diff options
| author | Eric Dumazet <edumazet@google.com> | 2025-03-01 20:14:21 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-03-03 15:44:19 -0800 |
| commit | e7b9ecce562ca6a1de32c56c597fa45e08c44ec0 (patch) | |
| tree | 9c86e6e3ecaf4a66a7aedb409204a99aed158167 /net/ipv4/tcp_ipv4.c | |
| parent | a11a791ca81e5cd9bf2d48e1368d836bc53f00ca (diff) | |
tcp: convert to dev_net_rcu()
TCP uses of dev_net() are under RCU protection, change them
to dev_net_rcu() to get LOCKDEP support.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Link: https://patch.msgid.link/20250301201424.2046477-4-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 218f01a8cc5f..ae07613e4f33 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -494,14 +494,14 @@ int tcp_v4_err(struct sk_buff *skb, u32 info) { const struct iphdr *iph = (const struct iphdr *)skb->data; struct tcphdr *th = (struct tcphdr *)(skb->data + (iph->ihl << 2)); - struct tcp_sock *tp; + struct net *net = dev_net_rcu(skb->dev); const int type = icmp_hdr(skb)->type; const int code = icmp_hdr(skb)->code; - struct sock *sk; struct request_sock *fastopen; + struct tcp_sock *tp; u32 seq, snd_una; + struct sock *sk; int err; - struct net *net = dev_net(skb->dev); sk = __inet_lookup_established(net, net->ipv4.tcp_death_row.hashinfo, iph->daddr, th->dest, iph->saddr, @@ -786,7 +786,7 @@ static void tcp_v4_send_reset(const struct sock *sk, struct sk_buff *skb, arg.iov[0].iov_base = (unsigned char *)&rep; arg.iov[0].iov_len = sizeof(rep.th); - net = sk ? sock_net(sk) : dev_net(skb_dst(skb)->dev); + net = sk ? sock_net(sk) : dev_net_rcu(skb_dst(skb)->dev); /* Invalid TCP option size or twice included auth */ if (tcp_parse_auth_options(tcp_hdr(skb), &md5_hash_location, &aoh)) @@ -1961,7 +1961,7 @@ EXPORT_SYMBOL(tcp_v4_do_rcv); int tcp_v4_early_demux(struct sk_buff *skb) { - struct net *net = dev_net(skb->dev); + struct net *net = dev_net_rcu(skb->dev); const struct iphdr *iph; const struct tcphdr *th; struct sock *sk; @@ -2172,7 +2172,7 @@ static void tcp_v4_fill_cb(struct sk_buff *skb, const struct iphdr *iph, int tcp_v4_rcv(struct sk_buff *skb) { - struct net *net = dev_net(skb->dev); + struct net *net = dev_net_rcu(skb->dev); enum skb_drop_reason drop_reason; int sdif = inet_sdif(skb); int dif = inet_iif(skb); |