[PATCH net-next v4 2/9] hv_sock: disable SO_RCVLOWAT support
From: Arseniy Krasnov <hidden>
Date: 2022-08-19 05:28:12
Also in:
kvm, lkml, netdev
Subsystem:
hyper-v/azure core and drivers, networking [general], the rest, vm sockets (af_vsock) · Maintainers:
"K. Y. Srinivasan", Haiyang Zhang, Wei Liu, Dexuan Cui, Long Li, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds, Stefano Garzarella
For Hyper-V it is quiet difficult to support this socket option,due to transport internals, so disable it. Signed-off-by: Arseniy Krasnov <redacted> Reviewed-by: Dexuan Cui <decui@microsoft.com> Reviewed-by: Stefano Garzarella <sgarzare@redhat.com> --- net/vmw_vsock/hyperv_transport.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/net/vmw_vsock/hyperv_transport.c b/net/vmw_vsock/hyperv_transport.c
index fd98229e3db3..59c3e2697069 100644
--- a/net/vmw_vsock/hyperv_transport.c
+++ b/net/vmw_vsock/hyperv_transport.c@@ -815,6 +815,12 @@ int hvs_notify_send_post_enqueue(struct vsock_sock *vsk, ssize_t written, return 0; } +static +int hvs_set_rcvlowat(struct vsock_sock *vsk, int val) +{ + return -EOPNOTSUPP; +} + static struct vsock_transport hvs_transport = { .module = THIS_MODULE,
@@ -850,6 +856,7 @@ static struct vsock_transport hvs_transport = { .notify_send_pre_enqueue = hvs_notify_send_pre_enqueue, .notify_send_post_enqueue = hvs_notify_send_post_enqueue, + .set_rcvlowat = hvs_set_rcvlowat }; static bool hvs_check_transport(struct vsock_sock *vsk)
--
2.25.1