On Tue, Dec 26, 2017 at 04:47:55PM +0900, Masami Hiramatsu wrote:

Since error-injection framework is not limited to be used
by kprobes, nor bpf. Other kernel subsystems can use it
freely for checking safeness of error-injection, e.g.
livepatch, ftrace etc.
So this separate error-injection framework from kprobes.

Some differences has been made:

- "kprobe" word is removed from any APIs/structures.
- BPF_ALLOW_ERROR_INJECTION() is renamed to
  ALLOW_ERROR_INJECTION() since it is not limited for BPF too.
- CONFIG_FUNCTION_ERROR_INJECTION is the config item of this
  feature. It is automatically enabled if the arch supports
  error injection feature for kprobe or ftrace etc.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
  Changes in v2:
   - Fix the override function name to override_function_with_return()
   - Show only function name in the list, user don't have to care about
     it's size, since function override only happens at the entry.

looks like nice cleanup.
Acked-by: Alexei Starovoitov <ast@kernel.org>