[PATCH v2 0/8] staging: vc04: Drop custom logging based on printk

[Umang Jain]

Hello,

This series address the discussion on [1], i.e. removing the printk
based logging mechanism and migrate it use dynamic debug.

Patch 1/8 and 2/8 are prep-up patch to pass struct device pointers
so that we can use dev_dbg() in those functions. 

Patch 3/8 targets migration of vchiq_log_error() to use dynamic debug
Patch 4/8 targets migration of vchiq_log_warning() to use dynamic debug
Patch 5/8 targets rename of vchiq_log_info() to vchiq_log_debug() and
migration to use dynamic debug.
Patch 6/8 targets mirgration of vchiq_log_trace to use dynamic debug.

Patch 7/8 drops a unused macro.
Patch 8/8 is log levels remnants cleanup along with debugfs entries.

Changes in v2:
- Address feedback from v1, added 1/8, 2/8 as new patches
  Hence, Remove pr_*() based logging in few cases
- Cleanup debugfs log entries (8/8) and update TODO list
- Fixed bugs where NULL deference was happening due to unitialised
  pointers.

Testing:
Booted RPi 3-b with:
`dyndbg="file *vchiq_arm* +p" dyndbg="file *vchiq_core* +p"`
on cmdline.txt (kernel args)

And run drivers/staging/vc04_services/interface/TESTING and verify
dynamic debug logs with `dmesg -WH`.

[1] https://lore.kernel.org/linux-media/20230913185528.770634-1-umang.jain@ideasonboard.com/

Umang Jain (8):
  staging: vc04_services: Pass struct device to vchiq_log_dump_mem()
  staging: vc04_services: Pass struct device to vchiq_init_slots()
  staging: vc04: Convert vchiq_log_error() to use dynamic debug
  staging: vc04: Convert vchiq_log_warning() to use dynamic debug
  staging: vc04: Convert(and rename) vchiq_log_info() to use dynamic
    debug
  staging: vc04: Convert vchiq_log_trace() to use dynamic debug
  staging: vc04_services: Drop VCHIQ_LOG_PREFIX macro
  staging: vc04_services: Drop log level mechanisms

 drivers/staging/vc04_services/interface/TODO  |   5 -
 .../interface/vchiq_arm/vchiq_arm.c           | 149 ++++---
 .../interface/vchiq_arm/vchiq_arm.h           |   3 -
 .../interface/vchiq_arm/vchiq_connected.c     |   2 +-
 .../interface/vchiq_arm/vchiq_core.c          | 403 ++++++++----------
 .../interface/vchiq_arm/vchiq_core.h          |  61 +--
 .../interface/vchiq_arm/vchiq_debugfs.c       | 103 -----
 .../interface/vchiq_arm/vchiq_dev.c           |  59 +--
 8 files changed, 327 insertions(+), 458 deletions(-)

-- 
2.41.0