lib: export bitrev16

Bluetooth will be able to use this.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Marcel Holtmann <marcel@holtmann.org>
Cc: Dave Young <hidave.darkstar@gmail.com>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/lib/bitrev.c b/lib/bitrev.c
index 989aff7..3956203 100644
--- a/lib/bitrev.c
+++ b/lib/bitrev.c
@@ -42,10 +42,11 @@
 };
 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