This question might be worth asking in kernel Janitor mailing list. They also use a few tools for static code checking. On Fri, Jun 12, 2026 at 5:05 AM Agatha Isabelle Moreira <code@agatha.dev> wrote:

Hi,

The kernel documentation says that any function that uses more than 512 bytes on the stack is a candidate for change.

However, it doesn't say under what conditions (what config options).

I found 193 functions matching, some with stacks quite larger than that. I suspect this could be the result of some config options, maybe.

What would you recommend me checking?

-- Agatha Isabelle Moreira Systems Engineer | C

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