genirq/affinity: Replace cpumask_weight() with cpumask_empty() where appropriate

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__irq_build_affinity_masks() calls cpumask_weight() to check if any bit of
a given cpumask is set.

This can be done more efficiently with cpumask_empty() because
cpumask_empty() stops traversing the cpumask as soon as it finds first set
bit, while cpumask_weight() counts all bits unconditionally.

Signed-off-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20220210224933.379149-22-yury.norov@gmail.com

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Yury Norov 2022-02-10 14:49:05 -08:00 • committed by Thomas Gleixner

parent 3f893a5962

commit 911488de05

1 changed files with 1 additions and 1 deletions

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kernel/irq/affinity.c

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