CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_TWO is not available for thedefaultarchitecture x86.
Result is shown for architecture blackfin
default or selected kernelversion does not have config value CONFIG_DEBUG_BFIN_HWTRACE_COMPRESSION_TWO.
Result is shown for kernelversion 6.7-rc3

Compress two-level loops


Omit loop Tracing
└─>Compress two-level loops
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
The trace buffer does not record loops two levels deep. Helpful if
the trace is spinning in a nested loop