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Revision 80ef4464d5e27408685e609d389663aad46644b9 authored by Robert Richter on 20 March 2019, 18:57:23 UTC, committed by Joerg Roedel on 22 March 2019, 11:01:58 UTC 
iommu/iova: Fix tracking of recently failed iova address
 
If a 32 bit allocation request is too big to possibly succeed, it
early exits with a failure and then should never update max32_alloc_
size. This patch fixes current code, now the size is only updated if
the slow path failed while walking the tree. Without the fix the
allocation may enter the slow path again even if there was a failure
before of a request with the same or a smaller size.

Cc: <stable@vger.kernel.org> # 4.20+
Fixes: bee60e94a1e2 ("iommu/iova: Optimise attempts to allocate iova from 32bit address range")
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Robert Richter <rrichter@marvell.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
1 parent 4e50ce0
Raw File
hid-roccat-savu.h 
#ifndef __HID_ROCCAT_SAVU_H
#define __HID_ROCCAT_SAVU_H

/*
 * Copyright (c) 2012 Stefan Achatz <erazor_de@users.sourceforge.net>
 */

/*
 * 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.
 */

#include <linux/types.h>

struct savu_mouse_report_special {
	uint8_t report_number; /* always 3 */
	uint8_t zero;
	uint8_t type;
	uint8_t data[2];
} __packed;

enum {
	SAVU_MOUSE_REPORT_NUMBER_SPECIAL = 3,
};

enum savu_mouse_report_button_types {
	/* data1 = new profile range 1-5 */
	SAVU_MOUSE_REPORT_BUTTON_TYPE_PROFILE = 0x20,

	/* data1 = button number range 1-24; data2 = action */
	SAVU_MOUSE_REPORT_BUTTON_TYPE_QUICKLAUNCH = 0x60,

	/* data1 = button number range 1-24; data2 = action */
	SAVU_MOUSE_REPORT_BUTTON_TYPE_TIMER = 0x80,

	/* data1 = setting number range 1-5 */
	SAVU_MOUSE_REPORT_BUTTON_TYPE_CPI = 0xb0,

	/* data1 and data2 = range 0x1-0xb */
	SAVU_MOUSE_REPORT_BUTTON_TYPE_SENSITIVITY = 0xc0,

	/* data1 = 22 = next track...
	 * data2 = action
	 */
	SAVU_MOUSE_REPORT_BUTTON_TYPE_MULTIMEDIA = 0xf0,
};

struct savu_roccat_report {
	uint8_t type;
	uint8_t data[2];
} __packed;

#endif
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