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netfilter: bpf: Only define get_proto_defrag_hook() if necessary
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>
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1 changed files with 2 additions and 0 deletions
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@ -28,6 +28,7 @@ struct bpf_nf_link {
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const struct nf_defrag_hook *defrag_hook;
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};
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#if IS_ENABLED(CONFIG_NF_DEFRAG_IPV4) || IS_ENABLED(CONFIG_NF_DEFRAG_IPV6)
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static const struct nf_defrag_hook *
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get_proto_defrag_hook(struct bpf_nf_link *link,
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const struct nf_defrag_hook __rcu *global_hook,
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@ -68,6 +69,7 @@ get_proto_defrag_hook(struct bpf_nf_link *link,
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return hook;
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}
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#endif
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static int bpf_nf_enable_defrag(struct bpf_nf_link *link)
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{
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