Re: [PATCH v2 0/2] tracing: Remove trace_printk.h from kernel.h

[Masami Hiramatsu (Google) <mhiramat@kernel.org>]

On Mon, 22 Jun 2026 09:07:39 -0400
Steven Rostedt <rostedt@kernel.org> wrote:

> 
> Remove trace_printk.h by creating a trace_controls.h for those places that
> need access to tracing prototypes like tracing_off() and for the places that
> need trace_printk() directly, to have it included directly.
> 
> Changse since v1: https://lore.kernel.org/all/20260621093430.264983361@kernel.org/
> 
> - Create a trace_controls.h header to move the prototypes into and not
>   include it back into kernel.h
> 
> - Just remove trace_printk.h from kernel.h with no alternative to keep the
>   previous behavior.
> 
> Steven Rostedt (2):
>       tracing: Move non-trace_printk prototypes into trace_controls.h
>       tracing: Remove trace_printk.h from kernel.h
> 

The series looks good to me.

Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>

for this series.

Thanks,

> ----
>  arch/powerpc/kvm/book3s_xics.c         |  1 +
>  arch/powerpc/xmon/xmon.c               |  1 +
>  arch/s390/kernel/ipl.c                 |  1 +
>  arch/s390/kernel/machine_kexec.c       |  1 +
>  drivers/gpu/drm/i915/gt/intel_gtt.h    |  1 +
>  drivers/gpu/drm/i915/i915_gem.h        |  2 ++
>  drivers/hwtracing/stm/dummy_stm.c      |  4 +++
>  drivers/infiniband/hw/hfi1/trace_dbg.h |  1 +
>  drivers/tty/sysrq.c                    |  1 +
>  drivers/usb/early/xhci-dbc.c           |  1 +
>  fs/ext4/inline.c                       |  1 +
>  include/linux/ftrace.h                 |  2 ++
>  include/linux/kernel.h                 |  1 -
>  include/linux/sunrpc/debug.h           |  1 +
>  include/linux/trace_controls.h         | 54 ++++++++++++++++++++++++++++++++
>  include/linux/trace_printk.h           | 56 ++--------------------------------
>  kernel/debug/debug_core.c              |  1 +
>  kernel/panic.c                         |  1 +
>  kernel/rcu/rcu.h                       |  2 ++
>  kernel/rcu/rcutorture.c                |  1 +
>  kernel/trace/ring_buffer_benchmark.c   |  1 +
>  kernel/trace/trace.h                   |  1 +
>  kernel/trace/trace_benchmark.c         |  1 +
>  lib/sys_info.c                         |  1 +
>  samples/fprobe/fprobe_example.c        |  1 +
>  samples/ftrace/ftrace-direct-too.c     |  1 -
>  samples/trace_printk/trace-printk.c    |  1 +
>  27 files changed, 86 insertions(+), 55 deletions(-)
>  create mode 100644 include/linux/trace_controls.h


-- 
Masami Hiramatsu (Google) <mhiramat@kernel.org>