[dpdk-stable] patch 'net/i40e: revert fix of flow director check' has been queued to LTS release 17.11.4

[Yongseok Koh <yskoh@mellanox.com>]

Hi,

FYI, your patch has been queued to LTS release 17.11.4

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 08/15/18. So please
shout if anyone has objections.

Thanks.

Yongseok

---
>From 1a28885450b094608c519b0581e55f3413cc7332 Mon Sep 17 00:00:00 2001
From: Wei Zhao <wei.zhao1@intel.com>
Date: Wed, 1 Aug 2018 10:54:50 +0800
Subject: [PATCH] net/i40e: revert fix of flow director check

[ upstream commit 21ecd2d7ab59060e3123261d1d62a53182029dd0 ]

This reverts commit 7546dc4a1331340ecb665af9af0a005bb8b657c8.

In i40e FDIR PMD code for checking programming status,
when the action of add FDIR filter is ok, i40e NIC will
not write back to programming status descriptor, so if
PMD code check DD is not done after period of time dealy,
it means the add or remove filter action is ok. It only write
back descriptor when fail. So, there is no issue for the original
code.

Fixes: 7546dc4a1331 ("net/i40e: fix check of flow director programming status")

Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
---
 drivers/net/i40e/i40e_fdir.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/i40e/i40e_fdir.c b/drivers/net/i40e/i40e_fdir.c
index ddf694366..6802995f4 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -1381,8 +1381,6 @@ i40e_check_fdir_programming_status(struct i40e_rx_queue *rxq)
 			I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->nb_rx_desc - 1);
 		else
 			I40E_PCI_REG_WRITE(rxq->qrx_tail, rxq->rx_tail - 1);
-	} else {
-		ret = -1;
 	}
 
 	return ret;
-- 
2.11.0