--- a/libtommath/bn_mp_reduce_2k_setup_l.c	Thu Mar 21 23:28:59 2019 +0800
+++ b/libtommath/bn_mp_reduce_2k_setup_l.c	Fri Jun 26 21:07:34 2020 +0800
@@ -1,44 +1,28 @@
-#include <tommath_private.h>
+#include "tommath_private.h"
 #ifdef BN_MP_REDUCE_2K_SETUP_L_C
-/* LibTomMath, multiple-precision integer library -- Tom St Denis
- *
- * LibTomMath is a library that provides multiple-precision
- * integer arithmetic as well as number theoretic functionality.
- *
- * The library was designed directly after the MPI library by
- * Michael Fromberger but has been written from scratch with
- * additional optimizations in place.
- *
- * The library is free for all purposes without any express
- * guarantee it works.
- *
- * Tom St Denis, [email protected], http://libtom.org
- */
+/* LibTomMath, multiple-precision integer library -- Tom St Denis */
+/* SPDX-License-Identifier: Unlicense */
 
 /* determines the setup value */
-int mp_reduce_2k_setup_l(mp_int *a, mp_int *d)
+mp_err mp_reduce_2k_setup_l(const mp_int *a, mp_int *d)
 {
-   int    res;
+   mp_err err;
    mp_int tmp;
-   
-   if ((res = mp_init(&tmp)) != MP_OKAY) {
-      return res;
+
+   if ((err = mp_init(&tmp)) != MP_OKAY) {
+      return err;
    }
-   
-   if ((res = mp_2expt(&tmp, mp_count_bits(a))) != MP_OKAY) {
-      goto ERR;
+
+   if ((err = mp_2expt(&tmp, mp_count_bits(a))) != MP_OKAY) {
+      goto LBL_ERR;
    }
-   
-   if ((res = s_mp_sub(&tmp, a, d)) != MP_OKAY) {
-      goto ERR;
+
+   if ((err = s_mp_sub(&tmp, a, d)) != MP_OKAY) {
+      goto LBL_ERR;
    }
-   
-ERR:
+
+LBL_ERR:
    mp_clear(&tmp);
-   return res;
+   return err;
 }
 #endif
-
-/* ref:         $Format:%D$ */
-/* git commit:  $Format:%H$ */
-/* commit time: $Format:%ai$ */