linux-kernel - Re: [PATCH v3] memory: dfl-emif: add the DFL EMIF private feature driver

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Message-ID: <20200921072311.GA6133@kozik-lap>
Date:   Mon, 21 Sep 2020 09:23:11 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Xu Yilun <yilun.xu@...el.com>
Cc:     mdf@...nel.org, linux-fpga@...r.kernel.org,
        linux-kernel@...r.kernel.org, trix@...hat.com, lgoncalv@...hat.com,
        Russ Weight <russell.h.weight@...el.com>
Subject: Re: [PATCH v3] memory: dfl-emif: add the DFL EMIF private feature
 driver

On Mon, Sep 21, 2020 at 01:31:20PM +0800, Xu Yilun wrote:
> This driver is for the EMIF private feature implemented under FPGA
> Device Feature List (DFL) framework. It is used to expose memory
> interface status information as well as memory clearing control.
> 
> The purpose of memory clearing block is to zero out all private memory
> when FPGA is to be reprogrammed. This gives users a reliable method to
> prevent potential data leakage.
> 
> Signed-off-by: Xu Yilun <yilun.xu@...el.com>
> Signed-off-by: Russ Weight <russell.h.weight@...el.com>
> ---
> v2: Adjust the position of this driver in Kconfig.
>     Improves the name of the Kconfig option.
>     Change the include dfl-bus.h to dfl.h, cause the previous patchset
>      renames the file.
>     Some minor fixes and comment improvement.
> v3: Adjust the position of the driver in Makefile.
> ---
>  .../ABI/testing/sysfs-bus-dfl-devices-emif         |  25 +++
>  drivers/memory/Kconfig                             |   9 +
>  drivers/memory/Makefile                            |   2 +
>  drivers/memory/dfl-emif.c                          | 207 +++++++++++++++++++++
>  4 files changed, 243 insertions(+)
>  create mode 100644 Documentation/ABI/testing/sysfs-bus-dfl-devices-emif
>  create mode 100644 drivers/memory/dfl-emif.c
> 

Hi Moritz,

Since this depends on dfl patches, I would need a stable tag with them
or you can take it directly:
Acked-by: Krzysztof Kozlowski <krzk@...nel.org>

Best regards,
Krzysztof