Compute request size once before the loop instead of computing it in each
loop iteration.
Signed-off-by: Robert Baldyga <r.baldyga@xxxxxxxxxxx>
---
drivers/usb/gadget/function/f_sourcesink.c | 45 +++++++++++++++---------------
1 file changed, 22 insertions(+), 23 deletions(-)
diff --git a/drivers/usb/gadget/function/f_sourcesink.c b/drivers/usb/gadget/function/f_sourcesink.c
index 1d6ec88..a8b68c6 100644
--- a/drivers/usb/gadget/function/f_sourcesink.c
+++ b/drivers/usb/gadget/function/f_sourcesink.c
@@ -591,31 +591,30 @@ static int source_sink_start_ep(struct f_sourcesink *ss, bool is_in,
{
struct usb_ep *ep;
struct usb_request *req;
- int i, size, status;
-
- for (i = 0; i < 8; i++) {
- if (is_iso) {
- switch (speed) {
- case USB_SPEED_SUPER:
- size = ss->isoc_maxpacket *
- (ss->isoc_mult + 1) *
- (ss->isoc_maxburst + 1);
- break;
- case USB_SPEED_HIGH:
- size = ss->isoc_maxpacket * (ss->isoc_mult + 1);
- break;
- default:
- size = ss->isoc_maxpacket > 1023 ?
- 1023 : ss->isoc_maxpacket;
- break;
- }
- ep = is_in ? ss->iso_in_ep : ss->iso_out_ep;
- req = ss_alloc_ep_req(ep, size);
- } else {
- ep = is_in ? ss->in_ep : ss->out_ep;
- req = ss_alloc_ep_req(ep, 0);
+ int i, size = 0, status;
+
+ if (is_iso) {
+ switch (speed) {
+ case USB_SPEED_SUPER:
+ size = ss->isoc_maxpacket *
+ (ss->isoc_mult + 1) *
+ (ss->isoc_maxburst + 1);
+ break;
+ case USB_SPEED_HIGH:
+ size = ss->isoc_maxpacket * (ss->isoc_mult + 1);
+ break;
+ default:
+ size = ss->isoc_maxpacket > 1023 ?
+ 1023 : ss->isoc_maxpacket;
+ break;
}
+ ep = is_in ? ss->iso_in_ep : ss->iso_out_ep;
+ } else {
+ ep = is_in ? ss->in_ep : ss->out_ep;
+ }
+ for (i = 0; i < 8; i++) {
+ req = ss_alloc_ep_req(ep, size);
if (!req)
return -ENOMEM;
--
1.9.1
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