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rtc: remove rtc_class_ops.read_callback

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Since commit 416f0e8056 ("RTC: sa1100: Update the sa1100 RTC driver."),
the last user of .read_callback is gone. It has been 8 years and now new
user appeared. Simply remove it.

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
This commit is contained in:
Alexandre Belloni 2019-02-25 21:20:45 +01:00
parent 67075b63cc
commit ad5ea5b9d5
2 changed files with 1 additions and 7 deletions
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5
drivers/rtc/dev.c
View file

@ -178,11 +178,6 @@ rtc_dev_read(struct file *file, char __user *buf, size_t count, loff_t *ppos)
remove_wait_queue(&rtc->irq_queue, &wait);
if (ret == 0) {
/* Check for any data updates */
if (rtc->ops->read_callback)
data = rtc->ops->read_callback(rtc->dev.parent,
data);
if (sizeof(int) != sizeof(long) &&
count == sizeof(unsigned int))
ret = put_user(data, (unsigned int __user *)buf) ?:

3
include/linux/rtc.h
View file

@ -67,7 +67,7 @@ extern struct class *rtc_class;
*
* The (current) exceptions are mostly filesystem hooks:
* - the proc() hook for procfs
* - non-ioctl() chardev hooks: open(), release(), read_callback()
* - non-ioctl() chardev hooks: open(), release()
*
* REVISIT those periodic irq calls *do* have ops_lock when they're
* issued through ioctl() ...
@ -81,7 +81,6 @@ struct rtc_class_ops {
int (*proc)(struct device *, struct seq_file *);
int (*set_mmss64)(struct device *, time64_t secs);
int (*set_mmss)(struct device *, unsigned long secs);
int (*read_callback)(struct device *, int data);
int (*alarm_irq_enable)(struct device *, unsigned int enabled);
int (*read_offset)(struct device *, long *offset);
int (*set_offset)(struct device *, long offset);