include/linux/unaligned.h

Source file repositories/reference/linux-study-clean/include/linux/unaligned.h

File Facts

System
Linux kernel
Corpus path
include/linux/unaligned.h
Extension
.h
Size
3211 bytes
Lines
147
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

#ifndef __LINUX_UNALIGNED_H
#define __LINUX_UNALIGNED_H

/*
 * This is the most generic implementation of unaligned accesses
 * and should work almost anywhere.
 */
#include <linux/unaligned/packed_struct.h>
#include <asm/byteorder.h>
#include <vdso/unaligned.h>

#define get_unaligned(ptr)	__get_unaligned_t(typeof(*(ptr)), (ptr))
#define put_unaligned(val, ptr) __put_unaligned_t(typeof(*(ptr)), (val), (ptr))

static inline u16 get_unaligned_le16(const void *p)
{
	return le16_to_cpu(__get_unaligned_t(__le16, p));
}

static inline u32 get_unaligned_le32(const void *p)
{
	return le32_to_cpu(__get_unaligned_t(__le32, p));
}

static inline u64 get_unaligned_le64(const void *p)
{
	return le64_to_cpu(__get_unaligned_t(__le64, p));
}

static inline void put_unaligned_le16(u16 val, void *p)
{
	__put_unaligned_t(__le16, cpu_to_le16(val), p);
}

static inline void put_unaligned_le32(u32 val, void *p)
{
	__put_unaligned_t(__le32, cpu_to_le32(val), p);
}

static inline void put_unaligned_le64(u64 val, void *p)
{
	__put_unaligned_t(__le64, cpu_to_le64(val), p);
}

static inline u16 get_unaligned_be16(const void *p)
{
	return be16_to_cpu(__get_unaligned_t(__be16, p));
}

static inline u32 get_unaligned_be32(const void *p)
{
	return be32_to_cpu(__get_unaligned_t(__be32, p));
}

static inline u64 get_unaligned_be64(const void *p)
{
	return be64_to_cpu(__get_unaligned_t(__be64, p));
}

static inline void put_unaligned_be16(u16 val, void *p)
{
	__put_unaligned_t(__be16, cpu_to_be16(val), p);
}

static inline void put_unaligned_be32(u32 val, void *p)
{
	__put_unaligned_t(__be32, cpu_to_be32(val), p);
}

static inline void put_unaligned_be64(u64 val, void *p)
{
	__put_unaligned_t(__be64, cpu_to_be64(val), p);
}

static inline u32 __get_unaligned_be24(const u8 *p)
{
	return p[0] << 16 | p[1] << 8 | p[2];
}

static inline u32 get_unaligned_be24(const void *p)
{
	return __get_unaligned_be24(p);
}

static inline u32 __get_unaligned_le24(const u8 *p)
{
	return p[0] | p[1] << 8 | p[2] << 16;
}

static inline u32 get_unaligned_le24(const void *p)

Annotation

Implementation Notes