ixgb: remove unused variable

The variable num_group_tail_writes is initialized but never used otherwise.

The semantic patch that makes this change is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@@
type T;
identifier i;
constant C;
@@

(
extern T i;
|
- T i;
  <+... when != i
- i = C;
  ...+>
)
// </smpl>

Signed-off-by: Julia Lawall <julia@diku.dk>
Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com>
Signed-off-by: Jeff Garzik <jeff@garzik.org>

1 files changed, 0 insertions, 2 deletions

diff --git a/drivers/net/ixgb/ixgb_main.c b/drivers/net/ixgb/ixgb_main.c
index 269e6f805f47..6738b4d097fe 100644
--- a/drivers/net/ixgb/ixgb_main.c
+++ b/drivers/net/ixgb/ixgb_main.c
@@ -2088,14 +2088,12 @@ ixgb_alloc_rx_buffers(struct ixgb_adapter *adapter)
         struct ixgb_buffer *buffer_info;
         struct sk_buff *skb;
         unsigned int i;
-        int num_group_tail_writes;
         long cleancount;
 
         i = rx_ring->next_to_use;
         buffer_info = &rx_ring->buffer_info[i];
         cleancount = IXGB_DESC_UNUSED(rx_ring);
 
-        num_group_tail_writes = IXGB_RX_BUFFER_WRITE;
 
         /* leave three descriptors unused */
         while(--cleancount > 2) {