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Message-Id: <20200304101318.5225-5-lmb@cloudflare.com>
Date:   Wed,  4 Mar 2020 11:13:09 +0100
From:   Lorenz Bauer <lmb@...udflare.com>
To:     john.fastabend@...il.com, Eric Dumazet <edumazet@...gle.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>
Cc:     kernel-team@...udflare.com, Lorenz Bauer <lmb@...udflare.com>,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        bpf@...r.kernel.org
Subject: [PATCH bpf-next v3 04/12] bpf: tcp: guard declarations with CONFIG_NET_SOCK_MSG

tcp_bpf.c is only included in the build if CONFIG_NET_SOCK_MSG is
selected. The declaration should therefore be guarded as such.

Signed-off-by: Lorenz Bauer <lmb@...udflare.com>
Acked-by: John Fastabend <john.fastabend@...il.com>
---
 include/net/tcp.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/net/tcp.h b/include/net/tcp.h
index ccf39d80b695..ad3abeaa703e 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -2195,6 +2195,7 @@ void tcp_update_ulp(struct sock *sk, struct proto *p,
 struct sk_msg;
 struct sk_psock;
 
+#ifdef CONFIG_NET_SOCK_MSG
 int tcp_bpf_init(struct sock *sk);
 int tcp_bpf_sendmsg_redir(struct sock *sk, struct sk_msg *msg, u32 bytes,
 			  int flags);
@@ -2202,13 +2203,12 @@ int tcp_bpf_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
 		    int nonblock, int flags, int *addr_len);
 int __tcp_bpf_recvmsg(struct sock *sk, struct sk_psock *psock,
 		      struct msghdr *msg, int len, int flags);
-#ifdef CONFIG_NET_SOCK_MSG
 void tcp_bpf_clone(const struct sock *sk, struct sock *newsk);
 #else
 static inline void tcp_bpf_clone(const struct sock *sk, struct sock *newsk)
 {
 }
-#endif
+#endif /* CONFIG_NET_SOCK_MSG */
 
 /* Call BPF_SOCK_OPS program that returns an int. If the return value
  * is < 0, then the BPF op failed (for example if the loaded BPF
-- 
2.20.1

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