[linux-2.6-block.git] / include / linux / kasan-checks.h

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_KASAN_CHECKS_H
#define _LINUX_KASAN_CHECKS_H

#include <linux/types.h>

/*
 * __kasan_check_*: Always available when KASAN is enabled. This may be used
 * even in compilation units that selectively disable KASAN, but must use KASAN
 * to validate access to an address.   Never use these in header files!
 */
#ifdef CONFIG_KASAN
bool __kasan_check_read(const volatile void *p, unsigned int size);
bool __kasan_check_write(const volatile void *p, unsigned int size);
#else
static inline bool __kasan_check_read(const volatile void *p, unsigned int size)
{
	return true;
}
static inline bool __kasan_check_write(const volatile void *p, unsigned int size)
{
	return true;
}
#endif

/*
 * kasan_check_*: Only available when the particular compilation unit has KASAN
 * instrumentation enabled. May be used in header files.
 */
#ifdef __SANITIZE_ADDRESS__
#define kasan_check_read __kasan_check_read
#define kasan_check_write __kasan_check_write
#else
static inline bool kasan_check_read(const volatile void *p, unsigned int size)
{
	return true;
}
static inline bool kasan_check_write(const volatile void *p, unsigned int size)
{
	return true;
}
#endif

#endif
Commit	Line	Data
b2441318	1	/* SPDX-License-Identifier: GPL-2.0 */
64f8ebaf AR	2	#ifndef _LINUX_KASAN_CHECKS_H
	3	#define _LINUX_KASAN_CHECKS_H
	4
b5f6e0fc ME	5	#include <linux/types.h>
b5f6e0fc ME	6
7d8ad890 ME	7	/*
	8	* __kasan_check_*: Always available when KASAN is enabled. This may be used
	9	* even in compilation units that selectively disable KASAN, but must use KASAN
	10	* to validate access to an address. Never use these in header files!
	11	*/
	12	#ifdef CONFIG_KASAN
b5f6e0fc ME	13	bool __kasan_check_read(const volatile void *p, unsigned int size);
b5f6e0fc ME	14	bool __kasan_check_write(const volatile void *p, unsigned int size);
7d8ad890	15	#else
b5f6e0fc ME	16	static inline bool __kasan_check_read(const volatile void *p, unsigned int size)
	17	{
	18	return true;
	19	}
	20	static inline bool __kasan_check_write(const volatile void *p, unsigned int size)
	21	{
	22	return true;
	23	}
7d8ad890 ME	24	#endif
	25
	26	/*
	27	* kasan_check_*: Only available when the particular compilation unit has KASAN
	28	* instrumentation enabled. May be used in header files.
	29	*/
	30	#ifdef __SANITIZE_ADDRESS__
	31	#define kasan_check_read __kasan_check_read
	32	#define kasan_check_write __kasan_check_write
64f8ebaf	33	#else
b5f6e0fc ME	34	static inline bool kasan_check_read(const volatile void *p, unsigned int size)
	35	{
	36	return true;
	37	}
	38	static inline bool kasan_check_write(const volatile void *p, unsigned int size)
	39	{
	40	return true;
	41	}
64f8ebaf AR	42	#endif
	43
	44	#endif