usb: gadget: add usb_endpoint_descriptor to struct usb_ep

Change usb_ep_enable() prototype to use endpoint
descriptor from usb_ep.

This optimization spares the FDs from saving the
endpoint chosen descriptor. This optimization is
not full though. To fully exploit this change, one
needs to update all the UDCs as well since in the
current implementation each of them saves the
endpoint descriptor in it's internal (and extended)
endpoint structure.

Signed-off-by: Tatyana Brokhman <tlinder@codeaurora.org>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 5 insertions, 5 deletions

diff --git a/drivers/usb/gadget/f_eem.c b/drivers/usb/gadget/f_eem.c
index b3c304290150..fea8e3b08b5f 100644
--- a/drivers/usb/gadget/f_eem.c
+++ b/drivers/usb/gadget/f_eem.c
@@ -176,11 +176,11 @@ static int eem_set_alt(struct usb_function *f, unsigned intf, unsigned alt)
                         gether_disconnect(&eem->port);
                 }
 
-                if (!eem->port.in) {
+                if (!eem->port.in_ep->desc) {
                         DBG(cdev, "init eem\n");
-                        eem->port.in = ep_choose(cdev->gadget,
+                        eem->port.in_ep->desc = ep_choose(cdev->gadget,
                                         eem->hs.in, eem->fs.in);
-                        eem->port.out = ep_choose(cdev->gadget,
+                        eem->port.out_ep->desc = ep_choose(cdev->gadget,
                                         eem->hs.out, eem->fs.out);
                 }
 
@@ -289,9 +289,9 @@ fail:
                 usb_free_descriptors(f->descriptors);
 
         /* we might as well release our claims on endpoints */
-        if (eem->port.out)
+        if (eem->port.out_ep->desc)
                 eem->port.out_ep->driver_data = NULL;
-        if (eem->port.in)
+        if (eem->port.in_ep->desc)
                 eem->port.in_ep->driver_data = NULL;
 
         ERROR(cdev, "%s: can't bind, err %d\n", f->name, status);