From: Jeff Kirsher <redacted>
Date: Tue, 29 Jun 2010 21:29:00 -0700

From: Guillaume Gaudonville <redacted>

In driver ixgbe, ixgbe_atr may cause crashes for non-ipv4 packets. Just
add a test to check skb->protocol.  It may crash on short packets due
to ip_hdr() access.

Signed-off-by: Guillaume Gaudonville <redacted>
Acked-by: Peter P Waskiewicz Jr <redacted>
Signed-off-by: Don Skidmore <redacted>
Signed-off-by: Jeff Kirsher <redacted>

Applied.