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Merge branch 'erspan-always-reports-output-key-to-userspace'
Lorenzo Bianconi says:
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erspan: always reports output key to userspace
Erspan protocol relies on output key to set session id header field.
However TUNNEL_KEY bit is cleared in order to not add key field to
the external GRE header and so the configured o_key is not reported
to userspace.
Fix the issue adding TUNNEL_KEY bit to the o_flags parameter dumping
device info
====================
Signed-off-by: David S. Miller <davem@davemloft.net>