Revert "lib/mpi: Extend the MPI library"

This partially reverts commit a8ea8bdd9df92a0e5db5b43900abb7a288b8a53e.

Most of it is no longer needed since sm2 has been removed.  However,
the following functions have been kept as they have developed other
uses:

mpi_copy

mpi_mod

mpi_test_bit
mpi_set_bit
mpi_rshift

mpi_add
mpi_sub
mpi_addm
mpi_subm

mpi_mul
mpi_mulm

mpi_tdiv_r
mpi_fdiv_r

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 0 insertions, 29 deletions

diff --git a/lib/crypto/mpi/mpi-div.c b/lib/crypto/mpi/mpi-div.c
index 45beab8b9e9e..2ff0ebd74fd7 100644
--- a/lib/crypto/mpi/mpi-div.c
+++ b/lib/crypto/mpi/mpi-div.c
@@ -15,7 +15,6 @@
 #include "longlong.h"
 
 void mpi_tdiv_qr(MPI quot, MPI rem, MPI num, MPI den);
-void mpi_fdiv_qr(MPI quot, MPI rem, MPI dividend, MPI divisor);
 
 void mpi_fdiv_r(MPI rem, MPI dividend, MPI divisor)
 {
@@ -40,34 +39,6 @@ void mpi_fdiv_r(MPI rem, MPI dividend, MPI divisor)
 		mpi_free(temp_divisor);
 }
 
-void mpi_fdiv_q(MPI quot, MPI dividend, MPI divisor)
-{
-	MPI tmp = mpi_alloc(mpi_get_nlimbs(quot));
-	mpi_fdiv_qr(quot, tmp, dividend, divisor);
-	mpi_free(tmp);
-}
-
-void mpi_fdiv_qr(MPI quot, MPI rem, MPI dividend, MPI divisor)
-{
-	int divisor_sign = divisor->sign;
-	MPI temp_divisor = NULL;
-
-	if (quot == divisor || rem == divisor) {
-		temp_divisor = mpi_copy(divisor);
-		divisor = temp_divisor;
-	}
-
-	mpi_tdiv_qr(quot, rem, dividend, divisor);
-
-	if ((divisor_sign ^ dividend->sign) && rem->nlimbs) {
-		mpi_sub_ui(quot, quot, 1);
-		mpi_add(rem, rem, divisor);
-	}
-
-	if (temp_divisor)
-		mpi_free(temp_divisor);
-}
-
 /* If den == quot, den needs temporary storage.
  * If den == rem, den needs temporary storage.
  * If num == quot, num needs temporary storage.