From: Dawei Li <dawei.li@shingroup.cn>
Date: Mon, 22 Jan 2024 08:57:15 +0000 (+0800)
Subject: genirq: Initialize resend_node hlist for all interrupt descriptors
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=b184c8c2889ceef0a137c7d0567ef9fe3d92276e;p=linux.git

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: bc06a9e08742 ("genirq: Use hlist for managing resend handlers")
Signed-off-by: Dawei Li <dawei.li@shingroup.cn>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20240122085716.2999875-5-dawei.li@shingroup.cn
---

diff --git a/kernel/irq/irqdesc.c b/kernel/irq/irqdesc.c
index 27ca1c866f298..371eb1711d346 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();
 }