netfilter: xt_NFLOG: don't call nf_log_packet in NFLOG module.

This patch modifies xt_NFLOG to suppress the call to nf_log_packet()
function. The call of this wrapper in xt_NFLOG was causing NFLOG to
use the first initialized module. Thus, if ipt_ULOG is loaded before
nfnetlink_log all NFLOG rules are treated as plain LOG rules.

Signed-off-by: Eric Leblond <eric@inl.fr>
Signed-off-by: Patrick McHardy <kaber@trash.net>
diff --git a/net/netfilter/nfnetlink_log.c b/net/netfilter/nfnetlink_log.c
index 41e0105..a51892b 100644
--- a/net/netfilter/nfnetlink_log.c
+++ b/net/netfilter/nfnetlink_log.c
@@ -533,7 +533,7 @@
 };
 
 /* log handler for internal netfilter logging api */
-static void
+void
 nfulnl_log_packet(u_int8_t pf,
 		  unsigned int hooknum,
 		  const struct sk_buff *skb,
@@ -648,6 +648,7 @@
 	/* FIXME: statistics */
 	goto unlock_and_release;
 }
+EXPORT_SYMBOL_GPL(nfulnl_log_packet);
 
 static int
 nfulnl_rcv_nl_event(struct notifier_block *this,