summaryrefslogtreecommitdiffstats
path: root/net/ipv4/ip_gre.c
diff options
context:
space:
mode:
authorGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-05-02 13:49:24 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-05-02 13:49:24 +0200
commit35a7609639c49f76f13f206402cbf692c4ae3e4e (patch)
tree55c8cf59f8bac0754eff06a3f102d2d819dc39ed /net/ipv4/ip_gre.c
parente918c10265ef2bc82ce8a6fed6d8123d09ec1db3 (diff)
parent672c0c5173427e6b3e2a9bbb7be51ceeec78093a (diff)
downloadlinux-stable-35a7609639c49f76f13f206402cbf692c4ae3e4e.tar.gz
linux-stable-35a7609639c49f76f13f206402cbf692c4ae3e4e.tar.bz2
linux-stable-35a7609639c49f76f13f206402cbf692c4ae3e4e.zip
Merge 5.18-rc5 into char-misc-next
We need the char-misc fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'net/ipv4/ip_gre.c')
-rw-r--r--net/ipv4/ip_gre.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 99db2e41ed10..aacee9dd771b 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -459,14 +459,12 @@ static void __gre_xmit(struct sk_buff *skb, struct net_device *dev,
__be16 proto)
{
struct ip_tunnel *tunnel = netdev_priv(dev);
-
- if (tunnel->parms.o_flags & TUNNEL_SEQ)
- tunnel->o_seqno++;
+ __be16 flags = tunnel->parms.o_flags;
/* Push GRE header. */
gre_build_header(skb, tunnel->tun_hlen,
- tunnel->parms.o_flags, proto, tunnel->parms.o_key,
- htonl(tunnel->o_seqno));
+ flags, proto, tunnel->parms.o_key,
+ (flags & TUNNEL_SEQ) ? htonl(atomic_fetch_inc(&tunnel->o_seqno)) : 0);
ip_tunnel_xmit(skb, dev, tnl_params, tnl_params->protocol);
}
@@ -504,7 +502,7 @@ static void gre_fb_xmit(struct sk_buff *skb, struct net_device *dev,
(TUNNEL_CSUM | TUNNEL_KEY | TUNNEL_SEQ);
gre_build_header(skb, tunnel_hlen, flags, proto,
tunnel_id_to_key32(tun_info->key.tun_id),
- (flags & TUNNEL_SEQ) ? htonl(tunnel->o_seqno++) : 0);
+ (flags & TUNNEL_SEQ) ? htonl(atomic_fetch_inc(&tunnel->o_seqno)) : 0);
ip_md_tunnel_xmit(skb, dev, IPPROTO_GRE, tunnel_hlen);
@@ -581,7 +579,7 @@ static void erspan_fb_xmit(struct sk_buff *skb, struct net_device *dev)
}
gre_build_header(skb, 8, TUNNEL_SEQ,
- proto, 0, htonl(tunnel->o_seqno++));
+ proto, 0, htonl(atomic_fetch_inc(&tunnel->o_seqno)));
ip_md_tunnel_xmit(skb, dev, IPPROTO_GRE, tunnel_hlen);
@@ -605,8 +603,8 @@ static int gre_fill_metadata_dst(struct net_device *dev, struct sk_buff *skb)
key = &info->key;
ip_tunnel_init_flow(&fl4, IPPROTO_GRE, key->u.ipv4.dst, key->u.ipv4.src,
tunnel_id_to_key32(key->tun_id),
- key->tos & ~INET_ECN_MASK, 0, skb->mark,
- skb_get_hash(skb));
+ key->tos & ~INET_ECN_MASK, dev_net(dev), 0,
+ skb->mark, skb_get_hash(skb));
rt = ip_route_output_key(dev_net(dev), &fl4);
if (IS_ERR(rt))
return PTR_ERR(rt);