[PATCH v2 37/59] drm-dyndbg: adapt DRM to invoke DYNAMIC_DEBUG_CLASSMAP_PARAM

[Jim Cromie]

Invoke DYNAMIC_DEBUG_CLASSMAP_PARAM to hook drm.debug (__drm_debug) to the
DRM_UT_* classmap, replacing the ad-hoc wiring previously doing it.

Add DRM_CLASSMAP_* adapter macros to selectively use
DYNAMIC_DEBUG_CLASSMAP_* when DRM_USE_DYNAMIC_DEBUG=y is configured.

Signed-off-by: Jim Cromie <jim.cromie at gmail.com>
---
 drivers/gpu/drm/drm_print.c | 8 ++------
 include/drm/drm_print.h     | 4 ++++
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/drm_print.c b/drivers/gpu/drm/drm_print.c
index a3b70d104afa..46d53fe30204 100644
--- a/drivers/gpu/drm/drm_print.c
+++ b/drivers/gpu/drm/drm_print.c
@@ -69,12 +69,8 @@ DRM_CLASSMAP_DEFINE(drm_debug_classes, DD_CLASS_TYPE_DISJOINT_BITS,
 		    "DRM_UT_DP",
 		    "DRM_UT_DRMRES");
 
-static struct ddebug_class_param drm_debug_bitmap = {
-	.bits = &__drm_debug,
-	.flags = "p",
-	.map = &drm_debug_classes,
-};
-module_param_cb(debug, &param_ops_dyndbg_classes, &drm_debug_bitmap, 0600);
+DRM_CLASSMAP_PARAM_REF(debug, __drm_debug, drm_debug_classes, p);
+
 #endif
 
 void __drm_puts_coredump(struct drm_printer *p, const char *str)
diff --git a/include/drm/drm_print.h b/include/drm/drm_print.h
index e86ebb716b4c..8758449491b8 100644
--- a/include/drm/drm_print.h
+++ b/include/drm/drm_print.h
@@ -144,9 +144,13 @@ enum drm_debug_category {
 #ifdef CONFIG_DRM_USE_DYNAMIC_DEBUG
 #define DRM_CLASSMAP_DEFINE(...)    DYNAMIC_DEBUG_CLASSMAP_DEFINE(__VA_ARGS__)
 #define DRM_CLASSMAP_USE(name)      DYNAMIC_DEBUG_CLASSMAP_USE(name)
+#define DRM_CLASSMAP_PARAM_REF(...) DYNAMIC_DEBUG_CLASSMAP_PARAM_REF(__VA_ARGS__)
+#define DRM_CLASSMAP_PARAM(...)     DYNAMIC_DEBUG_CLASSMAP_PARAM(__VA_ARGS__)
 #else
 #define DRM_CLASSMAP_DEFINE(...)
 #define DRM_CLASSMAP_USE(name)
+#define DRM_CLASSMAP_PARAM_REF(...)
+#define DRM_CLASSMAP_PARAM(...)
 #endif
 
 static inline bool drm_debug_enabled_raw(enum drm_debug_category category)
-- 
2.49.0