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xen: Add module alias to autoload backend drivers 

All the Xen backend drivers are assigned to a special bus type
xen-backend. This patch exports xen-backend:* names through modalias and
uevent to autoload them.

Signed-off-by: Bastian Blank <waldi@debian.org>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
hifive-unleashed-5.1
Bastian Blank 2011-06-29 14:40:08 +02:00 committed by Konrad Rzeszutek Wilk
parent cc85e93342
commit 149bb2fab5
2 changed files with 5 additions and 1 deletions
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3
drivers/xen/xenbus/xenbus_probe.c
View File

@ -393,7 +393,8 @@ static ssize_t devtype_show(struct device *dev,
static ssize_t modalias_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
return sprintf(buf, "xen:%s\n", to_xenbus_device(dev)->devicetype);
return sprintf(buf, "%s:%s\n", dev->bus->name,
to_xenbus_device(dev)->devicetype);
}
struct device_attribute xenbus_dev_attrs[] = {

3
drivers/xen/xenbus/xenbus_probe_backend.c
View File

@ -107,6 +107,9 @@ static int xenbus_uevent_backend(struct device *dev,
if (xdev == NULL)
return -ENODEV;
if (add_uevent_var(env, "MODALIAS=xen-backend:%s", xdev->devicetype))
return -ENOMEM;
/* stuff we want to pass to /sbin/hotplug */
if (add_uevent_var(env, "XENBUS_TYPE=%s", xdev->devicetype))
return -ENOMEM;