diff --git a/mm/damon/Kconfig b/mm/damon/Kconfig
index 35b72f88983a..5ee5e62c0a1e 100644
--- a/mm/damon/Kconfig
+++ b/mm/damon/Kconfig
@@ -89,18 +89,6 @@ config DAMON_DBGFS
 	default y
 	depends on DAMON_DBGFS_DEPRECATED
 
-config DAMON_DBGFS_KUNIT_TEST
-	bool "Test for damon debugfs interface" if !KUNIT_ALL_TESTS
-	depends on DAMON_DBGFS && KUNIT=y
-	default KUNIT_ALL_TESTS
-	help
-	  This builds the DAMON debugfs interface Kunit test suite.
-
-	  For more information on KUnit and unit tests in general, please refer
-	  to the KUnit documentation.
-
-	  If unsure, say N.
-
 config DAMON_RECLAIM
 	bool "Build DAMON-based reclaim (DAMON_RECLAIM)"
 	depends on DAMON_PADDR
diff --git a/mm/damon/dbgfs.c b/mm/damon/dbgfs.c
index b4213bc47e44..5664c2cb0a5e 100644
--- a/mm/damon/dbgfs.c
+++ b/mm/damon/dbgfs.c
@@ -1144,5 +1144,3 @@ static int __init damon_dbgfs_init(void)
 }
 
 module_init(damon_dbgfs_init);
-
-#include "tests/dbgfs-kunit.h"
diff --git a/mm/damon/tests/.kunitconfig b/mm/damon/tests/.kunitconfig
index a73be044fc9b..36a450f57b58 100644
--- a/mm/damon/tests/.kunitconfig
+++ b/mm/damon/tests/.kunitconfig
@@ -13,10 +13,3 @@ CONFIG_DAMON_VADDR_KUNIT_TEST=y
 CONFIG_SYSFS=y
 CONFIG_DAMON_SYSFS=y
 CONFIG_DAMON_SYSFS_KUNIT_TEST=y
-
-# for DAMON debugfs interface
-CONFIG_DEBUG_FS=y
-CONFIG_DAMON_PADDR=y
-CONFIG_DAMON_DBGFS_DEPRECATED=y
-CONFIG_DAMON_DBGFS=y
-CONFIG_DAMON_DBGFS_KUNIT_TEST=y
diff --git a/mm/damon/tests/dbgfs-kunit.h b/mm/damon/tests/dbgfs-kunit.h
deleted file mode 100644
index d2ecfcc8db86..000000000000
--- a/mm/damon/tests/dbgfs-kunit.h
+++ /dev/null
@@ -1,173 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-/*
- * DAMON Debugfs Interface Unit Tests
- *
- * Author: SeongJae Park <sj@kernel.org>
- */
-
-#ifdef CONFIG_DAMON_DBGFS_KUNIT_TEST
-
-#ifndef _DAMON_DBGFS_TEST_H
-#define _DAMON_DBGFS_TEST_H
-
-#include <kunit/test.h>
-
-static void damon_dbgfs_test_str_to_ints(struct kunit *test)
-{
-	char *question;
-	int *answers;
-	int expected[] = {12, 35, 46};
-	ssize_t nr_integers = 0, i;
-
-	question = "123";
-	answers = str_to_ints(question, strlen(question), &nr_integers);
-	KUNIT_EXPECT_EQ(test, (ssize_t)1, nr_integers);
-	KUNIT_EXPECT_EQ(test, 123, answers[0]);
-	kfree(answers);
-
-	question = "123abc";
-	answers = str_to_ints(question, strlen(question), &nr_integers);
-	KUNIT_EXPECT_EQ(test, (ssize_t)1, nr_integers);
-	KUNIT_EXPECT_EQ(test, 123, answers[0]);
-	kfree(answers);
-
-	question = "a123";
-	answers = str_to_ints(question, strlen(question), &nr_integers);
-	KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
-	kfree(answers);
-
-	question = "12 35";
-	answers = str_to_ints(question, strlen(question), &nr_integers);
-	KUNIT_EXPECT_EQ(test, (ssize_t)2, nr_integers);
-	for (i = 0; i < nr_integers; i++)
-		KUNIT_EXPECT_EQ(test, expected[i], answers[i]);
-	kfree(answers);
-
-	question = "12 35 46";
-	answers = str_to_ints(question, strlen(question), &nr_integers);
-	KUNIT_EXPECT_EQ(test, (ssize_t)3, nr_integers);
-	for (i = 0; i < nr_integers; i++)
-		KUNIT_EXPECT_EQ(test, expected[i], answers[i]);
-	kfree(answers);
-
-	question = "12 35 abc 46";
-	answers = str_to_ints(question, strlen(question), &nr_integers);
-	KUNIT_EXPECT_EQ(test, (ssize_t)2, nr_integers);
-	for (i = 0; i < 2; i++)
-		KUNIT_EXPECT_EQ(test, expected[i], answers[i]);
-	kfree(answers);
-
-	question = "";
-	answers = str_to_ints(question, strlen(question), &nr_integers);
-	KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
-	kfree(answers);
-
-	question = "\n";
-	answers = str_to_ints(question, strlen(question), &nr_integers);
-	KUNIT_EXPECT_EQ(test, (ssize_t)0, nr_integers);
-	kfree(answers);
-}
-
-static void damon_dbgfs_test_set_targets(struct kunit *test)
-{
-	struct damon_ctx *ctx = dbgfs_new_ctx();
-	char buf[64];
-
-	if (!damon_is_registered_ops(DAMON_OPS_PADDR)) {
-		dbgfs_destroy_ctx(ctx);
-		kunit_skip(test, "PADDR not registered");
-	}
-
-	/* Make DAMON consider target has no pid */
-	damon_select_ops(ctx, DAMON_OPS_PADDR);
-
-	dbgfs_set_targets(ctx, 0, NULL);
-	sprint_target_ids(ctx, buf, 64);
-	KUNIT_EXPECT_STREQ(test, (char *)buf, "\n");
-
-	dbgfs_set_targets(ctx, 1, NULL);
-	sprint_target_ids(ctx, buf, 64);
-	KUNIT_EXPECT_STREQ(test, (char *)buf, "42\n");
-
-	dbgfs_set_targets(ctx, 0, NULL);
-	sprint_target_ids(ctx, buf, 64);
-	KUNIT_EXPECT_STREQ(test, (char *)buf, "\n");
-
-	dbgfs_destroy_ctx(ctx);
-}
-
-static void damon_dbgfs_test_set_init_regions(struct kunit *test)
-{
-	struct damon_ctx *ctx = damon_new_ctx();
-	/* Each line represents one region in ``<target idx> <start> <end>`` */
-	char * const valid_inputs[] = {"1 10 20\n 1   20 30\n1 35 45",
-		"1 10 20\n",
-		"1 10 20\n0 39 59\n0 70 134\n  1  20 25\n",
-		""};
-	/* Reading the file again will show sorted, clean output */
-	char * const valid_expects[] = {"1 10 20\n1 20 30\n1 35 45\n",
-		"1 10 20\n",
-		"0 39 59\n0 70 134\n1 10 20\n1 20 25\n",
-		""};
-	char * const invalid_inputs[] = {"3 10 20\n",	/* target not exists */
-		"1 10 20\n 1 14 26\n",		/* regions overlap */
-		"0 10 20\n1 30 40\n 0 5 8"};	/* not sorted by address */
-	char *input, *expect;
-	int i, rc;
-	char buf[256];
-
-	if (!damon_is_registered_ops(DAMON_OPS_PADDR)) {
-		damon_destroy_ctx(ctx);
-		kunit_skip(test, "PADDR not registered");
-	}
-
-	damon_select_ops(ctx, DAMON_OPS_PADDR);
-
-	dbgfs_set_targets(ctx, 3, NULL);
-
-	/* Put valid inputs and check the results */
-	for (i = 0; i < ARRAY_SIZE(valid_inputs); i++) {
-		input = valid_inputs[i];
-		expect = valid_expects[i];
-
-		rc = set_init_regions(ctx, input, strnlen(input, 256));
-		KUNIT_EXPECT_EQ(test, rc, 0);
-
-		memset(buf, 0, 256);
-		sprint_init_regions(ctx, buf, 256);
-
-		KUNIT_EXPECT_STREQ(test, (char *)buf, expect);
-	}
-	/* Put invalid inputs and check the return error code */
-	for (i = 0; i < ARRAY_SIZE(invalid_inputs); i++) {
-		input = invalid_inputs[i];
-		pr_info("input: %s\n", input);
-		rc = set_init_regions(ctx, input, strnlen(input, 256));
-		KUNIT_EXPECT_EQ(test, rc, -EINVAL);
-
-		memset(buf, 0, 256);
-		sprint_init_regions(ctx, buf, 256);
-
-		KUNIT_EXPECT_STREQ(test, (char *)buf, "");
-	}
-
-	dbgfs_set_targets(ctx, 0, NULL);
-	damon_destroy_ctx(ctx);
-}
-
-static struct kunit_case damon_test_cases[] = {
-	KUNIT_CASE(damon_dbgfs_test_str_to_ints),
-	KUNIT_CASE(damon_dbgfs_test_set_targets),
-	KUNIT_CASE(damon_dbgfs_test_set_init_regions),
-	{},
-};
-
-static struct kunit_suite damon_test_suite = {
-	.name = "damon-dbgfs",
-	.test_cases = damon_test_cases,
-};
-kunit_test_suite(damon_test_suite);
-
-#endif /* _DAMON_TEST_H */
-
-#endif	/* CONFIG_DAMON_KUNIT_TEST */
