1 files changed, 4 insertions, 4 deletions

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 669953ab32eb..5a824e355d04 100644
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -174,7 +174,7 @@ static int cmdline_init(struct pevent *pevent)
         return 0;
 }
 
-static char *find_cmdline(struct pevent *pevent, int pid)
+static const char *find_cmdline(struct pevent *pevent, int pid)
 {
         const struct cmdline *comm;
         struct cmdline key;
@@ -2637,7 +2637,7 @@ process_func_handler(struct event_format *event, struct pevent_function_handler
         struct print_arg *farg;
         enum event_type type;
         char *token;
-        char *test;
+        const char *test;
         int i;
 
         arg->type = PRINT_FUNC;
@@ -3889,7 +3889,7 @@ static void print_mac_arg(struct trace_seq *s, int mac, void *data, int size,
                           struct event_format *event, struct print_arg *arg)
 {
         unsigned char *buf;
-        char *fmt = "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x";
+        const char *fmt = "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x";
 
         if (arg->type == PRINT_FUNC) {
                 process_defined_func(s, data, size, event, arg);
@@ -4409,7 +4409,7 @@ void pevent_event_info(struct trace_seq *s, struct event_format *event,
 void pevent_print_event(struct pevent *pevent, struct trace_seq *s,
                         struct pevent_record *record)
 {
-        static char *spaces = "                    "; /* 20 spaces */
+        static const char *spaces = "                    "; /* 20 spaces */
         struct event_format *event;
         unsigned long secs;
         unsigned long usecs;