--- /dev/null
+From: Ron Economos <re@w6rz.net>
+Date: Sat, 18 Jan 2025 04:24:09 -0800
+Subject: Partial revert of xhci: use pm_ptr() instead #ifdef for CONFIG_PM conditionals
+To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, stable@vger.kernel.org
+Cc: Pavel Machek <pavel@denx.de>, linux-kernel@vger.kernel.org, Ron Economos <re@w6rz.net>
+Message-ID: <20250118122409.4052121-1-re@w6rz.net>
+
+commit 9734fd7a2777 ("xhci: use pm_ptr() instead of #ifdef for CONFIG_PM
+conditionals") did not quite work properly in the 6.1.y branch where it was
+applied to fix a build error when CONFIG_PM was set as it left the following
+build errors still present:
+
+ ERROR: modpost: "xhci_suspend" [drivers/usb/host/xhci-pci.ko] undefined!
+ ERROR: modpost: "xhci_resume" [drivers/usb/host/xhci-pci.ko] undefined!
+
+Fix this up by properly placing the #ifdef CONFIG_PM in the xhci-pci.c and
+hcd.h files to handle this correctly.
+
+Link: https://lore.kernel.org/r/133dbfa0-4a37-4ae0-bb95-1a35f668ec11@w6rz.net
+Signed-off-by: Ron Economos <re@w6rz.net>
+Link: https://lore.kernel.org/r/d0919169-ee06-4bdd-b2e3-2f776db90971@roeck-us.net
+Reported-by: Guenter Roeck <linux@roeck-us.net>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/usb/host/xhci-pci.c | 8 +++++++-
+ include/linux/usb/hcd.h | 2 ++
+ 2 files changed, 9 insertions(+), 1 deletion(-)
+
+--- a/drivers/usb/host/xhci-pci.c
++++ b/drivers/usb/host/xhci-pci.c
+@@ -571,6 +571,7 @@ static void xhci_pci_remove(struct pci_d
+ pci_set_power_state(dev, PCI_D3hot);
+ }
+
++#ifdef CONFIG_PM
+ /*
+ * In some Intel xHCI controllers, in order to get D3 working,
+ * through a vendor specific SSIC CONFIG register at offset 0x883c,
+@@ -720,6 +721,7 @@ static void xhci_pci_shutdown(struct usb
+ if (xhci->quirks & XHCI_SPURIOUS_WAKEUP)
+ pci_set_power_state(pdev, PCI_D3hot);
+ }
++#endif /* CONFIG_PM */
+
+ /*-------------------------------------------------------------------------*/
+
+@@ -761,17 +763,21 @@ static struct pci_driver xhci_pci_driver
+ /* suspend and resume implemented later */
+
+ .shutdown = usb_hcd_pci_shutdown,
++#ifdef CONFIG_PM
+ .driver = {
+- .pm = pm_ptr(&usb_hcd_pci_pm_ops),
++ .pm = &usb_hcd_pci_pm_ops
+ },
++#endif
+ };
+
+ static int __init xhci_pci_init(void)
+ {
+ xhci_init_driver(&xhci_pci_hc_driver, &xhci_pci_overrides);
++#ifdef CONFIG_PM
+ xhci_pci_hc_driver.pci_suspend = xhci_pci_suspend;
+ xhci_pci_hc_driver.pci_resume = xhci_pci_resume;
+ xhci_pci_hc_driver.shutdown = xhci_pci_shutdown;
++#endif
+ return pci_register_driver(&xhci_pci_driver);
+ }
+ module_init(xhci_pci_init);
+--- a/include/linux/usb/hcd.h
++++ b/include/linux/usb/hcd.h
+@@ -486,7 +486,9 @@ extern void usb_hcd_pci_shutdown(struct
+
+ extern int usb_hcd_amd_remote_wakeup_quirk(struct pci_dev *dev);
+
++#ifdef CONFIG_PM
+ extern const struct dev_pm_ops usb_hcd_pci_pm_ops;
++#endif
+ #endif /* CONFIG_USB_PCI */
+
+ /* pci-ish (pdev null is ok) buffer alloc/mapping support */