param(int, fastboot, -1, 0600) \
        param(int, enable_dpcd_backlight, -1, 0600) \
        param(char *, force_probe, CONFIG_DRM_I915_FORCE_PROBE, 0400) \
-       param(unsigned long, fake_lmem_start, 0, 0400) \
-       param(unsigned int, request_timeout_ms, CONFIG_DRM_I915_REQUEST_TIMEOUT, 0600) \
+       param(unsigned long, fake_lmem_start, 0, IS_ENABLED(CONFIG_DRM_I915_UNSTABLE_FAKE_LMEM) ? 0400 : 0) \
+       param(unsigned int, request_timeout_ms, CONFIG_DRM_I915_REQUEST_TIMEOUT, CONFIG_DRM_I915_REQUEST_TIMEOUT ? 0600 : 0) \
        /* leave bools at the end to not create holes */ \
        param(bool, enable_hangcheck, true, 0600) \
        param(bool, load_detect_test, false, 0600) \
        param(bool, force_reset_modeset_test, false, 0600) \
-       param(bool, error_capture, true, 0600) \
+       param(bool, error_capture, true, IS_ENABLED(CONFIG_DRM_I915_CAPTURE_ERROR) ? 0600 : 0) \
        param(bool, disable_display, false, 0400) \
        param(bool, verbose_state_checks, true, 0) \
        param(bool, nuclear_pageflip, false, 0400) \
        param(bool, enable_dp_mst, true, 0600) \
-       param(bool, enable_gvt, false, 0400)
+       param(bool, enable_gvt, false, IS_ENABLED(CONFIG_DRM_I915_GVT) ? 0400 : 0)
 
 #define MEMBER(T, member, ...) T member;
 struct i915_params {