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SubjectReasons for oldconfig resetting config options to =m
When you set an option to `=y` but one of its dependencies is set to `=m`, then `make oldconfig` will reset it back to `=m` as well.

That makes sense, but does there exist a feature somewhere that can tell me explicitly when this happens, ideally with a reason like:

Resetting CONFIG_USB_STORAGE from =y to =m
because its dependency CONFIG_... is set to =m
Consequently also resetting the following dependent options from =y to =m:

This would help tuning kernel configs in situations where menuconfig is not appropriate, for example when working with diffs of configs.

Is there such tooling, or what do people use?


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