This is a note to let you know that I've just added the patch titled
rtc: set the alarm to the next expiring timer
to the 4.9-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rtc-set-the-alarm-to-the-next-expiring-timer.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Dec 21 09:02:40 CET 2017
From: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
Date: Thu, 28 Sep 2017 13:53:27 +0200
Subject: rtc: set the alarm to the next expiring timer
From: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
[ Upstream commit 74717b28cb32e1ad3c1042cafd76b264c8c0f68d ]
If there is any non expired timer in the queue, the RTC alarm is never set.
This is an issue when adding a timer that expires before the next non
expired timer.
Ensure the RTC alarm is set in that case.
Fixes: 2b2f5ff00f63 ("rtc: interface: ignore expired timers when enqueuing new timers")
Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/rtc/interface.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -772,7 +772,7 @@ static int rtc_timer_enqueue(struct rtc_
}
timerqueue_add(&rtc->timerqueue, &timer->node);
- if (!next) {
+ if (!next || ktime_before(timer->node.expires, next->expires)) {
struct rtc_wkalrm alarm;
int err;
alarm.time = rtc_ktime_to_tm(timer->node.expires);
Patches currently in stable-queue which might be from alexandre.belloni@xxxxxxxxxxxxxxxxxx are
queue-4.9/rtc-set-the-alarm-to-the-next-expiring-timer.patch
queue-4.9/rtc-pl031-make-interrupt-optional.patch