linux-kernel - Re: [PATCH 2.6.20 14/14] nfnetlink_log: micro-optimization: inst->skb != NULL in __nfulnl

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Date:	Wed, 14 Feb 2007 12:57:22 +0100
From:	Michał Mirosław <mirq-linux@...e.qmqm.pl>
To:	netfilter-devel@...ts.netfilter.org
Cc:	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 2.6.20 14/14] nfnetlink_log: micro-optimization: inst->skb != NULL in __nfulnl_send()

Patch updated to apply after a new version of 13/14:

No other function calls __nfulnl_send() with inst->skb == NULL than nfulnl_timer().

Signed-off-by: Michał Mirosław <mirq-linux@...e.qmqm.pl>

--- linux-2.6.20/net/netfilter/nfnetlink_log.c.12	2007-02-14 12:27:09.000000000 +0100
+++ linux-2.6.20/net/netfilter/nfnetlink_log.c	2007-02-14 12:53:04.000000000 +0100
@@ -373,9 +373,6 @@ __nfulnl_send(struct nfulnl_instance *in
 {
 	int status;
 
-	if (!inst->skb)
-		return 0;
-
 	if (inst->qlen > 1)
 		inst->lastnlh->nlmsg_type = NLMSG_DONE;
 
@@ -399,7 +396,8 @@ static void nfulnl_timer(unsigned long d
 	UDEBUG("timer function called, flushing buffer\n");
 
 	spin_lock_bh(&inst->lock);
-	__nfulnl_send(inst);
+	if (inst->skb)
+		__nfulnl_send(inst);
 	spin_unlock_bh(&inst->lock);
 	instance_put(inst);
 }
-
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