mbuf: replace data pointer by an offset

[dpdk.git] / lib / librte_pmd_virtio / virtqueue.h

diff --git a/lib/librte_pmd_virtio/virtqueue.h b/lib/librte_pmd_virtio/virtqueue.h
index d777feb..fdee054 100644 (file)
--- a/lib/librte_pmd_virtio/virtqueue.h
+++ b/lib/librte_pmd_virtio/virtqueue.h
@@ -59,8 +59,7 @@
 #define VIRTQUEUE_MAX_NAME_SZ 32
 
 #define RTE_MBUF_DATA_DMA_ADDR(mb) \
-       (uint64_t) ((mb)->buf_physaddr + (uint64_t)((char *)((mb)->data) - \
-       (char *)(mb)->buf_addr))
+       (uint64_t) ((mb)->buf_physaddr + (mb)->data_off)
 
 #define VTNET_SQ_RQ_QUEUE_IDX 0
 #define VTNET_SQ_TQ_QUEUE_IDX 1