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[v5,1/2] tracing: Fix a compilation error without CONFIG_MODULES

Message ID 174230515367.2909896.8132122175220657625.stgit@mhiramat.tok.corp.google.com (mailing list archive)
State Superseded
Commit f00c9201f942dddb58617c881ffd4e4a1a1c49ab
Headers show
Series tracing: Show last boot module symbols | expand

Commit Message

Masami Hiramatsu (Google) March 18, 2025, 1:39 p.m. UTC 
From: Masami Hiramatsu (Google) <mhiramat@kernel.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@kernel.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(+)
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Patch

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)
 {