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authorToke Høiland-Jørgensen <toke@redhat.com>2019-04-04 15:01:33 +0200
committerDavid S. Miller <davem@davemloft.net>2019-04-04 10:55:59 -0700
commitb2100cc56fca8c51d28aa42a9f1fbcb2cf351996 (patch)
treef31ed49cb46d49d2d89516a7164784dd71e1c0c7 /net/sched
parentaecfde23108b8e637d9f5c5e523b24fb97035dc3 (diff)
downloadlinux-b2100cc56fca8c51d28aa42a9f1fbcb2cf351996.tar.gz
sch_cake: Use tc_skb_protocol() helper for getting packet protocol
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>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/sched')
-rw-r--r--net/sched/sch_cake.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/sched/sch_cake.c b/net/sched/sch_cake.c
index acc9b9da985f..a3b55e18df04 100644
--- a/net/sched/sch_cake.c
+++ b/net/sched/sch_cake.c
@@ -1519,7 +1519,7 @@ 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)