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References: <laYy.1633708368952635911.w8hA@lists.yoctoproject.org>
In-Reply-To: <laYy.1633708368952635911.w8hA@lists.yoctoproject.org>
From: Bruce Ashfield <bruce.ashfield@gmail.com>
Date: Fri, 8 Oct 2021 22:18:35 -0400
Message-ID: 
 <CADkTA4PwLNXJoU3ZdnE=0pa3UA0tpewNU1-yrr+M45EHp5dHwQ@mail.gmail.com>
Subject: Re: [yocto] LINUX_VERSION_EXTENSION has no effect #yocto #kernel
 #dunfell
To: mrkozmic@hotmail.com
Cc: yocto <yocto@lists.yoctoproject.org>
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On Fri, Oct 8, 2021 at 11:52 AM <mrkozmic@hotmail.com> wrote:
>
> I have defined LINUX_VERSION_EXTENSION in my kernel recipe.
>
> I have no CONFIG_LOCALVERSION or CONFIG_LOCALVERSION_AUTO defined in my defconfig
>
> After i run bitbake -c kernel_configme <my kernel recipe> I can see in my .config file:
>
> CONFIG_LOCALVERSION=""
> # CONFIG_LOCALVERSION_AUTO is not set
>
> and at the very end:
>
> CONFIG_LOCALVERSION="<my extention>"
> So far so good.
>
> Then I execute  bitbake -c configure <my kernel recipe>
> and the .config file is changed. Now there is:
> CONFIG_LOCALVERSION=""
> CONFIG_LOCALVERSION_AUTO=y
> and there is no trace of CONFIG_LOCALVERSION="<my extention>"

Assuming what you are using as a kernel recipe is linux-yocto based,
the code that is adding the CONFIG_LOCALVERSION is a task that runs
after do_configure. So just running -c configure, it shouldn't be in
the .config (and the default kernel configure task, will copy your
defconfig -> .config, and then lets the kernel process it, so you will
have symbols in the .config that are not in your defconfig
explicitly).

If you can make your recipe available, I can probably offer more
specific comments.

Bruce

>
> Yocto: dunfell
> Kernel 5.4.70
>
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>
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