linux-kernel - Re: [PATCH v3 3/6] crypto: Add Qcom prng driver

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Message-ID: <181d27ff-e935-ce50-fce2-b114d2d99bc0@kernel.org>
Date:   Wed, 4 Jul 2018 08:42:53 -0500
From:   Timur Tabi <timur@...nel.org>
To:     Vinod <vkoul@...nel.org>, Stephan Mueller <smueller@...onox.de>
Cc:     linux-crypto@...r.kernel.org, linux-kernel@...r.kernel.org,
        Bjorn Andersson <bjorn.andersson@...aro.org>,
        Matt Mackall <mpm@...enic.com>,
        Herbert Xu <herbert@...dor.apana.org.au>,
        Arnd Bergmann <arnd@...db.de>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-arm-msm@...r.kernel.org, Stephen Boyd <swboyd@...omium.org>,
        Timur Tabi <timur@...eaurora.org>
Subject: Re: [PATCH v3 3/6] crypto: Add Qcom prng driver

On 7/4/18 1:10 AM, Vinod wrote:
> Okay so I rechecked this, the hardware gives 32 bits of random data. I
> am thinking of splitting the word and updating by each byte. That way
> trailing zero can also be avoided which is the case now

The current driver only returns data in multiples of 4 bytes.  Why can't 
you keep that?