Messages in this thread Patch in this message | | | From | Vitaly Kuznetsov <> | Subject | [PATCH v2 1/2] Drivers: hv: make VMBus bus ids persistent | Date | Tue, 23 Aug 2016 23:51:31 +0200 |
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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> --- drivers/hv/vmbus_drv.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index e82f7e1..ca7ae7a 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; -- 2.7.4
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