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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-16 09:42:13 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-05-16 09:42:13 -0700 |
| commit | 8ce3648158d7bc9e5035d5a1db02c892905babbf (patch) | |
| tree | c01f3911e705d9e4332a173ec0bce5d7d5252bea /kernel | |
| parent | f44e58bb1905ada4910f26676d2ea22a35545276 (diff) | |
| parent | 3486d2c9be652a31033363bdd50391b0c8a8fe21 (diff) | |
Merge tag 'timers-urgent-2021-05-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fixes from Thomas Gleixner:
"Two fixes for timers:
- Use the ALARM feature check in the alarmtimer core code insted of
the old method of checking for the set_alarm() callback.
Drivers can have that callback set but the feature bit cleared. If
such a RTC device is selected then alarms wont work.
- Use a proper define to let the preprocessor check whether Hyper-V
VDSO clocksource should be active.
The code used a constant in an enum with #ifdef, which evaluates to
always false and disabled the clocksource for VDSO"
* tag 'timers-urgent-2021-05-16' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/drivers/hyper-v: Re-enable VDSO_CLOCKMODE_HVCLOCK on X86
alarmtimer: Check RTC features instead of ops
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/time/alarmtimer.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/kernel/time/alarmtimer.c b/kernel/time/alarmtimer.c index bea9d08b1698..5897828b9d7e 100644 --- a/kernel/time/alarmtimer.c +++ b/kernel/time/alarmtimer.c @@ -92,7 +92,7 @@ static int alarmtimer_rtc_add_device(struct device *dev, if (rtcdev) return -EBUSY; - if (!rtc->ops->set_alarm) + if (!test_bit(RTC_FEATURE_ALARM, rtc->features)) return -1; if (!device_may_wakeup(rtc->dev.parent)) return -1; |