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ip_tunnels: convert the mode field of ip_tunnel_info to flags

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The mode field holds a single bit of information only (whether the
ip_tunnel_info struct is for rx or tx). Change the mode field to bit flags.
This allows more mode flags to be added.

Signed-off-by: Jiri Benc <jbenc@redhat.com>
Acked-by: Alexei Starovoitov <ast@plumgrid.com>
Acked-by: Thomas Graf <tgraf@suug.ch>
Acked-by: Pravin B Shelar <pshelar@nicira.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Benc 2015-08-28 20:48:19 +02:00 committed by David S. Miller
parent f6d3c19274
commit 46fa062ad6
7 changed files with 7 additions and 13 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/geneve.c
View File

@ -623,7 +623,7 @@ static netdev_tx_t geneve_xmit(struct sk_buff *skb, struct net_device *dev)
if (geneve->collect_md) {
info = skb_tunnel_info(skb);
if (unlikely(info && info->mode != IP_TUNNEL_INFO_TX)) {
if (unlikely(info && !(info->mode & IP_TUNNEL_INFO_TX))) {
netdev_dbg(dev, "no tunnel metadata\n");
goto tx_error;
}

2
drivers/net/vxlan.c
View File

@ -2113,7 +2113,7 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
}
if (vxlan->flags & VXLAN_F_COLLECT_METADATA &&
info && info->mode == IP_TUNNEL_INFO_TX) {
info && info->mode & IP_TUNNEL_INFO_TX) {
vxlan_xmit_one(skb, dev, NULL, false);
return NETDEV_TX_OK;
}

1
include/net/dst_metadata.h
View File

@ -59,7 +59,6 @@ static inline struct metadata_dst *tun_rx_dst(__be16 flags,
return NULL;
info = &tun_dst->u.tun_info;
info->mode = IP_TUNNEL_INFO_RX;
info->key.tun_flags = flags;
info->key.tun_id = tunnel_id;
info->key.tp_src = 0;

9
include/net/ip_tunnels.h
View File

@ -50,13 +50,8 @@ struct ip_tunnel_key {
__be16 tp_dst;
};
/* Indicates whether the tunnel info structure represents receive
* or transmit tunnel parameters.
*/
enum {
IP_TUNNEL_INFO_RX,
IP_TUNNEL_INFO_TX,
};
/* Flags for ip_tunnel_info mode. */
#define IP_TUNNEL_INFO_TX 0x01 /* represents tx tunnel parameters */
struct ip_tunnel_info {
struct ip_tunnel_key key;

2
net/ipv4/ip_gre.c
View File

@ -511,7 +511,7 @@ static void gre_fb_xmit(struct sk_buff *skb, struct net_device *dev)
int err;
tun_info = skb_tunnel_info(skb);
if (unlikely(!tun_info || tun_info->mode != IP_TUNNEL_INFO_TX))
if (unlikely(!tun_info || !(tun_info->mode & IP_TUNNEL_INFO_TX)))
goto err_free_skb;
key = &tun_info->key;

2
net/ipv4/route.c
View File

@ -1696,7 +1696,7 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr,
*/
tun_info = skb_tunnel_info(skb);
if (tun_info && tun_info->mode == IP_TUNNEL_INFO_RX)
if (tun_info && !(tun_info->mode & IP_TUNNEL_INFO_TX))
fl4.flowi4_tun_key.tun_id = tun_info->key.tun_id;
else
fl4.flowi4_tun_key.tun_id = 0;

2
net/ipv6/route.c
View File

@ -1174,7 +1174,7 @@ void ip6_route_input(struct sk_buff *skb)
};
tun_info = skb_tunnel_info(skb);
if (tun_info && tun_info->mode == IP_TUNNEL_INFO_RX)
if (tun_info && !(tun_info->mode & IP_TUNNEL_INFO_TX))
fl6.flowi6_tun_key.tun_id = tun_info->key.tun_id;
skb_dst_drop(skb);
skb_dst_set(skb, ip6_route_input_lookup(net, skb->dev, &fl6, flags));