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IPoIB: Stop lying about hard_header_len and use skb->cb to stash LL addresses

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Commit a0417fa3a1 ("net: Make qdisc_skb_cb upper size bound
explicit.") made it possible for a netdev driver to use skb->cb
between its header_ops.create method and its .ndo_start_xmit
method.  Use this in ipoib_hard_header() to stash away the LL address
(GID + QPN), instead of the "ipoib_pseudoheader" hack.  This allows
IPoIB to stop lying about its hard_header_len, which will let us fix
the L2 check for GRO.

Signed-off-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Roland Dreier 2012-02-07 14:51:21 +00:00 • committed by David S. Miller
commit 936d7de3d7
3 changed files with 24 additions and 47 deletions
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