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From: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
To: netfilter-devel@lists.netfilter.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 2.6.20 11/14] nfnetlink_log: iterator functions need iter_state * only
Date: Mon, 12 Feb 2007 21:22:00 +0100	[thread overview]
Message-ID: <20070212202200.GB28704@rere.qmqm.pl> (raw)
In-Reply-To: <20070212202052.GA28704@rere.qmqm.pl>

get_*() don't need access to seq_file - iter_state is enough for them.

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

--- linux-2.6.20/net/netfilter/nfnetlink_log.c.9	2007-02-12 00:19:16.000000000 +0100
+++ linux-2.6.20/net/netfilter/nfnetlink_log.c	2007-02-12 17:05:14.000000000 +0100
@@ -929,10 +929,8 @@ struct iter_state {
 	unsigned int bucket;
 };
 
-static struct hlist_node *get_first(struct seq_file *seq)
+static struct hlist_node *get_first(struct iter_state *st)
 {
-	struct iter_state *st = seq->private;
-
 	if (!st)
 		return NULL;
 
@@ -943,10 +941,8 @@ static struct hlist_node *get_first(stru
 	return NULL;
 }
 
-static struct hlist_node *get_next(struct seq_file *seq, struct hlist_node *h)
+static struct hlist_node *get_next(struct iter_state *st, struct hlist_node *h)
 {
-	struct iter_state *st = seq->private;
-
 	h = h->next;
 	while (!h) {
 		if (++st->bucket >= INSTANCE_BUCKETS)
@@ -957,13 +953,13 @@ static struct hlist_node *get_next(struc
 	return h;
 }
 
-static struct hlist_node *get_idx(struct seq_file *seq, loff_t pos)
+static struct hlist_node *get_idx(struct iter_state *st, loff_t pos)
 {
 	struct hlist_node *head;
-	head = get_first(seq);
+	head = get_first(st);
 
 	if (head)
-		while (pos && (head = get_next(seq, head)))
+		while (pos && (head = get_next(st, head)))
 			pos--;
 	return pos ? NULL : head;
 }
@@ -971,13 +967,13 @@ static struct hlist_node *get_idx(struct
 static void *seq_start(struct seq_file *seq, loff_t *pos)
 {
 	read_lock_bh(&instances_lock);
-	return get_idx(seq, *pos);
+	return get_idx(seq->private, *pos);
 }
 
 static void *seq_next(struct seq_file *s, void *v, loff_t *pos)
 {
 	(*pos)++;
-	return get_next(s, v);
+	return get_next(s->private, v);
 }
 
 static void seq_stop(struct seq_file *s, void *v)

  reply	other threads:[~2007-02-12 20:22 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-12  0:37 [PATCH 2.6.20 00/10] nfnetlink_log: patch series introduction Michał Mirosław
2007-02-12 20:20 ` [PATCH 2.6.20 +0/14] nfnetlink_log: patch series season 2 Michał Mirosław
2007-02-12 20:22   ` Michał Mirosław [this message]
2007-02-13 12:51     ` [PATCH 2.6.20 11/14] nfnetlink_log: iterator functions need iter_state * only Patrick McHardy
2007-02-12 20:22   ` [PATCH 2.6.20 12/14] nfnetlink_log: possible NULL pointer dereference in nfulnl_recv_config() Michał Mirosław
2007-02-13 12:55     ` Patrick McHardy
2007-02-12 20:22   ` [PATCH 2.6.20 13/14] nfnetlink_log: fix reference counting Michał Mirosław
2007-02-13 12:58     ` Patrick McHardy
2007-02-14 11:38       ` Michał Mirosław
2007-02-12 20:23   ` [PATCH 2.6.20 14/14] nfnetlink_log: micro-optimization: inst->skb != NULL in __nfulnl_send() Michał Mirosław
2007-02-14 11:57     ` Michał Mirosław

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