[PATCH v2] usbip: vudc: Refactor init_vudc_hw() to be more obvious

[Krzysztof Opasiak]

Current implementation of init_vudc_hw() adds ep0 to ep_list
and then after looping through all endpoints removes it from
that list.

As this may be misleading let's refactor this function
and avoid adding and removing ep0 to eplist and place it
immediately in correct place.

In addition let's remove redundant 0 assignments as ep
array is zeroed during allocation.

Signed-off-by: Krzysztof Opasiak <k.opas...@samsung.com>
---
Changes since v1:
- remove redundant assignments
---
 drivers/usb/usbip/vudc_dev.c | 35 ++++++++++++++++++-----------------
 1 file changed, 18 insertions(+), 17 deletions(-)

diff --git a/drivers/usb/usbip/vudc_dev.c b/drivers/usb/usbip/vudc_dev.c
index 7091848df6c8..70b3540ece2a 100644
--- a/drivers/usb/usbip/vudc_dev.c
+++ b/drivers/usb/usbip/vudc_dev.c
@@ -549,30 +549,34 @@ static int init_vudc_hw(struct vudc *udc)
                sprintf(ep->name, "ep%d%s", num,
                        i ? (is_out ? "out" : "in") : "");
                ep->ep.name = ep->name;
+
+               ep->ep.ops = &vep_ops;
+
+               usb_ep_set_maxpacket_limit(&ep->ep, ~0);
+               ep->ep.max_streams = 16;
+               ep->gadget = &udc->gadget;
+               INIT_LIST_HEAD(&ep->req_queue);
+
                if (i == 0) {
+                       /* ep0 */
                        ep->ep.caps.type_control = true;
                        ep->ep.caps.dir_out = true;
                        ep->ep.caps.dir_in = true;
+
+                       udc->gadget.ep0 = &ep->ep;
                } else {
+                       /* All other eps */
                        ep->ep.caps.type_iso = true;
                        ep->ep.caps.type_int = true;
                        ep->ep.caps.type_bulk = true;
-               }
 
-               if (is_out)
-                       ep->ep.caps.dir_out = true;
-               else
-                       ep->ep.caps.dir_in = true;
+                       if (is_out)
+                               ep->ep.caps.dir_out = true;
+                       else
+                               ep->ep.caps.dir_in = true;
 
-               ep->ep.ops = &vep_ops;
-               list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
-               ep->halted = ep->wedged = ep->already_seen =
-                       ep->setup_stage = 0;
-               usb_ep_set_maxpacket_limit(&ep->ep, ~0);
-               ep->ep.max_streams = 16;
-               ep->gadget = &udc->gadget;
-               ep->desc = NULL;
-               INIT_LIST_HEAD(&ep->req_queue);
+                       list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
+               }
        }
 
        spin_lock_init(&udc->lock);
@@ -589,9 +593,6 @@ static int init_vudc_hw(struct vudc *udc)
        ud->eh_ops.reset    = vudc_device_reset;
        ud->eh_ops.unusable = vudc_device_unusable;
 
-       udc->gadget.ep0 = &udc->ep[0].ep;
-       list_del_init(&udc->ep[0].ep.ep_list);
-
        v_init_timer(udc);
        return 0;
 
-- 
2.9.3

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