linux-kernel - [PATCH 02/10] sysfs.h: add ATTRIBUTE

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Message-Id: <1373843160-3990-3-git-send-email-gregkh@linuxfoundation.org>
Date:	Sun, 14 Jul 2013 16:05:52 -0700
From:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:	linux-kernel@...r.kernel.org
Cc:	abbotti@....co.uk, oliver@...inagl.nl, linux@...ck-us.net,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: [PATCH 02/10] sysfs.h: add ATTRIBUTE_GROUPS() macro

To make it easier for driver subsystems to work with attribute groups,
create the ATTRIBUTE_GROUPS macro to remove some of the repetitive
typing for the most common use for attribute groups.

Reviewed-by: Guenter Roeck <linux@...ck-us.net>
Tested-by: Guenter Roeck <linux@...ck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 include/linux/sysfs.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/include/linux/sysfs.h b/include/linux/sysfs.h
index 9cd20c84..f62ff01e 100644
--- a/include/linux/sysfs.h
+++ b/include/linux/sysfs.h
@@ -94,6 +94,15 @@ struct attribute_group {
 #define __ATTR_IGNORE_LOCKDEP	__ATTR
 #endif
 
+#define ATTRIBUTE_GROUPS(name)					\
+static const struct attribute_group name##_group = {		\
+	.attrs = name##_attrs,					\
+};								\
+static const struct attribute_group *name##_groups[] = {	\
+	&name##_group,						\
+	NULL,							\
+}
+
 #define attr_name(_attr) (_attr).attr.name
 
 struct file;
-- 
1.8.3.rc0.20.gb99dd2e

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