Commit a6fe30d1 authored Sep 06, 2024 by Costa Shulyupin Committed by Thomas Gleixner Sep 08, 2024

genirq: Use cpumask_intersects()



Replace `cpumask_any_and(a, b) >= nr_cpu_ids` and `cpumask_any_and(a, b) <
nr_cpu_ids` with the more readable `!cpumask_intersects(a, b)` and
`cpumask_intersects(a, b)`

Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/all/20240906170142.1135207-1-costa.shul@redhat.com

parent 87b5a153

kernel/irq/chip.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -198,7 +198,7 @@ __irq_startup_managed(struct irq_desc desc, const struct cpumask aff,

		irqd_clr_managed_shutdown(d);

		if (cpumask_any_and(aff, cpu_online_mask) >= nr_cpu_ids) {
		if (!cpumask_intersects(aff, cpu_online_mask)) {
		/*
		* Catch code which fiddles with enable_irq() on a managed
		* and potentially shutdown IRQ. Chained interrupt

kernel/irq/migration.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -26,7 +26,7 @@ bool irq_fixup_move_pending(struct irq_desc *desc, bool force_clear)
		* The outgoing CPU might be the last online target in a pending
		* interrupt move. If that's the case clear the pending move bit.
		*/
		if (cpumask_any_and(desc->pending_mask, cpu_online_mask) >= nr_cpu_ids) {
		if (!cpumask_intersects(desc->pending_mask, cpu_online_mask)) {
		irqd_clr_move_pending(data);
		return false;
		}
		@@ -74,7 +74,7 @@ void irq_move_masked_irq(struct irq_data *idata)
		* For correct operation this depends on the caller
		* masking the irqs.
		*/
		if (cpumask_any_and(desc->pending_mask, cpu_online_mask) < nr_cpu_ids) {
		if (cpumask_intersects(desc->pending_mask, cpu_online_mask)) {
		int ret;

		ret = irq_do_set_affinity(data, desc->pending_mask, false);