG_CHECKSUM_KUNIT) += checksum_kunit.o
> +obj-$(CONFIG_CMDLINE_KUNIT_TEST) += cmdline_kunit.o
> +obj-$(CONFIG_CPUMASK_KUNIT_TEST) += cpumask_kunit.o
> +CFLAGS_fortify_kunit.o += $(call cc-disable-warning, unsequenced)
> +CFLAGS_fortify_kunit.o += $(call cc-disable-warning, stringop-overread)
> +CFLAGS_fortify_kunit.o += $(call cc-disable-warning, stringop-truncation)
> +CFLAGS_fortify_kunit.o += $(DISABLE_STRUCTLEAK_PLUGIN)
> +obj-$(CONFIG_FORTIFY_KUNIT_TEST) += fortify_kunit.o
> +CFLAGS_test_fprobe.o += $(CC_FLAGS_FTRACE)
> +obj-$(CONFIG_FPROBE_SANITY_TEST) += test_fprobe.o
> +obj-$(CONFIG_HASHTABLE_KUNIT_TEST) += hashtable_test.o
> +obj-$(CONFIG_HASH_KUNIT_TEST) += test_hash.o
> +obj-$(CONFIG_TEST_IOV_ITER) += kunit_iov_iter.o
> +obj-$(CONFIG_IS_SIGNED_TYPE_KUNIT_TEST) += is_signed_type_kunit.o
> +obj-$(CONFIG_KPROBES_SANITY_TEST) += test_kprobes.o
> +obj-$(CONFIG_LIST_KUNIT_TEST) += list-test.o
> +obj-$(CONFIG_TEST_LIST_SORT) += test_list_sort.o
> +obj-$(CONFIG_LINEAR_RANGES_TEST) += test_linear_ranges.o
> +obj-$(CONFIG_MEMCPY_KUNIT_TEST) += memcpy_kunit.o
> +CFLAGS_overflow_kunit.o = $(call cc-disable-warning, tautological-constant-out-of-range-compare)
> +obj-$(CONFIG_OVERFLOW_KUNIT_TEST) += overflow_kunit.o
> +obj-$(CONFIG_SIPHASH_KUNIT_TEST) += siphash_kunit.o
> +obj-$(CONFIG_SLUB_KUNIT_TEST) += slub_kunit.o
> +obj-$(CONFIG_TEST_SORT) += test_sort.o
> +CFLAGS_stackinit_kunit.o += $(call cc-disable-warning, switch-unreachable)
> +obj-$(CONFIG_STACKINIT_KUNIT_TEST) += stackinit_kunit.o
> +obj-$(CONFIG_STRING_KUNIT_TEST) += string_kunit.o
> +obj-$(CONFIG_STRING_HELPERS_KUNIT_TEST) += string_helpers_kunit.o
> +
> diff --git a/lib/bitfield_kunit.c b/lib/tests/bitfield_kunit.c
> similarity index 100%
> rename from lib/bitfield_kunit.c
> rename to lib/tests/bitfield_kunit.c
> diff --git a/lib/checksum_kunit.c b/lib/tests/checksum_kunit.c
> similarity index 100%
> rename from lib/checksum_kunit.c
> rename to lib/tests/checksum_kunit.c
> diff --git a/lib/cmdline_kunit.c b/lib/tests/cmdline_kunit.c
> similarity index 100%
> rename from lib/cmdline_kunit.c
> rename to lib/tests/cmdline_kunit.c
> diff --git a/lib/cpumask_kunit.c b/lib/tests/cpumask_kunit.c
> similarity index 100%
> rename from lib/cpumask_kunit.c
> rename to lib/tests/cpumask_kunit.c
> diff --git a/lib/fortify_kunit.c b/lib/tests/fortify_kunit.c
> similarity index 100%
> rename from lib/fortify_kunit.c
> rename to lib/tests/fortify_kunit.c
> diff --git a/lib/hashtable_test.c b/lib/tests/hashtable_test.c
> similarity index 100%
> rename from lib/hashtable_test.c
> rename to lib/tests/hashtable_test.c
> diff --git a/lib/is_signed_type_kunit.c b/lib/tests/is_signed_type_kunit.c
> similarity index 100%
> rename from lib/is_signed_type_kunit.c
> rename to lib/tests/is_signed_type_kunit.c
> diff --git a/lib/kunit_iov_iter.c b/lib/tests/kunit_iov_iter.c
> similarity index 100%
> rename from lib/kunit_iov_iter.c
> rename to lib/tests/kunit_iov_iter.c
> diff --git a/lib/list-test.c b/lib/tests/list-test.c
> similarity index 100%
> rename from lib/list-test.c
> rename to lib/tests/list-test.c
> diff --git a/lib/memcpy_kunit.c b/lib/tests/memcpy_kunit.c
> similarity index 100%
> rename from lib/memcpy_kunit.c
> rename to lib/tests/memcpy_kunit.c
> diff --git a/lib/overflow_kunit.c b/lib/tests/overflow_kunit.c
> similarity index 100%
> rename from lib/overflow_kunit.c
> rename to lib/tests/overflow_kunit.c
> diff --git a/lib/siphash_kunit.c b/lib/tests/siphash_kunit.c
> similarity index 100%
> rename from lib/siphash_kunit.c
> rename to lib/tests/siphash_kunit.c
> diff --git a/lib/slub_kunit.c b/lib/tests/slub_kunit.c
> similarity index 100%
> rename from lib/slub_kunit.c
> rename to lib/tests/slub_kunit.c
> diff --git a/lib/stackinit_kunit.c b/lib/tests/stackinit_kunit.c
> similarity index 100%
> rename from lib/stackinit_kunit.c
> rename to lib/tests/stackinit_kunit.c
> diff --git a/lib/string_helpers_kunit.c b/lib/tests/string_helpers_kunit.c
> similarity index 100%
> rename from lib/string_helpers_kunit.c
> rename to lib/tests/string_helpers_kunit.c
> diff --git a/lib/string_kunit.c b/lib/tests/string_kunit.c
> similarity index 100%
> rename from lib/string_kunit.c
> rename to lib/tests/string_kunit.c
> diff --git a/lib/test_bits.c b/lib/tests/test_bits.c
> similarity index 100%
> rename from lib/test_bits.c
> rename to lib/tests/test_bits.c
> diff --git a/lib/test_fprobe.c b/lib/tests/test_fprobe.c
> similarity index 100%
> rename from lib/test_fprobe.c
> rename to lib/tests/test_fprobe.c
> diff --git a/lib/test_hash.c b/lib/tests/test_hash.c
> similarity index 100%
> rename from lib/test_hash.c
> rename to lib/tests/test_hash.c
> diff --git a/lib/test_kprobes.c b/lib/tests/test_kprobes.c
> similarity index 100%
> rename from lib/test_kprobes.c
> rename to lib/tests/test_kprobes.c
> diff --git a/lib/test_linear_ranges.c b/lib/tests/test_linear_ranges.c
> similarity index 100%
> rename from lib/test_linear_ranges.c
> rename to lib/tests/test_linear_ranges.c
> diff --git a/lib/test_list_sort.c b/lib/tests/test_list_sort.c
> similarity index 100%
> rename from lib/test_list_sort.c
> rename to lib/tests/test_list_sort.c
> diff --git a/lib/test_sort.c b/lib/tests/test_sort.c
> similarity index 100%
> rename from lib/test_sort.c
> rename to lib/tests/test_sort.c
> --
> 2.34.1
>
> --
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