diff -r 0569bf9338ba drivers/xen/sfc_netback/accel.c
--- a/drivers/xen/sfc_netback/accel.c
+++ b/drivers/xen/sfc_netback/accel.c
@@ -72,7 +72,7 @@ static struct notifier_block netback_acc
 
 
 unsigned sfc_netback_max_pages = NETBACK_ACCEL_DEFAULT_MAX_BUF_PAGES;
-module_param_named(max_pages, sfc_netback_max_pages, uint, 0666);
+module_param_named(max_pages, sfc_netback_max_pages, uint, 0644);
 MODULE_PARM_DESC(max_pages, 
 		 "The number of buffer pages to enforce on each guest");
 
diff -r 0569bf9338ba drivers/xen/sfc_netfront/accel_netfront.c
--- a/drivers/xen/sfc_netfront/accel_netfront.c
+++ b/drivers/xen/sfc_netfront/accel_netfront.c
@@ -235,11 +235,11 @@ struct netfront_accel_hooks accel_hooks 
 
 
 unsigned sfc_netfront_max_pages = NETFRONT_ACCEL_DEFAULT_BUF_PAGES;
-module_param_named (max_pages, sfc_netfront_max_pages, uint, 0666);
+module_param_named (max_pages, sfc_netfront_max_pages, uint, 0644);
 MODULE_PARM_DESC(max_pages, "Number of buffer pages to request");
 
 unsigned sfc_netfront_buffer_split = 2;
-module_param_named (buffer_split, sfc_netfront_buffer_split, uint, 0666);
+module_param_named (buffer_split, sfc_netfront_buffer_split, uint, 0644);
 MODULE_PARM_DESC(buffer_split, 
 		 "Fraction of buffers to use for TX, rest for RX");