@@ -246,7 +246,20 @@ static ssize_t remove_store(struct device *dev, struct device_attribute *attr,
static DEVICE_ATTR_WO(remove);
+static ssize_t alias_show(struct device *device,
+ struct device_attribute *attr, char *buf)
+{
+ struct mdev_device *dev = mdev_from_dev(device);
+
+ if (!dev->alias)
+ return -EOPNOTSUPP;
+
+ return sprintf(buf, "%s\n", dev->alias);
+}
+static DEVICE_ATTR_RO(alias);
+
static const struct attribute *mdev_device_attrs[] = {
+ &dev_attr_alias.attr,
&dev_attr_remove.attr,
NULL,
};
Expose the optional alias for an mdev device as a sysfs attribute. This way, userspace tools such as udev may make use of the alias, for example to create a netdevice name for the mdev. Signed-off-by: Parav Pandit <parav@mellanox.com> --- Changelog: v0->v1: - Addressed comments from Cornelia Huck - Updated commit description --- drivers/vfio/mdev/mdev_sysfs.c | 13 +++++++++++++ 1 file changed, 13 insertions(+)