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Drivers: hv: make VMBus bus ids persistent

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Some tools use bus ids to identify devices and they count on the fact
that these ids are persistent across reboot. This may be not true for
VMBus as we use auto incremented counter from alloc_channel() as such
id. Switch to using if_instance from channel offer, this id is supposed
to be persistent.

Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com>
Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Vitaly Kuznetsov 2016-09-16 09:01:17 -07:00 committed by Greg Kroah-Hartman
parent 2d8784df1a
commit b294809dbf
1 changed files with 2 additions and 2 deletions
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4
drivers/hv/vmbus_drv.c
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@ -961,8 +961,8 @@ int vmbus_device_register(struct hv_device *child_device_obj)
{
int ret = 0;
dev_set_name(&child_device_obj->device, "vmbus_%d",
child_device_obj->channel->id);
dev_set_name(&child_device_obj->device, "vmbus-%pUl",
child_device_obj->channel->offermsg.offer.if_instance.b);
child_device_obj->device.bus = &hv_bus;
child_device_obj->device.parent = &hv_acpi_dev->dev;