From f7ac0c57e969daeff37058b33ed62887524292a1 Mon Sep 17 00:00:00 2001
From: Jose Alamos <jose.alamos@haw-hamburg.de>
Date: Thu, 14 Feb 2019 15:09:03 +0100
Subject: [PATCH] net/gnrc/pktbuf.h: add note in gnrc_pktbuf_mark

---
 sys/include/net/gnrc/pktbuf.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sys/include/net/gnrc/pktbuf.h b/sys/include/net/gnrc/pktbuf.h
index f6d4eac552..0b55b4527f 100644
--- a/sys/include/net/gnrc/pktbuf.h
+++ b/sys/include/net/gnrc/pktbuf.h
@@ -113,6 +113,9 @@ gnrc_pktsnip_t *gnrc_pktbuf_add(gnrc_pktsnip_t *next, const void *data, size_t s
  * @param[in] size  The size of the new packet snip.
  * @param[in] type  The type of the new packet snip.
  *
+ * @note    It's not guaranteeed that `result->data` points to the same address
+ *          as the original `pkt->data`.
+ *
  * @return  The new packet snip in @p pkt on success.
  * @return  NULL, if pkt == NULL or size == 0 or size > pkt->size or pkt->data == NULL.
  * @return  NULL, if no space is left in the packet buffer.
-- 
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