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

From: Gustavo A. R. Silva
Date: Fri Oct 20 2017 - 13:23:47 EST


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

Signed-off-by: Gustavo A. R. Silva <garsilva@xxxxxxxxxxxxxx>
---
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/tipc/bearer.c | 1 +
net/tipc/link.c | 3 ++-
net/tipc/socket.c | 4 ++--
3 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/tipc/bearer.c b/net/tipc/bearer.c
index 47ec121..786dcfd 100644
--- a/net/tipc/bearer.c
+++ b/net/tipc/bearer.c
@@ -615,6 +615,7 @@ static int tipc_l2_device_event(struct notifier_block *nb, unsigned long evt,
case NETDEV_CHANGE:
if (netif_carrier_ok(dev))
break;
+ /* 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 870b9b8..fc1714e 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1051,6 +1051,7 @@ static bool tipc_data_input(struct tipc_link *l, struct sk_buff *skb,
skb_queue_tail(mc_inputq, skb);
return true;
}
+ /* fall through */
case CONN_MANAGER:
skb_queue_tail(inputq, skb);
return true;
@@ -1463,7 +1464,7 @@ static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb,
if ((less_eq(msg_session(hdr), l->peer_session)) &&
(l->peer_session != ANY_SESSION))
break;
- /* fall thru' */
+ /* fall through */

case ACTIVATE_MSG:

diff --git a/net/tipc/socket.c b/net/tipc/socket.c
index 2bbab4f..ce6cd01 100644
--- a/net/tipc/socket.c
+++ b/net/tipc/socket.c
@@ -730,7 +730,7 @@ static unsigned int tipc_poll(struct file *file, struct socket *sock,
case TIPC_ESTABLISHED:
if (!tsk->cong_link_cnt && !tsk_conn_cong(tsk))
revents |= POLLOUT;
- /* fall thru' */
+ /* fall through */
case TIPC_LISTEN:
case TIPC_CONNECTING:
if (skb)
@@ -2341,7 +2341,7 @@ static int tipc_connect(struct socket *sock, struct sockaddr *dest,
* case is EINPROGRESS, rather than EALREADY.
*/
res = -EINPROGRESS;
- /* fall thru' */
+ /* fall through */
case TIPC_CONNECTING:
if (!timeout) {
if (previous == TIPC_CONNECTING)
--
2.7.4