On Tue, 7 Nov 2023 10:49:24 +0900
Masami Hiramatsu (Google) [off-list ref] wrote:

quoted

I've changed this, because fprobe entry handler is not called via
fgraph without this. But maybe I have to set correct gops->ops.func
after init?  

I confirmed that this is right because it is introduced by
0c0593b45c9b ("x86/ftrace: Make function graph use ftrace directly")
which replaces ftrace_stub with ftrace_graph_func (which automatically
switched by architecture)

Agreed.

-- Steve