netdev - Re: [PATCH 1/9] IB/ipoib: Bound the net device to the 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:	Mon, 15 Oct 2007 14:22:08 -0400
From:	Jeff Garzik <jgarzik@...ox.com>
To:	Jay Vosburgh <fubar@...ibm.com>
CC:	netdev@...r.kernel.org, Moni Shoua <monis@...taire.com>
Subject: Re: [PATCH 1/9] IB/ipoib: Bound the net device to the ipoib_neigh
 structue

Jay Vosburgh wrote:
> From: Moni Shoua <monis@...taire.com>
> 
> IPoIB uses a two layer neighboring scheme, such that for each struct neighbour
> whose device is an ipoib one, there is a struct ipoib_neigh buddy which is
> created on demand at the tx flow by an ipoib_neigh_alloc(skb->dst->neighbour)
> call.
> 
> When using the bonding driver, neighbours are created by the net stack on behalf
> of the bonding (master) device. On the tx flow the bonding code gets an skb such
> that skb->dev points to the master device, it changes this skb to point on the
> slave device and calls the slave hard_start_xmit function.
> 
> Under this scheme, ipoib_neigh_destructor assumption that for each struct
> neighbour it gets, n->dev is an ipoib device and hence netdev_priv(n->dev)
> can be casted to struct ipoib_dev_priv is buggy.
> 
> To fix it, this patch adds a dev field to struct ipoib_neigh which is used
> instead of the struct neighbour dev one, when n->dev->flags has the
> IFF_MASTER bit set.
> 
> Signed-off-by: Moni Shoua <monis at voltaire.com>
> Signed-off-by: Or Gerlitz <ogerlitz at voltaire.com>
> Acked-by: Roland Dreier <rdreier@...co.com>

applied 1-9, yay!


-
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