batman-adv: Prefix bat_sysfs non-static functions with batadv_

batman-adv can be compiled as part of the kernel instead of an module. In that
case the linker will see all non-static symbols of batman-adv and all other
non-static symbols of the kernel. This could lead to symbol collisions. A
prefix for the batman-adv symbols that defines their private namespace avoids
such a problem.

Reported-by: David Miller <davem@davemloft.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index 47f7186..1d7f08e 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -220,19 +220,19 @@
 	if ((curr_gw) && (!next_gw)) {
 		bat_dbg(DBG_BATMAN, bat_priv,
 			"Removing selected gateway - no gateway in range\n");
-		throw_uevent(bat_priv, UEV_GW, UEV_DEL, NULL);
+		batadv_throw_uevent(bat_priv, UEV_GW, UEV_DEL, NULL);
 	} else if ((!curr_gw) && (next_gw)) {
 		bat_dbg(DBG_BATMAN, bat_priv,
 			"Adding route to gateway %pM (gw_flags: %i, tq: %i)\n",
 			next_gw->orig_node->orig, next_gw->orig_node->gw_flags,
 			router->tq_avg);
-		throw_uevent(bat_priv, UEV_GW, UEV_ADD, gw_addr);
+		batadv_throw_uevent(bat_priv, UEV_GW, UEV_ADD, gw_addr);
 	} else {
 		bat_dbg(DBG_BATMAN, bat_priv,
 			"Changing route to gateway %pM (gw_flags: %i, tq: %i)\n",
 			next_gw->orig_node->orig, next_gw->orig_node->gw_flags,
 			router->tq_avg);
-		throw_uevent(bat_priv, UEV_GW, UEV_CHANGE, gw_addr);
+		batadv_throw_uevent(bat_priv, UEV_GW, UEV_CHANGE, gw_addr);
 	}
 
 	gw_select(bat_priv, next_gw);