On 12/03/2018 03:40 AM, Paolo Abeni wrote:
> This header define a bunch of helpers that allow avoiding the
> retpoline overhead when calling builtin functions via function pointers.
> It boils down to explicitly comparing the function pointers to
> known builtin functions and eventually invoke directly the latter.
>
> The macros defined here implement the boilerplate for the above schema
> and will be used by the next patches.
>
> rfc -> v1:
> - use branch prediction hint, as suggested by Eric
>
> Suggested-by: Eric Dumazet <Eric Dumazet [email protected]>
> Signed-off-by: Paolo Abeni <[email protected]>
> ---
> include/linux/indirect_call_wrapper.h | 77 +++++++++++++++++++++++++++
> 1 file changed, 77 insertions(+)
> create mode 100644 include/linux/indirect_call_wrapper.h
This needs to be discussed more broadly, please include lkml
Also please include Paul Turner <[email protected]> in the discussion, since he
was
the inventor of this idea.
