netdev - [PATCH net-next 2/2] net/sched: cls_flower: merge filter delete/destroy common code

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1478009309-63180-3-git-send-email-roid@mellanox.com>
Date:   Tue,  1 Nov 2016 16:08:29 +0200
From:   Roi Dayan <roid@...lanox.com>
To:     "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, Jiri Pirko <jiri@...lanox.com>,
        Roi Dayan <roid@...lanox.com>
Subject: [PATCH net-next 2/2] net/sched: cls_flower: merge filter delete/destroy common code

Move common code from fl_delete and fl_detroy to __fl_delete.

Signed-off-by: Roi Dayan <roid@...lanox.com>
---
 net/sched/cls_flower.c | 21 +++++++++++----------
 1 file changed, 11 insertions(+), 10 deletions(-)

diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index a5f6370..a8fb1ca 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -269,6 +269,14 @@ static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f)
 	dev->netdev_ops->ndo_setup_tc(dev, tp->q->handle, tp->protocol, &tc);
 }
 
+static void __fl_delete(struct tcf_proto *tp, struct cls_fl_filter *f)
+{
+	list_del_rcu(&f->list);
+	fl_hw_destroy_filter(tp, (unsigned long)f);
+	tcf_unbind_filter(tp, &f->res);
+	call_rcu(&f->rcu, fl_destroy_filter);
+}
+
 static bool fl_destroy(struct tcf_proto *tp, bool force)
 {
 	struct cls_fl_head *head = rtnl_dereference(tp->root);
@@ -277,12 +285,8 @@ static bool fl_destroy(struct tcf_proto *tp, bool force)
 	if (!force && !list_empty(&head->filters))
 		return false;
 
-	list_for_each_entry_safe(f, next, &head->filters, list) {
-		fl_hw_destroy_filter(tp, (unsigned long)f);
-		list_del_rcu(&f->list);
-		tcf_unbind_filter(tp, &f->res);
-		call_rcu(&f->rcu, fl_destroy_filter);
-	}
+	list_for_each_entry_safe(f, next, &head->filters, list)
+		__fl_delete(tp, f);
 	RCU_INIT_POINTER(tp->root, NULL);
 	if (head->mask_assigned)
 		rhashtable_destroy(&head->ht);
@@ -742,10 +746,7 @@ static int fl_delete(struct tcf_proto *tp, unsigned long arg)
 
 	rhashtable_remove_fast(&head->ht, &f->ht_node,
 			       head->ht_params);
-	list_del_rcu(&f->list);
-	fl_hw_destroy_filter(tp, (unsigned long)f);
-	tcf_unbind_filter(tp, &f->res);
-	call_rcu(&f->rcu, fl_destroy_filter);
+	__fl_delete(tp, f);
 	return 0;
 }
 
-- 
2.7.4