[dpdk-dev] [PATCH 2/2] vhost: fix header copy to discontiguous desc buffer

[Maxime Coquelin <maxime.coquelin@redhat.com>]

In the loop to copy virtio-net header to the descriptor buffer,
destination pointer was incremented instead of the source
pointer.

Fixes: fb3815cc614d ("vhost: handle virtually non-contiguous buffers in Rx-mrg")
Fixes: 6727f5a739b6 ("vhost: handle virtually non-contiguous buffers in Rx")

Cc: stable@dpdk.org

Signed-off-by: Maxime Coquelin <maxime.coquelin@redhat.com>
---
 lib/librte_vhost/virtio_net.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/librte_vhost/virtio_net.c b/lib/librte_vhost/virtio_net.c
index 5fdd4172b..eed6b0227 100644
--- a/lib/librte_vhost/virtio_net.c
+++ b/lib/librte_vhost/virtio_net.c
@@ -277,7 +277,7 @@ copy_mbuf_to_desc(struct virtio_net *dev, struct vhost_virtqueue *vq,
 			vhost_log_write(dev, guest_addr, len);
 			remain -= len;
 			guest_addr += len;
-			dst += len;
+			src += len;
 		}
 	}
 
@@ -771,7 +771,7 @@ copy_mbuf_to_desc_mergeable(struct virtio_net *dev, struct vhost_virtqueue *vq,
 
 					remain -= len;
 					guest_addr += len;
-					dst += len;
+					src += len;
 				}
 			} else {
 				PRINT_PACKET(dev, (uintptr_t)hdr_addr,
-- 
2.14.3