xhci: Move functions to cleanup MSI to xhci-pci

Move function to cleanup MSI from xhci.c to xhci-pci.c
This is to decouple PCI specific code from generic xhci code.

No functional changes, function is an exact copy
Signed-off-by: Josue David Hernandez Gutierrez <josue.d.hernandez.gutierrez@intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Link: https://lore.kernel.org/r/20230317154715.535523-13-mathias.nyman@linux.intel.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/usb/host/xhci-pci.c

@@ -88,6 +88,32 @@ static const struct xhci_driver_overrides xhci_pci_overrides __initconst = {
 	.update_hub_device = xhci_pci_update_hub_device,
 };
 
+/* Free any IRQs and disable MSI-X */
+static void xhci_cleanup_msix(struct xhci_hcd *xhci)
+{
+	struct usb_hcd *hcd = xhci_to_hcd(xhci);
+	struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
+
+	if (xhci->quirks & XHCI_PLAT)
+		return;
+
+	/* return if using legacy interrupt */
+	if (hcd->irq > 0)
+		return;
+
+	if (hcd->msix_enabled) {
+		int i;
+
+		for (i = 0; i < xhci->msix_count; i++)
+			free_irq(pci_irq_vector(pdev, i), xhci_to_hcd(xhci));
+	} else {
+		free_irq(pci_irq_vector(pdev, 0), xhci_to_hcd(xhci));
+	}
+
+	pci_free_irq_vectors(pdev);
+	hcd->msix_enabled = 0;
+}
+
 /*
  * Set up MSI
  */

drivers/usb/host/xhci.c

@@ -320,33 +320,6 @@ static int xhci_disable_interrupter(struct xhci_interrupter *ir)
 
 #ifdef CONFIG_USB_PCI
 
-/* Free any IRQs and disable MSI-X */
-void xhci_cleanup_msix(struct xhci_hcd *xhci)
-{
-	struct usb_hcd *hcd = xhci_to_hcd(xhci);
-	struct pci_dev *pdev = to_pci_dev(hcd->self.controller);
-
-	if (xhci->quirks & XHCI_PLAT)
-		return;
-
-	/* return if using legacy interrupt */
-	if (hcd->irq > 0)
-		return;
-
-	if (hcd->msix_enabled) {
-		int i;
-
-		for (i = 0; i < xhci->msix_count; i++)
-			free_irq(pci_irq_vector(pdev, i), xhci_to_hcd(xhci));
-	} else {
-		free_irq(pci_irq_vector(pdev, 0), xhci_to_hcd(xhci));
-	}
-
-	pci_free_irq_vectors(pdev);
-	hcd->msix_enabled = 0;
-}
-EXPORT_SYMBOL_GPL(xhci_cleanup_msix);
-
 static void __maybe_unused xhci_msix_sync_irqs(struct xhci_hcd *xhci)
 {
 	struct usb_hcd *hcd = xhci_to_hcd(xhci);
@@ -362,10 +335,6 @@ static void __maybe_unused xhci_msix_sync_irqs(struct xhci_hcd *xhci)
 
 #else
 
-static inline void xhci_cleanup_msix(struct xhci_hcd *xhci)
-{
-}
-
 static inline void xhci_msix_sync_irqs(struct xhci_hcd *xhci)
 {
 }

drivers/usb/host/xhci.h

@@ -2144,7 +2144,6 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated);
 
 irqreturn_t xhci_irq(struct usb_hcd *hcd);
 irqreturn_t xhci_msi_irq(int irq, void *hcd);
-void xhci_cleanup_msix(struct xhci_hcd *xhci);
 int xhci_alloc_dev(struct usb_hcd *hcd, struct usb_device *udev);
 int xhci_alloc_tt_info(struct xhci_hcd *xhci,
 		struct xhci_virt_device *virt_dev,