Replace KUnit tests for memcmp() with KUNIT_ASSERT_MEMEQ() to improve debugging that prints the hex dump of the buffers when the assertion fails, whereas memcmp() only returns an integer difference. Signed-off-by: Ryota Sakamoto --- fs/ext4/mballoc-test.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/fs/ext4/mballoc-test.c b/fs/ext4/mballoc-test.c index a9416b20ff64c930d90fc177d01cd6a4639d8333..85613b1811cd7c7b7410acff6028f0eabf28ef2c 100644 --- a/fs/ext4/mballoc-test.c +++ b/fs/ext4/mballoc-test.c @@ -710,8 +710,7 @@ do_test_generate_buddy(struct kunit *test, struct super_block *sb, void *bitmap, ext4_mb_generate_buddy(sb, ext4_buddy, bitmap, TEST_GOAL_GROUP, ext4_grp); - KUNIT_ASSERT_EQ(test, memcmp(mbt_buddy, ext4_buddy, sb->s_blocksize), - 0); + KUNIT_ASSERT_MEMEQ(test, mbt_buddy, ext4_buddy, sb->s_blocksize); mbt_validate_group_info(test, mbt_grp, ext4_grp); } @@ -772,8 +771,7 @@ test_mb_mark_used_range(struct kunit *test, struct ext4_buddy *e4b, grp->bb_counters[i] = 0; ext4_mb_generate_buddy(sb, buddy, bitmap, 0, grp); - KUNIT_ASSERT_EQ(test, memcmp(buddy, e4b->bd_buddy, sb->s_blocksize), - 0); + KUNIT_ASSERT_MEMEQ(test, buddy, e4b->bd_buddy, sb->s_blocksize); mbt_validate_group_info(test, grp, e4b->bd_info); } @@ -837,8 +835,7 @@ test_mb_free_blocks_range(struct kunit *test, struct ext4_buddy *e4b, grp->bb_counters[i] = 0; ext4_mb_generate_buddy(sb, buddy, bitmap, 0, grp); - KUNIT_ASSERT_EQ(test, memcmp(buddy, e4b->bd_buddy, sb->s_blocksize), - 0); + KUNIT_ASSERT_MEMEQ(test, buddy, e4b->bd_buddy, sb->s_blocksize); mbt_validate_group_info(test, grp, e4b->bd_info); } --- base-commit: fcb70a56f4d81450114034b2c61f48ce7444a0e2 change-id: 20260127-fix-fs_ext4-memcmp-e8014778cf73 Best regards, -- Ryota Sakamoto