1 files changed, 8 insertions, 0 deletions
diff --git a/lib/common.h b/lib/common.h
index 40b9b27..c4de49a 100644
--- a/lib/common.h
+++ b/lib/common.h
@@ -77,6 +77,14 @@ ERROR_PTR(int err)
     return NULL;
 }
 
+/* Saturating uint32_t addition. */
+static inline uint32_t
+satadd_u32(uint32_t a, uint32_t b)
+{
+    uint64_t res = a + b;
+    return (res < a) ? UINT32_MAX : res;
+}
+
 /* Saturating uint64_t addition. */
 static inline uint64_t
 satadd_u64(uint64_t a, uint64_t b)