diff options
| author | Park Ju Hyung <qkrwngud825@gmail.com> | 2016-12-31 05:07:17 +0900 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2019-12-23 23:43:33 +0200 |
| commit | c41564b077479f129fbd3ea8abff8adfb7604b50 (patch) | |
| tree | df476bdf0c6d7adc26a718b5ea8c881f38f72fd5 /kernel/trace | |
| parent | 425799635358454521ca64d6366b2ccea29bdda0 (diff) | |
trace: add CONFIG_DISABLE_TRACE_PRINTK option
Poorly made kernel trees often use trace_printk() without
properly guarding them in a #ifdef macro.
Such usage of trace_printk() causes a warning at
boot and additional memory allocation.
This option serves to disable those all at once with ease.
Change-Id: I2cb2085f48064bda8c18806597c5aee57237dca6
Signed-off-by: Park Ju Hyung <qkrwngud825@gmail.com>
Signed-off-by: Alex Naidis <alex.naidis@linux.com>
Diffstat (limited to 'kernel/trace')
| -rw-r--r-- | kernel/trace/Kconfig | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index 3c7b7a9bcad1..d8b00f94c63d 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -136,6 +136,20 @@ config GENERIC_TRACER bool select TRACING +if TRACING + +config DISABLE_TRACE_PRINTK + bool "Force disable trace_printk() usage" + default y + help + When trace_printk() is used in any of the kernel source, it enables + debugging functions which are not desired for production kernel. + Enabling this option will replace trace_printk() with pr_debug(). + + If in doubt, say Y. + +endif + # # Minimum requirements an architecture has to meet for us to # be able to offer generic tracing facilities: |