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-rw-r--r--lib/crypto/mpi/mpi-bit.c143
1 files changed, 0 insertions, 143 deletions
diff --git a/lib/crypto/mpi/mpi-bit.c b/lib/crypto/mpi/mpi-bit.c
index e08fc202ea5c..c29b85362664 100644
--- a/lib/crypto/mpi/mpi-bit.c
+++ b/lib/crypto/mpi/mpi-bit.c
@@ -32,7 +32,6 @@ void mpi_normalize(MPI a)
for (; a->nlimbs && !a->d[a->nlimbs - 1]; a->nlimbs--)
;
}
-EXPORT_SYMBOL_GPL(mpi_normalize);
/****************
* Return the number of bits in A.
@@ -93,85 +92,6 @@ void mpi_set_bit(MPI a, unsigned int n)
a->d[limbno] |= (A_LIMB_1<<bitno);
}
-/****************
- * Set bit N of A. and clear all bits above
- */
-void mpi_set_highbit(MPI a, unsigned int n)
-{
- unsigned int i, limbno, bitno;
-
- limbno = n / BITS_PER_MPI_LIMB;
- bitno = n % BITS_PER_MPI_LIMB;
-
- if (limbno >= a->nlimbs) {
- for (i = a->nlimbs; i < a->alloced; i++)
- a->d[i] = 0;
- mpi_resize(a, limbno+1);
- a->nlimbs = limbno+1;
- }
- a->d[limbno] |= (A_LIMB_1<<bitno);
- for (bitno++; bitno < BITS_PER_MPI_LIMB; bitno++)
- a->d[limbno] &= ~(A_LIMB_1 << bitno);
- a->nlimbs = limbno+1;
-}
-EXPORT_SYMBOL_GPL(mpi_set_highbit);
-
-/****************
- * clear bit N of A and all bits above
- */
-void mpi_clear_highbit(MPI a, unsigned int n)
-{
- unsigned int limbno, bitno;
-
- limbno = n / BITS_PER_MPI_LIMB;
- bitno = n % BITS_PER_MPI_LIMB;
-
- if (limbno >= a->nlimbs)
- return; /* not allocated, therefore no need to clear bits :-) */
-
- for ( ; bitno < BITS_PER_MPI_LIMB; bitno++)
- a->d[limbno] &= ~(A_LIMB_1 << bitno);
- a->nlimbs = limbno+1;
-}
-
-/****************
- * Clear bit N of A.
- */
-void mpi_clear_bit(MPI a, unsigned int n)
-{
- unsigned int limbno, bitno;
-
- limbno = n / BITS_PER_MPI_LIMB;
- bitno = n % BITS_PER_MPI_LIMB;
-
- if (limbno >= a->nlimbs)
- return; /* Don't need to clear this bit, it's far too left. */
- a->d[limbno] &= ~(A_LIMB_1 << bitno);
-}
-EXPORT_SYMBOL_GPL(mpi_clear_bit);
-
-
-/****************
- * Shift A by COUNT limbs to the right
- * This is used only within the MPI library
- */
-void mpi_rshift_limbs(MPI a, unsigned int count)
-{
- mpi_ptr_t ap = a->d;
- mpi_size_t n = a->nlimbs;
- unsigned int i;
-
- if (count >= n) {
- a->nlimbs = 0;
- return;
- }
-
- for (i = 0; i < n - count; i++)
- ap[i] = ap[i+count];
- ap[i] = 0;
- a->nlimbs -= count;
-}
-
/*
* Shift A by N bits to the right.
*/
@@ -241,66 +161,3 @@ void mpi_rshift(MPI x, MPI a, unsigned int n)
MPN_NORMALIZE(x->d, x->nlimbs);
}
EXPORT_SYMBOL_GPL(mpi_rshift);
-
-/****************
- * Shift A by COUNT limbs to the left
- * This is used only within the MPI library
- */
-void mpi_lshift_limbs(MPI a, unsigned int count)
-{
- mpi_ptr_t ap;
- int n = a->nlimbs;
- int i;
-
- if (!count || !n)
- return;
-
- RESIZE_IF_NEEDED(a, n+count);
-
- ap = a->d;
- for (i = n-1; i >= 0; i--)
- ap[i+count] = ap[i];
- for (i = 0; i < count; i++)
- ap[i] = 0;
- a->nlimbs += count;
-}
-
-/*
- * Shift A by N bits to the left.
- */
-void mpi_lshift(MPI x, MPI a, unsigned int n)
-{
- unsigned int nlimbs = (n/BITS_PER_MPI_LIMB);
- unsigned int nbits = (n%BITS_PER_MPI_LIMB);
-
- if (x == a && !n)
- return; /* In-place shift with an amount of zero. */
-
- if (x != a) {
- /* Copy A to X. */
- unsigned int alimbs = a->nlimbs;
- int asign = a->sign;
- mpi_ptr_t xp, ap;
-
- RESIZE_IF_NEEDED(x, alimbs+nlimbs+1);
- xp = x->d;
- ap = a->d;
- MPN_COPY(xp, ap, alimbs);
- x->nlimbs = alimbs;
- x->flags = a->flags;
- x->sign = asign;
- }
-
- if (nlimbs && !nbits) {
- /* Shift a full number of limbs. */
- mpi_lshift_limbs(x, nlimbs);
- } else if (n) {
- /* We use a very dump approach: Shift left by the number of
- * limbs plus one and than fix it up by an rshift.
- */
- mpi_lshift_limbs(x, nlimbs+1);
- mpi_rshift(x, x, BITS_PER_MPI_LIMB - nbits);
- }
-
- MPN_NORMALIZE(x->d, x->nlimbs);
-}