linux/lib/test_bits.c
Jeff Johnson 3034749132 KUnit: add missing MODULE_DESCRIPTION() macros for lib/test_*.ko
make allmodconfig && make W=1 C=1 reports for lib/test_*.ko:
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_hexdump.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_dhry.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_firmware.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_sysctl.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_hash.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_ida.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_list_sort.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_min_heap.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_module.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_sort.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_static_keys.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_static_key_base.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_memcat_p.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_blackhole_dev.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_meminit.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_free_pages.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_kprobes.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_ref_tracker.o
WARNING: modpost: missing MODULE_DESCRIPTION() in lib/test_bits.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Link: https://lkml.kernel.org/r/20240619-md-lib-test-v2-1-301e30eeba1e@quicinc.com
Signed-off-by: Jeff Johnson <quic_jjohnson@quicinc.com>
Reviewed-by: Kees Cook <kees@kernel.org>
Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: "Naveen N. Rao" <naveen.n.rao@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-06-24 22:25:11 -07:00

77 lines
1.8 KiB
C

// SPDX-License-Identifier: GPL-2.0+
/*
* Test cases for functions and macros in bits.h
*/
#include <kunit/test.h>
#include <linux/bits.h>
static void genmask_test(struct kunit *test)
{
KUNIT_EXPECT_EQ(test, 1ul, GENMASK(0, 0));
KUNIT_EXPECT_EQ(test, 3ul, GENMASK(1, 0));
KUNIT_EXPECT_EQ(test, 6ul, GENMASK(2, 1));
KUNIT_EXPECT_EQ(test, 0xFFFFFFFFul, GENMASK(31, 0));
#ifdef TEST_GENMASK_FAILURES
/* these should fail compilation */
GENMASK(0, 1);
GENMASK(0, 10);
GENMASK(9, 10);
#endif
}
static void genmask_ull_test(struct kunit *test)
{
KUNIT_EXPECT_EQ(test, 1ull, GENMASK_ULL(0, 0));
KUNIT_EXPECT_EQ(test, 3ull, GENMASK_ULL(1, 0));
KUNIT_EXPECT_EQ(test, 0x000000ffffe00000ull, GENMASK_ULL(39, 21));
KUNIT_EXPECT_EQ(test, 0xffffffffffffffffull, GENMASK_ULL(63, 0));
#ifdef TEST_GENMASK_FAILURES
/* these should fail compilation */
GENMASK_ULL(0, 1);
GENMASK_ULL(0, 10);
GENMASK_ULL(9, 10);
#endif
}
static void genmask_input_check_test(struct kunit *test)
{
unsigned int x, y;
int z, w;
/* Unknown input */
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(x, 0));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(0, x));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(x, y));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(z, 0));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(0, z));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(z, w));
/* Valid input */
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(1, 1));
KUNIT_EXPECT_EQ(test, 0, GENMASK_INPUT_CHECK(39, 21));
}
static struct kunit_case bits_test_cases[] = {
KUNIT_CASE(genmask_test),
KUNIT_CASE(genmask_ull_test),
KUNIT_CASE(genmask_input_check_test),
{}
};
static struct kunit_suite bits_test_suite = {
.name = "bits-test",
.test_cases = bits_test_cases,
};
kunit_test_suite(bits_test_suite);
MODULE_DESCRIPTION("Test cases for functions and macros in bits.h");
MODULE_LICENSE("GPL");