[PATCH] x86: fix x86 cpuid keys used in alternative_smp()

By hard-coding the cpuid keys for alternative_smp() rather than using
the symbolic constant it turned out that incorrect values were used on
both i386 (0x68 instead of 0x69) and x86-64 (0x66 instead of 0x68).
Signed-off-by: Jan Beulich <jbeulich@novell.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-i386/alternative.h

@@ -116,7 +116,7 @@ static inline void alternatives_smp_switch(int smp) {}
 		      "  .align 4\n"					\
 		      "  .long 661b\n"            /* label */		\
 		      "  .long 663f\n"		  /* new instruction */	\
-		      "  .byte 0x68\n"            /* X86_FEATURE_UP */	\
+		      "  .byte " __stringify(X86_FEATURE_UP) "\n"	\
 		      "  .byte 662b-661b\n"       /* sourcelen */	\
 		      "  .byte 664f-663f\n"       /* replacementlen */	\
 		      ".previous\n"					\

include/asm-x86_64/alternative.h

@@ -4,6 +4,7 @@
 #ifdef __KERNEL__
 
 #include <linux/types.h>
+#include <asm/cpufeature.h>
 
 struct alt_instr {
 	u8 *instr; 		/* original instruction */
@@ -130,7 +131,7 @@ static inline void alternatives_smp_switch(int smp) {}
 		      "  .align 8\n"					\
 		      "  .quad 661b\n"            /* label */		\
 		      "  .quad 663f\n"		  /* new instruction */	\
-		      "  .byte 0x66\n"            /* X86_FEATURE_UP */	\
+		      "  .byte " __stringify(X86_FEATURE_UP) "\n"	\
 		      "  .byte 662b-661b\n"       /* sourcelen */	\
 		      "  .byte 664f-663f\n"       /* replacementlen */	\
 		      ".previous\n"					\