[PATCH] net: rxrpc: mark expected switch fall-throughs

[Gustavo A. R. Silva]

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

Signed-off-by: Gustavo A. R. Silva <garsi...@embeddedor.com>
---
This code was tested by compilation only (GCC 7.2.0 was used).
Please, verify if the actual intention of the code is to fall through.

 net/rxrpc/af_rxrpc.c | 5 +++--
 net/rxrpc/input.c    | 2 +-
 net/rxrpc/sendmsg.c  | 1 +
 3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c
index fb17552..df4f7d5 100644
--- a/net/rxrpc/af_rxrpc.c
+++ b/net/rxrpc/af_rxrpc.c
@@ -246,6 +246,7 @@ static int rxrpc_listen(struct socket *sock, int backlog)
                        ret = 0;
                        break;
                }
+               /* fall through */
        default:
                ret = -EBUSY;
                break;
@@ -528,8 +529,7 @@ static int rxrpc_sendmsg(struct socket *sock, struct msghdr 
*m, size_t len)
 
                rx->local = local;
                rx->sk.sk_state = RXRPC_CLIENT_UNBOUND;
-               /* Fall through */
-
+               /* fall through */
        case RXRPC_CLIENT_UNBOUND:
        case RXRPC_CLIENT_BOUND:
                if (!m->msg_name &&
@@ -537,6 +537,7 @@ static int rxrpc_sendmsg(struct socket *sock, struct msghdr 
*m, size_t len)
                        m->msg_name = &rx->connect_srx;
                        m->msg_namelen = sizeof(rx->connect_srx);
                }
+               /* fall through */
        case RXRPC_SERVER_BOUND:
        case RXRPC_SERVER_LISTENING:
                ret = rxrpc_do_sendmsg(rx, m, len);
diff --git a/net/rxrpc/input.c b/net/rxrpc/input.c
index e56e23e..8bc6daf 100644
--- a/net/rxrpc/input.c
+++ b/net/rxrpc/input.c
@@ -1125,7 +1125,7 @@ void rxrpc_data_ready(struct sock *udp_sk)
        case RXRPC_PACKET_TYPE_BUSY:
                if (sp->hdr.flags & RXRPC_CLIENT_INITIATED)
                        goto discard;
-
+               /* fall through */
        case RXRPC_PACKET_TYPE_DATA:
                if (sp->hdr.callNumber == 0)
                        goto bad_message;
diff --git a/net/rxrpc/sendmsg.c b/net/rxrpc/sendmsg.c
index 9ea6f97..d245782 100644
--- a/net/rxrpc/sendmsg.c
+++ b/net/rxrpc/sendmsg.c
@@ -166,6 +166,7 @@ static void rxrpc_queue_packet(struct rxrpc_sock *rx, 
struct rxrpc_call *call,
                                          ktime_get_real());
                        if (!last)
                                break;
+                       /* fall through */
                case RXRPC_CALL_SERVER_SEND_REPLY:
                        call->state = RXRPC_CALL_SERVER_AWAIT_ACK;
                        rxrpc_notify_end_tx(rx, call, notify_end_tx);
-- 
2.7.4