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

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
This commit is contained in:
Al Viro 2008-03-16 22:22:54 +00:00 committed by Jeff Garzik
parent 2f220e305b
commit fa3a6cb4a6
1 changed files with 19 additions and 3 deletions
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22
drivers/net/cxgb3/cxgb3_offload.c
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@ -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