Remove c-11 memcpy checks from perf-critical code

Change-Id: Id4f37f5d4a03160572954a416efa1ef9b3d79ad1
Signed-off-by: Dave Barach <dave@barachs.net>
diff --git a/src/vnet/l2/l2_vtr.c b/src/vnet/l2/l2_vtr.c
index 7096891..aa3d5c4 100644
--- a/src/vnet/l2/l2_vtr.c
+++ b/src/vnet/l2/l2_vtr.c
@@ -91,10 +91,10 @@
     }
   else if (vtr_op == L2_VTR_PUSH_2)
     {
-      clib_memcpy (in_config->macs_tags.b_dst_address, b_dmac,
-		   sizeof (in_config->macs_tags.b_dst_address));
-      clib_memcpy (in_config->macs_tags.b_src_address, b_smac,
-		   sizeof (in_config->macs_tags.b_src_address));
+      clib_memcpy_fast (in_config->macs_tags.b_dst_address, b_dmac,
+			sizeof (in_config->macs_tags.b_dst_address));
+      clib_memcpy_fast (in_config->macs_tags.b_src_address, b_smac,
+			sizeof (in_config->macs_tags.b_src_address));
       in_config->macs_tags.b_type =
 	clib_net_to_host_u16 (ETHERNET_TYPE_DOT1AD);
       in_config->macs_tags.priority_dei_id =
@@ -726,10 +726,12 @@
       else if (in_config->push_bytes)
 	*vtr_op = L2_VTR_PUSH_2;
 
-      clib_memcpy (&eth_hdr->dst_address, in_config->macs_tags.b_dst_address,
-		   sizeof (eth_hdr->dst_address));
-      clib_memcpy (&eth_hdr->src_address, in_config->macs_tags.b_src_address,
-		   sizeof (eth_hdr->src_address));
+      clib_memcpy_fast (&eth_hdr->dst_address,
+			in_config->macs_tags.b_dst_address,
+			sizeof (eth_hdr->dst_address));
+      clib_memcpy_fast (&eth_hdr->src_address,
+			in_config->macs_tags.b_src_address,
+			sizeof (eth_hdr->src_address));
 
       *b_vlanid =
 	clib_host_to_net_u16 (in_config->macs_tags.priority_dei_id) & 0xFFF;