Commit fa3a6cb4 authored by Al Viro's avatar Al Viro Committed by Jeff Garzik
Browse files

annotate cxgb3 (ab)uses of skb->priority/skb->csum 



Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: default avatarJeff Garzik <jeff@garzik.org>
parent 2f220e30

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