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Commit 4cc4587f authored by Andreas Schwab's avatar Andreas Schwab Committed by Benjamin Herrenschmidt
Browse files

via-pmu: Add compat_pmu_ioctl 



The ioctls are actually compatible, but due to historical mistake the
numbers differ between 32bit and 64bit.

Signed-off-by: default avatarAndreas Schwab <schwab@linux-m68k.org>
Acked-by: default avatarArnd Bergmann <arnd@arndb.de>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent bcc30d37

drivers/macintosh/via-pmu.c

+42 −0
Original line number Diff line number Diff line
@@ -45,6 +45,7 @@ 
#include <linux/syscalls.h>

#include <linux/suspend.h>

#include <linux/cpu.h>

#include <linux/compat.h>

#include <asm/prom.h>

#include <asm/machdep.h>

#include <asm/io.h>
@@ -2349,11 +2350,52 @@ static long pmu_unlocked_ioctl(struct file *filp, 
	return ret;

}



#ifdef CONFIG_COMPAT

#define PMU_IOC_GET_BACKLIGHT32	_IOR('B', 1, compat_size_t)

#define PMU_IOC_SET_BACKLIGHT32	_IOW('B', 2, compat_size_t)

#define PMU_IOC_GET_MODEL32	_IOR('B', 3, compat_size_t)

#define PMU_IOC_HAS_ADB32	_IOR('B', 4, compat_size_t)

#define PMU_IOC_CAN_SLEEP32	_IOR('B', 5, compat_size_t)

#define PMU_IOC_GRAB_BACKLIGHT32 _IOR('B', 6, compat_size_t)



static long compat_pmu_ioctl (struct file *filp, u_int cmd, u_long arg)

{

	switch (cmd) {

	case PMU_IOC_SLEEP:

		break;

	case PMU_IOC_GET_BACKLIGHT32:

		cmd = PMU_IOC_GET_BACKLIGHT;

		break;

	case PMU_IOC_SET_BACKLIGHT32:

		cmd = PMU_IOC_SET_BACKLIGHT;

		break;

	case PMU_IOC_GET_MODEL32:

		cmd = PMU_IOC_GET_MODEL;

		break;

	case PMU_IOC_HAS_ADB32:

		cmd = PMU_IOC_HAS_ADB;

		break;

	case PMU_IOC_CAN_SLEEP32:

		cmd = PMU_IOC_CAN_SLEEP;

		break;

	case PMU_IOC_GRAB_BACKLIGHT32:

		cmd = PMU_IOC_GRAB_BACKLIGHT;

		break;

	default:

		return -ENOIOCTLCMD;

	}

	return pmu_unlocked_ioctl(filp, cmd, (unsigned long)compat_ptr(arg));

}

#endif



static const struct file_operations pmu_device_fops = {

	.read		= pmu_read,

	.write		= pmu_write,

	.poll		= pmu_fpoll,

	.unlocked_ioctl	= pmu_unlocked_ioctl,

#ifdef CONFIG_COMPAT

	.compat_ioctl	= compat_pmu_ioctl,

#endif

	.open		= pmu_open,

	.release	= pmu_release,

};