commit a3a0025e1831b9d22e8587d88a4d4d42dfad38bb
author Gilles Peskine <gilles.peskine@arm.com> Tue Jun 20 22:13:06 2023 +0200
committer GitHub <noreply@github.com> Tue Jun 20 22:13:06 2023 +0200
tree 62bd5fd4ef992e971cf327b1e536acaeea4dec02
parent 5faccf038b5ff6015955b994b3d9b0fa780ed711
parent 215ed131cf5cc4f3804f5017c098be70644774c1

Merge pull request #7806 from paul-elliott-arm/fix_32bit_builds

[Bignum] Fix 32 bit unreachable code build failure

library/ecp_curves.c

diff --git a/library/ecp_curves.c b/library/ecp_curves.c
index af649a2..96013b3 100644
--- a/library/ecp_curves.c
+++ b/library/ecp_curves.c
@@ -5577,9 +5577,9 @@
     (void) mbedtls_mpi_core_add(X, X, Q, Q_limbs);
 
     /* M = B0 */
-    if (ciL > 4) {
-        M[P224_WIDTH_MIN] &= ((mbedtls_mpi_uint)-1) >> (P224_UNUSED_BITS);
-    }
+#ifdef MBEDTLS_HAVE_INT64
+    M[P224_WIDTH_MIN] &= ((mbedtls_mpi_uint)-1) >> (P224_UNUSED_BITS);
+ #endif
     memset(M + P224_WIDTH_MAX, 0, ((M_limbs - P224_WIDTH_MAX) * ciL));
 
     /* M = M + Q = B0 + B1 */