USB: remove the usb_host_ss_ep_comp structure

This patch (as1375) eliminates the usb_host_ss_ep_comp structure used
for storing a dynamically-allocated copy of the SuperSpeed endpoint
companion descriptor.  The SuperSpeed descriptor is placed directly in
the usb_host_endpoint structure, alongside the standard endpoint
descriptor.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 7 insertions, 15 deletions

diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 4df752cb0f78..fd9e03afd91c 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1010,9 +1010,9 @@ static inline unsigned int xhci_get_endpoint_interval(struct usb_device *udev,
 static inline u32 xhci_get_endpoint_mult(struct usb_device *udev,
                 struct usb_host_endpoint *ep)
 {
-        if (udev->speed != USB_SPEED_SUPER || !ep->ss_ep_comp)
+        if (udev->speed != USB_SPEED_SUPER)
                 return 0;
-        return ep->ss_ep_comp->desc.bmAttributes;
+        return ep->ss_ep_comp.bmAttributes;
 }
 
 static inline u32 xhci_get_endpoint_type(struct usb_device *udev,
@@ -1061,13 +1061,8 @@ static inline u32 xhci_get_max_esit_payload(struct xhci_hcd *xhci,
                         usb_endpoint_xfer_bulk(&ep->desc))
                 return 0;
 
-        if (udev->speed == USB_SPEED_SUPER) {
-                if (ep->ss_ep_comp)
-                        return ep->ss_ep_comp->desc.wBytesPerInterval;
-                xhci_warn(xhci, "WARN no SS endpoint companion descriptor.\n");
-                /* Assume no bursts, no multiple opportunities to send. */
-                return ep->desc.wMaxPacketSize;
-        }
+        if (udev->speed == USB_SPEED_SUPER)
+                return ep->ss_ep_comp.wBytesPerInterval;
 
         max_packet = ep->desc.wMaxPacketSize & 0x3ff;
         max_burst = (ep->desc.wMaxPacketSize & 0x1800) >> 11;
@@ -1131,12 +1126,9 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
                 max_packet = ep->desc.wMaxPacketSize;
                 ep_ctx->ep_info2 |= MAX_PACKET(max_packet);
                 /* dig out max burst from ep companion desc */
-                if (!ep->ss_ep_comp) {
-                        xhci_warn(xhci, "WARN no SS endpoint companion descriptor.\n");
-                        max_packet = 0;
-                } else {
-                        max_packet = ep->ss_ep_comp->desc.bMaxBurst;
-                }
+                max_packet = ep->ss_ep_comp.bMaxBurst;
+                if (!max_packet)
+                        xhci_warn(xhci, "WARN no SS endpoint bMaxBurst\n");
                 ep_ctx->ep_info2 |= MAX_BURST(max_packet);
                 break;
         case USB_SPEED_HIGH: