diff --git a/[refs] b/[refs]
index c2950bbf6463..ec60d752b53b 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: cedb9bdce099206290a2bdd02ce47a7b253b6a84
+refs/heads/master: f9611c43ab0ddaf547b395c90fb842f55959334c
diff --git a/trunk/drivers/vhost/net.c b/trunk/drivers/vhost/net.c
index aa76ca72606a..ebd08b21b234 100644
--- a/trunk/drivers/vhost/net.c
+++ b/trunk/drivers/vhost/net.c
@@ -30,9 +30,10 @@
 
 #include "vhost.h"
 
-static int experimental_zcopytx;
+static int experimental_zcopytx = 1;
 module_param(experimental_zcopytx, int, 0444);
-MODULE_PARM_DESC(experimental_zcopytx, "Enable Experimental Zero Copy TX");
+MODULE_PARM_DESC(experimental_zcopytx, "Enable Zero Copy TX;"
+		                       " 1 -Enable; 0 - Disable");
 
 /* Max number of bytes transferred before requeueing the job.
  * Using this limit prevents one virtqueue from starving others. */