linux-kernel - Re: [PATCH v2 2/3] drivers: watchdog: Add StarFive Watchdog driver

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Message-ID: <c0b03600-13a9-b9e7-e4f3-701fd5b55c86@starfivetech.com>
Date:   Fri, 17 Feb 2023 10:30:28 +0800
From:   Xingyu Wu <xingyu.wu@...rfivetech.com>
To:     Guenter Roeck <linux@...ck-us.net>
CC:     <linux-riscv@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <linux-watchdog@...r.kernel.org>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Paul Walmsley <paul.walmsley@...ive.com>,
        "Palmer Dabbelt" <palmer@...belt.com>,
        Albert Ou <aou@...s.berkeley.edu>,
        "Philipp Zabel" <p.zabel@...gutronix.de>,
        Samin Guo <samin.guo@...rfivetech.com>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v2 2/3] drivers: watchdog: Add StarFive Watchdog driver

On 2023/2/16 22:57, Guenter Roeck wrote:
> On 2/15/23 23:11, Xingyu Wu wrote:
>> On 2023/2/2 6:46, Guenter Roeck wrote:
>>> On Mon, Dec 19, 2022 at 05:42:32PM +0800, Xingyu Wu wrote:
>>>> Add watchdog driver for the StarFive JH7110 SoC.
>>>>
>>>> Signed-off-by: Xingyu Wu <xingyu.wu@...rfivetech.com>
>>>> +
>>>> [...]
>>>> +
>>>> +static const struct watchdog_info starfive_wdt_ident = {
>>>> +    .options = OPTIONS,
>>>> +    .firmware_version = 0,
>>>
>>> It is not necessary to initilize a static variable with 0.
>>>
>>>> +    .identity = "StarFive Watchdog",
>>>> +};
>>
>> Hi Guenter,
>>
>> It would be a compilation error if drop the '0'. I found that other files
> 
> No.
> 
>> initialize this static variable as well.
>>
> 
> Ah, the old "others do it, so do I" argument.
> Sorry, that is not a valid argument.
> 

Can I assign ‘firmware_version’ to a macro definition in the probe?

Best regards,
Xingyu Wu