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>
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@ -1519,7 +1519,7 @@ static u8 cake_handle_diffserv(struct sk_buff *skb, u16 wash)
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{
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u8 dscp;
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switch (skb->protocol) {
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switch (tc_skb_protocol(skb)) {
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case htons(ETH_P_IP):
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dscp = ipv4_get_dsfield(ip_hdr(skb)) >> 2;
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if (wash && dscp)
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