* Simple spin lock operations. There are two variants, one clears IRQ's
* on the local processor, one does not.
*
- * These are fair FIFO ticket locks, which are currently limited to 256
- * CPUs.
+ * These are fair FIFO ticket locks, which support up to 2^16 CPUs.
*
* (the type definitions are in asm/spinlock_types.h)
*/
#ifdef CONFIG_X86_32
# define LOCK_PTR_REG "a"
-# define REG_PTR_MODE "k"
#else
# define LOCK_PTR_REG "D"
-# define REG_PTR_MODE "q"
#endif
#if defined(CONFIG_X86_32) && \