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[98.38.17.99]) by smtp.googlemail.com with ESMTPSA id 586e51a60fabf-491ee1ac486sm559401fac.16.2026.09.23.15.34.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Sep 2026 15:34:55 -0700 (PDT) From: Jim Cromie Date: Wed, 23 Sep 2026 16:34:32 -0600 Subject: [PATCH v11 08/38] dyndbg: add stub macro for DECLARE_DYNDBG_CLASSMAP Precedence: bulk X-Mailing-List: linux-kbuild@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260923-dd-cmap-part2-clean-v11-8-9b6c217fdf2f@gmail.com> References: <20260923-dd-cmap-part2-clean-v11-0-9b6c217fdf2f@gmail.com> In-Reply-To: <20260923-dd-cmap-part2-clean-v11-0-9b6c217fdf2f@gmail.com> To: Jason Baron , Shuah Khan , Andrew Morton , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Arnd Bergmann , Luis Chamberlain , Petr Pavlu , Daniel Gomez , Sami Tolvanen , Aaron Tomlin , Jonathan Corbet , Greg Kroah-Hartman , Nathan Chancellor , Nicolas Schier , Shuah Khan , Randy Dunlap , "Rafael J. Wysocki" , Pavel Machek , Len Brown , Jonathan Corbet , Petr Mladek , Steven Rostedt , John Ogness , Sergey Senozhatsky 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 X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1790202874; l=3163; i=jim.cromie@gmail.com; s=20260203; h=from:subject:message-id; bh=ZuzqA3zGt/j9kYmFGfFlaL94NbjSKGlzcBcWBUqAWbM=; b=cFiUQCHIl8Z4t48oIQu3yHhG2L5LBXo/MO7Iuhjmrd9SbV9RgD25fkw2PoMOxn1mE+8jp8rxK 3fgXCxDoibsBwlH58Y6vngo+1u7JVHUnrHhDnEm91pon7izPcbgrnXy X-Developer-Key: i=jim.cromie@gmail.com; a=ed25519; pk=C6E5ODlPQo7ZBynATXH9wg7K6HxP0pIXyf4s38Qw0XE= 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 --- 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