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| author | Alexandre Belloni <[email protected]> | 2021-05-11 01:45:16 +0000 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2021-05-11 19:28:04 +0000 |
| commit | e09784a8a751e539dffc94d43bc917b0ac1e934a (patch) | |
| tree | 6e00548e382a36961740da2374e8ada39aeb45de /drivers/clocksource/hyperv_timer.c | |
| parent | Linux 5.13-rc1 (diff) | |
| download | kernel-e09784a8a751e539dffc94d43bc917b0ac1e934a.tar.gz kernel-e09784a8a751e539dffc94d43bc917b0ac1e934a.zip | |
alarmtimer: Check RTC features instead of ops
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: 7ae41220ef58 ("rtc: introduce features bitfield")
Signed-off-by: Alexandre Belloni <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Diffstat (limited to 'drivers/clocksource/hyperv_timer.c')
0 files changed, 0 insertions, 0 deletions