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Diffstat (limited to 'lib/crypto/mpi/mpi-pow.c')
-rw-r--r--lib/crypto/mpi/mpi-pow.c9
1 files changed, 2 insertions, 7 deletions
diff --git a/lib/crypto/mpi/mpi-pow.c b/lib/crypto/mpi/mpi-pow.c
index 2fd7a46d55ec..67fbd4c2503d 100644
--- a/lib/crypto/mpi/mpi-pow.c
+++ b/lib/crypto/mpi/mpi-pow.c
@@ -176,7 +176,6 @@ int mpi_powm(MPI res, MPI base, MPI exp, MPI mod)
for (;;) {
while (c) {
- mpi_ptr_t tp;
mpi_size_t xsize;
/*if (mpihelp_mul_n(xp, rp, rp, rsize) < 0) goto enomem */
@@ -207,9 +206,7 @@ int mpi_powm(MPI res, MPI base, MPI exp, MPI mod)
xsize = msize;
}
- tp = rp;
- rp = xp;
- xp = tp;
+ swap(rp, xp);
rsize = xsize;
if ((mpi_limb_signed_t) e < 0) {
@@ -235,9 +232,7 @@ int mpi_powm(MPI res, MPI base, MPI exp, MPI mod)
xsize = msize;
}
- tp = rp;
- rp = xp;
- xp = tp;
+ swap(rp, xp);
rsize = xsize;
}
e <<= 1;