um: Fix raw interface options

Raw interface initialization needs QDISC_BYPASS. Otherwise
it sees its own packets when transmitting.

Fixes: 49da7e64f33e ("High Performance UML Vector Network Driver")
Cc: <stable@vger.kernel.org>
Signed-off-by: Anton Ivanov <anton.ivanov@cambridgegreys.com>
Signed-off-by: Richard Weinberger <richard@nod.at>

1 files changed, 2 insertions, 3 deletions

diff --git a/arch/um/drivers/vector_kern.c b/arch/um/drivers/vector_kern.c
index 8b852928959b..cf9bf9b43ec3 100644
--- a/arch/um/drivers/vector_kern.c
+++ b/arch/um/drivers/vector_kern.c
@@ -188,7 +188,7 @@ static int get_transport_options(struct arglist *def)
         if (strncmp(transport, TRANS_TAP, TRANS_TAP_LEN) == 0)
                 return (vec_rx | VECTOR_BPF);
         if (strncmp(transport, TRANS_RAW, TRANS_RAW_LEN) == 0)
-                return (vec_rx | vec_tx);
+                return (vec_rx | vec_tx | VECTOR_QDISC_BYPASS);
         return (vec_rx | vec_tx);
 }
 
@@ -1241,9 +1241,8 @@ static int vector_net_open(struct net_device *dev)
 
         if ((vp->options & VECTOR_QDISC_BYPASS) != 0) {
                 if (!uml_raw_enable_qdisc_bypass(vp->fds->rx_fd))
-                        vp->options = vp->options | VECTOR_BPF;
+                        vp->options |= VECTOR_BPF;
         }
-
         if ((vp->options & VECTOR_BPF) != 0)
                 vp->bpf = uml_vector_default_bpf(vp->fds->rx_fd, dev->dev_addr);