X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvpp-api%2Fpython%2Fvpp_papi%2Fvpp_serializer.py;h=cd9a281964a7a7e7f2b38141b404de1c03e28319;hb=b199e98fef4256795db7fb055b180a07ce84de5c;hp=9b30d5caa56aa527b46bd55699f996e23e6bea3b;hpb=b257fc9fc2558139ec315754e98a57cebb358ed4;p=vpp.git

diff --git a/src/vpp-api/python/vpp_papi/vpp_serializer.py b/src/vpp-api/python/vpp_papi/vpp_serializer.py
index 9b30d5caa56..cd9a281964a 100644
--- a/src/vpp-api/python/vpp_papi/vpp_serializer.py
+++ b/src/vpp-api/python/vpp_papi/vpp_serializer.py
@@ -232,17 +232,15 @@ class VPPUnionType():
         for k, v in data.items():
             logger.debug("Key: {} Value: {}".format(k, v))
             b = self.packers[k].pack(v, kwargs)
-            offset = self.size - self.packers[k].size
             break
         r = bytearray(self.size)
-        r[offset:] = b
+        r[:len(b)] = b
         return r
 
     def unpack(self, data, offset=0, result=None):
         r = []
         for k, p in self.packers.items():
-            union_offset = self.size - p.size
-            r.append(p.unpack(data, offset + union_offset))
+            r.append(p.unpack(data, offset))
         return self.tuple._make(r)