diff -Nrup a/bcache.h b/bcache.h

--- a/bcache.h	2019-10-15 13:33:53.008004124 -0600

+++ b/bcache.h	2019-10-15 13:34:58.322638870 -0600

@@ -117,7 +117,7 @@ BITMASK(BDEV_STATE,		struct cache_sb, fl

 extern const uint64_t crc_table[];

-inline uint64_t crc64(const void *_data, size_t len)

+static inline uint64_t crc64(const void *_data, size_t len)

 {

         uint64_t crc = 0xFFFFFFFFFFFFFFFFULL;

         const unsigned char *data = _data;