r8169: remove erroneous processing of always set bit.

When set, RxFOVF (resp. RxBOVF) is always 1 (resp. 0).

Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Hayes <hayeswang@realtek.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/drivers/net/r8169.c b/drivers/net/r8169.c
index 78c1d5832792..dff0bf094168 100644
--- a/drivers/net/r8169.c
+++ b/drivers/net/r8169.c
@@ -407,6 +407,7 @@ enum rtl_register_content {
         RxOK            = 0x0001,
 
         /* RxStatusDesc */
+        RxBOVF  = (1 << 24),
         RxFOVF  = (1 << 23),
         RxRWT   = (1 << 22),
         RxRES   = (1 << 21),
@@ -682,6 +683,7 @@ struct rtl8169_private {
         struct mii_if_info mii;
         struct rtl8169_counters counters;
         u32 saved_wolopts;
+        u32 opts1_mask;
 
         struct rtl_fw {
                 const struct firmware *fw;
@@ -3786,6 +3788,9 @@ rtl8169_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         tp->intr_event = cfg->intr_event;
         tp->napi_event = cfg->napi_event;
 
+        tp->opts1_mask = (tp->mac_version != RTL_GIGA_MAC_VER_01) ?
+                ~(RxBOVF | RxFOVF) : ~0;
+
         init_timer(&tp->timer);
         tp->timer.data = (unsigned long) dev;
         tp->timer.function = rtl8169_phy_timer;
@@ -5324,7 +5329,7 @@ static int rtl8169_rx_interrupt(struct net_device *dev,
                 u32 status;
 
                 rmb();
-                status = le32_to_cpu(desc->opts1);
+                status = le32_to_cpu(desc->opts1) & tp->opts1_mask;
 
                 if (status & DescOwn)
                         break;