4.4-stable review patch. If anyone has any objections, please let me know.
------------------
[ Upstream commit d0f71afffa1c3d5a36a4a278f1dbbd2643176dc3 ]
This is the same patch as for ixgbe but applied differently according to
busy polling. See commit 5d6002b7b822c74 ("ixgbe: Fix handling of NAPI
budget when multiple queues are enabled per vector")
Signed-off-by: William Dauchy <william@xxxxxxxxx>
Tested-by: Phil Schmitt <phillip.j.schmitt@xxxxxxxxx>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
index 50bbad37d640..723bda33472a 100644
--- a/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
+++ b/drivers/net/ethernet/intel/ixgbevf/ixgbevf_main.c
@@ -1014,6 +1014,8 @@ static int ixgbevf_poll(struct napi_struct *napi, int budget)
ixgbevf_for_each_ring(ring, q_vector->tx)
clean_complete &= ixgbevf_clean_tx_irq(q_vector, ring);
+ if (budget <= 0)
+ return budget;
#ifdef CONFIG_NET_RX_BUSY_POLL
if (!ixgbevf_qv_lock_napi(q_vector))
return budget;
--
2.17.1
