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authorDoug Ledford <dledford@redhat.com>2013-04-01 21:25:30 +0000
committerRoland Dreier <roland@purestorage.com>2013-04-16 22:57:09 -0700
commit83bdd3b96cad1b0c5b8e257ed1f4f38eb2cb844b (patch)
tree19acb9f581b13d8ca184de5c67341adbcb2c05d6 /drivers/infiniband/hw
parent41ef2d5678d83af030125550329b6ae8b74618fa (diff)
IPoIB: Fix ipoib_hard_header() return value
If you have a patched up dhcp server (and dhclient), they will use AF_PACKET/SOCK_DGRAM pair to send dhcp packets over IPoIB. However, when testing an upstream kernel, this has been broken for a very long time (I tested 2.6.34, 2.6.38, 3.0, 3.1, 3.8, HEAD). It turns out that the hard_header routine in ipoib is not following the API and is returning 0 even when it pushed data onto the skb. This then causes af_packet.c to overwrite the header just pushed with data from user space. Fixing this gets DHCP working on IPoIB. Signed-off-by: Doug Ledford <dledford@redhat.com> Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw')
0 files changed, 0 insertions, 0 deletions