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authorVitaly Kuznetsov <vkuznets@redhat.com>2016-09-16 09:01:17 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-09-27 12:35:49 +0200
commitb294809dbfa7e50229d00253d43f9a56e5d6a0ba (patch)
treecee193862ae665b14ed6a31734fee61c81040e02 /drivers/hv
parent2d8784df1a1c11ace4e244780facec1e945c5b4f (diff)
downloadop-kernel-dev-b294809dbfa7e50229d00253d43f9a56e5d6a0ba.zip
op-kernel-dev-b294809dbfa7e50229d00253d43f9a56e5d6a0ba.tar.gz
Drivers: hv: make VMBus bus ids persistent
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>
Diffstat (limited to 'drivers/hv')
-rw-r--r--drivers/hv/vmbus_drv.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c
index 6cbe074..a259e18 100644
--- a/drivers/hv/vmbus_drv.c
+++ b/drivers/hv/vmbus_drv.c
@@ -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;
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