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bareudp: Fix device stats updates.

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[ Upstream commit 4963d2343af81f493519f9c3ea9f2169eaa7353a ]

Bareudp devices update their stats concurrently.
Therefore they need proper atomic increments.

Fixes: 571912c69f0e ("net: UDP tunnel encapsulation module for tunnelling different protocols like MPLS, IP, NSH etc.")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://patch.msgid.link/04b7b9d0b480158eb3ab4366ec80aa2ab7e41fcb.1725031794.git.gnault@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Guillaume Nault 2024-08-30 17:31:07 +02:00 • committed by Ksawlii
parent dd010dbcce
commit 831b755d5b
1 changed files with 11 additions and 11 deletions
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22
drivers/net/bareudp.c
View file

@ -75,7 +75,7 @@ static int bareudp_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
if (skb_copy_bits(skb, BAREUDP_BASE_HLEN, &ipversion,
sizeof(ipversion))) {
bareudp->dev->stats.rx_dropped++;
DEV_STATS_INC(bareudp->dev, rx_dropped);
goto drop;
}
ipversion >>= 4;
@ -85,7 +85,7 @@ static int bareudp_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
} else if (ipversion == 6 && bareudp->multi_proto_mode) {
proto = htons(ETH_P_IPV6);
} else {
bareudp->dev->stats.rx_dropped++;
DEV_STATS_INC(bareudp->dev, rx_dropped);
goto drop;
}
} else if (bareudp->ethertype == htons(ETH_P_MPLS_UC)) {
@ -99,7 +99,7 @@ static int bareudp_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
ipv4_is_multicast(tunnel_hdr->daddr)) {
proto = htons(ETH_P_MPLS_MC);
} else {
bareudp->dev->stats.rx_dropped++;
DEV_STATS_INC(bareudp->dev, rx_dropped);
goto drop;
}
} else {
@ -115,7 +115,7 @@ static int bareudp_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
(addr_type & IPV6_ADDR_MULTICAST)) {
proto = htons(ETH_P_MPLS_MC);
} else {
bareudp->dev->stats.rx_dropped++;
DEV_STATS_INC(bareudp->dev, rx_dropped);
goto drop;
}
}
@ -127,12 +127,12 @@ static int bareudp_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
proto,
!net_eq(bareudp->net,
dev_net(bareudp->dev)))) {
bareudp->dev->stats.rx_dropped++;
DEV_STATS_INC(bareudp->dev, rx_dropped);
goto drop;
}
tun_dst = udp_tun_rx_dst(skb, family, TUNNEL_KEY, 0, 0);
if (!tun_dst) {
bareudp->dev->stats.rx_dropped++;
DEV_STATS_INC(bareudp->dev, rx_dropped);
goto drop;
}
skb_dst_set(skb, &tun_dst->dst);
@ -157,8 +157,8 @@ static int bareudp_udp_encap_recv(struct sock *sk, struct sk_buff *skb)
&((struct ipv6hdr *)oiph)->saddr);
}
if (err > 1) {
++bareudp->dev->stats.rx_frame_errors;
++bareudp->dev->stats.rx_errors;
DEV_STATS_INC(bareudp->dev, rx_frame_errors);
DEV_STATS_INC(bareudp->dev, rx_errors);
goto drop;
}
}
@ -453,11 +453,11 @@ tx_error:
dev_kfree_skb(skb);
if (err == -ELOOP)
dev->stats.collisions++;
DEV_STATS_INC(dev, collisions);
else if (err == -ENETUNREACH)
dev->stats.tx_carrier_errors++;
DEV_STATS_INC(dev, tx_carrier_errors);
dev->stats.tx_errors++;
DEV_STATS_INC(dev, tx_errors);
return NETDEV_TX_OK;
}