ses: add enclosure logical id
Export the NAA logical id for the enclosure. This is optionally
available from the sas_transport_class, but it is really a property of
the enclosure.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Song Liu <songliubraving@fb.com>
Reviewed-by: Jens Axboe <axboe@fb.com>
Cc: Hannes Reinecke <hare@suse.de>
Signed-off-by: Christoph Hellwig <hch@lst.de>
diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c
index e18278a..958ee98 100644
--- a/drivers/misc/enclosure.c
+++ b/drivers/misc/enclosure.c
@@ -432,8 +432,21 @@
}
static DEVICE_ATTR_RO(components);
+static ssize_t id_show(struct device *cdev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct enclosure_device *edev = to_enclosure_device(cdev);
+
+ if (edev->cb->show_id)
+ return edev->cb->show_id(edev, buf);
+ return -EINVAL;
+}
+static DEVICE_ATTR_RO(id);
+
static struct attribute *enclosure_class_attrs[] = {
&dev_attr_components.attr,
+ &dev_attr_id.attr,
NULL,
};
ATTRIBUTE_GROUPS(enclosure_class);