linux-kernel - [PATCH 1/9] [PATCH] x86: surround hard_smp_processor_id in APIC

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Message-Id: <12066375694072-git-send-email-gcosta@redhat.com>
Date:	Thu, 27 Mar 2008 14:05:56 -0300
From:	Glauber Costa <gcosta@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	akpm@...ux-foundation.org, glommer@...il.com, mingo@...e.hu,
	tglx@...utronix.de, Glauber Costa <gcosta@...hat.com>
Subject: [PATCH 1/9] [PATCH] x86: surround hard_smp_processor_id in APIC_DEFINITION

APIC_DEFINITION is not defined in x86_64, so in practice, we keep
our old code here. But as a nice side effect, the code is now
equal to smp_32.h.

Signed-off-by: Glauber Costa <gcosta@...hat.com>
---
 include/asm-x86/smp_64.h |    6 +++++-
 1 files changed, 5 insertions(+), 1 deletions(-)

diff --git a/include/asm-x86/smp_64.h b/include/asm-x86/smp_64.h
index c53a011..2520633 100644
--- a/include/asm-x86/smp_64.h
+++ b/include/asm-x86/smp_64.h
@@ -52,12 +52,16 @@ static inline int logical_smp_processor_id(void)
 	return GET_APIC_LOGICAL_ID(*(u32 *)(APIC_BASE + APIC_LDR));
 }
 
-#include <mach_apicdef.h>
+# ifdef APIC_DEFINITION
+extern int hard_smp_processor_id(void);
+# else
+#  include <mach_apicdef.h>
 static inline int hard_smp_processor_id(void)
 {
 	/* we don't want to mark this access volatile - bad code generation */
 	return GET_APIC_ID(*(u32 *)(APIC_BASE + APIC_ID));
 }
+# endif /* APIC_DEFINITION */
 
 #endif
 
-- 
1.5.0.6

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