From: "Luis R. Rodriguez" <mcgrof@xxxxxxxxxxxxxxxx>
This backports the following commit:
commit 3493f69f4c4e8703961919a9a56c2d2e6a25b46f
Author: Oliver Schinagl <oliver@xxxxxxxxxxx>
Date: Sun Jul 14 16:05:59 2013 -0700
sysfs: add more helper macro's for (bin_)attribute(_groups)
With the recent changes to sysfs there's various helper macro's.
However there's no RW, RO BIN_ helper macro's. This patch adds them.
Signed-off-by: Oliver Schinagl <oliver@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Luis R. Rodriguez <mcgrof@xxxxxxxxxxxxxxxx>
---
backport/backport-include/linux/sysfs.h | 50 +++++++++++++++++++++++++++++++
1 file changed, 50 insertions(+)
diff --git a/backport/backport-include/linux/sysfs.h b/backport/backport-include/linux/sysfs.h
index a2ef73f..f71caac 100644
--- a/backport/backport-include/linux/sysfs.h
+++ b/backport/backport-include/linux/sysfs.h
@@ -2,6 +2,7 @@
#define __BACKPORT_LINUX_SYSFS_H
#include_next <linux/sysfs.h>
#include <linux/version.h>
+#include <linux/stat.h>
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,34)
#ifdef CONFIG_DEBUG_LOCK_ALLOC
@@ -31,4 +32,53 @@ do { \
#endif
#endif
+#if LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0)
+
+#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)
+
+/* 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
+
+#ifndef BIN_ATTR
+#define BIN_ATTR(_name, _mode, _read, _write, _size) \
+struct bin_attribute bin_attr_##_name = __BIN_ATTR(_name, _mode, _read, \
+ _write, _size)
+#endif
+
+#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)
+
+
+#endif /* LINUX_VERSION_CODE < KERNEL_VERSION(3,12,0) */
+
#endif /* __BACKPORT_LINUX_SYSFS_H */
--
1.7.10.4
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