tracing/trace_stack: Cleanup for trace_lookup_stack()

Xiao Guangrong · fweisbec · commit 79173bf55641 · 2009-07-17T01:44:10.000-04:00
We can directly use %pF input format instead of sprint_symbol()
and %s input format.

Signed-off-by: Xiao Guangrong &lt;xiaoguangrong@cn.fujitsu.com&gt;
Reviewed-by: Li Zefan &lt;lizf@cn.fujitsu.com&gt;
Signed-off-by: Frederic Weisbecker &lt;fweisbec@gmail.com&gt;
diff --git a/kernel/trace/trace_stack.c b/kernel/trace/trace_stack.c
@@ -234,15 +234,8 @@ static void t_stop(struct seq_file *m, void *p)
 static int trace_lookup_stack(struct seq_file *m, long i)
 {
 	unsigned long addr = stack_dump_trace[i];
-#ifdef CONFIG_KALLSYMS
-	char str[KSYM_SYMBOL_LEN];
 
-	sprint_symbol(str, addr);
-
-	return seq_printf(m, "%s\n", str);
-#else
-	return seq_printf(m, "%p\n", (void*)addr);
-#endif
+	return seq_printf(m, "%pF\n", (void *)addr);
 }
 
 static void print_disabled(struct seq_file *m)
