2 files changed, 0 insertions, 106 deletions

diff --git a/arch/powerpc/crypto/Kconfig b/arch/powerpc/crypto/Kconfig
index f4b779c7352d..6106a219da6a 100644
--- a/arch/powerpc/crypto/Kconfig
+++ b/arch/powerpc/crypto/Kconfig
@@ -5,7 +5,6 @@ menu "Accelerated Cryptographic Algorithms for CPU (powerpc)"
 config CRYPTO_CURVE25519_PPC64
 	tristate
 	depends on PPC64 && CPU_LITTLE_ENDIAN
-	select CRYPTO_KPP
 	select CRYPTO_LIB_CURVE25519_GENERIC
 	select CRYPTO_ARCH_HAVE_LIB_CURVE25519
 	default CRYPTO_LIB_CURVE25519_INTERNAL
diff --git a/arch/powerpc/crypto/curve25519-ppc64le-core.c b/arch/powerpc/crypto/curve25519-ppc64le-core.c
index f7810be0b292..6eb18ee19cad 100644
--- a/arch/powerpc/crypto/curve25519-ppc64le-core.c
+++ b/arch/powerpc/crypto/curve25519-ppc64le-core.c
@@ -8,13 +8,11 @@
  */
 
 #include <crypto/curve25519.h>
-#include <crypto/internal/kpp.h>
 
 #include <linux/types.h>
 #include <linux/jump_label.h>
 #include <linux/kernel.h>
 #include <linux/module.h>
-#include <linux/scatterlist.h>
 
 #include <linux/cpufeature.h>
 #include <linux/processor.h>
@@ -192,109 +190,6 @@ void curve25519_base_arch(u8 pub[CURVE25519_KEY_SIZE],
 }
 EXPORT_SYMBOL(curve25519_base_arch);
 
-static int curve25519_set_secret(struct crypto_kpp *tfm, const void *buf,
-				 unsigned int len)
-{
-	u8 *secret = kpp_tfm_ctx(tfm);
-
-	if (!len)
-		curve25519_generate_secret(secret);
-	else if (len == CURVE25519_KEY_SIZE &&
-		 crypto_memneq(buf, curve25519_null_point, CURVE25519_KEY_SIZE))
-		memcpy(secret, buf, CURVE25519_KEY_SIZE);
-	else
-		return -EINVAL;
-	return 0;
-}
-
-static int curve25519_generate_public_key(struct kpp_request *req)
-{
-	struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
-	const u8 *secret = kpp_tfm_ctx(tfm);
-	u8 buf[CURVE25519_KEY_SIZE];
-	int copied, nbytes;
-
-	if (req->src)
-		return -EINVAL;
-
-	curve25519_base_arch(buf, secret);
-
-	/* might want less than we've got */
-	nbytes = min_t(size_t, CURVE25519_KEY_SIZE, req->dst_len);
-	copied = sg_copy_from_buffer(req->dst, sg_nents_for_len(req->dst,
-								nbytes),
-				     buf, nbytes);
-	if (copied != nbytes)
-		return -EINVAL;
-	return 0;
-}
-
-static int curve25519_compute_shared_secret(struct kpp_request *req)
-{
-	struct crypto_kpp *tfm = crypto_kpp_reqtfm(req);
-	const u8 *secret = kpp_tfm_ctx(tfm);
-	u8 public_key[CURVE25519_KEY_SIZE];
-	u8 buf[CURVE25519_KEY_SIZE];
-	int copied, nbytes;
-
-	if (!req->src)
-		return -EINVAL;
-
-	copied = sg_copy_to_buffer(req->src,
-				   sg_nents_for_len(req->src,
-						    CURVE25519_KEY_SIZE),
-				   public_key, CURVE25519_KEY_SIZE);
-	if (copied != CURVE25519_KEY_SIZE)
-		return -EINVAL;
-
-	curve25519_arch(buf, secret, public_key);
-
-	/* might want less than we've got */
-	nbytes = min_t(size_t, CURVE25519_KEY_SIZE, req->dst_len);
-	copied = sg_copy_from_buffer(req->dst, sg_nents_for_len(req->dst,
-								nbytes),
-				     buf, nbytes);
-	if (copied != nbytes)
-		return -EINVAL;
-	return 0;
-}
-
-static unsigned int curve25519_max_size(struct crypto_kpp *tfm)
-{
-	return CURVE25519_KEY_SIZE;
-}
-
-static struct kpp_alg curve25519_alg = {
-	.base.cra_name		= "curve25519",
-	.base.cra_driver_name	= "curve25519-ppc64le",
-	.base.cra_priority	= 200,
-	.base.cra_module	= THIS_MODULE,
-	.base.cra_ctxsize	= CURVE25519_KEY_SIZE,
-
-	.set_secret		= curve25519_set_secret,
-	.generate_public_key	= curve25519_generate_public_key,
-	.compute_shared_secret	= curve25519_compute_shared_secret,
-	.max_size		= curve25519_max_size,
-};
-
-
-static int __init curve25519_mod_init(void)
-{
-	return IS_REACHABLE(CONFIG_CRYPTO_KPP) ?
-		crypto_register_kpp(&curve25519_alg) : 0;
-}
-
-static void __exit curve25519_mod_exit(void)
-{
-	if (IS_REACHABLE(CONFIG_CRYPTO_KPP))
-		crypto_unregister_kpp(&curve25519_alg);
-}
-
-module_init(curve25519_mod_init);
-module_exit(curve25519_mod_exit);
-
-MODULE_ALIAS_CRYPTO("curve25519");
-MODULE_ALIAS_CRYPTO("curve25519-ppc64le");
 MODULE_DESCRIPTION("PPC64le Curve25519 scalar multiplication with 51 bits limbs");
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Danny Tsen <dtsen@us.ibm.com>");