From 8bb59ca2faee83ba50850900c8b4edf9331ae931 Mon Sep 17 00:00:00 2001 From: Jianjun Wang Date: Tue, 30 Nov 2021 10:51:53 +0800 Subject: lib: Add __fls() (Find Last Set) Implement __fls() as an alias for log2(), and remove the duplicate definitions in commonlib/storage/sdhci.c. Signed-off-by: Jianjun Wang Change-Id: Ib458abfec7e03b2979569a8440a6e69b0285ac32 Reviewed-on: https://review.coreboot.org/c/coreboot/+/59738 Tested-by: build bot (Jenkins) Reviewed-by: Julius Werner Reviewed-by: Yu-Ping Wu --- tests/lib/lib-test.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'tests') diff --git a/tests/lib/lib-test.c b/tests/lib/lib-test.c index adaa2f9500ef..826c6c563a94 100644 --- a/tests/lib/lib-test.c +++ b/tests/lib/lib-test.c @@ -37,6 +37,15 @@ void test_ffs(void **state) assert_int_equal(__ffs(0xffffffff), 0); } +void test_fls(void **state) +{ + assert_int_equal(__fls(0x0), -1); + assert_int_equal(__fls(0x1), 0); + assert_int_equal(__fls(0x5), 2); + assert_int_equal(__fls(0x80000000), 31); + assert_int_equal(__fls(0xffffffff), 31); +} + void test_log2_ceil(void **state) { assert_int_equal(log2_ceil(0x0), -1); @@ -53,6 +62,7 @@ int main(void) cmocka_unit_test(test_clz), cmocka_unit_test(test_log2), cmocka_unit_test(test_ffs), + cmocka_unit_test(test_fls), cmocka_unit_test(test_log2_ceil), }; -- cgit v1.2.3