[PATCH v4 0/2] tracing: Move non-trace_printk prototypes into trace_controls.h

Steven Rostedt <[email protected]> Thu, 25 Jun 2026 06:40:07 -0400

Newsgroups	gmane.linux.ports.ppc.embedded,gmane.linux.kernel,gmane.linux.documentation,gmane.linux.kbuild.devel,gmane.comp.video.dri.devel,gmane.linux.ports.arm.kernel,gmane.linux.drivers.rdma,gmane.linux.usb.general,gmane.comp.file-systems.ext4,gmane.linux.nfs,gmane.comp.emulators.kvm.devel,gmane.comp.freedesktop.xorg.drivers.intel
Message-ID	<[email protected]>

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 v3: https://lore.kernel.org/all/[email protected]/

- Always include trace_controls.h in rcu.h (kernel test robot)

  There are other configs that may include tracing_off() in rcu.h besides
  the one that had the include of trace_controls.h. Just always include
  it in that header to be safe.

Steven Rostedt (2):
      tracing: Move non-trace_printk prototypes into trace_controls.h
      tracing: Remove trace_printk.h from kernel.h

----
 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      |  1 +
 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                       |  1 +
 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, 82 insertions(+), 55 deletions(-)
 create mode 100644 include/linux/trace_controls.h