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authorJakub Kicinski <kuba@kernel.org>2023-08-24 10:46:29 -0700
committerJakub Kicinski <kuba@kernel.org>2023-08-24 10:51:39 -0700
commit57ce6427e00a6a72f74b29630b39548b36980b09 (patch)
tree4f09d27db19c7c6688764dee7fd1955a37ed4774 /net/dccp
parent9f6708a668186dc5b38532fc1d1ff2f5311722d6 (diff)
parentb5cc3833f13ace75e26e3f7b51cd7b6da5e9cf17 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR. Conflicts: include/net/inet_sock.h f866fbc842de ("ipv4: fix data-races around inet->inet_id") c274af224269 ("inet: introduce inet->inet_flags") https://lore.kernel.org/all/679ddff6-db6e-4ff6-b177-574e90d0103d@tessares.net/ Adjacent changes: drivers/net/bonding/bond_alb.c e74216b8def3 ("bonding: fix macvlan over alb bond support") f11e5bd159b0 ("bonding: support balance-alb with openvswitch") drivers/net/ethernet/broadcom/bgmac.c d6499f0b7c7c ("net: bgmac: Return PTR_ERR() for fixed_phy_register()") 23a14488ea58 ("net: bgmac: Fix return value check for fixed_phy_register()") drivers/net/ethernet/broadcom/genet/bcmmii.c 32bbe64a1386 ("net: bcmgenet: Fix return value check for fixed_phy_register()") acf50d1adbf4 ("net: bcmgenet: Return PTR_ERR() for fixed_phy_register()") net/sctp/socket.c f866fbc842de ("ipv4: fix data-races around inet->inet_id") b09bde5c3554 ("inet: move inet->mc_loop to inet->inet_frags") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/dccp')
-rw-r--r--net/dccp/ipv4.c4
-rw-r--r--net/dccp/proto.c20
2 files changed, 14 insertions, 10 deletions
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 8dd6837c476a..1591b061105a 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -130,7 +130,7 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
inet->inet_daddr,
inet->inet_sport,
inet->inet_dport);
- inet->inet_id = get_random_u16();
+ atomic_set(&inet->inet_id, get_random_u16());
err = dccp_connect(sk);
rt = NULL;
@@ -430,7 +430,7 @@ struct sock *dccp_v4_request_recv_sock(const struct sock *sk,
RCU_INIT_POINTER(newinet->inet_opt, rcu_dereference(ireq->ireq_opt));
newinet->mc_index = inet_iif(skb);
newinet->mc_ttl = ip_hdr(skb)->ttl;
- newinet->inet_id = get_random_u16();
+ atomic_set(&newinet->inet_id, get_random_u16());
if (dst == NULL && (dst = inet_csk_route_child_sock(sk, newsk, req)) == NULL)
goto put_and_exit;
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index 4e3266e4d7c3..fcc5c9d64f46 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -315,11 +315,15 @@ EXPORT_SYMBOL_GPL(dccp_disconnect);
__poll_t dccp_poll(struct file *file, struct socket *sock,
poll_table *wait)
{
- __poll_t mask;
struct sock *sk = sock->sk;
+ __poll_t mask;
+ u8 shutdown;
+ int state;
sock_poll_wait(file, sock, wait);
- if (sk->sk_state == DCCP_LISTEN)
+
+ state = inet_sk_state_load(sk);
+ if (state == DCCP_LISTEN)
return inet_csk_listen_poll(sk);
/* Socket is not locked. We are protected from async events
@@ -328,20 +332,21 @@ __poll_t dccp_poll(struct file *file, struct socket *sock,
*/
mask = 0;
- if (sk->sk_err)
+ if (READ_ONCE(sk->sk_err))
mask = EPOLLERR;
+ shutdown = READ_ONCE(sk->sk_shutdown);
- if (sk->sk_shutdown == SHUTDOWN_MASK || sk->sk_state == DCCP_CLOSED)
+ if (shutdown == SHUTDOWN_MASK || state == DCCP_CLOSED)
mask |= EPOLLHUP;
- if (sk->sk_shutdown & RCV_SHUTDOWN)
+ if (shutdown & RCV_SHUTDOWN)
mask |= EPOLLIN | EPOLLRDNORM | EPOLLRDHUP;
/* Connected? */
- if ((1 << sk->sk_state) & ~(DCCPF_REQUESTING | DCCPF_RESPOND)) {
+ if ((1 << state) & ~(DCCPF_REQUESTING | DCCPF_RESPOND)) {
if (atomic_read(&sk->sk_rmem_alloc) > 0)
mask |= EPOLLIN | EPOLLRDNORM;
- if (!(sk->sk_shutdown & SEND_SHUTDOWN)) {
+ if (!(shutdown & SEND_SHUTDOWN)) {
if (sk_stream_is_writeable(sk)) {
mask |= EPOLLOUT | EPOLLWRNORM;
} else { /* send SIGIO later */
@@ -359,7 +364,6 @@ __poll_t dccp_poll(struct file *file, struct socket *sock,
}
return mask;
}
-
EXPORT_SYMBOL_GPL(dccp_poll);
int dccp_ioctl(struct sock *sk, int cmd, int *karg)