Updating env/kernel-config after rebasing/kernel version bump

Philip Prindeville philipp_subx at redfish-solutions.com
Wed Dec 28 12:21:15 PST 2022



> On Dec 28, 2022, at 1:14 PM, Robert Marko <robimarko at gmail.com> wrote:
> 
> On Wed, 28 Dec 2022 at 01:01, Philip Prindeville
> <philipp_subx at redfish-solutions.com> wrote:
>> 
>> 
>> 
>>> On Dec 27, 2022, at 4:50 PM, Robert Marko <robimarko at gmail.com> wrote:
>>> 
>>> On Wed, 28 Dec 2022 at 00:48, Philip Prindeville
>>> <philipp_subx at redfish-solutions.com> wrote:
>>>> 
>>>> Hi,
>>>> 
>>>> I originally set up my env/kernel-config a long time ago (like 2018) by hand, and since then the kernel has gone through several bumps.  How do I easily refresh it to pick up new stuff from target/linux/x86/64/config-${KVER} (where KVER=5.15 currently)?  Is there a handy script or make target to do this?
>>> 
>>> There is make kernel_menuconfig that will essentially give you the
>>> kernel menuconfig and refresh the config after saving.
>> 
>> 
>> Right, but what does that involve?  Will it pick up new symbols from the new kernel target?  If there's a new default in 5.15 that wasn't in 5.10, how does it find its way into my config?
>> 
>> I tried diffing target/linux/x86/64/config-5.15 and env/kernel-config and there's a whole lot of changes.
>> 
>> Or is env/kernel-config the delta from the defaults for any given kernel version in config-${KVER}?
> 
> I have to admit that I have not used the env script so far, so I dont
> know how it works.
> 
> Regards,
> Robert


I'd like to see something like scripts/diffconfig.sh done for the kernel-config ...

How are the files in target/linux/ combined to generate default state in the absence of kernel-config, anyway?

Thanks


>> 
>> 
>>> 
>>> Regards,
>>> Robert
>>>> 
>>>> Thanks,
>>>> 
>>>> -Philip
>>>> 
>>>> 
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>> 




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