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From: Jim Cromie via B4 Relay <devnull+jim.cromie.gmail.com@kernel.org>
To: Jason Baron <jbaron@akamai.com>, Shuah Khan <shuah@kernel.org>,
	 Andrew Morton <akpm@linux-foundation.org>,
	 Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	 Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	 David Airlie <airlied@gmail.com>,
	Simona Vetter <simona@ffwll.ch>,  Arnd Bergmann <arnd@arndb.de>,
	Luis Chamberlain <mcgrof@kernel.org>,
	 Petr Pavlu <petr.pavlu@suse.com>,
	Daniel Gomez <da.gomez@kernel.org>,
	 Sami Tolvanen <samitolvanen@google.com>,
	Aaron Tomlin <atomlin@atomlin.com>,
	 Jonathan Corbet <corbet@net.net>,
	 Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	 Nathan Chancellor <nathan@kernel.org>,
	Nicolas Schier <nsc@kernel.org>,
	 Shuah Khan <skhan@linuxfoundation.org>,
	 Randy Dunlap <rdunlap@infradead.org>,
	 "Rafael J. Wysocki" <rafael@kernel.org>,
	Pavel Machek <pavel@kernel.org>,  Len Brown <lenb@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org,
	 dri-devel@lists.freedesktop.org, linux-arch@vger.kernel.org,
	 linux-modules@vger.kernel.org, linux-doc@vger.kernel.org,
	 linux-kbuild@vger.kernel.org, linux-pm@vger.kernel.org,
	 Jim Cromie <jim.cromie@gmail.com>
Subject: [PATCH v10 08/38] dyndbg: add stub macro for DECLARE_DYNDBG_CLASSMAP
Date: Wed, 16 Sep 2026 09:33:00 -0600	[thread overview]
Message-ID: <20260916-dd-cmap-part2-clean-v10-8-af4cf4767707@gmail.com> (raw)
In-Reply-To: <20260916-dd-cmap-part2-clean-v10-0-af4cf4767707@gmail.com>

From: Jim Cromie <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__)

-- 
2.55.0



  parent reply	other threads:[~2026-09-16 15:33 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-16 15:32 [PATCH v10 00/38] dyndbg: Fix classmaps API for subsystems, query extensions, selftests Jim Cromie via B4 Relay
2026-09-16 15:32 ` [PATCH v10 01/38] selftests/dyndbg: Add kselftest script to verify dynamic-debug Jim Cromie via B4 Relay
2026-09-16 15:32 ` [PATCH v10 02/38] vmlinux.lds.h: refactor BOUNDED_SECTION_* macros into bounded_sections.lds.h Jim Cromie via B4 Relay
2026-09-16 15:32 ` [PATCH v10 03/38] vmlinux.lds.h: drop unused HEADERED_SECTION* macros Jim Cromie via B4 Relay
2026-09-16 15:32 ` [PATCH v10 04/38] vmlinux.lds.h: Fix ALIGN(8) omission causing NULL ptr on i386 Jim Cromie via B4 Relay
2026-09-16 15:32 ` [PATCH v10 05/38] vmlinux.lds.h: remove redundant ALIGN(8) directives Jim Cromie via B4 Relay
2026-09-16 15:32 ` [PATCH v10 06/38] dyndbg.lds.S: fix lost dyndbg sections in modules Jim Cromie via B4 Relay
2026-09-16 15:32 ` [PATCH v10 07/38] dyndbg: factor ddebug_match_desc out from ddebug_change Jim Cromie via B4 Relay
2026-09-16 15:33 ` Jim Cromie via B4 Relay [this message]
2026-09-16 15:33 ` [PATCH v10 09/38] dyndbg: reword "class unknown," to "class:_UNKNOWN_" Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 10/38] dyndbg-API: remove DD_CLASS_TYPE_(DISJOINT|LEVEL)_NAMES and code Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 11/38] dyndbg: drop NUM_TYPE_ARGS Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 12/38] dyndbg: bump num-tokens in a query-cmd from 9 to 15 Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 13/38] dyndbg: reduce verbose/debug clutter Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 14/38] dyndbg: Bind callsites and classmaps to DDEBUG_MODNAME Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 15/38] dyndbg: refactor param_set_dyndbg_classes and below Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 16/38] dyndbg: tighten fn-sig of ddebug_apply_class_bitmap Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 17/38] dyndbg: replace classmap list with an array-slice Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 18/38] dyndbg: macrofy a 2-index for-loop pattern Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 19/38] dyndbg: reduce class param storage to u32 Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 20/38] dyndbg,module: make proper substructs in _ddebug_info Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 21/38] dyndbg: move mod_name down from struct ddebug_table to _ddebug_info Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 22/38] dyndbg: hoist classmap-filter-by-modname up to ddebug_add_module Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 23/38] dyndbg-API: replace DECLARE_DYNDBG_CLASSMAP Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 24/38] selftests/dyndbg: Enable FT_classmap_inheritance Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 25/38] dyndbg: detect class_id reservation conflicts Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 26/38] dyndbg: check DYNAMIC_DEBUG_CLASSMAP_{DEFINE,USE_} args at compile-time Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 27/38] dyndbg-test: add do_bulk testpoint, rename do_prints to do_classes Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 28/38] dyndbg-API: promote DYNAMIC_DEBUG_CLASSMAP_PARAM to API Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 29/38] dyndbg: control-parser: treat comma as a token separator Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 30/38] selftests: enable comma-terminator tests Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 31/38] dyndbg: split multi-query strings with @ Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 32/38] dyndbg: resolve "protection" of class'd pr_debug Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 33/38] dyndbg: harden classmap and descriptor validation Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 34/38] docs/dyndbg: add classmap info to howto Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 35/38] dyndbg: Ignore additional arguments from pr_fmt Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 36/38] dyndbg: add epilogue to dynamic_debug/control file Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 37/38] dyndbg: add +c flag to count advantage of classmaps for DRM Jim Cromie via B4 Relay
2026-09-16 15:33 ` [PATCH v10 38/38] dyndbg: add DEBUG-biased fallback stubs for _dynamic_func_call_cls Jim Cromie via B4 Relay

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