On 17/12/2013 13:57, Dan Carpenter wrote:
> 838 if (ring->bf_enabled && desc_size <= MAX_BF && !bounce && !vlan_tx_tag_present(skb)) {
> 839 *(__be32 *) (&tx_desc->ctrl.vlan_tag) |= cpu_to_be32(ring->doorbell_qpn);
>
> And then sometimes we overwrite them here. It's not clear if this is
> deliberate or accidental. Maybe add a comment?
Yes, this is deliberate.
I will send a patch to make it clearer.
Amir
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