linux-kernel - Re: [ofa-general] [PATCH] IB/ipoib: Fix undefined symbol (priv->cm) if ipoib

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-prev] [day] [month] [year] [list]

Date:	Wed, 16 Jan 2008 13:22:07 -0800
From:	Roland Dreier <rdreier@...co.com>
To:	Hoang-Nam Nguyen <hnguyen@...ux.vnet.ibm.com>
Cc:	linux-kernel@...r.kernel.org, general@...ts.openfabrics.org,
	Christoph Raisch <RAISCH@...ibm.com>
Subject: Re: [ofa-general] [PATCH] IB/ipoib: Fix undefined symbol (priv->cm) if ipoib_cm disabled

Thanks a lot for pointing this out!  I rolled the following into the
offending patch in my tree instead (I preferred avoiding #ifdefs in .c
files...)

diff --git a/drivers/infiniband/ulp/ipoib/ipoib.h b/drivers/infiniband/ulp/ipoib/ipoib.h
index 545c5a3..fe250c6 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib.h
+++ b/drivers/infiniband/ulp/ipoib/ipoib.h
@@ -505,6 +505,12 @@ static inline int ipoib_cm_has_srq(struct net_device *dev)
 	return !!priv->cm.srq;
 }
 
+static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
+{
+	struct ipoib_dev_priv *priv = netdev_priv(dev);
+	return priv->cm.max_cm_mtu;
+}
+
 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx);
 int ipoib_cm_dev_open(struct net_device *dev);
 void ipoib_cm_dev_stop(struct net_device *dev);
@@ -554,6 +560,11 @@ static inline int ipoib_cm_has_srq(struct net_device *dev)
 	return 0;
 }
 
+static inline unsigned int ipoib_cm_max_mtu(struct net_device *dev)
+{
+	return 0;
+}
+
 static inline
 void ipoib_cm_send(struct net_device *dev, struct sk_buff *skb, struct ipoib_cm_tx *tx)
 {
diff --git a/drivers/infiniband/ulp/ipoib/ipoib_main.c b/drivers/infiniband/ulp/ipoib/ipoib_main.c
index e499626..d733045 100644
--- a/drivers/infiniband/ulp/ipoib/ipoib_main.c
+++ b/drivers/infiniband/ulp/ipoib/ipoib_main.c
@@ -183,7 +183,7 @@ static int ipoib_change_mtu(struct net_device *dev, int new_mtu)
 
 	/* dev->mtu > 2K ==> connected mode */
 	if (ipoib_cm_admin_enabled(dev)) {
-		if (new_mtu > priv->cm.max_cm_mtu)
+		if (new_mtu > ipoib_cm_max_mtu(dev))
 			return -EINVAL;
 
 		if (new_mtu > priv->mcast_mtu)
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/