linux-kernel - [PATCH RESEND][next] rds: Fix fall-through warnings for Clang

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Message-ID: <20210305090612.GA139288@embeddedor>
Date:   Fri, 5 Mar 2021 03:06:12 -0600
From:   "Gustavo A. R. Silva" <gustavoars@...nel.org>
To:     Santosh Shilimkar <santosh.shilimkar@...cle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>
Cc:     netdev@...r.kernel.org, linux-rdma@...r.kernel.org,
        rds-devel@....oracle.com, linux-kernel@...r.kernel.org,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        linux-hardening@...r.kernel.org
Subject: [PATCH RESEND][next] rds: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding multiple break statements 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/rds/tcp_connect.c | 1 +
 net/rds/threads.c     | 2 ++
 2 files changed, 3 insertions(+)

diff --git a/net/rds/tcp_connect.c b/net/rds/tcp_connect.c
index 4e64598176b0..5461d77fff4f 100644
--- a/net/rds/tcp_connect.c
+++ b/net/rds/tcp_connect.c
@@ -78,6 +78,7 @@ void rds_tcp_state_change(struct sock *sk)
 	case TCP_CLOSE_WAIT:
 	case TCP_CLOSE:
 		rds_conn_path_drop(cp, false);
+		break;
 	default:
 		break;
 	}
diff --git a/net/rds/threads.c b/net/rds/threads.c
index 32dc50f0a303..1f424cbfcbb4 100644
--- a/net/rds/threads.c
+++ b/net/rds/threads.c
@@ -208,6 +208,7 @@ void rds_send_worker(struct work_struct *work)
 		case -ENOMEM:
 			rds_stats_inc(s_send_delayed_retry);
 			queue_delayed_work(rds_wq, &cp->cp_send_w, 2);
+			break;
 		default:
 			break;
 		}
@@ -232,6 +233,7 @@ void rds_recv_worker(struct work_struct *work)
 		case -ENOMEM:
 			rds_stats_inc(s_recv_delayed_retry);
 			queue_delayed_work(rds_wq, &cp->cp_recv_w, 2);
+			break;
 		default:
 			break;
 		}
-- 
2.27.0