linux-kernel - Re: [PATCH V2 02/11] cxl/mem: Implement Get Event Records command

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Date:   Fri, 2 Dec 2022 00:00:59 -0500
From:   Steven Rostedt <rostedt@...dmis.org>
To:     Ira Weiny <ira.weiny@...el.com>
Cc:     Dan Williams <dan.j.williams@...el.com>,
        Alison Schofield <alison.schofield@...el.com>,
        Vishal Verma <vishal.l.verma@...el.com>,
        "Ben Widawsky" <bwidawsk@...nel.org>,
        Jonathan Cameron <Jonathan.Cameron@...wei.com>,
        Davidlohr Bueso <dave@...olabs.net>,
        "Dave Jiang" <dave.jiang@...el.com>,
        <linux-kernel@...r.kernel.org>, <linux-cxl@...r.kernel.org>
Subject: Re: [PATCH V2 02/11] cxl/mem: Implement Get Event Records command

On Thu, 1 Dec 2022 23:40:52 -0500
Steven Rostedt <rostedt@...dmis.org> wrote:

> +#undef __print_symbolic
> +#define __print_symbolic(value, symbol_array...)			\
> +	({								\
> +		static const struct trace_print_flags symbols[] =	\
> +			{ symbol_array, { -1, NULL }};			\
> +		__print_symbolic_str(value, symbols);			\
> +	})
> +
>  #endif /* CREATE_TRACE_POINTS */

Bah, I want this outside that #ifdef

> diff --git a/include/trace/stages/stage7_class_define.h b/include/trace/stages/stage7_class_define.h
> index 8a7ec24c246d..6fe83397f65d 100644
> --- a/include/trace/stages/stage7_class_define.h
> +++ b/include/trace/stages/stage7_class_define.h
> @@ -6,7 +6,6 @@

I also don't think I need to touch stage7.

New patch:

diff --git a/include/trace/define_trace.h b/include/trace/define_trace.h
index 00723935dcc7..9d665f634614 100644
--- a/include/trace/define_trace.h
+++ b/include/trace/define_trace.h
@@ -133,3 +133,24 @@
 #define CREATE_TRACE_POINTS
 
 #endif /* CREATE_TRACE_POINTS */
+
+#ifndef __DEFINE_PRINT_SYMBOLIC_STR
+#define __DEFINE_PRINT_SYMBOLIC_STR
+static inline const char *
+__print_symbolic_str(int type, struct trace_print_flags *symbols)
+{
+	for (; symbols->name != NULL; symbols++) {
+		if (type == symbols->mask)
+			return symbols->name;
+	}
+	return "<invalid>";
+}
+#endif
+
+#undef __print_symbolic
+#define __print_symbolic(value, symbol_array...)			\
+	({								\
+		static const struct trace_print_flags symbols[] =	\
+			{ symbol_array, { -1, NULL }};			\
+		__print_symbolic_str(value, symbols);			\
+	})