mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 14:36:46 +07:00
a5cfc1ec58
This patch provides two bit reverse functions and bit reverse table. - reverse the order of bits in a u32 value u8 bitrev8(u8 x); - reverse the order of bits in a u32 value u32 bitrev32(u32 x); - byte reverse table const u8 byte_rev_table[256]; Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
16 lines
241 B
C
16 lines
241 B
C
#ifndef _LINUX_BITREV_H
|
|
#define _LINUX_BITREV_H
|
|
|
|
#include <linux/types.h>
|
|
|
|
extern u8 const byte_rev_table[256];
|
|
|
|
static inline u8 bitrev8(u8 byte)
|
|
{
|
|
return byte_rev_table[byte];
|
|
}
|
|
|
|
extern u32 bitrev32(u32 in);
|
|
|
|
#endif /* _LINUX_BITREV_H */
|