Re: [PATCH sched_ext/for-6.13 2/2] sched_ext: Replace set_arg_maybe_null() with __nullable CFI stub tags

[Martin KaFai Lau]

On 10/23/24 5:55 PM, Tejun Heo wrote:
> ops.dispatch() and ops.yield() may be fed a NULL task_struct pointer.
> set_arg_maybe_null() is used to tell the verifier that they should be NULL
> checked before being dereferenced. BPF now has an a lot prettier way to
> express this - tagging arguments in CFI stubs with __nullable. Replace
> set_arg_maybe_null() with __nullable CFI stub tags.

Acked-by: Martin KaFai Lau <martin.lau@xxxxxxxxxx>