[PATCH] cpuid takes unsigned arguments

Because Xen is compiled with -Wall -Werror, has inherited processor.h from
Linux and Fedora is now built with gcc4, I discovered this bug.

The few callers I verified all call cpuid with unsigned ints, but the
function is defined with signed ints.  This trivial patch fixes that.
Signed-off-by: Rik van Riel <riel@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

include/asm-i386/processor.h

@@ -137,7 +137,7 @@ static inline void detect_ht(struct cpuinfo_x86 *c) {}
  * clear %ecx since some cpus (Cyrix MII) do not set or clear %ecx
  * resulting in stale register contents being returned.
  */
-static inline void cpuid(int op, int *eax, int *ebx, int *ecx, int *edx)
+static inline void cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, unsigned int *ecx, unsigned int *edx)
 {
 	__asm__("cpuid"
 		: "=a" (*eax),