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bpf: Fix net/core/filter build errors when INET is not enabled

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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
This commit is contained in:
Randy Dunlap 2020-06-30 10:29:10 -07:00 committed by Alexei Starovoitov
parent 64f0013c07
commit 6b207d66aa
1 changed files with 4 additions and 0 deletions
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4
net/core/filter.c
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@ -9328,8 +9328,10 @@ const struct bpf_func_proto bpf_skc_to_tcp_sock_proto = {
BPF_CALL_1(bpf_skc_to_tcp_timewait_sock, struct sock *, sk)
{
#ifdef CONFIG_INET
if (sk->sk_prot == &tcp_prot && sk->sk_state == TCP_TIME_WAIT)
return (unsigned long)sk;
#endif
#if IS_BUILTIN(CONFIG_IPV6)
if (sk->sk_prot == &tcpv6_prot && sk->sk_state == TCP_TIME_WAIT)
@ -9350,8 +9352,10 @@ const struct bpf_func_proto bpf_skc_to_tcp_timewait_sock_proto = {
BPF_CALL_1(bpf_skc_to_tcp_request_sock, struct sock *, sk)
{
#ifdef CONFIG_INET
if (sk->sk_prot == &tcp_prot && sk->sk_state == TCP_NEW_SYN_RECV)
return (unsigned long)sk;
#endif
#if IS_BUILTIN(CONFIG_IPV6)
if (sk->sk_prot == &tcpv6_prot && sk->sk_state == TCP_NEW_SYN_RECV)