[PATCH v2 12/20] dyndbg-API: DYNDBG_CLASSMAP_USE drop extra args

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Drop macro args after _var.  Since DYNDBG_CLASSMAP_USE no longer
forwards to DYNDBG_CLASSMAP_DEFINE, it doesn't need those args to
forward.  Keep only the _var arg, which is the extern'd struct
classmap with all the class info.

Signed-off-by: Jim Cromie <jim.cromie@xxxxxxxxx>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 12 +---------
 drivers/gpu/drm/display/drm_dp_helper.c | 12 +---------
 drivers/gpu/drm/drm_crtc_helper.c       | 12 +---------
 drivers/gpu/drm/i915/i915_params.c      | 12 +---------
 drivers/gpu/drm/nouveau/nouveau_drm.c   | 12 +---------
 include/linux/dynamic_debug.h           | 30 ++++++++++++++-----------
 6 files changed, 22 insertions(+), 68 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 0075184b5d93..7bcc22ef5d49 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -189,17 +189,7 @@ int amdgpu_vcnfw_log;
 static void amdgpu_drv_delayed_reset_work_handler(struct work_struct *work);
 
 #if defined(CONFIG_DRM_USE_DYNAMIC_DEBUG)
-DYNDBG_CLASSMAP_USE(drm_debug_classes, DD_CLASS_TYPE_DISJOINT_BITS, 0,
-			"DRM_UT_CORE",
-			"DRM_UT_DRIVER",
-			"DRM_UT_KMS",
-			"DRM_UT_PRIME",
-			"DRM_UT_ATOMIC",
-			"DRM_UT_VBL",
-			"DRM_UT_STATE",
-			"DRM_UT_LEASE",
-			"DRM_UT_DP",
-			"DRM_UT_DRMRES");
+DYNDBG_CLASSMAP_USE(drm_debug_classes);
 #endif
 
 struct amdgpu_mgpu_info mgpu_info = {
diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c
index 8fa7a88299e7..3bc188cb1116 100644
--- a/drivers/gpu/drm/display/drm_dp_helper.c
+++ b/drivers/gpu/drm/display/drm_dp_helper.c
@@ -42,17 +42,7 @@
 #include "drm_dp_helper_internal.h"
 
 #if defined(CONFIG_DRM_USE_DYNAMIC_DEBUG)
-DYNDBG_CLASSMAP_USE(drm_debug_classes, DD_CLASS_TYPE_DISJOINT_BITS, 0,
-			"DRM_UT_CORE",
-			"DRM_UT_DRIVER",
-			"DRM_UT_KMS",
-			"DRM_UT_PRIME",
-			"DRM_UT_ATOMIC",
-			"DRM_UT_VBL",
-			"DRM_UT_STATE",
-			"DRM_UT_LEASE",
-			"DRM_UT_DP",
-			"DRM_UT_DRMRES");
+DYNDBG_CLASSMAP_USE(drm_debug_classes);
 #endif
 
 struct dp_aux_backlight {
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index 2f747c9c8f60..5fb83336b015 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -52,17 +52,7 @@
 #include "drm_crtc_helper_internal.h"
 
 #if defined(CONFIG_DRM_USE_DYNAMIC_DEBUG)
-DYNDBG_CLASSMAP_USE(drm_debug_classes, DD_CLASS_TYPE_DISJOINT_BITS, 0,
-			"DRM_UT_CORE",
-			"DRM_UT_DRIVER",
-			"DRM_UT_KMS",
-			"DRM_UT_PRIME",
-			"DRM_UT_ATOMIC",
-			"DRM_UT_VBL",
-			"DRM_UT_STATE",
-			"DRM_UT_LEASE",
-			"DRM_UT_DP",
-			"DRM_UT_DRMRES");
+DYNDBG_CLASSMAP_USE(drm_debug_classes);
 #endif
 
 /**
diff --git a/drivers/gpu/drm/i915/i915_params.c b/drivers/gpu/drm/i915/i915_params.c
index b5b2542ae364..e959d0384ead 100644
--- a/drivers/gpu/drm/i915/i915_params.c
+++ b/drivers/gpu/drm/i915/i915_params.c
@@ -30,17 +30,7 @@
 #include "i915_drv.h"
 
 #if defined(CONFIG_DRM_USE_DYNAMIC_DEBUG)
-DYNDBG_CLASSMAP_USE(drm_debug_classes, DD_CLASS_TYPE_DISJOINT_BITS, 0,
-			"DRM_UT_CORE",
-			"DRM_UT_DRIVER",
-			"DRM_UT_KMS",
-			"DRM_UT_PRIME",
-			"DRM_UT_ATOMIC",
-			"DRM_UT_VBL",
-			"DRM_UT_STATE",
-			"DRM_UT_LEASE",
-			"DRM_UT_DP",
-			"DRM_UT_DRMRES");
+DYNDBG_CLASSMAP_USE(drm_debug_classes);
 #endif
 
 #define i915_param_named(name, T, perm, desc) \
diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
index 2963cf5b0807..609edeb2a117 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
@@ -72,17 +72,7 @@
 #include "nouveau_dmem.h"
 
 #if defined(CONFIG_DRM_USE_DYNAMIC_DEBUG)
-DYNDBG_CLASSMAP_USE(drm_debug_classes, DD_CLASS_TYPE_DISJOINT_BITS, 0,
-			"DRM_UT_CORE",
-			"DRM_UT_DRIVER",
-			"DRM_UT_KMS",
-			"DRM_UT_PRIME",
-			"DRM_UT_ATOMIC",
-			"DRM_UT_VBL",
-			"DRM_UT_STATE",
-			"DRM_UT_LEASE",
-			"DRM_UT_DP",
-			"DRM_UT_DRMRES");
+DYNDBG_CLASSMAP_USE(drm_debug_classes);
 #endif
 
 MODULE_PARM_DESC(config, "option string to pass to driver core");
diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 397ac8294230..91015d1a04e0 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -90,13 +90,15 @@ struct ddebug_class_map {
 };
 
 /**
- * DYNDBG_CLASSMAP_DEFINE - define the class_map that names the
- * debug classes used in this module.  This tells dyndbg the authorized
- * classnames it should manipulate.
- * @_var:   a struct ddebug_class_map, passed to module_param_cb
+ * DYNDBG_CLASSMAP_DEFINE - define debug-classes used by a module.
+ * @_var:   name of the classmap, exported for other modules coordinated use.
  * @_type:  enum class_map_type, chooses bits/verbose, numeric/symbolic
  * @_base:  offset of 1st class-name. splits .class_id space
- * @classes: class-names used to control class'd prdbgs
+ * @classes: enum-map - symbol names are "classnames", vals are .class_ids
+ *
+ * @classes vals are _ddebug.class_ids used in the module, the symbol
+ * names are stringified; they authorize "class FOO" to >control.
+ * Connection to a kernel-param is done separately.
  */
 #define DYNDBG_CLASSMAP_DEFINE(_var, _maptype, _base, ...)		\
 	const char *_var##_classnames[] = { __VA_ARGS__ };		\
@@ -116,16 +118,18 @@ struct ddebug_class_user {
 	struct ddebug_class_map *map;
 };
 /**
- * DYNDBG_CLASSMAP_USE - Use a classmap DEFINEd in another module.
- * This lets dyndbg initialize the dependent module's prdbgs from the
- * other module's controlling sysfs node.
+ * DYNDBG_CLASSMAP_USE - refer to a classmap, DEFINEd elsewhere.
+ * @_var: name of the exported classmap
+ *
+ * This registers the module's use of another module's classmap defn,
+ * allowing dyndbg to find the controlling kparam, and propagate its
+ * settings to the dependent module being loaded.
  */
-#define DYNDBG_CLASSMAP_USE(_var, ...)					\
-	DYNDBG_CLASSMAP_USE_(_var, __UNIQUE_ID(ddebug_class_user),	\
-			     __VA_ARGS__)
-#define DYNDBG_CLASSMAP_USE_(_var, _uname, ...)				\
+#define DYNDBG_CLASSMAP_USE(_var)					\
+	DYNDBG_CLASSMAP_USE_(_var, __UNIQUE_ID(ddebug_class_user))
+#define DYNDBG_CLASSMAP_USE_(_var, _uname)				\
 	extern struct ddebug_class_map _var;				\
-	static struct ddebug_class_user __used				\
+	struct ddebug_class_user __used					\
 	__section("__dyndbg_class_refs") _uname = {			\
 		.user_mod_name = KBUILD_MODNAME,			\
 		.map = &_var,						\
-- 
2.39.0




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