net: cdc_ncm: remove redundant endpoint pointers

No need to duplicate stuff already in the common usbnet
struct.  We still need to keep our special find_endpoints
function because we need explicit control over the selected
altsetting.

Cc: Alexey Orishko <alexey.orishko@gmail.com>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 19 insertions, 22 deletions

diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index bfab8796730f..a989bd5290a6 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -292,9 +292,9 @@ max_dgram_err:
 }
 
 static void
-cdc_ncm_find_endpoints(struct cdc_ncm_ctx *ctx, struct usb_interface *intf)
+cdc_ncm_find_endpoints(struct usbnet *dev, struct usb_interface *intf)
 {
-        struct usb_host_endpoint *e;
+        struct usb_host_endpoint *e, *in = NULL, *out = NULL;
         u8 ep;
 
         for (ep = 0; ep < intf->cur_altsetting->desc.bNumEndpoints; ep++) {
@@ -303,18 +303,18 @@ cdc_ncm_find_endpoints(struct cdc_ncm_ctx *ctx, struct usb_interface *intf)
                 switch (e->desc.bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) {
                 case USB_ENDPOINT_XFER_INT:
                         if (usb_endpoint_dir_in(&e->desc)) {
-                                if (ctx->status_ep == NULL)
-                                        ctx->status_ep = e;
+                                if (!dev->status)
+                                        dev->status = e;
                         }
                         break;
 
                 case USB_ENDPOINT_XFER_BULK:
                         if (usb_endpoint_dir_in(&e->desc)) {
-                                if (ctx->in_ep == NULL)
-                                        ctx->in_ep = e;
+                                if (!in)
+                                        in = e;
                         } else {
-                                if (ctx->out_ep == NULL)
-                                        ctx->out_ep = e;
+                                if (!out)
+                                        out = e;
                         }
                         break;
 
@@ -322,6 +322,14 @@ cdc_ncm_find_endpoints(struct cdc_ncm_ctx *ctx, struct usb_interface *intf)
                         break;
                 }
         }
+        if (in && !dev->in)
+                dev->in = usb_rcvbulkpipe(dev->udev,
+                                          in->desc.bEndpointAddress &
+                                          USB_ENDPOINT_NUMBER_MASK);
+        if (out && !dev->out)
+                dev->out = usb_sndbulkpipe(dev->udev,
+                                           out->desc.bEndpointAddress &
+                                           USB_ENDPOINT_NUMBER_MASK);
 }
 
 static void cdc_ncm_free(struct cdc_ncm_ctx *ctx)
@@ -477,11 +485,9 @@ advance:
         if (temp)
                 goto error2;
 
-        cdc_ncm_find_endpoints(ctx, ctx->data);
-        cdc_ncm_find_endpoints(ctx, ctx->control);
-
-        if ((ctx->in_ep == NULL) || (ctx->out_ep == NULL) ||
-            (ctx->status_ep == NULL))
+        cdc_ncm_find_endpoints(dev, ctx->data);
+        cdc_ncm_find_endpoints(dev, ctx->control);
+        if (!dev->in || !dev->out || !dev->status)
                 goto error2;
 
         dev->net->ethtool_ops = &cdc_ncm_ethtool_ops;
@@ -496,12 +502,6 @@ advance:
                 dev_info(&dev->udev->dev, "MAC-Address: %pM\n", dev->net->dev_addr);
         }
 
-
-        dev->in = usb_rcvbulkpipe(dev->udev,
-                ctx->in_ep->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
-        dev->out = usb_sndbulkpipe(dev->udev,
-                ctx->out_ep->desc.bEndpointAddress & USB_ENDPOINT_NUMBER_MASK);
-        dev->status = ctx->status_ep;
         dev->rx_urb_size = ctx->rx_max;
 
         /* cdc_ncm_setup will override dwNtbOutMaxSize if it is
diff --git a/include/linux/usb/cdc_ncm.h b/include/linux/usb/cdc_ncm.h
index c14e00fb1667..36e1e153ca2d 100644
--- a/include/linux/usb/cdc_ncm.h
+++ b/include/linux/usb/cdc_ncm.h
@@ -100,9 +100,6 @@ struct cdc_ncm_ctx {
 
         struct net_device *netdev;
         struct usb_device *udev;
-        struct usb_host_endpoint *in_ep;
-        struct usb_host_endpoint *out_ep;
-        struct usb_host_endpoint *status_ep;
         struct usb_interface *control;
         struct usb_interface *data;