commit 9e52bf0d727211d60a3b176056ae61666bf24d21 (HEAD -> master)
Author: Naveen Kumar Parna <naveenkumar.parna@gmail.com>
Date:   Tue Feb 25 12:18:35 2025 +0530

    added more debug logs in hotplug_event()

diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index 5b1f271c6..d2ab041bc 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -789,8 +789,10 @@ static void hotplug_event(u32 type, struct acpiphp_context *context)

        acpi_lock_hp_context();
        bridge = context->bridge;
-       if (bridge)
+       if (bridge) {
                get_bridge(bridge);
+               acpi_handle_debug(handle, "Bridge acquired in %s()\n", __func__);
+       }

        acpi_unlock_hp_context();

@@ -800,10 +802,13 @@ static void hotplug_event(u32 type, struct acpiphp_context *context)
        case ACPI_NOTIFY_BUS_CHECK:
                /* bus re-enumerate */
                acpi_handle_debug(handle, "Bus check in %s()\n", __func__);
-               if (bridge)
+               if (bridge) {
+                       acpi_handle_debug(handle, "Checking bridge in %s()\n", __func__);
                        acpiphp_check_bridge(bridge);
-               else if (!(slot->flags & SLOT_IS_GOING_AWAY))
+               } else if (!(slot->flags & SLOT_IS_GOING_AWAY)) {
+                       acpi_handle_debug(handle, "Enabling slot in %s()\n", __func__);
                        enable_slot(slot, false);
+               }

                break;

@@ -811,14 +816,18 @@ static void hotplug_event(u32 type, struct acpiphp_context *context)
                /* device check */
                acpi_handle_debug(handle, "Device check in %s()\n", __func__);
                if (bridge) {
+                       acpi_handle_debug(handle, "Checking bridge in %s()\n", __func__);
                        acpiphp_check_bridge(bridge);
                } else if (!(slot->flags & SLOT_IS_GOING_AWAY)) {
+                       acpi_handle_debug(handle, "Rescanning slot in %s()\n", __func__);
                        /*
                         * Check if anything has changed in the slot and rescan
                         * from the parent if that's the case.
                         */
-                       if (acpiphp_rescan_slot(slot))
+                       if (acpiphp_rescan_slot(slot)) {
+                               acpi_handle_debug(handle, "Checking parent bridge in %s()\n", __func__);
                                acpiphp_check_bridge(func->parent);
+                       }
                }
                break;

@@ -830,8 +839,10 @@ static void hotplug_event(u32 type, struct acpiphp_context *context)
        }

        pci_unlock_rescan_remove();
-       if (bridge)
+       if (bridge) {
+               acpi_handle_debug(handle, "Releasing bridge in %s()\n", __func__);
                put_bridge(bridge);
+       }
 }

 static int acpiphp_hotplug_notify(struct acpi_device *adev, u32 type)