add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/x86/xen/platform-pci-unplug.c
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@@ -1,28 +1,17 @@
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+// SPDX-License-Identifier: GPL-2.0
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+
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 /******************************************************************************
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  * platform-pci-unplug.c
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  *
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  * Xen platform PCI device driver
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  * Copyright (c) 2010, Citrix
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms and conditions of the GNU General Public License,
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- * version 2, as published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope it will be useful, but WITHOUT
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- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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- * more details.
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- *
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- * You should have received a copy of the GNU General Public License along with
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- * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
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- * Place - Suite 330, Boston, MA 02111-1307 USA.
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- *
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  */
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 #include <linux/init.h>
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 #include <linux/io.h>
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 #include <linux/export.h>
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+#include <xen/xen.h>
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 #include <xen/platform_pci.h>
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 #include "xen-ops.h"
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@@ -30,7 +19,6 @@
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 #define XEN_PLATFORM_ERR_PROTOCOL -2
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 #define XEN_PLATFORM_ERR_BLACKLIST -3
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-#ifdef CONFIG_XEN_PVHVM
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 /* store the value of xen_emul_unplug after the unplug is done */
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 static int xen_platform_pci_unplug;
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 static int xen_emul_unplug;
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@@ -218,4 +206,3 @@
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 	return 0;
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 }
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 early_param("xen_emul_unplug", parse_xen_emul_unplug);
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-#endif