[lkml]   [2020]   [Oct]   [31]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
Patch in this message
Subject[PATCH 5.9 68/74] PM: runtime: Fix timer_expires data type on 32-bit arches
From: Grygorii Strashko <>

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:

|- 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 <>
Acked-by: Pavel Machek <>
Acked-by: Vincent Guittot <>
Cc: 5.0+ <> # 5.0+
[ rjw: Subject and changelog edits ]
Signed-off-by: Rafael J. Wysocki <>
Signed-off-by: Greg Kroah-Hartman <>

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 {
#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;

 \ /
  Last update: 2020-10-31 12:48    [W:0.274 / U:1.664 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site