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-rw-r--r--drivers/thunderbolt/switch.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 5ea8db667e83..c498464875cf 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -1114,6 +1114,15 @@ device_name_show(struct device *dev, struct device_attribute *attr, char *buf)
}
static DEVICE_ATTR_RO(device_name);
+static ssize_t
+generation_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ struct tb_switch *sw = tb_to_switch(dev);
+
+ return sprintf(buf, "%u\n", sw->generation);
+}
+static DEVICE_ATTR_RO(generation);
+
static ssize_t key_show(struct device *dev, struct device_attribute *attr,
char *buf)
{
@@ -1319,6 +1328,7 @@ static struct attribute *switch_attrs[] = {
&dev_attr_boot.attr,
&dev_attr_device.attr,
&dev_attr_device_name.attr,
+ &dev_attr_generation.attr,
&dev_attr_key.attr,
&dev_attr_nvm_authenticate.attr,
&dev_attr_nvm_version.attr,