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| author | Christian Lamparter <chunkeey@googlemail.com> | 2017-08-25 16:47:25 +0300 |
|---|---|---|
| committer | Herbert Xu <herbert@gondor.apana.org.au> | 2017-09-22 12:43:19 +0300 |
| commit | 9e0a0b3a192af20193f074ed2ad9dd85a2e48d00 (patch) | |
| tree | d47512495d1f5cf6bc26e3b283203d9f59feebde /drivers/crypto/amcc/crypto4xx_alg.c | |
| parent | 5d59ad6eea82ef8df92b4109615a0dde9d8093e9 (diff) | |
| download | linux-9e0a0b3a192af20193f074ed2ad9dd85a2e48d00.tar.xz | |
crypto: crypto4xx - pointer arithmetic overhaul
This patch improves the readability of various functions,
by replacing various void* pointers declarations with
their respective structs *. This makes it possible to go
for the eye-friendly array-indexing methods.
Signed-off-by: Christian Lamparter <chunkeey@googlemail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'drivers/crypto/amcc/crypto4xx_alg.c')
| -rw-r--r-- | drivers/crypto/amcc/crypto4xx_alg.c | 26 |
1 files changed, 12 insertions, 14 deletions
diff --git a/drivers/crypto/amcc/crypto4xx_alg.c b/drivers/crypto/amcc/crypto4xx_alg.c index c9597824a515..d08e4c94abed 100644 --- a/drivers/crypto/amcc/crypto4xx_alg.c +++ b/drivers/crypto/amcc/crypto4xx_alg.c @@ -134,7 +134,7 @@ static int crypto4xx_setkey_aes(struct crypto_ablkcipher *cipher, } } /* Setup SA */ - sa = (struct dynamic_sa_ctl *) ctx->sa_in; + sa = ctx->sa_in; set_dynamic_sa_command_0(sa, SA_NOT_SAVE_HASH, SA_NOT_SAVE_IV, SA_LOAD_HASH_FROM_SA, SA_LOAD_IV_FROM_STATE, @@ -159,7 +159,7 @@ static int crypto4xx_setkey_aes(struct crypto_ablkcipher *cipher, ctx->offset_to_sr_ptr = get_dynamic_sa_offset_state_ptr_field(sa); memcpy(ctx->sa_out, ctx->sa_in, ctx->sa_len * 4); - sa = (struct dynamic_sa_ctl *) ctx->sa_out; + sa = ctx->sa_out; sa->sa_command_0.bf.dir = DIR_OUTBOUND; return 0; @@ -248,8 +248,7 @@ static int crypto4xx_hash_alg_init(struct crypto_tfm *tfm, struct crypto_alg *alg = tfm->__crt_alg; struct crypto4xx_alg *my_alg = crypto_alg_to_crypto4xx_alg(alg); struct crypto4xx_ctx *ctx = crypto_tfm_ctx(tfm); - struct dynamic_sa_ctl *sa; - struct dynamic_sa_hash160 *sa_in; + struct dynamic_sa_hash160 *sa; int rc; ctx->dev = my_alg->dev; @@ -273,25 +272,24 @@ static int crypto4xx_hash_alg_init(struct crypto_tfm *tfm, crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm), sizeof(struct crypto4xx_ctx)); - sa = (struct dynamic_sa_ctl *) ctx->sa_in; - set_dynamic_sa_command_0(sa, SA_SAVE_HASH, SA_NOT_SAVE_IV, + sa = (struct dynamic_sa_hash160 *)ctx->sa_in; + set_dynamic_sa_command_0(&sa->ctrl, SA_SAVE_HASH, SA_NOT_SAVE_IV, SA_NOT_LOAD_HASH, SA_LOAD_IV_FROM_SA, SA_NO_HEADER_PROC, ha, SA_CIPHER_ALG_NULL, SA_PAD_TYPE_ZERO, SA_OP_GROUP_BASIC, SA_OPCODE_HASH, DIR_INBOUND); - set_dynamic_sa_command_1(sa, 0, SA_HASH_MODE_HASH, + set_dynamic_sa_command_1(&sa->ctrl, 0, SA_HASH_MODE_HASH, CRYPTO_FEEDBACK_MODE_NO_FB, SA_EXTENDED_SN_OFF, SA_SEQ_MASK_OFF, SA_MC_ENABLE, SA_NOT_COPY_PAD, SA_NOT_COPY_PAYLOAD, SA_NOT_COPY_HDR); ctx->direction = DIR_INBOUND; - sa->sa_contents.w = SA_HASH160_CONTENTS; - sa_in = (struct dynamic_sa_hash160 *) ctx->sa_in; /* Need to zero hash digest in SA */ - memset(sa_in->inner_digest, 0, sizeof(sa_in->inner_digest)); - memset(sa_in->outer_digest, 0, sizeof(sa_in->outer_digest)); - sa_in->state_ptr = ctx->state_record_dma_addr; - ctx->offset_to_sr_ptr = get_dynamic_sa_offset_state_ptr_field(sa); + memset(sa->inner_digest, 0, sizeof(sa->inner_digest)); + memset(sa->outer_digest, 0, sizeof(sa->outer_digest)); + sa->state_ptr = ctx->state_record_dma_addr; + ctx->offset_to_sr_ptr = + get_dynamic_sa_offset_state_ptr_field(&sa->ctrl); return 0; } @@ -302,7 +300,7 @@ int crypto4xx_hash_init(struct ahash_request *req) int ds; struct dynamic_sa_ctl *sa; - sa = (struct dynamic_sa_ctl *) ctx->sa_in; + sa = ctx->sa_in; ds = crypto_ahash_digestsize( __crypto_ahash_cast(req->base.tfm)); sa->sa_command_0.bf.digest_len = ds >> 2; |