Re: [PATCH v2 4/5] agents: add a skill to find other instances of a fixed bug

[Alexei Starovoitov]

On Fri, Oct 16, 2026 at 02:06 PM Sasha Levin <sashal@xxxxxxxxxx> wrote:
> What I had in mind was the kind of bug our scripts/coccinelle/ rules look for.

For kfree_mismatch.cocci kind, yes. Each site is its own bug.
But the other example in the guide is "a missing put when leaving a loop".
That's iterators/for_each_child.cocci. It was fixed one driver at a time
for years until for_each_child_of_node_scoped() made the put automatic.

> I agree that fixing the interface is better, but do we want to push all these
> agents there?

To report it, yes. The skill is read-only anyway.
Whether to change the interface is for the human to decide.

> So I think it should be a balance. When the skill finds the same defect
> in several places, it should also ask whether the interface invites the
> mistake, and if so report that the fix belongs there instead of handing
> back a list for N maintainers

Makes sense to me.