From: Eric Biggers <ebiggers@xxxxxxxxxx> 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 starfive driver no longer use it. This driver did actually rely on it, but only for storing to the result buffer using int stores in starfive_hash_copy_hash(). This patch makes starfive_hash_copy_hash() use put_unaligned() instead. (It really should use a specific endianness, but that's an existing bug.) Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx> --- drivers/crypto/starfive/jh7110-hash.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) diff --git a/drivers/crypto/starfive/jh7110-hash.c b/drivers/crypto/starfive/jh7110-hash.c index cc7650198d703..b6d1808012ca7 100644 --- a/drivers/crypto/starfive/jh7110-hash.c +++ b/drivers/crypto/starfive/jh7110-hash.c @@ -202,21 +202,22 @@ static int starfive_hash_copy_hash(struct ahash_request *req) int count, *data; int mlen; if (!req->result) return 0; mlen = rctx->digsize / sizeof(u32); data = (u32 *)req->result; for (count = 0; count < mlen; count++) - data[count] = readl(ctx->cryp->base + STARFIVE_HASH_SHARDR); + put_unaligned(readl(ctx->cryp->base + STARFIVE_HASH_SHARDR), + &data[count]); return 0; } void starfive_hash_done_task(unsigned long param) { struct starfive_cryp_dev *cryp = (struct starfive_cryp_dev *)param; int err = cryp->err; if (!err) @@ -621,21 +622,20 @@ static struct ahash_engine_alg algs_sha2_sm3[] = { .statesize = sizeof(struct sha256_state), .base = { .cra_name = "sha224", .cra_driver_name = "sha224-starfive", .cra_priority = 200, .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA224_BLOCK_SIZE, .cra_ctxsize = sizeof(struct starfive_cryp_ctx), - .cra_alignmask = 3, .cra_module = THIS_MODULE, } }, .op = { .do_one_request = starfive_hash_one_request, }, }, { .base.init = starfive_hash_init, .base.update = starfive_hash_update, .base.final = starfive_hash_final, @@ -651,21 +651,20 @@ static struct ahash_engine_alg algs_sha2_sm3[] = { .statesize = sizeof(struct sha256_state), .base = { .cra_name = "hmac(sha224)", .cra_driver_name = "sha224-hmac-starfive", .cra_priority = 200, .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA224_BLOCK_SIZE, .cra_ctxsize = sizeof(struct starfive_cryp_ctx), - .cra_alignmask = 3, .cra_module = THIS_MODULE, } }, .op = { .do_one_request = starfive_hash_one_request, }, }, { .base.init = starfive_hash_init, .base.update = starfive_hash_update, .base.final = starfive_hash_final, @@ -680,21 +679,20 @@ static struct ahash_engine_alg algs_sha2_sm3[] = { .statesize = sizeof(struct sha256_state), .base = { .cra_name = "sha256", .cra_driver_name = "sha256-starfive", .cra_priority = 200, .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA256_BLOCK_SIZE, .cra_ctxsize = sizeof(struct starfive_cryp_ctx), - .cra_alignmask = 3, .cra_module = THIS_MODULE, } }, .op = { .do_one_request = starfive_hash_one_request, }, }, { .base.init = starfive_hash_init, .base.update = starfive_hash_update, .base.final = starfive_hash_final, @@ -710,21 +708,20 @@ static struct ahash_engine_alg algs_sha2_sm3[] = { .statesize = sizeof(struct sha256_state), .base = { .cra_name = "hmac(sha256)", .cra_driver_name = "sha256-hmac-starfive", .cra_priority = 200, .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA256_BLOCK_SIZE, .cra_ctxsize = sizeof(struct starfive_cryp_ctx), - .cra_alignmask = 3, .cra_module = THIS_MODULE, } }, .op = { .do_one_request = starfive_hash_one_request, }, }, { .base.init = starfive_hash_init, .base.update = starfive_hash_update, .base.final = starfive_hash_final, @@ -739,21 +736,20 @@ static struct ahash_engine_alg algs_sha2_sm3[] = { .statesize = sizeof(struct sha512_state), .base = { .cra_name = "sha384", .cra_driver_name = "sha384-starfive", .cra_priority = 200, .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA384_BLOCK_SIZE, .cra_ctxsize = sizeof(struct starfive_cryp_ctx), - .cra_alignmask = 3, .cra_module = THIS_MODULE, } }, .op = { .do_one_request = starfive_hash_one_request, }, }, { .base.init = starfive_hash_init, .base.update = starfive_hash_update, .base.final = starfive_hash_final, @@ -769,21 +765,20 @@ static struct ahash_engine_alg algs_sha2_sm3[] = { .statesize = sizeof(struct sha512_state), .base = { .cra_name = "hmac(sha384)", .cra_driver_name = "sha384-hmac-starfive", .cra_priority = 200, .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA384_BLOCK_SIZE, .cra_ctxsize = sizeof(struct starfive_cryp_ctx), - .cra_alignmask = 3, .cra_module = THIS_MODULE, } }, .op = { .do_one_request = starfive_hash_one_request, }, }, { .base.init = starfive_hash_init, .base.update = starfive_hash_update, .base.final = starfive_hash_final, @@ -798,21 +793,20 @@ static struct ahash_engine_alg algs_sha2_sm3[] = { .statesize = sizeof(struct sha512_state), .base = { .cra_name = "sha512", .cra_driver_name = "sha512-starfive", .cra_priority = 200, .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA512_BLOCK_SIZE, .cra_ctxsize = sizeof(struct starfive_cryp_ctx), - .cra_alignmask = 3, .cra_module = THIS_MODULE, } }, .op = { .do_one_request = starfive_hash_one_request, }, }, { .base.init = starfive_hash_init, .base.update = starfive_hash_update, .base.final = starfive_hash_final, @@ -828,21 +822,20 @@ static struct ahash_engine_alg algs_sha2_sm3[] = { .statesize = sizeof(struct sha512_state), .base = { .cra_name = "hmac(sha512)", .cra_driver_name = "sha512-hmac-starfive", .cra_priority = 200, .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SHA512_BLOCK_SIZE, .cra_ctxsize = sizeof(struct starfive_cryp_ctx), - .cra_alignmask = 3, .cra_module = THIS_MODULE, } }, .op = { .do_one_request = starfive_hash_one_request, }, }, { .base.init = starfive_hash_init, .base.update = starfive_hash_update, .base.final = starfive_hash_final, @@ -857,21 +850,20 @@ static struct ahash_engine_alg algs_sha2_sm3[] = { .statesize = sizeof(struct sm3_state), .base = { .cra_name = "sm3", .cra_driver_name = "sm3-starfive", .cra_priority = 200, .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SM3_BLOCK_SIZE, .cra_ctxsize = sizeof(struct starfive_cryp_ctx), - .cra_alignmask = 3, .cra_module = THIS_MODULE, } }, .op = { .do_one_request = starfive_hash_one_request, }, }, { .base.init = starfive_hash_init, .base.update = starfive_hash_update, .base.final = starfive_hash_final, @@ -887,21 +879,20 @@ static struct ahash_engine_alg algs_sha2_sm3[] = { .statesize = sizeof(struct sm3_state), .base = { .cra_name = "hmac(sm3)", .cra_driver_name = "sm3-hmac-starfive", .cra_priority = 200, .cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_TYPE_AHASH | CRYPTO_ALG_NEED_FALLBACK, .cra_blocksize = SM3_BLOCK_SIZE, .cra_ctxsize = sizeof(struct starfive_cryp_ctx), - .cra_alignmask = 3, .cra_module = THIS_MODULE, } }, .op = { .do_one_request = starfive_hash_one_request, }, }, }; int starfive_hash_register_algs(void) -- 2.42.0