[PATCH] net/vdev_netvsc: block driver in github action

[Stephen Hemminger <stephen@networkplumber.org>]

On Hyper-V systems (including Azure-hosted CI), the vdev_netvsc
driver auto-injects itself during vdev bus scan. This interferes
with other tests.

Suppress this by detecting via environment variable.

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
---
 drivers/net/vdev_netvsc/vdev_netvsc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/net/vdev_netvsc/vdev_netvsc.c b/drivers/net/vdev_netvsc/vdev_netvsc.c
index f4a84783ce..39d52b7541 100644
--- a/drivers/net/vdev_netvsc/vdev_netvsc.c
+++ b/drivers/net/vdev_netvsc/vdev_netvsc.c
@@ -805,6 +805,14 @@ vdev_netvsc_scan_callback(__rte_unused void *arg)
 /** Initialize the custom scan. */
 RTE_INIT(vdev_netvsc_custom_scan_add)
 {
+	/*
+	 * Hack: github actions run on Azure/Hyper-V container and don't
+	 * want any network devices in that environment to get intertwined
+	 * with any tests.
+	 */
+	if (getenv("GITHUB_ACTIONS"))
+		return;
+
 	if (rte_hypervisor_get() == RTE_HYPERVISOR_HYPERV)
 		rte_vdev_add_custom_scan(vdev_netvsc_scan_callback, NULL);
 }
-- 
2.51.0