Selftests for the dma-buf interfaces

modulename: dmabuf_selftests.ko

configname: CONFIG_DMABUF_SELFTESTS

Linux Kernel Configuration
└─>Device Drivers
└─>DMABUF options
└─>Selftests for the dma-buf interfaces
In linux kernel since version 5.1 (release Date: 2019-05-05)  
source code:
drivers/dma-buf/

is depended by
CONFIG_DRM_I915_DEBUG