i386: conditionalize inclusion of some MTRR flavors From: "Jan Beulich" Avoid inclusion of code that's dead for x86-64. Signed-off-by: Jan Beulich Signed-off-by: Andi Kleen --- arch/i386/kernel/cpu/mtrr/Makefile | 4 +--- arch/i386/kernel/cpu/mtrr/main.c | 6 ++++++ 2 files changed, 7 insertions(+), 3 deletions(-) Index: linux/arch/i386/kernel/cpu/mtrr/Makefile =================================================================== --- linux.orig/arch/i386/kernel/cpu/mtrr/Makefile +++ linux/arch/i386/kernel/cpu/mtrr/Makefile @@ -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 Index: linux/arch/i386/kernel/cpu/mtrr/main.c =================================================================== --- linux.orig/arch/i386/kernel/cpu/mtrr/main.c +++ linux/arch/i386/kernel/cpu/mtrr/main.c @@ -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