net: sched: 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>

10 files changed, 10 insertions, 0 deletions

diff --git a/net/sched/sch_cbq.c b/net/sched/sch_cbq.c
index c3b92d62190e7..6361be7881f10 100644
--- a/net/sched/sch_cbq.c
+++ b/net/sched/sch_cbq.c
@@ -255,6 +255,7 @@ cbq_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
 		case TC_ACT_STOLEN:
 		case TC_ACT_TRAP:
 			*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
+			/* fall through */
 		case TC_ACT_SHOT:
 			return NULL;
 		case TC_ACT_RECLASSIFY:
diff --git a/net/sched/sch_drr.c b/net/sched/sch_drr.c
index 753dc7a77b60e..5bbcef3dcd8ca 100644
--- a/net/sched/sch_drr.c
+++ b/net/sched/sch_drr.c
@@ -321,6 +321,7 @@ static struct drr_class *drr_classify(struct sk_buff *skb, struct Qdisc *sch,
 		case TC_ACT_STOLEN:
 		case TC_ACT_TRAP:
 			*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
+			/* fall through */
 		case TC_ACT_SHOT:
 			return NULL;
 		}
diff --git a/net/sched/sch_fq_codel.c b/net/sched/sch_fq_codel.c
index 3c40edeff1e88..0305d791ea943 100644
--- a/net/sched/sch_fq_codel.c
+++ b/net/sched/sch_fq_codel.c
@@ -105,6 +105,7 @@ static unsigned int fq_codel_classify(struct sk_buff *skb, struct Qdisc *sch,
 		case TC_ACT_QUEUED:
 		case TC_ACT_TRAP:
 			*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
+			/* fall through */
 		case TC_ACT_SHOT:
 			return 0;
 		}
diff --git a/net/sched/sch_hfsc.c b/net/sched/sch_hfsc.c
index a692184bd333a..d04068a97d81f 100644
--- a/net/sched/sch_hfsc.c
+++ b/net/sched/sch_hfsc.c
@@ -1144,6 +1144,7 @@ hfsc_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
 		case TC_ACT_STOLEN:
 		case TC_ACT_TRAP:
 			*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
+			/* fall through */
 		case TC_ACT_SHOT:
 			return NULL;
 		}
diff --git a/net/sched/sch_htb.c b/net/sched/sch_htb.c
index 57be73c0e1d25..fa0380730ff05 100644
--- a/net/sched/sch_htb.c
+++ b/net/sched/sch_htb.c
@@ -244,6 +244,7 @@ static struct htb_class *htb_classify(struct sk_buff *skb, struct Qdisc *sch,
 		case TC_ACT_STOLEN:
 		case TC_ACT_TRAP:
 			*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
+			/* fall through */
 		case TC_ACT_SHOT:
 			return NULL;
 		}
diff --git a/net/sched/sch_multiq.c b/net/sched/sch_multiq.c
index 31e0a284eeff9..012216386c0b7 100644
--- a/net/sched/sch_multiq.c
+++ b/net/sched/sch_multiq.c
@@ -54,6 +54,7 @@ multiq_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
 	case TC_ACT_QUEUED:
 	case TC_ACT_TRAP:
 		*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
+		/* fall through */
 	case TC_ACT_SHOT:
 		return NULL;
 	}
diff --git a/net/sched/sch_prio.c b/net/sched/sch_prio.c
index 95fad348c8d78..2c79559a0d310 100644
--- a/net/sched/sch_prio.c
+++ b/net/sched/sch_prio.c
@@ -50,6 +50,7 @@ prio_classify(struct sk_buff *skb, struct Qdisc *sch, int *qerr)
 		case TC_ACT_QUEUED:
 		case TC_ACT_TRAP:
 			*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
+			/* fall through */
 		case TC_ACT_SHOT:
 			return NULL;
 		}
diff --git a/net/sched/sch_qfq.c b/net/sched/sch_qfq.c
index 8694c7b6d2b19..6962b37a3ad31 100644
--- a/net/sched/sch_qfq.c
+++ b/net/sched/sch_qfq.c
@@ -709,6 +709,7 @@ static struct qfq_class *qfq_classify(struct sk_buff *skb, struct Qdisc *sch,
 		case TC_ACT_STOLEN:
 		case TC_ACT_TRAP:
 			*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
+			/* fall through */
 		case TC_ACT_SHOT:
 			return NULL;
 		}
diff --git a/net/sched/sch_sfb.c b/net/sched/sch_sfb.c
index 487d375f5a066..0678debdd856f 100644
--- a/net/sched/sch_sfb.c
+++ b/net/sched/sch_sfb.c
@@ -268,6 +268,7 @@ static bool sfb_classify(struct sk_buff *skb, struct tcf_proto *fl,
 		case TC_ACT_QUEUED:
 		case TC_ACT_TRAP:
 			*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
+			/* fall through */
 		case TC_ACT_SHOT:
 			return false;
 		}
diff --git a/net/sched/sch_sfq.c b/net/sched/sch_sfq.c
index 5a9c95149c5c1..890f4a4564e71 100644
--- a/net/sched/sch_sfq.c
+++ b/net/sched/sch_sfq.c
@@ -190,6 +190,7 @@ static unsigned int sfq_classify(struct sk_buff *skb, struct Qdisc *sch,
 		case TC_ACT_QUEUED:
 		case TC_ACT_TRAP:
 			*qerr = NET_XMIT_SUCCESS | __NET_XMIT_STOLEN;
+			/* fall through */
 		case TC_ACT_SHOT:
 			return 0;
 		}