net: netrom: nr_route: mark expected switch fall-throughs

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

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c
index fba4b4c8efaff1814b13cda2dbda440b0dfea640..75e6ba970fde726c74ea9b33afe4522693c890b1 100644 (file)
--- a/net/netrom/nr_route.c
+++ b/net/netrom/nr_route.c
@@ -265,6 +265,7 @@ static int __must_check nr_add_node(ax25_address *nr, const char *mnemonic,
        case 3:
                re_sort_routes(nr_node, 0, 1);
                re_sort_routes(nr_node, 1, 2);
+               /* fall through */
        case 2:
                re_sort_routes(nr_node, 0, 1);
        case 1:
@@ -357,6 +358,7 @@ static int nr_del_node(ax25_address *callsign, ax25_address *neighbour, struct n
                                switch (i) {
                                case 0:
                                        nr_node->routes[0] = nr_node->routes[1];
+                                       /* fall through */
                                case 1:
                                        nr_node->routes[1] = nr_node->routes[2];
                                case 2:
@@ -526,6 +528,7 @@ void nr_rt_device_down(struct net_device *dev)
                                                switch (i) {
                                                case 0:
                                                        t->routes[0] = t->routes[1];
+                                                       /* fall through */
                                                case 1:
                                                        t->routes[1] = t->routes[2];
                                                case 2: