[PATCH][next] net: 3c509: Fix fall-through warnings for Clang

[Gustavo A. R. Silva]

In preparation to enable -Wimplicit-fallthrough for Clang, fix a warning
by explicitly adding a break statement instead of just letting the code
fall through to the next case.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavo...@kernel.org>
---
 drivers/net/ethernet/3com/3c509.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/3com/3c509.c 
b/drivers/net/ethernet/3com/3c509.c
index 53e1f7e07959..96cc5fc36eb5 100644
--- a/drivers/net/ethernet/3com/3c509.c
+++ b/drivers/net/ethernet/3com/3c509.c
@@ -1051,6 +1051,7 @@ el3_netdev_get_ecmd(struct net_device *dev, struct 
ethtool_link_ksettings *cmd)
                break;
        case 3:
                cmd->base.port = PORT_BNC;
+               break;
        default:
                break;
        }
-- 
2.27.0