On 10/7/24 11:28 AM, Kuan-Wei Chiu wrote:
> 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);
BTW, we don't need to export these functions until the time a kernel
module starts to use it. That is the usual rule.
Cheers,
Longman