linux-kernel - [PATCH] hard_smp_processor_id definition for UP systems without APIC (i386)

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Date:	Fri, 02 Mar 2007 17:16:56 +0900
From:	Fernando Luis Vázquez Cao 
	<fernando@....ntt.co.jp>
To:	vgoyal@...ibm.com
Cc:	Benjamin LaHaise <bcrl@...ck.org>, ebiederm@...ssion.com,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	fastboot@...ts.osdl.org, ak@...e.de, akpm@...ux-foundation.org,
	judith@...ux-foundation.org
Subject: [PATCH] hard_smp_processor_id definition for UP systems without
	APIC (i386)

Provide hard_smp_processor_id definition also for non apic case.

Signed-off-by: Fernando Luis Vazquez Cao <fernando@....ntt.co.jp>
---

diff -urNp linux-2.6.21-rc2-orig/include/asm-i386/smp.h linux-2.6.21-rc2/include/asm-i386/smp.h
--- linux-2.6.21-rc2-orig/include/asm-i386/smp.h	2007-03-02 16:47:37.000000000 +0900
+++ linux-2.6.21-rc2/include/asm-i386/smp.h	2007-03-02 16:59:42.000000000 +0900
@@ -93,6 +93,7 @@ extern unsigned int num_processors;
 #ifndef __ASSEMBLY__
 
 #ifdef CONFIG_X86_LOCAL_APIC
+
 #ifdef APIC_DEFINITION
 extern int hard_smp_processor_id(void);
 #else
@@ -103,6 +104,13 @@ static inline int hard_smp_processor_id(
 	return GET_APIC_ID(*(unsigned long *)(APIC_BASE+APIC_ID));
 }
 #endif /* APIC_DEFINITION */
+
+#else /* CONFIG_X86_LOCAL_APIC */
+
+#ifndef CONFIG_SMP
+#define hard_smp_processor_id()		0
+#endif
+
 #endif /* CONFIG_X86_LOCAL_APIC */
 
 extern u8 apicid_2_node[];


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