radix tree test suite: Reduce kernel.h

/* An empty file stub that allows radix-tree.c to compile. */

#define __init

#ifndef _KERNEL_H

#define _KERNEL_H

#include <assert.h>

#include "../../include/linux/kernel.h"

#include <string.h>

#include <stdio.h>

#include <stddef.h>

#include <limits.h>

#include <linux/compiler.h>

#define RADIX_TREE_MAP_SHIFT	3

#endif

#ifndef NULL

#define NULL	0

#endif

#define BUG_ON(expr)	assert(!(expr))

#define __init

#define __must_check

#define panic(expr)

#define printk printf

#define __force

#define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))

#define pr_debug printk

#define smp_rmb()	barrier()

#define smp_wmb()	barrier()

#define cpu_relax()	barrier()

#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))

#define container_of(ptr, type, member) ({                      \

	const typeof( ((type *)0)->member ) *__mptr = (ptr);    \

	(type *)( (char *)__mptr - offsetof(type, member) );})

#define min(a, b) ((a) < (b) ? (a) : (b))

#define cond_resched()	sched_yield()

static inline int in_interrupt(void)

{

	return 0;

}

/*

 * This looks more complex than it should be. But we need to

 * get the type for the ~ right in round_down (it needs to be

 * as wide as the result!), and we want to evaluate the macro

 * arguments just once each.

 */

#define __round_mask(x, y) ((__typeof__(x))((y)-1))

#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)

#define round_down(x, y) ((x) & ~__round_mask(x, y))

#define xchg(ptr, x)	uatomic_xchg(ptr, x)

#endif /* _KERNEL_H */

#ifndef __LINUX_PREEMPT_H

#define __LINUX_PREEMPT_H

extern int preempt_count;

#define preempt_disable()	uatomic_inc(&preempt_count)

#define preempt_enable()	uatomic_dec(&preempt_count)

static inline int in_interrupt(void)

{

	return 0;

}

#endif /* __LINUX_PREEMPT_H */