linux-hardening - [PATCH RESEND][next] tipc: Fix fall-through warnings for Clang

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Date:   Fri, 5 Mar 2021 03:25:04 -0600
From:   "Gustavo A. R. Silva" <gustavoars@...nel.org>
To:     Jon Maloy <jmaloy@...hat.com>, Ying Xue <ying.xue@...driver.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, tipc-discussion@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        linux-hardening@...r.kernel.org
Subject: [PATCH RESEND][next] tipc: Fix fall-through warnings for Clang

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

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@...nel.org>
---
 net/tipc/link.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/net/tipc/link.c b/net/tipc/link.c
index 115109259430..bcc426e16725 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -649,6 +649,7 @@ int tipc_link_fsm_evt(struct tipc_link *l, int evt)
 			break;
 		case LINK_FAILOVER_BEGIN_EVT:
 			l->state = LINK_FAILINGOVER;
+			break;
 		case LINK_FAILURE_EVT:
 		case LINK_RESET_EVT:
 		case LINK_ESTABLISH_EVT:
-- 
2.27.0