3 files changed, 10 insertions, 4 deletions
diff --git a/src/bitfield/8byte.c b/src/bitfield/8byte.c
index d3160934..bfceb788 100644
--- a/src/bitfield/8byte.c
+++ b/src/bitfield/8byte.c
@@ -6,10 +6,6 @@
 
 #define EIGHTBYTE_BIT (8 * sizeof(uint64_t))
 
-uint64_t bitmask(const uint8_t bit_count) {
-    return (((uint64_t)0x1) << bit_count) - 1;
-}
-
 uint8_t eightbyte_get_nibble(const uint64_t source, const uint8_t nibble_index,
         const bool data_is_big_endian) {
     return get_bit_field(source, NIBBLE_SIZE * nibble_index, NIBBLE_SIZE,
diff --git a/src/bitfield/bitfield.c b/src/bitfield/bitfield.c
index ae1be403..3b0c5fdd 100644
--- a/src/bitfield/bitfield.c
+++ b/src/bitfield/bitfield.c
@@ -3,6 +3,10 @@
 #include <string.h>
 #include <stddef.h>
 
+uint64_t bitmask(const uint8_t bit_count) {
+    return (((uint64_t)0x1) << bit_count) - 1;
+}
+
 uint8_t get_nibble(const uint8_t source[], const uint8_t source_length,
                 const uint8_t nibble_index) {
     uint8_t byte_index = nibble_index / 2;
diff --git a/src/bitfield/bitfield.h b/src/bitfield/bitfield.h
index ef04d9ca..5dd976f0 100644
--- a/src/bitfield/bitfield.h
+++ b/src/bitfield/bitfield.h
@@ -138,8 +138,14 @@ bool copy_bytes_right_aligned(const uint8_t source[], const uint16_t source_leng
 bool set_nibble(const uint16_t nibble_index, const uint8_t value,
                 uint8_t* destination, const uint16_t destination_length);
 
+/* Private:
+ */
 uint16_t bits_to_bytes(uint32_t bits);
 
+/* Private:
+ */
+uint64_t bitmask(const uint8_t bit_count);
+
 #ifdef __cplusplus
 }
 #endif