Fix some comments
diff --git a/mp_mul.c b/mp_mul.c
index bb0b652..9c8f8ae 100644
--- a/mp_mul.c
+++ b/mp_mul.c
@@ -17,7 +17,7 @@ mp_err mp_mul(const mp_int *a, const mp_int *b, mp_int *c)
* The bigger one needs to be at least about one MP_KARATSUBA_MUL_CUTOFF bigger
* to make some sense, but it depends on architecture, OS, position of the
* stars... so YMMV.
- * Using it to cut the input into slices small enough for fast_s_mp_mul_digs
+ * Using it to cut the input into slices small enough for s_mp_mul_digs_fast
* was actually slower on the author's machine, but YMMV.
*/
(min_len >= MP_KARATSUBA_MUL_CUTOFF) &&
diff --git a/s_mp_mul_high_digs_fast.c b/s_mp_mul_high_digs_fast.c
index 06561a9..1559ebc 100644
--- a/s_mp_mul_high_digs_fast.c
+++ b/s_mp_mul_high_digs_fast.c
@@ -3,8 +3,8 @@
/* LibTomMath, multiple-precision integer library -- Tom St Denis */
/* SPDX-License-Identifier: Unlicense */
-/* this is a modified version of fast_s_mul_digs that only produces
- * output digits *above* digs. See the comments for fast_s_mul_digs
+/* this is a modified version of s_mp_mul_digs_fast that only produces
+ * output digits *above* digs. See the comments for s_mp_mul_digs_fast
* to see how it works.
*
* This is used in the Barrett reduction since for one of the multiplications