On Tue, Nov 09, 2021 at 05:45:43PM +0100, Ard Biesheuvel wrote:
> static inline
> void __static_call_update(struct static_call_key *key, void *tramp, void *func)
> {
> + WRITE_ONCE(key->func, func ?: (void *)&__static_call_nop);
> }
Ha, yes, I suppose that ought to work.