Usage of the skb deferral API is straight-forward; with multiple
subflows actives this allow moving part of the received application
load into multiple CPUs.

Also fix a typo in the related comment.

Reviewed-by: Geliang Tang <geliang@kernel.org>
Tested-by: Geliang Tang <geliang@kernel.org>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
---
 net/mptcp/protocol.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
index 7933291e991ce..9d95d24781509 100644
--- a/net/mptcp/protocol.c
+++ b/net/mptcp/protocol.c
@@ -1943,12 +1943,13 @@ static int __mptcp_recvmsg_mskq(struct sock *sk,
 		}
 
 		if (!(flags & MSG_PEEK)) {
-			/* avoid the indirect call, we know the destructor is sock_wfree */
+			/* avoid the indirect call, we know the destructor is sock_rfree */
 			skb->destructor = NULL;
+			skb->sk = NULL;
 			atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
 			sk_mem_uncharge(sk, skb->truesize);
 			__skb_unlink(skb, &sk->sk_receive_queue);
-			__kfree_skb(skb);
+			skb_attempt_defer_free(skb);
 			msk->bytes_consumed += count;
 		}
 
-- 
2.51.0