x86/irq: Make irq activate operations symmetric

The recent commit which prevents double activation of interrupts unearthed
interesting code in x86. The code (ab)uses irq_domain_activate_irq() to
reconfigure an already activated interrupt. That trips over the prevention
code now.

Fix it by deactivating the interrupt before activating the new configuration.

Fixes: 08d85f3ea99f1 "irqdomain: Avoid activating interrupts more than once"
Reported-and-tested-by: Mike Galbraith <efault@gmx.de>
Reported-and-tested-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: stable@vger.kernel.org
Link: http://lkml.kernel.org/r/alpine.DEB.2.20.1701311901580.3457@nanos

path: root/sound/soc/samsung/idma.h

/*
 * sound/soc/samsung/idma.h
 *
 * Copyright (c) 2011 Samsung Electronics Co., Ltd
 *		http://www.samsung.com
 *
 *  This program is free software; you can redistribute  it and/or modify it
 *  under  the terms of  the GNU General  Public License as published by the
 *  Free Software Foundation;  either version 2 of the  License, or (at your
 *  option) any later version.
 *
 */

#ifndef __SND_SOC_SAMSUNG_IDMA_H_
#define __SND_SOC_SAMSUNG_IDMA_H_

extern void idma_reg_addr_init(void __iomem *regs, dma_addr_t addr);

/* dma_state */
#define LPAM_DMA_STOP	0
#define LPAM_DMA_START	1

#define MAX_IDMA_PERIOD (128 * 1024)
#define MAX_IDMA_BUFFER (160 * 1024)

#endif /* __SND_SOC_SAMSUNG_IDMA_H_ */