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powerpc: Use cpumask_next_wrap instead

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cpu = cpumask_next(cpu, mask)
if (cpu >= nr_cpu_ids)
    cpu = cpumask_first(mask)

Above block is identical to:
cpu = cpumask_next_wrap(cpu, mask)

Replace it, No change in functionality or performance.
Slightly simpler code.

Reviewed-by: Yury Norov <ynorov@nvidia.com>
Signed-off-by: Shrikanth Hegde <sshegde@linux.ibm.com>
Reviewed-by: Yury Norov <ynorov@gmail.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260427044715.559137-2-sshegde@linux.ibm.com
This commit is contained in:
Shrikanth Hegde 2026-04-27 10:17:12 +05:30 committed by Madhavan Srinivasan
parent b3580dd1c6
commit 1ca0c82bbc
2 changed files with 2 additions and 7 deletions
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5
arch/powerpc/kernel/irq.c
View File

@ -370,10 +370,7 @@ int irq_choose_cpu(const struct cpumask *mask)
do_round_robin:
raw_spin_lock_irqsave(&irq_rover_lock, flags);
irq_rover = cpumask_next(irq_rover, cpu_online_mask);
if (irq_rover >= nr_cpu_ids)
irq_rover = cpumask_first(cpu_online_mask);
irq_rover = cpumask_next_wrap(irq_rover, cpu_online_mask);
cpuid = irq_rover;
raw_spin_unlock_irqrestore(&irq_rover_lock, flags);

4
arch/powerpc/mm/book3s64/hash_utils.c
View File

@ -1299,9 +1299,7 @@ static void stress_hpt_timer_fn(struct timer_list *timer)
if (!firmware_has_feature(FW_FEATURE_LPAR))
tlbiel_all();
next_cpu = cpumask_next(raw_smp_processor_id(), cpu_online_mask);
if (next_cpu >= nr_cpu_ids)
next_cpu = cpumask_first(cpu_online_mask);
next_cpu = cpumask_next_wrap(raw_smp_processor_id(), cpu_online_mask);
stress_hpt_timer.expires = jiffies + msecs_to_jiffies(10);
add_timer_on(&stress_hpt_timer, next_cpu);
}