linux-kernel - Re: [PATCH v4 mvebu 3/4] firmware: turris-mox-rwtm: fail probing when firmware does not support hwrng

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Message-ID: <YKcPPnkl8GVlH8bv@lunn.ch>
Date:   Fri, 21 May 2021 03:39:10 +0200
From:   Andrew Lunn <andrew@...n.ch>
To:     Pali Rohár <pali@...nel.org>
Cc:     Gregory CLEMENT <gregory.clement@...tlin.com>,
        Marek Behún <kabel@...nel.org>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 mvebu 3/4] firmware: turris-mox-rwtm: fail probing
 when firmware does not support hwrng

On Thu, May 20, 2021 at 01:35:19PM +0200, Pali Rohár wrote:
> When Marvell's rWTM firmware, which does not support the GET_RANDOM
> command, is used, kernel prints an error message
>   hwrng: no data available
> every 10 seconds.
> 
> Fail probing of this driver if the rWTM firmware does not support the
> GET_RANDOM command.
> 
> Signed-off-by: Pali Rohár <pali@...nel.org>
> Signed-off-by: Marek Behún <kabel@...nel.org>
> Fixes: 389711b37493 ("firmware: Add Turris Mox rWTM firmware driver")

Reviewed-by: Andrew Lunn <andrew@...n.ch>

    Andrew