From: Yafang Shao <laoar.shao@gmail.com>
Date: Thu, 17 Jan 2019 10:03:14 +0000 (+0800)
Subject: tcp: declare tcp_mmap() only when CONFIG_MMU is set
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=340a6f3d2d52a1b72f3454818e53293807f8f127;p=openwrt%2Fstaging%2Fblogic.git

tcp: declare tcp_mmap() only when CONFIG_MMU is set

Since tcp_mmap() is defined when CONFIG_MMU is set.

Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/include/net/tcp.h b/include/net/tcp.h
index e0a65c067662..5c950180d61b 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -406,8 +406,10 @@ int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
 		int flags, int *addr_len);
 int tcp_set_rcvlowat(struct sock *sk, int val);
 void tcp_data_ready(struct sock *sk);
+#ifdef CONFIG_MMU
 int tcp_mmap(struct file *file, struct socket *sock,
 	     struct vm_area_struct *vma);
+#endif
 void tcp_parse_options(const struct net *net, const struct sk_buff *skb,
 		       struct tcp_options_received *opt_rx,
 		       int estab, struct tcp_fastopen_cookie *foc);