From ae72f3156729541581f526b85883ca53a20df2fa Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Mon, 6 Dec 2021 23:27:42 +0100
Subject: PCI/MSI: Make arch_restore_msi_irqs() less horrible.

Make arch_restore_msi_irqs() return a boolean which indicates whether the
core code should restore the MSI message or not. Get rid of the indirection
in x86.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>	# PCI
Link: https://lore.kernel.org/r/20211206210224.485668098@linutronix.de
---
 arch/x86/kernel/apic/msi.c | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'arch/x86/kernel/apic')

diff --git a/arch/x86/kernel/apic/msi.c b/arch/x86/kernel/apic/msi.c
index 1656477e4169..b270b70f41c6 100644
--- a/arch/x86/kernel/apic/msi.c
+++ b/arch/x86/kernel/apic/msi.c
@@ -19,6 +19,7 @@
 #include <asm/hw_irq.h>
 #include <asm/apic.h>
 #include <asm/irq_remapping.h>
+#include <asm/xen/hypervisor.h>
 
 struct irq_domain *x86_pci_msi_default_domain __ro_after_init;
 
@@ -345,3 +346,8 @@ void dmar_free_hwirq(int irq)
 	irq_domain_free_irqs(irq, 1);
 }
 #endif
+
+bool arch_restore_msi_irqs(struct pci_dev *dev)
+{
+	return xen_initdom_restore_msi(dev);
+}
-- 
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