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44 lines
1.0 KiB
44 lines
1.0 KiB
// 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, "IOSM_EVENT=%s", 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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