mbox series

[0/2] Fix 2 5.19 power-off regressions caused by sys-off-handler work

Message ID 20220708131412.81078-1-hdegoede@redhat.com
Headers show
Series Fix 2 5.19 power-off regressions caused by sys-off-handler work | expand

Message

Hans de Goede July 8, 2022, 1:14 p.m. UTC
Hi All,

I noticed that my Lenovo Yoga Tablet 2 1050L was hanging on power-off again
with 5.19, even though I had implemented a workaround for this in 5.17 .

I quickly realized that this was caused by the recent sys-off-handler work
and fixed this by switching the workaround over to register_sys_off_handler
with a priority of SYS_OFF_PRIO_FIRMWARE + 1, so that the workaround runs
before acpi_power_off() get a chance to run.

This made me realize that the efi_power_off handler which sometimes is
used in preference of acpi_power_off had the same problem, so the second
patch in this series fixes that.

I plan to include patch 1/2 in a fixes pull-req to Linus soon. Ard,
if I can get your Ack for 2/2 then I can include this in the pull-req
if you want; or you can send this to Linus yourself.

Regards,

Hans


Hans de Goede (2):
  platform/x86: x86-android-tablets: Fix Lenovo Yoga Tablet 2 830/1050
    poweroff again
  efi: Fix efi_power_off() not being run before acpi_power_off() when
    necessary

 drivers/firmware/efi/reboot.c              | 21 +++++++++++----------
 drivers/platform/x86/x86-android-tablets.c | 17 +++++++++++++----
 2 files changed, 24 insertions(+), 14 deletions(-)

Comments

Hans de Goede July 10, 2022, 3:27 p.m. UTC | #1
Hi,

On 7/8/22 15:14, Hans de Goede wrote:
> Hi All,
> 
> I noticed that my Lenovo Yoga Tablet 2 1050L was hanging on power-off again
> with 5.19, even though I had implemented a workaround for this in 5.17 .
> 
> I quickly realized that this was caused by the recent sys-off-handler work
> and fixed this by switching the workaround over to register_sys_off_handler
> with a priority of SYS_OFF_PRIO_FIRMWARE + 1, so that the workaround runs
> before acpi_power_off() get a chance to run.
> 
> This made me realize that the efi_power_off handler which sometimes is
> used in preference of acpi_power_off had the same problem, so the second
> patch in this series fixes that.
> 
> I plan to include patch 1/2 in a fixes pull-req to Linus soon. Ard,
> if I can get your Ack for 2/2 then I can include this in the pull-req
> if you want; or you can send this to Linus yourself.

I've added these to my review-hans (soon to be for-next) branch now
and I'll include them in my upcoming 5.19 fixes pull-req.

Regards,

Hans

> 
> Regards,
> 
> Hans
> 
> 
> Hans de Goede (2):
>   platform/x86: x86-android-tablets: Fix Lenovo Yoga Tablet 2 830/1050
>     poweroff again
>   efi: Fix efi_power_off() not being run before acpi_power_off() when
>     necessary
> 
>  drivers/firmware/efi/reboot.c              | 21 +++++++++++----------
>  drivers/platform/x86/x86-android-tablets.c | 17 +++++++++++++----
>  2 files changed, 24 insertions(+), 14 deletions(-)
>