linux-kernel - Re: [PATCH] kdb: Make the internal env 'KDBFLAGS' undefinable

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Date:   Sat, 16 May 2020 15:19:28 +0800
From:   "liwei (GF)" <liwei391@...wei.com>
To:     Doug Anderson <dianders@...omium.org>
CC:     Jason Wessel <jason.wessel@...driver.com>,
        Daniel Thompson <daniel.thompson@...aro.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        <kgdb-bugreport@...ts.sourceforge.net>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] kdb: Make the internal env 'KDBFLAGS' undefinable

Hi Douglas,

On 2020/5/14 7:41, Doug Anderson wrote:

>> -       }
>> +       } else if (strcmp(argv[1], "KDBFLAGS") == 0)
>> +               return KDB_NOPERM;
> 
> One slight nit is that my personal preference is that if one half of
> an "if/else" needs braces then both halves should have braces.  I
Thanks for spotting it. Refer to Documentation/process/coding-style.rst, i
will fix it in the v2.

> don't know what Daniel and Jason's policies are, though.  In any case,
> not that I've ever used the KDBDEBUG functionality, but your change
> seems sane.  Without it if I set "KDBDEBUG" and "KDBFLAGS" and then
> type "env" I see the flags listed twice, but one is real and one is
> fake.
> 
> Reviewed-by: Douglas Anderson <dianders@...omium.org>
> 
> -Doug
> 

Thanks,
Wei