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45 lines
1.0 KiB
C
45 lines
1.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright (C) 2020-21 Intel Corporation.
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*/
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#include <linux/device.h>
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#include <linux/kobject.h>
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#include <linux/slab.h>
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#include "iosm_ipc_uevent.h"
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/* Update the uevent in work queue context */
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static void ipc_uevent_work(struct work_struct *data)
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{
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struct ipc_uevent_info *info;
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char *envp[2] = { NULL, NULL };
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info = container_of(data, struct ipc_uevent_info, work);
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envp[0] = info->uevent;
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if (kobject_uevent_env(&info->dev->kobj, KOBJ_CHANGE, envp))
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pr_err("uevent %s failed to sent", info->uevent);
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kfree(info);
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}
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void ipc_uevent_send(struct device *dev, char *uevent)
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{
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struct ipc_uevent_info *info = kzalloc(sizeof(*info), GFP_ATOMIC);
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if (!info)
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return;
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/* Initialize the kernel work queue */
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INIT_WORK(&info->work, ipc_uevent_work);
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/* Store the device and event information */
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info->dev = dev;
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snprintf(info->uevent, MAX_UEVENT_LEN, "%s: %s", dev_name(dev), uevent);
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/* Schedule uevent in process context using work queue */
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schedule_work(&info->work);
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}
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