default or selected kernelversion does not have config value CONFIG_CMA_DEBUG.
Result is shown for kernelversion 6.9.9
CMA debug messages (DEVELOPMENT)
configname: CONFIG_CMA_DEBUG
Linux Kernel Configuration
└─>Memory Management options
└─>CMA debug messages (DEVELOPMENT)
In linux kernel since version 3.1 (release Date: 2011-10-24)
Turns on debug messages in CMA. This produces KERN_DEBUG
messages for every CMA call as well as various messages while
processing calls such as dma_alloc_from_contiguous().
This option does not affect warning and error messages.
messages for every CMA call as well as various messages while
processing calls such as dma_alloc_from_contiguous().
This option does not affect warning and error messages.