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| author | Oliver Hartkopp <socketcan@hartkopp.net> | 2022-04-04 18:30:22 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-04-06 13:45:26 +0100 |
| commit | f4b41f062c424209e3939a81e6da022e049a45f2 (patch) | |
| tree | cd8e8a16fb7cc256ad2a0f4136b169bce3d40e47 /net/iucv | |
| parent | 0b5c21bbc01e92745ca1ca4f6fd87d878fa3ea5e (diff) | |
| download | linux-f4b41f062c424209e3939a81e6da022e049a45f2.tar.gz linux-f4b41f062c424209e3939a81e6da022e049a45f2.tar.bz2 linux-f4b41f062c424209e3939a81e6da022e049a45f2.zip | |
net: remove noblock parameter from skb_recv_datagram()
skb_recv_datagram() has two parameters 'flags' and 'noblock' that are
merged inside skb_recv_datagram() by 'flags | (noblock ? MSG_DONTWAIT : 0)'
As 'flags' may contain MSG_DONTWAIT as value most callers split the 'flags'
into 'flags' and 'noblock' with finally obsolete bit operations like this:
skb_recv_datagram(sk, flags & ~MSG_DONTWAIT, flags & MSG_DONTWAIT, &rc);
And this is not even done consistently with the 'flags' parameter.
This patch removes the obsolete and costly splitting into two parameters
and only performs bit operations when really needed on the caller side.
One missing conversion thankfully reported by kernel test robot. I missed
to enable kunit tests to build the mctp code.
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Oliver Hartkopp <socketcan@hartkopp.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/iucv')
| -rw-r--r-- | net/iucv/af_iucv.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index a1760add5bf1..a0385ddbffcf 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -1223,7 +1223,6 @@ static void iucv_process_message_q(struct sock *sk) static int iucv_sock_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, int flags) { - int noblock = flags & MSG_DONTWAIT; struct sock *sk = sock->sk; struct iucv_sock *iucv = iucv_sk(sk); unsigned int copied, rlen; @@ -1242,7 +1241,7 @@ static int iucv_sock_recvmsg(struct socket *sock, struct msghdr *msg, /* receive/dequeue next skb: * the function understands MSG_PEEK and, thus, does not dequeue skb */ - skb = skb_recv_datagram(sk, flags, noblock, &err); + skb = skb_recv_datagram(sk, flags, &err); if (!skb) { if (sk->sk_shutdown & RCV_SHUTDOWN) return 0; |