xhci: Clean up work to xhci_add_endpoint().

This patch removes unused variable "out_ctx" and avoid multiple calls
to function xhci_get_endpoint_flag().

Signed-off-by: Lin Wang <lin.x.wang@intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 01fcbb5..93200db 100644 (file)
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -1714,7 +1714,7 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
                struct usb_host_endpoint *ep)
 {
        struct xhci_hcd *xhci;
-       struct xhci_container_ctx *in_ctx, *out_ctx;
+       struct xhci_container_ctx *in_ctx;
        unsigned int ep_index;
        struct xhci_input_control_ctx *ctrl_ctx;
        u32 added_ctxs;
@@ -1745,7 +1745,6 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
 
        virt_dev = xhci->devs[udev->slot_id];
        in_ctx = virt_dev->in_ctx;
-       out_ctx = virt_dev->out_ctx;
        ctrl_ctx = xhci_get_input_control_ctx(xhci, in_ctx);
        if (!ctrl_ctx) {
                xhci_warn(xhci, "%s: Could not get input context, bad type.\n",
@@ -1758,8 +1757,7 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
         * to add it again without dropping it, reject the addition.
         */
        if (virt_dev->eps[ep_index].ring &&
-                       !(le32_to_cpu(ctrl_ctx->drop_flags) &
-                               xhci_get_endpoint_flag(&ep->desc))) {
+                       !(le32_to_cpu(ctrl_ctx->drop_flags) & added_ctxs)) {
                xhci_warn(xhci, "Trying to add endpoint 0x%x "
                                "without dropping it.\n",
                                (unsigned int) ep->desc.bEndpointAddress);
@@ -1769,8 +1767,7 @@ int xhci_add_endpoint(struct usb_hcd *hcd, struct usb_device *udev,
        /* If the HCD has already noted the endpoint is enabled,
         * ignore this request.
         */
-       if (le32_to_cpu(ctrl_ctx->add_flags) &
-           xhci_get_endpoint_flag(&ep->desc)) {
+       if (le32_to_cpu(ctrl_ctx->add_flags) & added_ctxs) {
                xhci_warn(xhci, "xHCI %s called with enabled ep %p\n",
                                __func__, ep);
                return 0;