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From: "Rafael J. Wysocki" <rjw@rjwysocki.net>
To: x86 Maintainers <x86@kernel.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
 "Rafael J. Wysocki" <rafael@kernel.org>,
 Thomas Gleixner <tglx@linutronix.de>,
 Dave Hansen <dave.hansen@linux.intel.com>, Borislav Petkov <bp@alien8.de>
Subject: [PATCH v1] arch: x86: kernel: Remove leftover contents of topology.c
Date: Mon, 18 Mar 2024 19:12:45 +0100
Message-ID: <12422874.O9o76ZdvQC@kreacher>
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From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

The only useful piece of arch/x86/kernel/topology.c is the definition
of arch_cpu_is_hotpluggable() that can be moved elsewhere (other
architectures tend to put it into setup.c), so do that and delete
the rest of the file.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
 arch/x86/kernel/Makefile   |    2 +-
 arch/x86/kernel/setup.c    |    8 ++++++++
 arch/x86/kernel/topology.c |   43 -------------------------------------------
 3 files changed, 9 insertions(+), 44 deletions(-)

Index: linux-pm/arch/x86/kernel/setup.c
===================================================================
--- linux-pm.orig/arch/x86/kernel/setup.c
+++ linux-pm/arch/x86/kernel/setup.c
@@ -7,6 +7,7 @@
  */
 #include <linux/acpi.h>
 #include <linux/console.h>
+#include <linux/cpu.h>
 #include <linux/crash_dump.h>
 #include <linux/dma-map-ops.h>
 #include <linux/dmi.h>
@@ -1222,3 +1223,10 @@ static int __init register_kernel_offset
 	return 0;
 }
 __initcall(register_kernel_offset_dumper);
+
+#ifdef CONFIG_HOTPLUG_CPU
+bool arch_cpu_is_hotpluggable(int cpu)
+{
+	return cpu > 0;
+}
+#endif /* CONFIG_HOTPLUG_CPU */
Index: linux-pm/arch/x86/kernel/topology.c
===================================================================
--- linux-pm.orig/arch/x86/kernel/topology.c
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * Populate sysfs with topology information
- *
- * Written by: Matthew Dobson, IBM Corporation
- * Original Code: Paul Dorwin, IBM Corporation, Patrick Mochel, OSDL
- *
- * Copyright (C) 2002, IBM Corp.
- *
- * All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * 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, GOOD TITLE or
- * NON INFRINGEMENT.  See the GNU General Public License for more
- * details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- *
- * Send feedback to <colpatch@us.ibm.com>
- */
-#include <linux/interrupt.h>
-#include <linux/nodemask.h>
-#include <linux/export.h>
-#include <linux/mmzone.h>
-#include <linux/init.h>
-#include <linux/smp.h>
-#include <linux/irq.h>
-#include <asm/io_apic.h>
-#include <asm/cpu.h>
-
-#ifdef CONFIG_HOTPLUG_CPU
-bool arch_cpu_is_hotpluggable(int cpu)
-{
-	return cpu > 0;
-}
-#endif /* CONFIG_HOTPLUG_CPU */
Index: linux-pm/arch/x86/kernel/Makefile
===================================================================
--- linux-pm.orig/arch/x86/kernel/Makefile
+++ linux-pm/arch/x86/kernel/Makefile
@@ -60,7 +60,7 @@ obj-$(CONFIG_X86_64)	+= sys_x86_64.o
 obj-$(CONFIG_X86_ESPFIX64)	+= espfix_64.o
 obj-$(CONFIG_SYSFS)	+= ksysfs.o
 obj-y			+= bootflag.o e820.o
-obj-y			+= pci-dma.o quirks.o topology.o kdebugfs.o
+obj-y			+= pci-dma.o quirks.o kdebugfs.o
 obj-y			+= alternative.o i8253.o hw_breakpoint.o
 obj-y			+= tsc.o tsc_msr.o io_delay.o rtc.o
 obj-y			+= resource.o