[dpdk-stable] patch 'net/i40e: revert fix of flow director check' has been queued to stable release 18.05.1

[Christian Ehrhardt]

Hi,

FYI, your patch has been queued to stable release 18.05.1

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 08/16/18. So please
shout if anyone has objections.

Thanks.

Christian Ehrhardt <christian.ehrhardt at canonical.com>

---
>From e4a983a61f83018064825ab0ba7e4222a65ae02b Mon Sep 17 00:00:00 2001
From: Wei Zhao <wei.zhao1 at 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 at intel.com>
Acked-by: Qi Zhang <qi.z.zhang at 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 7140237a0..a4a61d1c3 100644
--- a/drivers/net/i40e/i40e_fdir.c
+++ b/drivers/net/i40e/i40e_fdir.c
@@ -1361,8 +1361,6 @@ 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;
-- 
2.17.1