[PATCH] Makefile: let 'make clean' remove files created by DEVICE_TREE_DEBUG

[Rasmus Villemoes]

On Thu, Jun 11 2026, "Marek Vasut" <marek.vasut at mailbox.org> wrote:

> On 6/11/26 4:08 PM, Rasmus Villemoes wrote:
>> Originally, 'make DEVICE_TREE_DEBUG=1' only generated extra output on
>> the console. But since 6cdd7597a2f ("kbuild: Produce diff between base
>> DT and U-Boot augmented DT if DEVICE_TREE_DEBUG=1"), that has also
>> left behind lots of files that clutter the repo and are hard to get
>> rid of manually.
>>
>> Make sure that a 'make clean' will remove those files, and add them to
>> .gitignore.
>>
>> Signed-off-by: Rasmus Villemoes <rv at rasmusvillemoes.dk>
>> ---
>>   .gitignore | 3 +++
>>   Makefile   | 1 +
>>   2 files changed, 4 insertions(+)
>
> This is nice, thank you.
>
>> diff --git a/.gitignore b/.gitignore
>> index d57d3be0291..0e09715cc60 100644
>> --- a/.gitignore
>> +++ b/.gitignore
>> @@ -16,6 +16,9 @@
>>   *.dtb
>>   *.dtbo
>>   *.dtb.S
>> +*.dtb.clean.dts
>> +*.dtb.diff
>> +*.dtb.full.dts
> Would it make sense to simply change this to *.dtb.* ? Or do you think
> that is too much ?

I think I'm leaning on the explicit mention of each suffix. Had there
already been a *.dtb.* pattern, I would probably not have noticed and
thus not been prompted to amend the 'make clean' rule, so I think it's
better that some potential future .dtb.foo artifact does show up in 'git
status' as an untracked file. But this is certainly not a strong
opinion, and I'd be fine either way.

Rasmus