Commit bbd669a868bba591ffd38b7bc75a7b361bb54b04 upstream.
We shouldn't be using skb->protocol directly as that will miss cases with hardware-accelerated VLAN tags. Use the helper instead to get the right protocol number.
Reported-by: Kevin Darbyshire-Bryant kevin@darbyshire-bryant.me.uk Signed-off-by: Toke Høiland-Jørgensen toke@redhat.com --- net/sched/sch_cake.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c index 640f00e9f665..de92b5d81ca6 100644 --- a/net/sched/sch_cake.c +++ b/net/sched/sch_cake.c @@ -1512,7 +1512,7 @@ static u8 cake_handle_diffserv(struct sk_buff *skb, u16 wash) { u8 dscp;
- switch (skb->protocol) { + switch (tc_skb_protocol(skb)) { case htons(ETH_P_IP): dscp = ipv4_get_dsfield(ip_hdr(skb)) >> 2; if (wash && dscp)