Re: [PATCH v2 0/5] s390/idle: CPU idle driver

[Heiko Carstens <hca@linux.ibm.com>]

On Tue, Jun 09, 2026 at 03:24:20PM +0200, Mete Durlu wrote:
> v1 -> v2:
> 
> * Add idle driver enteries to MAINTAINERS file (Christian Loehle)
> * Remove extra line break left in drivers/cpuidle/Kconfig.s390
>   (Christian Loehle)
> 
> This patch series introduces a CPU idle driver for s390
> architecture that leverages the existing cpu idle infrastructure and
> TEO (Timer Events Oriented) governor to optimize idle state selection
> based on timer events and interrupt patterns.
...

> Mete Durlu (5):
>       s390/tick: Remove CIF_NOHZ_DELAY flag
>       tick: Remove arch_needs_cpu
>       s390: Enable TIF_POLLING_NRFLAG
>       s390/idle: Introduce cpuidle for s390
>       s390/configs: Enable cpuidle driver on s390
> 
>  MAINTAINERS                         |   8 +++
>  arch/s390/Kconfig                   |   5 ++
>  arch/s390/configs/debug_defconfig   |   2 +
>  arch/s390/configs/defconfig         |   2 +
>  arch/s390/include/asm/processor.h   |   4 --
>  arch/s390/include/asm/thread_info.h |   1 +
>  arch/s390/kernel/idle.c             |   1 -
>  arch/s390/kernel/irq.c              |   4 --
>  arch/s390/kernel/smp.c              |   1 -
>  drivers/cpuidle/Kconfig             |   5 ++
>  drivers/cpuidle/Kconfig.s390        |  11 ++++
>  drivers/cpuidle/Makefile            |   4 ++
>  drivers/cpuidle/cpuidle-s390.c      | 104 ++++++++++++++++++++++++++++++++++++
>  include/linux/tick.h                |   3 --
>  kernel/time/tick-sched.c            |   7 ++-
>  15 files changed, 145 insertions(+), 17 deletions(-)

Looks all good to me.
Reviewed-by: Heiko Carstens <hca@linux.ibm.com>