crypto: lib - Move mpi into lib/crypto

[linux-2.6-microblaze.git] / lib / mpi / generic_mpih-rshift.c

diff --git a/lib/mpi/generic_mpih-rshift.c b/lib/mpi/generic_mpih-rshift.c
deleted file mode 100644 (file)
index e07bc69..0000000
--- a/lib/mpi/generic_mpih-rshift.c
+++ /dev/null
@@ -1,50 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/* mpih-rshift.c  -  MPI helper functions
- * Copyright (C) 1994, 1996, 1998, 1999,
- *               2000, 2001 Free Software Foundation, Inc.
- *
- * This file is part of GNUPG
- *
- * Note: This code is heavily based on the GNU MP Library.
- *      Actually it's the same code with only minor changes in the
- *      way the data is stored; this is to support the abstraction
- *      of an optional secure memory allocation which may be used
- *      to avoid revealing of sensitive data due to paging etc.
- *      The GNU MP Library itself is published under the LGPL;
- *      however I decided to publish this code under the plain GPL.
- */
-
-#include "mpi-internal.h"
-
-/* Shift U (pointed to by UP and USIZE limbs long) CNT bits to the right
- * and store the USIZE least significant limbs of the result at WP.
- * The bits shifted out to the right are returned.
- *
- * Argument constraints:
- * 1. 0 < CNT < BITS_PER_MP_LIMB
- * 2. If the result is to be written over the input, WP must be <= UP.
- */
-
-mpi_limb_t
-mpihelp_rshift(mpi_ptr_t wp, mpi_ptr_t up, mpi_size_t usize, unsigned cnt)
-{
-       mpi_limb_t high_limb, low_limb;
-       unsigned sh_1, sh_2;
-       mpi_size_t i;
-       mpi_limb_t retval;
-
-       sh_1 = cnt;
-       wp -= 1;
-       sh_2 = BITS_PER_MPI_LIMB - sh_1;
-       high_limb = up[0];
-       retval = high_limb << sh_2;
-       low_limb = high_limb;
-       for (i = 1; i < usize; i++) {
-               high_limb = up[i];
-               wp[i] = (low_limb >> sh_1) | (high_limb << sh_2);
-               low_limb = high_limb;
-       }
-       wp[i] = low_limb >> sh_1;
-
-       return retval;
-}