From db85e4bf22e7ef38c58e4684bf2fd30608f9b96e Mon Sep 17 00:00:00 2001
From: Beniamino Galvani <bgalvani@redhat.com>
Date: Fri, 2 Jan 2026 16:37:03 +0100
Subject: [PATCH] bpf: clat: add missing "break" statements

---
 src/core/bpf/clat.bpf.c  | 4 ++++
 src/core/bpf/meson.build | 2 ++
 2 files changed, 6 insertions(+)

diff --git a/src/core/bpf/clat.bpf.c b/src/core/bpf/clat.bpf.c
index ed87f81409..e4dd169364 100644
--- a/src/core/bpf/clat.bpf.c
+++ b/src/core/bpf/clat.bpf.c
@@ -209,6 +209,7 @@ rewrite_icmp(struct iphdr *iph, struct ipv6hdr *ip6h, struct __sk_buff *skb)
             icmp6.icmp6_type    = ICMPV6_PARAMPROB;
             icmp6.icmp6_code    = ICMPV6_UNK_NEXTHDR;
             icmp6.icmp6_pointer = bpf_htonl(offsetof(struct ipv6hdr, nexthdr));
+            break;
         case ICMP_PORT_UNREACH:
             icmp6.icmp6_code = ICMPV6_PORT_UNREACH;
             break;
@@ -222,11 +223,13 @@ rewrite_icmp(struct iphdr *iph, struct ipv6hdr *ip6h, struct __sk_buff *skb)
             if (mtu < 1280)
                 mtu = 1280;
             icmp6.icmp6_mtu = bpf_htonl(mtu);
+            break;
         case ICMP_NET_ANO:
         case ICMP_HOST_ANO:
         case ICMP_PKT_FILTERED:
         case ICMP_PREC_CUTOFF:
             icmp6.icmp6_code = ICMPV6_ADM_PROHIBITED;
+            break;
         default:
             return -1;
         }
@@ -271,6 +274,7 @@ rewrite_icmp(struct iphdr *iph, struct ipv6hdr *ip6h, struct __sk_buff *skb)
         default:
             return -1;
         }
+        break;
     default:
         return -1;
     }
diff --git a/src/core/bpf/meson.build b/src/core/bpf/meson.build
index 0ba2af16a9..39b978dd75 100644
--- a/src/core/bpf/meson.build
+++ b/src/core/bpf/meson.build
@@ -97,6 +97,7 @@ endif
 bpf_clang_flags = [
   '-std=gnu17',
   '-Wunused',
+  '-Wimplicit-fallthrough',
   '-Wno-compare-distinct-pointer-types',
   '-fno-stack-protector',
   '-O2',
@@ -109,6 +110,7 @@ bpf_clang_flags = [
 bpf_gcc_flags = [
   '-std=gnu17',
   '-Wunused',
+  '-Wimplicit-fallthrough',
   '-fno-stack-protector',
   '-fno-ssa-phiopt',
   '-O2',