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File: [Development] / linux-2.6-xfs / arch / sh / drivers / push-switch.c (download)

Revision 1.2, Wed Sep 12 17:09:56 2007 UTC (10 years, 1 month ago) by tes.longdrop.melbourne.sgi.com
Branch: MAIN
CVS Tags: HEAD
Changes since 1.1: +1 -1 lines

Update 2.6.x-xfs to 2.6.23-rc4.

Also update fs/xfs with external mainline changes.
There were 12 such missing commits that I detected:

--------
commit ad690ef9e690f6c31f7d310b09ef1314bcec9033
Author: Al Viro <viro@ftp.linux.org.uk>
    xfs ioctl __user annotations

commit 20c2df83d25c6a95affe6157a4c9cac4cf5ffaac
Author: Paul Mundt <lethal@linux-sh.org>
    mm: Remove slab destructors from kmem_cache_create().

commit d0217ac04ca6591841e5665f518e38064f4e65bd
Author: Nick Piggin <npiggin@suse.de>
    mm: fault feedback #1

commit 54cb8821de07f2ffcd28c380ce9b93d5784b40d7
Author: Nick Piggin <npiggin@suse.de>
    mm: merge populate and nopage into fault (fixes nonlinear)

commit d00806b183152af6d24f46f0c33f14162ca1262a
Author: Nick Piggin <npiggin@suse.de>
    mm: fix fault vs invalidate race for linear mappings

commit a569425512253992cc64ebf8b6d00a62f986db3e
Author: Christoph Hellwig <hch@infradead.org>
    knfsd: exportfs: add exportfs.h header

commit 831441862956fffa17b9801db37e6ea1650b0f69
Author: Rafael J. Wysocki <rjw@sisk.pl>
    Freezer: make kernel threads nonfreezable by default

commit 8e1f936b73150f5095448a0fee6d4f30a1f9001d
Author: Rusty Russell <rusty@rustcorp.com.au>
    mm: clean up and kernelify shrinker registration

commit 5ffc4ef45b3b0a57872f631b4e4ceb8ace0d7496
Author: Jens Axboe <jens.axboe@oracle.com>
    sendfile: remove .sendfile from filesystems that use generic_file_sendfile()

commit 8bb7844286fb8c9fce6f65d8288aeb09d03a5e0d
Author: Rafael J. Wysocki <rjw@sisk.pl>
    Add suspend-related notifications for CPU hotplug

commit 59c51591a0ac7568824f541f57de967e88adaa07
Author: Michael Opdenacker <michael@free-electrons.com>
    Fix occurrences of "the the "

commit 0ceb331433e8aad9c5f441a965d7c681f8b9046f
Author: Dmitriy Monakhov <dmonakhov@openvz.org>
    mm: move common segment checks to separate helper function
--------
Merge of 2.6.x-xfs-melb:linux:29656b by kenmcd.

/*
 * Generic push-switch framework
 *
 * Copyright (C) 2006  Paul Mundt
 *
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 */
#include <linux/init.h>
#include <linux/module.h>
#include <linux/interrupt.h>
#include <linux/platform_device.h>
#include <asm/push-switch.h>

#define DRV_NAME "push-switch"
#define DRV_VERSION "0.1.1"

static ssize_t switch_show(struct device *dev,
			   struct device_attribute *attr,
			   char *buf)
{
	struct push_switch_platform_info *psw_info = dev->platform_data;
	return sprintf(buf, "%s\n", psw_info->name);
}
static DEVICE_ATTR(switch, S_IRUGO, switch_show, NULL);

static void switch_timer(unsigned long data)
{
	struct push_switch *psw = (struct push_switch *)data;

	schedule_work(&psw->work);
}

static void switch_work_handler(struct work_struct *work)
{
	struct push_switch *psw = container_of(work, struct push_switch, work);
	struct platform_device *pdev = psw->pdev;

	psw->state = 0;

	kobject_uevent(&pdev->dev.kobj, KOBJ_CHANGE);
}

static int switch_drv_probe(struct platform_device *pdev)
{
	struct push_switch_platform_info *psw_info;
	struct push_switch *psw;
	int ret, irq;

	psw = kzalloc(sizeof(struct push_switch), GFP_KERNEL);
	if (unlikely(!psw))
		return -ENOMEM;

	irq = platform_get_irq(pdev, 0);
	if (unlikely(irq < 0)) {
		ret = -ENODEV;
		goto err;
	}

	psw_info = pdev->dev.platform_data;
	BUG_ON(!psw_info);

	ret = request_irq(irq, psw_info->irq_handler,
			  IRQF_DISABLED | psw_info->irq_flags,
			  psw_info->name ? psw_info->name : DRV_NAME, pdev);
	if (unlikely(ret < 0))
		goto err;

	if (psw_info->name) {
		ret = device_create_file(&pdev->dev, &dev_attr_switch);
		if (unlikely(ret)) {
			dev_err(&pdev->dev, "Failed creating device attrs\n");
			ret = -EINVAL;
			goto err_irq;
		}
	}

	INIT_WORK(&psw->work, switch_work_handler);
	init_timer(&psw->debounce);

	psw->debounce.function = switch_timer;
	psw->debounce.data = (unsigned long)psw;

	/* Workqueue API brain-damage */
	psw->pdev = pdev;

	platform_set_drvdata(pdev, psw);

	return 0;

err_irq:
	free_irq(irq, pdev);
err:
	kfree(psw);
	return ret;
}

static int switch_drv_remove(struct platform_device *pdev)
{
	struct push_switch *psw = platform_get_drvdata(pdev);
	struct push_switch_platform_info *psw_info = pdev->dev.platform_data;
	int irq = platform_get_irq(pdev, 0);

	if (psw_info->name)
		device_remove_file(&pdev->dev, &dev_attr_switch);

	platform_set_drvdata(pdev, NULL);
	flush_scheduled_work();
	del_timer_sync(&psw->debounce);
	free_irq(irq, pdev);

	kfree(psw);

	return 0;
}

static struct platform_driver switch_driver = {
	.probe		= switch_drv_probe,
	.remove		= switch_drv_remove,
	.driver		= {
		.name	= DRV_NAME,
	},
};

static int __init switch_init(void)
{
	printk(KERN_NOTICE DRV_NAME ": version %s loaded\n", DRV_VERSION);
	return platform_driver_register(&switch_driver);
}

static void __exit switch_exit(void)
{
	platform_driver_unregister(&switch_driver);
}
module_init(switch_init);
module_exit(switch_exit);

MODULE_VERSION(DRV_VERSION);
MODULE_AUTHOR("Paul Mundt");
MODULE_LICENSE("GPL v2");