From 2a598d0b2800aa23ba51adcf060cec524aaa63b2 Mon Sep 17 00:00:00 2001 From: Herbert Xu Date: Fri, 4 Aug 2023 17:24:34 +0800 Subject: 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 Reviewed-by: Mimi Zohar Signed-off-by: Herbert Xu --- lib/mpi/generic_mpih-sub1.c | 47 --------------------------------------------- 1 file changed, 47 deletions(-) delete mode 100644 lib/mpi/generic_mpih-sub1.c (limited to 'lib/mpi/generic_mpih-sub1.c') 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; -} -- cgit