[PATCH net-next] ipv6: sr: fix non static symbol warnings

[Wei Yongjun <weiyj.lk@gmail.com>]

From: Wei Yongjun <weiyongjun1@huawei.com>

Fixes the following sparse warnings:

net/ipv6/seg6_iptunnel.c:58:5: warning:
 symbol 'nla_put_srh' was not declared. Should it be static?
net/ipv6/seg6_iptunnel.c:238:5: warning:
 symbol 'seg6_input' was not declared. Should it be static?
net/ipv6/seg6_iptunnel.c:254:5: warning:
 symbol 'seg6_output' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
---
 net/ipv6/seg6_iptunnel.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/net/ipv6/seg6_iptunnel.c b/net/ipv6/seg6_iptunnel.c
index 6124e15..8558225 100644
--- a/net/ipv6/seg6_iptunnel.c
+++ b/net/ipv6/seg6_iptunnel.c
@@ -55,8 +55,8 @@ static const struct nla_policy seg6_iptunnel_policy[SEG6_IPTUNNEL_MAX + 1] = {
 	[SEG6_IPTUNNEL_SRH]	= { .type = NLA_BINARY },
 };
 
-int nla_put_srh(struct sk_buff *skb, int attrtype,
-		struct seg6_iptunnel_encap *tuninfo)
+static int nla_put_srh(struct sk_buff *skb, int attrtype,
+		       struct seg6_iptunnel_encap *tuninfo)
 {
 	struct seg6_iptunnel_encap *data;
 	struct nlattr *nla;
@@ -235,7 +235,7 @@ static int seg6_do_srh(struct sk_buff *skb)
 	return 0;
 }
 
-int seg6_input(struct sk_buff *skb)
+static int seg6_input(struct sk_buff *skb)
 {
 	int err;
 
@@ -251,7 +251,7 @@ int seg6_input(struct sk_buff *skb)
 	return dst_input(skb);
 }
 
-int seg6_output(struct net *net, struct sock *sk, struct sk_buff *skb)
+static int seg6_output(struct net *net, struct sock *sk, struct sk_buff *skb)
 {
 	struct dst_entry *orig_dst = skb_dst(skb);
 	struct dst_entry *dst = NULL;