From f4b41f062c424209e3939a81e6da022e049a45f2 Mon Sep 17 00:00:00 2001 From: Oliver Hartkopp Date: Mon, 4 Apr 2022 18:30:22 +0200 Subject: 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 Signed-off-by: Oliver Hartkopp Signed-off-by: David S. Miller --- net/mctp/af_mctp.c | 2 +- net/mctp/test/route-test.c | 8 ++++---- 2 files changed, 5 insertions(+), 5 deletions(-) (limited to 'net/mctp') diff --git a/net/mctp/af_mctp.c b/net/mctp/af_mctp.c index f0702d920d8d..5f204eb8abd2 100644 --- a/net/mctp/af_mctp.c +++ b/net/mctp/af_mctp.c @@ -196,7 +196,7 @@ static int mctp_recvmsg(struct socket *sock, struct msghdr *msg, size_t len, if (flags & ~(MSG_DONTWAIT | MSG_TRUNC | MSG_PEEK)) return -EOPNOTSUPP; - skb = skb_recv_datagram(sk, flags, flags & MSG_DONTWAIT, &rc); + skb = skb_recv_datagram(sk, flags, &rc); if (!skb) return rc; diff --git a/net/mctp/test/route-test.c b/net/mctp/test/route-test.c index 61205cf40074..24df29e135ed 100644 --- a/net/mctp/test/route-test.c +++ b/net/mctp/test/route-test.c @@ -352,7 +352,7 @@ static void mctp_test_route_input_sk(struct kunit *test) if (params->deliver) { KUNIT_EXPECT_EQ(test, rc, 0); - skb2 = skb_recv_datagram(sock->sk, 0, 1, &rc); + skb2 = skb_recv_datagram(sock->sk, MSG_DONTWAIT, &rc); KUNIT_EXPECT_NOT_ERR_OR_NULL(test, skb2); KUNIT_EXPECT_EQ(test, skb->len, 1); @@ -360,7 +360,7 @@ static void mctp_test_route_input_sk(struct kunit *test) } else { KUNIT_EXPECT_NE(test, rc, 0); - skb2 = skb_recv_datagram(sock->sk, 0, 1, &rc); + skb2 = skb_recv_datagram(sock->sk, MSG_DONTWAIT, &rc); KUNIT_EXPECT_PTR_EQ(test, skb2, NULL); } @@ -423,7 +423,7 @@ static void mctp_test_route_input_sk_reasm(struct kunit *test) rc = mctp_route_input(&rt->rt, skb); } - skb2 = skb_recv_datagram(sock->sk, 0, 1, &rc); + skb2 = skb_recv_datagram(sock->sk, MSG_DONTWAIT, &rc); if (params->rx_len) { KUNIT_EXPECT_NOT_ERR_OR_NULL(test, skb2); @@ -582,7 +582,7 @@ static void mctp_test_route_input_sk_keys(struct kunit *test) rc = mctp_route_input(&rt->rt, skb); /* (potentially) receive message */ - skb2 = skb_recv_datagram(sock->sk, 0, 1, &rc); + skb2 = skb_recv_datagram(sock->sk, MSG_DONTWAIT, &rc); if (params->deliver) KUNIT_EXPECT_NOT_ERR_OR_NULL(test, skb2); -- cgit