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authorTom Hughes <tom@compton.nu>2010-06-15 22:24:28 +0000
committerDavid S. Miller <davem@davemloft.net>2010-06-16 14:47:30 -0700
commitfa68a7822780fdc1295f7efb7e4313e62b447e75 (patch)
tree896a59f89b4f7a98cabc141cbfa30894536208bb /net
parent97553f7f3e7a0305d017df9cc6e9589f64878437 (diff)
downloadlinux-2.6.34-ux500-fa68a7822780fdc1295f7efb7e4313e62b447e75.tar.gz
Clear IFF_XMIT_DST_RELEASE for teql interfaces
https://bugzilla.kernel.org/show_bug.cgi?id=16183 The sch_teql module, which can be used to load balance over a set of underlying interfaces, stopped working after 2.6.30 and has been broken in all kernels since then for any underlying interface which requires the addition of link level headers. The problem is that the transmit routine relies on being able to access the destination address in the skb in order to do address resolution once it has decided which underlying interface it is going to transmit through. In 2.6.31 the IFF_XMIT_DST_RELEASE flag was introduced, and set by default for all interfaces, which causes the destination address to be released before the transmit routine for the interface is called. The solution is to clear that flag for teql interfaces. Signed-off-by: Tom Hughes <tom@compton.nu> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/sched/sch_teql.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/sched/sch_teql.c b/net/sched/sch_teql.c
index 3415b6ce1c0..807643bdcba 100644
--- a/net/sched/sch_teql.c
+++ b/net/sched/sch_teql.c
@@ -449,6 +449,7 @@ static __init void teql_master_setup(struct net_device *dev)
dev->tx_queue_len = 100;
dev->flags = IFF_NOARP;
dev->hard_header_len = LL_MAX_HEADER;
+ dev->priv_flags &= ~IFF_XMIT_DST_RELEASE;
}
static LIST_HEAD(master_dev_list);