Alexandre Belloni 3599aef557 alarmtimer: Check RTC features instead of ops ...

[ Upstream commit e09784a8a7 ]

RTC drivers used to leave .set_alarm() NULL in order to signal the RTC
device doesn't support alarms. The drivers are now clearing the
RTC_FEATURE_ALARM bit for that purpose in order to keep the rtc_class_ops
structure const. So now, .set_alarm() is set unconditionally and this
possibly causes the alarmtimer code to select an RTC device that doesn't
support alarms.

Test RTC_FEATURE_ALARM instead of relying on ops->set_alarm to determine
whether alarms are available.

Fixes: 7ae41220ef ("rtc: introduce features bitfield")
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20210511014516.563031-1-alexandre.belloni@bootlin.com
Signed-off-by: Sasha Levin <sashal@kernel.org>

2026-06-01 17:29:47 +02:00

..

alarmtimer.c

alarmtimer: Check RTC features instead of ops

2026-06-01 17:29:47 +02:00

clockevents.c

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clocksource.c

clocksource: Fix the CPUs' choice in the watchdog per CPU verification

2025-06-27 11:04:15 +01:00

hrtimer.c

hrtimer: Fix trace oddity

2026-03-04 07:19:24 -05:00

itimer.c

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jiffies.c

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Kconfig

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Makefile

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namespace.c

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ntp_internal.h

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ntp.c

ntp: Safeguard against time_constant overflow

2024-08-19 05:41:18 +02:00

posix-clock.c

ptp: Add PHC file mode checks. Allow RO adjtime() without FMODE_WRITE.

2026-02-06 16:40:03 +01:00

posix-cpu-timers.c

posix-cpu-timers: fix race between handle_posix_cpu_timers() and posix_cpu_timer_del()

2025-06-27 11:04:10 +01:00

posix-stubs.c

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posix-timers.c

posix-timers: Add cond_resched() to posix_timer_add() search loop

2025-06-04 14:37:00 +02:00

posix-timers.h

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sched_clock.c

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test_udelay.c

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tick-broadcast-hrtimer.c

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tick-broadcast.c

tick/broadcast: Move per CPU pointer access into the atomic section

2024-08-19 05:41:18 +02:00

tick-common.c

tick/nohz_full: Don't abuse smp_call_function_single() in tick_setup_device()

2024-07-05 09:12:32 +02:00

tick-internal.h

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tick-oneshot.c

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tick-sched.c

tick/sched: Preserve number of idle sleeps across CPU hotplug events

2024-02-23 08:42:01 +01:00

tick-sched.h

tick: Detect and fix jiffies update stall

2023-08-30 16:23:17 +02:00

time.c

time/jiffies: Mark jiffies_64_to_clock_t() notrace

2026-04-18 10:30:56 +02:00

timeconst.bc

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timeconv.c

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timecounter.c

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timekeeping_debug.c

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timekeeping_internal.h

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timekeeping.c

timekeeping: Fix cross-timestamp interpolation for non-x86

2024-03-26 18:21:48 -04:00

timekeeping.h

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timer_list.c

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timer.c

timers: Rename del_timer_sync() to timer_delete_sync()

2024-04-13 12:57:58 +02:00

vsyscall.c

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