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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>
This commit is contained in:
Felipe Balbi 2016-08-24 14:37:22 +03:00
parent ba1582f222
commit 7ae7df4982
1 changed files with 7 additions and 9 deletions
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16
drivers/usb/dwc3/gadget.c
View File

@ -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;
}
}