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authorVitaly Kuznetsov <vkuznets@redhat.com>2016-09-16 19:01:17 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-09-27 13:35:49 +0300
commitb294809dbfa7e50229d00253d43f9a56e5d6a0ba (patch)
treecee193862ae665b14ed6a31734fee61c81040e02 /drivers/hv
parent2d8784df1a1c11ace4e244780facec1e945c5b4f (diff)
downloadlinux-b294809dbfa7e50229d00253d43f9a56e5d6a0ba.tar.xz
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 6cbe07462785..a259e18d22d5 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;