These two fields will be used in a follow-up patch
to track how many entries of request's sglist we
have already processed. The reason is that if a
gadget driver sends an sglist with more entries then
we can fit in the ring, we will have to continue
processing remaining afterwards.
Signed-off-by: Felipe Balbi <felipe.balbi@xxxxxxxxxxxxxxx>
---
drivers/usb/dwc3/core.h | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 45d6de5107c7..1a6cc48fc7c4 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -685,6 +685,8 @@ struct dwc3_hwparams {
* @request: struct usb_request to be transferred
* @list: a list_head used for request queueing
* @dep: struct dwc3_ep owning this request
+ * @sg: pointer to first incomplete sg
+ * @num_pending_sgs: counter to pending sgs
* @first_trb_index: index to first trb used by this request
* @epnum: endpoint number to which this request refers
* @trb: pointer to struct dwc3_trb
@@ -697,7 +699,9 @@ struct dwc3_request {
struct usb_request request;
struct list_head list;
struct dwc3_ep *dep;
+ struct scatterlist *sg;
+ unsigned num_pending_sgs;
u8 first_trb_index;
u8 epnum;
struct dwc3_trb *trb;
--
2.9.1
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