For High-Speed Transfers the prepare_one_trb function is calculating the
multiplier setting for the trb based on the length parameter of the trb
currently prepared. This assumption is wrong. For trbs with a sg list,
the length of the actual request has to be taken instead.
Signed-off-by: Michael Grzeschik <m.grzeschik@xxxxxxxxxxxxxx>
---
v1 -> v2: - added refactor patch before this patch
- using req->request.length as condition value
drivers/usb/dwc3/gadget.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index dcd8fc209ccd6a..4366c45c28cf6d 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1265,10 +1265,10 @@ static void dwc3_prepare_one_trb(struct dwc3_ep *dep,
unsigned int mult = 2;
unsigned int maxp = usb_endpoint_maxp(ep->desc);
- if (trb_length <= (2 * maxp))
+ if (req->request.length <= (2 * maxp))
mult--;
- if (trb_length <= maxp)
+ if (req->request.length <= maxp)
mult--;
trb->size |= DWC3_TRB_SIZE_PCM1(mult);
--
2.30.2
