drivers: usb: gadget: ether: use net device priv to pass usb ether priv

Use net device priv to pass usb ether priv and use it in
net device ops callback.

Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>

diff --git a/drivers/usb/gadget/ether.c b/drivers/usb/gadget/ether.c
index 16edeead65af028d456b27cbdd3d800b630821f0..54b8b59b2943a26150fe7710765bd71a92ea8312 100644 (file)
--- a/drivers/usb/gadget/ether.c
+++ b/drivers/usb/gadget/ether.c
@@ -1853,7 +1853,8 @@ static char rndis_resp_buf[8] __attribute__((aligned(sizeof(__le32))));
 
 static int rndis_control_ack(struct eth_device *net)
 {
-       struct eth_dev          *dev = &l_priv->ethdev;
+       struct ether_priv       *priv = (struct ether_priv *)net->priv;
+       struct eth_dev          *dev = &priv->ethdev;
        int                     length;
        struct usb_request      *resp = dev->stat_req;
 
@@ -2335,16 +2336,12 @@ int dm_usb_init(struct eth_dev *e_dev)
 
 static int usb_eth_init(struct eth_device *netdev, bd_t *bd)
 {
-       struct eth_dev *dev = &l_priv->ethdev;
+       struct ether_priv *priv = (struct ether_priv *)netdev->priv;
+       struct eth_dev *dev = &priv->ethdev;
        struct usb_gadget *gadget;
        unsigned long ts;
        unsigned long timeout = USB_CONNECT_TIMEOUT;
 
-       if (!netdev) {
-               error("received NULL ptr");
-               goto fail;
-       }
-
 #ifdef CONFIG_DM_USB
        if (dm_usb_init(dev)) {
                error("USB ether not found\n");
@@ -2379,15 +2376,15 @@ static int usb_eth_init(struct eth_device *netdev, bd_t *bd)
                goto fail;
        }
 
-       l_priv->eth_driver.speed        = DEVSPEED;
-       l_priv->eth_driver.bind         = eth_bind;
-       l_priv->eth_driver.unbind       = eth_unbind;
-       l_priv->eth_driver.setup        = eth_setup;
-       l_priv->eth_driver.reset        = eth_disconnect;
-       l_priv->eth_driver.disconnect   = eth_disconnect;
-       l_priv->eth_driver.suspend      = eth_suspend;
-       l_priv->eth_driver.resume       = eth_resume;
-       if (usb_gadget_register_driver(&l_priv->eth_driver) < 0)
+       priv->eth_driver.speed          = DEVSPEED;
+       priv->eth_driver.bind           = eth_bind;
+       priv->eth_driver.unbind         = eth_unbind;
+       priv->eth_driver.setup          = eth_setup;
+       priv->eth_driver.reset          = eth_disconnect;
+       priv->eth_driver.disconnect     = eth_disconnect;
+       priv->eth_driver.suspend        = eth_suspend;
+       priv->eth_driver.resume         = eth_resume;
+       if (usb_gadget_register_driver(&priv->eth_driver) < 0)
                goto fail;
 
        dev->network_started = 0;
@@ -2422,7 +2419,8 @@ static int usb_eth_send(struct eth_device *netdev, void *packet, int length)
 {
        int                     retval;
        void                    *rndis_pkt = NULL;
-       struct eth_dev          *dev = &l_priv->ethdev;
+       struct ether_priv       *priv = (struct ether_priv *)netdev->priv;
+       struct eth_dev          *dev = &priv->ethdev;
        struct usb_request      *req = dev->tx_req;
        unsigned long ts;
        unsigned long timeout = USB_CONNECT_TIMEOUT;
@@ -2489,7 +2487,8 @@ drop:
 
 static int usb_eth_recv(struct eth_device *netdev)
 {
-       struct eth_dev *dev = &l_priv->ethdev;
+       struct ether_priv *priv = (struct ether_priv *)netdev->priv;
+       struct eth_dev *dev = &priv->ethdev;
 
        usb_gadget_handle_interrupts(0);
 
@@ -2509,12 +2508,8 @@ static int usb_eth_recv(struct eth_device *netdev)
 
 void usb_eth_halt(struct eth_device *netdev)
 {
-       struct eth_dev *dev = &l_priv->ethdev;
-
-       if (!netdev) {
-               error("received NULL ptr");
-               return;
-       }
+       struct ether_priv *priv = (struct ether_priv *)netdev->priv;
+       struct eth_dev *dev = &priv->ethdev;
 
        /* If the gadget not registered, simple return */
        if (!dev->gadget)
@@ -2541,7 +2536,7 @@ void usb_eth_halt(struct eth_device *netdev)
                dev->network_started = 0;
        }
 
-       usb_gadget_unregister_driver(&l_priv->eth_driver);
+       usb_gadget_unregister_driver(&priv->eth_driver);
 #ifdef CONFIG_DM_USB
        device_remove(dev->usb_udev);
 #else
@@ -2559,6 +2554,7 @@ int usb_eth_initialize(bd_t *bi)
        netdev->send = usb_eth_send;
        netdev->recv = usb_eth_recv;
        netdev->halt = usb_eth_halt;
+       netdev->priv = l_priv;
 
 #ifdef CONFIG_MCAST_TFTP
   #error not supported