add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/platform/x86/mxm-wmi.c
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@@ -1,21 +1,8 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * MXM WMI driver
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  *
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  * Copyright(C) 2010 Red Hat.
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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
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- *  (at 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,
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- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
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- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- *  GNU General Public License for more details.
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- *
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- *  You should have received a copy of the GNU General Public License
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- *  along with this program; if not, write to the Free Software
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- *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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  */
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 #include <linux/kernel.h>
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 #include <linux/module.h>
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@@ -48,13 +35,11 @@
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 		.xarg = 1,
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 	};
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 	struct acpi_buffer input = { (acpi_size)sizeof(args), &args };
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-	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
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 	acpi_status status;
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 	printk("calling mux switch %d\n", adapter);
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-	status = wmi_evaluate_method(MXM_WMMX_GUID, 0x0, adapter, &input,
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-				     &output);
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+	status = wmi_evaluate_method(MXM_WMMX_GUID, 0x0, adapter, &input, NULL);
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 	if (ACPI_FAILURE(status))
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 		return status;
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@@ -73,13 +58,11 @@
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 		.xarg = 1,
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 	};
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 	struct acpi_buffer input = { (acpi_size)sizeof(args), &args };
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-	struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL };
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 	acpi_status status;
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 	printk("calling mux switch %d\n", adapter);
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-	status = wmi_evaluate_method(MXM_WMMX_GUID, 0x0, adapter, &input,
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-				     &output);
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+	status = wmi_evaluate_method(MXM_WMMX_GUID, 0x0, adapter, &input, NULL);
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 	if (ACPI_FAILURE(status))
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 		return status;