[PATCH 4.17 045/101] VSOCK: fix loopback on big-endian systems

[Greg Kroah-Hartman]

4.17-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Claudio Imbrenda <imbrenda@xxxxxxxxxxxxxxxxxx>

[ Upstream commit e5ab564c9ebee77794842ca7d7476147b83d6a27 ]

The dst_cid and src_cid are 64 bits, therefore 64 bit accessors should be
used, and in fact in virtio_transport_common.c only 64 bit accessors are
used. Using 32 bit accessors for 64 bit values breaks big endian systems.

This patch fixes a wrong use of le32_to_cpu in virtio_transport_send_pkt.

Fixes: b9116823189e85ccf384 ("VSOCK: add loopback to virtio_transport")

Signed-off-by: Claudio Imbrenda <imbrenda@xxxxxxxxxxxxxxxxxx>
Reviewed-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 net/vmw_vsock/virtio_transport.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/net/vmw_vsock/virtio_transport.c
+++ b/net/vmw_vsock/virtio_transport.c
@@ -201,7 +201,7 @@ virtio_transport_send_pkt(struct virtio_
 		return -ENODEV;
 	}
 
-	if (le32_to_cpu(pkt->hdr.dst_cid) == vsock->guest_cid)
+	if (le64_to_cpu(pkt->hdr.dst_cid) == vsock->guest_cid)
 		return virtio_transport_send_pkt_loopback(vsock, pkt);
 
 	if (pkt->reply)