diff --git a/lib/iov_iter.c b/lib/iov_iter.c
index 93ae0c2c8d66..763114a754c5 100644
--- a/lib/iov_iter.c
+++ b/lib/iov_iter.c
@@ -117,7 +117,7 @@
 #define iterate_and_advance(i, n, v, I, B, K, X) {		\
 	if (unlikely(i->count < n))				\
 		n = i->count;					\
-	if (i->count) {						\
+	if (likely(n)) {					\
 		size_t skip = i->iov_offset;			\
 		if (likely(iter_is_iovec(i))) {			\
 			const struct iovec *iov;		\