| Message ID | 1600941239-19435-1-git-send-email-loic.poulain@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | net: qrtr: Fix port ID for control messages | expand |
On Thu 24 Sep 04:53 CDT 2020, Loic Poulain wrote: > The port ID for control messages was uncorrectly set with broadcast > node ID value, causing message to be dropped on remote side since > not passing packet filtering (cb->dst_port != QRTR_PORT_CTRL). > This does indeed make more sense. Unfortunately after reading the documentation a few times I do believe that it doesn't actually specify the expected port (only the node id) - and that the recipient shall ignore "the field"... Chris, can you please let us know what the actual expectation of the modem is? (SDX55 in this case, but Arun must have tested this on something with more lax expectations?) Regards, Bjorn > Fixes: d27e77a3de28 ("net: qrtr: Reset the node and port ID of broadcast messages") > Signed-off-by: Loic Poulain <loic.poulain@linaro.org> > --- > net/qrtr/qrtr.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c > index b4c0db0..e09154b 100644 > --- a/net/qrtr/qrtr.c > +++ b/net/qrtr/qrtr.c > @@ -348,7 +348,7 @@ static int qrtr_node_enqueue(struct qrtr_node *node, struct sk_buff *skb, > hdr->src_port_id = cpu_to_le32(from->sq_port); > if (to->sq_port == QRTR_PORT_CTRL) { > hdr->dst_node_id = cpu_to_le32(node->nid); > - hdr->dst_port_id = cpu_to_le32(QRTR_NODE_BCAST); > + hdr->dst_port_id = cpu_to_le32(QRTR_PORT_CTRL); > } else { > hdr->dst_node_id = cpu_to_le32(to->sq_node); > hdr->dst_port_id = cpu_to_le32(to->sq_port); > -- > 2.7.4 >
diff --git a/net/qrtr/qrtr.c b/net/qrtr/qrtr.c index b4c0db0..e09154b 100644 --- a/net/qrtr/qrtr.c +++ b/net/qrtr/qrtr.c @@ -348,7 +348,7 @@ static int qrtr_node_enqueue(struct qrtr_node *node, struct sk_buff *skb, hdr->src_port_id = cpu_to_le32(from->sq_port); if (to->sq_port == QRTR_PORT_CTRL) { hdr->dst_node_id = cpu_to_le32(node->nid); - hdr->dst_port_id = cpu_to_le32(QRTR_NODE_BCAST); + hdr->dst_port_id = cpu_to_le32(QRTR_PORT_CTRL); } else { hdr->dst_node_id = cpu_to_le32(to->sq_node); hdr->dst_port_id = cpu_to_le32(to->sq_port);
The port ID for control messages was uncorrectly set with broadcast node ID value, causing message to be dropped on remote side since not passing packet filtering (cb->dst_port != QRTR_PORT_CTRL). Fixes: d27e77a3de28 ("net: qrtr: Reset the node and port ID of broadcast messages") Signed-off-by: Loic Poulain <loic.poulain@linaro.org> --- net/qrtr/qrtr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 2.7.4