linux/drivers/pci/hotplug/pciehp_pci.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * PCI Express Hot Plug Controller Driver
 *
 * Copyright (C) 1995,2001 Compaq Computer Corporation
 * Copyright (C) 2001 Greg Kroah-Hartman ([email protected])
 * Copyright (C) 2001 IBM Corp.
 * Copyright (C) 2003-2004 Intel Corporation
 *
 * All rights reserved.
 *
 * Send feedback to <[email protected]>, <[email protected]>
 *
 */

#define dev_fmt(fmt) …

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/pci.h>
#include "../pci.h"
#include "pciehp.h"

/**
 * pciehp_configure_device() - enumerate PCI devices below a hotplug bridge
 * @ctrl: PCIe hotplug controller
 *
 * Enumerate PCI devices below a hotplug bridge and add them to the system.
 * Return 0 on success, %-EEXIST if the devices are already enumerated or
 * %-ENODEV if enumeration failed.
 */
int pciehp_configure_device(struct controller *ctrl)
{ … }

/**
 * pciehp_unconfigure_device() - remove PCI devices below a hotplug bridge
 * @ctrl: PCIe hotplug controller
 * @presence: whether the card is still present in the slot;
 *	true for safe removal via sysfs or an Attention Button press,
 *	false for surprise removal
 *
 * Unbind PCI devices below a hotplug bridge from their drivers and remove
 * them from the system.  Safely removed devices are quiesced.  Surprise
 * removed devices are marked as such to prevent further accesses.
 */
void pciehp_unconfigure_device(struct controller *ctrl, bool presence)
{ … }