add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/xen/xen-acpi-memhotplug.c
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@@ -1,18 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * Copyright (C) 2012 Intel Corporation
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  *    Author: Liu Jinsong <jinsong.liu@intel.com>
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  *    Author: Jiang Yunhong <yunhong.jiang@intel.com>
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License as published by
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- * the Free Software Foundation; either version 2 of the License, or (at
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- * your option) any later version.
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- *
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- * This program is distributed in the hope that it will be useful, but
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- * WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
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- * NON INFRINGEMENT.  See the GNU General Public License for more
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- * details.
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  */
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 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
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@@ -239,7 +229,7 @@
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 	case ACPI_NOTIFY_BUS_CHECK:
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 		ACPI_DEBUG_PRINT((ACPI_DB_INFO,
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 			"\nReceived BUS CHECK notification for device\n"));
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-		/* Fall Through */
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+		fallthrough;
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 	case ACPI_NOTIFY_DEVICE_CHECK:
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 		if (event == ACPI_NOTIFY_DEVICE_CHECK)
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 			ACPI_DEBUG_PRINT((ACPI_DB_INFO,