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 <[email protected]> Reviewed-by: Hannes Reinecke <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
niw · Mar 2, 2022 · 81771ff · 81771ff
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commit 81771ff
Showing 1 changed file with 1 addition and 0 deletions.
diff --git 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