6.6-stable review patch. If anyone has any objections, please let me know.
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From: Dawei Li dawei.li@shingroup.cn
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 --- kernel/irq/irqdesc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- 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(); }