ahash_hmac_ctx
struct ahash_hmac_ctx *tctx = crypto_ahash_ctx(parent);
struct ahash_hmac_ctx *tctx = crypto_ahash_ctx(tfm);
struct ahash_hmac_ctx *tctx = crypto_ahash_ctx(tfm);
struct ahash_hmac_ctx *tctx = crypto_ahash_ctx(tfm);
struct ahash_hmac_ctx *tctx = crypto_ahash_ctx(tfm);
struct ahash_hmac_ctx *tctx = crypto_ahash_ctx(parent);
struct ahash_hmac_ctx *sctx = crypto_ahash_ctx(src);
struct ahash_hmac_ctx *dctx = crypto_ahash_ctx(dst);
struct ahash_hmac_ctx *tctx = crypto_ahash_ctx(parent);
inst->alg.halg.base.cra_ctxsize = sizeof(struct ahash_hmac_ctx) +