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>
15 lines
241 B
C
15 lines
241 B
C
#ifndef _LINUX_BITREV_H
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#define _LINUX_BITREV_H
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#include <linux/types.h>
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extern u8 const byte_rev_table[256];
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static inline u8 bitrev8(u8 byte)
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{
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return byte_rev_table[byte];
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}
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extern u32 bitrev32(u32 in);
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#endif /* _LINUX_BITREV_H */
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