linux-kernel - [PATCH] tipc: mark expected switch fall-throughs

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Message-ID: <20180704211359.GA9836@embeddedor.com>
Date:   Wed, 4 Jul 2018 16:13:59 -0500
From:   "Gustavo A. R. Silva" <gustavo@...eddedor.com>
To:     Jon Maloy <jon.maloy@...csson.com>,
        Ying Xue <ying.xue@...driver.com>,
        "David S. Miller" <davem@...emloft.net>
Cc:     netdev@...r.kernel.org, tipc-discussion@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavo@...eddedor.com>
Subject: [PATCH] tipc: mark expected switch fall-throughs

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

Warning level 2 was used: -Wimplicit-fallthrough=2

Signed-off-by: Gustavo A. R. Silva <gustavo@...eddedor.com>
---
 net/tipc/bearer.c | 1 +
 net/tipc/link.c   | 1 +
 2 files changed, 2 insertions(+)

diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 2dfb492..fd6d8f1 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -610,6 +610,7 @@ static int tipc_l2_device_event(struct notifier_block *nb, unsigned long evt,
 	case NETDEV_CHANGE:
 		if (netif_carrier_ok(dev))
 			break;
+		/* else: fall through */
 	case NETDEV_UP:
 		test_and_set_bit_lock(0, &b->up);
 		break;
diff --git a/net/tipc/link.c b/net/tipc/link.c
index 695acb7..6386032 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1063,6 +1063,7 @@ static bool tipc_data_input(struct tipc_link *l, struct sk_buff *skb,
 			skb_queue_tail(mc_inputq, skb);
 			return true;
 		}
+		/* else: fall through */
 	case CONN_MANAGER:
 		skb_queue_tail(inputq, skb);
 		return true;
-- 
2.7.4