From 2f7c68cb55ecb7331f2381deb497c27155f32faf Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Wed, 03 Jan 2024 09:43:39 +0000
Subject: [PATCH] update kernel to 5.10.198
---
kernel/arch/powerpc/kernel/iommu.c | 17 ++++++++++++++---
1 files changed, 14 insertions(+), 3 deletions(-)
diff --git a/kernel/arch/powerpc/kernel/iommu.c b/kernel/arch/powerpc/kernel/iommu.c
index 6806eef..3706351 100644
--- a/kernel/arch/powerpc/kernel/iommu.c
+++ b/kernel/arch/powerpc/kernel/iommu.c
@@ -133,17 +133,28 @@
return 0;
}
-static struct notifier_block fail_iommu_bus_notifier = {
+/*
+ * PCI and VIO buses need separate notifier_block structs, since they're linked
+ * list nodes. Sharing a notifier_block would mean that any notifiers later
+ * registered for PCI buses would also get called by VIO buses and vice versa.
+ */
+static struct notifier_block fail_iommu_pci_bus_notifier = {
.notifier_call = fail_iommu_bus_notify
};
+
+#ifdef CONFIG_IBMVIO
+static struct notifier_block fail_iommu_vio_bus_notifier = {
+ .notifier_call = fail_iommu_bus_notify
+};
+#endif
static int __init fail_iommu_setup(void)
{
#ifdef CONFIG_PCI
- bus_register_notifier(&pci_bus_type, &fail_iommu_bus_notifier);
+ bus_register_notifier(&pci_bus_type, &fail_iommu_pci_bus_notifier);
#endif
#ifdef CONFIG_IBMVIO
- bus_register_notifier(&vio_bus_type, &fail_iommu_bus_notifier);
+ bus_register_notifier(&vio_bus_type, &fail_iommu_vio_bus_notifier);
#endif
return 0;
--
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