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Message-Id: <20201031113503.288620440@linuxfoundation.org> Date: Sat, 31 Oct 2020 12:36:50 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-kernel@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, Grygorii Strashko <grygorii.strashko@...com>, Pavel Machek <pavel@....cz>, Vincent Guittot <vincent.guittot@...aro.org>, "Rafael J. Wysocki" <rafael.j.wysocki@...el.com> Subject: [PATCH 5.9 68/74] PM: runtime: Fix timer_expires data type on 32-bit arches From: Grygorii Strashko <grygorii.strashko@...com> commit 6b61d49a55796dbbc479eeb4465e59fd656c719c upstream. Commit 8234f6734c5d ("PM-runtime: Switch autosuspend over to using hrtimers") switched PM runtime autosuspend to use hrtimers and all related time accounting in ns, but missed to update the timer_expires data type in struct dev_pm_info to u64. This causes the timer_expires value to be truncated on 32-bit architectures when assignment is done from u64 values: rpm_suspend() |- dev->power.timer_expires = expires; Fix it by changing the timer_expires type to u64. Fixes: 8234f6734c5d ("PM-runtime: Switch autosuspend over to using hrtimers") Signed-off-by: Grygorii Strashko <grygorii.strashko@...com> Acked-by: Pavel Machek <pavel@....cz> Acked-by: Vincent Guittot <vincent.guittot@...aro.org> Cc: 5.0+ <stable@...r.kernel.org> # 5.0+ [ rjw: Subject and changelog edits ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@...el.com> Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> --- include/linux/pm.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -590,7 +590,7 @@ struct dev_pm_info { #endif #ifdef CONFIG_PM struct hrtimer suspend_timer; - unsigned long timer_expires; + u64 timer_expires; struct work_struct work; wait_queue_head_t wait_queue; struct wake_irq *wakeirq;
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