igb: Don't receive packets when the napi budget == 0

[deliverable/linux.git] / drivers / net / ethernet / intel / igb / igb_main.c

diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index f81d87cfcc8da3ce3c6d6cfc7f7ecbd1f1749562..d6b11522fed7a3096a365cf97795234b9eccf2d8 100644 (file)
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -6946,7 +6946,7 @@ static bool igb_clean_rx_irq(struct igb_q_vector *q_vector, const int budget)
        unsigned int total_bytes = 0, total_packets = 0;
        u16 cleaned_count = igb_desc_unused(rx_ring);
 
-       do {
+       while (likely(total_packets < budget)) {
                union e1000_adv_rx_desc *rx_desc;
 
                /* return some buffers to hardware, one at a time is too slow */
@@ -6998,7 +6998,7 @@ static bool igb_clean_rx_irq(struct igb_q_vector *q_vector, const int budget)
 
                /* update budget accounting */
                total_packets++;
-       } while (likely(total_packets < budget));
+       }
 
        /* place incomplete frames back on ring for completion */
        rx_ring->skb = skb;