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118 lines
4.1 KiB
Diff
118 lines
4.1 KiB
Diff
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From 7d9521cad6474d45e9056176982e6da54d40bc19 Mon Sep 17 00:00:00 2001
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From: Eric Biggers <ebiggers@google.com>
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Date: Sun, 22 Oct 2023 01:10:42 -0700
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Subject: [PATCH 008/116] crypto: starfive - remove unnecessary alignmask for
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ahashes
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The crypto API's support for alignmasks for ahash algorithms is nearly
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useless, as its only effect is to cause the API to align the key and
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result buffers. The drivers that happen to be specifying an alignmask
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for ahash rarely actually need it. When they do, it's easily fixable,
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especially considering that these buffers cannot be used for DMA.
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In preparation for removing alignmask support from ahash, this patch
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makes the starfive driver no longer use it. This driver did actually
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rely on it, but only for storing to the result buffer using int stores
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in starfive_hash_copy_hash(). This patch makes
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starfive_hash_copy_hash() use put_unaligned() instead. (It really
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should use a specific endianness, but that's an existing bug.)
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Signed-off-by: Eric Biggers <ebiggers@google.com>
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Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
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---
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drivers/crypto/starfive/jh7110-hash.c | 13 ++-----------
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1 file changed, 2 insertions(+), 11 deletions(-)
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--- a/drivers/crypto/starfive/jh7110-hash.c
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+++ b/drivers/crypto/starfive/jh7110-hash.c
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@@ -209,7 +209,8 @@ static int starfive_hash_copy_hash(struc
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data = (u32 *)req->result;
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for (count = 0; count < mlen; count++)
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- data[count] = readl(ctx->cryp->base + STARFIVE_HASH_SHARDR);
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+ put_unaligned(readl(ctx->cryp->base + STARFIVE_HASH_SHARDR),
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+ &data[count]);
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return 0;
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}
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@@ -628,7 +629,6 @@ static struct ahash_engine_alg algs_sha2
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CRYPTO_ALG_NEED_FALLBACK,
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.cra_blocksize = SHA224_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct starfive_cryp_ctx),
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- .cra_alignmask = 3,
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.cra_module = THIS_MODULE,
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}
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},
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@@ -658,7 +658,6 @@ static struct ahash_engine_alg algs_sha2
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CRYPTO_ALG_NEED_FALLBACK,
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.cra_blocksize = SHA224_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct starfive_cryp_ctx),
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- .cra_alignmask = 3,
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.cra_module = THIS_MODULE,
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}
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},
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@@ -687,7 +686,6 @@ static struct ahash_engine_alg algs_sha2
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CRYPTO_ALG_NEED_FALLBACK,
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.cra_blocksize = SHA256_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct starfive_cryp_ctx),
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- .cra_alignmask = 3,
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.cra_module = THIS_MODULE,
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}
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},
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@@ -717,7 +715,6 @@ static struct ahash_engine_alg algs_sha2
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CRYPTO_ALG_NEED_FALLBACK,
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.cra_blocksize = SHA256_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct starfive_cryp_ctx),
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- .cra_alignmask = 3,
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.cra_module = THIS_MODULE,
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}
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},
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@@ -746,7 +743,6 @@ static struct ahash_engine_alg algs_sha2
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CRYPTO_ALG_NEED_FALLBACK,
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.cra_blocksize = SHA384_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct starfive_cryp_ctx),
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- .cra_alignmask = 3,
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.cra_module = THIS_MODULE,
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}
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},
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@@ -776,7 +772,6 @@ static struct ahash_engine_alg algs_sha2
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CRYPTO_ALG_NEED_FALLBACK,
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.cra_blocksize = SHA384_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct starfive_cryp_ctx),
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- .cra_alignmask = 3,
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.cra_module = THIS_MODULE,
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}
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},
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@@ -805,7 +800,6 @@ static struct ahash_engine_alg algs_sha2
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CRYPTO_ALG_NEED_FALLBACK,
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.cra_blocksize = SHA512_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct starfive_cryp_ctx),
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- .cra_alignmask = 3,
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.cra_module = THIS_MODULE,
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}
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},
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@@ -835,7 +829,6 @@ static struct ahash_engine_alg algs_sha2
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CRYPTO_ALG_NEED_FALLBACK,
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.cra_blocksize = SHA512_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct starfive_cryp_ctx),
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- .cra_alignmask = 3,
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.cra_module = THIS_MODULE,
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}
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},
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@@ -864,7 +857,6 @@ static struct ahash_engine_alg algs_sha2
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CRYPTO_ALG_NEED_FALLBACK,
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.cra_blocksize = SM3_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct starfive_cryp_ctx),
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- .cra_alignmask = 3,
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.cra_module = THIS_MODULE,
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}
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},
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@@ -894,7 +886,6 @@ static struct ahash_engine_alg algs_sha2
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CRYPTO_ALG_NEED_FALLBACK,
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.cra_blocksize = SM3_BLOCK_SIZE,
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.cra_ctxsize = sizeof(struct starfive_cryp_ctx),
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- .cra_alignmask = 3,
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.cra_module = THIS_MODULE,
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}
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},
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