linux-kernel - [PATCH v2 4/5] genirq: Initialize resend_node hlist for all irq

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Date: Mon, 22 Jan 2024 16:57:15 +0800
From: Dawei Li <dawei.li@...ngroup.cn>
To: tglx@...utronix.de,
	maz@...nel.org
Cc: sdonthineni@...dia.com,
	linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	dawei.li@...ngroup.cn,
	set_pte_at@...look.com,
	stable@...r.kernel.org
Subject: [PATCH v2 4/5] genirq: Initialize resend_node hlist for all irq_desc

For !CONFIG_SPARSE_IRQ kernel, early_irq_init() is supposed to
initialize all the desc entries in system, desc->resend_node
included.

Thus, initialize desc->resend_node for all irq_desc entries, rather
than irq_desc[0] only, which is the current implementation is about.

Fixes: bc06a9e08742 ("genirq: Use hlist for managing resend handlers")
Cc: stable@...r.kernel.org

Acked-by: Marc Zyngier <maz@...nel.org>
Signed-off-by: Dawei Li <dawei.li@...ngroup.cn>
---
 kernel/irq/irqdesc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 27ca1c866f29..371eb1711d34 100644
--- a/kernel/irq/irqdesc.c
+++ b/kernel/irq/irqdesc.c
@@ -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();
 }
-- 
2.27.0