kunit: Make filter parameters configurable via Kconfig

Enable the preset of filter parameters from kconfig options, similar to
how other KUnit configuration parameters are handled already.
This is useful to run a subset of tests even if the cmdline is not
readily modifyable.

Link: https://lore.kernel.org/r/20251106-kunit-filter-kconfig-v1-1-d723fb7ac221@linutronix.de
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Reviewed-by: David Gow <davidgow@google.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>

diff --git a/lib/kunit/Kconfig b/lib/kunit/Kconfig
index 7a6af361d2fc6276b9667be8c694b0c80e33c1e8..50ecf55d2b9c8a82f2aff7a0b4156bd6179b0a2f 100644 (file)
--- a/lib/kunit/Kconfig
+++ b/lib/kunit/Kconfig
@@ -93,6 +93,30 @@ config KUNIT_AUTORUN_ENABLED
          In most cases this should be left as Y. Only if additional opt-in
          behavior is needed should this be set to N.
 
+config KUNIT_DEFAULT_FILTER_GLOB
+       string "Default value of the filter_glob module parameter"
+       help
+         Sets the default value of kunit.filter_glob. If set to a non-empty
+         string only matching tests are executed.
+
+         If unsure, leave empty so all tests are executed.
+
+config KUNIT_DEFAULT_FILTER
+       string "Default value of the filter module parameter"
+       help
+         Sets the default value of kunit.filter. If set to a non-empty
+         string only matching tests are executed.
+
+         If unsure, leave empty so all tests are executed.
+
+config KUNIT_DEFAULT_FILTER_ACTION
+       string "Default value of the filter_action module parameter"
+       help
+         Sets the default value of kunit.filter_action. If set to a non-empty
+         string only matching tests are executed.
+
+         If unsure, leave empty so all tests are executed.
+
 config KUNIT_DEFAULT_TIMEOUT
        int "Default value of the timeout module parameter"
        default 300

diff --git a/lib/kunit/executor.c b/lib/kunit/executor.c
index 0061d4c7e35170634a3c1d1cff7179037fb8ba07..02ff380ab7938cfac2be3f8c0e7630a78961cc3d 100644 (file)
--- a/lib/kunit/executor.c
+++ b/lib/kunit/executor.c
@@ -45,9 +45,11 @@ bool kunit_autorun(void)
        return autorun_param;
 }
 
-static char *filter_glob_param;
-static char *filter_param;
-static char *filter_action_param;
+#define PARAM_FROM_CONFIG(config) (config[0] ? config : NULL)
+
+static char *filter_glob_param = PARAM_FROM_CONFIG(CONFIG_KUNIT_DEFAULT_FILTER_GLOB);
+static char *filter_param = PARAM_FROM_CONFIG(CONFIG_KUNIT_DEFAULT_FILTER);
+static char *filter_action_param = PARAM_FROM_CONFIG(CONFIG_KUNIT_DEFAULT_FILTER_ACTION);
 
 module_param_named(filter_glob, filter_glob_param, charp, 0600);
 MODULE_PARM_DESC(filter_glob,