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

Message ID 20220202104012.4193-15-nstange@suse.de (mailing list archive)
State Changes Requested
Delegated to: Herbert Xu
Headers show
Series crypto: dh - infrastructure for NVM in-band auth and FIPS conformance | expand

Commit Message

Nicolai Stange Feb. 2, 2022, 10:40 a.m. UTC 
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(+)
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Patch

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