default or selected kernelversion does not have config value CONFIG_DRM_CLIENT.
Result is shown for kernelversion 6.6.75
CONFIG_DRM_CLIENT (not configurable)
configname: CONFIG_DRM_CLIENT
Linux Kernel Configuration
└─>Device Drivers
└─>Graphics support
└─>Direct Rendering Manager (XFree86 4.1.0 and higher DRI support)
└─>DRM_CLIENT
In linux kernel since version 5.4.290 (release Date: 2025-02-01)
Enables support for DRM clients. DRM drivers that need
struct drm_client_dev and its interfaces should select this
option. Drivers that support the default clients should
select DRM_CLIENT_SELECTION instead.
struct drm_client_dev and its interfaces should select this
option. Drivers that support the default clients should
select DRM_CLIENT_SELECTION instead.