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lib: export bitrev16
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Bluetooth will be able to use this.

Signed-off-by: Harvey Harrison <[email protected]>
Cc: Marcel Holtmann <[email protected]>
Cc: Dave Young <[email protected]>
Cc: Akinobu Mita <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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hharrison authored and torvalds committed Jun 6, 2008
1 parent f2eb432 commit 3527fb3
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Showing 2 changed files with 3 additions and 1 deletion.
1 change: 1 addition & 0 deletions include/linux/bitrev.h
Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@ static inline u8 bitrev8(u8 byte)
return byte_rev_table[byte];
}

extern u16 bitrev16(u16 in);
extern u32 bitrev32(u32 in);

#endif /* _LINUX_BITREV_H */
3 changes: 2 additions & 1 deletion lib/bitrev.c
Original file line number Diff line number Diff line change
Expand Up @@ -42,10 +42,11 @@ const u8 byte_rev_table[256] = {
};
EXPORT_SYMBOL_GPL(byte_rev_table);

static __always_inline u16 bitrev16(u16 x)
u16 bitrev16(u16 x)
{
return (bitrev8(x & 0xff) << 8) | bitrev8(x >> 8);
}
EXPORT_SYMBOL(bitrev16);

/**
* bitrev32 - reverse the order of bits in a u32 value
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