It is a good measure to ensure correctness if the structures that are
meant to remain constant are only processed by functions that thake
constant arguments.
Signed-off-by: NVladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: NAlexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>