PCI/MSI: Use msi_mask_irq() in pci_msi_shutdown()

No point in using the raw write function from shutdown. Preparatory change
to introduce proper serialization for the msi_desc::masked cache.

Signed-off-by: Thomas Gleixner <[email protected]>
Tested-by: Marc Zyngier <[email protected]>
Reviewed-by: Marc Zyngier <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]

Author: KAGA-KOKO

drivers/pci/msi.c

@@ -961,7 +961,7 @@ static void pci_msi_shutdown(struct pci_dev *dev)
 
 	/* Return the device with MSI unmasked as initial states */
 	mask = msi_mask(desc->msi_attrib.multi_cap);
-	__pci_msi_desc_mask_irq(desc, mask, 0);
+	msi_mask_irq(desc, mask, 0);
 
 	/* Restore dev->irq to its default pin-assertion IRQ */
 	dev->irq = desc->msi_attrib.default_irq;