commit b4b6d4a02fa8aa8187d426b508fb7f3b69df0dcc
author Andrew Scull <ascull@google.com> Wed Jan 02 15:54:55 2019 +0000
committer Andrew Scull <ascull@google.com> Wed Jan 02 15:54:55 2019 +0000
tree fdf4498bc30cb80757eaf20b46ea866b23141a93

v4.19.13 snapshot.

arch/x86/lib/misc.c

diff --git a/arch/x86/lib/misc.c b/arch/x86/lib/misc.c
new file mode 100644
index 0000000..a018ec4
--- /dev/null
+++ b/arch/x86/lib/misc.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * 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;
+}