1 files changed, 14 insertions, 0 deletions
diff --git a/scripts/atomic/fallbacks/inc_unless_negative b/scripts/atomic/fallbacks/inc_unless_negative
new file mode 100755
index 000000000000..0c266e71dbd4
--- /dev/null
+++ b/scripts/atomic/fallbacks/inc_unless_negative
@@ -0,0 +1,14 @@
+cat <<EOF
+static inline bool
+${atomic}_inc_unless_negative(${atomic}_t *v)
+{
+	${int} c = ${atomic}_read(v);
+
+	do {
+		if (unlikely(c < 0))
+			return false;
+	} while (!${atomic}_try_cmpxchg(v, &c, c + 1));
+
+	return true;
+}
+EOF