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authorNicolai Stange <nstange@suse.de>2022-02-21 13:11:00 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2022-03-03 10:47:52 +1200
commit81771ff2411a4cd1224c4b16e0b4247e71bba0de (patch)
treeba3301c1ec783be38e5e4806e9c13946cd360cb9 /lib/mpi
parent32f07cc40c9bb41452dc9d6c514a2012d9682b39 (diff)
lib/mpi: export mpi_rshift
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> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'lib/mpi')
-rw-r--r--lib/mpi/mpi-bit.c1
1 files changed, 1 insertions, 0 deletions
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