[PATCH] x86-64: conditionalize inclusion of some MTRR flavors

From: Jan Beulich
Date: Wed Nov 15 2006 - 10:03:40 EST


Avoid inclusion of code that's dead for x86-64.

Signed-off-by: Jan Beulich <jbeulich@xxxxxxxxxx>

--- linux-2.6.19-rc5/arch/i386/kernel/cpu/mtrr/Makefile 2006-09-20 05:42:06.000000000 +0200
+++ 2.6.19-rc5-x86_64-mtrr/arch/i386/kernel/cpu/mtrr/Makefile 2006-11-09 13:38:13.000000000 +0100
@@ -1,5 +1,3 @@
obj-y := main.o if.o generic.o state.o
-obj-y += amd.o
-obj-y += cyrix.o
-obj-y += centaur.o
+obj-$(CONFIG_X86_32) += amd.o cyrix.o centaur.o

--- linux-2.6.19-rc5/arch/i386/kernel/cpu/mtrr/main.c 2006-09-20 05:42:06.000000000 +0200
+++ 2.6.19-rc5-x86_64-mtrr/arch/i386/kernel/cpu/mtrr/main.c 2006-11-10 08:56:35.000000000 +0100
@@ -59,7 +59,11 @@ struct mtrr_ops * mtrr_if = NULL;
static void set_mtrr(unsigned int reg, unsigned long base,
unsigned long size, mtrr_type type);

+#ifndef CONFIG_X86_64
extern int arr3_protected;
+#else
+#define arr3_protected 0
+#endif

void set_mtrr_ops(struct mtrr_ops * ops)
{
@@ -544,9 +548,11 @@ extern void centaur_init_mtrr(void);

static void __init init_ifs(void)
{
+#ifndef CONFIG_X86_64
amd_init_mtrr();
cyrix_init_mtrr();
centaur_init_mtrr();
+#endif
}

/* The suspend/resume methods are only for CPU without MTRR. CPU using generic


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