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Date: Sun, 10 Apr 2022 22:34:35 +0200
From: Oliver Hartkopp <socketcan@...tkopp.net>
To: netdev@...r.kernel.org, kuba@...nel.org, davem@...emloft.net
Subject: Re: [PATCH net-next v2] net: remove noblock parameter from recvmsg()
entities
Ah, there are still some missing bits as I tried to omit using
allmodconfig due to my relatively slow machine.
Will send a v3 then. Sorry for the noise :-/
BR
Oliver
On 10.04.22 22:06, Oliver Hartkopp wrote:
> The internal recvmsg() functions have two parameters 'flags' and 'noblock'
> that were merged inside skb_recv_datagram(). As a follow up patch to commit
> f4b41f062c42 ("net: remove noblock parameter from skb_recv_datagram()")
> this patch removes the separate 'noblock' parameter for recvmsg().
>
> Analogue to the referenced patch for skb_recv_datagram() the 'flags' and
> 'noblock' parameters are unnecessarily split up with e.g.
>
> err = sk->sk_prot->recvmsg(sk, msg, size, flags & MSG_DONTWAIT,
> flags & ~MSG_DONTWAIT, &addr_len);
>
> or in
>
> err = INDIRECT_CALL_2(sk->sk_prot->recvmsg, tcp_recvmsg, udp_recvmsg,
> sk, msg, size, flags & MSG_DONTWAIT,
> flags & ~MSG_DONTWAIT, &addr_len);
>
> instead of simply using only 'flags' all the time and check for MSG_DONTWAIT
> flags where needed to check for the former separated no(n)block condition.
>
> Signed-off-by: Oliver Hartkopp <socketcan@...tkopp.net>
> ---
> .../chelsio/inline_crypto/chtls/chtls.h | 2 +-
> .../chelsio/inline_crypto/chtls/chtls_io.c | 20 +++++++++----------
> include/net/ping.h | 2 +-
> include/net/sock.h | 3 +--
> include/net/tcp.h | 2 +-
> include/net/tls.h | 2 +-
> include/net/udp.h | 6 +++---
> net/core/sock.c | 3 +--
> net/ieee802154/socket.c | 6 ++----
> net/ipv4/af_inet.c | 5 ++---
> net/ipv4/ping.c | 3 +--
> net/ipv4/raw.c | 3 +--
> net/ipv4/tcp.c | 14 ++++++-------
> net/ipv4/tcp_bpf.c | 15 +++++++-------
> net/ipv4/udp.c | 9 ++++-----
> net/ipv4/udp_bpf.c | 16 +++++++--------
> net/ipv4/udp_impl.h | 2 +-
> net/ipv6/af_inet6.c | 5 ++---
> net/ipv6/raw.c | 3 +--
> net/ipv6/udp.c | 4 ++--
> net/ipv6/udp_impl.h | 2 +-
> net/l2tp/l2tp_ip.c | 3 +--
> net/l2tp/l2tp_ip6.c | 3 +--
> net/mptcp/protocol.c | 4 ++--
> net/phonet/datagram.c | 3 +--
> net/phonet/pep.c | 3 +--
> net/tls/tls_sw.c | 3 ---
> net/unix/af_unix.c | 6 ++----
> net/unix/unix_bpf.c | 5 ++---
> net/xfrm/espintcp.c | 4 +---
> 30 files changed, 69 insertions(+), 92 deletions(-)
>
> diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h
> index 9e2378013642..41714203ace8 100644
> --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h
> +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h
> @@ -565,11 +565,11 @@ void chtls_close(struct sock *sk, long timeout);
> int chtls_disconnect(struct sock *sk, int flags);
> void chtls_shutdown(struct sock *sk, int how);
> void chtls_destroy_sock(struct sock *sk);
> int chtls_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);
> int chtls_recvmsg(struct sock *sk, struct msghdr *msg,
> - size_t len, int nonblock, int flags, int *addr_len);
> + size_t len, int flags, int *addr_len);
> int chtls_sendpage(struct sock *sk, struct page *page,
> int offset, size_t size, int flags);
> int send_tx_flowc_wr(struct sock *sk, int compl,
> u32 snd_nxt, u32 rcv_nxt);
> void chtls_tcp_push(struct sock *sk, int flags);
> diff --git a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
> index c320cc8ca68d..0e7ed2d85482 100644
> --- a/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
> +++ b/drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
> @@ -1424,11 +1424,11 @@ static void chtls_cleanup_rbuf(struct sock *sk, int copied)
> if (must_send || credits >= thres)
> tp->rcv_wup += send_rx_credits(csk, credits);
> }
>
> static int chtls_pt_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int nonblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> struct chtls_sock *csk = rcu_dereference_sk_user_data(sk);
> struct chtls_hws *hws = &csk->tlshws;
> struct net_device *dev = csk->egress_dev;
> struct adapter *adap = netdev2adap(dev);
> @@ -1439,11 +1439,11 @@ static int chtls_pt_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> int target;
> long timeo;
>
> buffers_freed = 0;
>
> - timeo = sock_rcvtimeo(sk, nonblock);
> + timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
> target = sock_rcvlowat(sk, flags & MSG_WAITALL, len);
>
> if (unlikely(csk_flag(sk, CSK_UPDATE_RCV_WND)))
> chtls_cleanup_rbuf(sk, copied);
>
> @@ -1614,21 +1614,21 @@ static int chtls_pt_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
>
> /*
> * Peek at data in a socket's receive buffer.
> */
> static int peekmsg(struct sock *sk, struct msghdr *msg,
> - size_t len, int nonblock, int flags)
> + size_t len, int flags)
> {
> struct tcp_sock *tp = tcp_sk(sk);
> u32 peek_seq, offset;
> struct sk_buff *skb;
> int copied = 0;
> size_t avail; /* amount of available data in current skb */
> long timeo;
>
> lock_sock(sk);
> - timeo = sock_rcvtimeo(sk, nonblock);
> + timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
> peek_seq = tp->copied_seq;
>
> do {
> if (unlikely(tp->urg_data && tp->urg_seq == peek_seq)) {
> if (copied)
> @@ -1735,11 +1735,11 @@ static int peekmsg(struct sock *sk, struct msghdr *msg,
> release_sock(sk);
> return copied;
> }
>
> int chtls_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int nonblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> struct tcp_sock *tp = tcp_sk(sk);
> struct chtls_sock *csk;
> unsigned long avail; /* amount of available data in current skb */
> int buffers_freed;
> @@ -1748,29 +1748,29 @@ int chtls_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> int target; /* Read at least this many bytes */
>
> buffers_freed = 0;
>
> if (unlikely(flags & MSG_OOB))
> - return tcp_prot.recvmsg(sk, msg, len, nonblock, flags,
> + return tcp_prot.recvmsg(sk, msg, len, flags,
> addr_len);
>
> if (unlikely(flags & MSG_PEEK))
> - return peekmsg(sk, msg, len, nonblock, flags);
> + return peekmsg(sk, msg, len, flags);
>
> if (sk_can_busy_loop(sk) &&
> skb_queue_empty_lockless(&sk->sk_receive_queue) &&
> sk->sk_state == TCP_ESTABLISHED)
> - sk_busy_loop(sk, nonblock);
> + sk_busy_loop(sk, flags & MSG_DONTWAIT);
>
> lock_sock(sk);
> csk = rcu_dereference_sk_user_data(sk);
>
> if (is_tls_rx(csk))
> - return chtls_pt_recvmsg(sk, msg, len, nonblock,
> + return chtls_pt_recvmsg(sk, msg, len,
> flags, addr_len);
>
> - timeo = sock_rcvtimeo(sk, nonblock);
> + timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
> target = sock_rcvlowat(sk, flags & MSG_WAITALL, len);
>
> if (unlikely(csk_flag(sk, CSK_UPDATE_RCV_WND)))
> chtls_cleanup_rbuf(sk, copied);
>
> diff --git a/include/net/ping.h b/include/net/ping.h
> index 2fe78874318c..a873c1ac7368 100644
> --- a/include/net/ping.h
> +++ b/include/net/ping.h
> @@ -69,11 +69,11 @@ void ping_close(struct sock *sk, long timeout);
> int ping_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len);
> void ping_err(struct sk_buff *skb, int offset, u32 info);
> int ping_getfrag(void *from, char *to, int offset, int fraglen, int odd,
> struct sk_buff *);
>
> -int ping_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
> +int ping_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> int flags, int *addr_len);
> int ping_common_sendmsg(int family, struct msghdr *msg, size_t len,
> void *user_icmph, size_t icmph_len);
> int ping_queue_rcv_skb(struct sock *sk, struct sk_buff *skb);
> bool ping_rcv(struct sk_buff *skb);
> diff --git a/include/net/sock.h b/include/net/sock.h
> index c4b91fc19b9c..e6564d238d0e 100644
> --- a/include/net/sock.h
> +++ b/include/net/sock.h
> @@ -1200,12 +1200,11 @@ struct proto {
> unsigned int cmd, unsigned long arg);
> #endif
> int (*sendmsg)(struct sock *sk, struct msghdr *msg,
> size_t len);
> int (*recvmsg)(struct sock *sk, struct msghdr *msg,
> - size_t len, int noblock, int flags,
> - int *addr_len);
> + size_t len, int flags, int *addr_len);
> int (*sendpage)(struct sock *sk, struct page *page,
> int offset, size_t size, int flags);
> int (*bind)(struct sock *sk,
> struct sockaddr *addr, int addr_len);
> int (*bind_add)(struct sock *sk,
> diff --git a/include/net/tcp.h b/include/net/tcp.h
> index 6d50a662bf89..679b1964d494 100644
> --- a/include/net/tcp.h
> +++ b/include/net/tcp.h
> @@ -405,11 +405,11 @@ int tcp_getsockopt(struct sock *sk, int level, int optname,
> bool tcp_bpf_bypass_getsockopt(int level, int optname);
> int tcp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval,
> unsigned int optlen);
> void tcp_set_keepalive(struct sock *sk, int val);
> void tcp_syn_ack_timeout(const struct request_sock *req);
> -int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
> +int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> int flags, int *addr_len);
> int tcp_set_rcvlowat(struct sock *sk, int val);
> int tcp_set_window_clamp(struct sock *sk, int val);
> void tcp_update_recv_tstamps(struct sk_buff *skb,
> struct scm_timestamping_internal *tss);
> diff --git a/include/net/tls.h b/include/net/tls.h
> index 6fe78361c8c8..b59f0a63292b 100644
> --- a/include/net/tls.h
> +++ b/include/net/tls.h
> @@ -369,11 +369,11 @@ void tls_sw_release_resources_tx(struct sock *sk);
> void tls_sw_free_ctx_tx(struct tls_context *tls_ctx);
> void tls_sw_free_resources_rx(struct sock *sk);
> void tls_sw_release_resources_rx(struct sock *sk);
> void tls_sw_free_ctx_rx(struct tls_context *tls_ctx);
> int tls_sw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int nonblock, int flags, int *addr_len);
> + int flags, int *addr_len);
> bool tls_sw_sock_is_readable(struct sock *sk);
> ssize_t tls_sw_splice_read(struct socket *sock, loff_t *ppos,
> struct pipe_inode_info *pipe,
> size_t len, unsigned int flags);
>
> diff --git a/include/net/udp.h b/include/net/udp.h
> index f1c2a88c9005..c2dfe95f4da5 100644
> --- a/include/net/udp.h
> +++ b/include/net/udp.h
> @@ -249,17 +249,17 @@ static inline bool udp_sk_bound_dev_eq(struct net *net, int bound_dev_if,
> void udp_destruct_sock(struct sock *sk);
> void skb_consume_udp(struct sock *sk, struct sk_buff *skb, int len);
> int __udp_enqueue_schedule_skb(struct sock *sk, struct sk_buff *skb);
> void udp_skb_destructor(struct sock *sk, struct sk_buff *skb);
> struct sk_buff *__skb_recv_udp(struct sock *sk, unsigned int flags,
> - int noblock, int *off, int *err);
> + int *off, int *err);
> static inline struct sk_buff *skb_recv_udp(struct sock *sk, unsigned int flags,
> - int noblock, int *err)
> + int *err)
> {
> int off = 0;
>
> - return __skb_recv_udp(sk, flags, noblock, &off, err);
> + return __skb_recv_udp(sk, flags, &off, err);
> }
>
> int udp_v4_early_demux(struct sk_buff *skb);
> bool udp_sk_rx_dst_set(struct sock *sk, struct dst_entry *dst);
> int udp_get_port(struct sock *sk, unsigned short snum,
> diff --git a/net/core/sock.c b/net/core/sock.c
> index 7000403eaeb2..60f5ceca36f9 100644
> --- a/net/core/sock.c
> +++ b/net/core/sock.c
> @@ -3486,12 +3486,11 @@ int sock_common_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
> {
> struct sock *sk = sock->sk;
> int addr_len = 0;
> int err;
>
> - err = sk->sk_prot->recvmsg(sk, msg, size, flags & MSG_DONTWAIT,
> - flags & ~MSG_DONTWAIT, &addr_len);
> + err = sk->sk_prot->recvmsg(sk, msg, size, flags, &addr_len);
> if (err >= 0)
> msg->msg_namelen = addr_len;
> return err;
> }
> EXPORT_SYMBOL(sock_common_recvmsg);
> diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c
> index a725dd9bbda8..f24852814fa3 100644
> --- a/net/ieee802154/socket.c
> +++ b/net/ieee802154/socket.c
> @@ -306,17 +306,16 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
> out:
> return err;
> }
>
> static int raw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int noblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> size_t copied = 0;
> int err = -EOPNOTSUPP;
> struct sk_buff *skb;
>
> - flags |= (noblock ? MSG_DONTWAIT : 0);
> skb = skb_recv_datagram(sk, flags, &err);
> if (!skb)
> goto out;
>
> copied = skb->len;
> @@ -694,19 +693,18 @@ static int dgram_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
> out:
> return err;
> }
>
> static int dgram_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int noblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> size_t copied = 0;
> int err = -EOPNOTSUPP;
> struct sk_buff *skb;
> struct dgram_sock *ro = dgram_sk(sk);
> DECLARE_SOCKADDR(struct sockaddr_ieee802154 *, saddr, msg->msg_name);
>
> - flags |= (noblock ? MSG_DONTWAIT : 0);
> skb = skb_recv_datagram(sk, flags, &err);
> if (!skb)
> goto out;
>
> copied = skb->len;
> diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c
> index 72fde2888ad2..195ecfa2f000 100644
> --- a/net/ipv4/af_inet.c
> +++ b/net/ipv4/af_inet.c
> @@ -834,11 +834,11 @@ ssize_t inet_sendpage(struct socket *sock, struct page *page, int offset,
> return sock_no_sendpage(sock, page, offset, size, flags);
> }
> EXPORT_SYMBOL(inet_sendpage);
>
> INDIRECT_CALLABLE_DECLARE(int udp_recvmsg(struct sock *, struct msghdr *,
> - size_t, int, int, int *));
> + size_t, int, int *));
> int inet_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
> int flags)
> {
> struct sock *sk = sock->sk;
> int addr_len = 0;
> @@ -846,12 +846,11 @@ int inet_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
>
> if (likely(!(flags & MSG_ERRQUEUE)))
> sock_rps_record_flow(sk);
>
> err = INDIRECT_CALL_2(sk->sk_prot->recvmsg, tcp_recvmsg, udp_recvmsg,
> - sk, msg, size, flags & MSG_DONTWAIT,
> - flags & ~MSG_DONTWAIT, &addr_len);
> + sk, msg, size, flags, &addr_len);
> if (err >= 0)
> msg->msg_namelen = addr_len;
> return err;
> }
> EXPORT_SYMBOL(inet_recvmsg);
> diff --git a/net/ipv4/ping.c b/net/ipv4/ping.c
> index 550dc5c795c0..64a5f02426ed 100644
> --- a/net/ipv4/ping.c
> +++ b/net/ipv4/ping.c
> @@ -842,11 +842,11 @@ static int ping_v4_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
> goto back_from_confirm;
> err = 0;
> goto out;
> }
>
> -int ping_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
> +int ping_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> int flags, int *addr_len)
> {
> struct inet_sock *isk = inet_sk(sk);
> int family = sk->sk_family;
> struct sk_buff *skb;
> @@ -859,11 +859,10 @@ int ping_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
> goto out;
>
> if (flags & MSG_ERRQUEUE)
> return inet_recv_error(sk, msg, len, addr_len);
>
> - flags |= (noblock ? MSG_DONTWAIT : 0);
> skb = skb_recv_datagram(sk, flags, &err);
> if (!skb)
> goto out;
>
> copied = skb->len;
> diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c
> index c9dd9603f2e7..4056b0da85ea 100644
> --- a/net/ipv4/raw.c
> +++ b/net/ipv4/raw.c
> @@ -751,11 +751,11 @@ static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
> * This should be easy, if there is something there
> * we return it, otherwise we block.
> */
>
> static int raw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int noblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> struct inet_sock *inet = inet_sk(sk);
> size_t copied = 0;
> int err = -EOPNOTSUPP;
> DECLARE_SOCKADDR(struct sockaddr_in *, sin, msg->msg_name);
> @@ -767,11 +767,10 @@ static int raw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> if (flags & MSG_ERRQUEUE) {
> err = ip_recv_error(sk, msg, len, addr_len);
> goto out;
> }
>
> - flags |= (noblock ? MSG_DONTWAIT : 0);
> skb = skb_recv_datagram(sk, flags, &err);
> if (!skb)
> goto out;
>
> copied = skb->len;
> diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
> index e31cf137c614..1e003a3dd678 100644
> --- a/net/ipv4/tcp.c
> +++ b/net/ipv4/tcp.c
> @@ -1875,11 +1875,11 @@ static void tcp_zerocopy_set_hint_for_skb(struct sock *sk,
> mappable_offset = find_next_mappable_frag(frag, zc->recv_skip_hint);
> zc->recv_skip_hint = mappable_offset + partial_frag_remainder;
> }
>
> static int tcp_recvmsg_locked(struct sock *sk, struct msghdr *msg, size_t len,
> - int nonblock, int flags,
> + int flags,
> struct scm_timestamping_internal *tss,
> int *cmsg_flags);
> static int receive_fallback_to_copy(struct sock *sk,
> struct tcp_zerocopy_receive *zc, int inq,
> struct scm_timestamping_internal *tss)
> @@ -1898,11 +1898,11 @@ static int receive_fallback_to_copy(struct sock *sk,
> err = import_single_range(READ, (void __user *)copy_address,
> inq, &iov, &msg.msg_iter);
> if (err)
> return err;
>
> - err = tcp_recvmsg_locked(sk, &msg, inq, /*nonblock=*/1, /*flags=*/0,
> + err = tcp_recvmsg_locked(sk, &msg, inq, MSG_DONTWAIT,
> tss, &zc->msg_flags);
> if (err < 0)
> return err;
>
> zc->copybuf_len = err;
> @@ -2314,11 +2314,11 @@ static int tcp_inq_hint(struct sock *sk)
> * tricks with *seq access order and skb->users are not required.
> * Probably, code can be easily improved even more.
> */
>
> static int tcp_recvmsg_locked(struct sock *sk, struct msghdr *msg, size_t len,
> - int nonblock, int flags,
> + int flags,
> struct scm_timestamping_internal *tss,
> int *cmsg_flags)
> {
> struct tcp_sock *tp = tcp_sk(sk);
> int copied = 0;
> @@ -2335,11 +2335,11 @@ static int tcp_recvmsg_locked(struct sock *sk, struct msghdr *msg, size_t len,
> if (sk->sk_state == TCP_LISTEN)
> goto out;
>
> if (tp->recvmsg_inq)
> *cmsg_flags = TCP_CMSG_INQ;
> - timeo = sock_rcvtimeo(sk, nonblock);
> + timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
>
> /* Urgent data needs to be handled specially. */
> if (flags & MSG_OOB)
> goto recv_urg;
>
> @@ -2554,11 +2554,11 @@ static int tcp_recvmsg_locked(struct sock *sk, struct msghdr *msg, size_t len,
> recv_sndq:
> err = tcp_peek_sndq(sk, msg, len);
> goto out;
> }
>
> -int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
> +int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> int flags, int *addr_len)
> {
> int cmsg_flags = 0, ret, inq;
> struct scm_timestamping_internal tss;
>
> @@ -2566,14 +2566,14 @@ int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
> return inet_recv_error(sk, msg, len, addr_len);
>
> if (sk_can_busy_loop(sk) &&
> skb_queue_empty_lockless(&sk->sk_receive_queue) &&
> sk->sk_state == TCP_ESTABLISHED)
> - sk_busy_loop(sk, nonblock);
> + sk_busy_loop(sk, flags & MSG_DONTWAIT);
>
> lock_sock(sk);
> - ret = tcp_recvmsg_locked(sk, msg, len, nonblock, flags, &tss,
> + ret = tcp_recvmsg_locked(sk, msg, len, flags, &tss,
> &cmsg_flags);
> release_sock(sk);
> sk_defer_free_flush(sk);
>
> if (cmsg_flags && ret >= 0) {
> diff --git a/net/ipv4/tcp_bpf.c b/net/ipv4/tcp_bpf.c
> index 1cdcb4df0eb7..be3947e70fec 100644
> --- a/net/ipv4/tcp_bpf.c
> +++ b/net/ipv4/tcp_bpf.c
> @@ -172,11 +172,10 @@ static int tcp_msg_wait_data(struct sock *sk, struct sk_psock *psock,
> }
>
> static int tcp_bpf_recvmsg_parser(struct sock *sk,
> struct msghdr *msg,
> size_t len,
> - int nonblock,
> int flags,
> int *addr_len)
> {
> struct sk_psock *psock;
> int copied;
> @@ -184,11 +183,11 @@ static int tcp_bpf_recvmsg_parser(struct sock *sk,
> if (unlikely(flags & MSG_ERRQUEUE))
> return inet_recv_error(sk, msg, len, addr_len);
>
> psock = sk_psock_get(sk);
> if (unlikely(!psock))
> - return tcp_recvmsg(sk, msg, len, nonblock, flags, addr_len);
> + return tcp_recvmsg(sk, msg, len, flags, addr_len);
>
> lock_sock(sk);
> msg_bytes_ready:
> copied = sk_msg_recvmsg(sk, psock, msg, len, flags);
> if (!copied) {
> @@ -209,11 +208,11 @@ static int tcp_bpf_recvmsg_parser(struct sock *sk,
> if (sk->sk_state == TCP_CLOSE) {
> copied = -ENOTCONN;
> goto out;
> }
>
> - timeo = sock_rcvtimeo(sk, nonblock);
> + timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
> if (!timeo) {
> copied = -EAGAIN;
> goto out;
> }
>
> @@ -232,41 +231,41 @@ static int tcp_bpf_recvmsg_parser(struct sock *sk,
> sk_psock_put(sk, psock);
> return copied;
> }
>
> static int tcp_bpf_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int nonblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> struct sk_psock *psock;
> int copied, ret;
>
> if (unlikely(flags & MSG_ERRQUEUE))
> return inet_recv_error(sk, msg, len, addr_len);
>
> psock = sk_psock_get(sk);
> if (unlikely(!psock))
> - return tcp_recvmsg(sk, msg, len, nonblock, flags, addr_len);
> + return tcp_recvmsg(sk, msg, len, flags, addr_len);
> if (!skb_queue_empty(&sk->sk_receive_queue) &&
> sk_psock_queue_empty(psock)) {
> sk_psock_put(sk, psock);
> - return tcp_recvmsg(sk, msg, len, nonblock, flags, addr_len);
> + return tcp_recvmsg(sk, msg, len, flags, addr_len);
> }
> lock_sock(sk);
> msg_bytes_ready:
> copied = sk_msg_recvmsg(sk, psock, msg, len, flags);
> if (!copied) {
> long timeo;
> int data;
>
> - timeo = sock_rcvtimeo(sk, nonblock);
> + timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
> data = tcp_msg_wait_data(sk, psock, timeo);
> if (data) {
> if (!sk_psock_queue_empty(psock))
> goto msg_bytes_ready;
> release_sock(sk);
> sk_psock_put(sk, psock);
> - return tcp_recvmsg(sk, msg, len, nonblock, flags, addr_len);
> + return tcp_recvmsg(sk, msg, len, flags, addr_len);
> }
> copied = -EAGAIN;
> }
> ret = copied;
> release_sock(sk);
> diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c
> index 6b4d8361560f..ad9722cfa0f2 100644
> --- a/net/ipv4/udp.c
> +++ b/net/ipv4/udp.c
> @@ -1724,20 +1724,19 @@ int udp_ioctl(struct sock *sk, int cmd, unsigned long arg)
> return 0;
> }
> EXPORT_SYMBOL(udp_ioctl);
>
> struct sk_buff *__skb_recv_udp(struct sock *sk, unsigned int flags,
> - int noblock, int *off, int *err)
> + int *off, int *err)
> {
> struct sk_buff_head *sk_queue = &sk->sk_receive_queue;
> struct sk_buff_head *queue;
> struct sk_buff *last;
> long timeo;
> int error;
>
> queue = &udp_sk(sk)->reader_queue;
> - flags |= noblock ? MSG_DONTWAIT : 0;
> timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
> do {
> struct sk_buff *skb;
>
> error = sock_error(sk);
> @@ -1803,11 +1802,11 @@ int udp_read_sock(struct sock *sk, read_descriptor_t *desc,
>
> while (1) {
> struct sk_buff *skb;
> int err, used;
>
> - skb = skb_recv_udp(sk, 0, 1, &err);
> + skb = skb_recv_udp(sk, MSG_DONTWAIT, &err);
> if (!skb)
> return err;
>
> if (udp_lib_checksum_complete(skb)) {
> __UDP_INC_STATS(sock_net(sk), UDP_MIB_CSUMERRORS,
> @@ -1841,11 +1840,11 @@ EXPORT_SYMBOL(udp_read_sock);
> /*
> * This should be easy, if there is something there we
> * return it, otherwise we block.
> */
>
> -int udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
> +int udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> int flags, int *addr_len)
> {
> struct inet_sock *inet = inet_sk(sk);
> DECLARE_SOCKADDR(struct sockaddr_in *, sin, msg->msg_name);
> struct sk_buff *skb;
> @@ -1857,11 +1856,11 @@ int udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
> if (flags & MSG_ERRQUEUE)
> return ip_recv_error(sk, msg, len, addr_len);
>
> try_again:
> off = sk_peek_offset(sk, flags);
> - skb = __skb_recv_udp(sk, flags, noblock, &off, &err);
> + skb = __skb_recv_udp(sk, flags, &off, &err);
> if (!skb)
> return err;
>
> ulen = udp_skb_len(skb);
> copied = len;
> diff --git a/net/ipv4/udp_bpf.c b/net/ipv4/udp_bpf.c
> index bbe6569c9ad3..5da2e2ae5de5 100644
> --- a/net/ipv4/udp_bpf.c
> +++ b/net/ipv4/udp_bpf.c
> @@ -9,18 +9,18 @@
> #include "udp_impl.h"
>
> static struct proto *udpv6_prot_saved __read_mostly;
>
> static int sk_udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int noblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> #if IS_ENABLED(CONFIG_IPV6)
> if (sk->sk_family == AF_INET6)
> - return udpv6_prot_saved->recvmsg(sk, msg, len, noblock, flags,
> + return udpv6_prot_saved->recvmsg(sk, msg, len, flags,
> addr_len);
> #endif
> - return udp_prot.recvmsg(sk, msg, len, noblock, flags, addr_len);
> + return udp_prot.recvmsg(sk, msg, len, flags, addr_len);
> }
>
> static bool udp_sk_has_data(struct sock *sk)
> {
> return !skb_queue_empty(&udp_sk(sk)->reader_queue) ||
> @@ -59,39 +59,39 @@ static int udp_msg_wait_data(struct sock *sk, struct sk_psock *psock,
> remove_wait_queue(sk_sleep(sk), &wait);
> return ret;
> }
>
> static int udp_bpf_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int nonblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> struct sk_psock *psock;
> int copied, ret;
>
> if (unlikely(flags & MSG_ERRQUEUE))
> return inet_recv_error(sk, msg, len, addr_len);
>
> psock = sk_psock_get(sk);
> if (unlikely(!psock))
> - return sk_udp_recvmsg(sk, msg, len, nonblock, flags, addr_len);
> + return sk_udp_recvmsg(sk, msg, len, flags, addr_len);
>
> if (!psock_has_data(psock)) {
> - ret = sk_udp_recvmsg(sk, msg, len, nonblock, flags, addr_len);
> + ret = sk_udp_recvmsg(sk, msg, len, flags, addr_len);
> goto out;
> }
>
> msg_bytes_ready:
> copied = sk_msg_recvmsg(sk, psock, msg, len, flags);
> if (!copied) {
> long timeo;
> int data;
>
> - timeo = sock_rcvtimeo(sk, nonblock);
> + timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
> data = udp_msg_wait_data(sk, psock, timeo);
> if (data) {
> if (psock_has_data(psock))
> goto msg_bytes_ready;
> - ret = sk_udp_recvmsg(sk, msg, len, nonblock, flags, addr_len);
> + ret = sk_udp_recvmsg(sk, msg, len, flags, addr_len);
> goto out;
> }
> copied = -EAGAIN;
> }
> ret = copied;
> diff --git a/net/ipv4/udp_impl.h b/net/ipv4/udp_impl.h
> index 2878d8285caf..a6574ac08472 100644
> --- a/net/ipv4/udp_impl.h
> +++ b/net/ipv4/udp_impl.h
> @@ -15,11 +15,11 @@ void udp_v4_rehash(struct sock *sk);
> int udp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval,
> unsigned int optlen);
> int udp_getsockopt(struct sock *sk, int level, int optname,
> char __user *optval, int __user *optlen);
>
> -int udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
> +int udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> int flags, int *addr_len);
> int udp_sendpage(struct sock *sk, struct page *page, int offset, size_t size,
> int flags);
> void udp_destroy_sock(struct sock *sk);
>
> diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
> index 7d7b7523d126..6595a78672c8 100644
> --- a/net/ipv6/af_inet6.c
> +++ b/net/ipv6/af_inet6.c
> @@ -652,11 +652,11 @@ int inet6_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
> return INDIRECT_CALL_2(prot->sendmsg, tcp_sendmsg, udpv6_sendmsg,
> sk, msg, size);
> }
>
> INDIRECT_CALLABLE_DECLARE(int udpv6_recvmsg(struct sock *, struct msghdr *,
> - size_t, int, int, int *));
> + size_t, int, int *));
> int inet6_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
> int flags)
> {
> struct sock *sk = sock->sk;
> const struct proto *prot;
> @@ -667,12 +667,11 @@ int inet6_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
> sock_rps_record_flow(sk);
>
> /* IPV6_ADDRFORM can change sk->sk_prot under us. */
> prot = READ_ONCE(sk->sk_prot);
> err = INDIRECT_CALL_2(prot->recvmsg, tcp_recvmsg, udpv6_recvmsg,
> - sk, msg, size, flags & MSG_DONTWAIT,
> - flags & ~MSG_DONTWAIT, &addr_len);
> + sk, msg, size, flags, &addr_len);
> if (err >= 0)
> msg->msg_namelen = addr_len;
> return err;
> }
>
> diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
> index 8bb41f3b246a..0d7c13d33d1a 100644
> --- a/net/ipv6/raw.c
> +++ b/net/ipv6/raw.c
> @@ -458,11 +458,11 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
> * This should be easy, if there is something there
> * we return it, otherwise we block.
> */
>
> static int rawv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int noblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> struct ipv6_pinfo *np = inet6_sk(sk);
> DECLARE_SOCKADDR(struct sockaddr_in6 *, sin6, msg->msg_name);
> struct sk_buff *skb;
> size_t copied;
> @@ -475,11 +475,10 @@ static int rawv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> return ipv6_recv_error(sk, msg, len, addr_len);
>
> if (np->rxpmtu && np->rxopt.bits.rxpmtu)
> return ipv6_recv_rxpmtu(sk, msg, len, addr_len);
>
> - flags |= (noblock ? MSG_DONTWAIT : 0);
> skb = skb_recv_datagram(sk, flags, &err);
> if (!skb)
> goto out;
>
> copied = skb->len;
> diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
> index 7f0fa9bd9ffe..db9449b52dbe 100644
> --- a/net/ipv6/udp.c
> +++ b/net/ipv6/udp.c
> @@ -320,11 +320,11 @@ static int udp6_skb_len(struct sk_buff *skb)
> * This should be easy, if there is something there we
> * return it, otherwise we block.
> */
>
> int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int noblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> struct ipv6_pinfo *np = inet6_sk(sk);
> struct inet_sock *inet = inet_sk(sk);
> struct sk_buff *skb;
> unsigned int ulen, copied;
> @@ -340,11 +340,11 @@ int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> if (np->rxpmtu && np->rxopt.bits.rxpmtu)
> return ipv6_recv_rxpmtu(sk, msg, len, addr_len);
>
> try_again:
> off = sk_peek_offset(sk, flags);
> - skb = __skb_recv_udp(sk, flags, noblock, &off, &err);
> + skb = __skb_recv_udp(sk, flags, &off, &err);
> if (!skb)
> return err;
>
> ulen = udp6_skb_len(skb);
> copied = len;
> diff --git a/net/ipv6/udp_impl.h b/net/ipv6/udp_impl.h
> index b2fcc46c1630..1cd65d03c257 100644
> --- a/net/ipv6/udp_impl.h
> +++ b/net/ipv6/udp_impl.h
> @@ -18,11 +18,11 @@ void udp_v6_rehash(struct sock *sk);
> int udpv6_getsockopt(struct sock *sk, int level, int optname,
> char __user *optval, int __user *optlen);
> int udpv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval,
> unsigned int optlen);
> int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len);
> -int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
> +int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> int flags, int *addr_len);
> void udpv6_destroy_sock(struct sock *sk);
>
> #ifdef CONFIG_PROC_FS
> int udp6_seq_show(struct seq_file *seq, void *v);
> diff --git a/net/l2tp/l2tp_ip.c b/net/l2tp/l2tp_ip.c
> index c6a5cc2d88e7..6af09e188e52 100644
> --- a/net/l2tp/l2tp_ip.c
> +++ b/net/l2tp/l2tp_ip.c
> @@ -513,22 +513,21 @@ static int l2tp_ip_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
> rc = -EHOSTUNREACH;
> goto out;
> }
>
> static int l2tp_ip_recvmsg(struct sock *sk, struct msghdr *msg,
> - size_t len, int noblock, int flags, int *addr_len)
> + size_t len, int flags, int *addr_len)
> {
> struct inet_sock *inet = inet_sk(sk);
> size_t copied = 0;
> int err = -EOPNOTSUPP;
> DECLARE_SOCKADDR(struct sockaddr_in *, sin, msg->msg_name);
> struct sk_buff *skb;
>
> if (flags & MSG_OOB)
> goto out;
>
> - flags |= (noblock ? MSG_DONTWAIT : 0);
> skb = skb_recv_datagram(sk, flags, &err);
> if (!skb)
> goto out;
>
> copied = skb->len;
> diff --git a/net/l2tp/l2tp_ip6.c b/net/l2tp/l2tp_ip6.c
> index 97fde8a9209b..217c7192691e 100644
> --- a/net/l2tp/l2tp_ip6.c
> +++ b/net/l2tp/l2tp_ip6.c
> @@ -655,11 +655,11 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
> err = 0;
> goto done;
> }
>
> static int l2tp_ip6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int noblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> struct ipv6_pinfo *np = inet6_sk(sk);
> DECLARE_SOCKADDR(struct sockaddr_l2tpip6 *, lsa, msg->msg_name);
> size_t copied = 0;
> int err = -EOPNOTSUPP;
> @@ -669,11 +669,10 @@ static int l2tp_ip6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> goto out;
>
> if (flags & MSG_ERRQUEUE)
> return ipv6_recv_error(sk, msg, len, addr_len);
>
> - flags |= (noblock ? MSG_DONTWAIT : 0);
> skb = skb_recv_datagram(sk, flags, &err);
> if (!skb)
> goto out;
>
> copied = skb->len;
> diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c
> index 0cbea3b6d0a4..56baeae0b960 100644
> --- a/net/mptcp/protocol.c
> +++ b/net/mptcp/protocol.c
> @@ -2010,11 +2010,11 @@ static unsigned int mptcp_inq_hint(const struct sock *sk)
>
> return 0;
> }
>
> static int mptcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int nonblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> struct mptcp_sock *msk = mptcp_sk(sk);
> struct scm_timestamping_internal tss;
> int copied = 0, cmsg_flags = 0;
> int target;
> @@ -2028,11 +2028,11 @@ static int mptcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> if (unlikely(sk->sk_state == TCP_LISTEN)) {
> copied = -ENOTCONN;
> goto out_err;
> }
>
> - timeo = sock_rcvtimeo(sk, nonblock);
> + timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
>
> len = min_t(size_t, len, INT_MAX);
> target = sock_rcvlowat(sk, flags & MSG_WAITALL, len);
>
> if (unlikely(msk->recvmsg_inq))
> diff --git a/net/phonet/datagram.c b/net/phonet/datagram.c
> index 3f2e62b63dd4..ff5f49ab236e 100644
> --- a/net/phonet/datagram.c
> +++ b/net/phonet/datagram.c
> @@ -110,22 +110,21 @@ static int pn_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
> /* If ok, return len. */
> return (err >= 0) ? len : err;
> }
>
> static int pn_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int noblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> struct sk_buff *skb = NULL;
> struct sockaddr_pn sa;
> int rval = -EOPNOTSUPP;
> int copylen;
>
> if (flags & ~(MSG_PEEK|MSG_TRUNC|MSG_DONTWAIT|MSG_NOSIGNAL|
> MSG_CMSG_COMPAT))
> goto out_nofree;
>
> - flags |= (noblock ? MSG_DONTWAIT : 0);
> skb = skb_recv_datagram(sk, flags, &rval);
> if (skb == NULL)
> goto out_nofree;
>
> pn_skb_get_src_sockaddr(skb, &sa);
> diff --git a/net/phonet/pep.c b/net/phonet/pep.c
> index 441a26706592..83ea13a50690 100644
> --- a/net/phonet/pep.c
> +++ b/net/phonet/pep.c
> @@ -1237,11 +1237,11 @@ struct sk_buff *pep_read(struct sock *sk)
> pipe_grant_credits(sk, GFP_ATOMIC);
> return skb;
> }
>
> static int pep_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int noblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> struct sk_buff *skb;
> int err;
>
> if (flags & ~(MSG_OOB|MSG_PEEK|MSG_TRUNC|MSG_DONTWAIT|MSG_WAITALL|
> @@ -1266,11 +1266,10 @@ static int pep_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> }
> if (flags & MSG_OOB)
> return -EINVAL;
> }
>
> - flags |= (noblock ? MSG_DONTWAIT : 0);
> skb = skb_recv_datagram(sk, flags, &err);
> lock_sock(sk);
> if (skb == NULL) {
> if (err == -ENOTCONN && sk->sk_state == TCP_CLOSE_WAIT)
> err = -ECONNRESET;
> diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
> index 2e8a896af81a..17c4e236ec8b 100644
> --- a/net/tls/tls_sw.c
> +++ b/net/tls/tls_sw.c
> @@ -1720,11 +1720,10 @@ static int process_rx_list(struct tls_sw_context_rx *ctx,
> }
>
> int tls_sw_recvmsg(struct sock *sk,
> struct msghdr *msg,
> size_t len,
> - int nonblock,
> int flags,
> int *addr_len)
> {
> struct tls_context *tls_ctx = tls_get_ctx(sk);
> struct tls_sw_context_rx *ctx = tls_sw_ctx_rx(tls_ctx);
> @@ -1742,12 +1741,10 @@ int tls_sw_recvmsg(struct sock *sk,
> bool is_kvec = iov_iter_is_kvec(&msg->msg_iter);
> bool is_peek = flags & MSG_PEEK;
> bool bpf_strp_enabled;
> bool zc_capable;
>
> - flags |= nonblock;
> -
> if (unlikely(flags & MSG_ERRQUEUE))
> return sock_recv_errqueue(sk, msg, len, SOL_IP, IP_RECVERR);
>
> psock = sk_psock_get(sk);
> lock_sock(sk);
> diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
> index fecbd95da918..e1dd9e9c8452 100644
> --- a/net/unix/af_unix.c
> +++ b/net/unix/af_unix.c
> @@ -2482,12 +2482,11 @@ static int unix_dgram_recvmsg(struct socket *sock, struct msghdr *msg, size_t si
>
> #ifdef CONFIG_BPF_SYSCALL
> const struct proto *prot = READ_ONCE(sk->sk_prot);
>
> if (prot != &unix_dgram_proto)
> - return prot->recvmsg(sk, msg, size, flags & MSG_DONTWAIT,
> - flags & ~MSG_DONTWAIT, NULL);
> + return prot->recvmsg(sk, msg, size, flags, NULL);
> #endif
> return __unix_dgram_recvmsg(sk, msg, size, flags);
> }
>
> static int unix_read_sock(struct sock *sk, read_descriptor_t *desc,
> @@ -2915,12 +2914,11 @@ static int unix_stream_recvmsg(struct socket *sock, struct msghdr *msg,
> #ifdef CONFIG_BPF_SYSCALL
> struct sock *sk = sock->sk;
> const struct proto *prot = READ_ONCE(sk->sk_prot);
>
> if (prot != &unix_stream_proto)
> - return prot->recvmsg(sk, msg, size, flags & MSG_DONTWAIT,
> - flags & ~MSG_DONTWAIT, NULL);
> + return prot->recvmsg(sk, msg, size, flags, NULL);
> #endif
> return unix_stream_read_generic(&state, true);
> }
>
> static int unix_stream_splice_actor(struct sk_buff *skb,
> diff --git a/net/unix/unix_bpf.c b/net/unix/unix_bpf.c
> index 452376c6f419..7cf14c6b1725 100644
> --- a/net/unix/unix_bpf.c
> +++ b/net/unix/unix_bpf.c
> @@ -46,12 +46,11 @@ static int __unix_recvmsg(struct sock *sk, struct msghdr *msg,
> else
> return __unix_stream_recvmsg(sk, msg, len, flags);
> }
>
> static int unix_bpf_recvmsg(struct sock *sk, struct msghdr *msg,
> - size_t len, int nonblock, int flags,
> - int *addr_len)
> + size_t len, int flags, int *addr_len)
> {
> struct unix_sock *u = unix_sk(sk);
> struct sk_psock *psock;
> int copied;
>
> @@ -71,11 +70,11 @@ static int unix_bpf_recvmsg(struct sock *sk, struct msghdr *msg,
> copied = sk_msg_recvmsg(sk, psock, msg, len, flags);
> if (!copied) {
> long timeo;
> int data;
>
> - timeo = sock_rcvtimeo(sk, nonblock);
> + timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
> data = unix_msg_wait_data(sk, psock, timeo);
> if (data) {
> if (!sk_psock_queue_empty(psock))
> goto msg_bytes_ready;
> mutex_unlock(&u->iolock);
> diff --git a/net/xfrm/espintcp.c b/net/xfrm/espintcp.c
> index 1f08ebf7d80c..82d14eea1b5a 100644
> --- a/net/xfrm/espintcp.c
> +++ b/net/xfrm/espintcp.c
> @@ -129,20 +129,18 @@ static int espintcp_parse(struct strparser *strp, struct sk_buff *skb)
>
> return len;
> }
>
> static int espintcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
> - int nonblock, int flags, int *addr_len)
> + int flags, int *addr_len)
> {
> struct espintcp_ctx *ctx = espintcp_getctx(sk);
> struct sk_buff *skb;
> int err = 0;
> int copied;
> int off = 0;
>
> - flags |= nonblock ? MSG_DONTWAIT : 0;
> -
> skb = __skb_recv_datagram(sk, &ctx->ike_queue, flags, &off, &err);
> if (!skb) {
> if (err == -EAGAIN && sk->sk_shutdown & RCV_SHUTDOWN)
> return 0;
> return err;
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