diff options
| author |   Oliver Hartkopp <socketcan@hartkopp.net> | 2022-04-11 14:49:55 +0200 |
|---|---|---|
| committer |   Paolo Abeni <pabeni@redhat.com> | 2022-04-12 15:00:25 +0200 |
| commit | ec095263a965720e1ca39db1d9c5cd47846c789b (patch) | |
| tree | f88e25dfa22ee4da19c1cba18eac627aec42aebb /net/ipv4/udp.c | |
| parent | net: usb: qmi_wwan: add Telit 0x1057 composition (diff) | |
| download | linux-dev-ec095263a965720e1ca39db1d9c5cd47846c789b.tar.xz linux-dev-ec095263a965720e1ca39db1d9c5cd47846c789b.zip | |
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@hartkopp.net>
Link: https://lore.kernel.org/r/20220411124955.154876-1-socketcan@hartkopp.net
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'net/ipv4/udp.c')
| -rw-r--r-- | net/ipv4/udp.c | 11 |
1 files changed, 5 insertions, 6 deletions
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 @@ -1726,7 +1726,7 @@ int udp_ioctl(struct sock *sk, int cmd, unsigned long arg) 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; @@ -1735,7 +1735,6 @@ struct sk_buff *__skb_recv_udp(struct sock *sk, unsigned int flags, 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; @@ -1805,7 +1804,7 @@ int udp_read_sock(struct sock *sk, read_descriptor_t *desc, 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; @@ -1843,8 +1842,8 @@ EXPORT_SYMBOL(udp_read_sock); * 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); @@ -1859,7 +1858,7 @@ int udp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock, 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; |