e1000e: remove workaround for e1000 hardware

During the move of support for PCIe devices from e1000 to e1000e, this
workaround necessary only for older non-PCIe devices was mistakenly
copied into e1000e.  Remove it.

Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Acked-by: Bruce Allan <bruce.w.allan@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/e1000e/netdev.c b/drivers/net/e1000e/netdev.c
index 04e007d..1b5a0c8 100644 (file)
--- a/drivers/net/e1000e/netdev.c
+++ b/drivers/net/e1000e/netdev.c
@@ -3831,11 +3831,6 @@ static int e1000_tx_map(struct e1000_adapter *adapter,
                buffer_info = &tx_ring->buffer_info[i];
                size = min(len, max_per_txd);
 
-               /* Workaround for premature desc write-backs
-                * in TSO mode.  Append 4-byte sentinel desc */
-               if (mss && !nr_frags && size == len && size > 8)
-                       size -= 4;
-
                buffer_info->length = size;
                /* set time_stamp *before* dma to help avoid a possible race */
                buffer_info->time_stamp = jiffies;
@@ -3869,10 +3864,6 @@ static int e1000_tx_map(struct e1000_adapter *adapter,
                while (len) {
                        buffer_info = &tx_ring->buffer_info[i];
                        size = min(len, max_per_txd);
-                       /* Workaround for premature desc write-backs
-                        * in TSO mode.  Append 4-byte sentinel desc */
-                       if (mss && f == (nr_frags-1) && size == len && size > 8)
-                               size -= 4;
 
                        buffer_info->length = size;
                        buffer_info->time_stamp = jiffies;