4.17-stable review patch. If anyone has any objections, please let me know.
------------------
From: Anton Ivanov anton.ivanov@cambridgegreys.com
commit 5ec9121195a4f1cecd0fa592636c5f81eb03dc8c upstream.
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 Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/um/drivers/vector_kern.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)
--- a/arch/um/drivers/vector_kern.c +++ b/arch/um/drivers/vector_kern.c @@ -188,7 +188,7 @@ static int get_transport_options(struct 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_de
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);