From: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
If we collected two requests together (i.e. only the last of them has
LST=1) then we only have to stop transfer once: The clean-up code will
cleanup everything until first TRB with the LST bit set.
After XferComplete this index should be no longer valid since there is
no transfer pending.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@xxxxxxxxxxxxx>
Signed-off-by: Felipe Balbi <balbi@xxxxxx>
---
drivers/usb/dwc3/gadget.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 56f0e46..a324957 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1366,8 +1366,10 @@ static void dwc3_endpoint_transfer_complete(struct dwc3 *dwc,
status = -ECONNRESET;
clean_busy = dwc3_cleanup_done_reqs(dwc, dep, event, status);
- if (clean_busy)
+ if (clean_busy) {
dep->flags &= ~DWC3_EP_BUSY;
+ dep->res_trans_idx = 0;
+ }
}
static void dwc3_gadget_start_isoc(struct dwc3 *dwc,
@@ -1537,6 +1539,7 @@ static void dwc3_stop_active_transfer(struct dwc3 *dwc, u32 epnum)
memset(¶ms, 0, sizeof(params));
ret = dwc3_send_gadget_ep_cmd(dwc, dep->number, cmd, ¶ms);
WARN_ON_ONCE(ret);
+ dep->res_trans_idx = 0;
}
}
--
1.7.7
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