Re: [PATCH 0/3] powerpc/module_64: Fix _mcount() stub

Naveen N. Rao wrote:

This series addresses the crash reported by Qian Cai on ppc64le with 
-mprofile-kernel here:
https://lore.kernel.org/r/15AC5B0E-A221-4B8C-9039-FA96B8EF7C88@lca.pw (local)

While fixing patch_instruction() should address the crash, we should 
still change the default stub we setup for _mcount() for cases where a 
kernel is built without ftrace.

I notice that I didn't write that properly yesterday. I meant that this 
is required for cases where ftrace gets disabled for any reason, 
resulting in the default calls to _mcount() remaining in the kernel 
modules.

- Naveen