On Tue, Mar 20, 2012 at 3:39 PM, <[email protected]> wrote:
> +struct ocrdma_queue_info {
> + void *va;
> + dma_addr_t dma;
> + u32 size;
> + u16 len;
> + u16 entry_size; /* Size of an element in the queue */
> + u16 id; /* qid, where to ring the doorbell. */
> + u16 head, tail;
> + bool created;
> + atomic_t used; /* Number of valid elements in the queue */
> +};
Forgot to mention this before... the only place the used member is touched
that I can find is
> +static inline void ocrdma_mq_inc_head(struct ocrdma_dev *dev)
> +{
> + dev->mq.sq.head = (dev->mq.sq.head + 1) & (OCRDMA_MQ_LEN - 1);
> + atomic_inc(&dev->mq.sq.used);
> +}
but I don't see anywhere that it gets read. Can "used" be deleted?
- R.
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