diff --git a/tools/perf/util/strbuf.c b/tools/perf/util/strbuf.c
index d3d279275432ee663641a1a6dbb0a0cf8d3b8334..8fb73295ec34cd74150cf77e042a3a7b39611cfe 100644
--- a/tools/perf/util/strbuf.c
+++ b/tools/perf/util/strbuf.c
@@ -51,6 +51,13 @@ void strbuf_grow(struct strbuf *sb, size_t extra)
 	ALLOC_GROW(sb->buf, sb->len + extra + 1, sb->alloc);
 }
 
+void strbuf_addch(struct strbuf *sb, int c)
+{
+	strbuf_grow(sb, 1);
+	sb->buf[sb->len++] = c;
+	sb->buf[sb->len] = '\0';
+}
+
 void strbuf_add(struct strbuf *sb, const void *data, size_t len)
 {
 	strbuf_grow(sb, len);
@@ -58,7 +65,7 @@ void strbuf_add(struct strbuf *sb, const void *data, size_t len)
 	strbuf_setlen(sb, sb->len + len);
 }
 
-void strbuf_addv(struct strbuf *sb, const char *fmt, va_list ap)
+static void strbuf_addv(struct strbuf *sb, const char *fmt, va_list ap)
 {
 	int len;
 	va_list ap_saved;
diff --git a/tools/perf/util/strbuf.h b/tools/perf/util/strbuf.h
index b73cbaaf93bcc0acff97c3238a54c500a1b6888c..ab9be0fbbd406456b98acb4bbc3bfe1ef56deeb1 100644
--- a/tools/perf/util/strbuf.h
+++ b/tools/perf/util/strbuf.h
@@ -71,11 +71,7 @@ static inline void strbuf_setlen(struct strbuf *sb, size_t len) {
 }
 
 /*----- add data in your buffer -----*/
-static inline void strbuf_addch(struct strbuf *sb, int c) {
-	strbuf_grow(sb, 1);
-	sb->buf[sb->len++] = c;
-	sb->buf[sb->len] = '\0';
-}
+void strbuf_addch(struct strbuf *sb, int c);
 
 void strbuf_add(struct strbuf *buf, const void *, size_t);
 static inline void strbuf_addstr(struct strbuf *sb, const char *s) {
@@ -84,7 +80,6 @@ static inline void strbuf_addstr(struct strbuf *sb, const char *s) {
 
 __attribute__((format(printf,2,3)))
 void strbuf_addf(struct strbuf *sb, const char *fmt, ...);
-void strbuf_addv(struct strbuf *sb, const char *fmt, va_list ap);
 
 /* XXX: if read fails, any partial read is undone */
 ssize_t strbuf_read(struct strbuf *, int fd, ssize_t hint);