iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

genirq: Initialize resend_node hlist for all interrupt descriptors

Browse Source 
commit b184c8c2889ceef0a137c7d0567ef9fe3d92276e upstream.

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
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Dawei Li 2024-01-22 16:57:15 +08:00 committed by Greg Kroah-Hartman
parent 33f49a6835
commit 5966ed9caa
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
kernel/irq/irqdesc.c
View File

@ -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();
}