[UNIKRAFT PATCH,v2,10/15] lib/ukring: Disable use of CPU prefetching

[Alexander Jung <a.jung@xxxxxxxxxxx>]

Signed-off-by: Alexander Jung <alexander.jung@xxxxxxxxx>
---
 lib/ukring/include/uk/ring.h | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/lib/ukring/include/uk/ring.h b/lib/ukring/include/uk/ring.h
index e1a0387..b51a11a 100644
--- a/lib/ukring/include/uk/ring.h
+++ b/lib/ukring/include/uk/ring.h
@@ -177,7 +177,8 @@ static __inline void *
 uk_ring_dequeue_single(struct uk_ring *r)
 {
   uint32_t cons_head, cons_next;
-#ifdef PREFETCH_DEFINED
+  /* TODO: Support CPU prefetchhing. */
+#if 0
   uint32_t cons_next_next;
 #endif
   uint32_t prod_tail;
@@ -219,14 +220,16 @@ uk_ring_dequeue_single(struct uk_ring *r)
   prod_tail = &r->prod_tail;
 
   cons_next = (cons_head + 1) & r->cons_mask;
-#ifdef PREFETCH_DEFINED
+  /* TODO: Support CPU prefetchhing. */
+#if 0
   cons_next_next = (cons_head + 2) & r->cons_mask;
 #endif
 
   if (cons_head == prod_tail)
     return NULL;
 
-#ifdef PREFETCH_DEFINED
+  /* TODO: Support CPU prefetchhing. */
+#if 0
   if (cons_next != prod_tail) {
     prefetch(r->ring[cons_next]);
     if (cons_next_next != prod_tail)
-- 
2.20.1