kernel.h File Reference

#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>

Go to the source code of this file.

Macros
#define	DIV_ROUND_UP(n, d)   (((n) + (d) - 1) / (d))
#define	PERF_ALIGN(x, a)   __PERF_ALIGN_MASK(x, (typeof(x))(a)-1)
#define	__PERF_ALIGN_MASK(x, mask)   (((x)+(mask))&~(mask))
#define	offsetof(TYPE, MEMBER)   ((size_t) &((TYPE *)0)->MEMBER)
#define	container_of(ptr, type, member)
#define	BUILD_BUG_ON_ZERO(e)   (sizeof(struct { int:-!!(e); }))
#define	max(x, y)
#define	min(x, y)
#define	roundup(x, y)
#define	BUG_ON(cond)   assert(!(cond))
#define	cpu_to_le64(x)   (x)
#define	cpu_to_le32(x)   (x)
#define	pr_fmt(fmt)   fmt
#define	pr_err(fmt,...)   eprintf(0, pr_fmt(fmt), ##__VA_ARGS__)
#define	pr_warning(fmt,...)   eprintf(0, pr_fmt(fmt), ##__VA_ARGS__)
#define	pr_info(fmt,...)   eprintf(0, pr_fmt(fmt), ##__VA_ARGS__)
#define	pr_debug(fmt,...)   eprintf(1, pr_fmt(fmt), ##__VA_ARGS__)
#define	pr_debugN(n, fmt,...)   eprintf(n, pr_fmt(fmt), ##__VA_ARGS__)
#define	pr_debug2(fmt,...)   pr_debugN(2, pr_fmt(fmt), ##__VA_ARGS__)
#define	pr_debug3(fmt,...)   pr_debugN(3, pr_fmt(fmt), ##__VA_ARGS__)
#define	pr_debug4(fmt,...)   pr_debugN(4, pr_fmt(fmt), ##__VA_ARGS__)
#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))

Functions
int	eprintf (int level, const char *fmt,...) __attribute__((format(printf

Macro Definition Documentation

#define __PERF_ALIGN_MASK	(		x,
			mask
	)		(((x)+(mask))&~(mask))

Definition at line 12 of file kernel.h.

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

Definition at line 130 of file kernel.h.

#define BUG_ON

(

cond

)

assert(!(cond))

Definition at line 62 of file kernel.h.

#define BUILD_BUG_ON_ZERO

(

e

)

(sizeof(struct { int:-!!(e); }))

Definition at line 31 of file kernel.h.

#define container_of	(		ptr,
			type,
			member
	)

Value:

({          \
    const typeof(((type *)0)->member) * __mptr = (ptr); \
    (type *)((char *)__mptr - offsetof(type, member)); })

container_of - cast a member of a structure out to the containing structure : the pointer to the member. : the type of the container struct this is embedded in. : the name of the member within the struct.

Definition at line 26 of file kernel.h.

#define cpu_to_le32

(

x

)

(x)

Definition at line 71 of file kernel.h.

#define cpu_to_le64

(

x

)

(x)

Definition at line 70 of file kernel.h.

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

Definition at line 9 of file kernel.h.

#define max	(		x,
			y
	)

Value:

({              \
    typeof(x) _max1 = (x);          \
    typeof(y) _max2 = (y);          \
    (void) (&_max1 == &_max2);      \
    _max1 > _max2 ? _max1 : _max2; })

Definition at line 34 of file kernel.h.

#define min	(		x,
			y
	)

Value:

({              \
    typeof(x) _min1 = (x);          \
    typeof(y) _min2 = (y);          \
    (void) (&_min1 == &_min2);      \
    _min1 < _min2 ? _min1 : _min2; })

Definition at line 42 of file kernel.h.

#define offsetof	(		TYPE,
			MEMBER
	)		((size_t) &((TYPE *)0)->MEMBER)

Definition at line 15 of file kernel.h.

#define PERF_ALIGN	(		x,
			a
	)		__PERF_ALIGN_MASK(x, (typeof(x))(a)-1)

Definition at line 11 of file kernel.h.

#define pr_debug	(		fmt,
			...
	)		eprintf(1, pr_fmt(fmt), ##__VA_ARGS__)

Definition at line 116 of file kernel.h.

#define pr_debug2	(		fmt,
			...
	)		pr_debugN(2, pr_fmt(fmt), ##__VA_ARGS__)

Definition at line 120 of file kernel.h.

#define pr_debug3	(		fmt,
			...
	)		pr_debugN(3, pr_fmt(fmt), ##__VA_ARGS__)

Definition at line 121 of file kernel.h.

#define pr_debug4	(		fmt,
			...
	)		pr_debugN(4, pr_fmt(fmt), ##__VA_ARGS__)

Definition at line 122 of file kernel.h.

#define pr_debugN	(		n,
			fmt,
			...
	)		eprintf(n, pr_fmt(fmt), ##__VA_ARGS__)

Definition at line 118 of file kernel.h.

#define pr_err	(		fmt,
			...
	)		eprintf(0, pr_fmt(fmt), ##__VA_ARGS__)

Definition at line 110 of file kernel.h.

#define pr_fmt

(

fmt

)

fmt

Definition at line 107 of file kernel.h.

#define pr_info	(		fmt,
			...
	)		eprintf(0, pr_fmt(fmt), ##__VA_ARGS__)

Definition at line 114 of file kernel.h.

#define pr_warning	(		fmt,
			...
	)		eprintf(0, pr_fmt(fmt), ##__VA_ARGS__)

Definition at line 112 of file kernel.h.

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

Definition at line 132 of file kernel.h.

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

Definition at line 131 of file kernel.h.

#define roundup	(		x,
			y
	)

Value:

(                                \
{                                                      \
    const typeof(y) __y = y;               \
    (((x) + (__y - 1)) / __y) * __y;           \
}                                                      \
)

Definition at line 50 of file kernel.h.

Function Documentation

int eprintf	(	int	level,
		const char *	fmt,
			...
	)