On (21/06/03 19:27), Peter Zijlstra wrote: > On Fri, Jun 04, 2021 at 01:43:15AM +0900, Sergey Senozhatsky wrote: [..] > > > > +void kvm_arch_pm_notifier(struct kvm *kvm) > > +{ > > +} > > + > > long kvm_arch_vm_ioctl(struct file *filp, > > unsigned int ioctl, unsigned long arg) > > { > > What looks like you wants a __weak function. True. Thanks for the suggestion. I thought about it, but I recalled that tglx had __strong opinions on __weak functions.