net: macb: Mark expected switch fall-through

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/cadence/macb_ptp.c b/drivers/net/ethernet/cadence/macb_ptp.c
index 678835136bf8069326067feaa46f8465db4e38d4..cd5296b842290302a5904b4c590e51fdea741bbd 100644 (file)
--- a/drivers/net/ethernet/cadence/macb_ptp.c
+++ b/drivers/net/ethernet/cadence/macb_ptp.c
@@ -466,6 +466,7 @@ int gem_set_hwtst(struct net_device *dev, struct ifreq *ifr, int cmd)
        case HWTSTAMP_TX_ONESTEP_SYNC:
                if (gem_ptp_set_one_step_sync(bp, 1) != 0)
                        return -ERANGE;
+               /* fall through */
        case HWTSTAMP_TX_ON:
                tx_bd_control = TSTAMP_ALL_FRAMES;
                break;