From a65fcce75a75c0d41b938f86d09d42b6f1733309 Mon Sep 17 00:00:00 2001
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Fri, 23 Aug 2013 15:02:01 -0700
Subject: [PATCH] sysfs: create __ATTR_WO()
This creates the macro __ATTR_WO() for write-only attributes, instead of
having to "open define" them.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
include/linux/sysfs.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index b5a9d9b26bd4..69c1ff003628 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -80,6 +80,11 @@ struct attribute_group {
.show = _name##_show, \
}
+#define __ATTR_WO(_name) { \
+ .attr = { .name = __stringify(_name), .mode = S_IWUSR }, \
+ .store = _name##_store, \
+}
+
#define __ATTR_RW(_name) __ATTR(_name, (S_IWUSR | S_IRUGO), \
_name##_show, _name##_store)
--
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