bpf: Fix net/core/filter build errors when INET is not enabled
Fix build errors when CONFIG_INET is not set/enabled. (.text+0x2b1b): undefined reference to `tcp_prot' (.text+0x2b3b): undefined reference to `tcp_prot' Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Acked-by: Yonghong Song <yhs@fb.com> Link: https://lore.kernel.org/bpf/b1a858ec-7e04-56bc-248a-62cb9bbee726@infradead.org
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@ -9328,8 +9328,10 @@ const struct bpf_func_proto bpf_skc_to_tcp_sock_proto = {
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BPF_CALL_1(bpf_skc_to_tcp_timewait_sock, struct sock *, sk)
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{
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#ifdef CONFIG_INET
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if (sk->sk_prot == &tcp_prot && sk->sk_state == TCP_TIME_WAIT)
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return (unsigned long)sk;
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#endif
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#if IS_BUILTIN(CONFIG_IPV6)
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if (sk->sk_prot == &tcpv6_prot && sk->sk_state == TCP_TIME_WAIT)
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@ -9350,8 +9352,10 @@ const struct bpf_func_proto bpf_skc_to_tcp_timewait_sock_proto = {
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BPF_CALL_1(bpf_skc_to_tcp_request_sock, struct sock *, sk)
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{
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#ifdef CONFIG_INET
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if (sk->sk_prot == &tcp_prot && sk->sk_state == TCP_NEW_SYN_RECV)
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return (unsigned long)sk;
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#endif
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#if IS_BUILTIN(CONFIG_IPV6)
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if (sk->sk_prot == &tcpv6_prot && sk->sk_state == TCP_NEW_SYN_RECV)
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