Thread (12 messages) flat view 12 messages, 2 authors, 2021-03-23
STALE1981d REVIEWED: 1 (1M)

Revision v1 of 102 in this series; 1 review trailer (1 from subsystem maintainers).

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[PATCH net-next 02/10] netfilter: Fix fall-through warnings for Clang

From: Pablo Neira Ayuso <pablo@netfilter.org>
Date: 2021-03-22 23:57:39
Also in: netfilter-devel
Subsystem: netfilter, networking [general], the rest · Maintainers: Pablo Neira Ayuso, Florian Westphal, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds 

From: "Gustavo A. R. Silva" <gustavoars@kernel.org>

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

Link: https://github.com/KSPP/linux/issues/115
Acked-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/nf_conntrack_proto_dccp.c | 1 +
 net/netfilter/nf_tables_api.c           | 1 +
 net/netfilter/nft_ct.c                  | 1 +
 3 files changed, 3 insertions(+)

diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c
index db7479db8512..4f33307fa3cf 100644
--- a/net/netfilter/nf_conntrack_proto_dccp.c
+++ b/net/netfilter/nf_conntrack_proto_dccp.c
@@ -397,6 +397,7 @@ dccp_new(struct nf_conn *ct, const struct sk_buff *skb,
 			msg = "not picking up existing connection ";
 			goto out_invalid;
 		}
+		break;
 	case CT_DCCP_REQUEST:
 		break;
 	case CT_DCCP_INVALID:
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index 224c8e537cb3..083c112bee0b 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -8557,6 +8557,7 @@ static int nf_tables_check_loops(const struct nft_ctx *ctx,
 							data->verdict.chain);
 				if (err < 0)
 					return err;
+				break;
 			default:
 				break;
 			}
diff --git a/net/netfilter/nft_ct.c b/net/netfilter/nft_ct.c
index 882fe8648653..0592a9456084 100644
--- a/net/netfilter/nft_ct.c
+++ b/net/netfilter/nft_ct.c
@@ -527,6 +527,7 @@ static void __nft_ct_set_destroy(const struct nft_ctx *ctx, struct nft_ct *priv)
 	case NFT_CT_ZONE:
 		if (--nft_ct_pcpu_template_refcnt == 0)
 			nft_ct_tmpl_put_pcpu();
+		break;
 #endif
 	default:
 		break;
-- 
2.20.1
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