net: 3c509: mark expected switch fall-throughs

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

This patch fixes the following warnings:

drivers/net/ethernet/3com/3c509.c:1265:8: warning: this statement may fall through [-Wimplicit-fallthrough=]
drivers/net/ethernet/3com/3c509.c:1271:8: warning: this statement may fall through [-Wimplicit-fallthrough=]

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enabling
-Wimplicit-fallthrough.

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/3com/3c509.c b/drivers/net/ethernet/3com/3c509.c
index b223769..3da9799 100644 (file)
--- a/drivers/net/ethernet/3com/3c509.c
+++ b/drivers/net/ethernet/3com/3c509.c
@@ -1266,12 +1266,14 @@ el3_up(struct net_device *dev)
                                        pr_cont("Forcing 3c5x9b full-duplex mode");
                                        break;
                                }
+                               /* fall through */
                        case 8:
                                /* set full-duplex mode based on eeprom config setting */
                                if ((sw_info & 0x000f) && (sw_info & 0x8000)) {
                                        pr_cont("Setting 3c5x9b full-duplex mode (from EEPROM configuration bit)");
                                        break;
                                }
+                               /* fall through */
                        default:
                                /* xcvr=(0 || 4) OR user has an old 3c5x9 non "B" model */
                                pr_cont("Setting 3c5x9/3c5x9B half-duplex mode");