For Hyper-V it is quiet difficult to support this socket option,due to
transport internals, so disable it.
Signed-off-by: Arseniy Krasnov <AVKrasnov@xxxxxxxxxxxxxx>
Reviewed-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
---
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 e111e13b6660..5fab8f356a86 100644
--- a/net/vmw_vsock/hyperv_transport.c
+++ b/net/vmw_vsock/hyperv_transport.c
@@ -802,6 +802,12 @@ 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,
@@ -837,6 +843,7 @@ 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
