linux-imx

// SPDX-License-Identifier: GPL-1.0+

/*

 * Copyright IBM Corp. 2002, 2009

 *

 * Author(s): Martin Schwidefsky (schwidefsky@de.ibm.com)

 *        Cornelia Huck (cornelia.huck@de.ibm.com)

 */

#include <linux/export.h>

#include <linux/init.h>

#include <linux/errno.h>

#include <linux/slab.h>

#include <linux/list.h>

#include <linux/device.h>

#include <linux/delay.h>

#include <linux/completion.h>

​

#include <asm/ccwdev.h>

#include <asm/idals.h>

#include <asm/chpid.h>

#include <asm/fcx.h>

​

#include "cio.h"

#include "cio_debug.h"

#include "css.h"

#include "chsc.h"

#include "device.h"

#include "chp.h"

​

/**

 * ccw_device_set_options_mask() - set some options and unset the rest

 * @cdev: device for which the options are to be set

 * @flags: options to be set

 *

 * All flags specified in @flags are set, all flags not specified in @flags

 * are cleared.

 * Returns:

 *   %0 on success, -%EINVAL on an invalid flag combination.

 */

int ccw_device_set_options_mask(struct ccw_device *cdev, unsigned long flags)

{

       /*

    * The flag usage is mutal exclusive ...

    */

    if ((flags & CCWDEV_EARLY_NOTIFICATION) &&

        (flags & CCWDEV_REPORT_ALL))

        return -EINVAL;

    cdev->private->options.fast = (flags & CCWDEV_EARLY_NOTIFICATION) != 0;

    cdev->private->options.repall = (flags & CCWDEV_REPORT_ALL) != 0;

    cdev->private->options.pgroup = (flags & CCWDEV_DO_PATHGROUP) != 0;

    cdev->private->options.force = (flags & CCWDEV_ALLOW_FORCE) != 0;

    cdev->private->options.mpath = (flags & CCWDEV_DO_MULTIPATH) != 0;

    return 0;

}

​

/**

 * ccw_device_set_options() - set some options

 * @cdev: device for which the options are to be set

 * @flags: options to be set

 *

 * All flags specified in @flags are set, the remainder is left untouched.

 * Returns:

 *   %0 on success, -%EINVAL if an invalid flag combination would ensue.

 */