Re: [PATCH -tip v8 02/13] kprobes: treewide: Replace arch_deref_entry_point() with dereference_symbo

Ingo Molnar
2021-07-05T07:48:09Z

* Masami Hiramatsu <mhiramat@kernel.org> wrote:

> Replace arch_deref_entry_point() with dereference_symbol_descriptor()
> because those are doing same thing.
>
> Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
> Tested-by: Andrii Nakryik <andrii@kernel.org>

A better changelog:

~15 years ago kprobes grew the 'arch_deref_entry_point()' __weak function:

3d7e33825d87: ("jprobes: make jprobes a little safer for users")

But this is just open-coded dereference_symbol_descriptor() in essence, and
its obscure nature was causing bugs.

Just use the real thing.

Thanks,

Ingo