1 files changed, 55 insertions, 9 deletions

diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index e2cee22f578a..9e8a9b555ad6 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -17,10 +17,12 @@
 #include <linux/list.h>
 #include <linux/lockdep.h>
 #include <linux/kobject_ns.h>
+#include <linux/stat.h>
 #include <linux/atomic.h>
 
 struct kobject;
 struct module;
+struct bin_attribute;
 enum kobj_ns_type;
 
 struct attribute {
@@ -59,26 +61,28 @@ struct attribute_group {
         umode_t                 (*is_visible)(struct kobject *,
                                               struct attribute *, int);
         struct attribute        **attrs;
+        struct bin_attribute    **bin_attrs;
 };
 
-
-
 /**
  * Use these macros to make defining attributes easier. See include/linux/device.h
  * for examples..
  */
 
-#define __ATTR(_name,_mode,_show,_store) { \
-        .attr = {.name = __stringify(_name), .mode = _mode },   \
-        .show   = _show,                                        \
-        .store  = _store,                                       \
+#define __ATTR(_name,_mode,_show,_store) {                              \
+        .attr = {.name = __stringify(_name), .mode = _mode },           \
+        .show   = _show,                                                \
+        .store  = _store,                                               \
 }
 
-#define __ATTR_RO(_name) { \
-        .attr   = { .name = __stringify(_name), .mode = 0444 }, \
-        .show   = _name##_show,                                 \
+#define __ATTR_RO(_name) {                                              \
+        .attr   = { .name = __stringify(_name), .mode = S_IRUGO },      \
+        .show   = _name##_show,                                         \
 }
 
+#define __ATTR_RW(_name) __ATTR(_name, (S_IWUSR | S_IRUGO),             \
+                         _name##_show, _name##_store)
+
 #define __ATTR_NULL { .attr = { .name = NULL } }
 
 #ifdef CONFIG_DEBUG_LOCK_ALLOC
@@ -92,6 +96,18 @@ struct attribute_group {
 #define __ATTR_IGNORE_LOCKDEP   __ATTR
 #endif
 
+#define __ATTRIBUTE_GROUPS(_name)                               \
+static const struct attribute_group *_name##_groups[] = {       \
+        &_name##_group,                                         \
+        NULL,                                                   \
+}
+
+#define ATTRIBUTE_GROUPS(_name)                                 \
+static const struct attribute_group _name##_group = {           \
+        .attrs = _name##_attrs,                                 \
+};                                                              \
+__ATTRIBUTE_GROUPS(_name)
+
 #define attr_name(_attr) (_attr).attr.name
 
 struct file;
@@ -121,6 +137,36 @@ struct bin_attribute {
  */
 #define sysfs_bin_attr_init(bin_attr) sysfs_attr_init(&(bin_attr)->attr)
 
+/* macros to create static binary attributes easier */
+#define __BIN_ATTR(_name, _mode, _read, _write, _size) {                \
+        .attr = { .name = __stringify(_name), .mode = _mode },          \
+        .read   = _read,                                                \
+        .write  = _write,                                               \
+        .size   = _size,                                                \
+}
+
+#define __BIN_ATTR_RO(_name, _size) {                                   \
+        .attr   = { .name = __stringify(_name), .mode = S_IRUGO },      \
+        .read   = _name##_read,                                         \
+        .size   = _size,                                                \
+}
+
+#define __BIN_ATTR_RW(_name, _size) __BIN_ATTR(_name,                   \
+                                   (S_IWUSR | S_IRUGO), _name##_read,   \
+                                   _name##_write)
+
+#define __BIN_ATTR_NULL __ATTR_NULL
+
+#define BIN_ATTR(_name, _mode, _read, _write, _size)                    \
+struct bin_attribute bin_attr_##_name = __BIN_ATTR(_name, _mode, _read, \
+                                        _write, _size)
+
+#define BIN_ATTR_RO(_name, _size)                                       \
+struct bin_attribute bin_attr_##_name = __BIN_ATTR_RO(_name, _size)
+
+#define BIN_ATTR_RW(_name, _size)                                       \
+struct bin_attribute bin_attr_##_name = __BIN_ATTR_RW(_name, _size)
+
 struct sysfs_ops {
         ssize_t (*show)(struct kobject *, struct attribute *,char *);
         ssize_t (*store)(struct kobject *,struct attribute *,const char *, size_t);