annotate cxgb3 (ab)uses of skb->priority/skb->csum (fa3a6cb4) · Commits · e / devices / android_kernel_teracube_2e

drivers/net/cxgb3/cxgb3_offload.c

+19 −3

Original line number	Diff line number	Diff line
		@@ -833,10 +833,26 @@ static int do_trace(struct t3cdev dev, struct sk_buff skb)
		return 0;
		}

		/*
		* That skb would better have come from process_responses() where we abuse
		* ->priority and ->csum to carry our data. NB: if we get to per-arch
		* ->csum, the things might get really interesting here.
		*/

		static inline u32 get_hwtid(struct sk_buff *skb)
		{
		return ntohl((__force __be32)skb->priority) >> 8 & 0xfffff;
		}

		static inline u32 get_opcode(struct sk_buff *skb)
		{
		return G_OPCODE(ntohl((__force __be32)skb->csum));
		}

		static int do_term(struct t3cdev dev, struct sk_buff skb)
		{
		unsigned int hwtid = ntohl(skb->priority) >> 8 & 0xfffff;
		unsigned int opcode = G_OPCODE(ntohl(skb->csum));
		unsigned int hwtid = get_hwtid(skb);
		unsigned int opcode = get_opcode(skb);
		struct t3c_tid_entry *t3c_tid;

		t3c_tid = lookup_tid(&(T3C_DATA(dev))->tid_maps, hwtid);
		@@ -914,7 +930,7 @@ int process_rx(struct t3cdev dev, struct sk_buff *skbs, int n)
		{
		while (n--) {
		struct sk_buff skb = skbs++;
		unsigned int opcode = G_OPCODE(ntohl(skb->csum));
		unsigned int opcode = get_opcode(skb);
		int ret = cpl_handlers[opcode] (dev, skb);

		#if VALIDATE_TID