[PATCH RESEND][next] net: netrom: Fix fall-through warnings for Clang

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding multiple break statements instead of
letting the code fall through to the next case.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
---
 net/netrom/nr_route.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c
index 78da5eab252a..de9821b6a62a 100644
--- a/net/netrom/nr_route.c
+++ b/net/netrom/nr_route.c

@@ -266,6 +266,7 @@ static int __must_check nr_add_node(ax25_address *nr, const char *mnemonic,
 		fallthrough;
 	case 2:
 		re_sort_routes(nr_node, 0, 1);
+		break;
 	case 1:
 		break;
 	}

@@ -359,6 +360,7 @@ static int nr_del_node(ax25_address *callsign, ax25_address *neighbour, struct n
 					fallthrough;
 				case 1:
 					nr_node->routes[1] = nr_node->routes[2];
+					break;
 				case 2:
 					break;
 				}

@@ -482,6 +484,7 @@ static int nr_dec_obs(void)
 					fallthrough;
 				case 1:
 					s->routes[1] = s->routes[2];
+					break;
 				case 2:
 					break;
 				}

@@ -529,6 +532,7 @@ void nr_rt_device_down(struct net_device *dev)
 							fallthrough;
 						case 1:
 							t->routes[1] = t->routes[2];
+							break;
 						case 2:
 							break;
 						}

-- 
2.27.0

Hi all,

Friendly ping: who can take this, please?

Thanks
--
Gustavo

On 3/5/21 03:22, Gustavo A. R. Silva wrote:

Hi Dave,

I haven't received any feedback about these patches after resending them.

We had thousands of these warnings and now we are down to less than a hundred in
linux-next. I'm planning to take these patches in my -next tree for 5.14 as
I'm planning to enable -Wimplicit-fallthrough for Clang for that release, too.

Are you OK with this?

Thanks
--
Gustavo

On 4/20/21 15:11, Gustavo A. R. Silva wrote:

Hi all,

Friendly ping: who can take this, please?

Thanks
--
Gustavo

On 3/5/21 03:22, Gustavo A. R. Silva wrote:

quoted

In preparation to enable -Wimplicit-fallthrough for Clang, fix multiple
warnings by explicitly adding multiple break statements instead of
letting the code fall through to the next case.

Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
---
 net/netrom/nr_route.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/netrom/nr_route.c b/net/netrom/nr_route.c
index 78da5eab252a..de9821b6a62a 100644
--- a/net/netrom/nr_route.c
+++ b/net/netrom/nr_route.c

@@ -266,6 +266,7 @@ static int __must_check nr_add_node(ax25_address *nr, const char *mnemonic,
 		fallthrough;
 	case 2:
 		re_sort_routes(nr_node, 0, 1);
+		break;
 	case 1:
 		break;
 	}

@@ -359,6 +360,7 @@ static int nr_del_node(ax25_address *callsign, ax25_address *neighbour, struct n
 					fallthrough;
 				case 1:
 					nr_node->routes[1] = nr_node->routes[2];
+					break;
 				case 2:
 					break;
 				}

@@ -482,6 +484,7 @@ static int nr_dec_obs(void)
 					fallthrough;
 				case 1:
 					s->routes[1] = s->routes[2];
+					break;
 				case 2:
 					break;
 				}

@@ -529,6 +532,7 @@ void nr_rt_device_down(struct net_device *dev)
 							fallthrough;
 						case 1:
 							t->routes[1] = t->routes[2];
+							break;
 						case 2:
 							break;
 						}