The rte_smp_rmb helper is no longer used.
Signed-off-by: Stephen Hemminger <[email protected]>
---
drivers/crypto/virtio/virtqueue.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/crypto/virtio/virtqueue.h
b/drivers/crypto/virtio/virtqueue.h
index 97a3ace48c..6ef40d3593 100644
--- a/drivers/crypto/virtio/virtqueue.h
+++ b/drivers/crypto/virtio/virtqueue.h
@@ -302,11 +302,11 @@ virtqueue_nused(const struct virtqueue *vq)
if (vq->hw->weak_barriers) {
/**
- * x86 prefers to using rte_smp_rmb over rte_atomic_load_explicit as it
+ * x86 prefers virtio_rmb over rte_atomic_load_explicit as it
* reports a slightly better perf, which comes from the saved
- * branch by the compiler.
- * The if and else branches are identical with the smp and io
- * barriers both defined as compiler barriers on x86.
+ * branch by the compiler: on x86 this makes the two branches
+ * identical, since virtio_rmb(0) is rte_io_rmb(), only a
+ * compiler barrier, and loads are not reordered with loads.
*/
#ifdef RTE_ARCH_X86_64
idx = vq->vq_split.ring.used->idx;
--
2.53.0
