crypto: rockchip - remove unnecessary alignmask for ahashes

The crypto API's support for alignmasks for ahash algorithms is nearly
useless, as its only effect is to cause the API to align the key and
result buffers.  The drivers that happen to be specifying an alignmask
for ahash rarely actually need it.  When they do, it's easily fixable,
especially considering that these buffers cannot be used for DMA.

In preparation for removing alignmask support from ahash, this patch
makes the rockchip driver no longer use it.  This driver didn't actually
rely on it; it only writes to the result buffer in rk_hash_run(),
already using put_unaligned_le32().  And this driver only supports
unkeyed hash algorithms, so the key buffer need not be considered.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/drivers/crypto/rockchip/rk3288_crypto_ahash.c b/drivers/crypto/rockchip/rk3288_crypto_ahash.c
index 8c143180645e5bdd61d7a140838db295c9678b9c..1b13b4aa16ecc441a37266996f1b4aca6863a436 100644 (file)
--- a/drivers/crypto/rockchip/rk3288_crypto_ahash.c
+++ b/drivers/crypto/rockchip/rk3288_crypto_ahash.c
@@ -393,7 +393,6 @@ struct rk_crypto_tmp rk_ahash_sha1 = {
                                               CRYPTO_ALG_NEED_FALLBACK,
                                  .cra_blocksize = SHA1_BLOCK_SIZE,
                                  .cra_ctxsize = sizeof(struct rk_ahash_ctx),
-                                 .cra_alignmask = 3,
                                  .cra_module = THIS_MODULE,
                        }
                }
@@ -426,7 +425,6 @@ struct rk_crypto_tmp rk_ahash_sha256 = {
                                               CRYPTO_ALG_NEED_FALLBACK,
                                  .cra_blocksize = SHA256_BLOCK_SIZE,
                                  .cra_ctxsize = sizeof(struct rk_ahash_ctx),
-                                 .cra_alignmask = 3,
                                  .cra_module = THIS_MODULE,
                        }
                }
@@ -459,7 +457,6 @@ struct rk_crypto_tmp rk_ahash_md5 = {
                                               CRYPTO_ALG_NEED_FALLBACK,
                                  .cra_blocksize = SHA1_BLOCK_SIZE,
                                  .cra_ctxsize = sizeof(struct rk_ahash_ctx),
-                                 .cra_alignmask = 3,
                                  .cra_module = THIS_MODULE,
                        }
                }