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From: Jim Cromie <jim.cromie@gmail.com>
To: gregkh@linuxfoundation.org
Cc: "Jim Cromie" <jim.cromie@gmail.com>,
	"Jason Baron" <jbaron@akamai.com>,
	"Łukasz Bartosik" <ukaszb@chromium.org>,
	"Louis Chauvet" <louis.chauvet@bootlin.com>,
	"Bagas Sanjaya" <bagasdotme@gmail.com>,
	"Dave Airlie" <airlied@gmail.com>,
	"Daniel Vetter" <daniel@ffwll.ch>,
	"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
	"Maxime Ripard" <mripard@kernel.org>,
	"Thomas Zimmermann" <tzimmermann@suse.de>,
	dri-devel@lists.freedesktop.org, "Petr Mladek" <pmladek@suse.com>,
	"Shuah Khan" <skhan@linuxfoundation.org>,
	linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v9 03/32] dyndbg: add stub macro for DECLARE_DYNDBG_CLASSMAP
Date: Thu, 29 Jan 2026 00:28:49 -0700	[thread overview]
Message-ID: <20260129072932.2190803-4-jim.cromie@gmail.com> (raw)
In-Reply-To: <20260129072932.2190803-1-jim.cromie@gmail.com>

Add the stub macro for !DYNAMIC_DEBUG builds, after moving the
original macro-defn down under the big ifdef.  Do it now so future
changes have a cleaner starting point.

Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
---
 include/linux/dynamic_debug.h | 43 ++++++++++++++++++-----------------
 1 file changed, 22 insertions(+), 21 deletions(-)

diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index 05743900a116..a10adac8e8f0 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -93,27 +93,6 @@ struct ddebug_class_map {
 	enum class_map_type map_type;
 };
 
-/**
- * DECLARE_DYNDBG_CLASSMAP - declare classnames known by a module
- * @_var:   a struct ddebug_class_map, passed to module_param_cb
- * @_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
- */
-#define DECLARE_DYNDBG_CLASSMAP(_var, _maptype, _base, ...)		\
-	static const char *_var##_classnames[] = { __VA_ARGS__ };	\
-	static struct ddebug_class_map __aligned(8) __used		\
-		__section("__dyndbg_classes") _var = {			\
-		.mod = THIS_MODULE,					\
-		.mod_name = KBUILD_MODNAME,				\
-		.base = _base,						\
-		.map_type = _maptype,					\
-		.length = NUM_TYPE_ARGS(char*, __VA_ARGS__),		\
-		.class_names = _var##_classnames,			\
-	}
-#define NUM_TYPE_ARGS(eltype, ...)				\
-        (sizeof((eltype[]){__VA_ARGS__}) / sizeof(eltype))
-
 /* encapsulate linker provided built-in (or module) dyndbg data */
 struct _ddebug_info {
 	struct _ddebug *descs;
@@ -138,6 +117,27 @@ struct ddebug_class_param {
 #if defined(CONFIG_DYNAMIC_DEBUG) || \
 	(defined(CONFIG_DYNAMIC_DEBUG_CORE) && defined(DYNAMIC_DEBUG_MODULE))
 
+/**
+ * DECLARE_DYNDBG_CLASSMAP - declare classnames known by a module
+ * @_var:   a struct ddebug_class_map, passed to module_param_cb
+ * @_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
+ */
+#define DECLARE_DYNDBG_CLASSMAP(_var, _maptype, _base, ...)		\
+	static const char *_var##_classnames[] = { __VA_ARGS__ };	\
+	static struct ddebug_class_map __aligned(8) __used		\
+		__section("__dyndbg_classes") _var = {			\
+		.mod = THIS_MODULE,					\
+		.mod_name = KBUILD_MODNAME,				\
+		.base = _base,						\
+		.map_type = _maptype,					\
+		.length = NUM_TYPE_ARGS(char*, __VA_ARGS__),		\
+		.class_names = _var##_classnames,			\
+	}
+#define NUM_TYPE_ARGS(eltype, ...)				\
+	(sizeof((eltype[]) {__VA_ARGS__}) / sizeof(eltype))
+
 extern __printf(2, 3)
 void __dynamic_pr_debug(struct _ddebug *descriptor, const char *fmt, ...);
 
@@ -314,6 +314,7 @@ void __dynamic_ibdev_dbg(struct _ddebug *descriptor,
 
 #define DEFINE_DYNAMIC_DEBUG_METADATA(name, fmt)
 #define DYNAMIC_DEBUG_BRANCH(descriptor) false
+#define DECLARE_DYNDBG_CLASSMAP(...)
 
 #define dynamic_pr_debug(fmt, ...)					\
 	no_printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
-- 
2.52.0


  parent reply	other threads:[~2026-01-29  7:30 UTC|newest]

Thread overview: 32+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <20260129072932.2190803-1-jim.cromie@gmail.com>
2026-01-29  7:28 ` [PATCH v9 01/32] dyndbg: fix NULL ptr on i386 due to section alignment Jim Cromie
2026-01-29  7:28 ` [PATCH v9 02/32] dyndbg: factor ddebug_match_desc out from ddebug_change Jim Cromie
2026-01-29  7:28 ` Jim Cromie [this message]
2026-01-29  7:28 ` [PATCH v9 04/32] docs/dyndbg: update examples \012 to \n Jim Cromie
2026-01-29  7:28 ` [PATCH v9 05/32] docs/dyndbg: explain flags parse 1st Jim Cromie
2026-01-29  7:28 ` [PATCH v9 06/32] test-dyndbg: fixup CLASSMAP usage error Jim Cromie
2026-01-29  7:28 ` [PATCH v9 07/32] dyndbg: reword "class unknown," to "class:_UNKNOWN_" Jim Cromie
2026-01-29  7:28 ` [PATCH v9 08/32] dyndbg: make ddebug_class_param union members same size Jim Cromie
2026-01-29  7:28 ` [PATCH v9 09/32] dyndbg: drop NUM_TYPE_ARRAY Jim Cromie
2026-01-29  7:28 ` [PATCH v9 10/32] dyndbg: tweak pr_fmt to avoid expansion conflicts Jim Cromie
2026-01-29  7:28 ` [PATCH v9 11/32] dyndbg: reduce verbose/debug clutter Jim Cromie
2026-01-29  7:28 ` [PATCH v9 12/32] dyndbg: refactor param_set_dyndbg_classes and below Jim Cromie
2026-01-29  7:28 ` [PATCH v9 13/32] dyndbg: tighten fn-sig of ddebug_apply_class_bitmap Jim Cromie
2026-01-29  7:29 ` [PATCH v9 14/32] dyndbg: replace classmap list with a vector Jim Cromie
2026-01-29  7:29 ` [PATCH v9 15/32] dyndbg: macrofy a 2-index for-loop pattern Jim Cromie
2026-01-29  7:29 ` [PATCH v9 16/32] dyndbg,module: make proper substructs in _ddebug_info Jim Cromie
2026-01-29  7:29 ` [PATCH v9 17/32] dyndbg: hoist classmap-filter-by-modname up to ddebug_add_module Jim Cromie
2026-01-29  7:29 ` [PATCH v9 18/32] dyndbg: move mod_name down from struct ddebug_table to _ddebug_info Jim Cromie
2026-01-29  7:29 ` [PATCH v9 19/32] dyndbg-API: remove DD_CLASS_TYPE_(DISJOINT|LEVEL)_NAMES and code Jim Cromie
2026-01-29  7:29 ` [PATCH v9 20/32] selftests-dyndbg: add a dynamic_debug run_tests target Jim Cromie
2026-01-29  7:29 ` [PATCH v9 21/32] dyndbg: change __dynamic_func_call_cls* macros into expressions Jim Cromie
2026-01-29  7:29 ` [PATCH v9 22/32] dyndbg-API: replace DECLARE_DYNDBG_CLASSMAP Jim Cromie
2026-01-29  7:29 ` [PATCH v9 23/32] dyndbg: detect class_id reservation conflicts Jim Cromie
2026-01-29  7:29 ` [PATCH v9 24/32] dyndbg: check DYNAMIC_DEBUG_CLASSMAP_DEFINE args at compile-time Jim Cromie
2026-01-29  7:29 ` [PATCH v9 25/32] dyndbg-test: change do_prints testpoint to accept a loopct Jim Cromie
2026-01-29  7:29 ` [PATCH v9 26/32] dyndbg-API: promote DYNAMIC_DEBUG_CLASSMAP_PARAM to API Jim Cromie
2026-01-29  7:29 ` [PATCH v9 27/32] dyndbg: treat comma as a token separator Jim Cromie
2026-01-29  7:29 ` [PATCH v9 28/32] dyndbg: split multi-query strings with % Jim Cromie
2026-01-29  7:29 ` [PATCH v9 29/32] selftests-dyndbg: add test_mod_submod Jim Cromie
2026-01-29  7:29 ` [PATCH v9 30/32] dyndbg: resolve "protection" of class'd pr_debug Jim Cromie
2026-01-29  7:29 ` [PATCH v9 31/32] dyndbg: add DYNAMIC_DEBUG_CLASSMAP_USE_(dd_class_name, offset) Jim Cromie
2026-01-29  7:29 ` [PATCH v9 32/32] docs/dyndbg: add classmap info to howto Jim Cromie

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