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path: root/net/ipv4/tcp_minisocks.c
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Diffstat (limited to 'net/ipv4/tcp_minisocks.c')
-rw-r--r--net/ipv4/tcp_minisocks.c17
1 files changed, 10 insertions, 7 deletions
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 0ce3d06dce6..550e755747e 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -141,7 +141,7 @@ tcp_timewait_state_process(struct inet_timewait_sock *tw, struct sk_buff *skb,
const struct tcphdr *th)
{
struct tcp_options_received tmp_opt;
- u8 *hash_location;
+ const u8 *hash_location;
struct tcp_timewait_sock *tcptw = tcp_twsk((struct sock *)tw);
int paws_reject = 0;
@@ -336,15 +336,16 @@ void tcp_time_wait(struct sock *sk, int state, int timeo)
tcptw->tw_ts_recent = tp->rx_opt.ts_recent;
tcptw->tw_ts_recent_stamp = tp->rx_opt.ts_recent_stamp;
-#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
+#if IS_ENABLED(CONFIG_IPV6)
if (tw->tw_family == PF_INET6) {
struct ipv6_pinfo *np = inet6_sk(sk);
struct inet6_timewait_sock *tw6;
tw->tw_ipv6_offset = inet6_tw_offset(sk->sk_prot);
tw6 = inet6_twsk((struct sock *)tw);
- ipv6_addr_copy(&tw6->tw_v6_daddr, &np->daddr);
- ipv6_addr_copy(&tw6->tw_v6_rcv_saddr, &np->rcv_saddr);
+ tw6->tw_v6_daddr = np->daddr;
+ tw6->tw_v6_rcv_saddr = np->rcv_saddr;
+ tw->tw_tclass = np->tclass;
tw->tw_ipv6only = np->ipv6only;
}
#endif
@@ -424,7 +425,7 @@ static inline void TCP_ECN_openreq_child(struct tcp_sock *tp,
*/
struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req, struct sk_buff *skb)
{
- struct sock *newsk = inet_csk_clone(sk, req, GFP_ATOMIC);
+ struct sock *newsk = inet_csk_clone_lock(sk, req, GFP_ATOMIC);
if (newsk != NULL) {
const struct inet_request_sock *ireq = inet_rsk(req);
@@ -494,7 +495,9 @@ struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req,
newtp->frto_counter = 0;
newtp->frto_highmark = 0;
- newicsk->icsk_ca_ops = &tcp_init_congestion_ops;
+ if (newicsk->icsk_ca_ops != &tcp_init_congestion_ops &&
+ !try_module_get(newicsk->icsk_ca_ops->owner))
+ newicsk->icsk_ca_ops = &tcp_init_congestion_ops;
tcp_set_ca_state(newsk, TCP_CA_Open);
tcp_init_xmit_timers(newsk);
@@ -567,7 +570,7 @@ struct sock *tcp_check_req(struct sock *sk, struct sk_buff *skb,
struct request_sock **prev)
{
struct tcp_options_received tmp_opt;
- u8 *hash_location;
+ const u8 *hash_location;
struct sock *child;
const struct tcphdr *th = tcp_hdr(skb);
__be32 flg = tcp_flag_word(th) & (TCP_FLAG_RST|TCP_FLAG_SYN|TCP_FLAG_ACK);