ftrace: warning in kernel/trace/ftrace.c
this warning:
kernel/trace/ftrace.c:189: warning: ‘frozen_record_count’ defined but not used
triggers because frozen_record_count is only used in the KCONFIG_MARKERS
case. Move the variable it there.
Alas, this frozen-record facility seems to have little use. The
frozen_record_count variable is not used by anything, nor the flags.
So this section might need a bit of dead-code-removal care as well.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 2721232..7618c52 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -186,7 +186,6 @@
static int ftrace_filtered;
static int tracing_on;
-static int frozen_record_count;
static LIST_HEAD(ftrace_new_addrs);
@@ -211,6 +210,9 @@
#ifdef CONFIG_KPROBES
+
+static int frozen_record_count;
+
static inline void freeze_record(struct dyn_ftrace *rec)
{
if (!(rec->flags & FTRACE_FL_FROZEN)) {
@@ -1443,3 +1445,4 @@
mutex_unlock(&ftrace_sysctl_lock);
return ret;
}
+