From: Wei Liu <wei.liu@kernel.org>
Date: Wed, 3 Feb 2021 15:04:22 +0000 (+0000)
Subject: Drivers: hv: vmbus: skip VMBus initialization if Linux is root
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=7e279d78664aa91107ebff4b03eca367967f5908;p=linux.git

Drivers: hv: vmbus: skip VMBus initialization if Linux is root

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>
Reviewed-by: Pavel Tatashin <pasha.tatashin@soleen.com>
Reviewed-by: Michael Kelley <mikelley@microsoft.com>
Link: https://lore.kernel.org/r/20210203150435.27941-4-wei.liu@kernel.org
---

diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 65535c32662d4..10dce9f912168 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -2645,6 +2645,9 @@ static int __init hv_acpi_init(void)
 	if (!hv_is_hyperv_initialized())
 		return -ENODEV;
 
+	if (hv_root_partition)
+		return 0;
+
 	init_completion(&probe_event);
 
 	/*