Commit b184c8c2 authored by Dawei Li's avatar Dawei Li Committed by Thomas Gleixner
Browse files

genirq: Initialize resend_node hlist for all interrupt descriptors 



For a CONFIG_SPARSE_IRQ=n kernel, early_irq_init() is supposed to
initialize all interrupt descriptors.

It does except for irq_desc::resend_node, which ia only initialized for the
first descriptor.

Use the indexed decriptor and not the base pointer to address that.

Fixes: bc06a9e0 ("genirq: Use hlist for managing resend handlers")
Signed-off-by: default avatarDawei Li <dawei.li@shingroup.cn>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Acked-by: default avatarMarc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240122085716.2999875-5-dawei.li@shingroup.cn
parent 6613476e

kernel/irq/irqdesc.c

+1 −1
Original line number Diff line number Diff line
@@ -600,7 +600,7 @@ int __init early_irq_init(void) 
		mutex_init(&desc[i].request_mutex);

		init_waitqueue_head(&desc[i].wait_for_threads);

		desc_set_defaults(i, &desc[i], node, NULL, NULL);

		irq_resend_init(desc);

		irq_resend_init(&desc[i]);

	}

	return arch_early_irq_init();

}