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usbip: vudc: Refactor init_vudc_hw() to be more obvious 

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.opasiak@samsung.com>
Acked-by: Shuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Krzysztof Opasiak 2016-12-02 18:42:22 +01:00 committed by Greg Kroah-Hartman
parent 3e448e13a6
commit b282a118eb
1 changed files with 22 additions and 21 deletions
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43
drivers/usb/usbip/vudc_dev.c
View File

@ -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;
if (i == 0) {
ep->ep.caps.type_control = true;
ep->ep.caps.dir_out = true;
ep->ep.caps.dir_in = true;
} else {
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;
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);
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;
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;