[PATCH v3 03/17] Drivers: hv: vmbus: skip VMBus initialization if Linux is root

Wei Liu
2020-11-24T17:08:15Z

There is no VMBus and the other infrastructures initialized in
hv_acpi_init when Linux is running as the root partition.

Signed-off-by: Wei Liu <wei.liu@kernel.org>
---
v3: Return 0 instead of -ENODEV.
---
drivers/hv/vmbus_drv.c | 3 +++
1 file changed, 3 insertions(+)

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 4fad3e6745e5..23f5bce8f242 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -2612,6 +2612,9 @@ static int __init hv_acpi_init(void)
if (!hv_is_hyperv_initialized())
return -ENODEV;

+ if (hv_root_partition)
+ return 0;
+
init_completion(&probe_event);

/*
--
2.20.1