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Date: Mon, 11 Apr 2022 14:49:55 +0200
From: Oliver Hartkopp <socketcan@...tkopp.net>
To: netdev@...r.kernel.org, kuba@...nel.org, davem@...emloft.net
Cc: Oliver Hartkopp <socketcan@...tkopp.net>
Subject: [PATCH net-next v3] net: remove noblock parameter from recvmsg() entities
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
where needed (to preserve for the formerly 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 | 22 +++++++++----------
include/net/ping.h | 2 +-
include/net/sctp/sctp.h | 2 +-
include/net/sock.h | 3 +--
include/net/tcp.h | 2 +-
include/net/tls.h | 2 +-
include/net/udp.h | 8 +++----
net/core/sock.c | 3 +--
net/dccp/dccp.h | 4 ++--
net/dccp/proto.c | 6 ++---
net/ieee802154/socket.c | 6 ++---
net/ipv4/af_inet.c | 5 ++---
net/ipv4/ping.c | 5 ++---
net/ipv4/raw.c | 3 +--
net/ipv4/tcp.c | 19 +++++++---------
net/ipv4/tcp_bpf.c | 15 ++++++-------
net/ipv4/udp.c | 11 +++++-----
net/ipv4/udp_bpf.c | 17 +++++++-------
net/ipv4/udp_impl.h | 4 ++--
net/ipv6/af_inet6.c | 5 ++---
net/ipv6/raw.c | 3 +--
net/ipv6/udp.c | 4 ++--
net/ipv6/udp_impl.h | 4 ++--
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/sctp/socket.c | 16 ++++++--------
net/sctp/ulpevent.c | 2 +-
net/sunrpc/svcsock.c | 2 +-
net/sunrpc/xprtsock.c | 2 +-
net/tls/tls_sw.c | 3 ---
net/unix/af_unix.c | 6 ++---
net/unix/unix_bpf.c | 5 ++---
net/xfrm/espintcp.c | 4 +---
37 files changed, 91 insertions(+), 122 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..539992dad8ba 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 +1748,27 @@ 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,
- addr_len);
+ 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,
- flags, addr_len);
+ 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 b68fbfdb606f..e4ff3911cbf5 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);
enum skb_drop_reason ping_rcv(struct sk_buff *skb);
diff --git a/include/net/sctp/sctp.h b/include/net/sctp/sctp.h
index bf3716fe83e0..a04999ee99b0 100644
--- a/include/net/sctp/sctp.h
+++ b/include/net/sctp/sctp.h
@@ -101,11 +101,11 @@ __poll_t sctp_poll(struct file *file, struct socket *sock,
void sctp_sock_rfree(struct sk_buff *skb);
void sctp_copy_sock(struct sock *newsk, struct sock *sk,
struct sctp_association *asoc);
extern struct percpu_counter sctp_sockets_allocated;
int sctp_asconf_mgmt(struct sctp_sock *, struct sctp_sockaddr_entry *);
-struct sk_buff *sctp_skb_recv_datagram(struct sock *, int, int, int *);
+struct sk_buff *sctp_skb_recv_datagram(struct sock *, int, int *);
typedef int (*sctp_callback_t)(struct sctp_endpoint *, struct sctp_transport *, void *);
void sctp_transport_walk_start(struct rhashtable_iter *iter);
void sctp_transport_walk_stop(struct rhashtable_iter *iter);
struct sctp_transport *sctp_transport_get_next(struct net *net,
diff --git a/include/net/sock.h b/include/net/sock.h
index 1a988e605f09..a01d6c421aa2 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..b83a00330566 100644
--- a/include/net/udp.h
+++ b/include/net/udp.h
@@ -248,18 +248,18 @@ static inline bool udp_sk_bound_dev_eq(struct net *net, int bound_dev_if,
/* net/ipv4/udp.c */
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);
+struct sk_buff *__skb_recv_udp(struct sock *sk, unsigned int flags, 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 05e0cfa064b6..29abec3eabd8 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -3504,12 +3504,11 @@ 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/dccp/dccp.h b/net/dccp/dccp.h
index 671c377f0889..7dfc00c9fb32 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -291,12 +291,12 @@ int dccp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen);
int dccp_setsockopt(struct sock *sk, int level, int optname,
sockptr_t optval, unsigned int optlen);
int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg);
int dccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);
-int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
- int flags, int *addr_len);
+int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int flags,
+ int *addr_len);
void dccp_shutdown(struct sock *sk, int how);
int inet_dccp_listen(struct socket *sock, int backlog);
__poll_t dccp_poll(struct file *file, struct socket *sock,
poll_table *wait);
int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index a976b4d29892..58421f94427e 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -789,12 +789,12 @@ int dccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
goto out_release;
}
EXPORT_SYMBOL_GPL(dccp_sendmsg);
-int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
- int flags, int *addr_len)
+int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int flags,
+ int *addr_len)
{
const struct dccp_hdr *dh;
long timeo;
lock_sock(sk);
@@ -802,11 +802,11 @@ int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
if (sk->sk_state == DCCP_LISTEN) {
len = -ENOTCONN;
goto out;
}
- timeo = sock_rcvtimeo(sk, nonblock);
+ timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
do {
struct sk_buff *skb = skb_peek(&sk->sk_receive_queue);
if (skb == NULL)
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 2897fcf71211..319c181bfbb6 100644
--- a/net/ipv4/ping.c
+++ b/net/ipv4/ping.c
@@ -842,12 +842,12 @@ 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 flags, int *addr_len)
+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;
int copied, err;
@@ -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..e20b87b3bf90 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1875,12 +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,
- struct scm_timestamping_internal *tss,
+ 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 +1897,11 @@ 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;
@@ -2314,12 +2313,11 @@ 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,
- struct scm_timestamping_internal *tss,
+ int flags, struct scm_timestamping_internal *tss,
int *cmsg_flags)
{
struct tcp_sock *tp = tcp_sk(sk);
int copied = 0;
u32 peek_seq;
@@ -2335,11 +2333,11 @@ 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;
@@ -2554,27 +2552,26 @@ 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 flags, int *addr_len)
+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;
if (unlikely(flags & MSG_ERRQUEUE))
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,
- &cmsg_flags);
+ ret = tcp_recvmsg_locked(sk, msg, len, flags, &tss, &cmsg_flags);
release_sock(sk);
sk_defer_free_flush(sk);
if (cmsg_flags && ret >= 0) {
if (cmsg_flags & TCP_CMSG_TS)
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..aa8545ca6964 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,
@@ -1841,12 +1840,12 @@ 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 flags, int *addr_len)
+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;
unsigned int ulen, copied;
@@ -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..ff15918b7bdc 100644
--- a/net/ipv4/udp_bpf.c
+++ b/net/ipv4/udp_bpf.c
@@ -9,18 +9,17 @@
#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,
- addr_len);
+ 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 +58,39 @@ 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..4ba7a88a1b1d 100644
--- a/net/ipv4/udp_impl.h
+++ b/net/ipv4/udp_impl.h
@@ -15,12 +15,12 @@ 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 flags, int *addr_len);
+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);
#ifdef CONFIG_PROC_FS
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..4251e49d32a0 100644
--- a/net/ipv6/udp_impl.h
+++ b/net/ipv6/udp_impl.h
@@ -18,12 +18,12 @@ 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 flags, int *addr_len);
+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);
#endif
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 8f54293c1d88..0492aa9308c7 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/sctp/socket.c b/net/sctp/socket.c
index 3e1a9600be5e..4c7865f14064 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -2082,32 +2082,31 @@ static int sctp_skb_pull(struct sk_buff *skb, int len)
*
* flags - flags sent or received with the user message, see Section
* 5 for complete description of the flags.
*/
static int sctp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
- int noblock, int flags, int *addr_len)
+ int flags, int *addr_len)
{
struct sctp_ulpevent *event = NULL;
struct sctp_sock *sp = sctp_sk(sk);
struct sk_buff *skb, *head_skb;
int copied;
int err = 0;
int skb_len;
- pr_debug("%s: sk:%p, msghdr:%p, len:%zd, noblock:%d, flags:0x%x, "
- "addr_len:%p)\n", __func__, sk, msg, len, noblock, flags,
- addr_len);
+ pr_debug("%s: sk:%p, msghdr:%p, len:%zd, flags:0x%x, addr_len:%p)\n",
+ __func__, sk, msg, len, flags, addr_len);
lock_sock(sk);
if (sctp_style(sk, TCP) && !sctp_sstate(sk, ESTABLISHED) &&
!sctp_sstate(sk, CLOSING) && !sctp_sstate(sk, CLOSED)) {
err = -ENOTCONN;
goto out;
}
- skb = sctp_skb_recv_datagram(sk, flags, noblock, &err);
+ skb = sctp_skb_recv_datagram(sk, flags, &err);
if (!skb)
goto out;
/* Get the total length of the skb including any skb's in the
* frag_list.
@@ -8976,18 +8975,17 @@ static int sctp_wait_for_packet(struct sock *sk, int *err, long *timeo_p)
/* Receive a datagram.
* Note: This is pretty much the same routine as in core/datagram.c
* with a few changes to make lksctp work.
*/
-struct sk_buff *sctp_skb_recv_datagram(struct sock *sk, int flags,
- int noblock, int *err)
+struct sk_buff *sctp_skb_recv_datagram(struct sock *sk, int flags, int *err)
{
int error;
struct sk_buff *skb;
long timeo;
- timeo = sock_rcvtimeo(sk, noblock);
+ timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
pr_debug("%s: timeo:%ld, max:%ld\n", __func__, timeo,
MAX_SCHEDULE_TIMEOUT);
do {
@@ -9016,11 +9014,11 @@ struct sk_buff *sctp_skb_recv_datagram(struct sock *sk, int flags,
if (sk->sk_shutdown & RCV_SHUTDOWN)
break;
if (sk_can_busy_loop(sk)) {
- sk_busy_loop(sk, noblock);
+ sk_busy_loop(sk, flags & MSG_DONTWAIT);
if (!skb_queue_empty_lockless(&sk->sk_receive_queue))
continue;
}
diff --git a/net/sctp/ulpevent.c b/net/sctp/ulpevent.c
index 0c3d2b4d7321..8920ca92a011 100644
--- a/net/sctp/ulpevent.c
+++ b/net/sctp/ulpevent.c
@@ -1061,11 +1061,11 @@ void sctp_ulpevent_read_nxtinfo(const struct sctp_ulpevent *event,
struct sock *sk)
{
struct sk_buff *skb;
int err;
- skb = sctp_skb_recv_datagram(sk, MSG_PEEK, 1, &err);
+ skb = sctp_skb_recv_datagram(sk, MSG_PEEK | MSG_DONTWAIT, &err);
if (skb != NULL) {
__sctp_ulpevent_read_nxtinfo(sctp_skb2event(skb),
msghdr, skb);
/* Just release refcount here. */
kfree_skb(skb);
diff --git a/net/sunrpc/svcsock.c b/net/sunrpc/svcsock.c
index 478f857cdaed..a21f5684345f 100644
--- a/net/sunrpc/svcsock.c
+++ b/net/sunrpc/svcsock.c
@@ -462,11 +462,11 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp)
clear_bit(XPT_DATA, &svsk->sk_xprt.xpt_flags);
err = kernel_recvmsg(svsk->sk_sock, &msg, NULL,
0, 0, MSG_PEEK | MSG_DONTWAIT);
if (err < 0)
goto out_recv_err;
- skb = skb_recv_udp(svsk->sk_sk, 0, 1, &err);
+ skb = skb_recv_udp(svsk->sk_sk, MSG_DONTWAIT, &err);
if (!skb)
goto out_recv_err;
len = svc_addr_len(svc_addr(rqstp));
rqstp->rq_addrlen = len;
diff --git a/net/sunrpc/xprtsock.c b/net/sunrpc/xprtsock.c
index 78af7518f263..d11aa2b7c532 100644
--- a/net/sunrpc/xprtsock.c
+++ b/net/sunrpc/xprtsock.c
@@ -1335,11 +1335,11 @@ static void xs_udp_data_receive(struct sock_xprt *transport)
mutex_lock(&transport->recv_mutex);
sk = transport->inet;
if (sk == NULL)
goto out;
for (;;) {
- skb = skb_recv_udp(sk, 0, 1, &err);
+ skb = skb_recv_udp(sk, MSG_DONTWAIT, &err);
if (skb == NULL)
break;
xs_udp_data_read_skb(&transport->xprt, sk, skb);
consume_skb(skb);
cond_resched();
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;
--
2.30.2
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