1 files changed, 11 insertions, 8 deletions

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index ded74590b92f..290c2e6d4001 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -496,19 +496,22 @@ static int symbol__in_kernel(void *arg, const char *name,
         return 1;
 }
 
+static void machine__get_kallsyms_filename(struct machine *machine, char *buf,
+                                           size_t bufsz)
+{
+        if (machine__is_default_guest(machine))
+                scnprintf(buf, bufsz, "%s", symbol_conf.default_guest_kallsyms);
+        else
+                scnprintf(buf, bufsz, "%s/proc/kallsyms", machine->root_dir);
+}
+
 /* Figure out the start address of kernel map from /proc/kallsyms */
 static u64 machine__get_kernel_start_addr(struct machine *machine)
 {
-        const char *filename;
-        char path[PATH_MAX];
+        char filename[PATH_MAX];
         struct process_args args;
 
-        if (machine__is_default_guest(machine))
-                filename = (char *)symbol_conf.default_guest_kallsyms;
-        else {
-                sprintf(path, "%s/proc/kallsyms", machine->root_dir);
-                filename = path;
-        }
+        machine__get_kallsyms_filename(machine, filename, PATH_MAX);
 
         if (symbol__restricted_filename(filename, "/proc/kallsyms"))
                 return 0;