diff --git a/fs/btrfs/free-space-cache.c b/fs/btrfs/free-space-cache.c
index 02c4d38f9e50..ed26a5793cf7 100644
--- a/fs/btrfs/free-space-cache.c
+++ b/fs/btrfs/free-space-cache.c
@@ -3490,4 +3490,6 @@ out:
 	test_msg("Free space cache tests finished\n");
 }
 #undef test_msg
-#endif /* CONFIG_BTRFS_FS_RUN_SANITY_TESTS */
+#else /* !CONFIG_BTRFS_FS_RUN_SANITY_TESTS */
+void btrfs_test_free_space_cache(void) {}
+#endif /* !CONFIG_BTRFS_FS_RUN_SANITY_TESTS */
diff --git a/fs/btrfs/free-space-cache.h b/fs/btrfs/free-space-cache.h
index 8b7f19f44961..894116b71304 100644
--- a/fs/btrfs/free-space-cache.h
+++ b/fs/btrfs/free-space-cache.h
@@ -113,8 +113,6 @@ int btrfs_return_cluster_to_free_space(
 int btrfs_trim_block_group(struct btrfs_block_group_cache *block_group,
 			   u64 *trimmed, u64 start, u64 end, u64 minlen);
 
-#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
 void btrfs_test_free_space_cache(void);
-#endif
 
 #endif
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c
index f0857e092a3c..107c6e23cbc0 100644
--- a/fs/btrfs/super.c
+++ b/fs/btrfs/super.c
@@ -1733,9 +1733,7 @@ static int __init init_btrfs_fs(void)
 
 	btrfs_init_lockdep();
 
-#ifdef CONFIG_BTRFS_FS_RUN_SANITY_TESTS
 	btrfs_test_free_space_cache();
-#endif
 
 	printk(KERN_INFO "%s loaded\n", BTRFS_BUILD_VERSION);
 	return 0;