On (21/06/03 19:27), Peter Zijlstra wrote:

On Fri, Jun 04, 2021 at 01:43:15AM +0900, Sergey Senozhatsky wrote:

[..]

quoted

 
+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.