ble_mesh: Add net_buf_simple_init_with_data [Zephyr]

components/bt/esp_ble_mesh/mesh_common/include/mesh_buf.h

@@ -152,6 +152,18 @@ static inline void net_buf_simple_init(struct net_buf_simple *buf,
     buf->len = 0;
 }
 
+/**
+ * @brief Initialize a net_buf_simple object with data.
+ *
+ * Initialized buffer object with external data.
+ *
+ * @param buf Buffer to initialize.
+ * @param data External data pointer
+ * @param size Amount of data the pointed data buffer if able to fit.
+ */
+void net_buf_simple_init_with_data(struct net_buf_simple *buf,
+                                   void *data, size_t size);
+
 /**
  * @brief Reset buffer
  *

components/bt/esp_ble_mesh/mesh_common/mesh_buf.c

@@ -383,6 +383,15 @@ void net_buf_reset(struct net_buf *buf)
     net_buf_simple_reset(&buf->b);
 }
 
+void net_buf_simple_init_with_data(struct net_buf_simple *buf,
+                                   void *data, size_t size)
+{
+    buf->__buf = data;
+    buf->data  = data;
+    buf->size  = size;
+    buf->len   = size;
+}
+
 void net_buf_simple_reserve(struct net_buf_simple *buf, size_t reserve)
 {
     NET_BUF_ASSERT(buf);