linux-kernel - Re: [PATCH] merge_config.sh: Add option for allmodconfig

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Message-ID: <538733b2-19af-9a66-f8d2-03e0f6ca7b25@huawei.com>
Date:   Tue, 7 Jan 2020 09:19:52 +0000
From:   John Garry <john.garry@...wei.com>
To:     Masahiro Yamada <masahiroy@...nel.org>
CC:     Linux Kbuild mailing list <linux-kbuild@...r.kernel.org>,
        "Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
        Anders Roxell <anders.roxell@...aro.org>
Subject: Re: [PATCH] merge_config.sh: Add option for allmodconfig

On 06/01/2020 18:04, Masahiro Yamada wrote:
> On Mon, Jan 6, 2020 at 6:18 PM John Garry <john.garry@...wei.com> wrote:
>>
>> On 10/12/2019 12:09, John Garry wrote:
>>
>> Hi Masahiro,
>>
>> Could you please consider this patch?
>>
>> Thanks,
>> John
>>
>>> Recently there has been some work in reporting and fixing bugs in booting
>>> an allmodconfig kernel - here are a few examples:
>>>
>>> https://lore.kernel.org/linux-edac/304df85b-8b56-b77e-1a11-aa23769f2e7c@huawei.com/T/#t
>>> https://lore.kernel.org/linux-ide/bdf02e03-86a1-3d35-2908-28187f504495@huawei.com/T/#t
>>> https://lore.kernel.org/netdev/CADYN=9LCPfbpwdTWKw03B22-y3Text=RWXW7XP7wJBHYsMOgrA@mail.gmail.com/
>>> https://sourceforge.net/p/openipmi/mailman/message/36871567/
>>>
>>> If we want to boot an allmodconfig kernel we may still want to force some
>>> loadable modules built-in, like UART drivers. Or just still turn off some
>>> configs.
> 
> 
> I do not understand why you need to use merge_config.sh
> for this purpose.
> 
> KCONFIG_ALLCONFIG=<path-to-your-config-fragment> make allmodconfig
> 
> should work.
> 
> 

Right, I could use that. But generally some people like to use 
merge_config.sh directly:

./scripts/kconfig/merge_config.sh [-a] fragment

so nice to have -a option for completeness.

Thanks,
john