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authorJakub Kicinski <kuba@kernel.org>2022-04-28 23:01:50 +0300
committerJakub Kicinski <kuba@kernel.org>2022-04-28 23:02:01 +0300
commit0e55546b189fc5f1ce5149445d7df083f26d4f25 (patch)
tree0ed58feac725c81dd27a4533bea24c328898e877 /net/ipv6/ip6_gre.c
parentf3412b3879b4f7c4313b186b03940d4791345534 (diff)
parent249aca0d3d631660aa3583c6a3559b75b6e971b4 (diff)
downloadlinux-0e55546b189fc5f1ce5149445d7df083f26d4f25.tar.xz
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
include/linux/netdevice.h net/core/dev.c 6510ea973d8d ("net: Use this_cpu_inc() to increment net->core_stats") 794c24e9921f ("net-core: rx_otherhost_dropped to core_stats") https://lore.kernel.org/all/20220428111903.5f4304e0@canb.auug.org.au/ drivers/net/wan/cosa.c d48fea8401cf ("net: cosa: fix error check return value of register_chrdev()") 89fbca3307d4 ("net: wan: remove support for COSA and SRP synchronous serial boards") https://lore.kernel.org/all/20220428112130.1f689e5e@canb.auug.org.au/ Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv6/ip6_gre.c')
-rw-r--r--net/ipv6/ip6_gre.c16
1 files changed, 8 insertions, 8 deletions
diff --git a/net/ipv6/ip6_gre.c b/net/ipv6/ip6_gre.c
index 976236736146..5136959b3dc5 100644
--- a/net/ipv6/ip6_gre.c
+++ b/net/ipv6/ip6_gre.c
@@ -724,6 +724,7 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb,
{
struct ip6_tnl *tunnel = netdev_priv(dev);
__be16 protocol;
+ __be16 flags;
if (dev->type == ARPHRD_ETHER)
IPCB(skb)->flags = 0;
@@ -739,7 +740,6 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb,
if (tunnel->parms.collect_md) {
struct ip_tunnel_info *tun_info;
const struct ip_tunnel_key *key;
- __be16 flags;
int tun_hlen;
tun_info = skb_tunnel_info_txcheck(skb);
@@ -766,19 +766,19 @@ static netdev_tx_t __gre6_xmit(struct sk_buff *skb,
gre_build_header(skb, tun_hlen,
flags, protocol,
tunnel_id_to_key32(tun_info->key.tun_id),
- (flags & TUNNEL_SEQ) ? htonl(tunnel->o_seqno++)
+ (flags & TUNNEL_SEQ) ? htonl(atomic_fetch_inc(&tunnel->o_seqno))
: 0);
} else {
- if (tunnel->parms.o_flags & TUNNEL_SEQ)
- tunnel->o_seqno++;
-
if (skb_cow_head(skb, dev->needed_headroom ?: tunnel->hlen))
return -ENOMEM;
- gre_build_header(skb, tunnel->tun_hlen, tunnel->parms.o_flags,
+ flags = tunnel->parms.o_flags;
+
+ gre_build_header(skb, tunnel->tun_hlen, flags,
protocol, tunnel->parms.o_key,
- htonl(tunnel->o_seqno));
+ (flags & TUNNEL_SEQ) ? htonl(atomic_fetch_inc(&tunnel->o_seqno))
+ : 0);
}
return ip6_tnl_xmit(skb, dev, dsfield, fl6, encap_limit, pmtu,
@@ -1056,7 +1056,7 @@ static netdev_tx_t ip6erspan_tunnel_xmit(struct sk_buff *skb,
/* Push GRE header. */
proto = (t->parms.erspan_ver == 1) ? htons(ETH_P_ERSPAN)
: htons(ETH_P_ERSPAN2);
- gre_build_header(skb, 8, TUNNEL_SEQ, proto, 0, htonl(t->o_seqno++));
+ gre_build_header(skb, 8, TUNNEL_SEQ, proto, 0, htonl(atomic_fetch_inc(&t->o_seqno)));
/* TooBig packet may have updated dst->dev's mtu */
if (!t->parms.collect_md && dst && dst_mtu(dst) > dst->dev->mtu)