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>
