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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
f4b41f062c ("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@hartkopp.net>
Link: https://lore.kernel.org/r/20220411124955.154876-1-socketcan@hartkopp.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Oliver Hartkopp 2022-04-11 14:49:55 +02:00 committed by Paolo Abeni
parent f015980900
commit ec095263a9
37 changed files with 91 additions and 122 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls.h
View File

@ -567,7 +567,7 @@ void chtls_shutdown(struct sock *sk, int how);
void chtls_destroy_sock(struct sock *sk); void chtls_destroy_sock(struct sock *sk);
int chtls_sendmsg(struct sock *sk, struct msghdr *msg, size_t size); int chtls_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);
int chtls_recvmsg(struct sock *sk, struct msghdr *msg, 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 chtls_sendpage(struct sock *sk, struct page *page,
int offset, size_t size, int flags); int offset, size_t size, int flags);
int send_tx_flowc_wr(struct sock *sk, int compl, int send_tx_flowc_wr(struct sock *sk, int compl,

22
drivers/net/ethernet/chelsio/inline_crypto/chtls/chtls_io.c
View File

@ -1426,7 +1426,7 @@ static void chtls_cleanup_rbuf(struct sock *sk, int copied)
} }
static int chtls_pt_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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_sock *csk = rcu_dereference_sk_user_data(sk);
struct chtls_hws *hws = &csk->tlshws; struct chtls_hws *hws = &csk->tlshws;
@ -1441,7 +1441,7 @@ static int chtls_pt_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
buffers_freed = 0; buffers_freed = 0;
timeo = sock_rcvtimeo(sk, nonblock); timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
target = sock_rcvlowat(sk, flags & MSG_WAITALL, len); target = sock_rcvlowat(sk, flags & MSG_WAITALL, len);
if (unlikely(csk_flag(sk, CSK_UPDATE_RCV_WND))) if (unlikely(csk_flag(sk, CSK_UPDATE_RCV_WND)))
@ -1616,7 +1616,7 @@ static int chtls_pt_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
* Peek at data in a socket's receive buffer. * Peek at data in a socket's receive buffer.
*/ */
static int peekmsg(struct sock *sk, struct msghdr *msg, 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); struct tcp_sock *tp = tcp_sk(sk);
u32 peek_seq, offset; u32 peek_seq, offset;
@ -1626,7 +1626,7 @@ static int peekmsg(struct sock *sk, struct msghdr *msg,
long timeo; long timeo;
lock_sock(sk); lock_sock(sk);
timeo = sock_rcvtimeo(sk, nonblock); timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
peek_seq = tp->copied_seq; peek_seq = tp->copied_seq;
do { do {
@ -1737,7 +1737,7 @@ static int peekmsg(struct sock *sk, struct msghdr *msg,
} }
int chtls_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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 tcp_sock *tp = tcp_sk(sk);
struct chtls_sock *csk; struct chtls_sock *csk;
@ -1750,25 +1750,23 @@ int chtls_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
buffers_freed = 0; buffers_freed = 0;
if (unlikely(flags & MSG_OOB)) if (unlikely(flags & MSG_OOB))
return tcp_prot.recvmsg(sk, msg, len, nonblock, flags, return tcp_prot.recvmsg(sk, msg, len, flags, addr_len);
addr_len);
if (unlikely(flags & MSG_PEEK)) if (unlikely(flags & MSG_PEEK))
return peekmsg(sk, msg, len, nonblock, flags); return peekmsg(sk, msg, len, flags);
if (sk_can_busy_loop(sk) && if (sk_can_busy_loop(sk) &&
skb_queue_empty_lockless(&sk->sk_receive_queue) && skb_queue_empty_lockless(&sk->sk_receive_queue) &&
sk->sk_state == TCP_ESTABLISHED) sk->sk_state == TCP_ESTABLISHED)
sk_busy_loop(sk, nonblock); sk_busy_loop(sk, flags & MSG_DONTWAIT);
lock_sock(sk); lock_sock(sk);
csk = rcu_dereference_sk_user_data(sk); csk = rcu_dereference_sk_user_data(sk);
if (is_tls_rx(csk)) if (is_tls_rx(csk))
return chtls_pt_recvmsg(sk, msg, len, nonblock, return chtls_pt_recvmsg(sk, msg, len, flags, addr_len);
flags, addr_len);
timeo = sock_rcvtimeo(sk, nonblock); timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
target = sock_rcvlowat(sk, flags & MSG_WAITALL, len); target = sock_rcvlowat(sk, flags & MSG_WAITALL, len);
if (unlikely(csk_flag(sk, CSK_UPDATE_RCV_WND))) if (unlikely(csk_flag(sk, CSK_UPDATE_RCV_WND)))

2
include/net/ping.h
View File

@ -71,7 +71,7 @@ void ping_err(struct sk_buff *skb, int offset, u32 info);
int ping_getfrag(void *from, char *to, int offset, int fraglen, int odd, int ping_getfrag(void *from, char *to, int offset, int fraglen, int odd,
struct sk_buff *); 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 flags, int *addr_len);
int ping_common_sendmsg(int family, struct msghdr *msg, size_t len, int ping_common_sendmsg(int family, struct msghdr *msg, size_t len,
void *user_icmph, size_t icmph_len); void *user_icmph, size_t icmph_len);

2
include/net/sctp/sctp.h
View File

@ -103,7 +103,7 @@ void sctp_copy_sock(struct sock *newsk, struct sock *sk,
struct sctp_association *asoc); struct sctp_association *asoc);
extern struct percpu_counter sctp_sockets_allocated; extern struct percpu_counter sctp_sockets_allocated;
int sctp_asconf_mgmt(struct sctp_sock *, struct sctp_sockaddr_entry *); 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 *); 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_start(struct rhashtable_iter *iter);

3
include/net/sock.h
View File

@ -1202,8 +1202,7 @@ struct proto {
int (*sendmsg)(struct sock *sk, struct msghdr *msg, int (*sendmsg)(struct sock *sk, struct msghdr *msg,
size_t len); size_t len);
int (*recvmsg)(struct sock *sk, struct msghdr *msg, int (*recvmsg)(struct sock *sk, struct msghdr *msg,
size_t len, int noblock, int flags, size_t len, int flags, int *addr_len);
int *addr_len);
int (*sendpage)(struct sock *sk, struct page *page, int (*sendpage)(struct sock *sk, struct page *page,
int offset, size_t size, int flags); int offset, size_t size, int flags);
int (*bind)(struct sock *sk, int (*bind)(struct sock *sk,

2
include/net/tcp.h
View File

@ -407,7 +407,7 @@ int tcp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval,
unsigned int optlen); unsigned int optlen);
void tcp_set_keepalive(struct sock *sk, int val); void tcp_set_keepalive(struct sock *sk, int val);
void tcp_syn_ack_timeout(const struct request_sock *req); 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 flags, int *addr_len);
int tcp_set_rcvlowat(struct sock *sk, int val); int tcp_set_rcvlowat(struct sock *sk, int val);
int tcp_set_window_clamp(struct sock *sk, int val); int tcp_set_window_clamp(struct sock *sk, int val);

2
include/net/tls.h
View File

@ -371,7 +371,7 @@ void tls_sw_free_resources_rx(struct sock *sk);
void tls_sw_release_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); 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 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); bool tls_sw_sock_is_readable(struct sock *sk);
ssize_t tls_sw_splice_read(struct socket *sock, loff_t *ppos, ssize_t tls_sw_splice_read(struct socket *sock, loff_t *ppos,
struct pipe_inode_info *pipe, struct pipe_inode_info *pipe,

8
include/net/udp.h
View File

@ -250,14 +250,14 @@ void udp_destruct_sock(struct sock *sk);
void skb_consume_udp(struct sock *sk, struct sk_buff *skb, int len); 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); int __udp_enqueue_schedule_skb(struct sock *sk, struct sk_buff *skb);
void udp_skb_destructor(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, struct sk_buff *__skb_recv_udp(struct sock *sk, unsigned int flags, int *off,
int noblock, int *off, int *err); int *err);
static inline struct sk_buff *skb_recv_udp(struct sock *sk, unsigned int flags, static inline struct sk_buff *skb_recv_udp(struct sock *sk, unsigned int flags,
int noblock, int *err) int *err)
{ {
int off = 0; 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); int udp_v4_early_demux(struct sk_buff *skb);

3
net/core/sock.c
View File

@ -3506,8 +3506,7 @@ int sock_common_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
int addr_len = 0; int addr_len = 0;
int err; int err;
err = sk->sk_prot->recvmsg(sk, msg, size, flags & MSG_DONTWAIT, err = sk->sk_prot->recvmsg(sk, msg, size, flags, &addr_len);
flags & ~MSG_DONTWAIT, &addr_len);
if (err >= 0) if (err >= 0)
msg->msg_namelen = addr_len; msg->msg_namelen = addr_len;
return err; return err;

4
net/dccp/dccp.h
View File

@ -293,8 +293,8 @@ int dccp_setsockopt(struct sock *sk, int level, int optname,
sockptr_t optval, unsigned int optlen); sockptr_t optval, unsigned int optlen);
int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg); 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_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 dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int flags,
int flags, int *addr_len); int *addr_len);
void dccp_shutdown(struct sock *sk, int how); void dccp_shutdown(struct sock *sk, int how);
int inet_dccp_listen(struct socket *sock, int backlog); int inet_dccp_listen(struct socket *sock, int backlog);
__poll_t dccp_poll(struct file *file, struct socket *sock, __poll_t dccp_poll(struct file *file, struct socket *sock,

6
net/dccp/proto.c
View File

@ -791,8 +791,8 @@ int dccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
EXPORT_SYMBOL_GPL(dccp_sendmsg); EXPORT_SYMBOL_GPL(dccp_sendmsg);
int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock, int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int flags,
int flags, int *addr_len) int *addr_len)
{ {
const struct dccp_hdr *dh; const struct dccp_hdr *dh;
long timeo; long timeo;
@ -804,7 +804,7 @@ int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
goto out; goto out;
} }
timeo = sock_rcvtimeo(sk, nonblock); timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
do { do {
struct sk_buff *skb = skb_peek(&sk->sk_receive_queue); struct sk_buff *skb = skb_peek(&sk->sk_receive_queue);

6
net/ieee802154/socket.c
View File

@ -308,13 +308,12 @@ static int raw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
} }
static int raw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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; size_t copied = 0;
int err = -EOPNOTSUPP; int err = -EOPNOTSUPP;
struct sk_buff *skb; struct sk_buff *skb;
flags |= (noblock ? MSG_DONTWAIT : 0);
skb = skb_recv_datagram(sk, flags, &err); skb = skb_recv_datagram(sk, flags, &err);
if (!skb) if (!skb)
goto out; goto out;
@ -696,7 +695,7 @@ static int dgram_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
} }
static int dgram_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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; size_t copied = 0;
int err = -EOPNOTSUPP; int err = -EOPNOTSUPP;
@ -704,7 +703,6 @@ static int dgram_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
struct dgram_sock *ro = dgram_sk(sk); struct dgram_sock *ro = dgram_sk(sk);
DECLARE_SOCKADDR(struct sockaddr_ieee802154 *, saddr, msg->msg_name); DECLARE_SOCKADDR(struct sockaddr_ieee802154 *, saddr, msg->msg_name);
flags |= (noblock ? MSG_DONTWAIT : 0);
skb = skb_recv_datagram(sk, flags, &err); skb = skb_recv_datagram(sk, flags, &err);
if (!skb) if (!skb)
goto out; goto out;

5
net/ipv4/af_inet.c
View File

@ -836,7 +836,7 @@ ssize_t inet_sendpage(struct socket *sock, struct page *page, int offset,
EXPORT_SYMBOL(inet_sendpage); EXPORT_SYMBOL(inet_sendpage);
INDIRECT_CALLABLE_DECLARE(int udp_recvmsg(struct sock *, struct msghdr *, 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 inet_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
int flags) int flags)
{ {
@ -848,8 +848,7 @@ int inet_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
sock_rps_record_flow(sk); sock_rps_record_flow(sk);
err = INDIRECT_CALL_2(sk->sk_prot->recvmsg, tcp_recvmsg, udp_recvmsg, err = INDIRECT_CALL_2(sk->sk_prot->recvmsg, tcp_recvmsg, udp_recvmsg,
sk, msg, size, flags & MSG_DONTWAIT, sk, msg, size, flags, &addr_len);
flags & ~MSG_DONTWAIT, &addr_len);
if (err >= 0) if (err >= 0)
msg->msg_namelen = addr_len; msg->msg_namelen = addr_len;
return err; return err;

5
net/ipv4/ping.c
View File

@ -844,8 +844,8 @@ static int ping_v4_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
goto out; 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 flags, int *addr_len) int *addr_len)
{ {
struct inet_sock *isk = inet_sk(sk); struct inet_sock *isk = inet_sk(sk);
int family = sk->sk_family; int family = sk->sk_family;
@ -861,7 +861,6 @@ int ping_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
if (flags & MSG_ERRQUEUE) if (flags & MSG_ERRQUEUE)
return inet_recv_error(sk, msg, len, addr_len); return inet_recv_error(sk, msg, len, addr_len);
flags |= (noblock ? MSG_DONTWAIT : 0);
skb = skb_recv_datagram(sk, flags, &err); skb = skb_recv_datagram(sk, flags, &err);
if (!skb) if (!skb)
goto out; goto out;

3
net/ipv4/raw.c
View File

@ -753,7 +753,7 @@ static int raw_bind(struct sock *sk, struct sockaddr *uaddr, int addr_len)
*/ */
static int raw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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); struct inet_sock *inet = inet_sk(sk);
size_t copied = 0; size_t copied = 0;
@ -769,7 +769,6 @@ static int raw_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
goto out; goto out;
} }
flags |= (noblock ? MSG_DONTWAIT : 0);
skb = skb_recv_datagram(sk, flags, &err); skb = skb_recv_datagram(sk, flags, &err);
if (!skb) if (!skb)
goto out; goto out;

19
net/ipv4/tcp.c
View File

@ -1877,8 +1877,7 @@ static void tcp_zerocopy_set_hint_for_skb(struct sock *sk,
} }
static int tcp_recvmsg_locked(struct sock *sk, struct msghdr *msg, size_t len, 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,
struct scm_timestamping_internal *tss,
int *cmsg_flags); int *cmsg_flags);
static int receive_fallback_to_copy(struct sock *sk, static int receive_fallback_to_copy(struct sock *sk,
struct tcp_zerocopy_receive *zc, int inq, struct tcp_zerocopy_receive *zc, int inq,
@ -1900,7 +1899,7 @@ static int receive_fallback_to_copy(struct sock *sk,
if (err) if (err)
return 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); tss, &zc->msg_flags);
if (err < 0) if (err < 0)
return err; return err;
@ -2316,8 +2315,7 @@ static int tcp_inq_hint(struct sock *sk)
*/ */
static int tcp_recvmsg_locked(struct sock *sk, struct msghdr *msg, size_t len, 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,
struct scm_timestamping_internal *tss,
int *cmsg_flags) int *cmsg_flags)
{ {
struct tcp_sock *tp = tcp_sk(sk); struct tcp_sock *tp = tcp_sk(sk);
@ -2337,7 +2335,7 @@ static int tcp_recvmsg_locked(struct sock *sk, struct msghdr *msg, size_t len,
if (tp->recvmsg_inq) if (tp->recvmsg_inq)
*cmsg_flags = TCP_CMSG_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. */ /* Urgent data needs to be handled specially. */
if (flags & MSG_OOB) if (flags & MSG_OOB)
@ -2556,8 +2554,8 @@ static int tcp_recvmsg_locked(struct sock *sk, struct msghdr *msg, size_t len,
goto out; 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 flags, int *addr_len) int *addr_len)
{ {
int cmsg_flags = 0, ret, inq; int cmsg_flags = 0, ret, inq;
struct scm_timestamping_internal tss; struct scm_timestamping_internal tss;
@ -2568,11 +2566,10 @@ int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
if (sk_can_busy_loop(sk) && if (sk_can_busy_loop(sk) &&
skb_queue_empty_lockless(&sk->sk_receive_queue) && skb_queue_empty_lockless(&sk->sk_receive_queue) &&
sk->sk_state == TCP_ESTABLISHED) sk->sk_state == TCP_ESTABLISHED)
sk_busy_loop(sk, nonblock); sk_busy_loop(sk, flags & MSG_DONTWAIT);
lock_sock(sk); lock_sock(sk);
ret = tcp_recvmsg_locked(sk, msg, len, nonblock, flags, &tss, ret = tcp_recvmsg_locked(sk, msg, len, flags, &tss, &cmsg_flags);
&cmsg_flags);
release_sock(sk); release_sock(sk);
sk_defer_free_flush(sk); sk_defer_free_flush(sk);

15
net/ipv4/tcp_bpf.c
View File

@ -174,7 +174,6 @@ static int tcp_msg_wait_data(struct sock *sk, struct sk_psock *psock,
static int tcp_bpf_recvmsg_parser(struct sock *sk, static int tcp_bpf_recvmsg_parser(struct sock *sk,
struct msghdr *msg, struct msghdr *msg,
size_t len, size_t len,
int nonblock,
int flags, int flags,
int *addr_len) int *addr_len)
{ {
@ -186,7 +185,7 @@ static int tcp_bpf_recvmsg_parser(struct sock *sk,
psock = sk_psock_get(sk); psock = sk_psock_get(sk);
if (unlikely(!psock)) 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); lock_sock(sk);
msg_bytes_ready: msg_bytes_ready:
@ -211,7 +210,7 @@ static int tcp_bpf_recvmsg_parser(struct sock *sk,
goto out; goto out;
} }
timeo = sock_rcvtimeo(sk, nonblock); timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
if (!timeo) { if (!timeo) {
copied = -EAGAIN; copied = -EAGAIN;
goto out; goto out;
@ -234,7 +233,7 @@ static int tcp_bpf_recvmsg_parser(struct sock *sk,
} }
static int tcp_bpf_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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; struct sk_psock *psock;
int copied, ret; int copied, ret;
@ -244,11 +243,11 @@ static int tcp_bpf_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
psock = sk_psock_get(sk); psock = sk_psock_get(sk);
if (unlikely(!psock)) 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) && if (!skb_queue_empty(&sk->sk_receive_queue) &&
sk_psock_queue_empty(psock)) { sk_psock_queue_empty(psock)) {
sk_psock_put(sk, 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); lock_sock(sk);
msg_bytes_ready: msg_bytes_ready:
@ -257,14 +256,14 @@ static int tcp_bpf_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
long timeo; long timeo;
int data; int data;
timeo = sock_rcvtimeo(sk, nonblock); timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
data = tcp_msg_wait_data(sk, psock, timeo); data = tcp_msg_wait_data(sk, psock, timeo);
if (data) { if (data) {
if (!sk_psock_queue_empty(psock)) if (!sk_psock_queue_empty(psock))
goto msg_bytes_ready; goto msg_bytes_ready;
release_sock(sk); release_sock(sk);
sk_psock_put(sk, 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);
} }
copied = -EAGAIN; copied = -EAGAIN;
} }

11
net/ipv4/udp.c
View File

@ -1726,7 +1726,7 @@ int udp_ioctl(struct sock *sk, int cmd, unsigned long arg)
EXPORT_SYMBOL(udp_ioctl); EXPORT_SYMBOL(udp_ioctl);
struct sk_buff *__skb_recv_udp(struct sock *sk, unsigned int flags, 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 *sk_queue = &sk->sk_receive_queue;
struct sk_buff_head *queue; struct sk_buff_head *queue;
@ -1735,7 +1735,6 @@ struct sk_buff *__skb_recv_udp(struct sock *sk, unsigned int flags,
int error; int error;
queue = &udp_sk(sk)->reader_queue; queue = &udp_sk(sk)->reader_queue;
flags |= noblock ? MSG_DONTWAIT : 0;
timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT); timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
do { do {
struct sk_buff *skb; struct sk_buff *skb;
@ -1805,7 +1804,7 @@ int udp_read_sock(struct sock *sk, read_descriptor_t *desc,
struct sk_buff *skb; struct sk_buff *skb;
int err, used; int err, used;
skb = skb_recv_udp(sk, 0, 1, &err); skb = skb_recv_udp(sk, MSG_DONTWAIT, &err);
if (!skb) if (!skb)
return err; return err;
@ -1843,8 +1842,8 @@ EXPORT_SYMBOL(udp_read_sock);
* return it, otherwise we block. * 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 flags, int *addr_len) int *addr_len)
{ {
struct inet_sock *inet = inet_sk(sk); struct inet_sock *inet = inet_sk(sk);
DECLARE_SOCKADDR(struct sockaddr_in *, sin, msg->msg_name); DECLARE_SOCKADDR(struct sockaddr_in *, sin, msg->msg_name);
@ -1859,7 +1858,7 @@ int udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock,
try_again: try_again:
off = sk_peek_offset(sk, flags); 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) if (!skb)
return err; return err;

17
net/ipv4/udp_bpf.c
View File

@ -11,14 +11,13 @@
static struct proto *udpv6_prot_saved __read_mostly; static struct proto *udpv6_prot_saved __read_mostly;
static int sk_udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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 IS_ENABLED(CONFIG_IPV6)
if (sk->sk_family == AF_INET6) 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);
addr_len);
#endif #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) static bool udp_sk_has_data(struct sock *sk)
@ -61,7 +60,7 @@ static int udp_msg_wait_data(struct sock *sk, struct sk_psock *psock,
} }
static int udp_bpf_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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; struct sk_psock *psock;
int copied, ret; int copied, ret;
@ -71,10 +70,10 @@ static int udp_bpf_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
psock = sk_psock_get(sk); psock = sk_psock_get(sk);
if (unlikely(!psock)) 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)) { 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; goto out;
} }
@ -84,12 +83,12 @@ static int udp_bpf_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
long timeo; long timeo;
int data; int data;
timeo = sock_rcvtimeo(sk, nonblock); timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
data = udp_msg_wait_data(sk, psock, timeo); data = udp_msg_wait_data(sk, psock, timeo);
if (data) { if (data) {
if (psock_has_data(psock)) if (psock_has_data(psock))
goto msg_bytes_ready; 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; goto out;
} }
copied = -EAGAIN; copied = -EAGAIN;

4
net/ipv4/udp_impl.h
View File

@ -17,8 +17,8 @@ int udp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval,
int udp_getsockopt(struct sock *sk, int level, int optname, int udp_getsockopt(struct sock *sk, int level, int optname,
char __user *optval, int __user *optlen); 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 flags, int *addr_len); int *addr_len);
int udp_sendpage(struct sock *sk, struct page *page, int offset, size_t size, int udp_sendpage(struct sock *sk, struct page *page, int offset, size_t size,
int flags); int flags);
void udp_destroy_sock(struct sock *sk); void udp_destroy_sock(struct sock *sk);

5
net/ipv6/af_inet6.c
View File

@ -654,7 +654,7 @@ int inet6_sendmsg(struct socket *sock, struct msghdr *msg, size_t size)
} }
INDIRECT_CALLABLE_DECLARE(int udpv6_recvmsg(struct sock *, struct msghdr *, 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 inet6_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
int flags) int flags)
{ {
@ -669,8 +669,7 @@ int inet6_recvmsg(struct socket *sock, struct msghdr *msg, size_t size,
/* IPV6_ADDRFORM can change sk->sk_prot under us. */ /* IPV6_ADDRFORM can change sk->sk_prot under us. */
prot = READ_ONCE(sk->sk_prot); prot = READ_ONCE(sk->sk_prot);
err = INDIRECT_CALL_2(prot->recvmsg, tcp_recvmsg, udpv6_recvmsg, err = INDIRECT_CALL_2(prot->recvmsg, tcp_recvmsg, udpv6_recvmsg,
sk, msg, size, flags & MSG_DONTWAIT, sk, msg, size, flags, &addr_len);
flags & ~MSG_DONTWAIT, &addr_len);
if (err >= 0) if (err >= 0)
msg->msg_namelen = addr_len; msg->msg_namelen = addr_len;
return err; return err;

3
net/ipv6/raw.c
View File

@ -460,7 +460,7 @@ int rawv6_rcv(struct sock *sk, struct sk_buff *skb)
*/ */
static int rawv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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); struct ipv6_pinfo *np = inet6_sk(sk);
DECLARE_SOCKADDR(struct sockaddr_in6 *, sin6, msg->msg_name); DECLARE_SOCKADDR(struct sockaddr_in6 *, sin6, msg->msg_name);
@ -477,7 +477,6 @@ static int rawv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
if (np->rxpmtu && np->rxopt.bits.rxpmtu) if (np->rxpmtu && np->rxopt.bits.rxpmtu)
return ipv6_recv_rxpmtu(sk, msg, len, addr_len); return ipv6_recv_rxpmtu(sk, msg, len, addr_len);
flags |= (noblock ? MSG_DONTWAIT : 0);
skb = skb_recv_datagram(sk, flags, &err); skb = skb_recv_datagram(sk, flags, &err);
if (!skb) if (!skb)
goto out; goto out;

4
net/ipv6/udp.c
View File

@ -322,7 +322,7 @@ static int udp6_skb_len(struct sk_buff *skb)
*/ */
int udpv6_recvmsg(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 flags, int *addr_len)
{ {
struct ipv6_pinfo *np = inet6_sk(sk); struct ipv6_pinfo *np = inet6_sk(sk);
struct inet_sock *inet = inet_sk(sk); struct inet_sock *inet = inet_sk(sk);
@ -342,7 +342,7 @@ int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
try_again: try_again:
off = sk_peek_offset(sk, flags); 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) if (!skb)
return err; return err;

4
net/ipv6/udp_impl.h
View File

@ -20,8 +20,8 @@ int udpv6_getsockopt(struct sock *sk, int level, int optname,
int udpv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, int udpv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval,
unsigned int optlen); unsigned int optlen);
int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len); 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 flags, int *addr_len); int *addr_len);
void udpv6_destroy_sock(struct sock *sk); void udpv6_destroy_sock(struct sock *sk);
#ifdef CONFIG_PROC_FS #ifdef CONFIG_PROC_FS

3
net/l2tp/l2tp_ip.c
View File

@ -515,7 +515,7 @@ static int l2tp_ip_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
} }
static int l2tp_ip_recvmsg(struct sock *sk, struct msghdr *msg, 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); struct inet_sock *inet = inet_sk(sk);
size_t copied = 0; size_t copied = 0;
@ -526,7 +526,6 @@ static int l2tp_ip_recvmsg(struct sock *sk, struct msghdr *msg,
if (flags & MSG_OOB) if (flags & MSG_OOB)
goto out; goto out;
flags |= (noblock ? MSG_DONTWAIT : 0);
skb = skb_recv_datagram(sk, flags, &err); skb = skb_recv_datagram(sk, flags, &err);
if (!skb) if (!skb)
goto out; goto out;

3
net/l2tp/l2tp_ip6.c
View File

@ -657,7 +657,7 @@ static int l2tp_ip6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
} }
static int l2tp_ip6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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); struct ipv6_pinfo *np = inet6_sk(sk);
DECLARE_SOCKADDR(struct sockaddr_l2tpip6 *, lsa, msg->msg_name); DECLARE_SOCKADDR(struct sockaddr_l2tpip6 *, lsa, msg->msg_name);
@ -671,7 +671,6 @@ static int l2tp_ip6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
if (flags & MSG_ERRQUEUE) if (flags & MSG_ERRQUEUE)
return ipv6_recv_error(sk, msg, len, addr_len); return ipv6_recv_error(sk, msg, len, addr_len);
flags |= (noblock ? MSG_DONTWAIT : 0);
skb = skb_recv_datagram(sk, flags, &err); skb = skb_recv_datagram(sk, flags, &err);
if (!skb) if (!skb)
goto out; goto out;

4
net/mptcp/protocol.c
View File

@ -2012,7 +2012,7 @@ static unsigned int mptcp_inq_hint(const struct sock *sk)
} }
static int mptcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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 mptcp_sock *msk = mptcp_sk(sk);
struct scm_timestamping_internal tss; struct scm_timestamping_internal tss;
@ -2030,7 +2030,7 @@ static int mptcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
goto out_err; goto out_err;
} }
timeo = sock_rcvtimeo(sk, nonblock); timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
len = min_t(size_t, len, INT_MAX); len = min_t(size_t, len, INT_MAX);
target = sock_rcvlowat(sk, flags & MSG_WAITALL, len); target = sock_rcvlowat(sk, flags & MSG_WAITALL, len);

3
net/phonet/datagram.c
View File

@ -112,7 +112,7 @@ static int pn_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
} }
static int pn_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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 sk_buff *skb = NULL;
struct sockaddr_pn sa; struct sockaddr_pn sa;
@ -123,7 +123,6 @@ static int pn_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
MSG_CMSG_COMPAT)) MSG_CMSG_COMPAT))
goto out_nofree; goto out_nofree;
flags |= (noblock ? MSG_DONTWAIT : 0);
skb = skb_recv_datagram(sk, flags, &rval); skb = skb_recv_datagram(sk, flags, &rval);
if (skb == NULL) if (skb == NULL)
goto out_nofree; goto out_nofree;

3
net/phonet/pep.c
View File

@ -1239,7 +1239,7 @@ struct sk_buff *pep_read(struct sock *sk)
} }
static int pep_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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; struct sk_buff *skb;
int err; int err;
@ -1268,7 +1268,6 @@ static int pep_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
return -EINVAL; return -EINVAL;
} }
flags |= (noblock ? MSG_DONTWAIT : 0);
skb = skb_recv_datagram(sk, flags, &err); skb = skb_recv_datagram(sk, flags, &err);
lock_sock(sk); lock_sock(sk);
if (skb == NULL) { if (skb == NULL) {

16
net/sctp/socket.c
View File

@ -2084,7 +2084,7 @@ static int sctp_skb_pull(struct sk_buff *skb, int len)
* 5 for complete description of the flags. * 5 for complete description of the flags.
*/ */
static int sctp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, 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_ulpevent *event = NULL;
struct sctp_sock *sp = sctp_sk(sk); struct sctp_sock *sp = sctp_sk(sk);
@ -2093,9 +2093,8 @@ static int sctp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
int err = 0; int err = 0;
int skb_len; int skb_len;
pr_debug("%s: sk:%p, msghdr:%p, len:%zd, noblock:%d, flags:0x%x, " pr_debug("%s: sk:%p, msghdr:%p, len:%zd, flags:0x%x, addr_len:%p)\n",
"addr_len:%p)\n", __func__, sk, msg, len, noblock, flags, __func__, sk, msg, len, flags, addr_len);
addr_len);
lock_sock(sk); lock_sock(sk);
@ -2105,7 +2104,7 @@ static int sctp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
goto out; goto out;
} }
skb = sctp_skb_recv_datagram(sk, flags, noblock, &err); skb = sctp_skb_recv_datagram(sk, flags, &err);
if (!skb) if (!skb)
goto out; goto out;
@ -8978,14 +8977,13 @@ static int sctp_wait_for_packet(struct sock *sk, int *err, long *timeo_p)
* Note: This is pretty much the same routine as in core/datagram.c * Note: This is pretty much the same routine as in core/datagram.c
* with a few changes to make lksctp work. * with a few changes to make lksctp work.
*/ */
struct sk_buff *sctp_skb_recv_datagram(struct sock *sk, int flags, struct sk_buff *sctp_skb_recv_datagram(struct sock *sk, int flags, int *err)
int noblock, int *err)
{ {
int error; int error;
struct sk_buff *skb; struct sk_buff *skb;
long timeo; long timeo;
timeo = sock_rcvtimeo(sk, noblock); timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
pr_debug("%s: timeo:%ld, max:%ld\n", __func__, timeo, pr_debug("%s: timeo:%ld, max:%ld\n", __func__, timeo,
MAX_SCHEDULE_TIMEOUT); MAX_SCHEDULE_TIMEOUT);
@ -9018,7 +9016,7 @@ struct sk_buff *sctp_skb_recv_datagram(struct sock *sk, int flags,
break; break;
if (sk_can_busy_loop(sk)) { 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)) if (!skb_queue_empty_lockless(&sk->sk_receive_queue))
continue; continue;

2
net/sctp/ulpevent.c
View File

@ -1063,7 +1063,7 @@ void sctp_ulpevent_read_nxtinfo(const struct sctp_ulpevent *event,
struct sk_buff *skb; struct sk_buff *skb;
int err; 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) { if (skb != NULL) {
__sctp_ulpevent_read_nxtinfo(sctp_skb2event(skb), __sctp_ulpevent_read_nxtinfo(sctp_skb2event(skb),
msghdr, skb); msghdr, skb);

2
net/sunrpc/svcsock.c
View File

@ -464,7 +464,7 @@ static int svc_udp_recvfrom(struct svc_rqst *rqstp)
0, 0, MSG_PEEK | MSG_DONTWAIT); 0, 0, MSG_PEEK | MSG_DONTWAIT);
if (err < 0) if (err < 0)
goto out_recv_err; 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) if (!skb)
goto out_recv_err; goto out_recv_err;

2
net/sunrpc/xprtsock.c
View File

@ -1337,7 +1337,7 @@ static void xs_udp_data_receive(struct sock_xprt *transport)
if (sk == NULL) if (sk == NULL)
goto out; goto out;
for (;;) { for (;;) {
skb = skb_recv_udp(sk, 0, 1, &err); skb = skb_recv_udp(sk, MSG_DONTWAIT, &err);
if (skb == NULL) if (skb == NULL)
break; break;
xs_udp_data_read_skb(&transport->xprt, sk, skb); xs_udp_data_read_skb(&transport->xprt, sk, skb);

3
net/tls/tls_sw.c
View File

@ -1722,7 +1722,6 @@ static int process_rx_list(struct tls_sw_context_rx *ctx,
int tls_sw_recvmsg(struct sock *sk, int tls_sw_recvmsg(struct sock *sk,
struct msghdr *msg, struct msghdr *msg,
size_t len, size_t len,
int nonblock,
int flags, int flags,
int *addr_len) int *addr_len)
{ {
@ -1744,8 +1743,6 @@ int tls_sw_recvmsg(struct sock *sk,
bool bpf_strp_enabled; bool bpf_strp_enabled;
bool zc_capable; bool zc_capable;
flags |= nonblock;
if (unlikely(flags & MSG_ERRQUEUE)) if (unlikely(flags & MSG_ERRQUEUE))
return sock_recv_errqueue(sk, msg, len, SOL_IP, IP_RECVERR); return sock_recv_errqueue(sk, msg, len, SOL_IP, IP_RECVERR);

6
net/unix/af_unix.c
View File

@ -2484,8 +2484,7 @@ static int unix_dgram_recvmsg(struct socket *sock, struct msghdr *msg, size_t si
const struct proto *prot = READ_ONCE(sk->sk_prot); const struct proto *prot = READ_ONCE(sk->sk_prot);
if (prot != &unix_dgram_proto) if (prot != &unix_dgram_proto)
return prot->recvmsg(sk, msg, size, flags & MSG_DONTWAIT, return prot->recvmsg(sk, msg, size, flags, NULL);
flags & ~MSG_DONTWAIT, NULL);
#endif #endif
return __unix_dgram_recvmsg(sk, msg, size, flags); return __unix_dgram_recvmsg(sk, msg, size, flags);
} }
@ -2917,8 +2916,7 @@ static int unix_stream_recvmsg(struct socket *sock, struct msghdr *msg,
const struct proto *prot = READ_ONCE(sk->sk_prot); const struct proto *prot = READ_ONCE(sk->sk_prot);
if (prot != &unix_stream_proto) if (prot != &unix_stream_proto)
return prot->recvmsg(sk, msg, size, flags & MSG_DONTWAIT, return prot->recvmsg(sk, msg, size, flags, NULL);
flags & ~MSG_DONTWAIT, NULL);
#endif #endif
return unix_stream_read_generic(&state, true); return unix_stream_read_generic(&state, true);
} }

5
net/unix/unix_bpf.c
View File

@ -48,8 +48,7 @@ static int __unix_recvmsg(struct sock *sk, struct msghdr *msg,
} }
static int unix_bpf_recvmsg(struct sock *sk, struct msghdr *msg, static int unix_bpf_recvmsg(struct sock *sk, struct msghdr *msg,
size_t len, int nonblock, int flags, size_t len, int flags, int *addr_len)
int *addr_len)
{ {
struct unix_sock *u = unix_sk(sk); struct unix_sock *u = unix_sk(sk);
struct sk_psock *psock; struct sk_psock *psock;
@ -73,7 +72,7 @@ static int unix_bpf_recvmsg(struct sock *sk, struct msghdr *msg,
long timeo; long timeo;
int data; int data;
timeo = sock_rcvtimeo(sk, nonblock); timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
data = unix_msg_wait_data(sk, psock, timeo); data = unix_msg_wait_data(sk, psock, timeo);
if (data) { if (data) {
if (!sk_psock_queue_empty(psock)) if (!sk_psock_queue_empty(psock))

4
net/xfrm/espintcp.c
View File

@ -131,7 +131,7 @@ static int espintcp_parse(struct strparser *strp, struct sk_buff *skb)
} }
static int espintcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t 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 espintcp_ctx *ctx = espintcp_getctx(sk);
struct sk_buff *skb; struct sk_buff *skb;
@ -139,8 +139,6 @@ static int espintcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len,
int copied; int copied;
int off = 0; int off = 0;
flags |= nonblock ? MSG_DONTWAIT : 0;
skb = __skb_recv_datagram(sk, &ctx->ike_queue, flags, &off, &err); skb = __skb_recv_datagram(sk, &ctx->ike_queue, flags, &off, &err);
if (!skb) { if (!skb) {
if (err == -EAGAIN && sk->sk_shutdown & RCV_SHUTDOWN) if (err == -EAGAIN && sk->sk_shutdown & RCV_SHUTDOWN)