diff --git a/qemu/include/qemu/cutils.h b/qemu/include/qemu/cutils.h
index ce7243a8..e172aff4 100644
--- a/qemu/include/qemu/cutils.h
+++ b/qemu/include/qemu/cutils.h
@@ -130,22 +130,8 @@ int qemu_strtoi64(const char *nptr, const char **endptr, int base,
                   int64_t *result);
 int qemu_strtou64(const char *nptr, const char **endptr, int base,
                   uint64_t *result);
-/*
- * qemu_strtosz() suffixes used to specify the default treatment of an
- * argument passed to qemu_strtosz() without an explicit suffix.
- * These should be defined using upper case characters in the range
- * A-Z, as qemu_strtosz() will use qemu_toupper() on the given argument
- * prior to comparison.
- */
-#define QEMU_STRTOSZ_DEFSUFFIX_EB 'E'
-#define QEMU_STRTOSZ_DEFSUFFIX_PB 'P'
-#define QEMU_STRTOSZ_DEFSUFFIX_TB 'T'
-#define QEMU_STRTOSZ_DEFSUFFIX_GB 'G'
-#define QEMU_STRTOSZ_DEFSUFFIX_MB 'M'
-#define QEMU_STRTOSZ_DEFSUFFIX_KB 'K'
-#define QEMU_STRTOSZ_DEFSUFFIX_B 'B'
-int64_t qemu_strtosz_suffix(const char *nptr, char **end,
-                            const char default_suffix);
+
+int64_t qemu_strtosz(const char *nptr, char **end);
 int64_t qemu_strtosz_MiB(const char *nptr, char **end);
 int64_t qemu_strtosz_metric(const char *nptr, char **end);
 
diff --git a/qemu/util/cutils.c b/qemu/util/cutils.c
index f44b4754..bf5147a5 100644
--- a/qemu/util/cutils.c
+++ b/qemu/util/cutils.c
@@ -127,6 +127,14 @@ char *qemu_strsep(char **input, const char *delim)
     return result;
 }
 
+#define QEMU_STRTOSZ_DEFSUFFIX_EB 'E'
+#define QEMU_STRTOSZ_DEFSUFFIX_PB 'P'
+#define QEMU_STRTOSZ_DEFSUFFIX_TB 'T'
+#define QEMU_STRTOSZ_DEFSUFFIX_GB 'G'
+#define QEMU_STRTOSZ_DEFSUFFIX_MB 'M'
+#define QEMU_STRTOSZ_DEFSUFFIX_KB 'K'
+#define QEMU_STRTOSZ_DEFSUFFIX_B 'B'
+
 static int64_t suffix_mul(char suffix, int64_t unit)
 {
     switch (qemu_toupper(suffix)) {
@@ -197,15 +205,14 @@ fail:
     return retval;
 }
 
-int64_t qemu_strtosz_suffix(const char *nptr, char **end,
-                            const char default_suffix)
+int64_t qemu_strtosz(const char *nptr, char **end)
 {
-    return do_strtosz(nptr, end, default_suffix, 1024);
+    return do_strtosz(nptr, end, QEMU_STRTOSZ_DEFSUFFIX_B, 1024);
 }
 
 int64_t qemu_strtosz_MiB(const char *nptr, char **end)
 {
-    return qemu_strtosz_suffix(nptr, end, QEMU_STRTOSZ_DEFSUFFIX_MB);
+    return do_strtosz(nptr, end, QEMU_STRTOSZ_DEFSUFFIX_MB, 1024);
 }
 
 int64_t qemu_strtosz_metric(const char *nptr, char **end)