From 149bb2fab547253e6359e76f1b86b95247110e68 Mon Sep 17 00:00:00 2001 From: Bastian Blank Date: Wed, 29 Jun 2011 14:40:08 +0200 Subject: [PATCH] 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 Acked-by: Ian Campbell Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/xenbus/xenbus_probe.c | 3 ++- drivers/xen/xenbus/xenbus_probe_backend.c | 3 +++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c index 2ed0b045c69a..bd2f90c9ac8b 100644 --- a/drivers/xen/xenbus/xenbus_probe.c +++ b/drivers/xen/xenbus/xenbus_probe.c @@ -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[] = { diff --git a/drivers/xen/xenbus/xenbus_probe_backend.c b/drivers/xen/xenbus/xenbus_probe_backend.c index ec510e562820..60adf919d78d 100644 --- a/drivers/xen/xenbus/xenbus_probe_backend.c +++ b/drivers/xen/xenbus/xenbus_probe_backend.c @@ -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; -- 2.20.1