[PATCH 1/2] net: netrom: mark expected switch fall-throughs

From: Gustavo A. R. Silva
Date: Thu Oct 19 2017 - 13:41:57 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/netrom/nr_route.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c
index 0c59354..fc9cadc 100644
--- a/net/netrom/nr_route.c
+++ b/net/netrom/nr_route.c
@@ -279,6 +279,7 @@ static int __must_check nr_add_node(ax25_address *nr, const char *mnemonic,
nr_node->routes[1] = nr_node->routes[2];
nr_node->routes[2] = nr_route;
}
+ /* fall through */
case 2:
if (nr_node->routes[1].quality > nr_node->routes[0].quality) {
switch (nr_node->which) {
@@ -384,6 +385,7 @@ 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:
@@ -506,7 +508,7 @@ static int nr_dec_obs(void)
switch (i) {
case 0:
s->routes[0] = s->routes[1];
- /* Fallthrough */
+ /* fall through */
case 1:
s->routes[1] = s->routes[2];
case 2:
@@ -553,6 +555,7 @@ 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:
--
2.7.4