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-rw-r--r--kernel/trace/ftrace.c6
1 files changed, 4 insertions, 2 deletions
diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c
index 1595df0d7d79..a9cfc8713198 100644
--- a/kernel/trace/ftrace.c
+++ b/kernel/trace/ftrace.c
@@ -4561,6 +4561,8 @@ enum graph_filter_type {
GRAPH_FILTER_FUNCTION,
};
+#define FTRACE_GRAPH_EMPTY ((void *)1)
+
struct ftrace_graph_data {
struct ftrace_hash *hash;
struct ftrace_func_entry *entry;
@@ -4616,7 +4618,7 @@ static void *g_start(struct seq_file *m, loff_t *pos)
/* Nothing, tell g_show to print all functions are enabled */
if (ftrace_hash_empty(fgd->hash) && !*pos)
- return (void *)1;
+ return FTRACE_GRAPH_EMPTY;
fgd->idx = 0;
fgd->entry = NULL;
@@ -4635,7 +4637,7 @@ static int g_show(struct seq_file *m, void *v)
if (!entry)
return 0;
- if (entry == (void *)1) {
+ if (entry == FTRACE_GRAPH_EMPTY) {
struct ftrace_graph_data *fgd = m->private;
if (fgd->type == GRAPH_FILTER_FUNCTION)