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net: remove noblock parameter from recvmsg() entities

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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
Download patch file Download diff file Expand all files Collapse all files

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);
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);
}
@ -2917,8 +2916,7 @@ static int unix_stream_recvmsg(struct socket *sock, struct msghdr *msg,
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);
}