From 46fa062ad63146dd138ec0f017e71224471e8ea5 Mon Sep 17 00:00:00 2001 From: Jiri Benc Date: Fri, 28 Aug 2015 20:48:19 +0200 Subject: ip_tunnels: convert the mode field of ip_tunnel_info to flags 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 Acked-by: Alexei Starovoitov Acked-by: Thomas Graf Acked-by: Pravin B Shelar Signed-off-by: David S. Miller --- drivers/net/geneve.c | 2 +- drivers/net/vxlan.c | 2 +- include/net/dst_metadata.h | 1 - include/net/ip_tunnels.h | 9 ++------- net/ipv4/ip_gre.c | 2 +- net/ipv4/route.c | 2 +- net/ipv6/route.c | 2 +- 7 files changed, 7 insertions(+), 13 deletions(-) diff --git a/drivers/net/geneve.c b/drivers/net/geneve.c index 4357bae732d7..4a39c09f144c 100644 --- a/drivers/net/geneve.c +++ b/drivers/net/geneve.c @@ -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; } diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c index 30e56cb58884..bd1b8cdf2bf6 100644 --- a/drivers/net/vxlan.c +++ b/drivers/net/vxlan.c @@ -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; } diff --git a/include/net/dst_metadata.h b/include/net/dst_metadata.h index 60c03326c087..2b83f0d232e0 100644 --- a/include/net/dst_metadata.h +++ b/include/net/dst_metadata.h @@ -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; diff --git a/include/net/ip_tunnels.h b/include/net/ip_tunnels.h index 224e4ecec91b..9bdb3948798f 100644 --- a/include/net/ip_tunnels.h +++ b/include/net/ip_tunnels.h @@ -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; diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c index faf1cde6f8da..1e813a9f9378 100644 --- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -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; diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 6b91879e9cbe..5f4a5565ad8b 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -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; diff --git a/net/ipv6/route.c b/net/ipv6/route.c index df3e353a012d..308dd5f9158f 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -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)); -- cgit v1.2.3-59-g8ed1b