Re: [PATCH v3 1/3] crypto: ti - Add support for SHA224/256/384/512 in DTHEv2 driver

[Herbert Xu]

On Thu, Feb 26, 2026 at 06:41:01PM +0530, T Pratham wrote:
>
> +static int dthe_hash_export(struct ahash_request *req, void *out)
> +{
> +	struct dthe_hash_req_ctx *rctx = ahash_request_ctx(req);
> +	struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
> +	struct dthe_tfm_ctx *ctx = crypto_ahash_ctx(tfm);
> +	union {
> +		u8 *u8;
> +		u64 *u64;
> +	} p = { .u8 = out };
> +
> +	memcpy(out, rctx->phash, ctx->phash_size);
> +	p.u8 += ctx->phash_size;
> +	put_unaligned(rctx->digestcnt[0], p.u64++);
> +	if (ctx->phash_size >= SHA512_DIGEST_SIZE)
> +		put_unaligned(rctx->digestcnt[1], p.u64++);
> +
> +	return 0;
> +}

The hash state must always be exported, even right after initialisation.
So you need to export the initial SHA stats if phash_available is
false.

Cheers,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
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