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

Signed-off-by: Gustavo A. R. Silva <redacted>
---
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/netrom/nr_in.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netrom/nr_in.c b/net/netrom/nr_in.c
index 80dbd0b..fbfdae4 100644
--- a/net/netrom/nr_in.c
+++ b/net/netrom/nr_in.c

@@ -125,7 +125,7 @@ static int nr_state2_machine(struct sock *sk, struct sk_buff *skb,
 
 	case NR_DISCREQ:
 		nr_write_internal(sk, NR_DISCACK);
-
+		/* fall through */
 	case NR_DISCACK:
 		nr_disconnect(sk, 0);
 		break;

-- 
2.7.4