linux-kernel - [PATCH] drivers: make device

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Message-ID: <20110328091252.75a22583@nehalam>
Date:	Mon, 28 Mar 2011 09:12:52 -0700
From:	Stephen Hemminger <shemminger@...tta.com>
To:	Greg KH <greg@...ah.com>
Cc:	linux-kernel@...r.kernel.org
Subject: [PATCH] drivers: make device_type const

The device_type structure does not contain data that changes
during usage and should be const. This allows devices to declare
the struct const.

I have patches to change all the subsystems, but need the infra
structure change first.

Signed-off-by: Stephen Hemminger <shemminger@...tta.com>

---
 drivers/base/core.c    |    4 ++--
 include/linux/device.h |    2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

--- a/drivers/base/core.c	2011-03-28 08:48:43.380836767 -0700
+++ b/drivers/base/core.c	2011-03-28 08:48:46.228868558 -0700
@@ -400,7 +400,7 @@ static void device_remove_groups(struct
 static int device_add_attrs(struct device *dev)
 {
 	struct class *class = dev->class;
-	struct device_type *type = dev->type;
+	const struct device_type *type = dev->type;
 	int error;
 
 	if (class) {
@@ -440,7 +440,7 @@ static int device_add_attrs(struct devic
 static void device_remove_attrs(struct device *dev)
 {
 	struct class *class = dev->class;
-	struct device_type *type = dev->type;
+	const struct device_type *type = dev->type;
 
 	device_remove_groups(dev, dev->groups);
 
--- a/include/linux/device.h	2011-03-28 08:48:43.392836902 -0700
+++ b/include/linux/device.h	2011-03-28 08:48:46.228868558 -0700
@@ -408,7 +408,7 @@ struct device {
 
 	struct kobject kobj;
 	const char		*init_name; /* initial name of the device */
-	struct device_type	*type;
+	const struct device_type *type;
 
 	struct mutex		mutex;	/* mutex to synchronize calls to
 					 * its driver.
--
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