Input: psmouse - allow defining read-only attributes

Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 16 insertions, 5 deletions

diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
index 54ed267894bd..e3562daeb2ed 100644
--- a/drivers/input/mouse/psmouse.h
+++ b/drivers/input/mouse/psmouse.h
@@ -116,9 +116,7 @@ ssize_t psmouse_attr_show_helper(struct device *dev, struct device_attribute *at
 ssize_t psmouse_attr_set_helper(struct device *dev, struct device_attribute *attr,
                                 const char *buf, size_t count);
 
-#define __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, _protect)       \
-static ssize_t _show(struct psmouse *, void *data, char *);                     \
-static ssize_t _set(struct psmouse *, void *data, const char *, size_t);        \
+#define __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect)   \
 static struct psmouse_attribute psmouse_attr_##_name = {                        \
         .dattr  = {                                                             \
                 .attr   = {                                                     \
@@ -134,7 +132,20 @@ static struct psmouse_attribute psmouse_attr_##_name = {			\
         .protect = _protect,                                                    \
 }
 
-#define PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set)   \
-                __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, 1)
+#define __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, _protect)       \
+        static ssize_t _show(struct psmouse *, void *, char *);                 \
+        static ssize_t _set(struct psmouse *, void *, const char *, size_t);    \
+        __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, _set, _protect)
+
+#define PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set)                   \
+        __PSMOUSE_DEFINE_ATTR(_name, _mode, _data, _show, _set, 1)
+
+#define PSMOUSE_DEFINE_RO_ATTR(_name, _mode, _data, _show)                      \
+        static ssize_t _show(struct psmouse *, void *, char *);                 \
+        __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, _show, NULL, 1)
+
+#define PSMOUSE_DEFINE_WO_ATTR(_name, _mode, _data, _set)                       \
+        static ssize_t _set(struct psmouse *, void *, const char *, size_t);    \
+        __PSMOUSE_DEFINE_ATTR_VAR(_name, _mode, _data, NULL, _set, 1)
 
 #endif /* _PSMOUSE_H */