#include <linux/netdevice.h>
#include <linux/if_vlan.h>
+#ifdef HAVE_RHEL_OVS_HOOK
+int nr_bridges = 0;
+#endif
+
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,38)
#ifndef HAVE_CAN_CHECKSUM_PROTOCOL
static bool can_checksum_protocol(unsigned long features, __be16 protocol)