mirror of
https://github.com/torvalds/linux.git
synced 2025-11-04 02:30:34 +02:00
7b9e664beb
There is a convention to use internal kernel types, so replace __u8 by u8. Link: https://lkml.kernel.org/r/20220830172713.43686-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Keith Busch <kbusch@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
155 lines
3.3 KiB
C
155 lines
3.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
#ifndef __ASM_GENERIC_UNALIGNED_H
|
|
#define __ASM_GENERIC_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>
|
|
|
|
#define __get_unaligned_t(type, ptr) ({ \
|
|
const struct { type x; } __packed *__pptr = (typeof(__pptr))(ptr); \
|
|
__pptr->x; \
|
|
})
|
|
|
|
#define __put_unaligned_t(type, val, ptr) do { \
|
|
struct { type x; } __packed *__pptr = (typeof(__pptr))(ptr); \
|
|
__pptr->x = (val); \
|
|
} while (0)
|
|
|
|
#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)
|
|
{
|
|
return __get_unaligned_le24(p);
|
|
}
|
|
|
|
static inline void __put_unaligned_be24(const u32 val, u8 *p)
|
|
{
|
|
*p++ = val >> 16;
|
|
*p++ = val >> 8;
|
|
*p++ = val;
|
|
}
|
|
|
|
static inline void put_unaligned_be24(const u32 val, void *p)
|
|
{
|
|
__put_unaligned_be24(val, p);
|
|
}
|
|
|
|
static inline void __put_unaligned_le24(const u32 val, u8 *p)
|
|
{
|
|
*p++ = val;
|
|
*p++ = val >> 8;
|
|
*p++ = val >> 16;
|
|
}
|
|
|
|
static inline void put_unaligned_le24(const u32 val, void *p)
|
|
{
|
|
__put_unaligned_le24(val, p);
|
|
}
|
|
|
|
static inline void __put_unaligned_be48(const u64 val, u8 *p)
|
|
{
|
|
*p++ = val >> 40;
|
|
*p++ = val >> 32;
|
|
*p++ = val >> 24;
|
|
*p++ = val >> 16;
|
|
*p++ = val >> 8;
|
|
*p++ = val;
|
|
}
|
|
|
|
static inline void put_unaligned_be48(const u64 val, void *p)
|
|
{
|
|
__put_unaligned_be48(val, p);
|
|
}
|
|
|
|
static inline u64 __get_unaligned_be48(const u8 *p)
|
|
{
|
|
return (u64)p[0] << 40 | (u64)p[1] << 32 | (u64)p[2] << 24 |
|
|
p[3] << 16 | p[4] << 8 | p[5];
|
|
}
|
|
|
|
static inline u64 get_unaligned_be48(const void *p)
|
|
{
|
|
return __get_unaligned_be48(p);
|
|
}
|
|
|
|
#endif /* __ASM_GENERIC_UNALIGNED_H */
|