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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>
This commit is contained in:
Gustavo A. R. Silva 2019-01-23 01:29:55 -06:00 committed by David S. Miller
parent f79e3365bc
commit d422a286e1
1 changed files with 2 additions and 0 deletions
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2
drivers/net/ethernet/3com/3c509.c
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@ -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");