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igb: remove unneeded cleaned variable in clean_tx_irq path 

The cleaned variable can be replaced by the count of packets cleaned during
the tx interrupt routine so it can be removed.

Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
This commit is contained in:
Alexander Duyck 2008-08-26 04:25:08 -07:00 committed by Jeff Garzik
parent 4662e82b2c
commit fc7d345d11
1 changed files with 2 additions and 5 deletions
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7
drivers/net/igb/igb_main.c
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@ -3617,16 +3617,14 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
unsigned int i;
u32 head, oldhead;
unsigned int count = 0;
bool cleaned = false;
bool retval = true;
unsigned int total_bytes = 0, total_packets = 0;
bool retval = true;
rmb();
head = get_head(tx_ring);
i = tx_ring->next_to_clean;
while (1) {
while (i != head) {
cleaned = true;
tx_desc = E1000_TX_DESC(*tx_ring, i);
buffer_info = &tx_ring->buffer_info[i];
skb = buffer_info->skb;
@ -3643,7 +3641,6 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
}
igb_unmap_and_free_tx_resource(adapter, buffer_info);
tx_desc->upper.data = 0;
i++;
if (i == tx_ring->count)
@ -3665,7 +3662,7 @@ static bool igb_clean_tx_irq(struct igb_ring *tx_ring)
done_cleaning:
tx_ring->next_to_clean = i;
if (unlikely(cleaned &&
if (unlikely(count &&
netif_carrier_ok(netdev) &&
IGB_DESC_UNUSED(tx_ring) >= IGB_TX_QUEUE_WAKE)) {
/* Make sure that anybody stopping the queue after this