irqchip/sifive-plic: Avoid explicit cpumask allocation on stack

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In general it's preferable to avoid placing cpumasks on the stack, as
for large values of NR_CPUS these can consume significant amounts of
stack space and make stack overflows more likely.

Use cpumask_first_and_and() to avoid the need for a temporary cpumask on
the stack.

Signed-off-by: Dawei Li <dawei.li@shingroup.cn>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://lore.kernel.org/r/20240416085454.3547175-7-dawei.li@shingroup.cn

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Dawei Li 2024-04-16 16:54:53 +08:00 • committed by Thomas Gleixner

parent 5d650d1eba

commit a7fb69ffd7

1 changed files with 2 additions and 5 deletions

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drivers/irqchip/irq-sifive-plic.c

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