public inbox for bpf@vger.kernel.org
 help / color / mirror / Atom feed
* [PATCH] netfilter: bpf: Only define get_proto_defrag_hook() if necessary
@ 2023-07-31 21:55 Daniel Xu
  2023-08-01  0:53 ` Alexei Starovoitov
  2023-08-01  1:00 ` patchwork-bot+netdevbpf
  0 siblings, 2 replies; 3+ messages in thread
From: Daniel Xu @ 2023-07-31 21:55 UTC (permalink / raw)
  To: kadlec, davem, pabeni, dxu, ast, edumazet, pablo, kuba, fw
  Cc: netfilter-devel, coreteam, netdev, linux-kernel, bpf,
	kernel test robot

Before, we were getting this warning:

  net/netfilter/nf_bpf_link.c:32:1: warning: 'get_proto_defrag_hook' defined but not used [-Wunused-function]

Guard the definition with CONFIG_NF_DEFRAG_IPV[4|6].

Fixes: 91721c2d02d3 ("netfilter: bpf: Support BPF_F_NETFILTER_IP_DEFRAG in netfilter link")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202307291213.fZ0zDmoG-lkp@intel.com/
Signed-off-by: Daniel Xu <dxu@dxuuu.xyz>
---
 net/netfilter/nf_bpf_link.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/net/netfilter/nf_bpf_link.c b/net/netfilter/nf_bpf_link.c
index 8fe594bbc7e2..e502ec00b2fe 100644
--- a/net/netfilter/nf_bpf_link.c
+++ b/net/netfilter/nf_bpf_link.c
@@ -28,6 +28,7 @@ struct bpf_nf_link {
 	const struct nf_defrag_hook *defrag_hook;
 };
 
+#if IS_ENABLED(CONFIG_NF_DEFRAG_IPV4) || IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
 static const struct nf_defrag_hook *
 get_proto_defrag_hook(struct bpf_nf_link *link,
 		      const struct nf_defrag_hook __rcu *global_hook,
@@ -68,6 +69,7 @@ get_proto_defrag_hook(struct bpf_nf_link *link,
 
 	return hook;
 }
+#endif
 
 static int bpf_nf_enable_defrag(struct bpf_nf_link *link)
 {
-- 
2.41.0


^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2023-08-01  1:00 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2023-07-31 21:55 [PATCH] netfilter: bpf: Only define get_proto_defrag_hook() if necessary Daniel Xu
2023-08-01  0:53 ` Alexei Starovoitov
2023-08-01  1:00 ` patchwork-bot+netdevbpf

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox