Add EXPORT_SYMBOL() for the uf_find() and uf_union() functions to allow
kernel modules, including the KUnit tests for the Union-Find data
structure, to use these functions. This enhances the usability of the
Union-Find implementation in a modular context, facilitating easier
testing and integration.

Signed-off-by: Kuan-Wei Chiu <visitorckw@gmail.com>
---
 lib/union_find.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/lib/union_find.c b/lib/union_find.c
index 413b0f8adf7a..c9fd30b8059c 100644
--- a/lib/union_find.c
+++ b/lib/union_find.c
@@ -1,4 +1,5 @@
 // SPDX-License-Identifier: GPL-2.0
+#include <linux/export.h>
 #include <linux/union_find.h>
 
 /**
@@ -21,6 +22,7 @@ struct uf_node *uf_find(struct uf_node *node)
 	}
 	return node;
 }
+EXPORT_SYMBOL(uf_find);
 
 /**
  * uf_union - Merge two sets, using union by rank
@@ -47,3 +49,4 @@ void uf_union(struct uf_node *node1, struct uf_node *node2)
 		root1->rank++;
 	}
 }
+EXPORT_SYMBOL(uf_union);
-- 
2.34.1