git: be52a81be079 - stable/15 - LinuxKPI: add skeleton pci_enable_wake()

From: Bjoern A. Zeeb <bz_at_FreeBSD.org>
Date: Thu, 23 Oct 2025 09:44:07 UTC
The branch stable/15 has been updated by bz:

URL: https://cgit.FreeBSD.org/src/commit/?id=be52a81be07997f84f454637372a056415f6a2eb

commit be52a81be07997f84f454637372a056415f6a2eb
Author:     Bjoern A. Zeeb <bz@FreeBSD.org>
AuthorDate: 2025-10-17 20:38:11 +0000
Commit:     Bjoern A. Zeeb <bz@FreeBSD.org>
CommitDate: 2025-10-23 06:35:06 +0000

    LinuxKPI: add skeleton pci_enable_wake()
    
    Given we do not yet support "wake" bits in device there is little need
    doing it in PCI if we cannot check if we are supposed to do the
    operation in first place.  Once we would implement this, we would need
    to also do the appropriate PCI (pme) checks before enabling (disabling)
    it.
    
    Reviewed by:    dumbbell
    Differential Revision: https://reviews.freebsd.org/D53208
    
    (cherry picked from commit 885e8f272f7515b0325974de72d18b73318eff07)
---
 sys/compat/linuxkpi/common/include/linux/pci.h | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/sys/compat/linuxkpi/common/include/linux/pci.h b/sys/compat/linuxkpi/common/include/linux/pci.h
index ffc2be600c22..06336bf963d6 100644
--- a/sys/compat/linuxkpi/common/include/linux/pci.h
+++ b/sys/compat/linuxkpi/common/include/linux/pci.h
@@ -831,6 +831,19 @@ lkpi_pci_restore_state(struct pci_dev *pdev)
 #define pci_save_state(dev)	lkpi_pci_save_state(dev)
 #define pci_restore_state(dev)	lkpi_pci_restore_state(dev)
 
+static inline int
+linuxkpi_pci_enable_wake(struct pci_dev *pdev, pci_power_t state, bool ena)
+{
+	/*
+	 * We do not currently support this in device.h either to
+	 * check if the device is allowed to wake up in first place.
+	 */
+	pr_debug("%s: TODO\n", __func__);
+	return (0);
+}
+#define	pci_enable_wake(dev, state, ena)				\
+    linuxkpi_pci_enable_wake(dev, state, ena)
+
 static inline int
 pci_reset_function(struct pci_dev *pdev)
 {