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netfilter: bpf: Only define get_proto_defrag_hook() if necessary

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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: 91721c2d02 ("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>
Link: https://lore.kernel.org/r/b128b6489f0066db32c4772ae4aaee1480495929.1690840454.git.dxu@dxuuu.xyz
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
This commit is contained in:
Daniel Xu 2023-07-31 15:55:00 -06:00 committed by Alexei Starovoitov
parent e99688eba2
commit 81584c23f2
1 changed files with 2 additions and 0 deletions
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2
net/netfilter/nf_bpf_link.c
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@ -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)
{