Merge remote-tracking branch 'lsk/v3.10/topic/gator' into linux-linaro-lsk

[firefly-linux-kernel-4.4.55.git] / include / asm-generic / word-at-a-time.h

diff --git a/include/asm-generic/word-at-a-time.h b/include/asm-generic/word-at-a-time.h
index 3f21f1b72e45db6db5e8ef7ec75fb790ce6184a9..94f9ea8abcae35af8ca36560403fbd25facb7c65 100644 (file)
--- a/include/asm-generic/word-at-a-time.h
+++ b/include/asm-generic/word-at-a-time.h
@@ -49,4 +49,8 @@ static inline bool has_zero(unsigned long val, unsigned long *data, const struct
        return (val + c->high_bits) & ~rhs;
 }
 
+#ifndef zero_bytemask
+#define zero_bytemask(mask) (~1ul << __fls(mask))
+#endif
+
 #endif /* _ASM_WORD_AT_A_TIME_H */