From: Andrew Lunn <andrew@lunn.ch>
To: "Pali Rohár" <pali@kernel.org>
Cc: "Gregory CLEMENT" <gregory.clement@bootlin.com>,
"Marek Behún" <kabel@kernel.org>,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH v3 mvebu + mvebu/dt64 3/6] firmware: turris-mox-rwtm: fail probing when firmware does not support hwrng
Date: Wed, 12 May 2021 02:56:09 +0200 [thread overview]
Message-ID: <YJsnqUjJMehtbqgS@lunn.ch> (raw)
In-Reply-To: <20210506090802.14268-3-pali@kernel.org>
On Thu, May 06, 2021 at 11:07:59AM +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.
>
> This makes it possible to put this driver's compatible into generic
> armada-37xx device tree, to be available for other Armada 3720 devices
> besides Turris MOX. If they use the rWTM firmware from CZ.NIC, they will
> have HWRNG available, and if not, the driver won't be complaining.
We start getting into questions of if this is relevant for stable.
Running Turris MOX with plain Marvell rWTM will spam the log. So i
would say it is a fix, for that situation.
However, i would drop the second part of the description. Making the
Turris MOX firmware work on none Turris MOX hardware is a new feature,
and so not applicable to stable.
Andrew
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next prev parent reply other threads:[~2021-05-12 0:57 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-08 15:37 [PATCH mvebu + mvebu/dt64 1/4] firmware: turris-mox-rwtm: fix reply status decoding function Marek Behún
2021-03-08 15:37 ` [PATCH mvebu + mvebu/dt64 2/4] firmware: turris-mox-rwtm: report failures better Marek Behún
2021-03-08 15:37 ` [PATCH mvebu + mvebu/dt64 3/4] firmware: turris-mox-rwtm: fail probing when firmware does not support hwrng Marek Behún
2021-03-08 15:37 ` [PATCH mvebu + mvebu/dt64 4/4] arm64: dts: marvell: armada-37xx: move firmware node to generic dtsi file Marek Behún
2021-03-12 8:58 ` Gregory CLEMENT
2021-03-12 9:10 ` Marek Behún
2021-03-12 14:48 ` Andrew Lunn
2021-03-12 15:17 ` Marek Behún
2021-03-12 15:53 ` Andrew Lunn
2021-03-12 16:18 ` Pali Rohár
2021-03-12 16:32 ` Marek Behún
2021-03-15 10:14 ` Pali Rohár
2021-03-15 12:08 ` Andrew Lunn
2021-04-26 18:36 ` Pali Rohár
2021-04-26 19:52 ` Andrew Lunn
2021-04-29 8:36 ` [PATCH v2 mvebu + mvebu/dt64 1/6] firmware: turris-mox-rwtm: fix reply status decoding function Pali Rohár
2021-04-29 8:36 ` [PATCH v2 mvebu + mvebu/dt64 2/6] firmware: turris-mox-rwtm: report failures better Pali Rohár
2021-04-29 8:36 ` [PATCH v2 mvebu + mvebu/dt64 3/6] firmware: turris-mox-rwtm: fail probing when firmware does not support hwrng Pali Rohár
2021-04-29 8:36 ` [PATCH v2 mvebu + mvebu/dt64 4/6] firmware: turris-mox-rwtm: show message about HWRNG registration Pali Rohár
2021-04-29 8:36 ` [PATCH v2 mvebu + mvebu/dt64 5/6] firmware: turris-mox-rwtm: add marvell, armada-3700-rwtm-firmware compatible string Pali Rohár
2021-04-29 8:36 ` [PATCH v2 mvebu + mvebu/dt64 6/6] arm64: dts: marvell: armada-37xx: move firmware node to generic dtsi file Pali Rohár
2021-05-03 12:22 ` [PATCH v2 mvebu + mvebu/dt64 1/6] firmware: turris-mox-rwtm: fix reply status decoding function Andrew Lunn
2021-05-05 16:04 ` Marek Behún
2021-05-05 16:20 ` Andrew Lunn
2021-05-11 21:46 ` Pali Rohár
2021-05-06 9:07 ` [PATCH v3 " Pali Rohár
2021-05-06 9:07 ` [PATCH v3 mvebu + mvebu/dt64 2/6] firmware: turris-mox-rwtm: report failures better Pali Rohár
2021-05-06 9:07 ` [PATCH v3 mvebu + mvebu/dt64 3/6] firmware: turris-mox-rwtm: fail probing when firmware does not support hwrng Pali Rohár
2021-05-12 0:56 ` Andrew Lunn [this message]
2021-05-20 11:38 ` Pali Rohár
2021-05-06 9:08 ` [PATCH v3 mvebu + mvebu/dt64 4/6] firmware: turris-mox-rwtm: show message about HWRNG registration Pali Rohár
2021-05-06 9:08 ` [PATCH v3 mvebu + mvebu/dt64 5/6] firmware: turris-mox-rwtm: add marvell, armada-3700-rwtm-firmware compatible string Pali Rohár
2021-05-06 9:08 ` [PATCH v3 mvebu + mvebu/dt64 6/6] arm64: dts: marvell: armada-37xx: move firmware node to generic dtsi file Pali Rohár
2021-05-12 0:59 ` Andrew Lunn
2021-05-20 11:40 ` Pali Rohár
2021-05-12 0:49 ` [PATCH v3 mvebu + mvebu/dt64 1/6] firmware: turris-mox-rwtm: fix reply status decoding function Andrew Lunn
2021-05-20 11:35 ` [PATCH v4 mvebu 0/4] firmware: turris-mox-rwtm: fixups Pali Rohár
2021-05-20 11:35 ` [PATCH v4 mvebu 1/4] firmware: turris-mox-rwtm: fix reply status decoding function Pali Rohár
2021-05-20 11:35 ` [PATCH v4 mvebu 2/4] firmware: turris-mox-rwtm: report failures better Pali Rohár
2021-05-21 1:38 ` Andrew Lunn
2021-05-20 11:35 ` [PATCH v4 mvebu 3/4] firmware: turris-mox-rwtm: fail probing when firmware does not support hwrng Pali Rohár
2021-05-21 1:39 ` Andrew Lunn
2021-05-20 11:35 ` [PATCH v4 mvebu 4/4] firmware: turris-mox-rwtm: show message about HWRNG registration Pali Rohár
2021-05-21 1:40 ` Andrew Lunn
2021-06-17 13:06 ` [PATCH v4 mvebu 0/4] firmware: turris-mox-rwtm: fixups Gregory CLEMENT
2021-07-07 18:14 ` Pali Rohár
2021-07-23 12:45 ` Gregory CLEMENT
2021-07-23 12:47 ` Pali Rohár
2021-05-20 11:38 ` [PATCH v4 mvebu + mvebu/dt64 0/2] firmware: turris-mox-rwtm: new compatible string Pali Rohár
2021-05-20 11:38 ` [PATCH v4 mvebu + mvebu/dt64 1/2] firmware: turris-mox-rwtm: add marvell, armada-3700-rwtm-firmware " Pali Rohár
2021-05-21 1:41 ` [PATCH v4 mvebu + mvebu/dt64 1/2] firmware: turris-mox-rwtm: add marvell,armada-3700-rwtm-firmware " Andrew Lunn
2021-06-17 13:07 ` Gregory CLEMENT
2021-05-20 11:38 ` [PATCH v4 mvebu + mvebu/dt64 2/2] arm64: dts: marvell: armada-37xx: move firmware node to generic dtsi file Pali Rohár
2021-05-21 1:42 ` Andrew Lunn
2021-06-17 13:08 ` Gregory CLEMENT
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