linux-imx

// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0

/*******************************************************************************

 *

 * Module Name: nsalloc - Namespace allocation and deletion utilities

 *

 ******************************************************************************/

​

#include <acpi/acpi.h>

#include "accommon.h"

#include "acnamesp.h"

​

#define _COMPONENT          ACPI_NAMESPACE

ACPI_MODULE_NAME("nsalloc")

​

/*******************************************************************************

 *

 * FUNCTION:    acpi_ns_create_node

 *

 * PARAMETERS:  name            - Name of the new node (4 char ACPI name)

 *

 * RETURN:      New namespace node (Null on failure)

 *

 * DESCRIPTION: Create a namespace node

 *

 ******************************************************************************/

struct acpi_namespace_node *acpi_ns_create_node(u32 name)

{

    struct acpi_namespace_node *node;

#ifdef ACPI_DBG_TRACK_ALLOCATIONS

    u32 temp;

#endif

​

    ACPI_FUNCTION_TRACE(ns_create_node);

​

    node = acpi_os_acquire_object(acpi_gbl_namespace_cache);

    if (!node) {

        return_PTR(NULL);

    }

​

    ACPI_MEM_TRACKING(acpi_gbl_ns_node_list->total_allocated++);

​

#ifdef ACPI_DBG_TRACK_ALLOCATIONS

    temp = acpi_gbl_ns_node_list->total_allocated -

        acpi_gbl_ns_node_list->total_freed;

    if (temp > acpi_gbl_ns_node_list->max_occupied) {

        acpi_gbl_ns_node_list->max_occupied = temp;

    }

#endif

​

    node->name.integer = name;

    ACPI_SET_DESCRIPTOR_TYPE(node, ACPI_DESC_TYPE_NAMED);

    return_PTR(node);

}

​

/*******************************************************************************

 *

 * FUNCTION:    acpi_ns_delete_node

 *

 * PARAMETERS:  node            - Node to be deleted

 *

 * RETURN:      None

 *

 * DESCRIPTION: Delete a namespace node. All node deletions must come through