mm: add function to get an existing or allocate a new MM endpoint

Signed-off-by: Patrick McHardy <kaber@trash.net>

2 files changed, 16 insertions, 0 deletions

diff --git a/include/dect/mm.h b/include/dect/mm.h
index 359f417..8770714 100644
--- a/include/dect/mm.h
+++ b/include/dect/mm.h
@@ -232,6 +232,8 @@ struct dect_mm_endpoint;
 
 extern struct dect_mm_endpoint *dect_mm_endpoint_alloc(struct dect_handle *dh,
 						       const struct dect_ipui *ipui);
+extern struct dect_mm_endpoint *dect_mm_endpoint_get(struct dect_handle *dh,
+						     const struct dect_ipui *ipui);
 extern void dect_mm_endpoint_destroy(struct dect_handle *dh,
 				     struct dect_mm_endpoint *mme);
 extern void *dect_mm_priv(struct dect_mm_endpoint *mme);
diff --git a/src/mm.c b/src/mm.c
index 396105d..dd70322 100644
--- a/src/mm.c
+++ b/src/mm.c
@@ -522,6 +522,20 @@ dect_mm_endpoint_get_by_link(const struct dect_handle *dh,
 	return NULL;
 }
 
+struct dect_mm_endpoint *dect_mm_endpoint_get(struct dect_handle *dh,
+					      const struct dect_ipui *ipui)
+{
+	struct dect_mm_endpoint *mme;
+
+	list_for_each_entry(mme, &dh->mme_list, list) {
+		if (!dect_ipui_cmp(&mme->link->ipui, ipui))
+			return mme;
+	}
+
+	return dect_mm_endpoint_alloc(dh, ipui);
+}
+EXPORT_SYMBOL(dect_mm_endpoint_get);
+
 struct dect_mm_endpoint *dect_mm_endpoint_alloc(struct dect_handle *dh,
 						const struct dect_ipui *ipui)
 {