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-rw-r--r--include/linux/sysfs.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index aa02c328dff5..40839c02d28c 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -1,3 +1,4 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
* sysfs.h - definitions for the device driver filesystem
*
@@ -116,6 +117,12 @@ struct attribute_group {
.show = _name##_show, \
}
+#define __ATTR_RO_MODE(_name, _mode) { \
+ .attr = { .name = __stringify(_name), \
+ .mode = VERIFY_OCTAL_PERMISSIONS(_mode) }, \
+ .show = _name##_show, \
+}
+
#define __ATTR_WO(_name) { \
.attr = { .name = __stringify(_name), .mode = S_IWUSR }, \
.store = _name##_store, \