A subsequent patch will make the crypto/dh's dh_is_pubkey_valid() to
calculate a safe-prime groups Q parameter from P: Q = (P - 1) / 2. For
implementing this, mpi_rshift() will be needed. Export it so that it's
accessible from crypto/dh.
Signed-off-by: Nicolai Stange <[email protected]>
Reviewed-by: Hannes Reinecke <[email protected]>
---
lib/mpi/mpi-bit.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/lib/mpi/mpi-bit.c b/lib/mpi/mpi-bit.c
index 142b680835df..070ba784c9f1 100644
--- a/lib/mpi/mpi-bit.c
+++ b/lib/mpi/mpi-bit.c
@@ -242,6 +242,7 @@ 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
--
2.26.2