ACK: [SRU][Bionic][Cosmic][PATCH 1/1] UBUNTU: SAUCE: cpuidle/powernv : init all present cpus for deep states

[Kleber Souza]

On 05/23/18 10:33, Joseph Salisbury wrote:
> From: Akshay Adiga <akshay.adiga at linux.vnet.ibm.com>
> 
> BugLink: http://bugs.launchpad.net/bugs/1771780
> 
> Init all present cpus for deep states instead of "all possible" cpus.
> Init fails if the possible cpu is gaurded. Resulting in making only
> non-deep states available for cpuidle/hotplug.
> 
> Signed-off-by: Akshay Adiga <akshay.adiga at linux.vnet.ibm.com>
> Signed-off-by: Joseph Salisbury <joseph.salisbury at canonical.com>

Acked-by: Kleber Sacilotto de Souza <kleber.souza at canonical.com>

> ---
>  arch/powerpc/platforms/powernv/idle.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/powerpc/platforms/powernv/idle.c b/arch/powerpc/platforms/powernv/idle.c
> index 99a760e..3776a58 100644
> --- a/arch/powerpc/platforms/powernv/idle.c
> +++ b/arch/powerpc/platforms/powernv/idle.c
> @@ -79,7 +79,7 @@ static int pnv_save_sprs_for_deep_states(void)
>  	uint64_t msr_val = MSR_IDLE;
>  	uint64_t psscr_val = pnv_deepest_stop_psscr_val;
>  
> -	for_each_possible_cpu(cpu) {
> +	for_each_present_cpu(cpu) {
>  		uint64_t pir = get_hard_smp_processor_id(cpu);
>  		uint64_t hsprg0_val = (uint64_t)&paca[cpu];
>  
> @@ -822,7 +822,7 @@ static int __init pnv_init_idle_states(void)
>  		int cpu;
>  
>  		pr_info("powernv: idle: Saving PACA pointers of all CPUs in their thread sibling PACA\n");
> -		for_each_possible_cpu(cpu) {
> +		for_each_present_cpu(cpu) {
>  			int base_cpu = cpu_first_thread_sibling(cpu);
>  			int idx = cpu_thread_in_core(cpu);
>  			int i;
>