path: root/crypto
diff options
authorArd Biesheuvel <ardb@kernel.org>2019-11-08 13:22:22 +0100
committerHerbert Xu <herbert@gondor.apana.org.au>2019-11-17 09:02:41 +0800
commit1b2c6a5120489d41c8ea3b8dacd0b4586289b158 (patch)
tree7506e4434a70fc7fc9aebf9e1390deb9f7b46e31 /crypto
parentcrypto: poly1305 - expose init/update/final library interface (diff)
crypto: x86/poly1305 - depend on generic library not generic shash
Remove the dependency on the generic Poly1305 driver. Instead, depend on the generic library so that we only reuse code without pulling in the generic skcipher implementation as well. While at it, remove the logic that prefers the non-SIMD path for short inputs - this is no longer necessary after recent FPU handling changes on x86. Since this removes the last remaining user of the routines exported by the generic shash driver, unexport them and make them static. Signed-off-by: Ard Biesheuvel <ardb@kernel.org> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to '')
2 files changed, 5 insertions, 8 deletions
diff --git a/crypto/Kconfig b/crypto/Kconfig
index 362dd6ae6aca..2c7327a5b28e 100644
--- a/crypto/Kconfig
+++ b/crypto/Kconfig
@@ -714,7 +714,7 @@ config CRYPTO_POLY1305
config CRYPTO_POLY1305_X86_64
tristate "Poly1305 authenticator algorithm (x86_64/SSE2/AVX2)"
depends on X86 && 64BIT
- select CRYPTO_POLY1305
Poly1305 authenticator algorithm, RFC7539.
diff --git a/crypto/poly1305_generic.c b/crypto/poly1305_generic.c
index afe9a9e576dd..21edbd8c99fb 100644
--- a/crypto/poly1305_generic.c
+++ b/crypto/poly1305_generic.c
@@ -19,7 +19,7 @@
#include <linux/module.h>
#include <asm/unaligned.h>
-int crypto_poly1305_init(struct shash_desc *desc)
+static int crypto_poly1305_init(struct shash_desc *desc)
struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
@@ -30,7 +30,6 @@ int crypto_poly1305_init(struct shash_desc *desc)
return 0;
static void poly1305_blocks(struct poly1305_desc_ctx *dctx, const u8 *src,
unsigned int srclen)
@@ -47,8 +46,8 @@ static void poly1305_blocks(struct poly1305_desc_ctx *dctx, const u8 *src,
srclen / POLY1305_BLOCK_SIZE, 1);
-int crypto_poly1305_update(struct shash_desc *desc,
- const u8 *src, unsigned int srclen)
+static int crypto_poly1305_update(struct shash_desc *desc,
+ const u8 *src, unsigned int srclen)
struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
unsigned int bytes;
@@ -80,9 +79,8 @@ int crypto_poly1305_update(struct shash_desc *desc,
return 0;
-int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
+static int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
struct poly1305_desc_ctx *dctx = shash_desc_ctx(desc);
@@ -92,7 +90,6 @@ int crypto_poly1305_final(struct shash_desc *desc, u8 *dst)
poly1305_final_generic(dctx, dst);
return 0;
static struct shash_alg poly1305_alg = {
.digestsize = POLY1305_DIGEST_SIZE,