[0/4] Detect and remove trace_printk

Message

Nicolas Boichat June 27, 2020, 7:03 a.m. UTC

trace_printk is meant as a debugging tool, and should not be
compiled into production code without specific debug Kconfig
options enabled or source code changes.

Patches 1 to 3 remove/disable trace_printk that should not
be enabled by default.

Patch 4 adds a config option that can be used to detect such
trace_printk at compile time (instead of printing a nasty
warning at runtime).

Nicolas Boichat (4):
  usb: cdns3: gadget: Replace trace_printk by dev_dbg
  media: atomisp: Replace trace_printk by pr_info
  media: camss: vfe: Use trace_printk for debugging only
  kernel/trace: Add TRACING_ALLOW_PRINTK config option

 drivers/gpu/drm/i915/Kconfig.debug              |  4 ++--
 .../media/platform/qcom/camss/camss-vfe-4-1.c   |  2 ++
 .../media/platform/qcom/camss/camss-vfe-4-7.c   |  2 ++
 drivers/staging/media/atomisp/pci/hmm/hmm.c     | 10 +++++-----
 drivers/usb/cdns3/gadget.c                      |  2 +-
 fs/f2fs/Kconfig                                 |  1 +
 include/linux/kernel.h                          | 17 ++++++++++++++++-
 kernel/trace/Kconfig                            | 10 ++++++++++
 samples/Kconfig                                 |  2 ++
 9 files changed, 41 insertions(+), 9 deletions(-)