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Diffstat (limited to 'tools/bpf/bpftool/json_writer.h')
-rw-r--r--tools/bpf/bpftool/json_writer.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/bpf/bpftool/json_writer.h b/tools/bpf/bpftool/json_writer.h
index cb9a1993681c..35cf1f00f96c 100644
--- a/tools/bpf/bpftool/json_writer.h
+++ b/tools/bpf/bpftool/json_writer.h
@@ -14,6 +14,7 @@
#include <stdbool.h>
#include <stdint.h>
#include <stdarg.h>
+#include <linux/compiler.h>
/* Opaque class structure */
typedef struct json_writer json_writer_t;
@@ -30,8 +31,9 @@ void jsonw_pretty(json_writer_t *self, bool on);
void jsonw_name(json_writer_t *self, const char *name);
/* Add value */
-void jsonw_vprintf_enquote(json_writer_t *self, const char *fmt, va_list ap);
-void jsonw_printf(json_writer_t *self, const char *fmt, ...);
+void __printf(2, 0) jsonw_vprintf_enquote(json_writer_t *self, const char *fmt,
+ va_list ap);
+void __printf(2, 3) jsonw_printf(json_writer_t *self, const char *fmt, ...);
void jsonw_string(json_writer_t *self, const char *value);
void jsonw_bool(json_writer_t *self, bool value);
void jsonw_float(json_writer_t *self, double number);