crypto: lib - Move mpi into lib/crypto

As lib/mpi is mostly used by crypto code, move it under lib/crypto
so that patches touching it get directed to the right mailing list.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 0 insertions, 47 deletions

diff --git a/lib/mpi/generic_mpih-sub1.c b/lib/mpi/generic_mpih-sub1.c
deleted file mode 100644
index eea4382aad5f..000000000000
--- a/lib/mpi/generic_mpih-sub1.c
+++ /dev/null
@@ -1,47 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-or-later
-/* mpihelp-add_2.c  -  MPI helper functions
- * Copyright (C) 1994, 1996, 1997, 1998, 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"
-#include "longlong.h"
-
-mpi_limb_t
-mpihelp_sub_n(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
-	      mpi_ptr_t s2_ptr, mpi_size_t size)
-{
-	mpi_limb_t x, y, cy;
-	mpi_size_t j;
-
-	/* The loop counter and index J goes from -SIZE to -1.  This way
-	   the loop becomes faster.  */
-	j = -size;
-
-	/* Offset the base pointers to compensate for the negative indices.  */
-	s1_ptr -= j;
-	s2_ptr -= j;
-	res_ptr -= j;
-
-	cy = 0;
-	do {
-		y = s2_ptr[j];
-		x = s1_ptr[j];
-		y += cy;	/* add previous carry to subtrahend */
-		cy = y < cy;	/* get out carry from that addition */
-		y = x - y;	/* main subtract */
-		cy += y > x;	/* get out carry from the subtract, combine */
-		res_ptr[j] = y;
-	} while (++j);
-
-	return cy;
-}