[PATCH v3 14/15] lib/mpi: export mpi_rshift

Nicolai Stange
2022-02-02T10:42:27Z

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 <nstange@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.de>
---
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