From 3fc95d80a536e49e38ba4f79ca60cb4e64f99b3b Mon Sep 17 00:00:00 2001 From: Jim Cromie Date: Sun, 4 Sep 2022 15:40:50 -0600 Subject: dyndbg: add __pr_debug_cls for testing 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 in drm_dbg, drm_devdbg. But test_dynamic_debug needs it in order to demonstrate all the moving parts. Note the __ prefix; its not intended for general use, at least until a need emerges. ISTM the drm.debug model (macro wrappers inserting enum const 1st arg) is the baseline approach. That said, nouveau might want it for easy use in its debug macros. TBD. NB: it does require a builtin-constant class, __pr_debug_cls(i++, ...) is disallowed by compiler. Signed-off-by: Jim Cromie Link: https://lore.kernel.org/r/20220904214134.408619-14-jim.cromie@gmail.com Signed-off-by: Greg Kroah-Hartman --- include/linux/dynamic_debug.h | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'include/linux/dynamic_debug.h') diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h index 633f4e463766..3c9690da44d9 100644 --- a/include/linux/dynamic_debug.h +++ b/include/linux/dynamic_debug.h @@ -221,6 +221,13 @@ void __dynamic_ibdev_dbg(struct _ddebug *descriptor, KERN_DEBUG, prefix_str, prefix_type, \ rowsize, groupsize, buf, len, ascii) +/* for test only, generally expect drm.debug style macro wrappers */ +#define __pr_debug_cls(cls, fmt, ...) do { \ + BUILD_BUG_ON_MSG(!__builtin_constant_p(cls), \ + "expecting constant class int/enum"); \ + dynamic_pr_debug_cls(cls, fmt, ##__VA_ARGS__); \ + } while (0) + #else /* !CONFIG_DYNAMIC_DEBUG_CORE */ #include -- cgit v1.2.3-59-g8ed1b