[PATCH v2 13/27] dyndbg: add __pr_debug_cls(class, fmt, ...)

From: Jim Cromie
Date: Mon May 16 2022 - 18:58:16 EST


For selftest purposes, add __pr_debug_cls(class, fmt, ...)

I didn't think we'd need to define this, since DRM effectively has it
already. But test_dynamic_debug needs it in order to demonstrate all
the moving parts.

Note the __ prefix; its not intended for general use, and doesn't
include any builtin-constant checks that could pertain. I'd prefer to
see a use-case where copying the drm.debug model isn't better.

Signed-off-by: Jim Cromie <jim.cromie@xxxxxxxxx>
---
include/linux/dynamic_debug.h | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h
index e9e6d0f503f3..abf43e28d8d3 100644
--- a/include/linux/dynamic_debug.h
+++ b/include/linux/dynamic_debug.h
@@ -216,6 +216,10 @@ void __dynamic_ibdev_dbg(struct _ddebug *descriptor,
_DPRINTK_CLASS_DFLT, \
fmt, func, ##__VA_ARGS__)

+#define dynamic_pr_debug_cls(cls, fmt, ...) \
+ _dynamic_func_call_cls(cls, fmt, __dynamic_pr_debug, \
+ pr_fmt(fmt), ##__VA_ARGS__)
+
#define dynamic_pr_debug(fmt, ...) \
_dynamic_func_call(fmt, __dynamic_pr_debug, \
pr_fmt(fmt), ##__VA_ARGS__)
@@ -246,6 +250,9 @@ struct kernel_param;
int param_set_dyndbg_classes(const char *instr, const struct kernel_param *kp);
int param_get_dyndbg_classes(char *buffer, const struct kernel_param *kp);

+#define __pr_debug_cls(cls, fmt, ...) \
+ dynamic_pr_debug_cls(cls, fmt, ##__VA_ARGS__)
+
#else /* !CONFIG_DYNAMIC_DEBUG_CORE */

#include <linux/string.h>
--
2.35.3