Only provide ctnetlink_label_size when it is used,
which is when CONFIG_NF_CONNTRACK_EVENTS is configured.
Flagged by clang-18 W=1 builds as:
.../nf_conntrack_netlink.c:385:19: warning: unused function 'ctnetlink_label_size' [-Wunused-function]
385 | static inline int ctnetlink_label_size(const struct nf_conn *ct)
| ^~~~~~~~~~~~~~~~~~~~
Found by manually tweaking .config.
Compile tested only.
Link: https://lore.kernel.org/netfilter-devel/20240909151712.GZ2097826@xxxxxxxxxx/
Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Signed-off-by: Simon Horman <horms@xxxxxxxxxx>
---
net/netfilter/nf_conntrack_netlink.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index f1f7dff08953..cac48277a7d5 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -382,6 +382,7 @@ static int ctnetlink_dump_secctx(struct sk_buff *skb, const struct nf_conn *ct)
#define ctnetlink_dump_secctx(a, b) (0)
#endif
+#ifdef CONFIG_NF_CONNTRACK_EVENTS
static inline int ctnetlink_label_size(const struct nf_conn *ct)
{
struct nf_conn_labels *labels = nf_ct_labels_find(ct);
@@ -390,6 +391,7 @@ static inline int ctnetlink_label_size(const struct nf_conn *ct)
return 0;
return nla_total_size(sizeof(labels->bits));
}
+#endif
static int
ctnetlink_dump_labels(struct sk_buff *skb, const struct nf_conn *ct)
--
2.45.2
