--- a/net/bluetooth/hci_sysfs.c
+++ b/net/bluetooth/hci_sysfs.c
@@ -72,7 +72,11 @@ static struct attribute_group bt_link_gr
 	.attrs = bt_link_attrs,
 };
 
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,31))
 static const struct attribute_group *bt_link_groups[] = {
+#else
+static struct attribute_group *bt_link_groups[] = {
+#endif
 	&bt_link_group,
 	NULL
 };
@@ -378,7 +382,11 @@ static struct attribute_group bt_host_gr
 	.attrs = bt_host_attrs,
 };
 
+#if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,31))
 static const struct attribute_group *bt_host_groups[] = {
+#else
+static struct attribute_group *bt_host_groups[] = {
+#endif
 	&bt_host_group,
 	NULL
 };