linux-kernel - Re: [PATCH] scsi: megaraid: cleanup formatting of megaraid

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Date:   Thu, 27 Jan 2022 21:31:08 -0800
From:   Tom Rix <trix@...hat.com>
To:     Joe Perches <joe@...ches.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Finn Thain <fthain@...ux-m68k.org>,
        Miguel Ojeda <ojeda@...nel.org>
Cc:     kashyap.desai@...adcom.com, sumit.saxena@...adcom.com,
        shivasharan.srikanteshwara@...adcom.com, jejb@...ux.ibm.com,
        martin.petersen@...cle.com, nathan@...nel.org,
        megaraidlinux.pdl@...adcom.com, linux-scsi@...r.kernel.org,
        linux-kernel@...r.kernel.org, llvm@...ts.linux.dev
Subject: Re: [PATCH] scsi: megaraid: cleanup formatting of megaraid


On 1/27/22 6:43 PM, Joe Perches wrote:
> On Thu, 2022-01-27 at 16:32 -0800, Tom Rix wrote:
>> On 1/27/22 2:47 PM, Nick Desaulniers wrote:
>>> + Miguel (the clang-format maintainer), Joe (checkpatch maintainer)
>>> These criticisms are worth reviewing.
>>>
>>> On Thu, Jan 27, 2022 at 2:38 PM Finn Thain <fthain@...ux-m68k.org> wrote:
>>>> On Thu, 27 Jan 2022, trix@...hat.com wrote:
>>>>
>>>>> From: Tom Rix <trix@...hat.com>
>>>>>
>>>>> checkpatch reports several hundred formatting errors. Run these files
>>>>> through clang-format and knock off some of them.
>>>>>
>>>> That method seems like a good recipe for endless churn unless checkpatch
>>>> and clang-format really agree about these style rules.
>>>>
>>>> Why use checkpatch to assess code style, if we could simply diff the
>>>> existing source with the output from clang-format... but it seems that
>>>> clang-format harms readability, makes indentation errors and uses
>>>> inconsistent style rules. Some examples:
>> Problems with clang-format should be fixed, I'll take a look.
>>
>> I was reviewing this file for another issue and could not get past how
>> horredously bad it was and really did not want to manually fix the 400+
>> formatting errors.  I will drop this patch and use the use these files
>> to verify the .clang-format .
> I think this is more an issue with clang-format than with checkpatch.
>
> If you have specific issues with what checkpatch reports for this
> file (or any other file), let me know.

Yes, I agree. Its a clang-format problem.

I will be looking to minimize the .clang-format settings to only those 
that agree with checkpatch.

Then add settings back in later if their problems can be worked out.

Tom