[PATCH] constify rtc_class_ops: update drivers

Update RTC framework so that drivers can constify their method tables, moving
them from ".data" to ".rodata". Then update the drivers.

Signed-off-by: David Brownell <[e-mail]>
Cc: Alessandro Zummo <[e-mail]>
Signed-off-by: Andrew Morton <[e-mail]>
Signed-off-by: Linus Torvalds <[e-mail]>

drivers/rtc/class.c

···
  * Returns the pointer to the new struct class device.
  */
 struct rtc_device *rtc_device_register(const char *name, struct device *dev,
-					struct rtc_class_ops *ops,
+					const struct rtc_class_ops *ops,
 					struct module *owner)
 {
 	struct rtc_device *rtc;

drivers/rtc/rtc-at91.c

···
 	return IRQ_NONE;		/* not handled */
 }
 
-static struct rtc_class_ops at91_rtc_ops = {
+static const struct rtc_class_ops at91_rtc_ops = {
 	.ioctl		= at91_rtc_ioctl,
 	.read_time	= at91_rtc_readtime,
 	.set_time	= at91_rtc_settime,

drivers/rtc/rtc-dev.c

···
 	int err;
 	struct rtc_device *rtc = container_of(inode->i_cdev,
 					struct rtc_device, char_dev);
-	struct rtc_class_ops *ops = rtc->ops;
+	const struct rtc_class_ops *ops = rtc->ops;
 
 	/* We keep the lock as long as the device is in use
 	 * and return immediately if busy
···
 	int err = 0;
 	struct class_device *class_dev = file->private_data;
 	struct rtc_device *rtc = to_rtc_device(class_dev);
-	struct rtc_class_ops *ops = rtc->ops;
+	const struct rtc_class_ops *ops = rtc->ops;
 	struct rtc_time tm;
 	struct rtc_wkalrm alarm;
 	void __user *uarg = (void __user *) arg;

drivers/rtc/rtc-ds1307.c

···
 	return 0;
 }
 
-static struct rtc_class_ops ds13xx_rtc_ops = {
+static const struct rtc_class_ops ds13xx_rtc_ops = {
 	.read_time	= ds1307_get_time,
 	.set_time	= ds1307_set_time,
 };

drivers/rtc/rtc-ds1553.c

···
 	return 0;
 }
 
-static struct rtc_class_ops ds1553_rtc_ops = {
+static const struct rtc_class_ops ds1553_rtc_ops = {
 	.read_time	= ds1553_rtc_read_time,
 	.set_time	= ds1553_rtc_set_time,
 	.read_alarm	= ds1553_rtc_read_alarm,

drivers/rtc/rtc-ds1672.c

···
 }
 static DEVICE_ATTR(control, S_IRUGO, show_control, NULL);
 
-static struct rtc_class_ops ds1672_rtc_ops = {
+static const struct rtc_class_ops ds1672_rtc_ops = {
 	.read_time	= ds1672_rtc_read_time,
 	.set_time	= ds1672_rtc_set_time,
 	.set_mmss	= ds1672_rtc_set_mmss,

drivers/rtc/rtc-ds1742.c

···
 	return 0;
 }
 
-static struct rtc_class_ops ds1742_rtc_ops = {
+static const struct rtc_class_ops ds1742_rtc_ops = {
 	.read_time	= ds1742_rtc_read_time,
 	.set_time	= ds1742_rtc_set_time,
 };

drivers/rtc/rtc-ep93xx.c

···
 	return 0;
 }
 
-static struct rtc_class_ops ep93xx_rtc_ops = {
+static const struct rtc_class_ops ep93xx_rtc_ops = {
 	.read_time	= ep93xx_rtc_read_time,
 	.set_time	= ep93xx_rtc_set_time,
 	.set_mmss	= ep93xx_rtc_set_mmss,

drivers/rtc/rtc-isl1208.c

···
 	return isl1208_i2c_read_alarm(to_i2c_client(dev), alarm);
 }
 
-static struct rtc_class_ops isl1208_rtc_ops = {
+static const struct rtc_class_ops isl1208_rtc_ops = {
 	.proc		= isl1208_rtc_proc,
 	.read_time	= isl1208_rtc_read_time,
 	.set_time	= isl1208_rtc_set_time,

drivers/rtc/rtc-m48t86.c

···
 	return 0;
 }
 
-static struct rtc_class_ops m48t86_rtc_ops = {
+static const struct rtc_class_ops m48t86_rtc_ops = {
 	.read_time	= m48t86_rtc_read_time,
 	.set_time	= m48t86_rtc_set_time,
 	.proc		= m48t86_rtc_proc,

drivers/rtc/rtc-max6902.c

···
 	return max6902_set_datetime(dev, tm);
 }
 
-static struct rtc_class_ops max6902_rtc_ops = {
+static const struct rtc_class_ops max6902_rtc_ops = {
 	.read_time	= max6902_read_time,
 	.set_time	= max6902_set_time,
 };

drivers/rtc/rtc-pcf8563.c

···
 	return pcf8563_set_datetime(to_i2c_client(dev), tm);
 }
 
-static struct rtc_class_ops pcf8563_rtc_ops = {
+static const struct rtc_class_ops pcf8563_rtc_ops = {
 	.read_time	= pcf8563_rtc_read_time,
 	.set_time	= pcf8563_rtc_set_time,
 };

drivers/rtc/rtc-pcf8583.c

···
 	return ret;
 }
 
-static struct rtc_class_ops pcf8583_rtc_ops = {
+static const struct rtc_class_ops pcf8583_rtc_ops = {
 	.read_time	= pcf8583_rtc_read_time,
 	.set_time	= pcf8583_rtc_set_time,
 };

drivers/rtc/rtc-pl031.c

···
 	return 0;
 }
 
-static struct rtc_class_ops pl031_ops = {
+static const struct rtc_class_ops pl031_ops = {
 	.open = pl031_open,
 	.release = pl031_release,
 	.ioctl = pl031_ioctl,

drivers/rtc/rtc-proc.c

···
 {
 	int err;
 	struct class_device *class_dev = seq->private;
-	struct rtc_class_ops *ops = to_rtc_device(class_dev)->ops;
+	const struct rtc_class_ops *ops = to_rtc_device(class_dev)->ops;
 	struct rtc_wkalrm alrm;
 	struct rtc_time tm;
 

drivers/rtc/rtc-rs5c348.c

···
 	return 0;
 }
 
-static struct rtc_class_ops rs5c348_rtc_ops = {
+static const struct rtc_class_ops rs5c348_rtc_ops = {
 	.read_time	= rs5c348_rtc_read_time,
 	.set_time	= rs5c348_rtc_set_time,
 };

drivers/rtc/rtc-rs5c372.c

···
 	return 0;
 }
 
-static struct rtc_class_ops rs5c372_rtc_ops = {
+static const struct rtc_class_ops rs5c372_rtc_ops = {
 	.proc		= rs5c372_rtc_proc,
 	.read_time	= rs5c372_rtc_read_time,
 	.set_time	= rs5c372_rtc_set_time,

drivers/rtc/rtc-s3c.c

···
 	free_irq(s3c_rtc_tickno, rtc_dev);
 }
 
-static struct rtc_class_ops s3c_rtcops = {
+static const struct rtc_class_ops s3c_rtcops = {
 	.open		= s3c_rtc_open,
 	.release	= s3c_rtc_release,
 	.ioctl		= s3c_rtc_ioctl,

drivers/rtc/rtc-sa1100.c

···
 	return 0;
 }
 
-static struct rtc_class_ops sa1100_rtc_ops = {
+static const struct rtc_class_ops sa1100_rtc_ops = {
 	.open = sa1100_rtc_open,
 	.read_callback = sa1100_rtc_read_callback,
 	.release = sa1100_rtc_release,

drivers/rtc/rtc-test.c

···
 	}
 }
 
-static struct rtc_class_ops test_rtc_ops = {
+static const struct rtc_class_ops test_rtc_ops = {
 	.proc = test_rtc_proc,
 	.read_time = test_rtc_read_time,
 	.set_time = test_rtc_set_time,

drivers/rtc/rtc-v3020.c

···
 	return 0;
 }
 
-static struct rtc_class_ops v3020_rtc_ops = {
+static const struct rtc_class_ops v3020_rtc_ops = {
 	.read_time	= v3020_read_time,
 	.set_time	= v3020_set_time,
 };

drivers/rtc/rtc-vr41xx.c

···
 	return IRQ_HANDLED;
 }
 
-static struct rtc_class_ops vr41xx_rtc_ops = {
+static const struct rtc_class_ops vr41xx_rtc_ops = {
 	.release	= vr41xx_rtc_release,
 	.ioctl		= vr41xx_rtc_ioctl,
 	.read_time	= vr41xx_rtc_read_time,

drivers/rtc/rtc-x1205.c

···
 	return 0;
 }
 
-static struct rtc_class_ops x1205_rtc_ops = {
+static const struct rtc_class_ops x1205_rtc_ops = {
 	.proc		= x1205_rtc_proc,
 	.read_time	= x1205_rtc_read_time,
 	.set_time	= x1205_rtc_set_time,

include/linux/rtc.h

···
 	int id;
 	char name[RTC_DEVICE_NAME_SIZE];
 
-	struct rtc_class_ops *ops;
+	const struct rtc_class_ops *ops;
 	struct mutex ops_lock;
 
 	struct class_device *rtc_dev;
···
 
 extern struct rtc_device *rtc_device_register(const char *name,
 					struct device *dev,
-					struct rtc_class_ops *ops,
+					const struct rtc_class_ops *ops,
 					struct module *owner);
 extern void rtc_device_unregister(struct rtc_device *rdev);
 extern int rtc_interface_register(struct class_interface *intf);