linux-kernel - Re: [PATCH 5/8] staging: ccree: fold common code into function

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Date:   Tue, 7 Nov 2017 13:40:31 +0300
From:   Dan Carpenter <dan.carpenter@...cle.com>
To:     Gilad Ben-Yossef <gilad@...yossef.com>
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org,
        driverdev-devel@...uxdriverproject.org,
        linux-crypto@...r.kernel.org, Ofir Drang <ofir.drang@....com>
Subject: Re: [PATCH 5/8] staging: ccree: fold common code into function

On Tue, Nov 07, 2017 at 09:40:01AM +0000, Gilad Ben-Yossef wrote:
> @@ -669,21 +690,12 @@ void cc_unmap_aead_request(struct device *dev, struct aead_request *req)
>  	}
>  	if (drvdata->coherent &&
>  	    (areq_ctx->gen_ctx.op_type == DRV_CRYPTO_DIRECTION_DECRYPT) &&
> -	    likely(req->src == req->dst)) {
> -		u32 size_to_skip = req->assoclen;
> -
> -		if (areq_ctx->is_gcm4543)
> -			size_to_skip += crypto_aead_ivsize(tfm);
> +	    likely(req->src == req->dst))

Don't remove the curly braces from this one.  Multi-line indents get
curly braces for readability.

>  
> -		/* copy mac to a temporary location to deal with possible
> +		/* copy back mac from temporary location to deal with possible
>  		 * data memory overriding that caused by cache coherence problem.
>  		 */
> -		cc_copy_sg_portion(dev, areq_ctx->backup_mac, req->src,
> -				   (size_to_skip + req->cryptlen -
> -				    areq_ctx->req_authsize),
> -				   (size_to_skip + req->cryptlen),
> -				   SSI_SG_FROM_BUF);
> -	}
> +		cc_copy_mac(dev, req, SSI_SG_FROM_BUF);
>  }

regards,
dan carpenter