SELinux: avc: remove the useless fields in avc_add_callback

avc_add_callback now just used for registering reset functions
in initcalls, and the callback functions just did reset operations.
So, reducing the arguments to only one event is enough now.

Signed-off-by: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Eric Paris <eparis@redhat.com>
diff --git a/security/selinux/netport.c b/security/selinux/netport.c
index 7b9eb1f..d353797 100644
--- a/security/selinux/netport.c
+++ b/security/selinux/netport.c
@@ -234,8 +234,7 @@
 	spin_unlock_bh(&sel_netport_lock);
 }
 
-static int sel_netport_avc_callback(u32 event, u32 ssid, u32 tsid,
-				    u16 class, u32 perms, u32 *retained)
+static int sel_netport_avc_callback(u32 event)
 {
 	if (event == AVC_CALLBACK_RESET) {
 		sel_netport_flush();
@@ -257,8 +256,7 @@
 		sel_netport_hash[iter].size = 0;
 	}
 
-	ret = avc_add_callback(sel_netport_avc_callback, AVC_CALLBACK_RESET,
-			       SECSID_NULL, SECSID_NULL, SECCLASS_NULL, 0);
+	ret = avc_add_callback(sel_netport_avc_callback, AVC_CALLBACK_RESET);
 	if (ret != 0)
 		panic("avc_add_callback() failed, error %d\n", ret);