lpm: fix allocation of an existing object

[dpdk.git] / doc / guides / rel_notes / release_16_04.rst

diff --git a/doc/guides/rel_notes/release_16_04.rst b/doc/guides/rel_notes/release_16_04.rst
index 1acc63a..b0f3dba 100644 (file)
--- a/doc/guides/rel_notes/release_16_04.rst
+++ b/doc/guides/rel_notes/release_16_04.rst
@@ -434,6 +434,15 @@ Libraries
   however a custom compare function (not in the jump table) can only
   be used in single-process mode.
 
+* **lpm: Fixed return value when allocating an existing object.**
+
+  Changed the ``rte_lpm*_create()`` functions to return ``NULL`` and set
+  ``rte_errno`` to ``EEXIST`` when the object name already exists. This is
+  the behavior described in the API documentation in the header file.
+  The previous behavior was to return a pointer to the existing object in
+  that case, preventing the caller to know if the object had to be freed
+  or not.
+
 * **librte_port: Fixed segmentation fault for ring and ethdev writer nodrop.**
 
   Fixed core dump issue on txq and swq when dropless is set to yes.