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Message-ID: <174230515367.2909896.8132122175220657625.stgit@mhiramat.tok.corp.google.com>
Date: Tue, 18 Mar 2025 22:39:13 +0900
From: "Masami Hiramatsu (Google)" <mhiramat@...nel.org>
To: Steven Rostedt <rostedt@...dmis.org>
Cc: Masami Hiramatsu <mhiramat@...nel.org>,
Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
linux-kernel@...r.kernel.org,
linux-trace-kernel@...r.kernel.org
Subject: [PATCH v5 1/2] tracing: Fix a compilation error without CONFIG_MODULES
From: Masami Hiramatsu (Google) <mhiramat@...nel.org>
There are some code which depends on CONFIG_MODULES. #ifdef
to enclose it.
Fixes: dca91c1c5468 ("tracing: Have persistent trace instances save module addresses")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@...nel.org>
---
Changes in v5:
- Make a nop save_mod() if CONFIG_MODULES=n instead of
adding #ifdefs around module_for_each_mod().
---
kernel/trace/trace.c | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index c3c79908766e..68abea81e51a 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -6001,6 +6001,7 @@ struct trace_scratch {
static DEFINE_MUTEX(scratch_mutex);
+#ifdef CONFIG_MODULES
static int save_mod(struct module *mod, void *data)
{
struct trace_array *tr = data;
@@ -6025,6 +6026,12 @@ static int save_mod(struct module *mod, void *data)
return 0;
}
+#else
+static int save_mod(struct module *mod, void *data)
+{
+ return 0;
+}
+#endif
static void update_last_data(struct trace_array *tr)
{
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