From 481b7f2f59b5fe992a6638c13e21687f097a5a6a Mon Sep 17 00:00:00 2001
From: Beniamino Galvani <bgalvani@redhat.com>
Date: Wed, 17 Dec 2025 18:25:12 +0100
Subject: [PATCH] bpf: clat: add comment about debugging

---
 src/core/bpf/clat.bpf.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/core/bpf/clat.bpf.c b/src/core/bpf/clat.bpf.c
index 67ecf4ec73..788c4fec7e 100644
--- a/src/core/bpf/clat.bpf.c
+++ b/src/core/bpf/clat.bpf.c
@@ -34,6 +34,9 @@ char _license[] SEC("license") = "GPL";
 struct clat_config config;
 
 #ifdef DEBUG
+/* Note: when enabling debugging, you also need to add CAP_PERFMON
+ * to the CapabilityBoundingSet of the NM systemd unit. The messages
+ * will be printed to /sys/kernel/debug/tracing/trace_pipe */
 #define DBG(fmt, ...)                                              \
     ({                                                             \
         char ____fmt[] = "clat: " fmt;                             \