Revision 64b4c411a6c7a5f27555bfc2d6310b87bde3db67 authored by Andrew Morton on 21 October 2022, 04:19:22 UTC, committed by Andrew Morton on 28 October 2022, 20:37:22 UTC
These percpu counters are referenced in free_ipcs->freeque, so destroy
them later.

Fixes: 72d1e611082e ("ipc/msg: mitigate the lock contention with percpu counter")
Reported-by: syzbot+96e659d35b9d6b541152@syzkaller.appspotmail.com
Tested-by: Mark Rutland <mark.rutland@arm.com>
Cc: Jiebin Sun <jiebin.sun@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
1 parent 27d676a
Raw File
sys_soc.h
/* SPDX-License-Identifier: GPL-2.0-only */
/*
 * Copyright (C) ST-Ericsson SA 2011
 * Author: Lee Jones <lee.jones@linaro.org> for ST-Ericsson.
 */
#ifndef __SOC_BUS_H
#define __SOC_BUS_H

#include <linux/device.h>

struct soc_device_attribute {
	const char *machine;
	const char *family;
	const char *revision;
	const char *serial_number;
	const char *soc_id;
	const void *data;
	const struct attribute_group *custom_attr_group;
};

/**
 * soc_device_register - register SoC as a device
 * @soc_plat_dev_attr: Attributes passed from platform to be attributed to a SoC
 */
struct soc_device *soc_device_register(
	struct soc_device_attribute *soc_plat_dev_attr);

/**
 * soc_device_unregister - unregister SoC device
 * @dev: SoC device to be unregistered
 */
void soc_device_unregister(struct soc_device *soc_dev);

/**
 * soc_device_to_device - helper function to fetch struct device
 * @soc: Previously registered SoC device container
 */
struct device *soc_device_to_device(struct soc_device *soc);

#ifdef CONFIG_SOC_BUS
const struct soc_device_attribute *soc_device_match(
	const struct soc_device_attribute *matches);
#else
static inline const struct soc_device_attribute *soc_device_match(
	const struct soc_device_attribute *matches) { return NULL; }
#endif

#endif /* __SOC_BUS_H */
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