--- linux-6.12.1/drivers/iommu/irq_remapping.c~	2024-11-22 14:30:26.000000000 +0000
+++ linux-6.12.1/drivers/iommu/irq_remapping.c	2025-03-12 17:17:13.684425681 +0000
@@ -24,7 +24,7 @@
 
 int disable_irq_post = 0;
 
-bool enable_posted_msi __ro_after_init;
+bool enable_posted_msi __ro_after_init = true;
 
 static int disable_irq_remap;
 static struct irq_remap_ops *remap_ops;