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| author | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-08-24 11:37:22 (GMT) |
|---|---|---|
| committer | Felipe Balbi <felipe.balbi@linux.intel.com> | 2016-08-25 09:13:20 (GMT) |
| commit | 7ae7df4982af6aed25c5e9e71b91027a494149de (patch) | |
| tree | 14507120e6cbc5056ab9225f4e48cfc6a3e701de | |
| parent | ba1582f22231821c57534e87b077d84adbc15dbd (diff) | |
| download | linux-7ae7df4982af6aed25c5e9e71b91027a494149de.tar.xz | |
usb: dwc3: gadget: abolish trbs_left
Instead, we can always rely on dwc3_calc_trbs_left()
directly.
Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index 161a6bf..104b145 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -886,7 +886,7 @@ static u32 dwc3_calc_trbs_left(struct dwc3_ep *dep) } static void dwc3_prepare_one_trb_sg(struct dwc3_ep *dep, - struct dwc3_request *req, unsigned int trbs_left) + struct dwc3_request *req) { struct scatterlist *sg = req->sg; struct scatterlist *s; @@ -906,13 +906,13 @@ static void dwc3_prepare_one_trb_sg(struct dwc3_ep *dep, dwc3_prepare_one_trb(dep, req, dma, length, chain, i); - if (!trbs_left--) + if (!dwc3_calc_trbs_left(dep)) break; } } static void dwc3_prepare_one_trb_linear(struct dwc3_ep *dep, - struct dwc3_request *req, unsigned int trbs_left) + struct dwc3_request *req) { unsigned int length; dma_addr_t dma; @@ -935,21 +935,19 @@ static void dwc3_prepare_one_trb_linear(struct dwc3_ep *dep, static void dwc3_prepare_trbs(struct dwc3_ep *dep) { struct dwc3_request *req, *n; - u32 trbs_left; BUILD_BUG_ON_NOT_POWER_OF_2(DWC3_TRB_NUM); - trbs_left = dwc3_calc_trbs_left(dep); - if (!trbs_left) + if (!dwc3_calc_trbs_left(dep)) return; list_for_each_entry_safe(req, n, &dep->pending_list, list) { if (req->num_pending_sgs > 0) - dwc3_prepare_one_trb_sg(dep, req, trbs_left--); + dwc3_prepare_one_trb_sg(dep, req); else - dwc3_prepare_one_trb_linear(dep, req, trbs_left--); + dwc3_prepare_one_trb_linear(dep, req); - if (!trbs_left) + if (!dwc3_calc_trbs_left(dep)) return; } } |