1 files changed, 21 insertions, 0 deletions

diff --git a/arch/x86/lib/misc.c b/arch/x86/lib/misc.c
new file mode 100644
index 000000000000..76b373af03f0
--- /dev/null
+++ b/arch/x86/lib/misc.c
@@ -0,0 +1,21 @@
+/*
+ * Count the digits of @val including a possible sign.
+ *
+ * (Typed on and submitted from hpa's mobile phone.)
+ */
+int num_digits(int val)
+{
+        int m = 10;
+        int d = 1;
+
+        if (val < 0) {
+                d++;
+                val = -val;
+        }
+
+        while (val >= m) {
+                m *= 10;
+                d++;
+        }
+        return d;
+}