netdev - [PATCH v2 net-next] bonding: use rtnl_deref in bond_change_rx

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: Windows password security audit tool. GUI, reports in PDF.

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

Date:	Wed, 16 Jul 2014 18:32:01 +0200
From:	Veaceslav Falico <vfalico@...il.com>
To:	netdev@...r.kernel.org
Cc:	Veaceslav Falico <vfalico@...il.com>,
	Jay Vosburgh <j.vosburgh@...il.com>,
	Andy Gospodarek <andy@...yhouse.net>
Subject: [PATCH v2 net-next] bonding: use rtnl_deref in bond_change_rx_flags()

As it's always called with RTNL held, via dev_set_allmulti/promiscuity.
Also, remove the wrong comment.

CC: Jay Vosburgh <j.vosburgh@...il.com>
CC: Andy Gospodarek <andy@...yhouse.net>
Signed-off-by: Veaceslav Falico <vfalico@...il.com>
---

Notes:
    v1->v2:
    also remove the misleading comment

 drivers/net/bonding/bond_main.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index d643807..c4f8162 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -498,9 +498,8 @@ static int bond_set_promiscuity(struct bonding *bond, int inc)
 	int err = 0;
 
 	if (bond_uses_primary(bond)) {
-		struct slave *curr_active = bond_deref_active_protected(bond);
+		struct slave *curr_active = rtnl_dereference(bond->curr_active_slave);
 
-		/* write lock already acquired */
 		if (curr_active)
 			err = dev_set_promiscuity(curr_active->dev, inc);
 	} else {
@@ -524,9 +523,8 @@ static int bond_set_allmulti(struct bonding *bond, int inc)
 	int err = 0;
 
 	if (bond_uses_primary(bond)) {
-		struct slave *curr_active = bond_deref_active_protected(bond);
+		struct slave *curr_active = rtnl_dereference(bond->curr_active_slave);
 
-		/* write lock already acquired */
 		if (curr_active)
 			err = dev_set_allmulti(curr_active->dev, inc);
 	} else {
-- 
1.8.4

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html