r8152: check linking status with netif_carrier_ok

Replace (tp->speed & LINK_STATUS) with netif_carrier_ok().

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c
index ff122fa..6667809 100644 (file)
--- a/drivers/net/usb/r8152.c
+++ b/drivers/net/usb/r8152.c
@@ -581,7 +581,6 @@ struct r8152 {
        u16 ocp_base;
        u8 *intr_buff;
        u8 version;
-       u8 speed;
 };
 
 enum rtl_version {
@@ -1157,12 +1156,12 @@ static void intr_callback(struct urb *urb)
 
        d = urb->transfer_buffer;
        if (INTR_LINK & __le16_to_cpu(d[0])) {
-               if (!(tp->speed & LINK_STATUS)) {
+               if (!netif_carrier_ok(tp->netdev)) {
                        set_bit(RTL8152_LINK_CHG, &tp->flags);
                        schedule_delayed_work(&tp->schedule, 0);
                }
        } else {
-               if (tp->speed & LINK_STATUS) {
+               if (netif_carrier_ok(tp->netdev)) {
                        set_bit(RTL8152_LINK_CHG, &tp->flags);
                        schedule_delayed_work(&tp->schedule, 0);
                }
@@ -1894,7 +1893,7 @@ static void rtl8152_set_rx_mode(struct net_device *netdev)
 {
        struct r8152 *tp = netdev_priv(netdev);
 
-       if (tp->speed & LINK_STATUS) {
+       if (netif_carrier_ok(netdev)) {
                set_bit(RTL8152_SET_RX_MODE, &tp->flags);
                schedule_delayed_work(&tp->schedule, 0);
        }
@@ -2918,21 +2917,20 @@ static void set_carrier(struct r8152 *tp)
        speed = rtl8152_get_speed(tp);
 
        if (speed & LINK_STATUS) {
-               if (!(tp->speed & LINK_STATUS)) {
+               if (!netif_carrier_ok(netdev)) {
                        tp->rtl_ops.enable(tp);
                        set_bit(RTL8152_SET_RX_MODE, &tp->flags);
                        netif_carrier_on(netdev);
                        rtl_start_rx(tp);
                }
        } else {
-               if (tp->speed & LINK_STATUS) {
+               if (netif_carrier_ok(netdev)) {
                        netif_carrier_off(netdev);
                        napi_disable(&tp->napi);
                        tp->rtl_ops.disable(tp);
                        napi_enable(&tp->napi);
                }
        }
-       tp->speed = speed;
 }
 
 static void rtl_work_func_t(struct work_struct *work)
@@ -2964,7 +2962,7 @@ static void rtl_work_func_t(struct work_struct *work)
 
        /* don't schedule napi before linking */
        if (test_bit(SCHEDULE_NAPI, &tp->flags) &&
-           (tp->speed & LINK_STATUS)) {
+           netif_carrier_ok(tp->netdev)) {
                clear_bit(SCHEDULE_NAPI, &tp->flags);
                napi_schedule(&tp->napi);
        }
@@ -2987,8 +2985,7 @@ static int rtl8152_open(struct net_device *netdev)
        if (res)
                goto out;
 
-       /* set speed to 0 to avoid autoresume try to submit rx */
-       tp->speed = 0;
+       netif_carrier_off(netdev);
 
        res = usb_autopm_get_interface(tp->intf);
        if (res < 0) {
@@ -3005,7 +3002,7 @@ static int rtl8152_open(struct net_device *netdev)
                cancel_delayed_work_sync(&tp->schedule);
 
                /* disable the tx/rx, if the workqueue has enabled them. */
-               if (tp->speed & LINK_STATUS)
+               if (netif_carrier_ok(netdev))
                        tp->rtl_ops.disable(tp);
        }
 
@@ -3014,7 +3011,6 @@ static int rtl8152_open(struct net_device *netdev)
        rtl8152_set_speed(tp, AUTONEG_ENABLE,
                          tp->mii.supports_gmii ? SPEED_1000 : SPEED_100,
                          DUPLEX_FULL);
-       tp->speed = 0;
        netif_carrier_off(netdev);
        netif_start_queue(netdev);
        set_bit(WORK_ENABLE, &tp->flags);
@@ -3340,7 +3336,7 @@ static int rtl8152_resume(struct usb_interface *intf)
                        rtl_runtime_suspend_enable(tp, false);
                        clear_bit(SELECTIVE_SUSPEND, &tp->flags);
                        set_bit(WORK_ENABLE, &tp->flags);
-                       if (tp->speed & LINK_STATUS)
+                       if (netif_carrier_ok(tp->netdev))
                                rtl_start_rx(tp);
                } else {
                        tp->rtl_ops.up(tp);
@@ -3348,7 +3344,6 @@ static int rtl8152_resume(struct usb_interface *intf)
                                          tp->mii.supports_gmii ?
                                          SPEED_1000 : SPEED_100,
                                          DUPLEX_FULL);
-                       tp->speed = 0;
                        netif_carrier_off(tp->netdev);
                        set_bit(WORK_ENABLE, &tp->flags);
                }