From: Felipe Balbi Date: Tue, 5 Sep 2017 11:28:46 +0000 (+0300) Subject: usb: dwc3: gadget: check for lack of TRBs a bit earlier X-Git-Tag: v4.19~2224^2~117^2~46 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ccb94ebf9e65ca722c98df3885c2e3dfe832260c;p=platform%2Fkernel%2Flinux-rpi.git usb: dwc3: gadget: check for lack of TRBs a bit earlier This will let us call __dwc3_gadget_kick_transfer() unconditionally. No functional changes, cleanup only. Signed-off-by: Felipe Balbi --- diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index f064f15..a943f6e 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1151,9 +1151,6 @@ static void dwc3_prepare_trbs(struct dwc3_ep *dep) BUILD_BUG_ON_NOT_POWER_OF_2(DWC3_TRB_NUM); - if (!dwc3_calc_trbs_left(dep)) - return; - /* * We can get in a situation where there's a request in the started list * but there weren't enough TRBs to fully kick it in the first time @@ -1202,6 +1199,9 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param) int ret; u32 cmd; + if (!dwc3_calc_trbs_left(dep)) + return 0; + starting = !(dep->flags & DWC3_EP_BUSY); dwc3_prepare_trbs(dep);