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Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

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Minor overlapping changes, nothing serious.

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller
2020-03-12 21:29:30 -07:00
parent a8eceea84a 0d81a3f29c
commit 1d34357931
582 changed files with 5361 additions and 2774 deletions
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19
net/mptcp/options.c
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@@ -335,6 +335,8 @@ static bool mptcp_established_options_dss(struct sock *sk, struct sk_buff *skb,
struct mptcp_sock *msk;
unsigned int ack_size;
bool ret = false;
bool can_ack;
u64 ack_seq;
u8 tcp_fin;
if (skb) {
@@ -360,9 +362,22 @@ static bool mptcp_established_options_dss(struct sock *sk, struct sk_buff *skb,
ret = true;
}
/* passive sockets msk will set the 'can_ack' after accept(), even
* if the first subflow may have the already the remote key handy
*/
can_ack = true;
opts->ext_copy.use_ack = 0;
msk = mptcp_sk(subflow->conn);
if (!msk || !READ_ONCE(msk->can_ack)) {
if (likely(msk && READ_ONCE(msk->can_ack))) {
ack_seq = msk->ack_seq;
} else if (subflow->can_ack) {
mptcp_crypto_key_sha(subflow->remote_key, NULL, &ack_seq);
ack_seq++;
} else {
can_ack = false;
}
if (unlikely(!can_ack)) {
*size = ALIGN(dss_size, 4);
return ret;
}
@@ -375,7 +390,7 @@ static bool mptcp_established_options_dss(struct sock *sk, struct sk_buff *skb,
dss_size += ack_size;
opts->ext_copy.data_ack = msk->ack_seq;
opts->ext_copy.data_ack = ack_seq;
opts->ext_copy.ack64 = 1;
opts->ext_copy.use_ack = 1;