[PATCH v5 03/21] rtc: Switch to use %ptR

From: Andy Shevchenko
Date: Thu Nov 29 2018 - 06:06:17 EST


Use %ptR instead of open coded variant to print content of
struct rtc_time in human readable format.

Note, we drop the validation option. This is only used in
a deprecated ABI and is mostly wrong as many RTCs will still be valid
after 2100.

Cc: Arnd Bergmann <arnd@xxxxxxxx>
Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
---
drivers/char/rtc.c | 7 +++----
drivers/rtc/hctosys.c | 8 ++------
drivers/rtc/interface.c | 8 ++------
drivers/rtc/rtc-proc.c | 36 +++++-------------------------------
drivers/rtc/rtc-sysfs.c | 16 ++++++----------
5 files changed, 18 insertions(+), 57 deletions(-)

diff --git a/drivers/char/rtc.c b/drivers/char/rtc.c
index 4948c8bda6b1..0cde96822a87 100644
--- a/drivers/char/rtc.c
+++ b/drivers/char/rtc.c
@@ -1125,11 +1125,10 @@ static int rtc_proc_show(struct seq_file *seq, void *v)
* time or for Universal Standard Time (GMT). Probably local though.
*/
seq_printf(seq,
- "rtc_time\t: %02d:%02d:%02d\n"
- "rtc_date\t: %04d-%02d-%02d\n"
+ "rtc_time\t: %ptRt\n"
+ "rtc_date\t: %ptRd\n"
"rtc_epoch\t: %04lu\n",
- tm.tm_hour, tm.tm_min, tm.tm_sec,
- tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, epoch);
+ &tm, &tm, epoch);

get_rtc_alm_time(&tm);

diff --git a/drivers/rtc/hctosys.c b/drivers/rtc/hctosys.c
index b9ec4a16db1f..ff2092a0d38c 100644
--- a/drivers/rtc/hctosys.c
+++ b/drivers/rtc/hctosys.c
@@ -58,12 +58,8 @@ static int __init rtc_hctosys(void)

err = do_settimeofday64(&tv64);

- dev_info(rtc->dev.parent,
- "setting system clock to "
- "%d-%02d-%02d %02d:%02d:%02d UTC (%lld)\n",
- tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
- tm.tm_hour, tm.tm_min, tm.tm_sec,
- (long long) tv64.tv_sec);
+ dev_info(rtc->dev.parent, "setting system clock to %ptR UTC (%lld)\n",
+ &tm, (long long)tv64.tv_sec);

err_read:
rtc_class_close(rtc);
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 612a83d3ddcc..e8d77b1eaeb2 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -368,12 +368,8 @@ int __rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
err = rtc_valid_tm(&alarm->time);

done:
- if (err) {
- dev_warn(&rtc->dev, "invalid alarm value: %d-%d-%d %d:%d:%d\n",
- alarm->time.tm_year + 1900, alarm->time.tm_mon + 1,
- alarm->time.tm_mday, alarm->time.tm_hour, alarm->time.tm_min,
- alarm->time.tm_sec);
- }
+ if (err)
+ dev_warn(&rtc->dev, "invalid alarm value: %ptR\n", &alarm->time);

return err;
}
diff --git a/drivers/rtc/rtc-proc.c b/drivers/rtc/rtc-proc.c
index a9dd9218fae2..4d74e4f4ff30 100644
--- a/drivers/rtc/rtc-proc.c
+++ b/drivers/rtc/rtc-proc.c
@@ -50,41 +50,15 @@ static int rtc_proc_show(struct seq_file *seq, void *offset)
err = rtc_read_time(rtc, &tm);
if (err == 0) {
seq_printf(seq,
- "rtc_time\t: %02d:%02d:%02d\n"
- "rtc_date\t: %04d-%02d-%02d\n",
- tm.tm_hour, tm.tm_min, tm.tm_sec,
- tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
+ "rtc_time\t: %ptRt\n"
+ "rtc_date\t: %ptRd\n",
+ &tm, &tm);
}

err = rtc_read_alarm(rtc, &alrm);
if (err == 0) {
- seq_printf(seq, "alrm_time\t: ");
- if ((unsigned int)alrm.time.tm_hour <= 24)
- seq_printf(seq, "%02d:", alrm.time.tm_hour);
- else
- seq_printf(seq, "**:");
- if ((unsigned int)alrm.time.tm_min <= 59)
- seq_printf(seq, "%02d:", alrm.time.tm_min);
- else
- seq_printf(seq, "**:");
- if ((unsigned int)alrm.time.tm_sec <= 59)
- seq_printf(seq, "%02d\n", alrm.time.tm_sec);
- else
- seq_printf(seq, "**\n");
-
- seq_printf(seq, "alrm_date\t: ");
- if ((unsigned int)alrm.time.tm_year <= 200)
- seq_printf(seq, "%04d-", alrm.time.tm_year + 1900);
- else
- seq_printf(seq, "****-");
- if ((unsigned int)alrm.time.tm_mon <= 11)
- seq_printf(seq, "%02d-", alrm.time.tm_mon + 1);
- else
- seq_printf(seq, "**-");
- if (alrm.time.tm_mday && (unsigned int)alrm.time.tm_mday <= 31)
- seq_printf(seq, "%02d\n", alrm.time.tm_mday);
- else
- seq_printf(seq, "**\n");
+ seq_printf(seq, "alrm_time\t: %ptRt\n", &alrm.time);
+ seq_printf(seq, "alrm_date\t: %ptRd\n", &alrm.time);
seq_printf(seq, "alarm_IRQ\t: %s\n",
alrm.enabled ? "yes" : "no");
seq_printf(seq, "alrm_pending\t: %s\n",
diff --git a/drivers/rtc/rtc-sysfs.c b/drivers/rtc/rtc-sysfs.c
index 9746c32eee2e..a8f22ee726bb 100644
--- a/drivers/rtc/rtc-sysfs.c
+++ b/drivers/rtc/rtc-sysfs.c
@@ -39,12 +39,10 @@ date_show(struct device *dev, struct device_attribute *attr, char *buf)
struct rtc_time tm;

retval = rtc_read_time(to_rtc_device(dev), &tm);
- if (retval == 0) {
- retval = sprintf(buf, "%04d-%02d-%02d\n",
- tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
- }
+ if (retval)
+ return retval;

- return retval;
+ return sprintf(buf, "%ptRd\n", &tm);
}
static DEVICE_ATTR_RO(date);

@@ -55,12 +53,10 @@ time_show(struct device *dev, struct device_attribute *attr, char *buf)
struct rtc_time tm;

retval = rtc_read_time(to_rtc_device(dev), &tm);
- if (retval == 0) {
- retval = sprintf(buf, "%02d:%02d:%02d\n",
- tm.tm_hour, tm.tm_min, tm.tm_sec);
- }
+ if (retval)
+ return retval;

- return retval;
+ return sprintf(buf, "%ptRt\n", &tm);
}
static DEVICE_ATTR_RO(time);

--
2.19.2