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Commit 5d20637b authored by Bjorn Helgaas's avatar Bjorn Helgaas
Browse files

PCI/portdrv: Remove unused pcie_port_acpi_setup() 



02bfeb48 ("PCI/portdrv: Simplify PCIe feature permission checking")
removed the only call of pcie_port_acpi_setup() and removed portdrv_acpi.o
from the Makefile, but I forgot to remove pcie_port_acpi_setup() itself.

Remove pcie_port_acpi_setup() and the drivers/pci/pcie/portdrv_acpi.c file.

Signed-off-by: default avatarBjorn Helgaas <bhelgaas@google.com>
parent 60cc43fc

drivers/pci/pcie/portdrv_acpi.c

deleted100644 → 0
+0 −57
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/*

 * PCIe Port Native Services Support, ACPI-Related Part

 *

 * Copyright (C) 2010 Rafael J. Wysocki <rjw@sisk.pl>, Novell Inc.

 */



#include <linux/pci.h>

#include <linux/kernel.h>

#include <linux/errno.h>

#include <linux/acpi.h>

#include <linux/pci-acpi.h>



#include "aer/aerdrv.h"

#include "../pci.h"

#include "portdrv.h"



/**

 * pcie_port_acpi_setup - Request the BIOS to release control of PCIe services.

 * @port: PCIe Port service for a root port or event collector.

 * @srv_mask: Bit mask of services that can be enabled for @port.

 *

 * Invoked when @port is identified as a PCIe port device.  To avoid conflicts

 * with the BIOS PCIe port native services support requires the BIOS to yield

 * control of these services to the kernel.  The mask of services that the BIOS

 * allows to be enabled for @port is written to @srv_mask.

 *

 * NOTE: It turns out that we cannot do that for individual port services

 * separately, because that would make some systems work incorrectly.

 */

void pcie_port_acpi_setup(struct pci_dev *port, int *srv_mask)

{

	struct acpi_pci_root *root;

	acpi_handle handle;

	u32 flags;



	if (acpi_pci_disabled)

		return;



	handle = acpi_find_root_bridge_handle(port);

	if (!handle)

		return;



	root = acpi_pci_find_root(handle);

	if (!root)

		return;



	flags = root->osc_control_set;



	*srv_mask = 0;

	if (flags & OSC_PCI_EXPRESS_NATIVE_HP_CONTROL)

		*srv_mask |= PCIE_PORT_SERVICE_HP;

	if (flags & OSC_PCI_EXPRESS_PME_CONTROL)

		*srv_mask |= PCIE_PORT_SERVICE_PME;

	if (flags & OSC_PCI_EXPRESS_AER_CONTROL)

		*srv_mask |= PCIE_PORT_SERVICE_AER | PCIE_PORT_SERVICE_DPC;

}