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[ Upstream commitcb07d915bf] Add rcu locks when accessing netdev when processing route request and tunnel keep alive messages received from hardware. Fixes:8e6a9046b6("nfp: flower vxlan neighbour offload") Fixes:856f5b1357("nfp: flower vxlan neighbour keep-alive") Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com> Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: John Hurley <john.hurley@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>