From f706644d55f90e8306d87060168fef33804d6dd9 Mon Sep 17 00:00:00 2001 From: Oliver Hartkopp Date: Thu, 4 Dec 2008 15:01:08 -0800 Subject: [PATCH] can: omit received RTR frames for single ID filter lists Since commit d253eee20195b25e298bf162a6e72f14bf4803e5 the single CAN identifier filter lists handle only non-RTR CAN frames. So we need to omit the check of these filter lists when receiving RTR CAN frames. Signed-off-by: Oliver Hartkopp Signed-off-by: David S. Miller --- net/can/af_can.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/net/can/af_can.c b/net/can/af_can.c index d8173e50cb87..3dadb338addd 100644 --- a/net/can/af_can.c +++ b/net/can/af_can.c @@ -622,7 +622,10 @@ static int can_rcv_filter(struct dev_rcv_lists *d, struct sk_buff *skb) } } - /* check CAN_ID specific entries */ + /* check filterlists for single non-RTR can_ids */ + if (can_id & CAN_RTR_FLAG) + return matches; + if (can_id & CAN_EFF_FLAG) { hlist_for_each_entry_rcu(r, n, &d->rx[RX_EFF], list) { if (r->can_id == can_id) { -- 2.20.1