linux-kernel - [for-linus][PATCH 1/3] tracing/synthetic: Print out u64 values properly

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Message-ID: <20230912182240.156094298@goodmis.org>
Date:   Tue, 12 Sep 2023 14:22:14 -0400
From:   Steven Rostedt <rostedt@...dmis.org>
To:     linux-kernel@...r.kernel.org
Cc:     Masami Hiramatsu <mhiramat@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        stable@...r.kernel.org, Tero Kristo <tero.kristo@...ux.intel.com>
Subject: [for-linus][PATCH 1/3] tracing/synthetic: Print out u64 values properly

From: Tero Kristo <tero.kristo@...ux.intel.com>

The synth traces incorrectly print pointer to the synthetic event values
instead of the actual value when using u64 type. Fix by addressing the
contents of the union properly.

Link: https://lore.kernel.org/linux-trace-kernel/20230911141704.3585965-1-tero.kristo@linux.intel.com

Fixes: ddeea494a16f ("tracing/synthetic: Use union instead of casts")
Cc: stable@...r.kernel.org
Signed-off-by: Tero Kristo <tero.kristo@...ux.intel.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@...dmis.org>
---
 kernel/trace/trace_events_synth.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/kernel/trace/trace_events_synth.c b/kernel/trace/trace_events_synth.c
index 9897d0bfcab7..14cb275a0bab 100644
--- a/kernel/trace/trace_events_synth.c
+++ b/kernel/trace/trace_events_synth.c
@@ -337,7 +337,7 @@ static void print_synth_event_num_val(struct trace_seq *s,
 		break;
 
 	default:
-		trace_seq_printf(s, print_fmt, name, val, space);
+		trace_seq_printf(s, print_fmt, name, val->as_u64, space);
 		break;
 	}
 }
-- 
2.40.1