PCI: Add helpers to manage pci_dev->irq and pci_dev->irq_managed

Add pci_has_managed_irq(), pci_set_managed_irq(), and
pci_reset_managed_irq() to simplify code.  No functional change.

[bhelgaas: changelog]
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 17 insertions, 0 deletions

diff --git a/include/linux/pci.h b/include/linux/pci.h
index b4832c9..b7ab0c4 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -963,6 +963,23 @@ static inline int pci_is_managed(struct pci_dev *pdev)
 	return pdev->is_managed;
 }
 
+static inline void pci_set_managed_irq(struct pci_dev *pdev, unsigned int irq)
+{
+	pdev->irq = irq;
+	pdev->irq_managed = 1;
+}
+
+static inline void pci_reset_managed_irq(struct pci_dev *pdev)
+{
+	pdev->irq = 0;
+	pdev->irq_managed = 0;
+}
+
+static inline bool pci_has_managed_irq(struct pci_dev *pdev)
+{
+	return pdev->irq_managed && pdev->irq > 0;
+}
+
 void pci_disable_device(struct pci_dev *dev);
 
 extern unsigned int pcibios_max_latency;