The mvneta_eth_tool_ops is only used internally in mvneta driver, so
make it static.
Signed-off-by: NJisheng Zhang <jszhang@marvell.com>
Acked-by: NThomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>