Re: [bisected][mainline]Kernel OOPs at msi_desc_to_pci_dev
From: Nam Cao <hidden>
Date: 2025-10-08 12:42:24
Also in:
lkml
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Linus Torvalds
Venkat Rao Bagalkote [off-list ref] writes:
IBM CI has reported a kernel crash while running module load and unload testing on lpfc driver.
Thanks for the report. I trust the below patch should fix the issue?
diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c
index 825f9432e03d..a82aaa786e9e 100644
--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c@@ -443,8 +443,7 @@ static int pseries_msi_ops_prepare(struct irq_domain *domain, struct device *dev */ static void pseries_msi_ops_teardown(struct irq_domain *domain, msi_alloc_info_t *arg) { - struct msi_desc *desc = arg->desc; - struct pci_dev *pdev = msi_desc_to_pci_dev(desc); + struct pci_dev *pdev = to_pci_dev(domain->dev); rtas_disable_msi(pdev); }