On Fri, 08 Dec 2023 22:00:39 +0530, Naveen N Rao wrote:

Early RFC.

This series attempts to address couple of issues with the existing
support for ftrace on powerpc, with a view towards improving performance
when ftrace is not enabled. See patch 6 for more details.

Patches 7 and 8 implement support for ftrace direct calls, through
adding support for DYNAMIC_FTRACE_WITH_CALL_OPS.

[...]

Patches 1, 3 and 4 applied to powerpc/next.

[1/9] powerpc/ftrace: Fix indentation in ftrace.h
      https://git.kernel.org/powerpc/c/2ec36570c3581285d15de672eaed10ce7e9218cd
[3/9] powerpc/ftrace: Remove nops after the call to ftrace_stub
      https://git.kernel.org/powerpc/c/ae24db43b3b427eb290b58d55179c32f0a7539d1
[4/9] powerpc/Kconfig: Select FUNCTION_ALIGNMENT_4B
      https://git.kernel.org/powerpc/c/b20f98e8b3deb50247603f0242ee2d1e38726635

cheers