[PATCH v6 03/16] Drivers: hv: vmbus: skip VMBus initialization if Linux is root

[Wei Liu]

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....@kernel.org>
Reviewed-by: Pavel Tatashin <pasha.tatas...@soleen.com>
Reviewed-by: Michael Kelley <mikel...@microsoft.com>
---
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 502f8cd95f6d..ee27b3670a51 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -2620,6 +2620,9 @@ 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