diff options
| author | Oliver Hartkopp <socketcan@hartkopp.net> | 2022-04-04 18:30:22 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2022-04-06 14:45:26 +0200 |
| commit | f4b41f062c424209e3939a81e6da022e049a45f2 (patch) | |
| tree | cd8e8a16fb7cc256ad2a0f4136b169bce3d40e47 /net/ipv6/raw.c | |
| parent | net: ensure net_todo_list is processed quickly (diff) | |
| download | linux-f4b41f062c424209e3939a81e6da022e049a45f2.tar.xz 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/ipv6/raw.c')
| -rw-r--r-- | net/ipv6/raw.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index c51d5ce3711c..8bb41f3b246a 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -477,7 +477,8 @@ static int rawv6_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); - skb = skb_recv_datagram(sk, flags, noblock, &err); + flags |= (noblock ? MSG_DONTWAIT : 0); + skb = skb_recv_datagram(sk, flags, &err); if (!skb) goto out; |