[dpdk-stable] patch 'net/bnxt: remove duplicate barrier' has been queued to LTS release 17.11.10

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to LTS release 17.11.10

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 12/21/19. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Thanks.

Luca Boccassi

---
>From acd94bdd9d93194758dc47a998fab28d2117860d Mon Sep 17 00:00:00 2001
From: Gavin Hu <gavin.hu at arm.com>
Date: Mon, 16 Sep 2019 19:27:16 +0800
Subject: [PATCH] net/bnxt: remove duplicate barrier

[ upstream commit 4a1721107c30603e078a611e99a4183de178fd7d ]

As there is an inclusive rte_io_wmb within the following rte_write32()
API who rings the doorbell, this makes the above rte_wmb unnecessary and
remove it.

Fixes: 1cd45aeb3270 ("net/bnxt: support Stratus VF device")

Signed-off-by: Gavin Hu <gavin.hu at arm.com>
Reviewed-by: Steve Capper <steve.capper at arm.com>
Reviewed-by: Ruifeng Wang <ruifeng.wang at arm.com>
Reviewed-by: Phil Yang <phil.yang at arm.com>
Acked-by: Ajit Khaparde <ajit.khaparde at broadcom.com>
---
 drivers/net/bnxt/bnxt_hwrm.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
index 815bad97b7..a28439f51c 100644
--- a/drivers/net/bnxt/bnxt_hwrm.c
+++ b/drivers/net/bnxt/bnxt_hwrm.c
@@ -123,9 +123,6 @@ static int bnxt_hwrm_send_message(struct bnxt *bp, void *msg,
 		data = (uint32_t *)&short_input;
 		msg_len = sizeof(short_input);
 
-		/* Sync memory write before updating doorbell */
-		rte_wmb();
-
 		max_req_len = BNXT_HWRM_SHORT_REQ_LEN;
 	}
 
-- 
2.20.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2019-12-19 14:32:27.931104213 +0000
+++ 0040-net-bnxt-remove-duplicate-barrier.patch	2019-12-19 14:32:25.901293781 +0000
@@ -1,14 +1,15 @@
-From 4a1721107c30603e078a611e99a4183de178fd7d Mon Sep 17 00:00:00 2001
+From acd94bdd9d93194758dc47a998fab28d2117860d Mon Sep 17 00:00:00 2001
 From: Gavin Hu <gavin.hu at arm.com>
 Date: Mon, 16 Sep 2019 19:27:16 +0800
 Subject: [PATCH] net/bnxt: remove duplicate barrier
 
+[ upstream commit 4a1721107c30603e078a611e99a4183de178fd7d ]
+
 As there is an inclusive rte_io_wmb within the following rte_write32()
 API who rings the doorbell, this makes the above rte_wmb unnecessary and
 remove it.
 
 Fixes: 1cd45aeb3270 ("net/bnxt: support Stratus VF device")
-Cc: stable at dpdk.org
 
 Signed-off-by: Gavin Hu <gavin.hu at arm.com>
 Reviewed-by: Steve Capper <steve.capper at arm.com>
@@ -20,10 +21,10 @@
  1 file changed, 3 deletions(-)
 
 diff --git a/drivers/net/bnxt/bnxt_hwrm.c b/drivers/net/bnxt/bnxt_hwrm.c
-index 174dc75d54..e73d8ed76a 100644
+index 815bad97b7..a28439f51c 100644
 --- a/drivers/net/bnxt/bnxt_hwrm.c
 +++ b/drivers/net/bnxt/bnxt_hwrm.c
-@@ -127,9 +127,6 @@ static int bnxt_hwrm_send_message(struct bnxt *bp, void *msg,
+@@ -123,9 +123,6 @@ static int bnxt_hwrm_send_message(struct bnxt *bp, void *msg,
  		data = (uint32_t *)&short_input;
  		msg_len = sizeof(short_input);