[PATCH v4 03/17] Drivers: hv: vmbus: skip VMBus initialization if Linux is root
From: Wei Liu <wei.liu@kernel.org>
Date: 2021-01-06 20:34:52
Also in:
lkml
Subsystem:
hyper-v/azure core and drivers, the rest · Maintainers:
"K. Y. Srinivasan", Haiyang Zhang, Wei Liu, Dexuan Cui, Long Li, Linus Torvalds
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 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); /*
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2.20.1