diff -drupN a/drivers/misc/logger.h b/drivers/misc/logger.h
--- a/drivers/misc/logger.h	1970-01-01 03:00:00.000000000 +0300
+++ b/drivers/misc/logger.h	2022-06-09 05:02:30.000000000 +0300
@@ -0,0 +1,89 @@
+/* include/linux/logger.h
+ *
+ * Copyright (C) 2007-2008 Google, Inc.
+ * Author: Robert Love <rlove@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _LINUX_LOGGER_H
+#define _LINUX_LOGGER_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+/**
+ * struct user_logger_entry_compat - defines a single entry that is given to a logger
+ * @len:	The length of the payload
+ * @__pad:	Two bytes of padding that appear to be required
+ * @pid:	The generating process' process ID
+ * @tid:	The generating process' thread ID
+ * @sec:	The number of seconds that have elapsed since the Epoch
+ * @nsec:	The number of nanoseconds that have elapsed since @sec
+ * @msg:	The message that is to be logged
+ *
+ * The userspace structure for version 1 of the logger_entry ABI.
+ * This structure is returned to userspace unless the caller requests
+ * an upgrade to a newer ABI version.
+ */
+struct user_logger_entry_compat {
+	__u16		len;
+	__u16		__pad;
+	__s32		pid;
+	__s32		tid;
+	__s32		sec;
+	__s32		nsec;
+	char		msg[0];
+};
+
+/**
+ * struct logger_entry - defines a single entry that is given to a logger
+ * @len:	The length of the payload
+ * @hdr_size:	sizeof(struct logger_entry_v2)
+ * @pid:	The generating process' process ID
+ * @tid:	The generating process' thread ID
+ * @sec:	The number of seconds that have elapsed since the Epoch
+ * @nsec:	The number of nanoseconds that have elapsed since @sec
+ * @euid:	Effective UID of logger
+ * @msg:	The message that is to be logged
+ *
+ * The structure for version 2 of the logger_entry ABI.
+ * This structure is returned to userspace if ioctl(LOGGER_SET_VERSION)
+ * is called with version >= 2
+ */
+struct logger_entry {
+	__u16		len;
+	__u16		hdr_size;
+	__s32		pid;
+	__s32		tid;
+	__s32		sec;
+	__s32		nsec;
+	kuid_t		euid;
+	char		msg[0];
+};
+
+#define LOGGER_LOG_RADIO	"log_radio"	/* radio-related messages */
+#define LOGGER_LOG_EVENTS	"log_events"	/* system/hardware events */
+#define LOGGER_LOG_SYSTEM	"log_system"	/* system/framework messages */
+#define LOGGER_LOG_MAIN		"log_main"	/* everything else */
+
+#define LOGGER_ENTRY_MAX_PAYLOAD	4076
+
+#define __LOGGERIO	0xAE
+
+#define LOGGER_GET_LOG_BUF_SIZE		_IO(__LOGGERIO, 1) /* size of log */
+#define LOGGER_GET_LOG_LEN		_IO(__LOGGERIO, 2) /* used log len */
+#define LOGGER_GET_NEXT_ENTRY_LEN	_IO(__LOGGERIO, 3) /* next entry len */
+#define LOGGER_FLUSH_LOG		_IO(__LOGGERIO, 4) /* flush log */
+#define LOGGER_GET_VERSION		_IO(__LOGGERIO, 5) /* abi version */
+#define LOGGER_SET_VERSION		_IO(__LOGGERIO, 6) /* abi version */
+
+#endif /* _LINUX_LOGGER_H */