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fou: make local function static 

The build header functions are not used by any other code.

net/ipv6/fou6.c:36:5: warning: no previous prototype for ‘fou6_build_header’ [-Wmissing-prototypes]
net/ipv6/fou6.c:54:5: warning: no previous prototype for ‘gue6_build_header’ [-Wmissing-prototypes]

Need to do some code rearranging to satisfy different Kconfig possiblities.

Signed-off-by: Stephen Hemminger <sthemmin@microsoft.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
stephen hemminger 2017-05-19 09:55:54 -07:00 committed by David S. Miller
parent c718c6d66b
commit 9dc621afa8
2 changed files with 47 additions and 49 deletions
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82
net/ipv4/fou.c
View File

@ -8,6 +8,7 @@
#include <linux/kernel.h>
#include <net/genetlink.h>
#include <net/gue.h>
#include <net/fou.h>
#include <net/ip.h>
#include <net/protocol.h>
#include <net/udp.h>
@ -859,25 +860,6 @@ size_t gue_encap_hlen(struct ip_tunnel_encap *e)
}
EXPORT_SYMBOL(gue_encap_hlen);
static void fou_build_udp(struct sk_buff *skb, struct ip_tunnel_encap *e,
struct flowi4 *fl4, u8 *protocol, __be16 sport)
{
struct udphdr *uh;
skb_push(skb, sizeof(struct udphdr));
skb_reset_transport_header(skb);
uh = udp_hdr(skb);
uh->dest = e->dport;
uh->source = sport;
uh->len = htons(skb->len);
udp_set_csum(!(e->flags & TUNNEL_ENCAP_FLAG_CSUM), skb,
fl4->saddr, fl4->daddr, skb->len);
*protocol = IPPROTO_UDP;
}
int __fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
u8 *protocol, __be16 *sport, int type)
{
@ -894,24 +876,6 @@ int __fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
}
EXPORT_SYMBOL(__fou_build_header);
int fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
u8 *protocol, struct flowi4 *fl4)
{
int type = e->flags & TUNNEL_ENCAP_FLAG_CSUM ? SKB_GSO_UDP_TUNNEL_CSUM :
SKB_GSO_UDP_TUNNEL;
__be16 sport;
int err;
err = __fou_build_header(skb, e, protocol, &sport, type);
if (err)
return err;
fou_build_udp(skb, e, fl4, protocol, sport);
return 0;
}
EXPORT_SYMBOL(fou_build_header);
int __gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
u8 *protocol, __be16 *sport, int type)
{
@ -985,8 +949,46 @@ int __gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
}
EXPORT_SYMBOL(__gue_build_header);
int gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
u8 *protocol, struct flowi4 *fl4)
#ifdef CONFIG_NET_FOU_IP_TUNNELS
static void fou_build_udp(struct sk_buff *skb, struct ip_tunnel_encap *e,
struct flowi4 *fl4, u8 *protocol, __be16 sport)
{
struct udphdr *uh;
skb_push(skb, sizeof(struct udphdr));
skb_reset_transport_header(skb);
uh = udp_hdr(skb);
uh->dest = e->dport;
uh->source = sport;
uh->len = htons(skb->len);
udp_set_csum(!(e->flags & TUNNEL_ENCAP_FLAG_CSUM), skb,
fl4->saddr, fl4->daddr, skb->len);
*protocol = IPPROTO_UDP;
}
static int fou_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
u8 *protocol, struct flowi4 *fl4)
{
int type = e->flags & TUNNEL_ENCAP_FLAG_CSUM ? SKB_GSO_UDP_TUNNEL_CSUM :
SKB_GSO_UDP_TUNNEL;
__be16 sport;
int err;
err = __fou_build_header(skb, e, protocol, &sport, type);
if (err)
return err;
fou_build_udp(skb, e, fl4, protocol, sport);
return 0;
}
static int gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
u8 *protocol, struct flowi4 *fl4)
{
int type = e->flags & TUNNEL_ENCAP_FLAG_CSUM ? SKB_GSO_UDP_TUNNEL_CSUM :
SKB_GSO_UDP_TUNNEL;
@ -1001,9 +1003,7 @@ int gue_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
return 0;
}
EXPORT_SYMBOL(gue_build_header);
#ifdef CONFIG_NET_FOU_IP_TUNNELS
static const struct ip_tunnel_encap_ops fou_iptun_ops = {
.encap_hlen = fou_encap_hlen,

14
net/ipv6/fou6.c
View File

@ -14,6 +14,8 @@
#include <net/udp.h>
#include <net/udp_tunnel.h>
#if IS_ENABLED(CONFIG_IPV6_FOU_TUNNEL)
static void fou6_build_udp(struct sk_buff *skb, struct ip_tunnel_encap *e,
struct flowi6 *fl6, u8 *protocol, __be16 sport)
{
@ -33,8 +35,8 @@ static void fou6_build_udp(struct sk_buff *skb, struct ip_tunnel_encap *e,
*protocol = IPPROTO_UDP;
}
int fou6_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
u8 *protocol, struct flowi6 *fl6)
static int fou6_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
u8 *protocol, struct flowi6 *fl6)
{
__be16 sport;
int err;
@ -49,10 +51,9 @@ int fou6_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
return 0;
}
EXPORT_SYMBOL(fou6_build_header);
int gue6_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
u8 *protocol, struct flowi6 *fl6)
static int gue6_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
u8 *protocol, struct flowi6 *fl6)
{
__be16 sport;
int err;
@ -67,9 +68,6 @@ int gue6_build_header(struct sk_buff *skb, struct ip_tunnel_encap *e,
return 0;
}
EXPORT_SYMBOL(gue6_build_header);
#if IS_ENABLED(CONFIG_IPV6_FOU_TUNNEL)
static const struct ip6_tnl_encap_ops fou_ip6tun_ops = {
.encap_hlen = fou_encap_hlen,