diff options
| author | Felipe Balbi <balbi@ti.com> | 2014-09-04 22:14:49 +0400 |
|---|---|---|
| committer | Felipe Balbi <balbi@ti.com> | 2015-03-09 18:38:49 +0300 |
| commit | 8f2c9544aba636134303105ecb164190a39dece4 (patch) | |
| tree | fb595ad1844b23f48b6cd5dd938d19eff4a80f5f /drivers/usb/dwc3/gadget.c | |
| parent | 3d0184d087573b7606de45a8e4f01b6222caa47a (diff) | |
| download | linux-8f2c9544aba636134303105ecb164190a39dece4.tar.xz | |
usb: dwc3: gadget: drop unnecessary loop when cleaning up TRBs
Now that we're using XFERINPROGRESS for all endpoint
types (except Control), we will *always* be completing
one TRB at a time, so it's safe to remove the loop
from dwc3_cleanup_done_reqs.
Signed-off-by: Felipe Balbi <balbi@ti.com>
Diffstat (limited to 'drivers/usb/dwc3/gadget.c')
| -rw-r--r-- | drivers/usb/dwc3/gadget.c | 37 |
1 files changed, 16 insertions, 21 deletions
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c index a03a485205c7..8946c32047e9 100644 --- a/drivers/usb/dwc3/gadget.c +++ b/drivers/usb/dwc3/gadget.c @@ -1855,32 +1855,27 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep, unsigned int i; int ret; + req = next_request(&dep->req_queued); + if (!req) { + WARN_ON_ONCE(1); + return 1; + } + i = 0; do { - req = next_request(&dep->req_queued); - if (!req) { - WARN_ON_ONCE(1); - return 1; - } - i = 0; - do { - slot = req->start_slot + i; - if ((slot == DWC3_TRB_NUM - 1) && + slot = req->start_slot + i; + if ((slot == DWC3_TRB_NUM - 1) && usb_endpoint_xfer_isoc(dep->endpoint.desc)) - slot++; - slot %= DWC3_TRB_NUM; - trb = &dep->trb_pool[slot]; - - ret = __dwc3_cleanup_done_trbs(dwc, dep, req, trb, - event, status); - if (ret) - break; - }while (++i < req->request.num_mapped_sgs); - - dwc3_gadget_giveback(dep, req, status); + slot++; + slot %= DWC3_TRB_NUM; + trb = &dep->trb_pool[slot]; + ret = __dwc3_cleanup_done_trbs(dwc, dep, req, trb, + event, status); if (ret) break; - } while (1); + } while (++i < req->request.num_mapped_sgs); + + dwc3_gadget_giveback(dep, req, status); if (usb_endpoint_xfer_isoc(dep->endpoint.desc) && list_empty(&dep->req_queued)) { |